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Briciu C, Leucuța D, Popa A, Latiș A, Pop TL, Tomuță I, Man SC, Lazăr C, Voștinaru S, Iurian S. Acceptability of compounded preparations - A Romanian pediatric hospital perspective. Eur J Pharm Biopharm 2024; 202:114383. [PMID: 38936783 DOI: 10.1016/j.ejpb.2024.114383] [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: 02/06/2024] [Revised: 06/20/2024] [Accepted: 06/24/2024] [Indexed: 06/29/2024]
Abstract
Compounded medicines are widely used, especially for pediatric patients. The aim of this study was to evaluate children's acceptability of compounded preparations and to provide information regarding compounding practices' characteristics in a Romanian hospital setting. An observational, cross-sectional, and retrospective study was conducted in three Clinical Pediatric Departments (Emergency Clinical Hospital for Children, Cluj-Napoca). The study population comprised patients under 18 years old taking at least one compounded medication. Study data was collected mainly through an interviewer-administered questionnaire and medicine acceptability was assessed based on the children's first reaction to the preparations using a 3-point facial hedonic scale. A total of 162 compounded medications were evaluated. A positive/negative reaction was reported for 20.83%/58.33%, 20.63%/49.21%, and 66.67%/7.41% of oral, oromucosal and cutaneous dosage forms. Although patient disapproval was recorded for various reasons, medication administration was successful in over 75% of cases. Factors such as fewer steps required for intake of a dose, capsule dosage form, no additional food/drink immediately after drug intake, medication perceived as "easy/very easy" to swallow, were correlated with a better acceptability of oral preparations. This study highlights the importance of identifying factors that can improve the acceptability of compounded preparations and, subsequently, treatment outcomes in pediatric patients.
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Affiliation(s)
- Corina Briciu
- "Iuliu Hațieganu" University of Medicine and Pharmacy, Faculty of Pharmacy, Department of Clinical Pharmacy, Cluj-Napoca, Romania
| | - Daniel Leucuța
- "Iuliu Hațieganu" University of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Informatics and Biostatistics, Cluj-Napoca, Romania
| | - Adina Popa
- "Iuliu Hațieganu" University of Medicine and Pharmacy, Faculty of Pharmacy, Department of Clinical Pharmacy, Cluj-Napoca, Romania.
| | - Ana Latiș
- Emergency Clinical Hospital for Children, Cluj-Napoca, Romania
| | - Tudor Lucian Pop
- Emergency Clinical Hospital for Children, Cluj-Napoca, Romania; "Iuliu Hațieganu" University of Medicine and Pharmacy, Faculty of Medicine, Second Pediatric Discipline, Mother and Child Department, Cluj-Napoca, Romania
| | - Ioan Tomuță
- "Iuliu Hațieganu" University of Medicine and Pharmacy, Faculty of Pharmacy, Department of Pharmaceutical Technology and Biopharmacy, Cluj-Napoca, Romania
| | - Sorin Claudiu Man
- Emergency Clinical Hospital for Children, Cluj-Napoca, Romania; "Iuliu Hațieganu" University of Medicine and Pharmacy, Faculty of Medicine, Third Pediatric Discipline, Mother and Child Department, Cluj-Napoca, Romania
| | - Călin Lazăr
- Emergency Clinical Hospital for Children, Cluj-Napoca, Romania; "Iuliu Hațieganu" University of Medicine and Pharmacy, Faculty of Medicine, First Pediatric Discipline, Mother and Child Department, Cluj-Napoca, Romania
| | | | - Sonia Iurian
- "Iuliu Hațieganu" University of Medicine and Pharmacy, Faculty of Pharmacy, Department of Pharmaceutical Technology and Biopharmacy, Cluj-Napoca, Romania
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Cavelier M, Hervouët C, Varin R, Gondé H. Devices for securing and administering pediatric compounded oral liquids: survey results from French university hospitals. Eur J Pediatr 2024:10.1007/s00431-024-05547-x. [PMID: 38573361 DOI: 10.1007/s00431-024-05547-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 03/25/2024] [Accepted: 03/27/2024] [Indexed: 04/05/2024]
Abstract
Oral liquid forms, either commercial or compounded, are preferred in pediatrics due to their suitability for weight-based dosing and acceptability for children. The choice of dosing delivery devices associated with oral liquid forms is important to ensure accurate dosing, ease of administration, and patient safety. Given the prevalence of compounding in pediatric settings, this study aimed to investigate the practices among French university hospitals concerning the selection of dosing delivery devices associated with compounding oral liquid forms for children. An online survey was distributed to pharmacists involved in compounding in French university hospitals. The survey covered aspects such as the presence of child-resistant caps, types of dosing devices, the presence of bottle adapters, and the type of bottle adapters used. Among the 36 hospital pharmacies contacted, 24 responded to the survey. One pharmacy employed child-resistant caps for compounded liquid forms. Enteral syringes emerged as the primary dosing device (71%), with a minority using luer/luer-lock syringes (21%). Spoon and measuring cup usage was reported by none. Approximately two-thirds of the pharmacies (67%) used a bottle adapter in conjunction with the sampling device. Conclusion: The study highlighted diversity in the practices of French university hospitals regarding dosing delivery devices associated with compounding oral liquid forms for pediatric patients. The findings underscored the need for standardized guidelines to streamline practices and enhance safety and precision in compounded medication administration for children. What is Known: • Administration devices are important to ensure the correct administration of the required dose of oral liquids in pediatrics. • For compounded oral liquid forms, the selection and supply of administration devices are managed by compounding pharmacies from those available on the market. What is New: • The study highlighted the variability of administration devices associated with compounded liquids for oral use in French hospital pharmacies.
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Affiliation(s)
- Marine Cavelier
- Department of Pharmacy, CHU Rouen, Normandie University, UNIROUEN, EA7510 ESCAPE, F-76000, Rouen, France.
| | | | - Rémi Varin
- Department of Pharmacy, CHU Rouen, Normandie University, UNIROUEN, U1234, F-76000, Rouen, France
| | - Henri Gondé
- Department of Pharmacy, CHU Rouen, Normandie University, UNIROUEN, U1234, F-76000, Rouen, France
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3
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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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Barbieri E, Minotti C, Cavagnis S, Giaquinto C, Cappello B, Penazzato M, Lallemant M. Paediatric medicine issues and gaps from healthcare workers point of view: survey results and a narrative review from the global accelerator for paediatric formulations project. Front Pharmacol 2023; 14:1200848. [PMID: 37529704 PMCID: PMC10390094 DOI: 10.3389/fphar.2023.1200848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 06/29/2023] [Indexed: 08/03/2023] Open
Abstract
The WHO Model List of Essential Medicines for Children (EMLc) has not been systematically revised in the last few years. We conducted a survey addressed to healthcare professionals prescribing, preparing, or administering medicines to children and a narrative review to identify problematic paediatric formulations or missing medicines in all therapeutic fields to inform the review of the EMLc in 2023. A total of 285 physicians (63%), 28 nurses (6%) and 142 pharmacists (31%), mostly working in the hospital setting, reported at least one problematic medicine. 290 medicines were reported as missing (completely or the child-appropriate formulation). The top three most mentioned were ciprofloxacin together with phenobarbital and omeprazole. 387 medicines were reported as problematic (34% were oral liquid formulations, 34% tablets, 18% parenteral preparations. Mostly of the products were antibacterials (27%), cardiovascular medicines (11%) and antivirals (11%). The obtained responses show the perspective of healthcare workers working around the world, particularly in the European region (25%), in the African region (24%), and in the Region of the Americas (19%), with limited representation from Northern Africa and the Middle East. Our results need to be analysed with the outputs of other ongoing works before specific products can enter the WHO-hosted Global Accelerator for Paediatric formulations network prioritisation process. Efforts to develop appropriate formulations for children should be accelerated so that the uncertainties associated with off-label drug preparation and use are minimised, and therapeutic benefits are optimised.
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Affiliation(s)
- Elisa Barbieri
- Division of Pediatric Infectious Diseases, Department of Women’s and Children’s Health, University of Padova, Padova, Italy
- Penta—Child Health Research, Padova, Italy
| | - Chiara Minotti
- Division of Pediatric Infectious Diseases, Department of Women’s and Children’s Health, University of Padova, Padova, Italy
| | | | - Carlo Giaquinto
- Division of Pediatric Infectious Diseases, Department of Women’s and Children’s Health, University of Padova, Padova, Italy
- Penta—Child Health Research, Padova, Italy
| | - Bernadette Cappello
- Department of Health Products Policy and Standards, World Health Organization, Geneva, Switzerland
| | - Martina Penazzato
- WHO Research for Health Department, World Health Organization, Geneva, Switzerland
| | - Marc Lallemant
- Penta—Child Health Research, Padova, Italy
- Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand
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5
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Krisdiyanto, Bin Raja Ghazilla RA, Azuddin M, Bin Ahmad Hairuddin MKF, Muflikhun MA, Risdiana N, Afifuddin E. The hypodermic syringe performance based on the ISO 7886-1:2017: A narrative review. Medicine (Baltimore) 2022; 101:e31812. [PMID: 36626504 PMCID: PMC9750608 DOI: 10.1097/md.0000000000031812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
A syringe is used to inject fluid or medicine into the patient's soft tissue. The main components of the syringe were the needle, barrel, and plunger. The use of syringes in the medical world is relatively high, and especially since the COVID-19 pandemic, the use of hypodermic syringes increased sharply due to vaccination. The syringe used must be effective and of good quality, so the International Organization for Standardization (ISO) has published test procedures and minimum specifications for hypodermic syringes. The performance of the syringe can be observed from the dead space, force piston operation, water and air leakage, and fitting position of the plunger in the barrel. This review shows that most researchers use the weighing method to measure the dead space, although some use other methods. The researchers found that most of the products met the minimum specifications of the ISO, and that the dimensions and shape of the syringe affected the dead space. Researchers have not examined other performance measures recommended by the ISO. Researchers have focused more on force injection than force piston operation, leakage after injection or back spray than air and water leakage, and reduction the friction of the plunger without considering the fitting position of the plunger in the barrel.
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Affiliation(s)
- Krisdiyanto
- CPDM, Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysia
- Mechanical Engineering Department, Faculty of Engineering, Universitas Muhammadiyah Yogyakarta, Yogyakarta, Indonesia
| | | | - M. Azuddin
- CPDM, Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysia
| | | | - Muhammad Akhsin Muflikhun
- Mechanical and Industrial Engineering Department, Faculty of Engineering, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Nurvita Risdiana
- Department of Mental Health Nursing, School of Nursing, Universitas Muhammadiyah Yogyakarta, Yogyakarta, Indonesia
| | - Eki Afifuddin
- Mechanical and Industrial Engineering Department, Faculty of Engineering, Universitas Gadjah Mada, Yogyakarta, Indonesia
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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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Walsh J, Schaufelberger D, Iurian S, Klein S, Batchelor H, Turner R, Gizurarson S, Boltri L, Alessandrini E, Tuleu C. Path towards efficient paediatric formulation development based on partnering with clinical pharmacologists and clinicians, a conect4children expert group white paper. Br J Clin Pharmacol 2021; 88:5034-5051. [PMID: 34265091 DOI: 10.1111/bcp.14989] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 06/10/2021] [Accepted: 07/07/2021] [Indexed: 12/18/2022] Open
Abstract
Improved global access to novel age-appropriate formulations for paediatric subsets, either of new chemical entities or existing drugs, is a priority to ensure that medicines meet the needs of these patients. However, despite regulatory incentives, the introduction to the market of paediatric formulations still lags behind adult products. This is mainly caused by additional complexities associated with the development of acceptable age-appropriate paediatric medicines. This position paper recommends the use of a paediatric Quality Target Product Profile as an efficient tool to facilitate early planning and decision making across all teams involved in paediatric formulation development during the children-centric formulation design for new chemical entities, or to repurpose/reformulate off-patent drugs. Essential key attributes of a paediatric formulation are suggested and described. Moreover, greater collaboration between formulation experts and clinical colleagues, including healthcare professionals, is advocated to lead to safe and effective, age-appropriate medicinal products. Acceptability testing should be a secondary endpoint in paediatric clinical trials to ensure postmarketing adherence is not compromised by a lack of acceptability. Not knowing the indications and the related age groups and potential dosing regimens early enough is still a major hurdle for efficient paediatric formulation development; however, the proposed paediatric Quality Target Product Profile could be a valuable collaborative tool for planning and decision making to expedite paediatric product development, particularly for those with limited experience in developing a paediatric product.
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Affiliation(s)
- Jennifer Walsh
- BioCity Nottingham, Jenny Walsh Consulting Ltd, Nottingham, UK
| | - Daniel Schaufelberger
- School of Medicine, All Children's Hospital, Schaufelberger Consulting LLC and Johns Hopkins University, St. Petersburg, FL, USA
| | - Sonia Iurian
- Department of Pharmaceutical Technology and Biopharmacy, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Sandra Klein
- Department of Pharmacy, Institute of Biopharmaceutics and Pharmaceutical Technology, University of Greifswald, Greifswald, Germany
| | - Hannah Batchelor
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, UK
| | - Roy Turner
- Idorsia Pharmaceuticals Ltd, Allschwil, Switzerland
| | - Sveinbjörn Gizurarson
- Faculty of Pharmaceutical Sciences, University of Iceland, Reykjavik, Iceland; and Pharmacy Department, Kamuzu University of Health Sciences, Blantyre, Malawi
| | - Luigi Boltri
- Pharmaceutical Development, Adare Pharmaceuticals, Milan, Italy
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8
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Pediatric formulation development - Challenges of today and strategies for tomorrow: Summary report from M-CERSI workshop 2019. Eur J Pharm Biopharm 2021; 164:54-65. [PMID: 33878432 DOI: 10.1016/j.ejpb.2021.04.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 11/04/2020] [Accepted: 04/12/2021] [Indexed: 01/18/2023]
Abstract
A workshop on "Pediatric Formulation Development: Challenges of Today and Strategies for Tomorrow" was organized jointly by the University of Maryland's Center of Excellence in Regulatory Science and Innovation (M-CERSI), the U.S. Food and Drug Administration (FDA) and the International Consortium for Innovation and Quality in Pharmaceutical Development (IQ) Drug Product Pediatric Working Group (PWG). This multi-disciplinary, pediatric focused workshop was held over a two-day period (18-19 Jun 2019) and consisted of participants from industry, regulatory agencies, academia and other organizations from both US and Europe. The workshop consisted of sequential sessions on formulation, analytical, clinical, and regulatory and industry lessons learned and future landscape. Each session began with a series of short framing presentations, followed by facilitated breakout sessions and panel discussion. The formulation session was dedicated to three main topics pertaining to drug product acceptability, excipients in pediatrics and oral administration device considerations. The analytical session discussed key considerations for dosing vehicle selection and analytical strategies for testing of different dosage forms, specifically mini-tablets (multiparticulates). The clinical session highlighted the influence of pediatric pharmacokinetics prediction on formulation design, pediatric drug development strategies and clinical considerations to support pediatric formulation design. The regulatory and industry lessons learned and future landscape session explored the regional differences that exist in regulatory expectations, requirements for pediatric formulation development, and key patient-centric factors to consider when developing novel pediatric formulations. This session also discussed potential collaboration opportunities and tools for pediatric formulation development. This manuscript summarizes the key discussions and outcomes of all the sessions in the workshop with a broadened review and discussion of the topics that were covered.
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Ouranidis A, Tsiaxerli A, Vardaka E, Markopoulou CK, Zacharis CK, Nicolaou I, Hatzichristou D, Haidich AB, Kostomitsopoulos N, Kachrimanis K. Sildenafil 4.0-Integrated Synthetic Chemistry, Formulation and Analytical Strategies Effecting Immense Therapeutic and Societal Impact in the Fourth Industrial Era. Pharmaceuticals (Basel) 2021; 14:365. [PMID: 33920975 PMCID: PMC8071249 DOI: 10.3390/ph14040365] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 04/08/2021] [Accepted: 04/09/2021] [Indexed: 12/14/2022] Open
Abstract
Sildenafil is a potent selective, reversible inhibitor of phosphodiesterase type 5 (PDE5) approved for the treatment of erectile dysfunction and pulmonary arterial hypertension. Whilst twenty years have passed since its original approval by the US Food and Drug Administration (USFDA), sildenafil enters the fourth industrial era catalyzing the treatment advances against erectile dysfunction and pulmonary hypertension. The plethora of detailed clinical data accumulated and the two sildenafil analogues marketed, namely tadalafil and vardenafil, signify the relevant therapeutic and commercial achievements. The pharmacokinetic and pharmacodynamic behavior of the drug appears complex, interdependent and of critical importance whereas the treatment of special population cohorts is considered. The diversity of the available formulation strategies and their compatible administration routes, extend from tablets to bolus suspensions and from per os to intravenous, respectively, inheriting the associated strengths and weaknesses. In this comprehensive review, we attempt to elucidate the multi-disciplinary elements spanning the knowledge fields of chemical synthesis, physicochemical properties, pharmacology, clinical applications, biopharmaceutical profile, formulation approaches for different routes of administration and analytical strategies, currently employed to guide the development of sildenafil-based compositions.
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Affiliation(s)
- Andreas Ouranidis
- Department of Pharmaceutical Technology, School of Pharmacy, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.T.); (E.V.)
- Department of Chemical Engineering, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Anastasia Tsiaxerli
- Department of Pharmaceutical Technology, School of Pharmacy, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.T.); (E.V.)
| | - Elisavet Vardaka
- Department of Pharmaceutical Technology, School of Pharmacy, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.T.); (E.V.)
| | - Catherine K. Markopoulou
- Laboratory of Pharmaceutical Analysis, Department of Pharmaceutical Technology, School of Pharmacy, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (C.K.M.); (C.K.Z.)
| | - Constantinos K. Zacharis
- Laboratory of Pharmaceutical Analysis, Department of Pharmaceutical Technology, School of Pharmacy, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (C.K.M.); (C.K.Z.)
| | - Ioannis Nicolaou
- Laboratory of Pharmaceutical Chemistry, Department of Pharmaceutical Chemistry, School of Pharmacy, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - Dimitris Hatzichristou
- Department of Urology, Medical School, Aristotle University of Thessaloniki, 54635 Thessaloniki, Greece;
| | - Anna-Bettina Haidich
- Department of Hygiene, Social-Preventive Medicine and Medical Statistics, Medical School, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - Nikolaos Kostomitsopoulos
- Center of Clinical, Experimental Surgery and Translational Research, Biomedical Research Foundation of the Academy of Athens, 11527 Athens, Greece;
| | - Kyriakos Kachrimanis
- Department of Pharmaceutical Technology, School of Pharmacy, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.T.); (E.V.)
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10
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Tuleu C, Hughes DA, Clapham D, Vallet T, Ruiz F. Acceptability of generic versus innovator oral medicines: not only a matter of taste. Drug Discov Today 2020; 26:329-343. [PMID: 33217597 DOI: 10.1016/j.drudis.2020.11.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 09/22/2020] [Accepted: 11/06/2020] [Indexed: 12/13/2022]
Abstract
Optimum use of generic products would require equivalence, not only in terms of quality, safety, and efficacy in clinical studies, but also patient acceptability to not jeopardize treatment success because of non-adherence which would de facto limit the potential cost saving anticipated by their use. Although acceptability is a requirement for the authorization of pediatric innovator products, a survey of European Union (EU) regulatory authorities showed that few have a formal process for assessing patient acceptability of generic products during the registration processes. The current International Council for Harmonisation of Technical Requirements for Pharmaceuticals for Human Use (ICH) focus on unifying guidance for the development and scrutiny of generics but should include acceptability alongside the other factors being considered for harmonization.
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Affiliation(s)
| | - Dyfrig A Hughes
- Centre for Health Economics and Medicines Evaluation, Bangor University, Bangor, UK
| | - David Clapham
- Independent Pharmaceutical Consultant, Bishops Stortford, UK.
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