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Zheng C, Li C, Zhuang L, Chen Y, Wu Y, Hu R. Effects of Digital Picture Books on Young Children Undergoing Cardiac Catheterisation and Their Family Caregivers: A Randomised Controlled Trial. J Adv Nurs 2024. [PMID: 39258847 DOI: 10.1111/jan.16447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2024] [Revised: 08/02/2024] [Accepted: 08/21/2024] [Indexed: 09/12/2024]
Abstract
AIM To assess the impact of digital picture books on preoperative anxiety, pain and sleep quality in young children undergoing cardiac catheterisation and the anxiety of their family caregivers. DESIGN A randomised, single-blinded, two-arm, parallel-group controlled trial. METHODS Participants are young children aged 2-7 years with congenital heart disease scheduled for cardiac catheterisation and their family caregivers. They were enrolled at Fujian Medical University Union Hospital between September 2022 and July 2023. They were randomised to either a control group receiving usual care or an intervention group receiving digital picture book sessions. Anxiety and pain levels were assessed using standardised scales, and sleep quality was measured using actigraphy. RESULTS The study included 64 pairs of young children and family caregivers. Digital picture books significantly reduced preoperative anxiety and bandage removal pain in children and anxiety in family caregivers. However, there was no statistical difference in sleep quality between the intervention group and the control group. CONCLUSIONS Digital picture books prove to be an effective intervention for reducing anxiety and pain in paediatric cardiac catheterisation patients and anxiety of their family caregivers. The intervention did not affect sleep quality, suggesting the need for additional strategies to address this aspect of the hospital experience. IMPLICATIONS FOR THE PROFESSION AND/OR PATIENT CARE This study demonstrated the effectiveness of digitally illustrated books in reducing preoperative anxiety and pain in young children and anxiety in family caregivers. Digital picture books offer a creative and engaging way to help children and their families cope with the stress and anxiety associated with medical procedures. Further research in this area may lead to the development of more innovative and effective interventions for paediatric patients and their family caregivers. IMPACT The study's impact lies in its innovative approach to addressing the psychological and emotional challenges faced by young children and their family caregivers during the stressful experience of cardiac catheterisation. By demonstrating the efficacy of digital picture books in significantly reducing preoperative anxiety and postoperative pain, the research presents a non-pharmacological, accessible and engaging intervention that can be seamlessly integrated into existing healthcare practices. The findings have the potential to transform paediatric care by offering a safe, developmentally appropriate and cost-effective method to support the emotional well-being of children and their families, thereby enhancing the overall patient experience and clinical outcomes. Moreover, the study's emphasis on family caregiver involvement underscores the importance of a holistic approach to care that considers the needs of both the patient and their support system. PATIENT OR PUBLIC CONTRIBUTION Children and their family caregivers were invited to provide valuable input which has been critical to the development of the intervention. The participant information sheet and consent form, as well as the consent/recruitment process, were reviewed by a consumer advisor advocate from the pilot study. REPORTING METHOD CONSORT. TRIAL REGISTRATION Chinese clinical trial registry: ChiCTR2200063973. Registered on 22 September 2022, https://www.chictr.org.cn/showproj.html?proj=132833.
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Affiliation(s)
- Changhua Zheng
- The School of Nursing, Fujian Medical University, Fuzhou, China
- Department of Cardiology Nursing, Fujian Medical University Union Hospital, Fuzhou, China
| | - Chengyang Li
- The School of Nursing, Fujian Medical University, Fuzhou, China
| | - Lingdan Zhuang
- Department of Rheumatology and Immunology Nursing, Fujian Medical University Union Hospital, Fuzhou, China
| | - YueXiu Chen
- Department of Cardiology Nursing, Fujian Medical University Union Hospital, Fuzhou, China
| | - Yong Wu
- Department of Hematology, Fujian Medical University Union Hospital, Fuzhou, China
| | - Rong Hu
- The School of Nursing, Fujian Medical University, Fuzhou, China
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Streekstra EJ, Scheer-Weijers T, Bscheider M, Fuerst-Recktenwald S, Roth A, van Ijzendoorn SCD, Botden S, de Boode W, Stommel MWJ, Greupink R, Russel FGM, van de Steeg E, de Wildt SN. Age-Specific ADME Gene Expression in Infant Intestinal Enteroids. Mol Pharm 2024; 21:4347-4355. [PMID: 39120063 PMCID: PMC11372835 DOI: 10.1021/acs.molpharmaceut.4c00302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/10/2024]
Abstract
In childhood, developmental changes and environmental interactions highly affect orally dosed drug disposition across the age range. To optimize dosing regimens and ensure safe use of drugs in pediatric patients, understanding this age-dependent biology is necessary. In this proof-of-concept study, we aimed to culture age-specific enteroids from infant tissue which represent its original donor material, specifically for drug transport and metabolism. Enteroid lines from fresh infant tissues (n = 8, age range: 0.3-45 postnatal weeks) and adult tissues (n = 3) were established and expanded to 3D self-organizing enteroids. The gene expression of drug transporters P-gp (ABCB1), BCRP (ABCG2), MRP2 (ABCC2), and PEPT1 (SLC15A1) and drug metabolizing enzymes CYP3A4, CYP2C18, and UGT1A1 was determined with RT-qPCR in fresh tissue and its derivative differentiated enteroids. Expression levels of P-gp, BCRP, MRP2, and CYP3A4 were similar between tissues and enteroids. PEPT1 and CYP2C18 expression was lower in enteroids compared to that in the tissue. The expression of UGT1A1 in the tissue was lower than that in enteroids. The gene expression did not change with the enteroid passage number for all genes studied. Similar maturational patterns in tissues and enteroids were visually observed for P-gp, PEPT1, MRP2, CYP3A4, CYP2C18, and VIL1. In this explorative study, interpatient variability was high, likely due to the diverse patient characteristics of the sampled population (e.g., disease, age, and treatment). To summarize, maturational patterns of clinically relevant ADME genes in tissue were maintained in enteroids. These findings are an important step toward the potential use of pediatric enteroids in pediatric drug development, which in the future may lead to improved pediatric safety predictions during drug development. We reason that such an approach can contribute to a potential age-specific platform to study and predict drug exposure and intestinal safety in pediatrics.
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Affiliation(s)
- Eva J Streekstra
- Department of Pharmacy, Division of Pharmacology and Toxicology, Radboud University Medical Center, Nijmegen 6525GA, The Netherlands
- Department of Metabolic Health Research, Netherlands Organization for Applied Scientific Research (TNO), Leiden 2333BE, The Netherlands
| | - Tom Scheer-Weijers
- Department of Pharmacy, Division of Pharmacology and Toxicology, Radboud University Medical Center, Nijmegen 6525GA, The Netherlands
| | | | | | - Adrian Roth
- F. Hoffmann-La Roche Ltd, Basel CH-4070, Switzerland
| | - Sven C D van Ijzendoorn
- Department of Biomedical Sciences, University of Groningen, University Medical Center Groningen, Groningen 9713GZ, The Netherlands
| | - Sanne Botden
- Department of Pediatric Surgery, Radboud University Medical Center, Amalia Children's Hospital, Nijmegen 6525GA, The Netherlands
| | - Willem de Boode
- Department of Pediatrics, Division of Neonatology, Radboud University Medical Center, Amalia Children's Hospital, Nijmegen 6525GA, The Netherlands
| | - Martijn W J Stommel
- Department of Surgery, Radboud University Medical Center, Nijmegen 6525GA, The Netherlands
| | - Rick Greupink
- Department of Pharmacy, Division of Pharmacology and Toxicology, Radboud University Medical Center, Nijmegen 6525GA, The Netherlands
| | - Frans G M Russel
- Department of Pharmacy, Division of Pharmacology and Toxicology, Radboud University Medical Center, Nijmegen 6525GA, The Netherlands
| | - Evita van de Steeg
- Department of Metabolic Health Research, Netherlands Organization for Applied Scientific Research (TNO), Leiden 2333BE, The Netherlands
| | - Saskia N de Wildt
- Department of Pharmacy, Division of Pharmacology and Toxicology, Radboud University Medical Center, Nijmegen 6525GA, The Netherlands
- Department of Intensive Care, Radboud University Medical Center, Nijmegen 6525GA, The Netherlands
- Department of Neonatal and Pediatric Intensive Care, Erasmus MC Sophia Children's Hospital, Rotterdam 3015GD, The Netherlands
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Yang S, Wei J, Pan X, Li Z, Zhang X, Li Z, Dong X, Hua Z, Li X. Development and validation of individualized tacrolimus dosing software for Chinese pediatric liver transplantation patients: a population pharmacokinetic approach. Eur J Clin Pharmacol 2024; 80:1409-1420. [PMID: 38904798 DOI: 10.1007/s00228-024-03717-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Accepted: 06/14/2024] [Indexed: 06/22/2024]
Abstract
OBJECTIVE We aim to describe the population pharmacokinetics (PPK) of tacrolimus in Chinese pediatric patients under 4 years old after liver transplantation and to develop individualized tacrolimus dosing software. METHODS A total of 663 blood concentrations from 85 patients aged 4.57 months to 3.97 years were collected in this study. PPK analysis was performed using a nonlinear mixed effects modeling approach with the software, Phoenix. Using C#, an individualized tacrolimus dosing software was created. The software was then used to predict the concentrations of another ten pediatric liver transplantation patients to verify the accuracy of said software. The predictive error (PE) and the absolute predictive error (APE) for each predicted time point were computed. RESULTS A one-compartment model with first-order elimination best fitted the data. The apparent volume of distribution (V/F) and apparent clearance (CL/F) were 198.65 L and 2.41 L/h. Postoperative days (POD), total bilirubin (TBIL), and the use of voriconazole significantly influenced tacrolimus apparent clearance. The incorporation of an increasing number of actual blood drug concentrations into the prediction resulted in a decrease in both PE (72%, 17%, 7%) and APE (87%, 53%, 26%). CONCLUSIONS A qualified PPK model of tacrolimus was developed in Chinese pediatric patients. The individualized tacrolimus dosing software could be used as a suitable tool for the personalization of tacrolimus dosing for pediatric patients after liver transplantation.
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Affiliation(s)
- Siyu Yang
- Department of Pharmacy, Beijing Friendship Hospital, Capital Medical University, 95 Yong An Road, Xi Cheng District, Beijing, 100050, China
| | - Jian Wei
- Department of Interventional Radiography, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China
| | - Xueqiang Pan
- Pharmacy Department of Beijing Health Vocational College, No. 128, Jiukeshu East Road, Tongzhou District, Beijing, 101101, China
| | - Ze Li
- Department of Pharmacy, Beijing Friendship Hospital, Capital Medical University, 95 Yong An Road, Xi Cheng District, Beijing, 100050, China
| | - Xuanling Zhang
- Department of Pharmacy, Peking University First Hospital, Beijing, China
| | - Zhe Li
- Department of Pharmacy, Beijing Friendship Hospital, Capital Medical University, 95 Yong An Road, Xi Cheng District, Beijing, 100050, China
| | - Xianzhe Dong
- Department of Pharmacy, Xuanwu Hospital of Capital Medical University, Beijing, 100053, China
| | - Zixin Hua
- Department of Pharmacy, Beijing Friendship Hospital, Capital Medical University, 95 Yong An Road, Xi Cheng District, Beijing, 100050, China
| | - Xingang Li
- Department of Pharmacy, Beijing Friendship Hospital, Capital Medical University, 95 Yong An Road, Xi Cheng District, Beijing, 100050, China.
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Taylor ZL, Green FG, Hossain N, Burckart GJ, Pacanowski M, Schuck RN. Assessment of Dosing Strategies for Pediatric Drug Products. Clin Pharmacol Ther 2024; 116:716-723. [PMID: 38493367 PMCID: PMC11338733 DOI: 10.1002/cpt.3250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 03/02/2024] [Indexed: 03/18/2024]
Abstract
Pediatric drug dosing is challenged by the heterogeneity of developing physiology and ethical considerations surrounding a vulnerable population. Often, pediatric drug dosing leverages findings from the adult population; however, recent regulatory efforts have motivated drug sponsors to pursue pediatric-specific programs to meet an unmet medical need and improve pediatric drug labeling. This paradigm is further complicated by the pathophysiological implications of obesity on drug distribution and metabolism and the roles that body composition and body size play in drug dosing. Therefore, we sought to understand the landscape of pediatric drug dosing by characterizing the dosing strategies from drug products recently approved for pediatric indications identified using FDA Drug Databases and analyze the impact of body size descriptors (age, body surface area, weight) on drug pharmacokinetics for several selected antipsychotics approved in pediatric patients. Our review of these pediatric databases revealed a dependence on body size-guided dosing, with 68% of dosing in pediatric drug labelings being dependent on knowing either the age, body surface area, or weight of the patient to guide dosing for pediatric patients. This dependence on body size-guided dosing drives the need for special consideration when dosing a drug in overweight and obese patients. Exploratory pharmacokinetic analyses in antipsychotics illustrate possible effects of drug exposure when applying different dosing strategies for this class of drugs. Future efforts should aim to further understand the pediatric drug dosing and obesity paradigm across pediatric age ranges and drug classes to optimize drug development and clinical care for this patient population.
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Affiliation(s)
- Zachary L. Taylor
- Division of Clinical Pharmacology, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio
- Cancer and Blood Diseases Institute, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Francis G. Green
- Office of Clinical Pharmacology, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Nayeem Hossain
- Office of Clinical Pharmacology, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Gilbert J. Burckart
- Office of Clinical Pharmacology, Office of Translational Sciences, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Michael Pacanowski
- Office of Clinical Pharmacology, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Robert N. Schuck
- Office of Clinical Pharmacology, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland, USA
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Kelty EA, Murray K, Sanfilippo FM, Preen DB. The safety of methoxyflurane for emergency pain relief in children and adolescents: a retrospective cohort study. PREHOSP EMERG CARE 2024:1-13. [PMID: 39212349 DOI: 10.1080/10903127.2024.2397519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 07/25/2024] [Accepted: 08/16/2024] [Indexed: 09/04/2024]
Abstract
OBJECTIVES The use of methoxyflurane is becoming increasingly popular in the treatment of pain in an emergency setting, in part due to its ease of administration. However, little is known about the risk of serious adverse events in children and adolescents. The aim of this study was to examine the safety of methoxyflurane in a pediatric population. METHODS The study was a retrospective cohort study of pediatric prehospital events using probabilistic linked health data. All ambulance transfers in Western Australia between 1990 and 2016 involving children and adolescent patients were identified. Patients were categorised based on administered analgesia: methoxyflurane, an opioid analgesic, both methoxyflurane and an opioid analgesic, or no analgesic. Hospital and mortality data were linked to transferred patients to identify deaths, adverse drug reactions, liver and kidney toxicity, and re-admissions to hospital following ambulance transfer. Generalized linear models, adjusting for sociodemographic and ambulance transfer characteristics, were used to compare outcomes between children exposed to methoxyflurane and the other three groups. RESULTS The study cohort consisted of 37,211 children, including 9,472 patients (25.5%) treated with methoxyflurane alone, 2,764 (7.4%) treated with an opioid analgesic, 1,235 (3.3%) treated with both methoxyflurane and an opioid analgesic, and 23,740 (63.8%) treated with no analgesic. Death in children and adolescents was uncommon, with less than five deaths (<0.1%) observed in the 12 months following treatment with methoxyflurane and no deaths in those treated with both methoxyflurane and an opioid analgesic. Adverse drug reaction was rare (<0.1%) in patients treated with methoxyflurane, as was liver and kidney toxicity with no case observed. At 90-days follow-up, there was no significant difference in hospitalization in patients treated with methoxyflurane and those treated with methoxyflurane and an opioid analgesic (adjusted OR:1.01, 95%CI:0.85-1.21). Compared with methoxyflurane treated patients, patients treated with an opioid analgesic were more likely to be hospitalized (aOR:1.23, 95%CI:1.09-1.39), while patients treated with no analgesic were less likely to be hospitalized (aOR:0.85, 95%CI:0.79-0.92). CONCLUSIONS In children and adolescents transported by ambulance, the use of methoxyflurane was not associated with an increased risk of hospitalization, death, serious adverse drug reactions or liver and kidney toxicity.
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Affiliation(s)
- Erin A Kelty
- School of Population and Global Health, The University of Western Australia, 35 Stirling Highway, Crawley, Western Australia
| | - Kevin Murray
- School of Population and Global Health, The University of Western Australia, 35 Stirling Highway, Crawley, Western Australia
| | - Frank M Sanfilippo
- School of Population and Global Health, The University of Western Australia, 35 Stirling Highway, Crawley, Western Australia
| | - David B Preen
- School of Population and Global Health, The University of Western Australia, 35 Stirling Highway, Crawley, Western Australia
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Wang X, Deng F, Ji T, Zhang C, Tian Y, Zhang H, Zheng A, Chen Y, He B, Dai W, Zhang H, Zhang Q, Wang X. Impact of Physiological Characteristics on Chylomicron Pathway-Mediated Absorption of Nanocrystals in the Pediatric Population. ACS NANO 2024; 18:23136-23153. [PMID: 39153194 DOI: 10.1021/acsnano.4c05391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/19/2024]
Abstract
Nanocrystals exhibit significant advantages in improving the oral bioavailability of poorly soluble drugs. However, the complicated absorption properties of nanocrystals and the differences in physiological characteristics between children and adults limit pediatric applications of nanocrystals. To elucidate the absorption differences and the underlying mechanisms between children and adults, the pharmacokinetics and tissue distribution of aprepitant crystals with different particle sizes (NC200, NC500, and MC2.5) in rats and mice at different ages were studied, and their absorption mechanisms were investigated in Caco-2 cells, mice, and rats. It was found that childhood animals demonstrated higher bioavailability compared with adolescent and adult animals, which was related to higher bile salt concentration and accelerated drug dissolution in the intestine of childhood animals. The majority of nanocrystals were dissolved and formed micelles under the influence of bile salts. Compared with intact nanocrystals, the bile salt micelle-associated aprepitant was absorbed through the chylomicron pathway, wherein Apo B assisted in the reassembling of the aprepitant micelles after endocytosis. Higher bile salt concentration and Apo B expression in the intestines of childhood animals are both responsible for the higher chylomicron transport pathways. Elucidation of the chylomicron pathway in the varied absorption of nanocrystals among children, adolescents, and adults provides strong theoretical guidance for promoting the rational and safe use of nanocrystals in pediatric populations.
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Affiliation(s)
- Xing Wang
- Department of Pharmacy Administration and Clinical Pharmacy, School of Pharmaceutical Science, Peking University, Beijing 100191, China
- Department of Pharmacy, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Feiyang Deng
- Department of Biomedical Engineering, College of Engineering, Boston University, Boston, Massachusetts 02215, United States
| | - Tianyi Ji
- Department of Pharmacy Administration and Clinical Pharmacy, School of Pharmaceutical Science, Peking University, Beijing 100191, China
| | - Chengning Zhang
- Beijing Key Laboratory of Molecular Pharmaceutics, New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Yang Tian
- State Key Laboratory of Toxicology and Medical Countermeasures, Institute of Pharmacology and Toxicology, Beijing 100850, China
| | - Hui Zhang
- State Key Laboratory of Toxicology and Medical Countermeasures, Institute of Pharmacology and Toxicology, Beijing 100850, China
| | - Aiping Zheng
- State Key Laboratory of Toxicology and Medical Countermeasures, Institute of Pharmacology and Toxicology, Beijing 100850, China
| | - Ying Chen
- Guangdong Institute for Drug Control, Guangzhou 510700, China
- NMPA Key Laboratory for Quality Control and Evaluation of Pharmaceutical Excipients, Guangzhou 510700, China
| | - Bing He
- Beijing Key Laboratory of Molecular Pharmaceutics, New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
- NMPA Key Laboratory for Quality Control and Evaluation of Pharmaceutical Excipients, Guangzhou 510700, China
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100191, China
| | - Wenbing Dai
- Beijing Key Laboratory of Molecular Pharmaceutics, New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Hua Zhang
- Beijing Key Laboratory of Molecular Pharmaceutics, New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Qiang Zhang
- Department of Pharmacy Administration and Clinical Pharmacy, School of Pharmaceutical Science, Peking University, Beijing 100191, China
- Beijing Key Laboratory of Molecular Pharmaceutics, New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100191, China
| | - Xueqing Wang
- Department of Pharmacy Administration and Clinical Pharmacy, School of Pharmaceutical Science, Peking University, Beijing 100191, China
- Beijing Key Laboratory of Molecular Pharmaceutics, New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
- NMPA Key Laboratory for Quality Control and Evaluation of Pharmaceutical Excipients, Guangzhou 510700, China
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Cirrincione LR, Huang KJ, Sequeira GM. Clinical pharmacology in adolescent transgender medicine. Br J Clin Pharmacol 2024. [PMID: 39187392 DOI: 10.1111/bcp.16213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 07/18/2024] [Accepted: 07/19/2024] [Indexed: 08/28/2024] Open
Abstract
Adolescent transgender medicine is a growing clinical field. Gender-affirming medications for transgender youth may include gonadotropin-releasing hormone (GnRH) agonists, gender-affirming hormones or both. To evaluate the potential effects of GnRH agonists (puberty suppression) on pharmacokinetic processes for transgender youth, we searched PubMed from inception to May 2024 for publications on the effects of GnRH agonists on drug absorption, distribution, metabolism or excretion for transgender adolescents or effects on hormones (including gonadotropins, adrenal androgens, sex steroids) that are associated with changes in drug metabolism during puberty in the general adolescent population. No publications discussed the effects of GnRH agonist treatment on pharmacokinetic processes for adolescent transgender people. Sixteen publications observed marked decreases in gonadotropins and sex steroids for both adolescent transgender men and adolescent transgender women and slight effects on adrenal androgens. During GnRH agonist treatment, changes in body composition and body shape were greater for adolescent transgender people than for cisgender adolescent people. Further research is needed to better understand the effects of GnRH agonists on drug metabolism and other pharmacokinetic processes for transgender adolescents receiving GnRH agonists and other gender-affirming medications.
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Affiliation(s)
| | - Kai J Huang
- School of Medicine, University of California San Francisco, San Francisco, CA, USA
| | - Gina M Sequeira
- Seattle Children's Hospital, Seattle, WA, USA
- Department of Pediatrics, University of Washington, Seattle, WA, USA
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Swatek JL, Marco SM, Midthun KM. Over-the-counter medications encountered in the postmortem pediatric population from 2010-2020. J Anal Toxicol 2024; 48:473-481. [PMID: 38771225 DOI: 10.1093/jat/bkae042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 04/30/2024] [Accepted: 05/20/2024] [Indexed: 05/22/2024] Open
Abstract
In forensic toxicology, the pediatric population requires special focus when evaluating positive findings because of the many toxicokinetic and toxicodynamic differences (e.g., metabolic capabilities, body size, etc.) between the pediatric and adult populations. In particular, the administration of over-the-counter (OTC) medications needs careful consideration, as dosages given to the pediatric population (0 days-18 years), particularly those given to individuals <5 years of age, tend to be lower than those given to individuals closer to adulthood. Postmortem pediatric data from 11 years (2010-2020) was compiled. A total of 1413 positive cases contained one or more of the following common OTC medications: antihistamines (brompheniramine, chlorpheniramine, diphenhydramine, doxylamine and pheniramine), pain relievers (acetaminophen, naproxen, ibuprofen and salicylates), cold/flu medications (dextro/levomethorphan, guaifenesin, ephedrine and pseudoephedrine), gastrointestinal aids (dicyclomine and loperamide) and/or sleep aids (melatonin). Antihistamines, cold/flu medications and pain relievers are the most common classes of drugs encountered in the postmortem pediatric population. To evaluate trends, three main age groups were created: ≤5 years old (5 U, birth-5 years old), middle childhood (MC, 6-11 years old), and early adolescence (EA, 12-18 years old). When considering the data, it must be noted that many of these drugs may be co-administered in single and/or multi-drug formulations. In addition, some drugs may have a variety of uses, e.g. antihistamines may also be used as sleep aids. Of note, the prevalence of cases involving those aged 6-11 years old was far less than their younger and older pediatric counterparts. With the widespread availability of OTC medications, unintentional overdoses, recreational misuse and suicidal overdoses can occur in the vulnerable, pediatric population.
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Affiliation(s)
- Jennifer L Swatek
- Toxicological Services, NMS Labs, 200 Welsh Rd, Horsham, PA 19044, USA
| | - Stephanie M Marco
- Toxicological Services, NMS Labs, 200 Welsh Rd, Horsham, PA 19044, USA
| | - Kari M Midthun
- Toxicological Services, NMS Labs, 200 Welsh Rd, Horsham, PA 19044, USA
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Eales B, Helal NA, Vattelana O, Kronfol MM, Fletcher EP, Wang YM, Burckart GJ, Vaidyanathan J, Seo SK, Nounou MI. Population Pharmacokinetics (PopPK) Support for Pediatric Dosing of Biological Products. J Clin Pharmacol 2024. [PMID: 39149895 DOI: 10.1002/jcph.6116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2024] [Accepted: 07/25/2024] [Indexed: 08/17/2024]
Abstract
This study assesses the use of population pharmacokinetics (PopPK) in supporting pediatric dosing of novel biological drug products. The labeling for biologic drug products approved by the US Food and Drug Administration (FDA) from 2002 until 2021 was reviewed to identify those with a pediatric indication. For the drugs with a pediatric indication, the dosing regimen(s) based on age groups, dosing strategy, the use of PopPK to support the dose, and the types of pediatric clinical trials were reviewed. Data were collected from FDA's review documents and product labels on the Drugs@FDA website, and as needed, more clinical trial details were collected from PubMed and clinicaltrials.gov. The role of PopPK analyses in dosing was captured when mentioned in the label or review as playing a role in selecting the approved pediatric dose and/or in verifying the adequacy of the studied dose to support labeling. Between 2002 and 2021, FDA approved 169 biological products, and 78 of 169 (46%) products have an approved indication for which the label contains dosing recommendations for pediatric use. For the 78 products approved in pediatrics, there was a total of 180 clinical trials that included pediatric patients. Phase 3 pediatric trials commonly supported pediatric approval and dosing for the reviewed products (64%, 50/78 products; 56.1%, 101/180 trials). PopPK analyses were reported to play a critical role in dose selection, prediction, and verification for 40 of the 78 products (51%), including informing pediatric dosing in the absence of pediatric data (e.g., drugs approved under animal rule), comparing exposures to the exposure range observed in adults, and informing alternative dosing strategies in certain age or body weight groups. PopPK analyses have been applied in a variety of ways to inform pediatric dosing and support extrapolation from adult data or other pediatric age groups for biologics. Understanding and learning from these past cases on the use of pharmacometrics tools to support pediatric dosing of biological products can inform future pediatric development programs.
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Affiliation(s)
- Brianna Eales
- Department of Pharmacology and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, TX, USA
| | - Nada A Helal
- Irma Lerma Rangel School of Pharmacy, Texas A&M Health Science Center, Texas A&M University, College Station, TX, USA
| | - Olivia Vattelana
- The University of Georgia College of Pharmacy , University of Georgia, Athens, GA, USA
| | - Mohamad M Kronfol
- Office of Clinical Pharmacology (OCP), OTS | CDER | FDA, White Oak Campus, Silver Spring, MD, USA
| | - Elimika Pfuma Fletcher
- Office of Clinical Pharmacology (OCP), OTS | CDER | FDA, White Oak Campus, Silver Spring, MD, USA
| | - Yow-Ming Wang
- Office of Clinical Pharmacology (OCP), OTS | CDER | FDA, White Oak Campus, Silver Spring, MD, USA
| | - Gilbert J Burckart
- Office of Clinical Pharmacology (OCP), OTS | CDER | FDA, White Oak Campus, Silver Spring, MD, USA
| | | | - Shirley K Seo
- Office of Clinical Pharmacology (OCP), OTS | CDER | FDA, White Oak Campus, Silver Spring, MD, USA
| | - Mohamed Ismail Nounou
- Office of Clinical Pharmacology (OCP), OTS | CDER | FDA, White Oak Campus, Silver Spring, MD, USA
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Semere Gebreyesus M, Wasmann RE, McIlleron H, Oladokun R, Okonkwo P, Wiesner L, Denti P, Rawizza HE. Population pharmacokinetics of rifabutin among HIV/TB co-infected children on lopinavir/ritonavir-based antiretroviral therapy. Antimicrob Agents Chemother 2024; 68:e0035424. [PMID: 39037240 PMCID: PMC11304744 DOI: 10.1128/aac.00354-24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Accepted: 07/01/2024] [Indexed: 07/23/2024] Open
Abstract
In adults requiring protease inhibitor (PI)-based antiretroviral therapy (ART), replacing rifampicin with rifabutin is a preferred option, but there is lack of evidence to guide rifabutin dosing in children, especially with PIs. We aimed to characterize the population pharmacokinetics of rifabutin and 25-O-desacetyl rifabutin (des-rifabutin) in children and optimize its dose. We included children from three age cohorts: (i) <1-year-old cohort and (ii) 1- to 3-year-old cohort, who were ART naïve and received 15- to 20-mg/kg/day rifabutin for 2 weeks followed by lopinavir/ritonavir (LPV/r)-based ART with 5.0- or 2.5 mg/kg/day rifabutin, respectively, while the (iii) >3-year-old cohort was ART-experienced and received 2.5-mg/kg/day rifabutin with LPV/r-based ART. Non-linear mixed-effects modeling was used to interpret the data. Monte Carlo simulations were performed to evaluate the study doses and optimize dosing using harmonized weight bands. Twenty-eight children were included, with a median age of 10 (range 0.67-15.0) years, a median weight of 11 (range 4.5-45) kg, and a median weight-for-age z score of -3.33 (range -5.15 to -1.32). A two-compartment disposition model, scaled allometrically by weight, was developed for rifabutin and des-rifabutin. LPV/r increased rifabutin bioavailability by 158% (95% confidence interval: 93.2%-246.0%) and reduced des-rifabutin clearance by 76.6% (74.4%-78.3%). Severely underweight children showed 26% (17.9%-33.7%) lower bioavailability. Compared to adult exposures, simulations resulted in higher median steady-state rifabutin and des-rifabutin exposures in 6-20 kg during tuberculosis-only treatment with 20 mg/kg/day. During LPV/r co-treatment, the 2.5-mg/kg/day dose achieved similar exposures to adults, while the 5-mg/kg/day dose resulted in higher exposures in children >7 kg. All study doses maintained a median Cmax of <900 µg/L. The suggested weight-band dosing matches adult exposures consistently across weights and simplifies dosing.
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Affiliation(s)
- Manna Semere Gebreyesus
- Division of Clinical Pharmacology, Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Roeland E. Wasmann
- Division of Clinical Pharmacology, Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Helen McIlleron
- Division of Clinical Pharmacology, Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Regina Oladokun
- Department of Pediatrics, Faculty of Clinical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | | | - Lubbe Wiesner
- Division of Clinical Pharmacology, Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Paolo Denti
- Division of Clinical Pharmacology, Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Holly E. Rawizza
- Brigham and Women’s Hospital, Boston, Massachusetts, USA
- Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
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11
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Yu S, Li J, He T, Zheng H, Wang S, Sun Y, Wang L, Jing J, Wang R. Age-related differences in drug-induced liver injury: a retrospective single-center study from a large liver disease specialty hospital in China, 2002-2022. Hepatol Int 2024; 18:1202-1213. [PMID: 38898191 PMCID: PMC11297843 DOI: 10.1007/s12072-024-10679-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Accepted: 04/06/2024] [Indexed: 06/21/2024]
Abstract
BACKGROUND AND AIMS Drug-induced liver injury (DILI) is a prevalent adverse reaction in clinical settings. However, there is limited research on age-related differences in DILI. We performed a large-scale retrospective study to delineate the characteristics of DILI across different age groups. METHODS We collected data on a total of 17,946 patients with confirmed DILI hospitalized at the Fifth Medical Center of the People's Liberation Army (PLA) General Hospital in Beijing, China, from January 1, 2002, to December 31, 2022. The patients were stratified based on age into the following groups: children (< 18 years), young adults (18-44 years), middle-aged individuals (45-64 years), and elderly individuals (≥ 65 years). We gathered demographic information, medical histories, laboratory results, disease severity assessments, and mortality statistics for all patients. RESULTS Overall, the distribution of DILI cases across different age groups was as follows: 6.57% were children, 24.82% were young adults, 49.06% were middle-aged individuals, and 19.54% were elderly individuals. The percentage of females increased with age, rising from 36.47% in the pediatric group to 60.51% in the elderly group. Notably, central nervous system agents (15.44%) and anti-infectious agents (21.80%) were more commonly associated with DILI in children, while cardiovascular agents (10.58%) and herbal dietary supplements or traditional medicines (H/TMs) (26.29%) were more prevalent among elderly people with DILI. Among all age groups, hepatocellular-type DILI was more common in the pediatric group (p < 0.001), whereas cholestatic-type DILI and chronic DILI were more prevalent in the elderly group (p < 0.001). Acute liver failure (ALF) and fatal outcomes were more prevalent in the pediatric and elderly groups, particularly in the pediatric group (2.04%, p = 0.041; 0.85%, p = 0.007, respectively). CONCLUSIONS Children and elderly individuals face a higher risk of adverse outcomes following DILI.
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Affiliation(s)
- Simiao Yu
- Department of Hepatology and Traditional Chinese Medicine, The Fifth Medical Center, PLA General Hospital, 100 West Fourth Ring Middle Road, Fengtai District, Beijing, 100039, China.
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, China.
| | - Jiahui Li
- Department of Hepatology and Traditional Chinese Medicine, The Fifth Medical Center, PLA General Hospital, 100 West Fourth Ring Middle Road, Fengtai District, Beijing, 100039, China
| | - Tingting He
- Department of Hepatology and Traditional Chinese Medicine, The Fifth Medical Center, PLA General Hospital, 100 West Fourth Ring Middle Road, Fengtai District, Beijing, 100039, China
| | - Haocheng Zheng
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Sici Wang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Yongqiang Sun
- Department of Hepatology and Traditional Chinese Medicine, The Fifth Medical Center, PLA General Hospital, 100 West Fourth Ring Middle Road, Fengtai District, Beijing, 100039, China
| | - Liping Wang
- Department of Hepatology and Traditional Chinese Medicine, The Fifth Medical Center, PLA General Hospital, 100 West Fourth Ring Middle Road, Fengtai District, Beijing, 100039, China
| | - Jing Jing
- Department of Hepatology and Traditional Chinese Medicine, The Fifth Medical Center, PLA General Hospital, 100 West Fourth Ring Middle Road, Fengtai District, Beijing, 100039, China.
| | - Ruilin Wang
- Department of Hepatology and Traditional Chinese Medicine, The Fifth Medical Center, PLA General Hospital, 100 West Fourth Ring Middle Road, Fengtai District, Beijing, 100039, China.
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12
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Solomon D, Gaines D, Peterson LK. Levetiracetam pharmacokinetics in venovenous extracorporeal membrane oxygenation: A case report. Perfusion 2024:2676591241268422. [PMID: 39052820 DOI: 10.1177/02676591241268422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2024]
Abstract
This case report describes the pharmacokinetics of levetiracetam in a critically ill patient supported on venovenous membrane oxygenation. While levetiracetam has emerged as a first line option to treat seizures in critically ill patients, there is limited information available regarding the impact of extracorporeal membrane oxygenation on the pharmacokinetics of this medication. This report contributes to the limited body of literature describing the pharmacokinetics of medications in extracorporeal membrane oxygenation.
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Affiliation(s)
- Diana Solomon
- Department of Pharmacy, Cooper University Healthcare, Camden, NJ, USA
| | - Devon Gaines
- Division of Critical Care Medicine, Cooper University Healthcare, Camden, NJ, USA
| | - Lars-Kristofer Peterson
- Division of Critical Care Medicine, Cooper University Healthcare, Camden, NJ, USA
- Departments of Medicine and Emergency Medicine, Cooper University Healthcare, Camden, NJ, USA
- Cooper Medical School of Rowan University, Camden, NJ, USA
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13
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Meesters K, Balbas-Martinez V, Allegaert K, Downes KJ, Michelet R. Personalized Dosing of Medicines for Children: A Primer on Pediatric Pharmacometrics for Clinicians. Paediatr Drugs 2024; 26:365-379. [PMID: 38755515 DOI: 10.1007/s40272-024-00633-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/25/2024] [Indexed: 05/18/2024]
Abstract
The widespread use of drugs for unapproved purposes remains common in children, primarily attributable to practical, ethical, and financial constraints associated with pediatric drug research. Pharmacometrics, the scientific discipline that involves the application of mathematical models to understand and quantify drug effects, holds promise in advancing pediatric pharmacotherapy by expediting drug development, extending applications, and personalizing dosing. In this review, we delineate the principles of pharmacometrics, and explore its clinical applications and prospects. The fundamental aspect of any pharmacometric analysis lies in the selection of appropriate methods for quantifying pharmacokinetics and pharmacodynamics. Population pharmacokinetic modeling is a data-driven method ('top-down' approach) to approximate population-level pharmacokinetic parameters, while identifying factors contributing to inter-individual variability. Model-informed precision dosing is increasingly used to leverage population pharmacokinetic models and patient data, to formulate individualized dosing recommendations. Physiologically based pharmacokinetic models integrate physicochemical drug properties with biological parameters ('bottom-up approach'), and is particularly valuable in situations with limited clinical data, such as early drug development, assessing drug-drug interactions, or adapting dosing for patients with specific comorbidities. The effective implementation of these complex models hinges on strong collaboration between clinicians and pharmacometricians, given the pivotal role of data availability. Promising advancements aimed at improving data availability encompass innovative techniques such as opportunistic sampling, minimally invasive sampling approaches, microdialysis, and in vitro investigations. Additionally, ongoing research efforts to enhance measurement instruments for evaluating pharmacodynamics responses, including biomarkers and clinical scoring systems, are expected to significantly bolster our capacity to understand drug effects in children.
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Affiliation(s)
- Kevin Meesters
- Department of Pediatrics, University of British Columbia, 4480 Oak Street, Vancouver, BC, V6H 3V4, Canada.
- Vaccine Evaluation Center, BC Children's Hospital Research Institute, Vancouver, BC, Canada.
| | | | - Karel Allegaert
- Department of Development and Regeneration, KU Leuven, Leuven, Belgium
- Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Leuven, Belgium
- Department of Hospital Pharmacy, Erasmus MC, Rotterdam, The Netherlands
| | - Kevin J Downes
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Division of Infectious Diseases, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Robin Michelet
- Department of Clinical Pharmacy and Biochemistry, Institute of Pharmacy, Freie Universität Berlin, Berlin, Germany
- qPharmetra LLC, Berlin, Germany
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14
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Marques L, Vale N. Toward Personalized Salbutamol Therapy: Validating Virtual Patient-Derived Population Pharmacokinetic Model with Real-World Data. Pharmaceutics 2024; 16:881. [PMID: 39065578 PMCID: PMC11279662 DOI: 10.3390/pharmaceutics16070881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Revised: 06/06/2024] [Accepted: 06/26/2024] [Indexed: 07/28/2024] Open
Abstract
Interindividual variability, influenced by patient-specific factors including age, weight, gender, race, and genetics, among others, contributes to variations in therapeutic response. Population pharmacokinetic (popPK) modeling is an essential tool for pinpointing measurable factors affecting dose-concentration relationships and tailoring dosage regimens to individual patients. Herein, we developed a popPK model for salbutamol, a short-acting β2-agonist (SABA) used in asthma treatment, to identify key patient characteristics that influence treatment response. To do so, synthetic data from physiologically-based pharmacokinetic (PBPK) models was employed, followed by an external validation using real patient data derived from an equivalent study. Thirty-two virtual patients were included in this study. A two-compartment model, with first-order absorption (no delay), and linear elimination best fitted our data, according to diagnostic plots and selection criteria. External validation demonstrated a strong agreement between individual predicted and observed values. The incorporation of covariates into the basic structural model identified a significant impact of age on clearance (Cl) and intercompartmental clearance (Q); gender on Cl and the constant rate of absorption (ka); race on Cl; and weight on Cl in the volume of distribution of the peripheral compartment (V2). This study addresses critical challenges in popPK modeling, particularly data scarcity, incompleteness, and homogeneity, in traditional clinical trials, by leveraging synthetic data from PBPK modeling. Significant associations between individual characteristics and salbutamol's PK parameters, here uncovered, highlight the importance of personalized therapeutic regimens for optimal treatment outcomes.
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Affiliation(s)
- Lara Marques
- PerMed Research Group, Center for Health Technology and Services Research (CINTESIS), Rua Doutor Plácido da Costa, 4200-450 Porto, Portugal;
- CINTESIS@RISE, Faculty of Medicine, University of Porto, Al. Prof. Hernâni Monteiro, 4200-319 Porto, Portugal
- Department of Community Medicine, Health Information and Decision (MEDCIDS), Faculty of Medicine, University of Porto, Rua Doutor Plácido da Costa, 4200-450 Porto, Portugal
| | - Nuno Vale
- PerMed Research Group, Center for Health Technology and Services Research (CINTESIS), Rua Doutor Plácido da Costa, 4200-450 Porto, Portugal;
- CINTESIS@RISE, Faculty of Medicine, University of Porto, Al. Prof. Hernâni Monteiro, 4200-319 Porto, Portugal
- Department of Community Medicine, Health Information and Decision (MEDCIDS), Faculty of Medicine, University of Porto, Rua Doutor Plácido da Costa, 4200-450 Porto, Portugal
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15
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Drevin G, Picard N, Baudriller A, Pena-Martin M, Ferec S, Leuger L, Briet M, Abbara C. Tramadol intoxication in children: An emerging issue. Therapie 2024:S0040-5957(24)00067-2. [PMID: 38871543 DOI: 10.1016/j.therap.2024.05.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 05/14/2024] [Accepted: 05/27/2024] [Indexed: 06/15/2024]
Abstract
BACKGROUND Prescribing tramadol in children raises safety concerns. In Europe, tramadol is still approved and licensed for use in children over 1-3 years of age, depending on the country. In this context, the authors report a case of a tramadol overdose in a 5-year-old-child with a medical history of homozygous sickle cell disease. METHODS Tramadol and M1 were quantified using liquid chromatography with a diode array detection method. CYP2D6 genotype was determined using a next generation sequencing platform (MISeq, Illumina). RESULTS Tramadol and M1 were quantified in blood respectively at 5.48 and 1.32μg/mL at admission, at 0.77 and 0.35μg/mL 12hours later, and at 0.32 and 0.18μg/mL 20hours later. The patient was predicted as a CYP2D6 normal metabolizer (*35/*29). CONCLUSION One of the most important difficulties with the use of tramadol in children relates to its pharmacokinetic (PK) properties. Indeed, tramadol's PK is characterized by a great variability related to: (i) anatomical/physiological factors that impact the volume of distribution (Vd); (ii) CYP2D6 genetic polymorphisms. Considering such an issue is particularly relevant to prevent poisoning. In the reported case, the plasma elimination half-life was estimated at 6.3h, significantly more than those reported in 2-8 year-old children (about 3h). This discrepancy does not seem related to genetic polymorphisms but rather to the Vd. Indeed, the patient was predicted to be a CYP2D6 normal metabolizer (*35/*29). The case presented here highlights the risk associated with the tramadol use in children and emphasizes the importance of considering PK variability among this population. Such variability necessitates greater caution in prescribing tramadol in children and highlights the importance of therapeutic education for families of children treated with this painkiller.
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Affiliation(s)
- Guillaume Drevin
- Service de pharmacologie-toxicologie et pharmacovigilance, centre hospitalo-universitaire d'Angers, 49000 Angers, France.
| | - Nicolas Picard
- Service de pharmacologie, toxicologie et pharmacovigilance, centre hospitalo-universitaire de Limoges, 87000 Limoges, France
| | - Antoine Baudriller
- Service de pharmacologie-toxicologie et pharmacovigilance, centre hospitalo-universitaire d'Angers, 49000 Angers, France; Université d'Angers, 49000 Angers, France
| | - Maria Pena-Martin
- Service de pharmacologie-toxicologie et pharmacovigilance, centre hospitalo-universitaire d'Angers, 49000 Angers, France
| | - Séverine Ferec
- Service de pharmacologie-toxicologie et pharmacovigilance, centre hospitalo-universitaire d'Angers, 49000 Angers, France
| | - Laurent Leuger
- Service de pharmacologie-toxicologie et pharmacovigilance, centre hospitalo-universitaire d'Angers, 49000 Angers, France
| | - Marie Briet
- Service de pharmacologie-toxicologie et pharmacovigilance, centre hospitalo-universitaire d'Angers, 49000 Angers, France; Université d'Angers, 49000 Angers, France; Unité MitoVasc, Team Carme, SFR ICAT, UMR CNRS 6015, Inserm U1083, University Angers, 49000 Angers, France
| | - Chadi Abbara
- Service de pharmacologie-toxicologie et pharmacovigilance, centre hospitalo-universitaire d'Angers, 49000 Angers, France
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16
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Subhadarshini S, Taksande K. A Comprehensive Review on the Role of Melatonin's Anesthetic Applications in Pediatric Care. Cureus 2024; 16:e60575. [PMID: 38894785 PMCID: PMC11184532 DOI: 10.7759/cureus.60575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Accepted: 05/18/2024] [Indexed: 06/21/2024] Open
Abstract
Anesthesia is critical to pediatric care, ensuring the safety and comfort of children undergoing medical procedures. With a growing interest in alternative anesthetic agents, melatonin has emerged as a promising candidate due to its sedative, analgesic, anti-inflammatory, and neuroprotective properties. This comprehensive review explores the potential applications of melatonin in pediatric anesthesia. We delve into the pharmacological characteristics of melatonin, its anesthetic properties, and its clinical applications in pediatric care, including preoperative sedation, adjunct to general anesthesia, postoperative pain management, and prevention of emergence delirium. Additionally, we discuss the safety profile of melatonin, potential adverse effects, and comparative analysis with traditional anesthetics. Finally, we highlight future research directions to provide insights into melatonin's role in pediatric anesthesia and its implications for clinical practice.
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Affiliation(s)
- Sikha Subhadarshini
- Anaesthesiology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Karuna Taksande
- Anaesthesiology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
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17
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Osman M, Khalil J, El-Bahri M, Swalah Mcdahrou J, Fahda R, Mustafa R, Ooi A, Attayee M, Catanzariti R, Pont L, Williams K, Yeung S, Dua K, De Rubis G, Loebenberg R. Decoding epilepsy treatment: A comparative evaluation contrasting cannabidiol pharmacokinetics in adult and paediatric populations. Chem Biol Interact 2024; 394:110988. [PMID: 38574834 DOI: 10.1016/j.cbi.2024.110988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 03/19/2024] [Accepted: 04/02/2024] [Indexed: 04/06/2024]
Abstract
Epilepsy is a neurological disorder characterized by overstimulation of neurotransmitters and uncontrolled seizures. Current medications for epilepsy result in adverse effects or insufficient seizure control, highlighting the necessity to develop alternative therapies. Cannabidiol (CBD), derived from cannabis plants, has been popularly explored as an alternative. CBD is shown to have anti-convulsivatng and muscle-relaxing properties, which have been used in patients with epilepsy with promising results. Current research explores varying dosages in either adult or paediatric patients, with little or no comparison between the two populations. In this review, we aim at consolidating this data and comparing the effect and pharmacokinetic properties of CBD across these two patient populations. When comparing the absorption, there was insufficient data to show differences between paediatric and adult patients. Similarly, limited information was available in comparing the distribution of CBD, but a higher volume of distribution was found in the paediatric population. From the metabolism perspective, the paediatric population had a greater success rate when treated with the drug compared to the adult population. In the elimination, there were no clear distinctions in the clearance rate between the two populations. The drug's half-life was highly variable in both populations, with paediatrics having a lower range than adults. In summary, the paediatric population had a more significant reduction in the severity of seizures compared to the adult population upon CBD treatment. The complexity in which CBD operates highlights the need for further studies of the compound to further understand why differences occur between these two populations.
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Affiliation(s)
- Mohamed Osman
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Jamileh Khalil
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Mostafa El-Bahri
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Jamal Swalah Mcdahrou
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Reem Fahda
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Reymin Mustafa
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Arthur Ooi
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Marwa Attayee
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Rachelle Catanzariti
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Lisa Pont
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Kylie Williams
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Stewart Yeung
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW 2007, Australia; Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, Australia
| | - Kamal Dua
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW 2007, Australia; Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, Australia.
| | - Gabriele De Rubis
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW 2007, Australia; Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, Australia.
| | - Raimar Loebenberg
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, AB, T6G 2E1, Canada.
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18
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Davies K. Medicines management in children and young people: pharmacokinetics, drug calculations and off-label drug use. Nurs Child Young People 2024:e1506. [PMID: 38646839 DOI: 10.7748/ncyp.2024.e1506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/01/2023] [Indexed: 04/23/2024]
Abstract
Medicines management in children and young people presents specific challenges because children differ from adults in their response to medicines. The way in which medicines work inside the human body, or pharmacokinetics, varies according to age and stage of development. Accurate drug calculations for a child rely on the careful consideration of a series of factors, such as weight and height, pharmacokinetics and drug characteristics. This article focuses on three fundamental aspects: pharmacokinetics, drug calculations, and unlicensed and off-label drug use.
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Affiliation(s)
- Kate Davies
- London South Bank University, and honorary research fellow in paediatric endocrinology, Queen Mary University of London, London, England
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19
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Wiesner A, Zagrodzki P, Paśko P. Do dietary interventions exert clinically important effects on the bioavailability of β-lactam antibiotics? A systematic review with meta-analyses. J Antimicrob Chemother 2024; 79:722-757. [PMID: 38334389 DOI: 10.1093/jac/dkae028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 01/17/2024] [Indexed: 02/10/2024] Open
Abstract
BACKGROUND Managing drug-food interactions may help to achieve the optimal action and safety profile of β-lactam antibiotics. METHODS We conducted a systematic review with meta-analyses in adherence to PRISMA guidelines for 32 β-lactams. We included 166 studies assessing the impact of food, beverages, antacids or mineral supplements on the pharmacokinetic (PK) parameters or PK/pharmacodynamic (PK/PD) indices. RESULTS Eighteen of 25 β-lactams for which data on food impact were available had clinically important interactions. We observed the highest negative influence of food (AUC or Cmax decreased by >40%) for ampicillin, cefaclor (immediate-release formulations), cefroxadine, cefradine, cloxacillin, oxacillin, penicillin V (liquid formulations and tablets) and sultamicillin, whereas the highest positive influence (AUC or Cmax increased by >45%) for cefditoren pivoxil, cefuroxime and tebipenem pivoxil (extended-release tablets). Significantly lower bioavailability in the presence of antacids or mineral supplements occurred for 4 of 13 analysed β-lactams, with the highest negative impact for cefdinir (with iron salts) and moderate for cefpodoxime proxetil (with antacids). Data on beverage impact were limited to 11 antibiotics. With milk, the extent of absorption was decreased by >40% for cefalexin, cefradine, penicillin G and penicillin V, whereas it was moderately increased for cefuroxime. No significant interaction occurred with cranberry juice for two tested drugs (amoxicillin and cefaclor). CONCLUSIONS Factors such as physicochemical features of antibiotics, drug formulation, type of intervention, and patient's health state may influence interactions. Due to the poor actuality and diverse methodology of included studies and unproportionate data availability for individual drugs, we judged the quality of evidence as low.
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Affiliation(s)
- Agnieszka Wiesner
- Doctoral School of Medical and Health Sciences, Jagiellonian University Medical College, Krakow, Poland
- Department of Food Chemistry and Nutrition, Faculty of Pharmacy, Jagiellonian University Medical College, Krakow, Poland
| | - Paweł Zagrodzki
- Department of Food Chemistry and Nutrition, Faculty of Pharmacy, Jagiellonian University Medical College, Krakow, Poland
| | - Paweł Paśko
- Department of Food Chemistry and Nutrition, Faculty of Pharmacy, Jagiellonian University Medical College, Krakow, Poland
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20
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Hermans E, Meersschaut J, Van Herteryck I, Devreese M, Walle JV, De Paepe P, De Cock PA. Have We Neglected to Study Target-Site Drug Exposure in Children? A Systematic Review of the Literature. Clin Pharmacokinet 2024; 63:439-468. [PMID: 38551787 DOI: 10.1007/s40262-024-01364-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/15/2024] [Indexed: 05/04/2024]
Abstract
BACKGROUND AND OBJECTIVE Drug dosing should ideally be based on the drug concentrations at the target site, which, for most drugs, corresponds to the tissue. The exact influence of growth and development on drug tissue distribution is unclear. This systematic review compiles the current knowledge on the tissue distribution of systemically applied drugs in children, with the aim to identify priorities in tissue pharmacokinetic (PK) research in this population. METHODS A systematic literature search was performed in the MEDLINE and Embase databases. RESULTS Forty-two relevant articles were identified, of which 71% investigated antibiotics, while drug classes from the other studies were anticancer drugs, antifungals, anthelmintics, sedatives, thyreostatics, immunomodulators, antiarrhythmics, and exon skipping therapy. The majority of studies (83%) applied tissue biopsy as the sampling technique. Tonsil and/or adenoid tissue was most frequently examined (70% of all included patients). The majority of studies had a small sample size (median 9, range 1-93), did not include the youngest age categories (neonates and infants), and were of low reporting quality. Due to the heterogeneous data from different study compounds, dosing schedules, populations, and target tissues, the possibility for comparison of PK data between studies was limited. CONCLUSION The influence of growth and development on drug tissue distribution continues to be a knowledge gap, due to the paucity of tissue PK data in children, especially in the younger age categories. Future research in this field should be encouraged as techniques to safely investigate drug tissue disposition in children are available.
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Affiliation(s)
- Eline Hermans
- Department of Basic and Applied Medical Sciences, Faculty of Medicine and Health Sciences, Ghent University, C. Heymanslaan 10, 9000, Ghent, Belgium.
- Department of Pathobiology, Pharmacology and Zoological Medicine, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium.
- Department of Pediatrics, Ghent University Hospital, C. Heymanslaan 10, 9000, Ghent, Belgium.
| | - Jozefien Meersschaut
- Department of Basic and Applied Medical Sciences, Faculty of Medicine and Health Sciences, Ghent University, C. Heymanslaan 10, 9000, Ghent, Belgium
| | - Isis Van Herteryck
- Department of Pathobiology, Pharmacology and Zoological Medicine, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium
| | - Mathias Devreese
- Department of Pathobiology, Pharmacology and Zoological Medicine, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium
| | - Johan Vande Walle
- Department of Internal Medicine and Pediatrics, Faculty of Medicine and Health Sciences, Ghent University, C. Heymanslaan 10, 9000, Ghent, Belgium
- Department of Pediatric Nephrology, SafePeDrug, Erknet Center, Ghent University Hospital, C. Heymanslaan 10, 9000, Ghent, Belgium
| | - Peter De Paepe
- Department of Basic and Applied Medical Sciences, Faculty of Medicine and Health Sciences, Ghent University, C. Heymanslaan 10, 9000, Ghent, Belgium
- Department of Emergency Medicine, Ghent University Hospital, C. Heymanslaan 10, 9000, Ghent, Belgium
| | - Pieter A De Cock
- Department of Basic and Applied Medical Sciences, Faculty of Medicine and Health Sciences, Ghent University, C. Heymanslaan 10, 9000, Ghent, Belgium.
- Department of Pharmacy, Ghent University Hospital, C. Heymanslaan 10, 9000, Ghent, Belgium.
- Department of Pediatric Intensive Care, Ghent University Hospital, C. Heymanslaan 10, 9000, Ghent, Belgium.
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Chacko IA, Ramachandran G, Sudheesh MS. Unmet technological demands in orodispersible films for age-appropriate paediatric drug delivery. Drug Deliv Transl Res 2024; 14:841-857. [PMID: 37957474 DOI: 10.1007/s13346-023-01451-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/11/2023] [Indexed: 11/15/2023]
Abstract
Age-appropriateness of a formulation is the ability to deliver variable but accurate doses to the paediatric population in a safe and acceptable manner to improve medical adherence and reduce medication errors. Paediatric drug delivery is a challenging area of formulation research due to the existing gap in knowledge. This includes the unknown safety of excipients in the paediatric population, the need for an age-appropriate formulation, the lack of an effective taste-masking method and the lack of paediatric pharmacokinetic data and patient acceptability. It is equally important to establish methods for predicting the biopharmaceutical performance of a paediatric formulation as a function of age. Overcoming the challenges of existing technologies and providing custom-made solutions for the development of age-appropriate formulation is, therefore, a daunting task. Orodispersible films (ODF) are promising as age-appropriate formulations, an unmet need in paediatric drug delivery. New technological improvements in taste masking, improving solubility and rate of dissolution of insoluble drugs, the flexibility of dosing and extemporaneous preparation of these films in a hospital good manufacturing practises (GMP) setup using 3D printing can increase its acceptance among clinicians, patients and caregivers. The current review discusses the problems and possibilities in ODF technology to address the outstanding issues of age-appropriateness, which is the hallmark of patient acceptance and medical adherence in paediatrics.
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Affiliation(s)
- Indhu Annie Chacko
- Department of Pharmaceutics, Amrita School of Pharmacy, AIMS Health Sciences Campus, Amrita Vishwa Vidyapeetham, 682041, Ponekkara, Kochi, India
| | - Gayathri Ramachandran
- Department of Pharmaceutics, Amrita School of Pharmacy, AIMS Health Sciences Campus, Amrita Vishwa Vidyapeetham, 682041, Ponekkara, Kochi, India
| | - M S Sudheesh
- Department of Pharmaceutics, Amrita School of Pharmacy, AIMS Health Sciences Campus, Amrita Vishwa Vidyapeetham, 682041, Ponekkara, Kochi, India.
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22
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Ratier A, Casas M, Grazuleviciene R, Slama R, Småstuen Haug L, Thomsen C, Vafeiadi M, Wright J, Zeman FA, Vrijheid M, Brochot C. Estimating the dynamic early life exposure to PFOA and PFOS of the HELIX children: Emerging profiles via prenatal exposure, breastfeeding, and diet. ENVIRONMENT INTERNATIONAL 2024; 186:108621. [PMID: 38593693 DOI: 10.1016/j.envint.2024.108621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 03/29/2024] [Accepted: 03/31/2024] [Indexed: 04/11/2024]
Abstract
In utero and children's exposure to per- and polyfluoroalkyl substances (PFAS) is a major concern in health risk assessment as early life exposures are suspected to induce adverse health effects. Our work aims to estimate children's exposure (from birth to 12 years old) to PFOA and PFOS, using a Physiologically-Based Pharmacokinetic (PBPK) modelling approach. A model for PFAS was updated to simulate the internal PFAS exposures during the in utero life and childhood, and including individual characteristics and exposure scenarios (e.g., duration of breastfeeding, weight at birth, etc.). Our approach was applied to the HELIX cohort, involving 1,239 mother-child pairs with measured PFOA and PFOS plasma concentrations at two sampling times: maternal and child plasma concentrations (6 to 12 y.o). Our model predicted an increase in plasma concentrations during fetal development and childhood until 2 y.o when the maximum concentrations were reached. Higher plasma concentrations of PFOA than PFOS were predicted until 2 y.o, and then PFOS concentrations gradually became higher than PFOA concentrations. From 2 to 8 y.o, mean concentrations decreased from 3.1 to 1.88 µg/L or ng/mL (PFOA) and from 4.77 to 3.56 µg/L (PFOS). The concentration-time profiles vary with the age and were mostly influenced by in utero exposure (on the first 4 months after birth), breastfeeding (from 5 months to 2 (PFOA) or 5 (PFOS) y.o of the children), and food intake (after 3 (PFOA) or 6 (PFOS) y.o of the children). Similar measured biomarker levels can correspond to large differences in the simulated internal exposures, highlighting the importance to investigate the children's exposure over the early life to improve exposure classification. Our approach demonstrates the possibility to simulate individual internal exposures using PBPK models when measured biomarkers are scarce, helping risk assessors in gaining insight into internal exposure during critical windows, such as early life.
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Affiliation(s)
- Aude Ratier
- INERIS, Unit of Experimental Toxicology and Modelling, Verneuil-en-Halatte, France; PériTox Laboratory, UMR-I 01 INERIS, Université de Picardie Jules Verne, Amiens, France.
| | - Maribel Casas
- ISGlobal, Barcelona, Spain; Universitat Pompeu Fabra (UPF), Barcelona, Spain; CIBER Epidemiologa y Salud Pública (CIBERESP), Madrid, Spain
| | | | - Remy Slama
- Team of Environmental Epidemiology, IAB, Institute for Advanced Biosciences, Inserm, CNRS, CHU-Grenoble-Alpes, University Grenoble-Alpes, CNRS, Grenoble, France
| | - Line Småstuen Haug
- Norwegian Institute of Public Health, Department of Food Safety, Oslo, Norway
| | - Cathrine Thomsen
- Norwegian Institute of Public Health, Department of Food Safety, Oslo, Norway
| | - Marina Vafeiadi
- Department of Social Medicine, Faculty of Medicine, University of Crete, Heraklion, Greece
| | - John Wright
- Bradford Institute for Health Research, Bradford Teaching Hospitals NHS Foundation Trust, Bradford, UK
| | - Florence A Zeman
- INERIS, Unit of Experimental Toxicology and Modelling, Verneuil-en-Halatte, France
| | - Martine Vrijheid
- ISGlobal, Barcelona, Spain; Universitat Pompeu Fabra (UPF), Barcelona, Spain; CIBER Epidemiologa y Salud Pública (CIBERESP), Madrid, Spain
| | - Céline Brochot
- INERIS, Unit of Experimental Toxicology and Modelling, Verneuil-en-Halatte, France; Certara UK Ltd, Simcyp Division, Sheffield, UK
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Ibinaiye T, Rotimi K, Balogun A, Aidenagbon A, Oguoma C, Rassi C, Baker K, Oresanya O, Nnaji C. Receipt of seasonal malaria chemoprevention by age-ineligible children and associated factors in nine implementation states in Nigeria. Malar J 2024; 23:91. [PMID: 38555455 PMCID: PMC10981804 DOI: 10.1186/s12936-024-04916-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 03/22/2024] [Indexed: 04/02/2024] Open
Abstract
BACKGROUND As part of implementation quality standards, community distributors are expected to ensure that only age-eligible children (aged 3-59 months) receive seasonal malaria chemoprevention (SMC) medicines during monthly campaigns. There is uncertainty about the extent to which SMC medicines are administered to ineligible children. This study aimed to assess the magnitude of this occurrence, while exploring the factors associated with it across nine states where SMC was delivered in Nigeria during the 2022 round. METHODS This analysis was based on data from representative end-of-round SMC household surveys conducted in nine SMC-implementing states in Nigeria. Data of 3299 age-ineligible children aged > 5 years and their caregivers were extracted from the survey dataset. Prevalence of receipt of SMC medicines by ineligible children was described by child-, caregiver- and SMC-related factors. Mixed-effects multivariable logistic regression models were fitted to explore the factors associated with ineligible receipt of SMC medicines. RESULTS 30.30% (95% CI 27.80-32.90) of ineligible children sampled received at least one dose of SMC medicines in 2022, the majority (60.60%) of whom were aged 5-6 years while the rest were aged 7-10 years. There were lower odds of an age-ineligible child receiving SMC among caregivers who had knowledge of SMC age eligibility (OR: 0.53, 95% CI 0.37-0.77, p < 0.001), compared with those who were knowledgeable of age eligibility. Higher odds of receipt of SMC were found among age-ineligible children whose caregivers had higher confidence in the protective effect of SMC against malaria (OR: 2.01, 95% CI 1.07-3.72, p = 0.030), compared with those whose caregivers were less confident. Compared with ineligible children of younger caregivers (aged < 20 years), those whose caregivers were older had lower odds of receiving SMC than those whose caregivers were younger; with lower odds among children of caregivers aged 20-39 years (OR: 0.50, 95% CI 0.30-0.82, p = 0.006). CONCLUSIONS This study contributes important evidence on the magnitude of the receipt of SMC medicines by age-ineligible children, while identifying individual and contextual factors associated with it. The findings provide potentially useful insights that can help inform and guide context-specific SMC implementation quality improvement efforts.
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Affiliation(s)
- Taiwo Ibinaiye
- Malaria Consortium, 33 Pope John Paul Street, Maitama, Abuja, FCT, Nigeria.
| | - Kunle Rotimi
- Malaria Consortium, 33 Pope John Paul Street, Maitama, Abuja, FCT, Nigeria
| | | | - Adaeze Aidenagbon
- Malaria Consortium, 33 Pope John Paul Street, Maitama, Abuja, FCT, Nigeria
| | - Chibuzo Oguoma
- Malaria Consortium, 33 Pope John Paul Street, Maitama, Abuja, FCT, Nigeria
| | - Christian Rassi
- Malaria Consortium, The Green House, 244-254 Cambridge Heath Road, London, E2 9DA, UK
| | - Kevin Baker
- Malaria Consortium, The Green House, 244-254 Cambridge Heath Road, London, E2 9DA, UK
- Department of Global Public Health, Karolinska Institute, Stockholm, Sweden
| | - Olusola Oresanya
- Malaria Consortium, 33 Pope John Paul Street, Maitama, Abuja, FCT, Nigeria
| | - Chuks Nnaji
- Malaria Consortium, The Green House, 244-254 Cambridge Heath Road, London, E2 9DA, UK
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Wong Vega M, Starr MC, Brophy PD, Devarajan P, Soranno DE, Akcan-Arikan A, Basu R, Goldstein SL, Charlton JR, Barreto E. Advances in pediatric acute kidney injury pharmacology and nutrition: a report from the 26th Acute Disease Quality Initiative (ADQI) consensus conference. Pediatr Nephrol 2024; 39:981-992. [PMID: 37878137 PMCID: PMC10817838 DOI: 10.1007/s00467-023-06178-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 09/14/2023] [Accepted: 09/15/2023] [Indexed: 10/26/2023]
Abstract
BACKGROUND In the past decade, there have been substantial advances in our understanding of pediatric AKI. Despite this progress, large gaps remain in our understanding of pharmacology and nutritional therapy in pediatric AKI. METHODS During the 26th Acute Disease Quality Initiative (ADQI) Consensus Conference, a multidisciplinary group of experts reviewed the evidence and used a modified Delphi process to achieve consensus on recommendations for gaps and advances in care for pharmacologic and nutritional management of pediatric AKI. The current evidence as well as gaps and opportunities were discussed, and recommendations were summarized. RESULTS Two consensus statements were developed. (1) High-value, kidney-eliminated medications should be selected for a detailed characterization of their pharmacokinetics, pharmacodynamics, and pharmaco-"omics" in sick children across the developmental continuum. This will allow for the optimization of real-time modeling with the goal of improving patient care. Nephrotoxin stewardship will be identified as an organizational priority and supported with necessary resources and infrastructure. (2) Patient-centered outcomes (functional status, quality of life, and optimal growth and development) must drive targeted nutritional interventions to optimize short- and long-term nutrition. Measures of acute and chronic changes of anthropometrics, body composition, physical function, and metabolic control should be incorporated into nutritional assessments. CONCLUSIONS Neonates and children have unique metabolic and growth parameters compared to adult patients. Strategic investments in multidisciplinary translational research efforts are required to fill the knowledge gaps in nutritional requirements and pharmacological best practices for children with or at risk for AKI.
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Affiliation(s)
- Molly Wong Vega
- Renal and Apheresis Services, Texas Children's Hospital, Houston, TX, USA
| | - Michelle C Starr
- Department of Pediatrics, Division of Nephrology, Indiana University School of Medicine, Indianapolis, IN, USA
- Pediatric and Adolescent Comparative Effectiveness Research, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Patrick D Brophy
- Department of Pediatrics, Golisano Children's Hospital, University of Rochester, Rochester, NY, USA
| | - Prasad Devarajan
- Division of Nephrology and Hypertension, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, OH, USA
| | - Danielle E Soranno
- Department of Pediatrics, Division of Nephrology, Indiana University School of Medicine, Indianapolis, IN, USA
- Department of Bioengineering, Purdue University, West Lafayette, IN, USA
| | - Ayse Akcan-Arikan
- Divisions of Critical Care and Nephrology, Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston, TX, USA
| | - Rajit Basu
- Division of Critical Care, Department of Pediatrics, Northwestern University, Chicago, IL, USA
| | - Stuart L Goldstein
- Division of Nephrology and Hypertension, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, OH, USA
| | - Jennifer R Charlton
- Division of Nephrology, Department of Pediatrics, University of Virginia, Box 800386, Charlottesville, VA, 22901, USA.
| | - Erin Barreto
- Department of Pharmacy, Mayo Clinic, Rochester, MN, USA
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Buhl Rasmussen AS, Andersen CL, Weimann A, Yang T, Tron C, Gandemer V, Dalhoff K, Rank CU, Schmiegelow K. Therapeutic drug monitoring of imatinib - how far are we in the leukemia setting? Expert Rev Clin Pharmacol 2024; 17:225-234. [PMID: 38345044 DOI: 10.1080/17512433.2024.2312256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 01/26/2024] [Indexed: 02/21/2024]
Abstract
INTRODUCTION Tyrosine kinase inhibitors (TKIs) have revolutionized survival rates of chronic myeloid leukemia (CML) and Philadelphia chromosome positive (Ph+) acute lymphoblastic leukemia (ALL) and replaced hematopoietic stem cell transplantation (hSCT) as the key treatment option for these patients. More recently, the so-called Philadelphia chromosome-like (Ph-like) ALL has similarly benefitted from TKIs. However, many patients shift from the first generation TKI, imatinib, due to treatment-related toxicities or lack of treatment efficacy. A more personalized approach to TKI treatment could counteract these challenges and potentially be more cost-effective. Therapeutic drug monitoring (TDM) has led to higher response rates and less treatment-related toxicity in adult CML but is rarely used in ALL or in childhood CML. AREAS COVERED This review summarizes different antileukemic treatment indications for TKIs with focus on imatinib and its pharmacokinetic/-dynamic properties as well as opportunities and pitfalls of TDM for imatinib treatment in relation to pharmacogenetics and co-medication for pediatric and adult Ph+/Ph-like leukemias. EXPERT OPINION TDM of imatinib adds value to standard monitoring of ABL-class leukemia by uncovering non-adherence and potentially mitigating adverse effects. Clinically implementable pharmacokinetic/-dynamic models adjusted for relevant pharmacogenetics could improve individual dosing. Prospective trials of TDM-based treatments, including both children and adults, are needed.
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Affiliation(s)
- Anna Sofie Buhl Rasmussen
- Department of Pediatrics and Adolescent Medicine, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | | | - Allan Weimann
- Pediatric Oncology Research Laboratory, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Tianwu Yang
- Department of Drug Design and Pharmacology, University of Copenhagen, Copenhagen, Denmark
| | - Camille Tron
- Department of Biological Pharmacology, Rennes University Hospital, Rennes, France
| | - Virginie Gandemer
- Department of Pediatric Hematology and Oncology, Rennes University Hospital, Rennes, France
| | - Kim Dalhoff
- Department of Clinical Pharmacology, Copenhagen University Hospital, Bispebjerg, Copenhagen, Denmark
- Institute of Clinical Medicine, Faculty of Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Cecilie Utke Rank
- Department of Hematology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Kjeld Schmiegelow
- Department of Pediatrics and Adolescent Medicine, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Institute of Clinical Medicine, Faculty of Medicine, University of Copenhagen, Copenhagen, Denmark
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Watanabe H, Nagano N, Tsuji Y, Noto N, Ayusawa M, Morioka I. Challenges of pediatric pharmacotherapy: A narrative review of pharmacokinetics, pharmacodynamics, and pharmacogenetics. Eur J Clin Pharmacol 2024; 80:203-221. [PMID: 38078929 DOI: 10.1007/s00228-023-03598-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 11/20/2023] [Indexed: 02/07/2024]
Abstract
PURPOSE Personalized pharmacotherapy, including for the pediatric population, provides optimal treatment and has emerged as a major trend owing to advanced drug therapeutics and diversified drug selection. However, it is essential to understand the growth and developmental characteristics of this population to provide appropriate drug therapy. In recent years, clinical pharmacogenetics has accumulated knowledge in pediatric pharmacotherapy, and guidelines from professional organizations, such as the Clinical Pharmacogenetics Implementation Consortium, can be consulted to determine the efficacy of specific drugs and the risk of adverse effects. However, the existence of a large knowledge gap hinders the use of these findings in clinical practice. METHODS We provide a narrative review of the knowledge gaps in pharmacokinetics (PK) and pharmacodynamics (PD) in the pediatric population, focusing on the differences from the perspective of growth and developmental characteristics. In addition, we explored PK/PD in relation to pediatric clinical pharmacogenetics. RESULTS The lack of direct and indirect biomarkers for more accurate assessment of the effects of drug administration limits the current knowledge of PD. In addition, incorporating pharmacogenetic insights as pivotal covariates is indispensable in this comprehensive synthesis for precision therapy; therefore, we have provided recommendations regarding the current status and challenges of personalized pediatric pharmacotherapy. The integration of clinical pharmacogenetics with the health care system and institution of educational programs for health care providers is necessary for its safe and effective implementation. A comprehensive understanding of the physiological and genetic complexities of the pediatric population will facilitate the development of effective and personalized pharmacotherapeutic strategies.
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Affiliation(s)
- Hirofumi Watanabe
- Department of Pediatrics and Child Health, Nihon University School of Medicine, 30-1 Kami-cho Ooyaguchi, Itabashi-ku, Tokyo, 173-8610, Japan.
| | - Nobuhiko Nagano
- Department of Pediatrics and Child Health, Nihon University School of Medicine, 30-1 Kami-cho Ooyaguchi, Itabashi-ku, Tokyo, 173-8610, Japan
| | - Yasuhiro Tsuji
- Laboratory of Clinical Pharmacometrics, School of Pharmacy, Nihon University, Chiba, Japan
| | - Nobutaka Noto
- Department of Pediatrics and Child Health, Nihon University School of Medicine, 30-1 Kami-cho Ooyaguchi, Itabashi-ku, Tokyo, 173-8610, Japan
| | - Mamoru Ayusawa
- Department of Pediatrics and Child Health, Nihon University School of Medicine, 30-1 Kami-cho Ooyaguchi, Itabashi-ku, Tokyo, 173-8610, Japan
| | - Ichiro Morioka
- Department of Pediatrics and Child Health, Nihon University School of Medicine, 30-1 Kami-cho Ooyaguchi, Itabashi-ku, Tokyo, 173-8610, Japan
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Cheung SYA, Hay JL, Lin YW, de Greef R, Bullock J. Pediatric oncology drug development and dosage optimization. Front Oncol 2024; 13:1235947. [PMID: 38348118 PMCID: PMC10860405 DOI: 10.3389/fonc.2023.1235947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 12/29/2023] [Indexed: 02/15/2024] Open
Abstract
Oncology drug discovery and development has always been an area facing many challenges. Phase 1 oncology studies are typically small, open-label, sequential studies enrolling a small sample of adult patients (i.e., 3-6 patients/cohort) in dose escalation. Pediatric evaluations typically lag behind the adult development program. The pediatric starting dose is traditionally referenced on the recommended phase 2 dose in adults with the incorporation of body size scaling. The size of the study is also small and dependent upon the prevalence of the disease in the pediatric population. Similar to adult development, the dose is escalated or de-escalated until reaching the maximum tolerated dose (MTD) that also provides desired biological activities or efficacy. The escalation steps and identification of MTD are often rule-based and do not incorporate all the available information, such as pharmacokinetic (PK), pharmacodynamic (PD), tolerability and efficacy data. Therefore, it is doubtful if the MTD approach is optimal to determine the dosage. Hence, it is important to evaluate whether there is an optimal dosage below the MTD, especially considering the emerging complexity of combination therapies and the long-term tolerability and safety of the treatments. Identification of an optimal dosage is also vital not only for adult patients but for pediatric populations as well. Dosage-finding is much more challenging for pediatric populations due to the limited patient population and differences among the pediatric age range in terms of maturation and ontogeny that could impact PK. Many sponsors defer the pediatric strategy as they are often perplexed by the challenges presented by pediatric oncology drug development (model of action relevancy to pediatric population, budget, timeline and regulatory requirements). This leads to a limited number of approved drugs for pediatric oncology patients. This review article provides the current regulatory landscape, incentives and how they impact pediatric drug discovery and development. We also consider different pediatric cancers and potential clinical trial challenges/opportunities when designing pediatric clinical trials. An outline of how quantitative methods such as pharmacometrics/modelling & simulation can support the dosage-finding and justification is also included. Finally, we provide some reflections that we consider helpful to accelerate pediatric drug discovery and development.
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Wei J, Wang Y. Effectiveness of Faster Aspart versus Insulin Aspart in Children with Type 1 Diabetes: A Meta-Analysis. IRANIAN JOURNAL OF PUBLIC HEALTH 2024; 53:23-34. [PMID: 38694849 PMCID: PMC11058378 DOI: 10.18502/ijph.v53i1.14680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 09/12/2023] [Indexed: 05/04/2024]
Abstract
Background Intensive insulin regimens are recommended to achieve glycemic goals in children and adolescents with type 1 diabetes. Fast-acting insulin aspart (faster aspart) is a new formulation of insulin aspart (IAsp) in which L-arginine and niacinamide are added to assure formulation stability, early absorption, and ultra-fast action. This meta-analysis compares faster aspart with IAsp for blood sugar control in children with type 1 diabetes. This study suggested treating diabetes with insulin, especially in children with type 1 diabetes. Methods PubMed, MEDLINE, Embase, Cochrane Library, Web of Science, and Google Scholar were searched from 2000 to 2023 without language restrictions. Blood glucose monitoring, HbA1c, care model, insulin aspart, IAsp, faster aspart, type 1 diabetes, and pediatrics are Mesh keywords. Cochrane Q statistics and index tested heterogeneity. To account for heterogeneity, Q=145.99 (P-value < 0.001) and =97.26%, and the random-effect model was used to aggregate primary study results. The meta-analysis of randomized-controlled trials was conducted in accordance with PRISMA standards. Results The overall estimate measure i.e. mean difference was found to be 5.44 [0.45, 10.44] and 7.71 [7.16, 8.26] which indicate significant reduction in the HbA1C level in the fast acting insulin aspart group as compared to the IAsp in T1D. However, the mean difference with respect to BMI was found to be -0.06 [-0.60, 0.48] which indicate non-significant reduction. Conclusion Faster aspart had faster onset and more early exposure than IAsp in children and adolescents with greater and more variable anti-insulin antibody levels than adults did. Hence fast-acting insulin aspart may provide better glucose control than IAsp in T1D.
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Affiliation(s)
- Jie Wei
- Department of Pediatrics, The First People’s Hospital of Huzhou, First Affiliated Hospital of Huzhou Normal University, Huzhou 313000, Zhejiang Province, China
| | - Yueer Wang
- Department of Outpatient, The First People’s Hospital of Huzhou, First Affiliated Hospital of Huzhou Normal University, Huzhou 313000, Zhejiang Province, China
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29
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Dehoorne JL, Groth H, Carlé E, De Schrijver I, Sys C, Delbeke P, Kreps EO, Renson T, Bonroy C. Defining a therapeutic range for adalimumab serum concentrations in the management of pediatric noninfectious uveitis, a step towards personalized treatment. Pediatr Rheumatol Online J 2023; 21:148. [PMID: 38124137 PMCID: PMC10734081 DOI: 10.1186/s12969-023-00928-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 11/15/2023] [Indexed: 12/23/2023] Open
Abstract
BACKGROUND Adalimumab is currently considered the most efficacious anti-TNFα agent for childhood noninfectious uveitis (NIU). The objective of this study was to define a therapeutic range for adalimumab trough levels in the treatment of childhood NIU. METHODS A retrospective, observational, pilot study of 36 children with NIU aged < 18 years, treated with adalimumab. Serum adalimumab through levels and adalimumab anti-drug antibodies (ADA) were analysed at least 24 weeks after start adalimumab. RESULTS Adalimumab trough levels were significantly higher in complete responders 11.8 μg/mL (range 6.9-33.0) compared to partial or non-responders 9,2 μg/mL (range 0-13.6) (p = 0,004). Receiver-operator characteristics analyses with an area under the curve of 0,749 (95% CI, 0,561-0,937) defined 9.6 µg/mL as the lower margin for the therapeutic range. This cut-off corresponds with a sensitivity of 88% and a specificity of 56% (positive predictive value, 85%; negative predictive value, 62.5%). A concentration effect curve defined 13 µg/mL as the upper margin. Approximately one-third (30.5%) of patients had an adalimumab trough concentration exceeding 13 µg/mL. Free ADA were observed in 2 patients (5.5%). CONCLUSIONS A therapeutic range of adalimumab trough levels of 9.6 to 13 µg/mL, which corresponds with an optimal clinical effect, was identified. Therapeutic drug monitoring may guide the optimisation of treatment efficacy in children with NIU in the treat-to-target era.
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Affiliation(s)
- Jo L Dehoorne
- Department of Internal Medicine and Pediatrics, Department of Pediatric Rheumatology, Ghent University Hospital, C. Heymanslaan 10, 9000, Ghent, Belgium.
- European Reference Network for Rare Immunodeficiency, Autoinflammatory and Autoimmune Diseases at the Ghent University Hospital, Ghent, Belgium.
| | - Helena Groth
- Ghent University, Faculty of Medicine and Health Sciences, Ghent, Belgium
| | - Emma Carlé
- Ghent University, Faculty of Medicine and Health Sciences, Ghent, Belgium
| | - Ilse De Schrijver
- Department of Ophthalmology and Center for Medical Genetics Ghent, Ghent University Hospital, Ghent, Belgium
- European Reference Network for Rare Eye Diseases at the Ghent University Hospital, Ghent, Belgium
| | - Celine Sys
- Department of Ophthalmology and Center for Medical Genetics Ghent, Ghent University Hospital, Ghent, Belgium
- European Reference Network for Rare Eye Diseases at the Ghent University Hospital, Ghent, Belgium
| | | | - Elke O Kreps
- Department of Ophthalmology and Center for Medical Genetics Ghent, Ghent University Hospital, Ghent, Belgium
- European Reference Network for Rare Eye Diseases at the Ghent University Hospital, Ghent, Belgium
| | - Thomas Renson
- Department of Internal Medicine and Pediatrics, Department of Pediatric Rheumatology, Ghent University Hospital, C. Heymanslaan 10, 9000, Ghent, Belgium
- European Reference Network for Rare Immunodeficiency, Autoinflammatory and Autoimmune Diseases at the Ghent University Hospital, Ghent, Belgium
| | - Carolien Bonroy
- Department of Diagnostic Sciences, Ghent University; Department of Laboratory Medicine, Ghent University Hospital, Ghent, Belgium
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Petkova V, Georgieva D, Dimitrov M, Nikolova I. Off-Label Prescribing in Pediatric Population-Literature Review for 2012-2022. Pharmaceutics 2023; 15:2652. [PMID: 38139994 PMCID: PMC10747118 DOI: 10.3390/pharmaceutics15122652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 11/05/2023] [Accepted: 11/17/2023] [Indexed: 12/24/2023] Open
Abstract
Off-label prescribing is widespread among pediatricians, and it is unlikely that this trend will soon be bound by a uniform legal framework. This is necessitated by the fact that there are four variables: the patient's health condition, the physician's experience and knowledge, the legislative measures (laws, directives, guidelines, and recommendations), and finally, the pharmaceutical industry. There is considerable concern worldwide about the use of off-label medicines in children. We may call it an enormous global problem that is much talked about and written about; however, we should not forget that the goal around which everyone should unite is the patient's life. For healthcare providers, the most important thing will always be the health and preservation of the patient's life, particularly when it comes to children with life-threatening conditions in neonatal and pediatric intensive care units (NICU and PICU). The study aimed to examine the prevalence of off-label drug use in pediatrics. Literature research was conducted, and we included studies from 2012 to 2022 that evaluated off-label drug prevalence in various pediatric patient populations.
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Affiliation(s)
- Valentina Petkova
- Department of Social Pharmacy, Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria
| | - Dilyana Georgieva
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria; (D.G.); (M.D.)
| | - Milen Dimitrov
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria; (D.G.); (M.D.)
| | - Irina Nikolova
- Department of Pharmacology, Pharmacotherapy and Toxicology, Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria;
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Li Z, Follman K, Freshwater E, Engler F, Yel L. Effects of Body Mass and Age on the Pharmacokinetics of Subcutaneous or Hyaluronidase-facilitated Subcutaneous Immunoglobulin G in Primary Immunodeficiency Diseases. J Clin Immunol 2023; 43:2127-2135. [PMID: 37773562 PMCID: PMC10661727 DOI: 10.1007/s10875-023-01572-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Accepted: 08/18/2023] [Indexed: 10/01/2023]
Abstract
PURPOSE To assess the pharmacokinetics (PK) of subcutaneous immunoglobulin (SCIG) and hyaluronidase-facilitated SCIG (fSCIG) therapy across body mass index (BMI) and age categories in patients with primary immunodeficiency diseases (PIDD) previously treated with intravenous immunoglobulin (IVIG). METHODS Using our previously published integrated population PK model based on data from eight clinical trials, simulations were conducted to examine the effects of BMI and age on serum immunoglobulin G (IgG) PK after administration of SCIG 0.15 g/kg weekly or fSCIG 0.6 g/kg every 4 weeks in patients switching from stable IVIG. Patients were assumed to have baseline IgG trough concentrations of 7 g/L (hypothetical protective threshold). RESULTS Mean steady-state serum IgG trough values (Cmin,ss or trough) increased with BMI and age. Mean Cmin,ss was 18% (SCIG) and 16% (fSCIG) higher in the obese than the healthy BMI group. Pediatric patients aged < 18 years had 8-22% (SCIG) and 4-20% (fSCIG) lower mean Cmin,ss values than adults, with the youngest group (2- < 6 years) having the lowest Cmin,ss. All patients across populations maintained Cmin,ss IgG concentrations of ≥ 7 g/L after switching to SCIG or fSCIG. CONCLUSION Both SCIG and fSCIG successfully maintained trough values at or above the hypothetical protective threshold after switching from stable IVIG, irrespective of BMI or age. Differences in trough values between BMI groups and age groups (≤ 22%) may not warrant SCIG or fSCIG dose adjustments based on BMI or age alone; instead, the dosing paradigm should be guided by prior IVIG dose, individual IgG monitoring, and clinical findings.
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Affiliation(s)
- Zhaoyang Li
- Takeda Development Center Americas, Inc., 650 Kendall Street, Cambridge, MA, 02142, USA.
| | - Kristin Follman
- Certara Strategic Consulting, Certara USA, Princeton, NJ, USA
| | - Ed Freshwater
- Certara Strategic Consulting, Certara USA, Princeton, NJ, USA
| | - Frank Engler
- Certara Strategic Consulting, Certara USA, Princeton, NJ, USA
| | - Leman Yel
- Takeda Development Center Americas, Inc., 650 Kendall Street, Cambridge, MA, 02142, USA
- University of California Irvine, Irvine, CA, USA
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Gao YQ, Ihmsen H, Hu ZY, Sun W, Fang YB, Wang Z, Schüttler J, Jeleazcov C, Liu HC. Pharmacokinetics of remimazolam after intravenous infusion in anaesthetised children. Br J Anaesth 2023; 131:914-920. [PMID: 37739904 DOI: 10.1016/j.bja.2023.08.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 07/19/2023] [Accepted: 08/03/2023] [Indexed: 09/24/2023] Open
Abstract
BACKGROUND The pharmacokinetic properties of the new benzodiazepine remimazolam have been studied only in adults. We investigated the pharmacokinetics of remimazolam after i.v. infusion in anaesthetised paediatric patients. METHODS Twenty-four children (2-6 yr, ASA physical status 1-2, BMI 15-18 kg m-2) undergoing general anaesthesia with sevoflurane were enrolled. During surgery, remimazolam was administered as an i.v. infusion over 1 h at 5 mg kg-1 h-1 for 5 min, followed by 1.5 mg kg-1 h-1 for 55 min. Plasma concentrations of remimazolam and its metabolite CNS7054 were determined from arterial blood samples using ultra-high performance liquid chromatography-mass spectrometry. Pharmacokinetic modelling was performed by population analysis. RESULTS Pharmacokinetics were best described by a three-compartment model for remimazolam and a two-compartment model for CNS7054 linked by a transit compartment. Remimazolam showed a high clearance of 15.9 (12.9, 18.2) ml kg-1 min-1 (median, Q25, Q75), a small central volume of distribution of 0.11 (0.08, 0.14) L kg-1 and a short terminal half-life of 67 (49, 85) min. The context-sensitive half-time after an infusion of 4 h was 17 (12, 21) min. The metabolite CNS7054 showed a low clearance of 0.89 (0.33, 1.40) ml kg-1 min-1, a small central volume of distribution of 0.011 (0.005, 0.016) L kg-1, and a long terminal half-life of 321 (230, 770) min. CONCLUSIONS Remimazolam in children was characterised by a high clearance and short context-sensitive half-time. When normalised to weight, pharmacokinetic properties were similar to those reported for adults. CLINICAL TRIAL REGISTRATION ChiCTR2200057629.
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Affiliation(s)
- Yu-Qing Gao
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China; Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Wenzhou Medical University, Wenzhou, Zhejiang, China; Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Harald Ihmsen
- Department of Anesthesiology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Zhi-Yan Hu
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China; Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Wenzhou Medical University, Wenzhou, Zhejiang, China; Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Wei Sun
- Department of Pharmacy, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Yu-Bo Fang
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China; Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Wenzhou Medical University, Wenzhou, Zhejiang, China; Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Zhen Wang
- Laboratory Medicine Center, Allergy Center, Department of Transfusion Medicine, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Jürgen Schüttler
- Department of Anesthesiology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Christian Jeleazcov
- Department of Anesthesiology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Hua-Cheng Liu
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China; Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Wenzhou Medical University, Wenzhou, Zhejiang, China; Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Wenzhou, Zhejiang, China.
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Reitan Riibe S, Heitmann K, Schjøtt J, Riedel B. Healthcare professionals' information need related to antiseizure medication use in breastfeeding patients with epilepsy. Retrospective analysis of enquiries to Norwegian medicines information and pharmacovigilance centers. Epilepsy Behav Rep 2023; 24:100629. [PMID: 37954010 PMCID: PMC10632412 DOI: 10.1016/j.ebr.2023.100629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 10/19/2023] [Accepted: 10/22/2023] [Indexed: 11/14/2023] Open
Abstract
Background Safety information of antiseizure medication (ASM) during breastfeeding is scarce and conflicting. We aimed to identify characteristic traits of safety concerns among healthcare professionals by reviewing enquiries to the Norwegian Regional Medicines Information and Pharmacovigilance Centres (RELIS). Method Enquiries related to breastfeeding, epilepsy, and ASM identified by their ATC-numbers were retrieved from the RELIS database of question-and-answer pairs (QAPs) by combining indexed and Boolean database searches and manual inspection. 112 QAPs were analyzed retrospectively using descriptive statistics. Results Hospital-employed physicians and nurses were puzzled by ambiguous or conflicting drug information advice and called for general information about the compatibility of an ASM with breastfeeding, mainly related to lamotrigine and levetiracetam. Other enquiries were related to co-medication with other drugs, mainly antidepressants. Half of the enquiries were posed after birth, 12 of these motivated by suspected adverse events in the infants. Conclusion Healthcare professionals with acknowledged high competence in the topic were uncertain about the prevailing safety information of ASM during breastfeeding. The fear to harm the infant may lead to the decision not to recommend breastfeeding. Future information strategies should aim to reach these professions, and support their information need on this topic.
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Affiliation(s)
- Sunniva Reitan Riibe
- Department of Clinical Science, University of Bergen, 5021 Bergen, Norway
- Sandnessjøen Helgeland Hospital, Prestmarkveien 1, 8800 Sandnessjøen, Norway
| | - Kristine Heitmann
- Department of Medical Biochemistry and Pharmacology, Haukeland University Hospital, 5021 Bergen, Norway
- Regional Medicines Information and Pharmacovigilance Centre (RELIS Vest), Haukeland University Hospital, 5021 Bergen, Norway
| | - Jan Schjøtt
- Department of Medical Biochemistry and Pharmacology, Haukeland University Hospital, 5021 Bergen, Norway
- Regional Medicines Information and Pharmacovigilance Centre (RELIS Vest), Haukeland University Hospital, 5021 Bergen, Norway
| | - Bettina Riedel
- Department of Clinical Science, University of Bergen, 5021 Bergen, Norway
- Department of Medical Biochemistry and Pharmacology, Haukeland University Hospital, 5021 Bergen, Norway
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Soni I, Chinn GA, Halifax JC, Hellman J, Lynch KL, Sall JW. The Effect of Route of Administration and Vehicle on the Pharmacokinetics of THC and CBD in Adult, Neonate, and Breastfed Sprague-Dawley Rats. Cannabis Cannabinoid Res 2023. [PMID: 37852006 DOI: 10.1089/can.2023.0121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2023] Open
Abstract
Introduction: Basic pharmacokinetic (PK) and pharmacodynamic models of the phytocannabinoids Δ-9-tetrahydrocannabinol (THC) and cannabidiol (CBD) are critical for developing translational models of exposure and toxicity. The neonatal period is a particularly important time to study the effects of cannabinoids, yet there are few studies of cannabinoid PKs by different routes such as direct injection or breast milk ingestion. To study this question, we have developed a translationally relevant rodent model of perinatal cannabinoid administration by measuring plasma levels of THC and CBD after different routes and preparations of these drugs. Materials and Methods: Adult animals and pups were injected with THC or CBD either intraperitoneally or subcutaneously, and plasma was analyzed by liquid chromatography-tandem mass spectrometry to measure cannabinoid levels collected at specified intervals. We also tested the effect of preparation of the drug using an oil-based vehicle (sesame oil) and an aqueous vehicle (Tween). Finally, we measured the plasma levels of cannabinoids in neonatal pups that were transmitted through breast milk after intraperitoneal injection to nursing dams. Results: We observed differences in the PK profiles of cannabinoids in adults and neonatal pups that were dependent on the route of administration and type of vehicle. Cannabinoids prepared in aqueous vehicle, injected intraperitoneally, resulted in a high peak in plasma concentration, which rapidly decreased. In contrast, subcutaneous injections using sesame oil as a vehicle resulted in a slow rise and low plateau in plasma concentration. Intraperitoneal injections with sesame oil as a vehicle resulted in a slower rise compared with aqueous vehicle, but an earlier and higher peak compared with subcutaneous injection. Finally, the levels of THC and CBD that were similar to direct subcutaneous injections were measured in the plasma of pups nursing from intraperitoneally injected dams. Conclusions: The route of administration and the preparation of the drug have important and significant effects on the PK profiles of THC and CBD in rats. These results can be used to create different clinically relevant exposure paradigms in pups and adults, such as short high-dose exposure or a low-chronic exposure, each of which might have significant and varying effects on development.
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Affiliation(s)
- Isha Soni
- Department of Anesthesiology and Perioperative Care and University of California San Francisco, San Francisco, California, USA
| | - Gregory A Chinn
- Department of Anesthesiology and Perioperative Care and University of California San Francisco, San Francisco, California, USA
| | - John C Halifax
- Department of Laboratory Medicine, University of California San Francisco, San Francisco, California, USA
| | - Judith Hellman
- Department of Anesthesiology and Perioperative Care and University of California San Francisco, San Francisco, California, USA
| | - Kara L Lynch
- Department of Laboratory Medicine, University of California San Francisco, San Francisco, California, USA
| | - Jeffrey W Sall
- Department of Anesthesiology and Perioperative Care and University of California San Francisco, San Francisco, California, USA
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Domingues C, Jarak I, Veiga F, Dourado M, Figueiras A. Pediatric Drug Development: Reviewing Challenges and Opportunities by Tracking Innovative Therapies. Pharmaceutics 2023; 15:2431. [PMID: 37896191 PMCID: PMC10610377 DOI: 10.3390/pharmaceutics15102431] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 09/16/2023] [Accepted: 09/25/2023] [Indexed: 10/29/2023] Open
Abstract
The paradigm of pediatric drug development has been evolving in a "carrot-and-stick"-based tactic to address population-specific issues. However, the off-label prescription of adult medicines to pediatric patients remains a feature of clinical practice, which may compromise the age-appropriate evaluation of treatments. Therefore, the United States and the European Pediatric Formulation Initiative have recommended applying nanotechnology-based delivery systems to tackle some of these challenges, particularly applying inorganic, polymeric, and lipid-based nanoparticles. Connected with these, advanced therapy medicinal products (ATMPs) have also been highlighted, with optimistic perspectives for the pediatric population. Despite the results achieved using these innovative therapies, a workforce that congregates pediatric patients and/or caregivers, healthcare stakeholders, drug developers, and physicians continues to be of utmost relevance to promote standardized guidelines for pediatric drug development, enabling a fast lab-to-clinical translation. Therefore, taking into consideration the significance of this topic, this work aims to compile the current landscape of pediatric drug development by (1) outlining the historic regulatory panorama, (2) summarizing the challenges in the development of pediatric drug formulation, and (3) delineating the advantages/disadvantages of using innovative approaches, such as nanomedicines and ATMPs in pediatrics. Moreover, some attention will be given to the role of pharmaceutical technologists and developers in conceiving pediatric medicines.
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Affiliation(s)
- Cátia Domingues
- Univ Coimbra, Laboratory of Drug Development and Technologies, Faculty of Pharmacy, 3000-548 Coimbra, Portugal; (C.D.); (I.J.); (F.V.)
- LAQV-REQUIMTE, Laboratory of Drug Development and Technologies, Faculty of Pharmacy, University of Coimbra, 3000-548 Coimbra, Portugal
- Univ Coimbra, Institute for Clinical and Biomedical Research (iCBR) Area of Environment Genetics and Oncobiology (CIMAGO), Faculty of Medicine, 3000-548 Coimbra, Portugal;
| | - Ivana Jarak
- Univ Coimbra, Laboratory of Drug Development and Technologies, Faculty of Pharmacy, 3000-548 Coimbra, Portugal; (C.D.); (I.J.); (F.V.)
- Institute for Health Research and Innovation (i3s), University of Porto, 4200-135 Porto, Portugal
| | - Francisco Veiga
- Univ Coimbra, Laboratory of Drug Development and Technologies, Faculty of Pharmacy, 3000-548 Coimbra, Portugal; (C.D.); (I.J.); (F.V.)
- LAQV-REQUIMTE, Laboratory of Drug Development and Technologies, Faculty of Pharmacy, University of Coimbra, 3000-548 Coimbra, Portugal
| | - Marília Dourado
- Univ Coimbra, Institute for Clinical and Biomedical Research (iCBR) Area of Environment Genetics and Oncobiology (CIMAGO), Faculty of Medicine, 3000-548 Coimbra, Portugal;
- Univ Coimbra, Center for Health Studies and Research of the University of Coimbra (CEISUC), Faculty of Medicine, 3000-548 Coimbra, Portugal
- Univ Coimbra, Center for Studies and Development of Continuous and Palliative Care (CEDCCP), Faculty of Medicine, 3000-548 Coimbra, Portugal
| | - Ana Figueiras
- Univ Coimbra, Laboratory of Drug Development and Technologies, Faculty of Pharmacy, 3000-548 Coimbra, Portugal; (C.D.); (I.J.); (F.V.)
- LAQV-REQUIMTE, Laboratory of Drug Development and Technologies, Faculty of Pharmacy, University of Coimbra, 3000-548 Coimbra, Portugal
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Jamaladdin N, Sigaud R, Kocher D, Kolodziejczak AS, Nonnenbroich LF, Ecker J, Usta D, Benzel J, Peterziel H, Pajtler KW, van Tilburg CM, Oehme I, Witt O, Milde T. Key Pharmacokinetic Parameters of 74 Pediatric Anticancer Drugs Providing Assistance in Preclinical Studies. Clin Pharmacol Ther 2023; 114:904-913. [PMID: 37441736 DOI: 10.1002/cpt.3002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 07/01/2023] [Indexed: 07/15/2023]
Abstract
Novel drug treatments for pediatric patients with cancer are urgently needed. Success of drug development in pediatric oncology has been promising, but many drugs still fail in translation from preclinical to clinical phases. To increase the translational potential, several improvements have been implemented, including the use of clinically achievable concentrations in the drug testing phase. Although pharmacokinetic (PK) parameters of numerous investigated drugs are published, a comprehensive PK overview of the most common drugs in pediatric oncology could guide preclinical trial design and improve the translatability into clinical trials. A review of the literature was conducted for PK parameters of 74 anticancer drugs, from the drug sensitivity profiling library of the INdividualized Therapy FOr Relapsed Malignancies in Childhood (INFORM) registry. PK data in the pediatric population were reported and complemented by adult parameters when no pediatric data were available. In addition, blood-brain barrier (BBB)-penetration assessment of drugs was provided by using the BBB score. Maximum plasma concentration was available for 73 (97%), area under the plasma concentration-time curve for 69 (92%), plasma protein binding for 66 (88%), plasma half-life for 57 (76%), time to maximum concentration for 54 (72%), clearance for 52 (69%), volume of distribution for 37 (49%), lowest plasma concentration reached by the drug before the next dose administration for 21 (28%), and steady-state concentration for 4 (5%) of drugs. Pediatric PK data were available for 48 (65%) drugs. We provide a comprehensive review of PK data for 74 drugs studied in pediatric oncology. This data set can serve as a reference to design experiments more closely mimicking drug PK conditions in patients, and may thereby increase the probability of successful clinical translation.
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Affiliation(s)
- Nora Jamaladdin
- Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- Clinical Cooperation Unit Pediatric Oncology, German Cancer Research Center (DKFZ) and German Consortium for Translational Cancer Research (DKTK), Heidelberg, Germany
- Faculty of Biosciences, Heidelberg University, Heidelberg, Germany
| | - Romain Sigaud
- Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- Clinical Cooperation Unit Pediatric Oncology, German Cancer Research Center (DKFZ) and German Consortium for Translational Cancer Research (DKTK), Heidelberg, Germany
| | - Daniela Kocher
- Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- Clinical Cooperation Unit Pediatric Oncology, German Cancer Research Center (DKFZ) and German Consortium for Translational Cancer Research (DKTK), Heidelberg, Germany
- Faculty of Biosciences, Heidelberg University, Heidelberg, Germany
| | - Anna S Kolodziejczak
- Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- Clinical Cooperation Unit Pediatric Oncology, German Cancer Research Center (DKFZ) and German Consortium for Translational Cancer Research (DKTK), Heidelberg, Germany
| | - Leo F Nonnenbroich
- Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- Clinical Cooperation Unit Pediatric Oncology, German Cancer Research Center (DKFZ) and German Consortium for Translational Cancer Research (DKTK), Heidelberg, Germany
- Faculty of Medicine, Heidelberg University, Heidelberg, Germany
| | - Jonas Ecker
- Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- Clinical Cooperation Unit Pediatric Oncology, German Cancer Research Center (DKFZ) and German Consortium for Translational Cancer Research (DKTK), Heidelberg, Germany
- KiTZ Clinical Trial Unit (ZIPO), Department of Pediatric Hematology and Oncology, Heidelberg University Hospital, Heidelberg, Germany
- National Center for Tumor Diseases (NCT), Heidelberg, Germany
| | - Diren Usta
- Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- Clinical Cooperation Unit Pediatric Oncology, German Cancer Research Center (DKFZ) and German Consortium for Translational Cancer Research (DKTK), Heidelberg, Germany
- KiTZ Clinical Trial Unit (ZIPO), Department of Pediatric Hematology and Oncology, Heidelberg University Hospital, Heidelberg, Germany
- National Center for Tumor Diseases (NCT), Heidelberg, Germany
| | - Julia Benzel
- Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
| | - Heike Peterziel
- Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- Clinical Cooperation Unit Pediatric Oncology, German Cancer Research Center (DKFZ) and German Consortium for Translational Cancer Research (DKTK), Heidelberg, Germany
- National Center for Tumor Diseases (NCT), Heidelberg, Germany
| | - Kristian W Pajtler
- Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- KiTZ Clinical Trial Unit (ZIPO), Department of Pediatric Hematology and Oncology, Heidelberg University Hospital, Heidelberg, Germany
- National Center for Tumor Diseases (NCT), Heidelberg, Germany
| | - Cornelis M van Tilburg
- Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- Clinical Cooperation Unit Pediatric Oncology, German Cancer Research Center (DKFZ) and German Consortium for Translational Cancer Research (DKTK), Heidelberg, Germany
- KiTZ Clinical Trial Unit (ZIPO), Department of Pediatric Hematology and Oncology, Heidelberg University Hospital, Heidelberg, Germany
- National Center for Tumor Diseases (NCT), Heidelberg, Germany
| | - Ina Oehme
- Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- Clinical Cooperation Unit Pediatric Oncology, German Cancer Research Center (DKFZ) and German Consortium for Translational Cancer Research (DKTK), Heidelberg, Germany
| | - Olaf Witt
- Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- Clinical Cooperation Unit Pediatric Oncology, German Cancer Research Center (DKFZ) and German Consortium for Translational Cancer Research (DKTK), Heidelberg, Germany
- KiTZ Clinical Trial Unit (ZIPO), Department of Pediatric Hematology and Oncology, Heidelberg University Hospital, Heidelberg, Germany
- National Center for Tumor Diseases (NCT), Heidelberg, Germany
| | - Till Milde
- Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- Clinical Cooperation Unit Pediatric Oncology, German Cancer Research Center (DKFZ) and German Consortium for Translational Cancer Research (DKTK), Heidelberg, Germany
- KiTZ Clinical Trial Unit (ZIPO), Department of Pediatric Hematology and Oncology, Heidelberg University Hospital, Heidelberg, Germany
- National Center for Tumor Diseases (NCT), Heidelberg, Germany
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Kiskaddon AL, Smith MM, Gilliland F, Rech MA. Pharmacist Avoidance or Reductions in Medical Costs in Critically and Emergently Ill Pediatrics: PHARM-PEDS Study. Crit Care Explor 2023; 5:e0980. [PMID: 37811129 PMCID: PMC10558220 DOI: 10.1097/cce.0000000000000980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/10/2023] Open
Abstract
OBJECTIVES To comprehensively classify interventions performed by pediatric critical care clinical pharmacists and quantify cost avoidance (CA) generated through their accepted interventions. DESIGN A multicenter, prospective, observational study performed between August 2018 and January 2019. SETTING Academic and community hospitals in the United States with pediatric critical care units. SUBJECTS Pediatric clinical pharmacists. INTERVENTIONS Pharmacist recommendations were classified into one of 38 total intervention categories associated with CA. MEASUREMENTS AND MAIN RESULTS Nineteen pediatric pharmacists at five centers documented 1,458 accepted interventions during 112 shifts on 861 critically ill pediatric patients. This calculated to an associated CA of $450,590. The accepted interventions and associated CA in the six established categories included as follows: adverse drug event prevention (155 interventions, $118,901 CA), resource utilization (267 interventions; $59,020), individualization of patient care (898 interventions, $217,949 CA), prophylaxis (8 interventions, $453 CA), hands-on care (30 interventions, $35,509 CA), and administrative/supportive tasks (108 interventions, $18,758 CA). The average associated CA was $309 per accepted intervention, $523 per patient day, and $4,023.13 per pediatric clinical pharmacist shift. The calculated potential annualized CA of accepted interventions from a pediatric pharmacist was $965,550, resulting in a potential monetary-associated CA-to-pharmacist salary ratio between $1.5:1 and $5.2:1. CONCLUSIONS There is potential for significant avoidance of healthcare costs when pediatric pharmacists are involved in the care of critically and emergently ill pediatric patients, with a monetary potential CA-to-pediatric pharmacist salary ratio to be between $1.5:1 and $5.2:1.
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Affiliation(s)
- Amy L Kiskaddon
- Department of Pharmacy, Johns Hopkins All Children's Hospital, St. Petersburg, FL
- Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Michelle M Smith
- Division of Critical Care Medicine, Johns Hopkins All Children's Hospital, St. Petersburg, FL
| | - Frankie Gilliland
- Division of Critical Care Medicine, Johns Hopkins All Children's Hospital, St. Petersburg, FL
| | - Megan A Rech
- Department of Veterans Affairs, Center of Innovation for Complex Chronic Healthcare, Edward Hines, Jr. VA Hospital, Hines, IL
- Department of Emergency Medicine, Loyola University Medical Center, Maywood, IL
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Goelen J, Farrell G, McGeehan J, Titman CM, J W Rattray N, Johnson TN, Horniblow RD, Batchelor HK. Quantification of drug metabolising enzymes and transporter proteins in the paediatric duodenum via LC-MS/MS proteomics using a QconCAT technique. Eur J Pharm Biopharm 2023; 191:68-77. [PMID: 37625656 DOI: 10.1016/j.ejpb.2023.08.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 08/13/2023] [Accepted: 08/18/2023] [Indexed: 08/27/2023]
Abstract
Characterising the small intestine absorptive membrane is essential to enable prediction of the systemic exposure of oral formulations. In particular, the ontogeny of key intestinal Drug Metabolising Enzymes and Transporter (DMET) proteins involved in drug disposition needs to be elucidated to allow for accurate prediction of the PK profile of drugs in the paediatric cohort. Using pinch biopsies from the paediatric duodenum (n = 36; aged 11 months to 15 years), the abundance of 21 DMET proteins and two enterocyte markers were quantified via LC-MS/MS. An established LCMS nanoflow method was translated to enable analysis on a microflow LC system, and a new stable-isotope-labelled QconCAT standard developed to enable quantification of these proteins. Villin-1 was used to standardise abundancy values. The observed abundancies and ontogeny profiles, agreed with adult LC-MS/MS-based data, and historic paediatric data obtained via western blotting. A linear trend with age was observed for duodenal CYP3A4 and CES2 only. As this work quantified peptides on a pinch biopsy coupled with a microflow method, future studies using a wider population range are very feasible. Furthermore, this DMET ontogeny data can be used to inform paediatric PBPK modelling and to enhance the understanding of oral drug absorption and gut bioavailability in paediatric populations.
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Affiliation(s)
- Jan Goelen
- School of Pharmacy, University of Birmingham, Birmingham B15 2TT, UK; Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow G4 0RE, UK
| | - Gillian Farrell
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow G4 0RE, UK
| | | | | | - Nicholas J W Rattray
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow G4 0RE, UK
| | | | - Richard D Horniblow
- School of Biomedical Science, University of Birmingham, Birmingham B15 2TT, UK
| | - Hannah K Batchelor
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow G4 0RE, UK.
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Shannon ML, Muhammad A, James NT, Williams ML, Breeyear J, Edwards T, Mosley JD, Choi L, Kannankeril P, Van Driest S. Variant-based heritability assessment of dexmedetomidine and fentanyl clearance in pediatric patients. Clin Transl Sci 2023; 16:1628-1638. [PMID: 37353859 PMCID: PMC10499425 DOI: 10.1111/cts.13574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 04/12/2023] [Accepted: 06/01/2023] [Indexed: 06/25/2023] Open
Abstract
Despite complex pathways of drug disposition, clinical pharmacogenetic predictors currently rely on only a few high effect variants. Quantification of the polygenic contribution to variability in drug disposition is necessary to prioritize target drugs for pharmacogenomic approaches and guide analytic methods. Dexmedetomidine and fentanyl, often used in postoperative care of pediatric patients, have high rates of inter-individual variability in dosing requirements. Analyzing previously generated population pharmacokinetic parameters, we used Bayesian hierarchical mixed modeling to measure narrow-sense (additive) heritability (h SNP 2 ) of dexmedetomidine and fentanyl clearance in children and identify relative contributions of small, moderate, and large effect-size variants toh SNP 2 . We used genome-wide association studies (GWAS) to identify variants contributing to variation in dexmedetomidine and fentanyl clearance, followed by functional analyses to identify associated pathways. For dexmedetomidine, median clearance was 33.0 L/h (interquartile range [IQR] 23.8-47.9 L/h) andh SNP 2 was estimated to be 0.35 (90% credible interval 0.00-0.90), with 45% ofh SNP 2 attributed to large-, 32% to moderate-, and 23% to small-effect variants. The fentanyl cohort had median clearance of 8.2 L/h (IQR 4.7-16.7 L/h), with estimatedh SNP 2 of 0.30 (90% credible interval 0.00-0.84). Large-effect variants accounted for 30% ofh SNP 2 , whereas moderate- and small-effect variants accounted for 37% and 33%, respectively. As expected, given small sample sizes, no individual variants or pathways were significantly associated with dexmedetomidine or fentanyl clearance by GWAS. We conclude that clearance of both drugs is highly polygenic, motivating the future use of polygenic risk scores to guide appropriate dosing of dexmedetomidine and fentanyl.
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Affiliation(s)
| | - Ayesha Muhammad
- School of MedicineVanderbilt UniversityNashvilleTennesseeUSA
| | - Nathan T. James
- Department of BiostatisticsVanderbilt University Medical CenterNashvilleTennesseeUSA
- Present address:
Berry Consultants, LLCAustinTexasUSA
| | - Michael L. Williams
- Department of BiostatisticsVanderbilt University Medical CenterNashvilleTennesseeUSA
- Present address:
Department of Clinical Pharmacology and Quantitative PharmacologyAstraZenecaGothenburgSweden
| | - Joseph Breeyear
- Department of MedicineVanderbilt University Medical CenterNashvilleTennesseeUSA
| | - Todd Edwards
- Department of MedicineVanderbilt University Medical CenterNashvilleTennesseeUSA
| | - Jonathan D. Mosley
- Department of MedicineVanderbilt University Medical CenterNashvilleTennesseeUSA
- Department of Biomedical InformaticsVanderbilt University Medical CenterNashvilleTennesseeUSA
| | - Leena Choi
- Department of BiostatisticsVanderbilt University Medical CenterNashvilleTennesseeUSA
| | - Prince Kannankeril
- Center for Pediatric Precision Medicine, Department of PediatricsVanderbilt University Medical CenterNashvilleTennesseeUSA
| | - Sara Van Driest
- Department of MedicineVanderbilt University Medical CenterNashvilleTennesseeUSA
- Center for Pediatric Precision Medicine, Department of PediatricsVanderbilt University Medical CenterNashvilleTennesseeUSA
- Present address:
All of Us Research ProgramNational Institutes of HealthWashingtonDCUSA
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40
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Zheng P, Mo L, Zhao B, Li L, Cen B, Xu Z, Li Y. Pharmaceutical care model in precision medicine in China. FARMACIA HOSPITALARIA 2023; 47:T218-T223. [PMID: 37598018 DOI: 10.1016/j.farma.2023.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 04/12/2023] [Accepted: 04/13/2023] [Indexed: 08/21/2023] Open
Abstract
Pharmacy service is to provide individualized pharmaceutical care for patients, which should follow the current evidence-based pharmacy, and constantly verify the evidence and then produce new evidence. In pharmaceutical care, differences are often found in the efficacy and adverse reactions of drugs among individuals, even within individuals, which are closely related to patients' genetics, liver and kidney functions, disease states, and drug interactions. Back in the 1980s, therapeutic drug monitoring (TDM) has been applied to routinely monitor the blood drug concentration of patients taking antiepileptic drugs or immunosuppressants after transplantation to provide individualized dosage recommendations and accumulate a large amount of pharmacokinetic (PK)/pharmacodynamic (PD) data. As individualized pharmaceutical care proceeds, the concept of precision medicine was introduced into pharmacy services in combination with evidence-based pharmacy, PK/PD theories, and big data to further promote the TDM technology and drugs, and carry out pharmacogenomics analysis. The TDM and pharmacogenomics have been applied gradually to the fields of antimicrobial, antitumor, and antipsychotic drugs and immunosuppressants. Based on the concept of precision pharmacy, we adopted approaches including PK/PD, quantitative pharmacology, population pharmacokinetics, and big data machine learning to provide more personalized pharmacy services, which is mainly for special patients, such as critical patients, patients with interaction risk of multiple drugs, patients with liver and renal insufficiency, pregnant women, children, and elderly patients. As the service pattern of precision pharmacy has been constructed and constantly improved, better evidence in clinical practice will be produced to provide patients with better precision pharmacy service.
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Affiliation(s)
- Ping Zheng
- Unidad de Farmacia Clínica, Hospital Nanfang, Universidad Médica del Sur, Guangzhou, China
| | - Liqian Mo
- Unidad de Farmacia Clínica, Hospital Nanfang, Universidad Médica del Sur, Guangzhou, China
| | - Boxin Zhao
- Unidad de Farmacia Clínica, Hospital Nanfang, Universidad Médica del Sur, Guangzhou, China
| | - Liren Li
- Unidad de Farmacia Clínica, Hospital Nanfang, Universidad Médica del Sur, Guangzhou, China
| | - Baihong Cen
- Unidad de Farmacia Clínica, Hospital Nanfang, Universidad Médica del Sur, Guangzhou, China
| | - Zhongyuan Xu
- Unidad de Farmacia Clínica, Hospital Nanfang, Universidad Médica del Sur, Guangzhou, China.
| | - Yilei Li
- Unidad de Farmacia Clínica, Hospital Nanfang, Universidad Médica del Sur, Guangzhou, China
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41
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Zheng P, Mo L, Zhao B, Li L, Cen B, Xu Z, Li Y. Pharmaceutical care model in precision medicine in China. FARMACIA HOSPITALARIA 2023; 47:218-223. [PMID: 37248115 DOI: 10.1016/j.farma.2023.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 04/12/2023] [Accepted: 04/13/2023] [Indexed: 05/31/2023] Open
Abstract
Pharmacy service is to provide individualized pharmaceutical care for patients, which should follow the current evidence-based pharmacy, and constantly verify the evidence and then produce new evidence. In pharmaceutical care, differences are often found in the efficacy and adverse reactions of drugs among individuals, even within individuals, which are closely related to patient's genetics, liver and kidney functions, disease states, and drug interactions. Back in the 1980s, therapeutic drug monitoring (TDM) has been applied to routinely monitor the blood drug concentration of patients taking antiepileptic drugs or immunosuppressants after transplantation to provide individualized dosage recommendations and accumulate a large amount of pharmacokinetic (PK)/pharmacodynamic (PD) data. As individualized pharmaceutical care proceeds, the concept of precision medicine was introduced into pharmacy services in combination with evidence-based pharmacy, PK/PD theories and big data to further promote the TDM technology and drugs, and carry out pharmacogenomics analysis. The TDM and pharmacogenomics have been applied gradually to the fields of antimicrobial, antitumor and antipsychotic drugs and immunosuppressants. Based on the concept of precision pharmacy, we adpoted approaches including PK/PD, quantitative pharmacology, population pharmacokinetics, and big data machine learning to provide more personalized pharmacy services, which is mainly for special patients, such as critical patients, patients with interaction risk of multiple drugs, patients with liver and renal insufficiency, pregnant women, children and elderly patients. As the service pattern of precision pharmacy has been constructed and constantly improved, better evidence in clinical practice will be produced to provide patients with better precision pharmacy service.
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Affiliation(s)
- Ping Zheng
- Clinical Pharmacy Center, Nanfang Hospital, Southern Medical University, No. 1838, Guangzhou Avenue North, Guangzhou City, Guangdong Province, China
| | - Liqian Mo
- Clinical Pharmacy Center, Nanfang Hospital, Southern Medical University, No. 1838, Guangzhou Avenue North, Guangzhou City, Guangdong Province, China
| | - Boxin Zhao
- Clinical Pharmacy Center, Nanfang Hospital, Southern Medical University, No. 1838, Guangzhou Avenue North, Guangzhou City, Guangdong Province, China
| | - Liren Li
- Clinical Pharmacy Center, Nanfang Hospital, Southern Medical University, No. 1838, Guangzhou Avenue North, Guangzhou City, Guangdong Province, China
| | - Baihong Cen
- Clinical Pharmacy Center, Nanfang Hospital, Southern Medical University, No. 1838, Guangzhou Avenue North, Guangzhou City, Guangdong Province, China
| | - Zhongyuan Xu
- Clinical Pharmacy Center, Nanfang Hospital, Southern Medical University, No. 1838, Guangzhou Avenue North, Guangzhou City, Guangdong Province, China.
| | - Yilei Li
- Clinical Pharmacy Center, Nanfang Hospital, Southern Medical University, No. 1838, Guangzhou Avenue North, Guangzhou City, Guangdong Province, China.
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42
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Nagem Lopes LP, da Cunha LG, Silva ARO, Land MGP, Fonseca AR, Lopes LC, Lima EC. Multisystem inflammatory syndrome drug treatment in countries with different income profiles: a scoping review. Front Pharmacol 2023; 14:1228986. [PMID: 37680713 PMCID: PMC10481533 DOI: 10.3389/fphar.2023.1228986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 08/08/2023] [Indexed: 09/09/2023] Open
Abstract
Objective: The purpose of this study was to map and describe the studies that have investigated therapeutic alternatives for the management of paediatric multisystem inflammatory syndrome in children (MIS-C) associated with COVID-19. Considering the origin of the studies performed (low-, middle- and high-income countries), a systematic scoping review was conducted with primary studies that reported the use of medications for the treatment of patients with MIS-C. Sources: The searches were performed in MEDLINE, Embase, Lilacs, Epistemonikos, CINAHL, and CENTRAL, in the grey literature (theses and dissertations from CAPES, ProQuest, and PROSPERO) and in clinical trial databases until May 2022. The selection and extraction of studies were performed independently by two reviewers. Summary of the findings: A total of 173 studies were included, most of which were published as case reports or series. No randomized controlled clinical trials (RCTs) were identified. The investigated drugs were immunoglobulins, glucocorticoids, monoclonal antibodies, anticoagulants, and antiplatelet agents. Conclusion: The dosages, when reported, were heterogeneous among the studies. The ethnicity and comorbidity of the participants were poorly reported. Monoclonal antibodies, drugs with higher costs, were mostly described in studies of high-income countries.
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Affiliation(s)
| | | | | | | | - Adriana Rodrigues Fonseca
- Post-Graduate Program in Saúde Materno Infantil, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Luciane Cruz Lopes
- Post-Graduate Program in Pharmaceutical Sciences, University of Sorocaba, São Paulo, Brazil
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43
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Kohn E, Lezinger M, Daniel S, Masarwi M, Brandriss N, Bar-Chaim A, Berkovitch M, Heyman E, Komargodski R. Therapeutic drug monitoring of lacosamide among children: is it helpful? Front Pharmacol 2023; 14:1164902. [PMID: 37484012 PMCID: PMC10359424 DOI: 10.3389/fphar.2023.1164902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 06/08/2023] [Indexed: 07/25/2023] Open
Abstract
Objective: This study aimed to investigate the efficacy and tolerability of Lacosamide (LCM) in a pediatric population with epilepsy using LCM serum concentration and its correlation to the age of the participants and the dosage of the drug. Methods: Demographic and clinical data were collected from the medical records of children with epilepsy treated with LCM at Shamir Medical Center between February 2019 to September 2021, in whom medication blood levels were measured. Trough serum LCM concentration was measured in the biochemical laboratory using High-Performance Liquid Chromatography (HPLC) and correlated with the administered weight-based medication dosing and clinical report. Results: Forty-two children aged 10.43 ± 5.13 years (range: 1-18) were included in the study. The average daily dose of LCM was 306.62 ± 133.20 mg (range: 100-600). The average number of seizures per day was 3.53 ± 7.25 compared to 0.87 ± 1.40 before and after LCM treatment, respectively. The mean LCM serum concentration was 6.74 ± 3.27 mg/L. No statistically significant association was found between LCM serum levels and the clinical response (p = 0.58), as well as the correlation between LCM dosage and the change in seizure rate (p = 0.30). Our study did not find a correlation between LCM serum concentration and LCM dosage and the gender of the participants: males (n = 17) females (n = 23) (p = 0.31 and p = 0.94, respectively). A positive trend was found between age and LCM serum concentrations (r = 0.26, p = 0.09). Conclusion: Based on the data that has been obtained from our study, it appears that therapeutic drug monitoring for LCM may not be necessary. Nonetheless, further research in this area is needed in the light of the relatively small sample size of the study.
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Affiliation(s)
- Elkana Kohn
- Clinical Pharmacology and Toxicology Unit, Shamir Medical Center (Assaf Harofeh), Zerifin, Israel
| | - Mirit Lezinger
- Pediatric Neurology Department, Shamir Medical Center (Assaf Harofeh), Zerifin, Israel
| | - Sharon Daniel
- Department of Public Health and Pediatrics, Ben-Gurion University of the Negev and Clalit Health Services, Beer-Sheva, Israel
| | - Majdi Masarwi
- Pharmacy Services, Shamir Medical Center (Assaf Harofeh), Zerifin, Israel
| | - Nurit Brandriss
- Laboratories Department, Biochemistry Lab, Shamir Medical Center (Assaf Harofeh), Zerifin, Israel
| | - Adina Bar-Chaim
- Laboratories Department, Biochemistry Lab, Shamir Medical Center (Assaf Harofeh), Zerifin, Israel
| | - Matitiahu Berkovitch
- Clinical Pharmacology and Toxicology Unit, Shamir Medical Center (Assaf Harofeh), Zerifin and Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Eli Heyman
- Pediatric Neurology Department, Shamir Medical Center (Assaf Harofeh), Zerifin, Israel
| | - Rinat Komargodski
- Pharmacy Services, Shamir Medical Center (Assaf Harofeh), School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
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Müller J, Egyed P, Erdelyi D, Kovacs K, Mudra K, Szabo S, Egyed B, Gabor K. Our Experiences with Asparaginase Activity Measurements in Children with Lymphoblastic Diseases. CHILDREN (BASEL, SWITZERLAND) 2023; 10:1160. [PMID: 37508657 PMCID: PMC10378469 DOI: 10.3390/children10071160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 06/25/2023] [Accepted: 06/27/2023] [Indexed: 07/30/2023]
Abstract
BACKGROUND Asparaginase is a key component of chemotherapy protocols for the treatment of lymphoblastic malignancies among children. Adequate asparagine depletion is an important factor to achieve optimal therapeutic outcomes. METHODS Over a 3.5 year period, 106 patients were monitored for asparaginase activity (329 samples) in a single center of the Hungarian Pediatric Oncology-Hematology Group. In Hungary, three asparaginase products are available: native E. coli ASNase (Kidrolase), a pegylated form of this enzyme (Pegaspargase) and another native product from Erwinia chrysanthemi (Erwinase). A retrospective data analysis was performed. RESULTS In 81% (268/329) of our patients, AEA levels were in the optimal therapeutic range of over 100 IU/L. Of 106 patients, 13 (12%) were diagnosed with 'silent inactivation'. CONCLUSIONS Monitoring of AEA can help to identify patients with 'silent inactivation' and their asparaginase therapy can thus be optimized.
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Affiliation(s)
- Judit Müller
- 2nd Department of Pediatrics, Semmelweis University, 1094 Budapest, Hungary
| | - Petra Egyed
- County Hospital Fejer, Szent Gyorgy Hospital, 8000 Szekesfehervar, Hungary
| | - Daniel Erdelyi
- 2nd Department of Pediatrics, Semmelweis University, 1094 Budapest, Hungary
| | - Krisztian Kovacs
- Department of Laboratory Medicine, Semmelweis University, 1089 Budapest, Hungary
| | - Katalin Mudra
- 2nd Department of Pediatrics, Semmelweis University, 1094 Budapest, Hungary
| | - Sandor Szabo
- 2nd Department of Pediatrics, Semmelweis University, 1094 Budapest, Hungary
| | - Balint Egyed
- 2nd Department of Pediatrics, Semmelweis University, 1094 Budapest, Hungary
| | - Kovacs Gabor
- 2nd Department of Pediatrics, Semmelweis University, 1094 Budapest, Hungary
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Dos Santos Neres JS, Yahouédéhou SCMA, Goncalves MS. Effectiveness of Pharmacokinetic-Guided Hydroxyurea Dose Individualization in Patients with Sickle Cell Anemia: A Mini-Review. Pharmaceuticals (Basel) 2023; 16:857. [PMID: 37375804 DOI: 10.3390/ph16060857] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 05/29/2023] [Accepted: 05/30/2023] [Indexed: 06/29/2023] Open
Abstract
Inconsistent therapeutic responses have been observed among patients with sickle cell anemia (SCA) undergoing hydroxyurea (HU) following the adoption of the standardized protocol. Moreover, this treatment regimen necessitates a prolonged period to reach the maximum tolerated dose in which beneficial therapeutic effects are observed in most SCA patients. To overcome this limitation, several studies have performed HU dose adjustments in SCA patients based on individualized pharmacokinetic profiles. The present systematic mini-review aims to select and analyze published data to present an overview of HU pharmacokinetics studies performed in SCA patients, as well as evaluate the effectiveness of the dose adjustment strategy. A systematic search was performed in the Embase, Pubmed, Scopus, Web of Science, Scielo, Google Scholar, and the Virtual Library of Health databases from December 2020 to August 2022, with a total of five studies included. Inclusion criteria consisted of studies in which the dose adjustment was performed in SCA patients based on pharmacokinetic parameters. Quality analyzes were performed using QAT, while data synthesis was performed according to the Cochrane Manual of Systematic Reviews of Interventions. Analysis of the selected studies revealed improved HU treatment effectiveness using personalized dosages in SCA patients. Moreover, several laboratory parameters were utilized as biomarkers of the HU response, and methods designed to simplify the adoption of this practice were presented. Despite the scarcity of studies on this topic, HU-personalized treatment based on individualized pharmacokinetic profiles represents a viable alternative for SCA patients who are candidates for HU therapy, especially for pediatric patients. Registration number: PROSPERO CRD42022344512.
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Affiliation(s)
- Joelma Santana Dos Santos Neres
- Laboratório de Investigação em Genética e Hematologia Translacional, Instituto Gonçalo Moniz, Fiocruz-BA, Salvador 40296-710, Brazil
| | - Sètondji Cocou Modeste Alexandre Yahouédéhou
- Laboratório de Investigação em Genética e Hematologia Translacional, Instituto Gonçalo Moniz, Fiocruz-BA, Salvador 40296-710, Brazil
- Laboratório de Pesquisas em Anemia, Faculdade de Farmácia, Universidade Federal da Bahia, Salvador 40170-110, Brazil
| | - Marilda Souza Goncalves
- Laboratório de Investigação em Genética e Hematologia Translacional, Instituto Gonçalo Moniz, Fiocruz-BA, Salvador 40296-710, Brazil
- Laboratório de Pesquisas em Anemia, Faculdade de Farmácia, Universidade Federal da Bahia, Salvador 40170-110, Brazil
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Raina M, Ashraf A, Soundararajan A, Mandal AK, Sethi SK. Pharmacokinetics in Critically Ill Children with Acute Kidney Injury. Paediatr Drugs 2023:10.1007/s40272-023-00572-z. [PMID: 37266815 DOI: 10.1007/s40272-023-00572-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/12/2023] [Indexed: 06/03/2023]
Abstract
Acute kidney injury (AKI) is a commonly encountered comorbidity in critically ill children. The coexistence of AKI disturbs drug pharmacokinetics and pharmacodynamics, leading to clinically significant consequences. This can complicate an already critical clinical scenario by causing potential underdosing or overdosing giving way to possible therapeutic failures and adverse reactions. Current available studies offer little guidance to help maneuver such complex dosing regimens and decision-making in pediatric patients as most of them are done on heterogeneous groups of adult populations. Though there are some studies on drug dosing during continuous renal replacement therapy (CRRT), their utility is in question because of the recent advances in CRRT technology. Our review aims to discuss the principles of pharmacokinetics pertinent for honing the existing practices of drug dosing in critically ill children with AKI, and the various complexities and intricate challenges involved. This in turn will provide a framework to help enable caretakers to tailor dosing regimens in complex clinical setups with further ease and precision.
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Affiliation(s)
| | - Amani Ashraf
- Northeast Ohio Medical University, Rootstown, OH, USA
| | - Anvitha Soundararajan
- Akron Nephrology Associates/Cleveland Clinic Akron General Medical Center, Akron, OH, USA
| | | | - Sidharth Kumar Sethi
- Pediatric Nephrology, Kidney Institute, Medanta, The Medicity Hospital, Gurgaon, Haryana, 122001, India.
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Huynh DTM, Hai HT, Hau NM, Lan HK, Vinh TP, Tran VD, Pham DT. Preparations and characterizations of effervescent granules containing azithromycin solid dispersion for children and elder: Solubility enhancement, taste-masking, and digestive acidic protection. Heliyon 2023; 9:e16592. [PMID: 37292293 PMCID: PMC10245243 DOI: 10.1016/j.heliyon.2023.e16592] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 05/17/2023] [Accepted: 05/22/2023] [Indexed: 06/10/2023] Open
Abstract
Azithromycin, a macrolide antibiotics, is one of the frequently used drugs in the children and elder. However, due to these population difficulty in swallowing and inefficient absorption, and azithromycin inherent poor solubility, bitter taste, and instability in the stomach acidic condition, it is a challenge to reach high oral bioavailability of this drug. To overcome these issues, we developed and characterized the effervescent granules containing azithromycin solid dispersion. Firstly, the solid dispersion was prepared, employing both wet grinding and solvent evaporation methods, with different types/amounts of polymers. The optimal solid dispersion with β-cyclodextrin at a drug:polymer ratio of 1:2 (w/w), prepared by the solvent evaporation method, significantly enhanced the azithromycin solubility 4-fold compared to the free drug, improved its bitterness from "bitter" to "normal", possessed intermolecular bonding between the drug and polymer, and transformed the azithromycin molecules from crystalline to amorphous state. Secondly, the effervescent granules incorporating the solid dispersion were formulated with varied excipients of sweeteners, gas-generators, pH modulators, and glidants/lubricants. The optimal formula satisfied all the properties stated in the Vietnamese Pharmacopoeia. In summary, the final effervescent granules product could be further investigated in in-vivo and in clinical settings to become a potential azithromycin delivery system with high bioavailability for the children and elder.
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Affiliation(s)
- Duyen Thi My Huynh
- Department of Pharmaceutical and Pharmaceutical Technology, Faculty of Pharmacy, Can Tho University of Medicine and Pharmacy, Can Tho, 900000, Viet Nam
| | - Huynh Thien Hai
- Faculty of Pharmacy, Can Tho University of Medicine and Pharmacy, Can Tho, 900000, Viet Nam
| | - Nguyen Minh Hau
- Faculty of Pharmacy, Can Tho University of Medicine and Pharmacy, Can Tho, 900000, Viet Nam
| | - Huynh Kim Lan
- Faculty of Pharmacy, Can Tho University of Medicine and Pharmacy, Can Tho, 900000, Viet Nam
| | - Truong Phu Vinh
- Faculty of Pharmacy, Can Tho University of Medicine and Pharmacy, Can Tho, 900000, Viet Nam
| | - Van De Tran
- Department of Health Organization and Management, Can Tho University of Medicine and Pharmacy, Can Tho, 900000, Viet Nam
| | - Duy Toan Pham
- Department of Chemistry, College of Natural Sciences, Can Tho University, Can Tho, 900000, Viet Nam
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48
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Luo W, Deng J, He J, Yin L, You R, Zhang L, Shen J, Han Z, Xie F, He J, Guan Y. Integration of molecular docking, molecular dynamics and network pharmacology to explore the multi-target pharmacology of fenugreek against diabetes. J Cell Mol Med 2023. [PMID: 37257051 DOI: 10.1111/jcmm.17787] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 04/15/2023] [Accepted: 05/13/2023] [Indexed: 06/02/2023] Open
Abstract
Fenugreek is an ancient herb that has been used for centuries to treat diabetes. However, how the fenugreek-derived chemical compounds work in treating diabetes remains unclarified. Herein, we integrate molecular docking and network pharmacology to elucidate the active constituents and potential mechanisms of fenugreek against diabetes. First, 19 active compounds from fenugreek and 71 key diabetes-related targets were identified through network pharmacology analysis. Then, molecular docking and simulations results suggest diosgenin, luteolin and quercetin against diabetes via regulation of the genes ESR1, CAV1, VEGFA, TP53, CAT, AKT1, IL6 and IL1. These compounds and genes may be key factors of fenugreek in treating diabetes. Cells results demonstrate that fenugreek has good biological safety and can effectively improve the glucose consumption of IR-HepG2 cells. Pathway enrichment analysis revealed that the anti-diabetic effect of fenugreek was regulated by the AGE-RAGE and NF-κB signalling pathways. It is mainly associated with anti-oxidative stress, anti-inflammatory response and β-cell protection. Our study identified the active constituents and potential signalling pathways involved in the anti-diabetic effect of fenugreek. These findings provide a theoretical basis for understanding the mechanism of the anti-diabetic effect of fenugreek. Finally, this study may help for developing anti-diabetic dietary supplements or drugs based on fenugreek.
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Affiliation(s)
- Wenfeng Luo
- School of Life Science, South China Normal University, Guangzhou, China
- South China Normal University-Panyu Central Hospital Joint Laboratory of Translational Medical Research, Panyu Central Hospital, Guangzhou, China
- Medical Imaging Institute of Panyu, Guangzhou, China
| | - Jie Deng
- Shunde Polytecnic, Foshan, China
| | - Jiecheng He
- School of Life Science, South China Normal University, Guangzhou, China
- South China Normal University-Panyu Central Hospital Joint Laboratory of Translational Medical Research, Panyu Central Hospital, Guangzhou, China
| | - Liang Yin
- School of Life Science, South China Normal University, Guangzhou, China
| | - Rong You
- School of Life Science, South China Normal University, Guangzhou, China
| | - Lingkun Zhang
- School of Life Science, South China Normal University, Guangzhou, China
| | - Jian Shen
- South China Normal University-Panyu Central Hospital Joint Laboratory of Translational Medical Research, Panyu Central Hospital, Guangzhou, China
| | - Zeping Han
- South China Normal University-Panyu Central Hospital Joint Laboratory of Translational Medical Research, Panyu Central Hospital, Guangzhou, China
| | - Fangmei Xie
- South China Normal University-Panyu Central Hospital Joint Laboratory of Translational Medical Research, Panyu Central Hospital, Guangzhou, China
| | - Jinhua He
- South China Normal University-Panyu Central Hospital Joint Laboratory of Translational Medical Research, Panyu Central Hospital, Guangzhou, China
| | - Yanqing Guan
- School of Life Science, South China Normal University, Guangzhou, China
- South China Normal University-Panyu Central Hospital Joint Laboratory of Translational Medical Research, Panyu Central Hospital, Guangzhou, China
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49
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Job KM, Roberts JK, Sherwin CM. Editorial: Methods and protocols in obstetric and pediatric pharmacology: 2022. Front Pharmacol 2023; 14:1205963. [PMID: 37251317 PMCID: PMC10213959 DOI: 10.3389/fphar.2023.1205963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Accepted: 04/21/2023] [Indexed: 05/31/2023] Open
Affiliation(s)
- Kathleen M Job
- Division of Clinical Pharmacology, Department of Pediatrics, School of Medicine, The University of Utah, Salt Lake City, UT, United States
| | - Jessica K Roberts
- Simulations Plus, Inc., Cognigen Division, Lancaster, CA, United States
| | - Catherine M Sherwin
- Department of Pediatrics, Boonshoft School of Medicine, Wright State University, Dayton, OH, United States
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50
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de Waal T, Brouwers J, Mols R, Hoffman I, Rayyan M, Augustijns P. Characterization of neonatal and infant enterostomy fluids. Int J Pharm 2023; 639:122943. [PMID: 37059240 DOI: 10.1016/j.ijpharm.2023.122943] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 04/05/2023] [Accepted: 04/07/2023] [Indexed: 04/16/2023]
Abstract
The composition of gastrointestinal (GI) fluids is crucial for the dissolution, solubilization, and absorption of orally administered drugs. Disease- or age-related changes in GI fluid composition could significantly affect the pharmacokinetics of oral drugs. However, limited studies have been conducted on the characteristics of GI fluids in neonates and infants due to practical and ethical challenges. The current study collected enterostomy fluids from 21 neonate and infant patients over an extended period of time and from different regions of the small intestine and colon. The fluids were characterized for pH, buffer capacity, osmolality, total protein, bile salts, phospholipids, cholesterol, and lipid digestion products. The study found a large variability in the fluid characteristics among the different patients, in line with the highly heterogeneous study population. Compared to adult intestinal fluids, the enterostomy fluids from neonates and infants had low bile salt concentrations, with an increasing trend as a function of age; no secondary bile salts were detected. In contrast, total protein and lipid concentrations were relatively high, even in the distal small intestine. These findings suggest marked differences in intestinal fluid composition between neonates and infants versus adults, which may affect the absorption of certain drugs.
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Affiliation(s)
- Tom de Waal
- Drug Delivery and Disposition, KU Leuven, Leuven, Belgium
| | | | - Raf Mols
- Drug Delivery and Disposition, KU Leuven, Leuven, Belgium
| | - Ilse Hoffman
- Paediatric Gastroenterology. Hepatology and Nutrition, University Hospitals Leuven, Leuven, Belgium
| | - Maissa Rayyan
- Neonatal Intensive Care Unit, University Hospitals Leuven, Leuven, Belgium
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