1
|
Correia P, Launay M, Balluet R, Gergele L, Gauthier V, Morel J, Beuret P, Mariat C, Thiery G, Perinel Ragey S. Towards optimization of ceftazidime dosing in obese ICU patients: the end of the 'one-size-fits-all' approach? J Antimicrob Chemother 2023; 78:2968-2975. [PMID: 37919244 DOI: 10.1093/jac/dkad339] [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: 03/22/2023] [Accepted: 10/12/2023] [Indexed: 11/04/2023] Open
Abstract
BACKGROUND Ceftazidime is commonly used as a key antibiotic against Pseudomonas aeruginosa in critically ill patients. ICU patients have severely altered and variable antibiotic pharmacokinetics, resulting in lower antimicrobial concentrations and potentially poor outcome. Several factors, including obesity and renal function, may influence pharmacokinetics. Thus, the objective of the study was to evaluate the impact of obesity and renal function on ceftazidime plasma concentrations and dosing regimen in ICU patients. METHODS All consecutive adult patients from six ICUs, treated with continuous ceftazidime infusion and under therapeutic drug monitoring evaluation, were included. Obesity was defined as BMI ≥30 kg/m². Glomerular filtration rate (GFR) was estimated by the Chronic Kidney Disease Epidemiology Collaboration formula. The ceftazidime recommended target for plasma concentrations was between 35 and 80 mg/L. RESULTS A total of 98 patients (45 obese), with an average weight of 90 (±25) kg, were included. Mean GFR was 84.1 (±40.4) mL/min/1.73 m2. Recommended ceftazidime plasma concentrations were achieved for only 48.0% of patients, with median dosing regimen of 6 g/day. Obese patients had lower ceftazidime plasma concentrations compared with non-obese patients (37.8 versus 56.3 mg/L; P = 0.0042) despite similar dosing regimens (5.83 g/day versus 5.52 g/day, P = 0.2529). Almost all augmented renal clearance patients were underdosed despite ceftazidime dosing of 6.6 (±0.8) g/day. Weight-based ceftazidime dosing seemed to attenuate such obesity-related discrepancies, regardless of GFR. CONCLUSIONS Obese ICU patients required significantly greater ceftazidime doses to achieve the target range. A tailored dosing regimen may be considered based on weight and GFR. Future prospective studies should be performed to confirm this individualized dosing approach.
Collapse
Affiliation(s)
- Patricia Correia
- Service de Médecine Intensive et Réanimation G, CHU de Saint-Etienne, Saint Etienne, France
| | - Manon Launay
- Laboratoire de Biologie-Pathologie, CHU de Saint-Etienne, Saint Etienne, France
| | - Rémi Balluet
- Laboratoire de Pharmacologie-Toxicologie-Gaz du Sang, CHU de Saint-Etienne, Avenue Albert Raymond, 42270 Saint Priest en Jarez, Saint Etienne, France
| | - Laurent Gergele
- Service de Réanimation Polyvalente, Hôpital Privé de la Loire, Saint Etienne, France
| | - Vincent Gauthier
- Service de Réanimation Polyvalente, Clinique Mutualiste, Saint Etienne, France
| | - Jérome Morel
- Service de Réanimation Polyvalente B, CHU de Saint Etienne, Saint Etienne, France
| | - Pascal Beuret
- Service de Réanimation, CHR de Roanne, Roanne, France
| | - Christophe Mariat
- Service de Réanimation Néphrologique, CHU de Saint Etienne, Saint Etienne, France
| | - Guillaume Thiery
- Service de Médecine Intensive et Réanimation G, CHU de Saint-Etienne, Saint Etienne, France
- Research on Healthcare Performance RESHAPE, INSERM U1290, Université Claude Bernard Lyon, Villeurbanne, France
| | - Sophie Perinel Ragey
- Service de Médecine Intensive et Réanimation G, CHU de Saint-Etienne, Saint Etienne, France
- SAINBIOSE U1059 Research Unit, Université Jean Monnet, INSERM, Saint-Etienne, France
| |
Collapse
|
2
|
LeVee A, Mortimer J. The Challenges of Treating Patients with Breast Cancer and Obesity. Cancers (Basel) 2023; 15:cancers15092526. [PMID: 37173991 PMCID: PMC10177120 DOI: 10.3390/cancers15092526] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 04/23/2023] [Accepted: 04/26/2023] [Indexed: 05/15/2023] Open
Abstract
Obesity is defined as a body mass index (BMI) of 30 kg/m2 or more and is associated with worse outcomes in patients with breast cancer, resulting in an increased incidence of breast cancer, recurrence, and death. The incidence of obesity is increasing, with almost half of all individuals in the United States classified as obese. Patients with obesity present with unique pharmacokinetics and physiology and are at increased risk of developing diabetes mellitus and cardiovascular disease, which leads to specific challenges when treating these patients. The aim of this review is to summarize the impact of obesity on the efficacy and toxicity of systemic therapies used for breast cancer patients, describe the molecular mechanisms through which obesity can affect systemic therapies, outline the existing American Society of Clinical Oncology (ASCO) guidelines for treating patients with cancer and obesity, and highlight additional clinical considerations for treating patients with obesity and breast cancer. We conclude that further research on the biological mechanisms underlying the obesity-breast cancer link may offer new treatment strategies, and clinicals trials that focus on the treatment and outcomes of patients with obesity and all stages of breast cancer are needed to inform future treatment guidelines.
Collapse
Affiliation(s)
- Alexis LeVee
- Department of Medical Oncology, City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA
| | - Joanne Mortimer
- Department of Medical Oncology, City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA
| |
Collapse
|
3
|
Hejal R, Popa A, Rangel ML, Remy KE. What's New in Critical Illness and Injury Science? Weighing the evidence for dexmedetomidine dosing in critically ill patients with obesity. Int J Crit Illn Inj Sci 2023; 13:45-47. [PMID: 37547191 PMCID: PMC10401556 DOI: 10.4103/ijciis.ijciis_25_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 06/11/2023] [Accepted: 06/12/2023] [Indexed: 08/08/2023] Open
Affiliation(s)
- Rana Hejal
- Department of Medicine, Case Western Reserve University School of Medicine, University Hospitals of Cleveland, Ohio, USA
| | - Andrea Popa
- Department of Medicine, Case Western Reserve University School of Medicine, University Hospitals of Cleveland, Ohio, USA
- Department of Pharmacy, University Hospitals Cleveland Medical Center, Cleveland, Ohio, USA
| | - Maribel Llamas Rangel
- Department of Pharmacy, University Hospitals Cleveland Medical Center, Cleveland, Ohio, USA
| | - Kenneth E. Remy
- Department of Medicine, Case Western Reserve University School of Medicine, University Hospitals of Cleveland, Ohio, USA
| |
Collapse
|
4
|
Mondleki E, Banda CG, Chandiwana NC, Sokhela S, Wiesner L, Venter F, Maartens G, Sinxadi PZ. Effect of obesity on dolutegravir exposure in Black Southern African adults living with HIV. South Afr J HIV Med 2022; 23:1452. [PMID: 36751628 PMCID: PMC9772744 DOI: 10.4102/sajhivmed.v23i1.1452] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 10/31/2022] [Indexed: 12/23/2022] Open
Abstract
Background Dolutegravir, a component of the preferred first-line antiretroviral therapy regimen, has been associated with increased weight gain. South Africa has a high prevalence of obesity, especially among women. Understanding dolutegravir exposure in patients with obesity is important for dose optimisation. Objectives We compared the pharmacokinetic parameters of dolutegravir in Southern African adults living with HIV with and without obesity. Method Blood samples were collected at various time points over a 24 h-period for dolutegravir assays. Non-compartmental analysis was conducted and geometric mean ratios (GMRs), with 90% confidence intervals (CIs), were generated to compare dolutegravir pharmacokinetic parameters between the groups. Regression analyses to assess predictors of dolutegravir exposure were done. Results Forty participants were enrolled, 26 were women and 10 had obesity. Dolutegravir area under the concentration-time curve to 24-h and the maximum concentrations were not statistically significantly lower in participants with obesity: GMR 0.91 (90% CI: 0.71-1.16) and GMR 0.86 (90% CI: 0.68-1.07), respectively. In a multivariate linear regression analysis adjusting for age, gender, body mass index, creatinine clearance and randomisation arm (tenofovir alafenamide or tenofovir disoproxil fumarate), a unit increase in body mass index was associated with 1.2% lower dolutegravir area under the concentration-time curve to 24-h (P = 0.035). Conclusion Dolutegravir exposure was marginally lower in participants with obesity, but this is not clinically significant. Our findings suggest that there is no need to dose adjust dolutegravir in people with obesity.
Collapse
Affiliation(s)
- Enkosi Mondleki
- Division of Clinical Pharmacology, Department of Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Clifford G. Banda
- Division of Clinical Pharmacology, Department of Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa,Malawi-Liverpool-Wellcome Trust Clinical Research Programme, Blantyre, Malawi
| | | | - Simiso Sokhela
- Ezintsha, University of the Witwatersrand, Johannesburg, South Africa
| | - Lubbe Wiesner
- Division of Clinical Pharmacology, Department of Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Francois Venter
- Ezintsha, University of the Witwatersrand, Johannesburg, South Africa
| | - Gary Maartens
- Division of Clinical Pharmacology, Department of Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa,Wellcome Centre for Infectious Diseases Research in Africa, Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, South Africa
| | - Phumla Z. Sinxadi
- Division of Clinical Pharmacology, Department of Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa,Wellcome Centre for Infectious Diseases Research in Africa, Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, South Africa
| |
Collapse
|
5
|
Strategy for Calculating Magnesium Sulfate Dose in Obese Patients: A Randomized Blinded Trial. Anesthesiol Res Pract 2022; 2022:8424670. [DOI: 10.1155/2022/8424670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 10/14/2022] [Accepted: 10/22/2022] [Indexed: 11/09/2022] Open
Abstract
Background. Magnesium sulfate has analgesic properties during the postoperative period. However, there is a knowledge gap in pharmacology related to the use of the real, ideal, or corrected ideal body weight to calculate its dose in obese patients. This trial compared postoperative analgesia using actual and corrected ideal body weight. Methods. Seventy-five obese patients scheduled to undergo laparoscopic gastroplasty or cholecystectomy under general anesthesia were randomly assigned to three groups. The patients in the control group did not receive magnesium sulfate; the other two groups received magnesium sulfate at 40 mg·kg−1 of actual body weight or corrected ideal body weight. Results. In patients with body mass index >30 mg·kg−2 (mean body mass index ranging from 32.964 kg·m−2 to 33.985 kg·m−2, according to the groups) scheduled for video laparoscopic cholecystectomy, there were no differences in the blood magnesium concentrations in the groups receiving magnesium sulfate throughout the study, regardless of whether the strategy to calculate its dose was based on total or corrected ideal body weight. Patients in the groups receiving magnesium sulfate showed a significant reduction in morphine consumption (
) and pain scores (
) in the postoperative period compared to those in the control group. There were no significant differences in morphine consumption (
) or pain scores (
) between the two groups receiving magnesium sulfate. There were no differences in the total duration of neuromuscular block induced by cisatracurium among the three groups (
). Conclusions. Magnesium sulfate decreased postoperative pain and morphine consumption without affecting the recovery time of cisatracurium in obese patients undergoing laparoscopic cholecystectomy. Strategies to calculate the dose based on the actual or corrected ideal body weight had similar outcomes related to analgesia and the resulting blood magnesium concentration. However, as the sample in this trial presented body mass indices ranging from 30.11 kg·m−2 to 47.11 kg/m−2, further studies are needed to confirm these findings in more obese patients, easily found in centers specialized.
Collapse
|
6
|
Gorham J, Taccone FS, Hites M. Ensuring target concentrations of antibiotics in critically ill patients through dose adjustment. Expert Opin Drug Metab Toxicol 2022; 18:177-187. [PMID: 35311440 DOI: 10.1080/17425255.2022.2056012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
INTRODUCTION Antibiotics are commonly prescribed in critical care, and given the large variability of pharmacokinetic (PK) parameters in these patients, drug PK frequently varies during therapy with the risk of either treatment failure or toxicity. Therefore, adequate antibiotic dosing in critically ill patients is very important. AREAS COVERED This review provides an overview of the basic principles of PK and pharmacodynamics of antibiotics and the main patient and pathogen characteristics that may affect the dosage of antibiotics and different approaches to adjust doses. EXPERT OPINION Dose adjustment should be done for aminoglycosides and glycopeptides based on daily drug concentration monitoring. For glycopeptides, in particular vancomycin, the residual concentration (Cres) should be assessed daily. For beta-lactam antibiotics, a loading dose should be administered, followed by three different possible approaches, as TDM is rarely available in most centers: 1) antibiotic regimens should be adapted according to renal function and other risk factors; 2) nomograms or software can be used to calculate daily dosing; 3) TDM should be performed 24-48 h after the initiation of treatment; however, the results are required within 24 hours to appropriately adjust dosage regimens. Drug dosing should be reduced or increased according to the TDM results.
Collapse
Affiliation(s)
- Julie Gorham
- Department of intensive care, Erasme Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - Fabio Silvio Taccone
- Department of intensive care, Erasme Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - Maya Hites
- Clinic of Infectious diseases, Erasme Hospital, Université Libre de Bruxelles, Brussels, Belgium
| |
Collapse
|
7
|
van Nuland M, Ververs TF, Lam MGEH. Dosing Therapeutic Radiopharmaceuticals in Obese Patients. Int J Mol Sci 2022; 23:ijms23020818. [PMID: 35055005 PMCID: PMC8775906 DOI: 10.3390/ijms23020818] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 01/09/2022] [Accepted: 01/11/2022] [Indexed: 02/07/2023] Open
Abstract
The prevalence of obesity has increased dramatically in the Western population. Obesity is known to influence not only the proportion of adipose tissue but also physiological processes that could alter drug pharmacokinetics. Yet, there are no specific dosing recommendations for radiopharmaceuticals in this patient population. This could potentially lead to underdosing and thus suboptimal treatment in obese patients, while it could also lead to drug toxicity due to high levels of radioactivity. In this review, relevant literature is summarized on radiopharmaceutical dosing and pharmacokinetic properties, and we aimed to translate these data into practical guidelines for dosing of radiopharmaceuticals in obese patients. For radium-223, dosing in obese patients is well established. Furthermore, for samarium-153-ethylenediaminetetramethylene (EDTMP), dose-escalation studies show that the maximum tolerated dose will probably not be reached in obese patients when dosing on MBq/kg. On the other hand, there is insufficient evidence to support dose recommendations in obese patients for rhenium-168-hydroxyethylidene diphosphonate (HEDP), sodium iodide-131, iodide 131-metaiodobenzylguanidine (MIBG), lutetium-177-dotatate, and lutetium-177-prostate-specific membrane antigen (PSMA). From a pharmacokinetic perspective, fixed dosing may be appropriate for these drugs. More research into obese patient populations is needed, especially in the light of increasing prevalence of obesity worldwide.
Collapse
Affiliation(s)
- Merel van Nuland
- Department of Clinical Pharmacy, University Medical Center Utrecht, Heidelberglaan 100, 3584 CX Utrecht, The Netherlands; (M.v.N.); (T.F.V.)
| | - Tessa F. Ververs
- Department of Clinical Pharmacy, University Medical Center Utrecht, Heidelberglaan 100, 3584 CX Utrecht, The Netherlands; (M.v.N.); (T.F.V.)
- Department of Radiology and Nuclear Medicine, University Medical Center Utrecht, Heidelberglaan 100, 3584 CX Utrecht, The Netherlands
| | - Marnix G. E. H. Lam
- Department of Radiology and Nuclear Medicine, University Medical Center Utrecht, Heidelberglaan 100, 3584 CX Utrecht, The Netherlands
- Correspondence:
| |
Collapse
|
8
|
Wang P, Zhang Q, Feng M, Sun T, Yang J, Zhang X. Population Pharmacokinetics of Polymyxin B in Obese Patients for Resistant Gram-Negative Infections. Front Pharmacol 2021; 12:754844. [PMID: 34880755 PMCID: PMC8645997 DOI: 10.3389/fphar.2021.754844] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 11/08/2021] [Indexed: 01/31/2023] Open
Abstract
Polymyxin B is an effective but potentially nephrotoxic antibiotic that is commonly used to treat resistant Gram-negative infections. As a weight-based dosing drug, obese patients may be at a high risk of nephrotoxicity. However, the pharmacokinetics and dosing recommendations for this population are currently lacking. This study aimed to describe the polymyxin B population pharmacokinetics and to evaluate pharmacokinetic/pharmacodynamics (PK/PD) target attainment for obese patients. This study included 26 patients (body mass index, BMI >30) who received polymyxin B for ≥3 days. The total body weight (TBW) ranged from 75 to 125 kg, and the BMI ranged from 30.04 to 40.35. A two-compartment model adequately described the data using Phoenix NLME software. Monte Carlo simulation was used to assess polymyxin B exposure and the probability of target attainment (PTA). As a result, body weight had no significant effect on polymyxin B pharmacokinetics. According to model-based simulation, adjusted body weight (ABW)-based regimens had a high probability of achieving optimal exposure with minimal toxicity risk by comparing TBW and ideal body weight (IBW)-based regimens. The fixed dose of 125 mg or 150 mg q12h had a high toxicity risk. PTA results showed that TBW, IBW, and ABW-based regimens had similar PTA values. Therefore, for obese patients, ABW-based regimens but with a daily dose <250 mg have a high likelihood of achieving an AUCss,24h of 50-100 mg h/L and attaining PK/PD targets with the MIC ≤0.5 mg/L.
Collapse
Affiliation(s)
- Peile Wang
- Department of Pharmacy, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Key Laboratory of Precision Clinical Pharmacy, Zhengzhou University, Zhengzhou, China
| | - Qiwen Zhang
- Department of Pharmacy, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Key Laboratory of Precision Clinical Pharmacy, Zhengzhou University, Zhengzhou, China
| | - Min Feng
- Department of ICU, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Tongwen Sun
- Department of General ICU, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jing Yang
- Department of Pharmacy, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Key Laboratory of Precision Clinical Pharmacy, Zhengzhou University, Zhengzhou, China
| | - Xiaojian Zhang
- Department of Pharmacy, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Key Laboratory of Precision Clinical Pharmacy, Zhengzhou University, Zhengzhou, China
| |
Collapse
|
9
|
Kvitne KE, Robertsen I, Skovlund E, Christensen H, Krogstad V, Wegler C, Angeles PC, Wollmann BM, Hole K, Johnson LK, Sandbu R, Artursson P, Karlsson C, Andersson S, Andersson TB, Hjelmesaeth J, Jansson-Löfmark R, Åsberg A. Short- and long-term effects of body weight loss following calorie restriction and gastric bypass on CYP3A-activity - a non-randomized three-armed controlled trial. Clin Transl Sci 2021; 15:221-233. [PMID: 34435745 PMCID: PMC8742654 DOI: 10.1111/cts.13142] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 07/17/2020] [Accepted: 07/26/2020] [Indexed: 11/29/2022] Open
Abstract
It remains uncertain whether pharmacokinetic changes following Roux-en-Y gastric bypass (RYGB) can be attributed to surgery-induced gastrointestinal alterations per se and/or the subsequent weight loss. The aim was to compare short- and long-term effects of RYGB and calorie restriction on CYP3A-activity, and cross-sectionally compare CYP3A-activity with normal weight to overweight controls using midazolam as probe drug. This three-armed controlled trial included patients with severe obesity preparing for RYGB (n = 41) or diet-induced (n = 41) weight-loss, and controls (n = 18). Both weight-loss groups underwent a 3-week low-energy-diet (<1200 kcal/day) followed by a 6-week very-low-energy-diet or RYGB (both <800 kcal/day). Patients were followed for 2 years, with four pharmacokinetic investigations using semisimultaneous oral and intravenous dosing to determine changes in midazolam absolute bioavailability and clearance, within and between groups. The RYGB and diet groups showed similar weight-loss at week 9 (13 ± 2.4% vs. 11 ± 3.6%), but differed substantially after 2 years (-30 ± 7.0% vs. -3.1 ± 6.3%). At baseline, mean absolute bioavailability and clearance of midazolam were similar in the RYGB and diet groups, but higher compared with controls. On average, absolute bioavailability was unaltered at week 9, but decreased by 40 ± 7.5% in the RYGB group and 32 ± 6.1% in the diet group at year 2 compared with baseline, with no between-group difference. No difference in clearance was observed over time, nor between groups. In conclusion, neither RYGB per se nor weight loss impacted absolute bioavailability or clearance of midazolam short term. Long term, absolute bioavailability was similarly decreased in both groups despite different weight loss, suggesting that the recovered CYP3A-activity is not only dependent on weight-loss through RYGB.
Collapse
Affiliation(s)
- Kine Eide Kvitne
- Section for Pharmacology and Pharmaceutical Biosciences, Department of Pharmacy, University of Oslo, Oslo, Norway
| | - Ida Robertsen
- Section for Pharmacology and Pharmaceutical Biosciences, Department of Pharmacy, University of Oslo, Oslo, Norway
| | - Eva Skovlund
- Department of Public Health and Nursing, Norwegian University of Science and Technology, NTNU, Trondheim, Norway
| | - Hege Christensen
- Section for Pharmacology and Pharmaceutical Biosciences, Department of Pharmacy, University of Oslo, Oslo, Norway
| | - Veronica Krogstad
- Section for Pharmacology and Pharmaceutical Biosciences, Department of Pharmacy, University of Oslo, Oslo, Norway
| | - Christine Wegler
- Department of Pharmacy, Uppsala University, Uppsala, Sweden.,DMPK, Research and Early Development, Cardiovascular, Renal and Metabolism, BioPharmaceuticals R&D, AstraZeneca, Mölndal, Sweden
| | - Philip Carlo Angeles
- Vestfold Hospital Trust, The Morbid Obesity Center, Tønsberg, Norway.,Department of Surgery, Vestfold Hospital Trust, Tønsberg, Norway
| | | | - Kristine Hole
- Center for Psychopharmacology, Diakonhjemmet Hospital, Oslo, Norway
| | | | - Rune Sandbu
- Vestfold Hospital Trust, The Morbid Obesity Center, Tønsberg, Norway.,Department of Surgery, Vestfold Hospital Trust, Tønsberg, Norway
| | - Per Artursson
- Department of Pharmacy and Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Cecilia Karlsson
- Late-stage Development, Cardiovascular, Renal and Metabolism, BioPharmaceuticals R&D, AstraZeneca, Mölndal, Sweden.,Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Shalini Andersson
- Research and Early Development, Discovery Sciences, BioPharmaceuticals R&D, AstraZeneca, Mölndal, Sweden
| | - Tommy B Andersson
- DMPK, Research and Early Development, Cardiovascular, Renal and Metabolism, BioPharmaceuticals R&D, AstraZeneca, Mölndal, Sweden
| | - Jøran Hjelmesaeth
- Vestfold Hospital Trust, The Morbid Obesity Center, Tønsberg, Norway.,Department of Endocrinology, Morbid Obesity and Preventive Medicine, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Rasmus Jansson-Löfmark
- DMPK, Research and Early Development, Cardiovascular, Renal and Metabolism, BioPharmaceuticals R&D, AstraZeneca, Mölndal, Sweden
| | - Anders Åsberg
- Section for Pharmacology and Pharmaceutical Biosciences, Department of Pharmacy, University of Oslo, Oslo, Norway.,Department of Transplantation Medicine, Oslo University Hospital, Oslo, Norway
| |
Collapse
|
10
|
Steenackers N, Wauters L, Van der Schueren B, Augustijns P, Falony G, Koziolek M, Lannoo M, Mertens A, Meulemans A, Raes J, Vangoitsenhoven R, Vieira-Silva S, Weitschies W, Matthys C, Vanuytsel T. Effect of obesity on gastrointestinal transit, pressure and pH using a wireless motility capsule. Eur J Pharm Biopharm 2021; 167:1-8. [PMID: 34273543 DOI: 10.1016/j.ejpb.2021.07.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 06/22/2021] [Accepted: 07/07/2021] [Indexed: 12/15/2022]
Abstract
BACKGROUND Despite the increasing prevalence and medical burden of obesity, the understanding of gastrointestinal physiology in obesity is scarce, which hampers drug development. AIM To investigate the effect of obesity and food intake on gastrointestinal transit, pressure and pH. MATERIAL AND METHODS An exploratory cross-sectional study using a wireless motility capsule (SmartPill©) was performed in 11 participants with obesity and 11 age- and gender-matched participants with normal weight (group) in fasted and fed state (visit). During the first visit, the capsule was ingested after an overnight fast. During a second visit, the capsule was ingested after a nutritional drink to simulate fed state. Linear mixed models were constructed to compare segmental gastrointestinal transit, pressure and pH between groups (obesity or control) and within every group (fasted or fed). RESULTS Food intake slowed gastric emptying in both groups (both P < 0.0001), though food-induced gastric contractility was higher in participants with obesity compared to controls (P = 0.02). In the small intestine, a higher contractility (P = 0.001), shorter transit (P = 0.04) and lower median pH (P = 0.002) was observed in participants with obesity compared to controls. No differences were observed for colonic measurements. CONCLUSION Obesity has a profound impact on gastrointestinal physiology, which should be taken into account for drug development.
Collapse
Affiliation(s)
- N Steenackers
- Clinical and Experimental Endocrinology, Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium.
| | - L Wauters
- Translational Research Center for Gastrointestinal Disorders, Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium.
| | - B Van der Schueren
- Clinical and Experimental Endocrinology, Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium; Department of Endocrinology, University Hospitals Leuven, Leuven, Belgium.
| | - P Augustijns
- Drug Delivery and Disposition, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Leuven, Belgium.
| | - G Falony
- Rega Institute, Department of Microbiology and Immunology, KU Leuven, Leuven, Belgium; Center for Microbiology, VIB, Leuven, Belgium.
| | - M Koziolek
- Institute of Pharmacy, Center of Drug Absorption and Transport, University of Greifswald, Greifswald, Germany.
| | - M Lannoo
- Department of Abdominal Surgery, University Hospitals Leuven, Leuven, Belgium.
| | - A Mertens
- Clinical and Experimental Endocrinology, Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium; Department of Endocrinology, University Hospitals Leuven, Leuven, Belgium.
| | - A Meulemans
- Clinical and Experimental Endocrinology, Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium; Department of Endocrinology, University Hospitals Leuven, Leuven, Belgium.
| | - J Raes
- Rega Institute, Department of Microbiology and Immunology, KU Leuven, Leuven, Belgium; Center for Microbiology, VIB, Leuven, Belgium.
| | - R Vangoitsenhoven
- Clinical and Experimental Endocrinology, Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium; Department of Endocrinology, University Hospitals Leuven, Leuven, Belgium.
| | - S Vieira-Silva
- Rega Institute, Department of Microbiology and Immunology, KU Leuven, Leuven, Belgium; Center for Microbiology, VIB, Leuven, Belgium.
| | - W Weitschies
- Institute of Pharmacy, Center of Drug Absorption and Transport, University of Greifswald, Greifswald, Germany.
| | - C Matthys
- Clinical and Experimental Endocrinology, Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium; Department of Endocrinology, University Hospitals Leuven, Leuven, Belgium.
| | - T Vanuytsel
- Translational Research Center for Gastrointestinal Disorders, Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium; Department of Gastroenterology and Hepatology, University Hospitals Leuven, Leuven, Belgium.
| |
Collapse
|
11
|
Silvestris N, Argentiero A, Natalicchio A, D'Oronzo S, Beretta GD, Acquati S, Adinolfi V, Di Bartolo P, Danesi R, Faggiano A, Ferrari P, Gallo M, Gori S, Morviducci L, Russo A, Tuveri E, Zatelli MC, Montagnani M, Giorgino F. Antineoplastic dosing in overweight and obese cancer patients: an Associazione Italiana Oncologia Medica (AIOM)/Associazione Medici Diabetologi (AMD)/Società Italiana Endocrinologia (SIE)/Società Italiana Farmacologia (SIF) multidisciplinary consensus position paper. ESMO Open 2021; 6:100153. [PMID: 33984679 PMCID: PMC8134762 DOI: 10.1016/j.esmoop.2021.100153] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 03/23/2021] [Accepted: 04/14/2021] [Indexed: 01/22/2023] Open
Abstract
Most anticancer molecules are administered in body-size-based dosing schedules, bringing up unsolved issues regarding pharmacokinetic data in heavy patients. The worldwide spread of obesity has not been matched by improved methods and strategies for tailored drug dosage in this population. The weight or body surface area (BSA)-based approaches may fail to fully reflect the complexity of the anthropometric features besides obesity in cancer patients suffering from sarcopenia. Likewise, there is a lack of pharmacokinetic data on obese patients for the majority of chemotherapeutic agents as well as for new target drugs and immunotherapy. Therefore, although the available findings point to the role of dose intensity in cancer treatment, and support full weight-based dosing, empirical dose capping often occurs in clinical practice in order to avoid toxicity. Thus a panel of experts of the Associazione Italiana Oncologia Medica (AIOM), Associazione Medici Diabetologi (AMD), Società Italiana Endocrinologia (SIE), and Società Italiana Farmacologia (SIF), provides here a consensus statement for appropriate cytotoxic chemotherapy and new biological cancer drug dosing in obese patients. The worldwide spread of obesity is an emerging challenge also in cancer patients Weight or BSA-based approaches do not adequately address the critical issue of optimal dosing for cancer drugs under obesity Empirical dose capping is often employed in clinical practice to avoid toxicities among overweight and obese patients There is a lack of clinical and pharmacokinetic studies in this population Clinical practice recommendations should guide suitable dosing of cytotoxic and biological cancer drugs in obese patients
Collapse
Affiliation(s)
- N Silvestris
- Medical Oncology Unit, IRCCS Istituto Tumori 'Giovanni Paolo II', Bari, Italy; Department of Biomedical Sciences and Human Oncology, Division of Medical Oncology, University of Bari Aldo Moro, Bari, Italy.
| | - A Argentiero
- Medical Oncology Unit, IRCCS Istituto Tumori 'Giovanni Paolo II', Bari, Italy
| | - A Natalicchio
- Department of Emergency and Organ Transplantation, Section of Internal Medicine, Endocrinology, Andrology and Metabolic Diseases, University of Bari Aldo Moro, Bari, Italy
| | - S D'Oronzo
- Department of Biomedical Sciences and Human Oncology, Division of Medical Oncology, University of Bari Aldo Moro, Bari, Italy; Faculty of Medicine, Dentistry and Health, University of Sheffield, Sheffield, UK
| | - G D Beretta
- Medical Oncology Department, Humanitas Gavazzeni, Bergamo, Italy
| | - S Acquati
- Endocrinology Unit, Ospedale Pierantoni-Morgagni, Forlì, Italy
| | - V Adinolfi
- Endocrinology and Diabetology Unit, ASL Verbano Cusio Ossola, Domodossola, Italy
| | - P Di Bartolo
- Diabetology Clinic, Rete Clinica di Diabetologia Aziendale - Dipartimento, Internistico di Ravenna - AUSL Romagna, Ravenna, Italy
| | - R Danesi
- Unit of Clinical Pharmacology and Pharmacogenetics, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - A Faggiano
- Department of Clinical and Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | - P Ferrari
- Palliative Care Unit, Istituti Clinici Scientifici Maugeri SPA SB, IRCCS (PV), Pavia PV, Italy
| | - M Gallo
- Endocrinology and Metabolic Diseases Unit of AO SS Antonio e Biagio e Cesare Arrigo, Alessandria, Italy
| | - S Gori
- Oncologia Medica, IRCCS Ospedale Don Calabria-Sacro Cuore di Negrar, Verona, Italy
| | - L Morviducci
- Diabetology and Nutrition Unit, Department of Medical Specialities, ASL Roma 1 - S. Spirito Hospital, Rome, Italy
| | - A Russo
- Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Palermo, Italy
| | - E Tuveri
- Diabetology, Endocrinology and Metabolic Diseases Service, ATS Sardegna - ASSL Carbonia-Iglesias, Italy
| | - M C Zatelli
- Section of Endocrinology and Internal Medicine, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - M Montagnani
- Department of Biomedical Sciences and Human Oncology, Division of Medical Oncology, University of Bari Aldo Moro, Bari, Italy
| | - F Giorgino
- Department of Emergency and Organ Transplantation, Section of Internal Medicine, Endocrinology, Andrology and Metabolic Diseases, University of Bari Aldo Moro, Bari, Italy
| |
Collapse
|
12
|
Therapeutic drug monitoring-guided continuous infusion of piperacillin/tazobactam significantly improves pharmacokinetic target attainment in critically ill patients: a retrospective analysis of four years of clinical experience. Infection 2019; 47:1001-1011. [PMID: 31473974 DOI: 10.1007/s15010-019-01352-z] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 08/22/2019] [Indexed: 12/14/2022]
Abstract
PURPOSE Standard dosing and intermittent bolus application (IB) are important risk factors for pharmacokinetic (PK) target non-attainment during empirical treatment with β-lactams in critically ill patients, particularly in those with sepsis and septic shock. We assessed the effect of therapeutic drug monitoring-guided (TDM), continuous infusion (CI) and individual dosing of piperacillin/tazobactam (PIP) on PK-target attainment in critically ill patients. METHODS This is a retrospective, single-center analysis of a database including 484 patients [933 serum concentrations (SC)] with severe infections, sepsis and septic shock who received TDM-guided CI of PIP in the intensive care unit (ICU) of an academic teaching hospital. The PK-target was defined as a PIP SC between 33 and 64 mg/L [fT > 2-4 times the epidemiological cutoff value (ECOFF) of Pseudomonas aeruginosa (PSA)]. RESULTS PK-target attainment with standard dosing (initial dose) was observed in 166 patients (34.3%), whereas only 49 patients (10.1%) demonstrated target non-attainment. The minimum PK-target of ≥ 33 mg/L was overall realized in 89.9% (n = 435/484) of patients after the first PIP dose including 146 patients (30.2%) with potentially harmful SCs ≥ 100 mg/L. Subsequent TDM-guided dose adjustments significantly enhanced PK-target attainment to 280 patients (62.4%) and significantly reduced the fraction of potentially overdosed (≥ 100 mg/L) patients to 4.5% (n = 20/449). Renal replacement therapy (RRT) resulted in a relevant reduction of PIP clearance (CLPIP): no RRT CLPIP 6.8/6.3 L/h (median/IQR) [SCs n = 752, patients n = 405], continuous veno-venous hemodialysis (CVVHD) CLPIP 4.3/2.6 L/h [SCs n = 160, n = 71 patients], intermittent hemodialysis (iHD) CLPIP 2.6/2.3 L/h [SCs n = 21, n = 8 patients]). A body mass index (BMI) of > 40 kg/m2 significantly increased CLPIP 9.6/7.7 L/h [SC n = 43, n = 18 patients] in these patients. Age was significantly associated with supratherapeutic PIP concentrations (p < 0.0005), whereas high CrCL led to non-target attainment (p < 0.0005). Patients with target attainment (33-64 mg/L) within the first 24 h exhibited the lowest hospital mortality rates (13.9% [n = 23/166], p < 0.005). Those with target non-attainment demonstrated higher mortality rates (≤ 32 mg/L; 20.8% [n = 10/49] ≥ 64 mg/L; 29.4% [n = 79/269]). CONCLUSION TDM-guided CI of PIP is safe in critically ill patients and improves PK-target attainment. Exposure to defined PK-targets impacts patient mortality while lower and higher than intended SCs may influence the outcome of critically ill patients. Renal function and renal replacement therapy are main determinants of PK-target attainment. These results are only valid for CI of PIP and not for prolonged or intermittent bolus administration of PIP.
Collapse
|
13
|
Guilhaumou R, Benaboud S, Bennis Y, Dahyot-Fizelier C, Dailly E, Gandia P, Goutelle S, Lefeuvre S, Mongardon N, Roger C, Scala-Bertola J, Lemaitre F, Garnier M. Optimization of the treatment with beta-lactam antibiotics in critically ill patients-guidelines from the French Society of Pharmacology and Therapeutics (Société Française de Pharmacologie et Thérapeutique-SFPT) and the French Society of Anaesthesia and Intensive Care Medicine (Société Française d'Anesthésie et Réanimation-SFAR). Crit Care 2019; 23:104. [PMID: 30925922 PMCID: PMC6441232 DOI: 10.1186/s13054-019-2378-9] [Citation(s) in RCA: 278] [Impact Index Per Article: 55.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Accepted: 02/26/2019] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Beta-lactam antibiotics (βLA) are the most commonly used antibiotics in the intensive care unit (ICU). ICU patients present many pathophysiological features that cause pharmacokinetic (PK) and pharmacodynamic (PD) specificities, leading to the risk of underdosage. The French Society of Pharmacology and Therapeutics (SFPT) and the French Society of Anaesthesia and Intensive Care Medicine (SFAR) have joined forces to provide guidelines on the optimization of beta-lactam treatment in ICU patients. METHODS A consensus committee of 18 experts from the two societies had the mission of producing these guidelines. The entire process was conducted independently of any industry funding. A list of questions formulated according to the PICO model (Population, Intervention, Comparison, and Outcomes) was drawn-up by the experts. Then, two bibliographic experts analysed the literature published since January 2000 using predefined keywords according to PRISMA recommendations. The quality of the data identified from the literature was assessed using the GRADE® methodology. Due to the lack of powerful studies having used mortality as main judgement criteria, it was decided, before drafting the recommendations, to formulate only "optional" recommendations. RESULTS After two rounds of rating and one amendment, a strong agreement was reached by the SFPT-SFAR guideline panel for 21 optional recommendations and a recapitulative algorithm for care covering four areas: (i) pharmacokinetic variability, (ii) PK-PD relationship, (iii) administration modalities, and (iv) therapeutic drug monitoring (TDM). The most important recommendations regarding βLA administration in ICU patients concerned (i) the consideration of the many sources of PK variability in this population; (ii) the definition of free plasma concentration between four and eight times the Minimal Inhibitory Concentration (MIC) of the causative bacteria for 100% of the dosing interval as PK-PD target to maximize bacteriological and clinical responses; (iii) the use of continuous or prolonged administration of βLA in the most severe patients, in case of high MIC bacteria and in case of lower respiratory tract infection to improve clinical cure; and (iv) the use of TDM to improve PK-PD target achievement. CONCLUSIONS The experts strongly suggest the use of personalized dosing, continuous or prolonged infusion and therapeutic drug monitoring when administering βLA in critically ill patients.
Collapse
Affiliation(s)
- Romain Guilhaumou
- AP-HM Hôpital de la Timone, Service de Pharmacologie Clinique et Pharmacovigilance, 264 rue Saint Pierre, 13005 Marseille, France
| | - Sihem Benaboud
- AP-HP Hôpital Cochin, Service de Pharmacologie, 27 rue du Faubourg St-Jacques, 75679 Paris Cedex 14, France
| | - Youssef Bennis
- CHU d’Amiens Picardie, Service de Pharmacologie Clinique, UPJV EA7517, Avenue Laennec, 80054 Amiens Cedex 1, France
| | - Claire Dahyot-Fizelier
- CHU de Poitiers, Département d’Anesthésie Réanimation, 2 Rue de la Milétrie, 86021 Poitiers, France
| | - Eric Dailly
- CHU de Nantes, Département de Pharmacologie Clinique, 5 allée de l’île gloriette, 44093 Nantes Cedex 01, France
| | - Peggy Gandia
- CHU de Toulouse, Laboratoire de Pharmacocinétique et Toxicologie Clinique, Institut Fédératif de Biologie, 330, avenue de Grande-Bretagne, 31059 Toulouse cedex 9, France
| | - Sylvain Goutelle
- CHU de Lyon, Service de Pharmacie, Groupement Hospitalier Nord, Hôpital Pierre Garraud, 136 rue du Commandant Charcot, 69322 Lyon cedex 05, France
| | - Sandrine Lefeuvre
- CHR d’Orléans, Laboratoire de Biochimie, 14 Avenue de l’Hôpital, 45067 Orléans, France
| | - Nicolas Mongardon
- AP-HP Hôpital Henri Mondor, Département d’Anesthésie-Réanimation, 51 Avenue du Maréchal de Lattre de Tassigny, 94000 Créteil, France
| | - Claire Roger
- CHU de Nîmes, Département d’anesthésie, réanimation, douleur et médicine d’urgence, Place du Pr Robert Debré, 30029 Nîmes cedex 9, France
| | - Julien Scala-Bertola
- CHRU de Nancy, Département de pharmacologie clinique et de toxicologie, 29 rue Lionnois, 54000 Nancy, France
| | - Florian Lemaitre
- CHU Pontchaillou, Service de Pharmacologie Clinique et épidémiologique, 2 Rue Henri le Guilloux, 35000 Rennes, France
| | - Marc Garnier
- AP-HP Hôpital Tenon, Département d’Anesthésie et Réanimation, 4 rue de la Chine, 75020 Paris, France
| |
Collapse
|
14
|
Schetz M, De Jong A, Deane AM, Druml W, Hemelaar P, Pelosi P, Pickkers P, Reintam-Blaser A, Roberts J, Sakr Y, Jaber S. Obesity in the critically ill: a narrative review. Intensive Care Med 2019; 45:757-769. [PMID: 30888440 DOI: 10.1007/s00134-019-05594-1] [Citation(s) in RCA: 235] [Impact Index Per Article: 47.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Accepted: 03/05/2019] [Indexed: 11/24/2022]
Abstract
The World Health Organization defines overweight and obesity as the condition where excess or abnormal fat accumulation increases risks to health. The prevalence of obesity is increasing worldwide and is around 20% in ICU patients. Adipose tissue is highly metabolically active, and especially visceral adipose tissue has a deleterious adipocyte secretory profile resulting in insulin resistance and a chronic low-grade inflammatory and procoagulant state. Obesity is strongly linked with chronic diseases such as type 2 diabetes, hypertension, cardiovascular diseases, dyslipidemia, non-alcoholic fatty liver disease, chronic kidney disease, obstructive sleep apnea and hypoventilation syndrome, mood disorders and physical disabilities. In hospitalized and ICU patients and in patients with chronic illnesses, a J-shaped relationship between BMI and mortality has been demonstrated, with overweight and moderate obesity being protective compared with a normal BMI or more severe obesity (the still debated and incompletely understood "obesity paradox"). Despite this protective effect regarding mortality, in the setting of critical illness morbidity is adversely affected with increased risk of respiratory and cardiovascular complications, requiring adapted management. Obesity is associated with increased risk of AKI and infection, may require adapted drug dosing and nutrition and is associated with diagnostic and logistic challenges. In addition, negative attitudes toward obese patients (the social stigma of obesity) affect both health care workers and patients.
Collapse
Affiliation(s)
- Miet Schetz
- Division of Cellular and Molecular Medicine, Clinical Department and Laboratory of Intensive Care Medicine, KU Leuven University, Herestraat 49, 3000, Leuven, Belgium.
| | - Audrey De Jong
- Anesthesia and Critical Care Department (DAR-B), Saint Eloi, University of Montpellier, Research Unit: PhyMedExp, INSERM U-1046, CNRS, 34295, Montpellier Cedex 5, France
| | - Adam M Deane
- Department of Medicine and Radiology, Melbourne Medical School, Royal Melbourne Hospital, The University of Melbourne, Parkville, VIC, Australia.,Department of Medicine (Royal Melbourne Hospital), University of Melbourne, Parkville, VIC, Australia
| | - Wilfried Druml
- Klinik für Innere Medizin III, Abteilung für Nephrologie, Allgemeines Krankenhaus Wien, Währinger Gürtel 18-20, 1090, Vienna, Austria
| | - Pleun Hemelaar
- Department of Intensive Care Medicine (710), Radboud University Medical Centre, Geert Grooteplein Zuid 10, P.O. Box 9101, 6500 HB, Nijmegen, The Netherlands
| | - Paolo Pelosi
- Department of Surgical Sciences and Integrated Diagnostics, University of Genoa, Genoa, Italy.,Anesthesia and Intensive Care, San Martino Policlinico Hospital, IRCCS for Oncology and Neurosciences, Genoa, Genoa, Italy
| | - Peter Pickkers
- Department of Intensive Care Medicine (710), Radboud University Medical Centre, Geert Grooteplein Zuid 10, P.O. Box 9101, 6500 HB, Nijmegen, The Netherlands.,Radboud Center for Infectious Diseases, Nijmegen, The Netherlands
| | - Annika Reintam-Blaser
- Department of Intensive Care Medicine, Lucerne Cantonal Hospital, Lucerne, Switzerland.,Department of Anaesthesiology and Intensive Care, University of Tartu, Tartu, Estonia
| | - Jason Roberts
- University of Queensland Centre for Clinical Research, Faculty of Medicine, University of Queensland, Herston, Australia.,Centre for Translational Anti-infective Pharmacodynamics, School of Pharmacy, The University of Queensland, Woolloongabba, Australia.,Pharmacy Department, Royal Brisbane and Women's Hospital, Brisbane, Australia.,Departments of Intensive Care Medicine, Royal Brisbane and Women's Hospital, Brisbane, Australia
| | - Yasser Sakr
- Department of Anesthesiology and Intensive Care, Uniklinikum Jena, Jena, Germany
| | - Samir Jaber
- Anesthesia and Critical Care Department (DAR-B), Saint Eloi, University of Montpellier, Research Unit: PhyMedExp, INSERM U-1046, CNRS, 34295, Montpellier Cedex 5, France
| |
Collapse
|
15
|
Stanczyk FZ, Burke AE, Hong KM, Archer DF. Morbid obesity: potential effects of hormonal contraception. Contraception 2018; 98:174-180. [PMID: 29777662 DOI: 10.1016/j.contraception.2018.05.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 05/06/2018] [Accepted: 05/07/2018] [Indexed: 12/22/2022]
Affiliation(s)
- Frank Z Stanczyk
- Departments of Obstetrics and Gynecology, and Preventive Medicine, Keck School of Medicine of USC, Los Angeles, CA 90033, USA.
| | - Anne E Burke
- Department of Gynecology and Obstetrics, Johns Hopkins University, Baltimore, MD 21224, USA
| | - Kurt M Hong
- Center of Clinical Nutrition and Applied Health Research, Keck School of Medicine of USC, Los Angeles, CA 90033, USA
| | - David F Archer
- Department of Obstetrics and Gynecology, Eastern Virginia Medical School, Norfolk, VA 23507, USA
| |
Collapse
|
16
|
Xiong Y, Fukuda T, Knibbe CAJ, Vinks AA. Drug Dosing in Obese Children: Challenges and Evidence-Based Strategies. Pediatr Clin North Am 2017; 64:1417-1438. [PMID: 29173794 DOI: 10.1016/j.pcl.2017.08.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
With the alarming increase of obesity in children, pediatricians are increasingly being confronted with difficult dosing decisions. Many drug labels do not provide specific dosing instructions for children who are obese. In this article, we describe the physiologic parameters altered by obesity and their influences on drug disposition and effect. We review the principles of allometry, and the key pharmacokinetic parameters that can be used to derive age appropriate dosing regimens. Last, we illustrate how appropriate weight descriptors can be selected, and how important PK parameters can be extrapolated for dosing in obese children when pediatric pharmacokinetic information is available.
Collapse
Affiliation(s)
- Ye Xiong
- Division of Clinical Pharmacology, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue, MLC 6018, Cincinnati, OH 45229-3039, USA
| | - Tsuyoshi Fukuda
- Division of Clinical Pharmacology, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue, MLC 6018, Cincinnati, OH 45229-3039, USA; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Catherijne A J Knibbe
- Department of Clinical Pharmacy, St Antonius Hospital, PO Box 2500, Nieuwegein 3430 EM, The Netherlands; Division of Pharmacology, Leiden Academic Center for Drug Research, Faculty of Science, Leiden University, PO Box 9502, 2300 RA, Leiden, The Netherlands
| | - Alexander A Vinks
- Division of Clinical Pharmacology, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue, MLC 6018, Cincinnati, OH 45229-3039, USA; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA.
| |
Collapse
|
17
|
Kus K, Kus E, Zakrzewska A, Jawien W, Sitek B, Walczak M, Chlopicki S. Differential effects of liver steatosis on pharmacokinetic profile of two closely related hepatoselective NO-donors; V-PYRRO/NO and V-PROLI/NO. Pharmacol Rep 2017; 69:560-565. [DOI: 10.1016/j.pharep.2017.01.031] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Accepted: 01/30/2017] [Indexed: 01/21/2023]
|
18
|
Simmons KB, Edelman AB. Hormonal contraception and obesity. Fertil Steril 2016; 106:1282-1288. [PMID: 27565257 DOI: 10.1016/j.fertnstert.2016.07.1094] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 07/14/2016] [Accepted: 07/15/2016] [Indexed: 12/18/2022]
Abstract
The rising rate of overweight and obesity is a public health crisis in the United States and increasingly around the globe. Rates of contraceptive use are similar among women of all weights, but because contraceptive development studies historically excluded women over 130% of ideal body weight, patients and providers have a gap in understanding of contraceptive efficacy for obese and overweight women. Because of a range of drug metabolism alterations in obesity, there is biologic plausibility for changes in hormonal contraception effectiveness in obese women. However, these pharmacokinetic changes are not linearly related to body mass index or weight, and it is unknown what degree of obesity begins to affect pharmacokinetic or pharmacodynamics processes. Overall, most studies of higher quality do not demonstrate a difference in oral contraceptive pill effectiveness in obese compared with non-obese women. However, data are scant for women in the highest categories of obesity, and differences by progestin type are incompletely understood. Effectiveness of most non-oral contraceptives does not seem to be compromised in obesity. Exceptions to this include the combined hormonal patch and oral levonorgestrel emergency contraception, which may have lower rates of effectiveness in obese women. The purpose of this review is to summarize evidence on contraceptive use in women with obesity, including differences in steroid hormone metabolism, contraceptive effectiveness, and safety, compared with women of normal weight or body mass index using the same methods.
Collapse
Affiliation(s)
- Katharine B Simmons
- Department of Obstetrics and Gynecology, University of North Carolina, Chapel Hill, North Carolina
| | - Alison B Edelman
- Department of Obstetrics and Gynecology, Oregon Health & Science University, Portland, Oregon.
| |
Collapse
|
19
|
Hanrahan TP, Lipman J, Roberts JA. Antibiotic dosing in obesity: a BIG challenge. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2016; 20:240. [PMID: 27506812 PMCID: PMC4979140 DOI: 10.1186/s13054-016-1426-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Timothy P Hanrahan
- Burns Trauma and Critical Care Research Centre, The University of Queensland, Brisbane, Queensland, Australia.,Department of Intensive Care Medicine, The Royal Brisbane and Women's Hospital, Brisbane, Queensland, Australia
| | - Jeffrey Lipman
- Burns Trauma and Critical Care Research Centre, The University of Queensland, Brisbane, Queensland, Australia. .,Department of Intensive Care Medicine, The Royal Brisbane and Women's Hospital, Brisbane, Queensland, Australia.
| | - Jason A Roberts
- Burns Trauma and Critical Care Research Centre, The University of Queensland, Brisbane, Queensland, Australia.,Department of Intensive Care Medicine, The Royal Brisbane and Women's Hospital, Brisbane, Queensland, Australia.,Pharmacy Department, The Royal Brisbane and Women's Hospital, Brisbane, Queensland, Australia.,School of Pharmacy, The University of Queensland, Brisbane, Queensland, Australia
| |
Collapse
|
20
|
Alobaid AS, Hites M, Lipman J, Taccone FS, Roberts JA. Effect of obesity on the pharmacokinetics of antimicrobials in critically ill patients: A structured review. Int J Antimicrob Agents 2016; 47:259-68. [PMID: 26988339 DOI: 10.1016/j.ijantimicag.2016.01.009] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Revised: 01/19/2016] [Accepted: 01/22/2016] [Indexed: 02/07/2023]
Abstract
The increased prevalence of obesity presents challenges for clinicians aiming to provide optimised antimicrobial dosing in the intensive care unit. Obesity is likely to exacerbate the alterations to antimicrobial pharmacokinetics when the chronic diseases associated with obesity exist with the acute pathophysiological changes associated with critical illness. The purpose of this paper is to review the potential pharmacokinetic (PK) changes of antimicrobials in obese critically ill patients and the implications for appropriate dosing. We found that hydrophilic antimicrobials (e.g. β-lactams, vancomycin, daptomycin) were more likely to manifest altered pharmacokinetics in critically ill patients who are obese. In particular for β-lactam antibiotics, obesity is associated with a larger volume of distribution (V(d)). In obese critically ill patients, piperacillin is also associated with a lower drug clearance (CL). For doripenem, these PK changes have been associated with reduced achievement of pharmacodynamic (PD) targets when standard drug doses are used. For vancomycin, increases in Vd are associated with increasing total body weight (TBW), meaning that the loading dose should be based on TBW even in obese patients. For daptomycin, an increased Vd is not considered to be clinically relevant. For antifungals, little data exist in obese critically ill patients; during fluconazole therapy, an obese patient had a lower V(d) and higher CL than non-obese comparators. Overall, most studies suggested that standard dosage regimens of most commonly used antimicrobials are sufficient to achieve PD targets. However, it is likely that larger doses would be required for pathogens with higher minimum inhibitory concentrations.
Collapse
Affiliation(s)
- Abdulaziz S Alobaid
- Burns, Trauma & Critical Care Research Centre, The University of Queensland, Brisbane, QLD, Australia
| | - Maya Hites
- Department of Infectious Diseases, Erasme Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - Jeffrey Lipman
- Burns, Trauma & Critical Care Research Centre, The University of Queensland, Brisbane, QLD, Australia; Royal Brisbane and Women's Hospital, Brisbane, QLD, Australia
| | - Fabio Silvio Taccone
- Department of Intensive Care, Erasme Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - Jason A Roberts
- Burns, Trauma & Critical Care Research Centre, The University of Queensland, Brisbane, QLD, Australia; Royal Brisbane and Women's Hospital, Brisbane, QLD, Australia; School of Pharmacy, The University of Queensland, Brisbane, QLD, Australia.
| |
Collapse
|
21
|
Abstract
The increasing prevalence of obesity in developed nations has far-reaching implications for medical toxicology. The management of obese patients is complicated by comorbid illnesses, changes in cardiovascular and respiratory physiology, alterations in pharmacokinetics, and a lack of studies to identify appropriate dosing for current therapeutics and antidotes. In this review article, we examine obesity-associated physiologic and pharmacokinetic changes that may increase the vulnerability of obese patients to overdose. Further research is needed to characterize the relationship between drug toxicity and obesity.
Collapse
Affiliation(s)
- Matthew Zuckerman
- University of Colorado, Anschutz Medical Campus, 12401 East 17th Avenue, Rm 759, Aurora, CO, 80045, USA,
| | | | | |
Collapse
|
22
|
Bartlett G, Rahimzadeh V, Longo C, Orlando LA, Dawes M, Lachaine J, Bochud M, Paccaud F, Bergman H, Crimi L, Issa AM. The future of genomic testing in primary care: the changing face of personalized medicine. Per Med 2014; 11:477-486. [PMID: 29758776 DOI: 10.2217/pme.14.36] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Primary care is recognized worldwide as a key component for improving health outcomes in the population. At the same time, healthcare systems are rapidly changing with increasing expectations from technological advances. Genomics is a major driver in changing how medicine is being practiced; however, the importance for primary care has been under-appreciated. Strategically implementing genomics in a way that accounts for the unique characteristics of the primary care context is essential. In this perspective, we present important areas that we believe are critical in consideration of both the future of genomic medicine and primary healthcare delivery.
Collapse
Affiliation(s)
- Gillian Bartlett
- Department of Family Medicine, McGill University, 5858 Cote-des-Neiges, Suite 300, Montreal, Quebec, H3S 1Z1, Canada
| | - Vaso Rahimzadeh
- Department of Family Medicine, McGill University, 5858 Cote-des-Neiges, Suite 300, Montreal, Quebec, H3S 1Z1, Canada
| | - Cristina Longo
- Department of Family Medicine, McGill University, 5858 Cote-des-Neiges, Suite 300, Montreal, Quebec, H3S 1Z1, Canada
| | - Lori A Orlando
- Department of Medicine & Center for Personalized & Precision Medicine, Duke University, Wallace Clinic, Room 204, 3475 Erwin Rd, Duke Box 3022, Durham, NC 27705, USA
| | - Martin Dawes
- Department of Family Practice, University of British Columbia, David Strangway Building Third floor, 5950 University Blvd, Vancouver, British Columbia, V6T 1Z3, Canada
| | - Jean Lachaine
- Faculté de Pharmacie, Université de Montréal, C.P. 6128, Succursale Centre-ville, Montréal, Québec, H3C 3J7, Canada
| | - Murielle Bochud
- University Institute of Social & Preventive Medicine, Lausanne University Hospital, Route de la Corniche 10, 1010 Lausanne, Switzerland
| | - Fred Paccaud
- University Institute of Social & Preventive Medicine, Lausanne University Hospital, Route de la Corniche 10, 1010 Lausanne, Switzerland
| | - Howard Bergman
- Department of Family Medicine, McGill University, 5858 Cote-des-Neiges, Suite 300, Montreal, Quebec, H3S 1Z1, Canada
| | - Laura Crimi
- Department of Family Medicine, McGill University, 5858 Cote-des-Neiges, Suite 300, Montreal, Quebec, H3S 1Z1, Canada
| | - Amalia M Issa
- Program in Personalized Medicine & Targeted Therapeutics & the Department of Health Policy & Public Health, University of the Sciences, 600 South 43rd Street, Philadelphia, PA 19104, USA
| |
Collapse
|
23
|
Song GS. Influence of indoor and outdoor temperatures on the fingertip blood flow rate. APPLIED ERGONOMICS 2014; 45:1048-1055. [PMID: 24468682 DOI: 10.1016/j.apergo.2014.01.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2013] [Revised: 12/31/2013] [Accepted: 01/07/2014] [Indexed: 06/03/2023]
Abstract
A total of 58 healthy subjects participated to elucidate the influence of indoor and outdoor temperatures on blood flow. After walking outdoors for 20 min, the blood flow rate of a subject was measured. The subject then entered a classroom and studied for 120 min, and afterwards, the blood flow rate was measured again. The subjects were exposed to outdoor temperature ranging from -2.5 to 33.7°C. During the summer, the average blood flow rate after walking outdoors was 45.95 ± 25.790 TPU (tissue perfusion units); after the class, this decreased to 36.14 ± 21.837 TPU (p<0.05). During the autumn, the blood flow rate decreased from 27.69 ± 12.334 TPU to 12.47 ± 12.255 TPU (p<0.001). When the outside air temperature was below 3°C, the blood flow rate indoors increased significantly from 6.74 ± 3.540 TPU to 13.95 ± 11.522 TPU (p<0.05). In a comfortable and healthy environment, the blood flow rate was not constant but fluctuated between 15 TPU and 40 TPU.
Collapse
Affiliation(s)
- Gook-Sup Song
- Department of Architecture, Bucheon University, 424 Simgok-dong Wonmi-gu, Bucheon-si, Geongki-do 420-735, Republic of Korea.
| |
Collapse
|
24
|
Subramanian M, Kurawattimath V, Pocha K, Freeden C, Rao I, Thanga Mariappan T, Marathe PH, Vikramadithyan RK, Abraham P, Kulkarni CP, Katnapally P, Nutakki R, Paruchury S, Bhutani P, Mandlekar S. Role of hepatic blood flow and metabolism in the pharmacokinetics of ten drugs in lean, aged and obese rats. Xenobiotica 2014; 44:1108-16. [DOI: 10.3109/00498254.2014.932470] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|