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Sliefert M, Maloba M, Wexler C, Were F, Mbithi Y, Mugendi G, Maliski E, Nicolay Z, Thomas G, Kale S, Maosa N, Finocchario-Kessler S. Challenges with pediatric antiretroviral therapy administration: Qualitative perspectives from caregivers and HIV providers in Kenya. PLoS One 2024; 19:e0296713. [PMID: 38194419 PMCID: PMC10775971 DOI: 10.1371/journal.pone.0296713] [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: 05/16/2023] [Accepted: 12/15/2023] [Indexed: 01/11/2024] Open
Abstract
BACKGROUND Current formulations of pediatric antiretroviral therapy (ART) for children with HIV present significant barriers to adherence, leading to drug resistance, ART ineffectiveness, and preventable child morbidity and mortality. Understanding these challenges and how they contribute to suboptimal adherence is an important step in improving outcomes. This qualitative study describes how regimen-related challenges create barriers to adherence and impact families. METHODS We conducted key informant interviews (KIIs) with 30 healthcare providers and 9 focus group discussions (FGDs) with a total of 72 caregivers, across three public hospitals in Siaya and Mombasa Kenya. The KIIs and FGDs were audio recorded, translated, and transcribed verbatim. The transcripts were hand coded based on emergent and a-priori themes. RESULTS Caregivers discussed major regimen-related challenges to adherence included poor palatability of current formulations, complex preparation, and administration (including measuring, crushing, dissolving, mixing), complex drug storage, and frequent refill appointments and how these regimen-related challenges contributed to individual and intrapersonal barriers to adherence. Caregivers discussed how poor taste led to child anxiety, refusal of medications, and the need for caregivers to use bribes or threats during administration. Complex preparation led to concerns and challenges about maintaining privacy and confidentiality, especially during times of travel. Providers corroborated this patient experience and described how these challenges with administration led to poor infant outcomes, including high viral load and preventable morbidity. Providers discussed how the frequency of refills could range from every 2 weeks to every 3 months, depending on the patient. Caregivers discussed how these refill frequencies interrupted work and school schedules, risked unwanted disclosure to peers, required use of financial resources for travel, and ultimately were a challenge to adherence. CONCLUSION These findings highlight the need for improved formulations for pediatric ART to ease the daily burden on caregivers and children to increase adherence, improve child health, and overall quality of life of families.
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Affiliation(s)
- Michala Sliefert
- University of Kansas Medical Center, Kansas City, KS, United States of America
| | - May Maloba
- Global Health Innovations, Nairobi, Kenya
| | - Catherine Wexler
- University of Kansas Medical Center, Kansas City, KS, United States of America
| | | | | | | | - Edward Maliski
- Oak Therapeutics, Lawrence, KS, United States of America
| | | | - Gregory Thomas
- University of Kansas, Lawrence, KS, United States of America
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Mennecier A, Matoka B, Wilfred-Tonga MM, Chunda-Liyoka C, Mwiya M, Nagot N, Molès JP, Van de Perre P, Kankasa C, King R. Facilitators and barriers to infant post-natal HIV prophylaxis, a qualitative sub-study of the PROMISE-EPI trial in Lusaka, Zambia. Front Public Health 2023; 11:1242904. [PMID: 37663847 PMCID: PMC10469758 DOI: 10.3389/fpubh.2023.1242904] [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: 06/19/2023] [Accepted: 08/07/2023] [Indexed: 09/05/2023] Open
Abstract
Background Infant post-natal prophylaxis (PNP) is used to prevent HIV transmission through breastfeeding. The WHO edited recommendations but so far there is no consensus on the duration of prophylaxis and the type of drug used depends on national guidelines. In Zambia, the national recommendations include a three-drug prophylaxis, composed of a dispersible combined tablet of zidovudine (AZT) and lamivudine (3TC) and an oral suspension of nevirapine (NVP) for 12 weeks or until the mother's viral load is <1,000 cp/mL. The PROMISE-EPI study, modified the PNP regimen to lamivudine only, initiated at 6 weeks and continued until 12 months to all HIV exposed uninfected infants of virally unsuppressed mothers. Our aim in this analysis was to identify barriers and facilitators to this extended PNP, the keystone toward an effective prevention. Methods Individual interviews and focus group discussion (FGD) were conducted with PROMISE-EPI participants who had received prophylaxis for their children from the national program up to 6 weeks and then lamivudine oral solution in PROMISE-EPI study. Health care providers and PROMISE-EPI staff were also interviewed. Sessions were recorded, transcribed verbatim and translated from local languages into English. An initial code-book was designed and then adapted on the basis of the emerging themes, to allow a descriptive thematic analysis. Results More barriers to PNP adherence were identified with triple drug prophylaxis than with lamivudine. These barriers were related to the formulation and bitter taste of AZT/3TC tablets. The ready to use formulation and sweet taste of lamivudine syrup were appreciated by mothers. Extended PNP proposed in the PROMISE-EPI study was globally well accepted and strategies were found to increase adherence. Adherence to lamivudine appeared to be better than the mothers' adherence to their own antiretroviral therapy. Conclusion Accompanying mothers living with HIV and giving them the choice of the PNP to prevent transmission via breastfeeding (type of PNP regimen and extended PNP in non-adherent mothers), may be one of the keys to reducing the burden of pediatric HIV acquisition in low and middle income countries.
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Affiliation(s)
- Anaïs Mennecier
- Pathogenesis and Control of Chronic and Emerging Infections, Montpellier University, INSERM, EFS, CHU Montpellier, Montpellier, France
| | - Beauty Matoka
- Pediatric Centre of Excellence, University Teaching Hospital, Lusaka, Zambia
| | | | | | - Mwiya Mwiya
- Pediatric Centre of Excellence, University Teaching Hospital, Lusaka, Zambia
| | - Nicolas Nagot
- Pathogenesis and Control of Chronic and Emerging Infections, Montpellier University, INSERM, EFS, CHU Montpellier, Montpellier, France
| | - Jean-Pierre Molès
- Pathogenesis and Control of Chronic and Emerging Infections, Montpellier University, INSERM, EFS, CHU Montpellier, Montpellier, France
| | - Philippe Van de Perre
- Pathogenesis and Control of Chronic and Emerging Infections, Montpellier University, INSERM, EFS, CHU Montpellier, Montpellier, France
| | - Chipepo Kankasa
- Pediatric Centre of Excellence, University Teaching Hospital, Lusaka, Zambia
| | - Rachel King
- Pathogenesis and Control of Chronic and Emerging Infections, Montpellier University, INSERM, EFS, CHU Montpellier, Montpellier, France
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Tukei VJ, Herrera N, Masitha M, Masenyetse L, Mokone M, Mokone M, Maile L, Gill MM. Optimizing antiretroviral therapy for children living with HIV: Experience from an observational cohort in Lesotho. PLoS One 2023; 18:e0288619. [PMID: 37459349 PMCID: PMC10351696 DOI: 10.1371/journal.pone.0288619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Accepted: 06/30/2023] [Indexed: 07/20/2023] Open
Abstract
INTRODUCTION We describe transition of HIV-positive children from efavirenz- or nevirapine-based antiretroviral therapy (ART) to optimal dolutegravir (DTG) or lopinavir/ritonavir (LPV/r) (solid formulation)-based ART in Lesotho. METHODS We followed a cohort of children less than 15 years of age who were initiated on ART on or after January 1, 2018 from 21 selected health facilities in Lesotho. From March 2020 to May 2022, we collected data retrospectively through chart abstraction and prospectively through caregiver interviews to cover a period of 24 months following treatment initiation. We used a structured questionnaire to collect data on demographics, ART regimen, drug formulations and switches, viral suppression, retention, and drug administration challenges. Data were summarized as frequencies and percentages, using SAS ver.9.4. RESULTS Of 310 children enrolled in the study, 169 (54.5%) were female, and median age at ART initiation was 5.9 years (IQR 1.1-11.1). During follow-up, 19 (6.1%) children died, 41 (13.2%) were lost to follow-up and 74 (23.9%) transferred to non-study sites. At baseline, 144 (46.4%) children were receiving efavirenz-based ART regimen, 133 (42.9%) LPV/r, 27 (8.7%) DTG, 5 (1.6%) nevirapine; 1 child had incomplete records. By study end, 143 (46.1%) children were receiving LPV/r-based ART regimen, 109 (35.2%) DTG, and 58 (18.7%) were on efavirenz or nevirapine-based regimen. Of 116 children with viral load results after six months or more on a consistent regimen, viral suppression was seen in 35/53 (66.0%) children on LPV/r, 36/38 (94.7%) children on DTG and 19/24 (79.2%) children on efavirenz. CONCLUSION Following optimal ART introduction in Lesotho, most children in the cohort were transitioned and many attained or maintained viral suppression after transition; however, we recommend more robust viral load monitoring and patient tracking to reduce losses and improve outcomes after ART transition.
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Affiliation(s)
| | - Nicole Herrera
- Elizabeth Glaser Pediatric AIDS Foundation, Washington, D.C., United States of America
| | | | | | | | - Mafusi Mokone
- Elizabeth Glaser Pediatric AIDS Foundation, Maseru, Lesotho
| | | | - Michelle M. Gill
- Elizabeth Glaser Pediatric AIDS Foundation, Washington, D.C., United States of America
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Litalien C, Bérubé S, Tuleu C, Gilpin A, Landry ÉK, Valentin M, Strickley R, Turner MA. From Paediatric Formulations Development to Access: Advances Made and Remaining Challenges. Br J Clin Pharmacol 2022; 88:4349-4383. [PMID: 35229891 DOI: 10.1111/bcp.15293] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 02/01/2022] [Indexed: 11/26/2022] Open
Abstract
Developing suitable paediatric formulations and ensuring access to them by the greatest number of the 2.2 billion children worldwide are equally important to provide optimal pharmacotherapy. This review focuses on the progress made over the last two decades with paediatric oral formulations with respect to evidence for acceptability and dosing flexibility of liquid and solid oral dosage forms (SODFs). It also discusses the clinical needs for, and the access to, paediatric formulations for existing authorised medicines. A significant body of new knowledge now supports the acceptability of solid oral dosage forms (SODFs) in children, resulting in an increasing number of medicines commercialised as multiparticulates, including minitablets that are starting to be brought to market. However, there are gaps with these formulations that deserve more research. Even though efforts have been made to identify medicines in need of age-appropriate formulations, there is no common priority list shared internationally. Such prioritization would help to develop paediatric formulations with the greatest potential for providing a health benefit to children worldwide. In addition, available data highlight that paediatric formulation access is fragmented and unequal, with commercialisation of suitable paediatric formulations too often limited to some countries/regions. We propose actions to better align decisions during the development of paediatric formulations and promote a more globalized approach to facilitate registration pathways between different jurisdictions. Furthermore, discussions about alignment between approval, pricing, and reimbursement processes should also happen, leaving working in siloes behind us. It is time adults start thinking outside the box for children.
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Affiliation(s)
- Catherine Litalien
- Division of General Pediatrics, Department of Pediatrics, Centre Hospitalier Universitaire Sainte-Justine, Montréal, Québec, Canada.,The Rosalind and Morris Goodman Family Pediatric Formulations Centre, Centre Hospitalier Universitaire Sainte-Justine, Montréal, Québec, Canada
| | - Sophie Bérubé
- The Rosalind and Morris Goodman Family Pediatric Formulations Centre, Centre Hospitalier Universitaire Sainte-Justine, Montréal, Québec, Canada
| | - Catherine Tuleu
- Department of Pharmaceutics, UCL School of Pharmacy, London, United Kingdom
| | - Andrea Gilpin
- The Rosalind and Morris Goodman Family Pediatric Formulations Centre, Centre Hospitalier Universitaire Sainte-Justine, Montréal, Québec, Canada
| | - Émilie Kate Landry
- The Rosalind and Morris Goodman Family Pediatric Formulations Centre, Centre Hospitalier Universitaire Sainte-Justine, Montréal, Québec, Canada
| | | | - Robert Strickley
- Pliant Therapeutics Inc, South San Francisco, California, United States
| | - Mark A Turner
- Neonatal Unit, Liverpool Women's NHS Foundation Trust, Liverpool, United Kingdom.,Department of Women's and Children's Health, University of Liverpool, Liverpool Health Partners, Liverpool, UK
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Yin HS, Neuspiel DR, Paul IM, Franklin W, Tieder JS, Adirim T, Alvarez F, Brown JM, Bundy DG, Ferguson LE, Gleeson SP, Leu M, Mueller BU, Connor Phillips S, Quinonez RA, Rea C, Rinke ML, Shaikh U, Shiffman RN, Vickers Saarel E, Spencer Cockerham SP, Mack Walsh K, Jones B, Adler AC, Foster JH, Green TP, Houck CS, Laughon MM, Neville K, Reigart JR, Shenoi R, Sullivan JE, Van Den Anker JN, Verhoef PA. Preventing Home Medication Administration Errors. Pediatrics 2021; 148:183379. [PMID: 34851406 DOI: 10.1542/peds.2021-054666] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Medication administration errors that take place in the home are common, especially when liquid preparations are used and complex medication schedules with multiple medications are involved; children with chronic conditions are disproportionately affected. Parents and other caregivers with low health literacy and/or limited English proficiency are at higher risk for making errors in administering medications to children in their care. Recommended strategies to reduce home medication errors relate to provider prescribing practices; health literacy-informed verbal counseling strategies (eg, teachback and showback) and written patient education materials (eg, pictographic information) for patients and/or caregivers across settings (inpatient, outpatient, emergency care, pharmacy); dosing-tool provision for liquid medication measurement; review of medication lists with patients and/or caregivers (medication reconciliation) that includes prescription and over-the-counter medications, as well as vitamins and supplements; leveraging the medical home; engaging adolescents and their adult caregivers; training of providers; safe disposal of medications; regulations related to medication dosing tools, labeling, packaging, and informational materials; use of electronic health records and other technologies; and research to identify novel ways to support safe home medication administration.
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Affiliation(s)
- H Shonna Yin
- Departments of Pediatrics and Population Health, Grossman School of Medicine, New York University, New York, New York
| | | | - Ian M Paul
- Departments of Pediatrics and Public Health Sciences, College of Medicine, Pennsylvania State University, Hershey, Pennsylvania
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Li G, Jackson C, Bielicki J, Ellis S, Hsia Y, Sharland M. Global sales of oral antibiotics formulated for children. Bull World Health Organ 2020; 98:458-466. [PMID: 32742031 PMCID: PMC7375212 DOI: 10.2471/blt.19.235309] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 04/02/2020] [Accepted: 04/03/2020] [Indexed: 12/19/2022] Open
Abstract
Objective To investigate international consumption patterns of child-appropriate oral formulations of antibiotics by formulation type, with a focus on dispersible tablets, using data from a global sales database. Method Antibiotic sales data for 2015 covering 74 countries and regional country groups were obtained from the MIDAS® pharmaceutical sales database, which includes samples of pharmacy wholesalers and retailers. The focus was on sales of child-appropriate oral formulations of Access antibiotics in the 2017 World Health Organization's WHO Model list of essential medicines for children. Sales volumes are expressed using a standard unit (i.e. one tablet, capsule, ampoule or vial or 5 mL of liquid). Sales were analysed by antibiotic, WHO region and antibiotic formulation. Findings Globally, 17.7 billion standard units of child-appropriate oral antibiotic formulations were sold in 2015, representing 24% of total antibiotic sales of 74.4 billion units (both oral and parenteral) in the database. The top five child-appropriate Access antibiotics by sales volume were amoxicillin, amoxicillin with clavulanic acid, trimethoprim-sulfamethoxazole, cefalexin and ampicillin. The proportion of the top five sold for use as a syrup varied between 42% and 99%. Dispersible tablets represented only 22% of all child-appropriate oral formulation sales and made up only 15% of sales of 10 selected Access antibiotics on the model list for children. Conclusion Globally most child-appropriate oral antibiotics were not sold as dispersible tablets in 2015, as recommended by WHO. There is a clear need for novel solid forms of antibiotics suitable for use in children.
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Affiliation(s)
- Grace Li
- Paediatric Infectious Diseases Research Group, Institute of Infection and Immunity, St George's, University of London, Cranmer Terrace, London, SW17 0QT, England
| | - Charlotte Jackson
- Paediatric Infectious Diseases Research Group, Institute of Infection and Immunity, St George's, University of London, Cranmer Terrace, London, SW17 0QT, England
| | - Julia Bielicki
- Paediatric Infectious Diseases Research Group, Institute of Infection and Immunity, St George's, University of London, Cranmer Terrace, London, SW17 0QT, England
| | - Sally Ellis
- Global Antibiotic Research & Development Partnership, Geneva, Switzerland
| | - Yingfen Hsia
- School of Pharmacy, Queen's University Belfast, Belfast, Northern Ireland
| | - Mike Sharland
- Paediatric Infectious Diseases Research Group, Institute of Infection and Immunity, St George's, University of London, Cranmer Terrace, London, SW17 0QT, England
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Pasipanodya B, Kuwengwa R, Prust ML, Stewart B, Chakanyuka C, Murimwa T, Brophy J, Salami O, Mushavi A, Apollo T. Assessing the adoption of lopinavir/ritonavir oral pellets for HIV-positive children in Zimbabwe. J Int AIDS Soc 2018; 21:e25214. [PMID: 30549217 PMCID: PMC6293134 DOI: 10.1002/jia2.25214] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Accepted: 11/05/2018] [Indexed: 11/23/2022] Open
Abstract
INTRODUCTION Heat-stable lopinavir/ritonavir (LPV/r) oral pellets were developed to overcome challenges with administration and storage experienced with previously available tablet and syrup forms of LPV/r prescribed to paediatric HIV patients. We report on the adoption of LPV/r pellets for infants living with HIV in the public sector antiretroviral therapy (ART) programme in Zimbabwe. METHODS Infants aged three months to three years who had been prescribed a LPV/r-based regimen (including ART-naïve patients) in fourteen facilities across the country were eligible to receive the pellets. Caregivers were counselled on the new formulation and provided with administration guides. A caregiver questionnaire was administered three to four months after the child initiated on pellets. Data were also extracted from patient ART records. RESULTS AND DISCUSSION One hundred and fifty-seven children were enrolled (median age: 21 months; interquartile range 11.8 to 29.4). Survey data from 74 caregivers were included for analysis. Eighty-one per cent of the caregivers preferred pellets while 19% preferred the syrup formulation. Eighty-nine per cent assessed their child's response to taking the pellets as good or very good. Overall, 46% did not report any challenges while 54% reported one or more challenges with using the pellets. Difficulties with administration included: poor taste (36%; 26 participants); swallowing pellets (16%; 12 participants); finishing the dose (14%; 10 participants); and opening the capsule (10%; seven participants). Caregivers who were not confident to instruct others on pellet administration were 5.64 (95% confidence interval 1.45 to 21.95, p = 0.013) times as likely to experience a challenge. CONCLUSIONS A large proportion of caregivers preferred pellets to other formulations of LPV/r and reported a good response to pellets; however, they also reported challenges with administration. Counselling should focus on ensuring that caregivers can confidently administer pellets and are able to instruct others, to ensure high uptake and good adherence to treatment. LPV/r pellets may be an acceptable substitute for other available forms of LPV/r for eligible children under three years if they are currently on or in need of LPV/r-containing regimens; however, challenges with administration still highlight the need for improved drug formulations for paediatric ART patients.
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Affiliation(s)
| | - Rudo Kuwengwa
- AIDS and TB UnitThe Ministry of Health and Child CareHarareZimbabwe
| | | | | | | | | | - Jason Brophy
- Clinton Health Access Initiative, Inc.BostonMAUSA
| | - Olawale Salami
- Drugs for Neglected Diseases – Africa Regional OfficeNairobiKenya
| | - Angela Mushavi
- AIDS and TB UnitThe Ministry of Health and Child CareHarareZimbabwe
| | - Tsitsi Apollo
- AIDS and TB UnitThe Ministry of Health and Child CareHarareZimbabwe
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Ranmal SR, O’Brien F, Lopez F, Ruiz F, Orlu M, Tuleu C, Walsh J, Liu F. Methodologies for assessing the acceptability of oral formulations among children and older adults: a systematic review. Drug Discov Today 2018; 23:830-847. [DOI: 10.1016/j.drudis.2018.01.038] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Revised: 12/07/2017] [Accepted: 01/15/2018] [Indexed: 11/29/2022]
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Walsh J, Ranmal SR, Ernest TB, Liu F. Patient acceptability, safety and access: A balancing act for selecting age-appropriate oral dosage forms for paediatric and geriatric populations. Int J Pharm 2018; 536:547-562. [DOI: 10.1016/j.ijpharm.2017.07.017] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 07/06/2017] [Accepted: 07/07/2017] [Indexed: 11/30/2022]
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Madathilethu J, Roberts M, Peak M, Blair J, Prescott R, Ford JL. Content uniformity of quartered hydrocortisone tablets in comparison with mini-tablets for paediatric dosing. BMJ Paediatr Open 2018; 2:e000198. [PMID: 29637186 PMCID: PMC5843003 DOI: 10.1136/bmjpo-2017-000198] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Revised: 11/27/2017] [Accepted: 11/29/2017] [Indexed: 11/30/2022] Open
Abstract
OBJECTIVES Children requiring cortisol replacement therapy are often prescribed hydrocortisone doses of 2.5 mg, but as this is commercially unavailable 10 mg tablets, with functional break lines, are split commonly in an attempt to deliver the correct dose. This study aimed to determine the dose variation obtained from quartered hydrocortisone tablets when different operators performed the splitting procedure and to ascertain whether better uniformity could be attained from mini-tablets as an alternative formulation. METHODS Hydrocortisone 10 mg tablets were quartered by four different operators using a standard pill splitter. Hydrocortisone 2.5 mg mini-tablets (3 mm diameter) were formulated using a wet granulation method and manufactured using a high-speed rotary press simulator. The weight and content uniformity of the quartered tablets and mini-tablets were assessed according to pharmacopoeial standards. The physical strength and dissolution profiles of the mini-tablets were also determined. RESULTS More than half of all quartered 10 mg tablets were outside of the ±10% of the stated US Pharmacopoeia hydrocortisone content (mean 2.34 mg, SD 0.36, coefficient of variation (CV) 15.18%) and more than 40% of the quartered tablets were outside the European Pharmacopoeia weight variation. Robust mini-tablets (tensile strengths of >4 MPa) were produced successfully. The mini-tablets passed the pharmacopoeial weight and content uniformity requirements (mean 2.54 mg, SD 0.04, CV 1.72%) and drug release criteria during in vitro dissolution testing. CONCLUSION This study confirmed that quartering 10 mg hydrocortisone tablets produces unacceptable dose variations and that it is feasible to produce 3 mm mini-tablets containing more accurate doses for paediatric patients.
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Affiliation(s)
- Jude Madathilethu
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK
| | - Matthew Roberts
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK
| | - Matthew Peak
- Paediatric Medicines Research Unit, Alder Hey Children's NHS Foundation Trust, Liverpool, UK
| | - Joanne Blair
- Paediatric Medicines Research Unit, Alder Hey Children's NHS Foundation Trust, Liverpool, UK
| | - Rebecca Prescott
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK
| | - James L Ford
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK
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Gray ME, Nieburg P, Dillingham R. Pediatric Human Immunodeficiency Virus Continuum of Care: A Concise Review of Evidence-Based Practice. Pediatr Clin North Am 2017; 64:879-891. [PMID: 28734516 PMCID: PMC5576578 DOI: 10.1016/j.pcl.2017.03.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Children and adolescents living with human immunodeficiency virus (HIV) represent a population that requires a unique approach to HIV care. Prevention, testing, initiation of antiretroviral therapy (ART), and retention and engagement in care are critical steps. Each step requires providers to address age-specific barriers, so that successful and prolonged viral suppression can occur. Adherence to ART, disclosure of HIV-positive status, and stigma are examples of struggles faced by youth, their families, and health care providers. A multifaceted approach and thoughtful transitions of care are needed, but with sustained ART, youth living with HIV can survive and thrive with the expectation of a normal lifespan.
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Affiliation(s)
- Megan E. Gray
- Division of Infectious Diseases and International Health. University of Virginia, Charlottesville, VA
| | - Phillip Nieburg
- Visiting Associate Professor of Pediatrics. University of Virginia, Charlottesville, VA
| | - Rebecca Dillingham
- Division of Infectious Diseases and International Health, University of Virginia, PO Box 801340, Charlottesville, VA 22908-1340, USA.
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Methodology Used to Assess Acceptability of Oral Pediatric Medicines: A Systematic Literature Search and Narrative Review. Paediatr Drugs 2017; 19:223-233. [PMID: 28413843 DOI: 10.1007/s40272-017-0223-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
BACKGROUND Regulatory guidelines require that any new medicine designed for a pediatric population must be demonstrated as being acceptable to that population. There is currently no guidance on how to conduct or report on acceptability testing. AIM Our objective was to undertake a review of the methods used to assess the acceptability of medicines within a pediatric population and use this review to propose the most appropriate methodology. METHODS We used a defined search strategy to identify literature reports of acceptability assessments of medicines conducted within pediatric populations and extracted information about the tools used in these studies for comparison across studies. RESULTS In total, 61 articles were included in the analysis. Palatability was the most common (54/61) attribute measured when evaluating acceptability. Simple scale methods were most commonly used, with visual analog scales (VAS) and hedonic scales used both separately and in combination in 34 of the 61 studies. Hedonic scales alone were used in 14 studies and VAS alone in just five studies. Other tools included Likert scales; forced choice or preference; surveys or questionnaires; observations of facial expressions during administration, ease of swallowing, or ability to swallow the dosage; prevalence of complaints or refusal to take the medicine; and time taken for a nurse to administer the medicine. CONCLUSIONS The best scale in terms of validity, reliability, feasibility, and preference to use when assessing acceptability remains unclear. Further work is required to select the most appropriate method to justify whether a medicine is acceptable to a pediatric population.
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Age-appropriate and acceptable paediatric dosage forms: Insights into end-user perceptions, preferences and practices from the Children's Acceptability of Oral Formulations (CALF) Study. Int J Pharm 2017; 514:296-307. [PMID: 27863675 DOI: 10.1016/j.ijpharm.2016.07.054] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2016] [Revised: 07/20/2016] [Accepted: 07/23/2016] [Indexed: 11/23/2022]
Abstract
A lack of evidence to guide the design of age-appropriate and acceptable dosage forms has been a longstanding knowledge gap in paediatric formulation development. The Children's Acceptability of Oral Formulations (CALF) study captured end-user perceptions and practices with a focus on solid oral dosage forms, namely tablets, capsules, chewables, orodispersibles, multiparticulates (administered with food) and mini-tablets (administered directly into the mouth). A rigorous development and testing phase produced age-adapted questionnaires as measurement tools with strong evidence of validity and reliability. Overall, 590 school children and adolescents, and 428 adult caregivers were surveyed across hospitals and various community settings. Attitudes towards dosage forms primarily differed based on age and prior use. Positive attitudes to tablets and capsules increased with age until around 14 years. Preference was seen for chewable and orodispersible preparations across ages, while multiparticulates were seemingly less favourable. Overall, 59.6% of school children reported willingness to take 10mm diameter tablets, although only 32.1% of caregivers perceived this size to be suitable. While not to be taken as prescriptive guidance, the results of this study provide some evidence towards rational dosage form design, as well as methodological approaches to help design tools for further evaluation of acceptability within paediatric studies.
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Mistry P, Batchelor H. Evidence of acceptability of oral paediatric medicines: a review. ACTA ACUST UNITED AC 2016; 69:361-376. [PMID: 27524471 DOI: 10.1111/jphp.12610] [Citation(s) in RCA: 99] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Accepted: 07/05/2016] [Indexed: 11/29/2022]
Abstract
OBJECTIVES The aim of this review was to map the currently available evidence on acceptability of oral paediatric medicines to aid in the selection of suitable platform formulations for the development of new acceptable paediatric products. METHODS This process used a defined search strategy of indexed publications and included methods to assess the quality of the evidence retrieved. KEY FINDINGS Taste/palatability was the most extensively studied area of paediatric medicine acceptability yet standard methods or criteria that define what is classed as acceptable to children is still to be defined. There have been many reports on the acceptability of medicines to paediatric populations yet major gaps in the acceptability knowledge base exist including the shape and dimensions of tablets, minitablets and capsules swallowed whole in infants and children; size and overall volume of multiparticulates; volume of liquids completely swallowed in infants and children; duration of retention within the oral cavity, size and taste of orodispersible tablets, lozenges and chewable tablets and the number of solid units dosed at each time point. CONCLUSIONS The review highlights where further information is required to support knowledge around acceptability of age-appropriate medicines. An algorithm to aid in selection of a formulation that is likely to be acceptable based on the age range to be treated by the medicine is presented as a result of this review.
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Affiliation(s)
- Punam Mistry
- Pharmacy and Therapeutics, Institute of Clinical Sciences, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, UK
| | - Hannah Batchelor
- Pharmacy and Therapeutics, Institute of Clinical Sciences, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, UK
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Abstract
BACKGROUND Antiretroviral therapy (ART) adherence is critical for successful HIV treatment outcomes. Once-daily dosing could improve adherence. Plasma concentrations of once-daily vs twice-daily abacavir + lamivudine are bioequivalent in children, but no randomized trial has compared virological outcomes. METHODS Children taking abacavir + lamivudine-containing first-line regimens twice daily for more than 36 weeks in the ARROW trial (NCT02028676, ISRCTN24791884) were randomized to continue twice-daily vs move to once-daily abacavir + lamivudine (open-label). Co-primary outcomes were viral load suppression at week 48 (12% noninferiority margin, measured retrospectively) and lamivudine or abacavir-related grade 3/4 adverse events. RESULTS Six hundred and sixty-nine children (median 5 years, range 1-16) were randomized to twice daily (n = 333) vs once daily (n = 336) after median 1.8 years on twice-daily abacavir + lamivudine-containing first-line ART. Children were followed for median 114 weeks. At week 48, 242/331 (73%) twice daily vs 236/330 (72%) once daily had viral load less than 80 copies/ml [difference -1.6% (95% confidence interval -8.4,+5.2%) P = 0.65]; 79% twice daily vs 78% once daily had viral load less than 400 copies/ml (P = 0.76) (week 96 results similar). One grade 3/4 adverse event was judged uncertainly related to abacavir + lamivudine (hepatitis; once daily). At week 48, 9% twice daily vs 10% once daily reported missing one or more ART pills in the last 4 weeks (P = 0.74) and 8 vs 8% at week 96 (P = 0.90). Carers strongly preferred once-daily dosing. There was no difference between randomized groups in postbaseline drug-resistance mutations or drug-susceptibility; WHO 3/4 events; ART-modifying, grade 3/4 or serious adverse events; CD4% or weight-for-age/height-for-age (all P > 0.15). CONCLUSION Once-daily abacavir + lamivudine was noninferior to twice daily in viral load suppression, with similar resistance, adherence, clinical, immunological and safety outcomes. Abacavir + lamivudine provides the first once-daily nucleoside backbone across childhood that can be used to simplify ART.
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Schlatter AF, Deathe AR, Vreeman RC. The Need for Pediatric Formulations to Treat Children with HIV. AIDS Res Treat 2016; 2016:1654938. [PMID: 27413548 PMCID: PMC4927993 DOI: 10.1155/2016/1654938] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Accepted: 05/25/2016] [Indexed: 11/17/2022] Open
Abstract
Over 3.2 million children worldwide are infected with HIV, but only 24% of these children receive antiretroviral therapy (ART). ART adherence among children is a crucial part of managing human-immunodeficiency virus (HIV) infection and extending the life and health of infected children. Important causes of poor adherence are formulation- and regimen-specific properties, including poor palatability, large pill burden, short dosing intervals, and the complex storage and transportation of drugs. This review aims to summarize the various regimen- and formulation-based barriers to ART adherence among children to support the need for new and innovative pediatric formulations for antiretroviral therapy (ART). Detailing the arguments both for and against investing in the development of pediatric HIV medications, as well as highlighting recent advances in pediatric ART formulation research, provides a synopsis of the current data related to pediatric ART formulations and adherence.
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Affiliation(s)
- Adrienne F. Schlatter
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Academic Model Providing Access to Healthcare (AMPATH), Eldoret 30100, Kenya
| | - Andrew R. Deathe
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Academic Model Providing Access to Healthcare (AMPATH), Eldoret 30100, Kenya
| | - Rachel C. Vreeman
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Academic Model Providing Access to Healthcare (AMPATH), Eldoret 30100, Kenya
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Shawahna R. Pediatric Biopharmaceutical Classification System: Using Age-Appropriate Initial Gastric Volume. AAPS J 2016; 18:728-36. [PMID: 26935428 PMCID: PMC5256604 DOI: 10.1208/s12248-016-9885-2] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Accepted: 02/01/2016] [Indexed: 01/22/2023] Open
Abstract
Development of optimized pediatric formulations for oral administration can be challenging, time consuming, and financially intensive process. Since its inception, the biopharmaceutical classification system (BCS) has facilitated the development of oral drug formulations destined for adults. At least theoretically, the BCS principles are applied also to pediatrics. A comprehensive age-appropriate BCS has not been fully developed. The objective of this work was to provisionally classify oral drugs listed on the latest World Health Organization's Essential Medicines List for Children into an age-appropriate BCS. A total of 38 orally administered drugs were included in this classification. Dose numbers were calculated using age-appropriate initial gastric volume for neonates, 6-month-old infants, and children aging 1 year through adulthood. Using age-appropriate initial gastric volume and British National Formulary age-specific dosing recommendations in the calculation of dose numbers, the solubility classes shifted from low to high in pediatric subpopulations of 12 years and older for amoxicillin, 5 years, 12 years and older for cephalexin, 9 years and older for chloramphenicol, 3-4 years, 9-11 and 15 years and older for diazepam, 18 years and older (adult) for doxycycline and erythromycin, 8 years and older for phenobarbital, 10 years and older for prednisolone, and 15 years and older for trimethoprim. Pediatric biopharmaceutics are not fully understood where several knowledge gaps have been recently emphasized. The current biowaiver criteria are not suitable for safe application in all pediatric populations.
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Affiliation(s)
- Ramzi Shawahna
- Department of Physiology, Pharmacology and Toxicology, Faculty of Medicine & Health Sciences, An-Najah National University, New Campus, Building: 19, Office: 1340, P.O. Box 7, Nablus, Palestine.
- An-Najah BioSciences Unit, Center for Poison Control, Chemical and Biological Analyses, An-Najah National University, Nablus, Palestine.
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Kekitiinwa A, Musiime V, Thomason MJ, Mirembe G, Lallemant M, Nakalanzi S, Baptiste D, Walker AS, Gibb DM, Judd A. Acceptability of lopinavir/r pellets (minitabs), tablets and syrups in HIV-infected children. Antivir Ther 2016; 21:579-585. [PMID: 27128199 DOI: 10.3851/imp3054] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/13/2016] [Indexed: 10/21/2022]
Abstract
BACKGROUND Lopinavir/ritonavir 'pellets' were recently tentatively approved for licensing. We describe their acceptability for infants and children up to 48 weeks. METHODS CHAPAS-2 was a randomized, two-period crossover trial comparing syrup and pellets in HIV-infected infants (n=19, group A, aged 3-<12 months) and children (n=26, group B, 1-<4 years) and tablets and pellets in older children (n=32, group C, 4-<13 years) from two clinics ('JCRC', 'PIDC') in Uganda. At week 8, all groups chose which formulation to continue. Acceptability data were collected at weeks 0, 4, 8, 12 and 48. RESULTS For groups A and B overall, the proportion preferring pellets increased between week 0 and week 12 and decreased at week 48 (group A 37%, 72%, 44%; group B 12%, 64% and 36%, respectively), although there were marked differences between clinics. For group C, pellets were progressively less preferred to tablets over time: 41%, 19% and 13% at weeks 0, 12 and 48, respectively. During follow-up unpleasant taste was similarly reported among young children taking pellets and syrups (37%/43% group A; 29%/26% group B), whereas among older children, pellets tasted worse than tablets (40%/2%). No participants reported problems with storage/transportation for pellets (0%/0%) unlike syrups (23%/13%). CONCLUSIONS For children <4 years, pellets were more acceptable at week 12 but not week 48. Clinic differences could reflect bias among health-care workers for different formulations. Pellets taste similar to syrup, are easier to store and transport than syrup and represent an alternative formulation for young children unable to swallow tablets; improvements in taste and support for health-care workers may help sustain acceptability.
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Affiliation(s)
- Adeodata Kekitiinwa
- Department of Pediatrics and Adolescent Health, Baylor College of Medicine Children's Foundation Uganda, Paediatric Infectious Diseases Clinic, Mulago Hospital Kampala, Kampala, Uganda
| | - Victor Musiime
- Department of Paediatrics, Joint Clinical Research Centre, Kampala, Uganda.,Department of Paediatrics and Child Health, Makerere University College of Health Sciences, Kampala, Uganda
| | - Margaret J Thomason
- Medical Research Council Clinical Trials Unit, University College London, London, UK
| | - Grace Mirembe
- Department of Paediatrics, Joint Clinical Research Centre, Kampala, Uganda
| | - Marc Lallemant
- HCV and Paediatric HIV Program, Drugs for Neglected Diseases initiative, Geneva, Switzerland
| | - Sarah Nakalanzi
- Department of Pediatrics and Adolescent Health, Baylor College of Medicine Children's Foundation Uganda, Paediatric Infectious Diseases Clinic, Mulago Hospital Kampala, Kampala, Uganda
| | - David Baptiste
- Medical Research Council Clinical Trials Unit, University College London, London, UK
| | - A Sarah Walker
- Medical Research Council Clinical Trials Unit, University College London, London, UK
| | - Diana M Gibb
- Medical Research Council Clinical Trials Unit, University College London, London, UK
| | - Ali Judd
- Medical Research Council Clinical Trials Unit, University College London, London, UK
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Mulenga V, Musiime V, Kekitiinwa A, Cook AD, Abongomera G, Kenny J, Chabala C, Mirembe G, Asiimwe A, Owen-Powell E, Burger D, McIlleron H, Klein N, Chintu C, Thomason MJ, Kityo C, Walker AS, Gibb DM. Abacavir, zidovudine, or stavudine as paediatric tablets for African HIV-infected children (CHAPAS-3): an open-label, parallel-group, randomised controlled trial. THE LANCET. INFECTIOUS DISEASES 2015; 16:169-79. [PMID: 26481928 PMCID: PMC4726762 DOI: 10.1016/s1473-3099(15)00319-9] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 09/01/2015] [Accepted: 09/03/2015] [Indexed: 11/15/2022]
Abstract
Background WHO 2013 guidelines recommend universal treatment for HIV-infected children younger than 5 years. No paediatric trials have compared nucleoside reverse-transcriptase inhibitors (NRTIs) in first-line antiretroviral therapy (ART) in Africa, where most HIV-infected children live. We aimed to compare stavudine, zidovudine, or abacavir as dual or triple fixed-dose-combination paediatric tablets with lamivudine and nevirapine or efavirenz. Methods In this open-label, parallel-group, randomised trial (CHAPAS-3), we enrolled children from one centre in Zambia and three in Uganda who were previously untreated (ART naive) or on stavudine for more than 2 years with viral load less than 50 copies per mL (ART experienced). Computer-generated randomisation tables were incorporated securely within the database. The primary endpoint was grade 2–4 clinical or grade 3/4 laboratory adverse events. Analysis was intention to treat. This trial is registered with the ISRCTN Registry number, 69078957. Findings Between Nov 8, 2010, and Dec 28, 2011, 480 children were randomised: 156 to stavudine, 159 to zidovudine, and 165 to abacavir. After two were excluded due to randomisation error, 156 children were analysed in the stavudine group, 158 in the zidovudine group, and 164 in the abacavir group, and followed for median 2·3 years (5% lost to follow-up). 365 (76%) were ART naive (median age 2·6 years vs 6·2 years in ART experienced). 917 grade 2–4 clinical or grade 3/4 laboratory adverse events (835 clinical [634 grade 2]; 40 laboratory) occurred in 104 (67%) children on stavudine, 103 (65%) on zidovudine, and 105 (64%), on abacavir (p=0·63; zidovudine vs stavudine: hazard ratio [HR] 0·99 [95% CI 0·75–1·29]; abacavir vs stavudine: HR 0·88 [0·67–1·15]). At 48 weeks, 98 (85%), 81 (80%) and 95 (81%) ART-naive children in the stavudine, zidovudine, and abacavir groups, respectively, had viral load less than 400 copies per mL (p=0·58); most ART-experienced children maintained suppression (p=1·00). Interpretation All NRTIs had low toxicity and good clinical, immunological, and virological responses. Clinical and subclinical lipodystrophy was not noted in those younger than 5 years and anaemia was no more frequent with zidovudine than with the other drugs. Absence of hypersensitivity reactions, superior resistance profile and once-daily dosing favours abacavir for African children, supporting WHO 2013 guidelines. Funding European Developing Countries Clinical Trials Partnership.
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Affiliation(s)
- Veronica Mulenga
- Department of Paediatrics, University Teaching Hospital, Lusaka, Zambia
| | | | | | - Adrian D Cook
- Medical Research Council Clinical Trials Unit at University College London, London, UK
| | | | - Julia Kenny
- Institute of Child Health, University College London, London, UK
| | - Chisala Chabala
- Department of Paediatrics, University Teaching Hospital, Lusaka, Zambia
| | | | | | - Ellen Owen-Powell
- Medical Research Council Clinical Trials Unit at University College London, London, UK
| | - David Burger
- Department of Pharmacy, Radboud University Nijmegen Medical Centre, Nijmegen, Netherlands
| | - Helen McIlleron
- Division of Clinical Pharmacology, Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Nigel Klein
- Institute of Child Health, University College London, London, UK
| | - Chifumbe Chintu
- Department of Paediatrics, University Teaching Hospital, Lusaka, Zambia
| | - Margaret J Thomason
- Medical Research Council Clinical Trials Unit at University College London, London, UK
| | - Cissy Kityo
- Joint Clinical Research Centre, Kampala, Uganda
| | - A Sarah Walker
- Medical Research Council Clinical Trials Unit at University College London, London, UK.
| | - Diana M Gibb
- Medical Research Council Clinical Trials Unit at University College London, London, UK.
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Patient-centred pharmaceutical design to improve acceptability of medicines: similarities and differences in paediatric and geriatric populations. Drugs 2015; 74:1871-1889. [PMID: 25274536 PMCID: PMC4210646 DOI: 10.1007/s40265-014-0297-2] [Citation(s) in RCA: 152] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Patient acceptability of a medicinal product is a key aspect in the development and prescribing of medicines. Children and older adults differ in many aspects from the other age subsets of population and require particular considerations in medication acceptability. This review highlights the similarities and differences in these two age groups in relation to factors affecting acceptability of medicines. New and conventional formulations of medicines are considered regarding their appropriateness for use in children and older people. Aspects of a formulation that impact acceptability in these patient groups are discussed, including, for example, taste/smell/viscosity of a liquid and size/shape of a tablet. A better understanding of the acceptability of existing formulations highlights opportunities for the development of new and more acceptable medicines and facilitates safe and effective prescribing for the young and older populations.
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Single-dose nevirapine exposure does not affect response to antiretroviral therapy in HIV-infected African children aged below 3 years. AIDS 2015; 29:1623-1632. [PMID: 26193705 DOI: 10.1097/qad.0000000000000749] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVES To assess the impact of exposure to single-dose nevirapine (sdNVP) on virological response in young Ugandan/Zimbabwean children (<3 years) initiating antiretroviral therapy (ART), and to investigate other predictors of response. DESIGN Observational analysis within the ARROW randomized trial. METHODS sdNVP exposure was ascertained by the caregiver's self-report when the child initiated non-nucleoside reverse transcriptase inhibitor (NNRTI)-based ART. Viral load was assayed retrospectively over a median 4.1 years of follow-up. Multivariable logistic regression models were used to identify independent predictors of viral load below 80 copies/ml, 48 and 144 weeks after ART initiation (backwards elimination, exit P = 0.1). RESULTS Median (IQR) age at ART initiation was 17 (10-23) months in 78 sdNVP-exposed children vs. 21 (14-27) months in 289 non-exposed children (36 vs. 20% <12 months). At week 48, 49 of 73 (67%) sdNVP-exposed and 154 of 272 (57%) non-exposed children had viral load below 80 copies/ml [adjusted odds ratio (aOR) 2.34 (1.26-4.34), P = 0.007]; 79 and 77% had viral load below 400 copies/ml. Suppression was significantly lower in males (P = 0.009), those with higher pre-ART viral load (P = 0.001), taking syrups (P = 0.05) and with lower self-reported adherence (P = 0.04). At week 144, 55 of 73 (75%) exposed and 188 of 272 (69%) non-exposed children had less than 80 copies/ml [aOR 1.75 (0.93-3.29), P = 0.08]. There was no difference between children with and without previous sdNVP exposure in intermediate/high-level resistance to NRTIs (P > 0.3) or NNRTIs (P > 0.1) (n = 88) at week 144. CONCLUSION Given the limited global availability of lopinavir/ritonavir, its significant formulation challenges in young children, and the significant paediatric treatment gap, tablet fixed-dose-combination NVP-based ART remains a good alternative to syrup lopinavir-based ART for children, particularly those over 1 year and even if exposed to sdNVP.
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Pouplin T, Phuong PN, Toi PV, Nguyen Pouplin J, Farrar J. Isoniazid, pyrazinamide and rifampicin content variation in split fixed-dose combination tablets. PLoS One 2014; 9:e102047. [PMID: 25004128 PMCID: PMC4086978 DOI: 10.1371/journal.pone.0102047] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Accepted: 06/15/2014] [Indexed: 11/18/2022] Open
Abstract
Setting In most developing countries, paediatric tuberculosis is treated with split tablets leading to potential inaccuracy in the dose delivery and drug exposure. There is no data on the quality of first-line drugs content in split fixed-dose combination tablets. Objective To determine Isoniazid, Pyrazinamide and Rifampicin content uniformity in split FDC tablets used in the treatment of childhood tuberculosis. Design Drug contents of 15 whole tablets, 30 half tablets and 36 third tablets were analysed by high performance liquid chromatography. The content uniformity was assessed by comparing drug content measured in split portions with their expected amounts and the quality of split portions was assessed applying qualitative specifications for whole tablets. Results All whole tablets measurements fell into the USP proxy for the three drugs. But a significant number of half and third portions was found outside the tolerated variation range and the split formulation failed the requirements for content uniformity. To correct for the inaccuracy of splitting the tablets into equal portions, a weight-adjustment strategy was used but this did not improve the findings. Conclusion In split tablets the content of the three drugs is non-uniform and exceeded the USP recommendations. There is an absolute need to make child-friendly formulations available for the treatment of childhood tuberculosis.
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Affiliation(s)
- Thomas Pouplin
- Mahidol University-Oxford Tropical Medicine Research Programme, Faculty of Tropical Medicine, Mahidol University, Rajthevee, Bangkok, Thailand
- Centre for Tropical Medicine, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
- * E-mail:
| | - Pham Nguyen Phuong
- Mahidol University-Oxford Tropical Medicine Research Programme, Faculty of Tropical Medicine, Mahidol University, Rajthevee, Bangkok, Thailand
| | - Pham Van Toi
- Mahidol University-Oxford Tropical Medicine Research Programme, Faculty of Tropical Medicine, Mahidol University, Rajthevee, Bangkok, Thailand
| | - Julie Nguyen Pouplin
- Mahidol University-Oxford Tropical Medicine Research Programme, Faculty of Tropical Medicine, Mahidol University, Rajthevee, Bangkok, Thailand
| | - Jeremy Farrar
- Centre for Tropical Medicine, Oxford University Clinical Research Unit Vietnam, Wellcome Trust Major Overseas Programme, Ho Chi Minh City, Vietnam
- Centre for Tropical Medicine, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
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Bastiaans DET, Cressey TR, Vromans H, Burger DM. The role of formulation on the pharmacokinetics of antiretroviral drugs. Expert Opin Drug Metab Toxicol 2014; 10:1019-37. [DOI: 10.1517/17425255.2014.925879] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Ali AA, Charoo NA, Abdallah DB. Pediatric drug development: formulation considerations. Drug Dev Ind Pharm 2014; 40:1283-99. [DOI: 10.3109/03639045.2013.850713] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Abstract
Children with the human immunodeficiency virus (HIV) have a higher probability of hard and soft oral tissue diseases because of their compromised immune systems and socioeconomic factors such as poor access to medical and dental care and limited availability of fluoridated water or toothpaste. To improve health outcomes and help monitor the progression of HIV, a preventive, child-specific oral health protocol for children with HIV that is easy to use and appropriate for all different resource settings should be established. Further, both medical and dental health practitioners should incorporate such a protocol into their care routine for HIV-infected children. Using proactive oral health risk assessments complemented by scheduled follow-up visits based on individual risk determination can prevent opportunistic infection, track the HIV disease trajectory, and monitor the effectiveness of highly active antiretroviral therapy (HAART) while improving the quality of life and longevity of children living with HIV.
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Affiliation(s)
- Francisco J Ramos-Gomez
- UCLA School of Dentistry, 10833 Le Conte Avenue, Box 951668, CHS Room 23-020B, Los Angeles, CA 90095-1668, USA.
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Abstract
OBJECTIVES Young children metabolize nevirapine faster than older children/adults. We evaluated nevirapine pharmacokinetics with or without dose-escalation in Zambian, HIV-infected infants/children and its relationship with safety/efficacy. DESIGN A retrospective pharmacokinetic substudy of the CHAPAS-1 trial. METHODS HIV-infected, Zambian children were randomized to initiate antiretroviral therapy (ART) with full-dose twice-daily nevirapine versus 2-week nevirapine dose-escalation. Samples taken 3-4 h postmorning-dose 2 weeks after nevirapine initiation were assayed for nevirapine levels. Viral load was measured on available samples at weeks 4 and 48; adverse events were prospectively reported. RESULTS Of 162 (77%) children with week-2 samples, 79 (49%) were randomized to nevirapine dose-escalation. At ART initiation, median [interquartile range (IQR)] age, weight and CD4% were 5.2 (1.5-8.7) years, 13.0 (8.1-19.0) kg and 13 (8-18)%, respectively; 81 (50%) were male. With full dose, few children aged less than 2 years (3/23, 13%) or more than 2 years (4/60, 7%) had subtherapeutic nevirapine levels (defined as <3.0 mg/l), but with dose-escalation, seven out of 22 (32%) aged less than 2 years versus seven out of 57 (12%) more than 2 years had subtherapeutic nevirapine levels (P=0.05). There was no difference between week-2 nevirapine levels in those with viral load more than 250 versus less than 250 copies/ml at week 4 (P=0.97) or week 48 (P=0.40). Eleven out of 162 children had grade 1/2 rash; all were more than 2 years of age (P=0.04), and 10 were randomized to full dose. CONCLUSION Subtherapeutic nevirapine levels 3-4 h postdose were more frequent in young children on dose-escalation. Younger children were at lower risk for rash. To simplify ART initiation and reduce the risk of suboptimal dosing, full-dose nevirapine at ART initiation should be considered for African HIV-infected children less than 2 years of age.
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Fitzgerald F, Penazzato M, Gibb D. Development of antiretroviral resistance in children with HIV in low- and middle-income countries. J Infect Dis 2013; 207 Suppl 2:S85-92. [PMID: 23687294 PMCID: PMC3657118 DOI: 10.1093/infdis/jit115] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
With antiretroviral therapy (ART) recommended by the World Health Organization (WHO) for children aged <2 years with human immunodeficiency virus (HIV) and continuing global ART roll-out, ART coverage in children is rising. However ART coverage in children lags considerably behind that in adults (28% vs 58%). Long duration of therapy needed for HIV-infected children requires maximal efficacy, minimal toxicity, and prevention of development of drug resistance. This requires consideration of ways to improve sequencing of regimens during childhood to minimize development of resistance and treatment failure. We consider aspects of virological failure and development of resistance in vertically HIV-infected children in resource-limited settings. We review evidence guiding choices of first- and second-line ART, the impact of drugs given to prevent mother-to-child transmission, adherence issues and, availability of appropriate drug formulations. Recommendations made during the Collaborative HIV and Anti-HIV Drug Resistance Network (CHAIN)/WHO meeting (October 2012) are summarized.
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Design, Evaluation, and Dissemination of a Plastic Syringe Clip to Improve Dosing Accuracy of Liquid Medications. Ann Biomed Eng 2013; 41:1860-8. [DOI: 10.1007/s10439-013-0780-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2012] [Accepted: 02/15/2013] [Indexed: 10/27/2022]
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Adams LV, Craig SR, Mmbaga EJ, Naburi H, Lahey T, Nutt CT, Kisenge R, Noel GJ, Spielberg SP. Children's medicines in Tanzania: a national survey of administration practices and preferences. PLoS One 2013; 8:e58303. [PMID: 23484012 PMCID: PMC3590153 DOI: 10.1371/journal.pone.0058303] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2012] [Accepted: 02/01/2013] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE The dearth of age-appropriate formulations of many medicines for children poses a major challenge to pediatric therapeutic practice, adherence, and health care delivery worldwide. We provide information on current administration practices of pediatric medicines and describe key stakeholder preferences for new formulation characteristics. PATIENTS AND METHODS We surveyed children aged 6-12 years, parents/caregivers over age 18 with children under age 12, and healthcare workers in 10 regions of Tanzania to determine current pediatric medicine prescription and administration practices as well as preferences for new formulations. Analyses were stratified by setting, pediatric age group, parent/caregiver education, and healthcare worker cadre. RESULTS Complete data were available for 206 children, 202 parents/caregivers, and 202 healthcare workers. Swallowing oral solid dosage forms whole or crushing/dissolving them and mixing with water were the two most frequently reported methods of administration. Children frequently reported disliking medication taste, and many had vomited doses. Healthcare workers reported medicine availability most significantly influences prescribing practices. Most parents/caregivers and children prefer sweet-tasting medicine. Parents/caregivers and healthcare workers prefer oral liquid dosage forms for young children, and had similar thresholds for the maximum number of oral solid dosage forms children at different ages can take. CONCLUSIONS There are many impediments to acceptable and accurate administration of medicines to children. Current practices are associated with poor tolerability and the potential for under- or over-dosing. Children, parents/caregivers, and healthcare workers in Tanzania have clear preferences for tastes and formulations, which should inform the development, manufacturing, and marketing of pediatric medications for resource-limited settings.
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Affiliation(s)
- Lisa V Adams
- Audrey and Theodor Geisel School of Medicine at Dartmouth, Hanover, New Hampshire, USA.
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Bertagnolio S, De Luca A, Vitoria M, Essajee S, Penazzato M, Hong SY, McClure C, Duncombe C, Jordan MR. Determinants of HIV drug resistance and public health implications in low- and middle-income countries. Antivir Ther 2012; 17:941-53. [DOI: 10.3851/imp2320] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/23/2012] [Indexed: 10/28/2022]
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