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Pachocki J, Verter F. Polish regulatory system regarding ATMP hospital exemptions. Front Immunol 2024; 15:1379134. [PMID: 38803487 PMCID: PMC11128580 DOI: 10.3389/fimmu.2024.1379134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 04/16/2024] [Indexed: 05/29/2024] Open
Abstract
Introduction This article explains the current regulatory system in Poland regarding Advanced Therapy Medicinal Products given under Hospital Exemptions (ATMP-HE). Methods The relevant sections of Polish legislation are translated into English and their interaction is described. Results We analyze the impact of these regulations from the perspective of three stakeholder groups: manufacturers, physicians, and patients. Amendments enacted between 2018 and 2023 have substantially changed Polish implementation of the ATMP-HE pathway. In Poland, most ATMP-HE treatments have been therapies employing Mesenchymal Stromal Cells (MSC). Discussion Comparison to other European countries shows that Poland is within the mainstream of EU practices regarding ATMP-HE implementation. One notable issue is that Poland has relatively low per capita spending on healthcare, and ATMP-HE in Poland must be funded from outside the government healthcare system. Conclusions. The original intention of the legislation that created ATMP-HE was to allow access to experimental therapies for patients with unmet needs. It remains to be seen if that mission can be fulfilled amidst conflicting pressures from various stakeholder groups.
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Affiliation(s)
| | - Frances Verter
- Parent’s Guide to Cord Blood Foundation, Brookeville, MD, United States
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2
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Olesti E, Nuevo Y, Bachiller M, Guillen E, Bascuas J, Varea S, Saez-Peñataro J, Calvo G. Academic challenges on advanced therapy medicinal products' development: a regulatory perspective. Cytotherapy 2024; 26:221-230. [PMID: 38260921 DOI: 10.1016/j.jcyt.2023.12.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 11/27/2023] [Accepted: 12/18/2023] [Indexed: 01/24/2024]
Abstract
Advanced therapy medicinal products (ATMPs) are becoming the new kid on the block for the treatment of a variety of indications with promising results. Despite the academic contribution to the basic and clinical research of ATMPs, undertaking a full product development process is extraordinarily challenging and demanding for academic institutions. Meeting regulatory requirements is probably the most challenging aspect of academic development, considering the limited experience and resources compared with pharmaceutical companies. This review aims to outline the key aspects to be considered when developing novel ATMPs from an academic perspective, based on the results of our own experience and interaction with the Spanish Agency of Medicines and Medical Devices (AEMPS) and European Medicine Agency (EMA) related to a number of academic ATMP initiatives carried out at our center during the last 5 years. Emphasis is placed on understanding the regulatory requirements during the early phases of the drug development process, particularly for the preparation of a Clinical Trial Application. Academic centers usually lack expertise in product-related documentation (such as the Investigational Medicinal Product Dossier), and therefore, early interaction with regulators is crucial to understand their requirements and receive guidance to comply with them. Insights are shared on managing quality, nonclinical, clinical, and risk and benefit documentation, based on our own experience and challenges. This review aims to empower academic and clinical settings by providing crucial regulatory knowledge to smooth the regulatory journey of ATMPs.
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Affiliation(s)
- Eulalia Olesti
- Department of Clinical Pharmacology, Area Medicament, Hospital Clinic of Barcelona, Barcelona, Spain; Clinical Pharmacology, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Pharmacology Unit, University of Barcelona, Barcelona, Spain.
| | - Yoana Nuevo
- Innovation Office and National Scientific Advice Unit, Spanish Agency of Medicines and Medical Devices (AEMPS)
| | - Mireia Bachiller
- Department of Clinical Pharmacology, Area Medicament, Hospital Clinic of Barcelona, Barcelona, Spain; Clinical Pharmacology, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Elena Guillen
- Department of Clinical Pharmacology, Area Medicament, Hospital Clinic of Barcelona, Barcelona, Spain; Clinical Pharmacology, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Juan Bascuas
- Department of Clinical Pharmacology, Area Medicament, Hospital Clinic of Barcelona, Barcelona, Spain; Clinical Pharmacology, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Sara Varea
- Department of Clinical Pharmacology, Area Medicament, Hospital Clinic of Barcelona, Barcelona, Spain; Clinical Pharmacology, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Joaquín Saez-Peñataro
- Department of Clinical Pharmacology, Area Medicament, Hospital Clinic of Barcelona, Barcelona, Spain; Clinical Pharmacology, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Pharmacology Unit, University of Barcelona, Barcelona, Spain
| | - Gonzalo Calvo
- Department of Clinical Pharmacology, Area Medicament, Hospital Clinic of Barcelona, Barcelona, Spain; Clinical Pharmacology, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.
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Delgadillo J, Kerkelä E, Waters A, Akker EVD, Lechanteur C, Baudoux E, Gardiner N, De Vos J, Vives J. A management model in blood, tissue and cell establishments to ensure rapid and sustainable patient access to advanced therapy medicinal products in Europe. Cytotherapy 2023; 25:1259-1264. [PMID: 37737767 DOI: 10.1016/j.jcyt.2023.08.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 08/02/2023] [Accepted: 08/02/2023] [Indexed: 09/23/2023]
Abstract
Blood, tissue and cell establishments (BTCs) stand out in the management of donor selection, procurement and processing of all types of substances of human origin (SoHO). In the last decades, the framework created around BTCs, including hospitals and national health system networks, and their links to research, development and innovation organizations and agencies have spurred their involvement in the study of groundbreaking advanced therapy medicinal products (ATMP). To further improve strategic synergies in the development of ATMPs, it will be required to promote intra- and inter-European collaborations by creating an international network involving BTCs and major stakeholders (i.e., research organizations, hospitals, universities, patient associations, public agencies). This vision is already shared with the European Blood Alliance, the association of non-profit blood establishments, with 26 member states throughout the European Union and European Free Trade Association states. Herein we present and analyze the "BTC for ATMP Development And Manufacture" (BADAM) model, an ethically responsible business model based on the values and missions of BTCs and their commitment to health equity, patient access and education (based on voluntary donation of SoHO to address unmet clinical needs, while contributing to training professionals and scientific literacy of our Society).
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Affiliation(s)
- Joaquín Delgadillo
- Banc de Sang i Teixits (BST), Edifici Dr. Frederic Duran i Jordà, Barcelona, Spain; Transfusion Medicine Group, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona, Barcelona, Spain.
| | - Erja Kerkelä
- Finnish Red Cross Blood Service, Vantaa, Finland
| | - Allison Waters
- Irish Blood Transfusion Service, National Blood Centre, Dublin, Ireland
| | - Emile van den Akker
- Department of Hematopoiesis and Sanquin Research, Landsteiner Laboratory, Department of Molecular Hematology, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Chantal Lechanteur
- University of Liège, Laboratory of Cell and Gene Therapy LTCG, Liège, Belgium
| | - Etienne Baudoux
- University of Liège, Laboratory of Cell and Gene Therapy LTCG, Liège, Belgium
| | - Nicola Gardiner
- Cryobiology Laboratory Stem Cell Facility, St. James's Hospital, Dublin, Ireland
| | - John De Vos
- Département d'ingénierie Cellulaire et Tissulaire, Unité de Thérapie Cellulaire, Hôpital Saint-Eloi, Montpellier, France
| | - Joaquim Vives
- Banc de Sang i Teixits (BST), Edifici Dr. Frederic Duran i Jordà, Barcelona, Spain; Musculoskeletal Tissue Engineering Group, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona, Barcelona, Spain; Departament de Medicina, Universitat Autònoma de Barcelona, Barcelona, Spain.
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4
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Rejon-Parrilla JC, Espin J, Garner S, Kniazkov S, Epstein D. Pricing and reimbursement mechanisms for advanced therapy medicinal products in 20 countries. Front Pharmacol 2023; 14:1199500. [PMID: 38089054 PMCID: PMC10715052 DOI: 10.3389/fphar.2023.1199500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 11/06/2023] [Indexed: 02/12/2024] Open
Abstract
Introduction: Advanced Therapy Medicinal Products are a type of therapies that, in some cases, hold great potential for patients without an effective current therapeutic approach but they also present multiple challenges to payers. While there are many theoretical papers on pricing and reimbursement (P&R) options, original empirical research is very scarce. This paper aims to provide a comprehensive international review of regulatory and P&R decisions taken for all ATMPs with centralized European marketing authorization in March 2022. Methods: A survey was distributed in July 2022 to representatives of 46 countries. Results: Responses were received from 20 countries out of 46 (43.5%). 14 countries reimbursed at least one ATMP. Six countries in this survey reimbursed no ATMPs. Conclusion: Access to ATMPs is uneven across the countries included in this study. This arises from regulatory differences, commercial decisions by marketing authorization holders, and the divergent assessment processes and criteria applied by payers. Moving towards greater equality of access will require cooperation between countries and stakeholders, for example, through the WHO Regional Office for Europe's Access to Novel Medicines Platform.
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Affiliation(s)
- Juan Carlos Rejon-Parrilla
- Health Technology Assessment Area (AETSA), Andalusian Public Foundation Progress and Health (FPS), Seville, Spain
| | - Jaime Espin
- Andalusian School of Public Health, Granada, Spain
- Instituto de Investigación Biosanitaria ibs, Granada, Spain
- CIBER of Epidemiology and Public Health (CIBERESP), Madrid, Spain
- Cátedra de Economía de la Salud y Dirección de Organizaciones Sanitarias (Esalud2), Granada, Spain
| | - Sarah Garner
- World Health Organization Regional Office for Europe, Copenhagen, Denmark
| | - Stanislav Kniazkov
- World Health Organization Regional Office for Europe, Copenhagen, Denmark
| | - David Epstein
- Department of Applied Economics, University of Granada, Granada, Spain
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Li H, Xiong S, Masieri FF, Monika S, Lethaus B, Savkovic V. Mesenchymal Stem Cells Isolated from Equine Hair Follicles Using a Method of Air-Liquid Interface. Stem Cell Rev Rep 2023; 19:2943-2956. [PMID: 37733199 PMCID: PMC10661790 DOI: 10.1007/s12015-023-10619-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/28/2023] [Indexed: 09/22/2023]
Abstract
Equine mesenchymal stem cells (MSC) of various origins have been identified in horses, including MSCs from the bone marrow and adipose tissue. However, these stem cell sources are highly invasive in sampling, which thereby limits their clinical application in equine veterinary medicine. This study presents a novel method using an air-liquid interface to isolate stem cells from the hair follicle outer root sheath of the equine forehead skin. These stem cells cultured herewith showed high proliferation and asumed MSC phenotype by expressing MSC positive biomarkers (CD29, CD44 CD90) while not expressing negative markers (CD14, CD34 and CD45). They were capable of differentiating towards chondrogenic, osteogenic and adipogenic lineages, which was comparable with MSCs from adipose tissue. Due to their proliferative phenotype in vitro, MSC-like profile and differentiation capacities, we named them equine mesenchymal stem cells from the hair follicle outer root sheath (eMSCORS). eMSCORS present a promising alternative stem cell source for the equine veterinary medicine.
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Affiliation(s)
- Hanluo Li
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Hubei Provincial Key Laboratory of Industrial Microbiology, Sino-German Biomedical Center, Hubei University of Technology, Wuhan, 430068, Hubei Province, China
- Department of Cranial Maxillofacial Plastic Surgery, University Clinic Leipzig, 04103, Leipzig, Germany
| | - Shiwen Xiong
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Hubei Provincial Key Laboratory of Industrial Microbiology, Sino-German Biomedical Center, Hubei University of Technology, Wuhan, 430068, Hubei Province, China
| | | | - Seltenhammer Monika
- Institute of Livestock Sciences (NUWI), University of Natural Resources and Life Sciences, Vienna, Gregor-Mendel-Straße 33/II, A-1180, Vienna, Austria
| | - Bernd Lethaus
- Department of Cranial Maxillofacial Plastic Surgery, University Clinic Leipzig, 04103, Leipzig, Germany
| | - Vuk Savkovic
- Department of Cranial Maxillofacial Plastic Surgery, University Clinic Leipzig, 04103, Leipzig, Germany.
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Piemonti L, Scholz H, de Jongh D, Kerr-Conte J, van Apeldoorn A, Shaw JAM, Engelse MA, Bunnik E, Mühlemann M, Pal-Kutas K, Scott WE, Magalon J, Kugelmeier P, Berishvili E. The Relevance of Advanced Therapy Medicinal Products in the Field of Transplantation and the Need for Academic Research Access: Overcoming Bottlenecks and Claiming a New Time. Transpl Int 2023; 36:11633. [PMID: 37822447 PMCID: PMC10563816 DOI: 10.3389/ti.2023.11633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 09/12/2023] [Indexed: 10/13/2023]
Abstract
The field of transplantation has witnessed the emergence of Advanced Therapy Medicinal Products (ATMPs) as highly promising solutions to address the challenges associated with organ and tissue transplantation. ATMPs encompass gene therapy, cell therapy, and tissue-engineered products, hold immense potential for breakthroughs in overcoming the obstacles of rejection and the limited availability of donor organs. However, the development and academic research access to ATMPs face significant bottlenecks that hinder progress. This opinion paper emphasizes the importance of addressing bottlenecks in the development and academic research access to ATMPs by implementing several key strategies. These include the establishment of streamlined regulatory processes, securing increased funding for ATMP research, fostering collaborations and partnerships, setting up centralized ATMP facilities, and actively engaging with patient groups. Advocacy at the policy level is essential to provide support for the development and accessibility of ATMPs, thereby driving advancements in transplantation and enhancing patient outcomes. By adopting these strategies, the field of transplantation can pave the way for the introduction of innovative and efficacious ATMP therapies, while simultaneously fostering a nurturing environment for academic research.
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Affiliation(s)
- Lorenzo Piemonti
- Diabetes Research Institute, IRCCS Ospedale San Raffaele and Vita-Salute San Raffaele University, Milan, Italy
| | - Hanne Scholz
- Department of Transplant Medicine and Institute for Surgical Research, Oslo University Hospital, Oslo, Norway
| | - Dide de Jongh
- Department of Medical Ethics, Philosophy and History of Medicine, Erasmus MC, University Medical Centre Rotterdam, Rotterdam, Netherlands
- Department of Nephrology and Transplantation, Erasmus MC, University Medical Centre Rotterdam, Rotterdam, Netherlands
| | - Julie Kerr-Conte
- Université de Lille, INSERM, Campus Hospitalo-Universitaire de Lille, Institut Pasteur de Lille, U1190-EGID, Lille, France
| | - Aart van Apeldoorn
- Department CBITE, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht, Netherlands
| | - James A. M. Shaw
- Translational and Clinical Research Institute, The Medical School, Newcastle University, Newcastle upon Tyne, United Kingdom
| | | | - Eline Bunnik
- Department of Medical Ethics, Philosophy and History of Medicine, Erasmus MC, University Medical Centre Rotterdam, Rotterdam, Netherlands
| | | | | | - William E. Scott
- Translational and Clinical Research Institute, The Medical School, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Jérémy Magalon
- Laboratoire de Culture et Thérapie Cellulaire, Assistance Publique des Hôpitaux de Marseille, Marseille, France
- Vascular Research Center Marseille, INSERM UMRS 1076, Faculté de Pharmacie, Marseille, France
| | | | - Ekaterine Berishvili
- Laboratory of Tissue Engineering and Organ Regeneration, Department of Surgery, University of Geneva, Geneva, Switzerland
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Capelli C, Cuofano C, Pavoni C, Frigerio S, Lisini D, Nava S, Quaroni M, Colombo V, Galli F, Bezukladova S, Panina-Bordignon P, Gaipa G, Comoli P, Cossu G, Martino G, Biondi A, Introna M, Golay J. Potency assays and biomarkers for cell-based advanced therapy medicinal products. Front Immunol 2023; 14:1186224. [PMID: 37359560 PMCID: PMC10288881 DOI: 10.3389/fimmu.2023.1186224] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 05/24/2023] [Indexed: 06/28/2023] Open
Abstract
Advanced Therapy Medicinal Products (ATMPs) based on somatic cells expanded in vitro, with or without genetic modification, is a rapidly growing area of drug development, even more so following the marketing approval of several such products. ATMPs are produced according to Good Manufacturing Practice (GMP) in authorized laboratories. Potency assays are a fundamental aspect of the quality control of the end cell products and ideally could become useful biomarkers of efficacy in vivo. Here we summarize the state of the art with regard to potency assays used for the assessment of the quality of the major ATMPs used clinic settings. We also review the data available on biomarkers that may substitute more complex functional potency tests and predict the efficacy in vivo of these cell-based drugs.
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Affiliation(s)
- Chiara Capelli
- Center of Cellular Therapy "G. Lanzani", ASST Papa Giovanni XXIII, Bergamo, Italy
| | - Carolina Cuofano
- Center of Cellular Therapy "G. Lanzani", ASST Papa Giovanni XXIII, Bergamo, Italy
| | - Chiara Pavoni
- Center of Cellular Therapy "G. Lanzani", ASST Papa Giovanni XXIII, Bergamo, Italy
| | - Simona Frigerio
- Cell Therapy Production Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Daniela Lisini
- Cell Therapy Production Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Sara Nava
- Cell Therapy Production Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Michele Quaroni
- Laboratory of Cell and Gene Therapy Stefano Verri, ASST Monza Ospedale San Gerardo, Monza, Italy
| | - Valentina Colombo
- Laboratory of Cell and Gene Therapy Stefano Verri, ASST Monza Ospedale San Gerardo, Monza, Italy
| | - Francesco Galli
- Division of Cell Matrix Biology & Regenerative Medicine, Faculty of Biology, Medicine and Health (FBMH), University of Manchester, Manchester, United Kingdom
| | - Svetlana Bezukladova
- Università Vita-Salute San Raffaele, Milan, Italy
- IRCCS San Raffaele Hospital, Neuroimmunology Unit, Division of Neuroscience, Milan, Italy
| | - Paola Panina-Bordignon
- Università Vita-Salute San Raffaele, Milan, Italy
- IRCCS San Raffaele Hospital, Neuroimmunology Unit, Division of Neuroscience, Milan, Italy
| | - Giuseppe Gaipa
- Laboratory of Cell and Gene Therapy Stefano Verri, ASST Monza Ospedale San Gerardo, Monza, Italy
| | - Patrizia Comoli
- Pediatric Hematology/Oncology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Giulio Cossu
- Division of Cell Matrix Biology & Regenerative Medicine, Faculty of Biology, Medicine and Health (FBMH), University of Manchester, Manchester, United Kingdom
- Università Vita-Salute San Raffaele, Milan, Italy
| | - Gianvito Martino
- IRCCS San Raffaele Hospital, Neuroimmunology Unit, Division of Neuroscience, Milan, Italy
- Pediatric Hematology/Oncology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Andrea Biondi
- Department of Pediatrics, Fondazione IRCCS San Gerardo dei Tintori, Monza, Italy
- Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Martino Introna
- Center of Cellular Therapy "G. Lanzani", ASST Papa Giovanni XXIII, Bergamo, Italy
| | - Josée Golay
- Center of Cellular Therapy "G. Lanzani", ASST Papa Giovanni XXIII, Bergamo, Italy
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Burns JS. The Evolving Landscape of Potency Assays. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2023; 1420:165-189. [PMID: 37258790 DOI: 10.1007/978-3-031-30040-0_11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
There is a "goldilocks" aspect to potency assays. On the one hand, a comprehensive evaluation of the cell product with detailed quantitative measurement of the critical quality attribute/s of the desired biological activity is required. On the other hand, the potency assay benefits from simplification and lean approaches that avoid unnecessary complication and enhance robustness, to provide a reproducible and scalable product. There is a need to balance insightful knowledge of complex biological healing processes with straightforward manufacture of an advanced therapeutic medicinal product (ATMP) that can be administered in a trustworthy cost-effective manner. While earlier chapters within this book have highlighted numerous challenges facing the potency assay conundrum, this chapter offers a forward-looking perspective regarding the many recent advances concerning acellular products, cryopreservation, induced MSC, cell priming, nanotechnology, 3D culture, regulatory guidelines and evolving institutional roles, that are likely to facilitate potency assay development in the future.
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Affiliation(s)
- Jorge S Burns
- Department of Environmental and Prevention Sciences, University of Ferrara, Ferrara, Italy.
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Burns JS. The Art of Stem Cell-Based Therapy. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2023; 1420:1-12. [PMID: 37258780 DOI: 10.1007/978-3-031-30040-0_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Potency assays represent crucial experiments at the hub of the comprehensive complexity surrounding cell therapy. Moreover, numerous factors beyond biological and scientific considerations are involved in achieving successful potency assays that fulfil regulatory authority approval for a new advanced therapy medicinal product. Though this can mean a frustratingly long period of discovery and development, progress in cell therapy is nowadays proceeding remarkably quickly, assisted by the potency assay rigorously placing emphasis on the need to critically analyse the key factor/s responsible for the therapeutic mechanism of action. History has shown that it can take many decades for there to be an improved understanding of a mechanism of action. Yet the chasing of precise targets has revolutionised medicine, with no clearer example than approaches to viral pandemics. The centuries involved in the eradication of smallpox have paved the way for an unprecedented pace of vaccine development for the Covid-19 pandemic. Such extraordinary accomplishments foster encouragement that similarly for stem cell-based therapy, our scientific knowledge will continue to improve apace. This chapter focuses on the art of experimentation and discovery, introducing potency assay requisites and numerous factors that can influence potency assay outcomes. A comprehensive understanding of potency assays and their development can hasten the provision of new cell therapies to help resolve burdensome diseases of unmet medical need.
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Affiliation(s)
- Jorge S Burns
- Department of Environmental and Prevention Sciences, University of Ferrara, Ferrara, Italy.
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