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Spini A, Pellegrini G, Ingrasciotta Y, L'Abbate L, Bellitto C, Carollo M, Leoni O, Zanforlini M, Ancona D, Stella P, Cavazzana A, Scapin A, Lopes S, Belleudi V, Ledda S, Carta P, Rossi P, Ejlli L, Sapigni E, Puccini A, Spila Alegiani S, Massari M, Guarneri C, Gisondi P, Trifirò G. Switching patterns of biological drugs in patients with psoriasis and psoriatic arthritis: insight from the VALORE database network. Expert Opin Biol Ther 2024; 24:399-409. [PMID: 38767132 DOI: 10.1080/14712598.2024.2357381] [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: 02/21/2024] [Accepted: 05/15/2024] [Indexed: 05/22/2024]
Abstract
BACKGROUND Switch patterns among different biologics and from originators to biosimilars (and vice versa) can be complex in patients with psoriasis (PsO) and psoriatic arthritis (PsA). OBJECTIVE The aim of this study was to describe switching patterns of biological drugs in PsO/PsA patients and to explore predictors of multiple switches and switch-back. RESEARCH DESIGN AND METHODS A large-scale retrospective cohort study was conducted using the Italian VALORE database. Bio-naïve users treated for PsO/PsA during 2010-2022 were included. Time to switch/swap and predictors of multiple switches and switch-back were analyzed. RESULTS Thirty-thousand seven hundred bio-naïve users were included. At 3 and 5 years of follow-up, patients with at least one switch/swap were 37.1% and 47.8%, respectively. The median time to first switch/swap was significantly shorter (p< 0.001) for TNF-α inhibitors (2,068 days) than anti-IL (2,780 days). At 1 year of follow-up patients starting with IL-23 switched/swapped biological therapy less frequently than those with anti-IL-12/23 and anti-IL-17 (4.9% vs. 8.7% and 9.4%, respectively). Patients starting with anti-IL-12/23 reported a significantly lower risk of multiple switches and switch-back (0.74, 95% CI, 0.67-0.83; 0.58, 95% CI, 0.44-0.77, respectively) than those with TNF-α inhibitors. CONCLUSIONS Patients with PsO/PsA starting with TNF-α inhibitors switch/swap more rapidly and frequently than those with anti-IL, which are also associated with a reduced risk of multiple switches during follow-up.
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Affiliation(s)
- Andrea Spini
- Department of Diagnostics and Public Health, University of Verona, Verona, Italy
| | - Giorgia Pellegrini
- Department of Diagnostics and Public Health, University of Verona, Verona, Italy
| | - Ylenia Ingrasciotta
- Department of Diagnostics and Public Health, University of Verona, Verona, Italy
| | - Luca L'Abbate
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, Messina, Italy
| | - Chiara Bellitto
- Department of Diagnostics and Public Health, University of Verona, Verona, Italy
| | - Massimo Carollo
- Department of Diagnostics and Public Health, University of Verona, Verona, Italy
| | - Olivia Leoni
- Lombardy Regional Centre of Pharmacovigilance and Regional Epidemiologic Observatory, Milan, Italy
| | | | - Domenica Ancona
- Centro Regionale di Farmacovigilanza Regione Puglia, Bari, Italy
| | - Paolo Stella
- Centro Regionale di Farmacovigilanza Regione Puglia, Bari, Italy
| | | | | | - Sara Lopes
- Department of Epidemiology, Lazio Regional Health Service, Rome, Italy
| | - Valeria Belleudi
- Department of Epidemiology, Lazio Regional Health Service, Rome, Italy
| | | | - Paolo Carta
- Regione Autonoma della Sardegna, Cagliari, Italy
| | - Paola Rossi
- Friuli-Venezia Giulia Regional Center of Pharmacovigilance, Trieste, Italy
| | - Lucian Ejlli
- Friuli-Venezia Giulia Regional Center of Pharmacovigilance, Trieste, Italy
| | - Ester Sapigni
- Emilia-Romagna Regional Center of Pharmacovigilance, Bologna, Italy
| | - Aurora Puccini
- Emilia-Romagna Regional Center of Pharmacovigilance, Bologna, Italy
| | - Stefania Spila Alegiani
- Pharmacoepidemiology and Pharmacovigilance Unit, National Centre for Drug Research and Evaluation, Italian National Institute of Health (ISS), Rome, Italy
| | - Marco Massari
- Pharmacoepidemiology and Pharmacovigilance Unit, National Centre for Drug Research and Evaluation, Italian National Institute of Health (ISS), Rome, Italy
| | | | - Paolo Gisondi
- Department of Medicine, University of Verona, Verona, Italy
| | - Gianluca Trifirò
- Department of Diagnostics and Public Health, University of Verona, Verona, Italy
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Wirth K, Boes S, Näpflin M, Huber C, Blozik E. Initial prescriptions and medication switches of biological products: an analysis of prescription pathways and determinants in the Swiss healthcare setting. BMJ Open 2023; 13:e077454. [PMID: 37989386 PMCID: PMC10668177 DOI: 10.1136/bmjopen-2023-077454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 10/25/2023] [Indexed: 11/23/2023] Open
Abstract
OBJECTIVES Biological products have contributed to extraordinary advances in disease treatments over the last decade. However, the cost-saving potential of imitator products, so-called biosimilars, is still under-researched in Switzerland. This study aims to assess biosimilars' prescriptions at treatment initiation and their determinants, as well as biological therapy switches. DESIGN The study included all patients who had at least one biosimilar available on the market at the time when they were prescribed a biological product. We analysed longitudinal data for biosimilar prescriptions in Switzerland using descriptive statistics and logistic regression to quantify the associations with individual, pharmaceutical and provider-related variables. SETTING The analysis is based on de-identified claims data of patients with mandatory health insurance at Helsana, one of the Swiss health insurance companies with a substantial enrollee base in mandatory health insurance. PARTICIPANTS Overall, 18 953 patients receiving at least one biological product between 2016 and 2021 were identified. OUTCOME MEASURES We differentiated between initial prescriptions and follow-up prescriptions. Our regression focused on initial prescriptions due to evidence indicating that patients tend to follow the medication prescribed at therapy initiation. RESULTS Although biosimilars' market share was low (28.6%), the number of prescriptions has increased (from 1016 in 2016 to 6976 in 2021). Few patients with medication switches (n=1492, 8.5%) were detected. Increased relative price difference (difference in the price of available biosimilars relative to price of corresponding reference product) was associated with decreased probability of biosimilar prescriptions, whereas male sex, an increase of available imitator drugs on the market, larger packaging sizes, and prescriptions from specialists or physicians in outpatient settings were associated with increased biosimilar use. CONCLUSION The low number of biosimilar prescriptions, despite the proliferating biosimilar market, indicates a high potential for biosimilar diffusion. The findings indicate that patients typically adhere to the therapy options initially chosen and are less inclined to make changes following the initiation of treatment. Our research highlights the need for awareness initiatives to improve understanding among patients and physicians, enabling informed, shared decision-making about biosimilar prescriptions.
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Affiliation(s)
- Kevin Wirth
- Department of Health Sciences and Medicine, University of Lucerne, Luzern, Switzerland
- Department of Health Sciences, Helsana Group, Zurich, Switzerland
| | - Stefan Boes
- Department of Health Sciences and Medicine, University of Lucerne, Luzern, Switzerland
| | - Markus Näpflin
- Department of Health Sciences, Helsana Group, Zurich, Switzerland
| | - Carola Huber
- Department of Health Sciences, Helsana Group, Zurich, Switzerland
- Institute of Primary Care, University of Zurich, Zurich, Switzerland
| | - Eva Blozik
- Institute of Primary Care, University of Zurich, Zurich, Switzerland
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Niazi SK. No two classes of biosimilars: Urgent advice to the US Congress and the FDA. J Clin Pharm Ther 2022; 47:1352-1361. [PMID: 35869625 PMCID: PMC9796791 DOI: 10.1111/jcpt.13743] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 06/29/2022] [Indexed: 01/07/2023]
Abstract
WHAT IS KNOWN AND OBJECTIVE The United States is the only country with legislation to approve two classes of biosimilars. One has "no clinically meaningful difference" from the reference product, and when it is tested for switching and alternating, it can receive an interchangeable status. The objective of this review is to establish whether it is possible from the switching and alternating studies to evaluate additional safety or efficacy. METHODS Analysed published data to ascertain if the testing with switching and alternating provide additional proof of safety or efficacy. Political and scientific rationale of creating a new class of biosimilars and how this affects the confidence in biosimilars. RESULTS AND DISCUSSION There is no safety or efficacy concern when switching or alternating biosimilars with the reference product. Unfortunately, the rationale for interchangeability is more political than scientific, and it has brought more confusion and mistrust in using biosimilars in the United States. WHAT IS NEW AND CONCLUSION The US Congress is requested to remove the interchangeability clause from the Biological Price and Competition Act to enable faster acceptance of biosimilars and remove the threat of lack of confidence in the safety of biosimilars.
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Mysler E, Azevedo VF, Danese S, Alvarez D, Iikuni N, Ingram B, Mueller M, Peyrin-Biroulet L. Biosimilar-to-Biosimilar Switching: What is the Rationale and Current Experience? Drugs 2021; 81:1859-1879. [PMID: 34705255 PMCID: PMC8578069 DOI: 10.1007/s40265-021-01610-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/14/2021] [Indexed: 01/15/2023]
Abstract
Over time, clinicians have become increasingly comfortable embracing the prescription of biosimilars-highly similar versions of innovator or reference biological agents-for their patients with inflammatory diseases. Although a switch from a reference product to a licensed biosimilar version (or vice versa) is a medical decision robustly supported by the stepwise accumulation of clinical trial evidence concerning comparable safety, immunogenicity, and efficacy between these products, a switch from one biosimilar to another biosimilar of the same reference product, or a cross-switch, is not. Similarity among biosimilars of a reference product is not a regulatory agency concern and therefore is unlikely to be investigated in randomized controlled trials in the foreseeable future. Yet in clinical practice, across a diverse range of patients, the option to cross-switch from one biosimilar to another can and does arise for valid reasons such as convenience or tolerability issues, or driven by third parties (e.g., payers). In the absence of clinical trial data, clinicians must attempt to objectively evaluate the emerging real-world cross-switching evidence within the context of what is known about the science underpinning a designation of biosimilar. That knowledge then needs to be integrated with what clinicians know about their patients and their disease on a case-by-case basis. This review aims to consolidate relevant emerging real-world data and other key information about biosimilar-to-biosimilar cross-switching for prescribing clinicians. In the absence of clear clinical guidelines addressing this topic at present, this review may serve to facilitate discretionary and educated treatment decision making.
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Affiliation(s)
- Eduardo Mysler
- Organización Médica de Investigación, Buenos Aires, Argentina.
| | - Valderilio Feijó Azevedo
- Rheumatology Unit, Department of Internal Medicine, Federal University of Paraná, Curitiba, PR, Brazil
| | - Silvio Danese
- Gastroenterology and Endoscopy, IRCCS Ospedale San Raffaele and University Vita-Salute San Raffaele, Milan, Italy
| | | | | | | | | | - Laurent Peyrin-Biroulet
- Department of Gastroenterology and Inserm U1256 NGERE, University Hospital of Nancy, Lorraine University, Vandoeuvre-lès-Nancy, France
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Alvarez DF, Wolbink G, Cronenberger C, Orazem J, Kay J. Interchangeability of Biosimilars: What Level of Clinical Evidence is Needed to Support the Interchangeability Designation in the United States? BioDrugs 2021; 34:723-732. [PMID: 32990892 PMCID: PMC7669758 DOI: 10.1007/s40259-020-00446-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
A biosimilar is a biologic drug that is "highly similar to a reference (originator) product, with no clinically meaningful differences between the two products in safety, purity, and potency". Regulatory approval of a biosimilar is based on analytical, structural, and functional comparisons with the reference product, comparative nonclinical (in vivo) studies, clinical pharmacokinetics and/or pharmacodynamics, and immunogenicity. In addition, comparative clinical efficacy and safety assessments are usually conducted and, taken together, comprise the "totality of the evidence" supporting biosimilarity. For a biosimilar to meet the additional designation of interchangeability in the United States (US), the applicant must demonstrate that the biological drug can be expected to produce the "same clinical result as the reference product in any given patient" and "if the biological drug is administered more than once to an individual, the risk in terms of safety or diminished efficacy of alternating or switching between the use of the biological drug and the reference product is no greater than the risk of using the reference product without such alternation or switch". The challenges faced in conducting clinical studies to support a designation of interchangeability, as defined in the final interchangeability guidance from the US Food and Drug Administration, are considered. Potential alternative approaches to generating adequate and sufficient clinical data to support a designation of interchangeability are also presented.
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Affiliation(s)
- Daniel F Alvarez
- Inflammation and Immunology, Pfizer Inc, 500 Arcola Rd, Collegeville, PA, 19426, USA.
| | | | | | - John Orazem
- Global Biostatistics and Data Management, Pfizer Inc, New York, NY, USA
| | - Jonathan Kay
- Departments of Medicine and of Population and Quantitative Health Sciences, University of Massachusetts Medical School, Worcester, MA, USA.,Department of Medicine, UMass Memorial Medical Center, Worcester, MA, USA
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Sala V, Cnudde SJ, Murabito A, Massarotti A, Hirsch E, Ghigo A. Therapeutic peptides for the treatment of cystic fibrosis: Challenges and perspectives. Eur J Med Chem 2021; 213:113191. [PMID: 33493828 DOI: 10.1016/j.ejmech.2021.113191] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 12/21/2020] [Accepted: 01/08/2021] [Indexed: 02/07/2023]
Abstract
Cystic fibrosis (CF) is the most common amongst rare genetic diseases, affecting more than 70.000 people worldwide. CF is characterized by a dysfunctional chloride channel, termed cystic fibrosis conductance regulator (CFTR), which leads to the production of a thick and viscous mucus layer that clogs the lungs of CF patients and traps pathogens, leading to chronic infections and inflammation and, ultimately, lung damage. In recent years, the use of peptides for the treatment of respiratory diseases, including CF, has gained growing interest. Therapeutic peptides for CF include antimicrobial peptides, inhibitors of proteases, and modulators of ion channels, among others. Peptides display unique features that make them appealing candidates for clinical translation, like specificity of action, high efficacy, and low toxicity. Nevertheless, the intrinsic properties of peptides, together with the need of delivering these compounds locally, e.g. by inhalation, raise a number of concerns in the development of peptide therapeutics for CF lung disease. In this review, we discuss the challenges related to the use of peptides for the treatment of CF lung disease through inhalation, which include retention within mucus, proteolysis, immunogenicity and aggregation. Strategies for overcoming major shortcomings of peptide therapeutics will be presented, together with recent developments in peptide design and optimization, including computational analysis and high-throughput screening.
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Affiliation(s)
- Valentina Sala
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Torino, Via Nizza 52, 10126, Torino, Italy
| | - Sophie Julie Cnudde
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Torino, Via Nizza 52, 10126, Torino, Italy
| | - Alessandra Murabito
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Torino, Via Nizza 52, 10126, Torino, Italy
| | - Alberto Massarotti
- Department of Pharmaceutical Science, University of Piemonte Orientale "A. Avogadro", Largo Donegani 2, 28100, Novara, Italy
| | - Emilio Hirsch
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Torino, Via Nizza 52, 10126, Torino, Italy; Kither Biotech S.r.l., Via Nizza 52, 10126, Torino, Italy
| | - Alessandra Ghigo
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Torino, Via Nizza 52, 10126, Torino, Italy; Kither Biotech S.r.l., Via Nizza 52, 10126, Torino, Italy.
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Cappello B, Moja L, Figueras A, Magrini N. The "Square Box": Therapeutic Equivalence as a Foundation of the WHO Model List of Essential Medicines. Front Pharmacol 2020; 11:578000. [PMID: 33071791 PMCID: PMC7533616 DOI: 10.3389/fphar.2020.578000] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 08/26/2020] [Indexed: 12/02/2022] Open
Abstract
Every two years, the World Health Organization (WHO) updates its Model List of Essential Medicines, intended as a guide for countries to adopt or adapt in accordance with local priorities and treatment guidelines, for the development of national essential medicines lists. When more than one therapeutic option is available for a given indication, the WHO Model List often includes a single medicine as representative of a group of equivalent and interchangeable medicines. The representative medicine of that group is listed with an accompanying ‘square box’ symbol. The intended purpose of the square box is to highlight pharmacological classes or groups of medicines for which countries, institutions and health professionals can assume homogeneous therapeutic efficacy and safety and select the most appropriate single medicine based on price, local availability, and acceptability. Though this concept of therapeutic equivalence within a therapeutic class has been endorsed by most authoritative textbooks of pharmacology since Goodman & Gilman’s The Pharmacological Basis of Therapeutics and evidence-based guidelines, marketing forces have often made claims on individual drugs to distinguish them beyond relevant differences shown by reliable evidence: this has generated the concept of “me-too drugs” with its double meaning—i.e., market latecomers differing minimally from products preceding them and whose marketing budgets have significant opportunity costs, or medicines which may be useful to substitute for equivalent products in the event of shortages. The square box concept is applied in the context of a comprehensive list: therapeutic equivalence or interchangeability cannot always be easily established. Different interpretations have been applied to different groups of medicines over the 40+ year history of the Model List. This paper presents the concept of the square box, provides key examples and guidance on how square box listings should be practically interpreted in the development and implementation of national essential medicine lists, considers the applicability of a square box listing concept to biologic medicines and proposes that an updated review of the square box concept and listings is warranted.
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Affiliation(s)
- Bernadette Cappello
- Department of Health Products Policy and Standards, World Health Organization, Geneva, Switzerland
| | - Lorenzo Moja
- Department of Health Products Policy and Standards, World Health Organization, Geneva, Switzerland
| | - Albert Figueras
- Department of Health Products Policy and Standards, World Health Organization, Geneva, Switzerland.,Department of Pharmacology, Therapeutics and Toxicology, Universitat Autònoma de Barcelona, Barcelona, Spain
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Barbier L, Ebbers HC, Declerck P, Simoens S, Vulto AG, Huys I. The Efficacy, Safety, and Immunogenicity of Switching Between Reference Biopharmaceuticals and Biosimilars: A Systematic Review. Clin Pharmacol Ther 2020; 108:734-755. [PMID: 32236956 PMCID: PMC7540323 DOI: 10.1002/cpt.1836] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Accepted: 02/07/2020] [Indexed: 01/10/2023]
Abstract
To date, no consensus exists among stakeholders about switching patients between reference biological products (RPs) and biosimilars, which may have been curbing the implementation of biosimilars in clinical practice. This study synthesizes the available data on switching and assesses whether switching patients from a RP to its biosimilar or vice versa affects efficacy, safety, or immunogenicity outcomes. A total of 178 studies, in which switch outcomes from a RP to a biosimilar were reported, was identified. Data were derived from both randomized controlled trials and real-world evidence. Despite the limitations stemming from a lack of a robust design for most of the studies, the available switching data do not indicate that switching from a RP to a biosimilar is associated with any major efficacy, safety, or immunogenicity issues. Some open-label and observational studies reported increased discontinuation rates after switching, which were mainly attributed to nocebo effects. Involvement of the prescriber in any decision to switch should remain and attention should be paid to the mitigation of a potential nocebo effect.
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Affiliation(s)
- Liese Barbier
- Department of Pharmaceutical and Pharmacological SciencesKU LeuvenLeuvenBelgium
| | - Hans C. Ebbers
- Medicines Evaluation Board (MEB) AgencyUtrechtThe Netherlands
| | - Paul Declerck
- Department of Pharmaceutical and Pharmacological SciencesKU LeuvenLeuvenBelgium
| | - Steven Simoens
- Department of Pharmaceutical and Pharmacological SciencesKU LeuvenLeuvenBelgium
| | - Arnold G. Vulto
- Department of Pharmaceutical and Pharmacological SciencesKU LeuvenLeuvenBelgium
- Hospital PharmacyErasmus University Medical CenterRotterdamThe Netherlands
| | - Isabelle Huys
- Department of Pharmaceutical and Pharmacological SciencesKU LeuvenLeuvenBelgium
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Bellinvia S, Edwards CJ. Explaining biosimilars and how reverse engineering plays a critical role in their development. Expert Opin Drug Discov 2020; 15:1283-1289. [PMID: 32717155 DOI: 10.1080/17460441.2020.1796627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
INTRODUCTION Biologicals are protein-based therapeutics consisting of larger and more complex structures than small molecule medicines. As the patents for originator biological therapeutics expire, biosimilar products are licensed for the same indications as their marketed reference biologics across different specialities. Owing to the complex nature of the manufacturing process for a biological therapy compared to conventional chemically synthetized medicines, the development of biosimilars is more complicated and costly than the manufacture of generic small molecules. AREAS COVERED The manufacturing process of the originator biologic is in most cases largely unknown to biosimilar developers and therefore reverse engineering through extensive analysis of the originator is a fundamental and critical step for successful biosimilar development. In this review, the authors examine the abbreviated roadmap for biosimilar approval which must be underpinned by the same rigorous standards that apply to all biological medicines. They discuss various aspects of biosimilar manufacturing with a focus on reverse engineering. EXPERT OPINION The biosimilar approval pathway places a greater emphasis on preclinical assessments in comparison to the development of originator biologics. Multiple comparative clinical studies add little to the confirmation of the efficacy of the molecule under study whilst adding considerably to the cost and time of bringing a biosimilar into clinical use. A successful demonstration of biosimilarity to the reference product is therefore essential at a structural and functional level but this could not be achieved without well-designed and quality-driven reverse engineering of the originator production process.
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Affiliation(s)
- Salvatore Bellinvia
- Department of Rheumatology and NIHR Clinical Research Facility, University Hospital Southampton NHS Foundation Trust , Southampton, UK
| | - Christopher J Edwards
- Department of Rheumatology and NIHR Clinical Research Facility, University Hospital Southampton NHS Foundation Trust , Southampton, UK
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Belleudi V, Trotta F, Addis A, Ingrasciotta Y, Ientile V, Tari M, Gini R, Pastorello M, Scondotto S, Cananzi P, Traversa G, Davoli M, Trifirò G. Effectiveness and Safety of Switching Originator and Biosimilar Epoetins in Patients with Chronic Kidney Disease in a Large-Scale Italian Cohort Study. Drug Saf 2020; 42:1437-1447. [PMID: 31228010 PMCID: PMC6858470 DOI: 10.1007/s40264-019-00845-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Introduction Real-world data on the comparative effectiveness and safety of switching among different epoetins (including originators and biosimilars) are limited. In light of current debate about interchangeability, prescribers, some patient groups and decision makers are calling for additional post-marketing evidence on the clinical effects of switching between originator and biosimilar epoetins in chronic kidney disease (CKD) patients. Objective The objective of this study was to evaluate the effectiveness and safety of switching versus non-switching and of switching from originator/biosimilar epoetin alpha (ESA α) to any other epoetin in CKD patients. Methods An observational, record-linkage, multi-database, retrospective cohort study was carried out in four Italian geographical areas. All subjects with at least one ESA α dispensing between 1 January 2009 and 31 December 2015 were retrieved. Switching was defined as any transition between originator/biosimilar ESA α to any other epoetin in a series of two consecutive prescriptions up to 2 years. Switchers were matched 1:1 with non-switchers by baseline propensity score and by duration of ESA α treatment. Switchers and non-switchers were followed up from switching date to a maximum of 1 year. Lack of effectiveness and safety of switching versus non-switching were evaluated through Cox regression models (hazard ratio [HR], 95% confidence interval [CI]). A direct comparison between the two switcher categories (switchers from originator/biosimilar ESA α to any other epoetin) was also performed. Results Overall, 14,400 incident users of ESA α for anaemia due to CKD (61.4% originator, 38.6% biosimilar) were available for analysis. During the follow-up, we found no differences on effectiveness (HR 1.02, 95% CI 0.79–1.31 originators; HR 1.16, 95% CI 0.75–1.79 biosimilars) and safety outcomes (HR 1.08, 95% CI 0.77–1.50 originators; HR 1.20, 95% CI 0.66–2.21 biosimilars) between switchers and non-switchers of ESA α. Cumulative probabilities of recording an adverse event, either in terms of lack of effectiveness or safety issue, were the same for two switching categories Conclusions In this large-scale Italian observational multi-database study, switching versus non-switching as well as switching from biosimilar/originator ESA α to any other epoetin in CKD patients is not associated with any effectiveness and safety outcomes. Electronic supplementary material The online version of this article (10.1007/s40264-019-00845-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Valeria Belleudi
- Department of Epidemiology, Lazio Regional Health Service, Via Cristoforo Colombo, 112, 00147, Rome, Italy.
| | | | - Antonio Addis
- Department of Epidemiology, Lazio Regional Health Service, Via Cristoforo Colombo, 112, 00147, Rome, Italy
| | - Ylenia Ingrasciotta
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, Messina, Italy
| | - Valentina Ientile
- Unit of Clinical Pharmacology, A.O.U. Policlinico "G. Martino", Messina, Italy
| | | | - Rosa Gini
- Toscana Regional Healthcare Agency, Florence, Italy
| | | | - Salvatore Scondotto
- Department of Epidemiologic Observatory, Health Department of Sicily, Palermo, Italy
| | - Pasquale Cananzi
- Sicilian Regional Centre of Pharmacovigilance, Servizio 7-Farmaceutica, Health Department of Sicily, Palermo, Italy
| | - Giuseppe Traversa
- Pharmacoepidemiology Unit, National Centre for Epidemiology, Italian National Institute of Health, Rome, Italy
| | - Marina Davoli
- Department of Epidemiology, Lazio Regional Health Service, Via Cristoforo Colombo, 112, 00147, Rome, Italy
| | - Gianluca Trifirò
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, Messina, Italy.,Unit of Clinical Pharmacology, A.O.U. Policlinico "G. Martino", Messina, Italy
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Mansell K, Bhimji H, Eurich D, Mansell H. Potential cost-savings from the use of the biosimilars filgrastim, infliximab and insulin glargine in Canada: a retrospective analysis. BMC Health Serv Res 2019; 19:827. [PMID: 31718624 PMCID: PMC6852752 DOI: 10.1186/s12913-019-4680-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Accepted: 10/25/2019] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND In 2014 and 2015, biosimilars for the drugs filgrastim, infliximab, and insulin glargine were approved for use in Canada. The introduction of biosimilars in Canada could provide significant cost savings for the Canadian healthcare system over originator biologic drugs, however it is known that the use of biosimilars varies widely across the world. The aim of this study was to estimate the use of biosimilars in Canada and potential cost-savings from their use. METHODS We performed a retrospective analysis of Canadian drug purchases for filgrastim, infliximab, and insulin glargine from July 2016 to June 2018. This was a cross-sectional study and the time horizon was limited to the study period. As a result, no discounting of effects over time was included. Canadian drugstore and hospital purchases data, obtained from IQVIA™, were used to estimate the costs per unit and unit volume for biosimilars and originator biologic drugs within each province. Potential cost-savings were calculated as a product of the units of reference originator product purchased and the cost difference between the originator biologic and its corresponding biosimilar. RESULTS The purchase of biosimilars varied by each province in Canada, ranging from a low of 0.1% to a high of 81.6% of purchases. In total, $1,048,663,876 Canadian dollars in savings could have been realized with 100% use of biosimilars over the originator products during this 2 year time period. The potential savings are highest in the province of Ontario ($349 million); however, even in smaller markets (PEI and Newfoundland), $28 million could have potentially been saved. Infliximab accounted for the vast majority of the potential cost-savings, whereas the purchases of the biosimilar filgrastim outpaced that of the originator drug in some provinces. In sensitivity analyses assuming only 80% of originator units would be eligible for use as a biosimilar, $838 million dollars in cost savings over this two-year time period would still have been realized. CONCLUSIONS The overall use of biosimilar drugs in Canada is low. Policy makers, healthcare providers, and patients need to be informed of potential savings by increased use of biosimilars, particularly in an increasingly costly healthcare system.
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Affiliation(s)
- Kerry Mansell
- College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK, S7N 2Z4, Canada.
| | - Hishaam Bhimji
- College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK, S7N 2Z4, Canada
| | - Dean Eurich
- School of Public Health, University of Alberta, Edmonton, AB, T6G 2E1, Canada
| | - Holly Mansell
- College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK, S7N 2Z4, Canada
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12
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Harsányi A, Csanádi M, Márky K, Vincziczki ÁZ, Kaló Z, Inotai A. Influence of biosimilar infliximab launch on the utilization pattern of biological medicines: the case of Hungary. Expert Rev Pharmacoecon Outcomes Res 2019; 20:653-659. [PMID: 31510811 DOI: 10.1080/14737167.2019.1667232] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Objectives: Utilization of multisource biological (off-patent originator and its biosimilar) medicines can improve the efficiency of resource allocation by 1) generating savings while maintaining health outcomes or 2) increasing the number of patients treated with more affordable treatments. This study evaluates the efficiency of the Hungarian biosimilar drug policy on the case of biosimilar infliximab. Methods: We analyzed the utilization of biologicals in all reimbursed indications of infliximab including initial therapy of new patients and switching patterns retrospectively based on patient-level payer's data between September 2012 and December 2016. Results: Despite the economic rationale, patent expiry did not manifest in increased utilization of multisource infliximab in an access-restricted environment: 1) Patients previously treated with original biologicals were switched mainly to other original biologicals instead of more affordable biosimilar alternatives. 2) Although some treatment-naive patients started on more affordable multisource infliximab with price competition, the majority of new patients started on other original biologicals with monopolistic price. Conclusion: Policy tools and measures should be developed to facilitate first-line use of multisource biologicals for treatment-naive patients and promoting the use of more affordable multisource biologicals in case of switching.
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Affiliation(s)
- András Harsányi
- Department of Health Policy and Health Economics, Eötvös Loránd University (ELTE) , Budapest, Hungary.,National Institute of Health Insurance Fund Management , Budapest, Hungary
| | - Marcell Csanádi
- Syreon Research Institute , Budapest, Hungary.,Department of Pharmaceutics and Central Clinical Pharmacy, University of Pécs , Pécs, Hungary
| | - Kristóf Márky
- National Institute of Health Insurance Fund Management , Budapest, Hungary
| | | | - Zoltán Kaló
- Department of Health Policy and Health Economics, Eötvös Loránd University (ELTE) , Budapest, Hungary.,Syreon Research Institute , Budapest, Hungary
| | - András Inotai
- Department of Health Policy and Health Economics, Eötvös Loránd University (ELTE) , Budapest, Hungary.,Syreon Research Institute , Budapest, Hungary
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13
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Mkinsi O, Lefkir-Tafiani S, Srairi HS, Kochbati S, El Dershaby YM, El Azhari MM, Midjek SAI, Ladjouze-Rezig A. Regulatory Perspectives on Biopharmaceuticals for Chronic Inflammatory Diseases in North Africa: A Narrative Review. Open Rheumatol J 2019. [DOI: 10.2174/1874312901913010072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Introduction of innovative biopharmaceuticals has dramatically changed the treatment of chronic inflammatory diseases, but access to these very effective agents may be limited by economic constraints in some regions. The development of biosimilar products at a lower cost may allow wider access to treatment, but rigorous scientific evaluation is required to ensure similar quality, efficacy, and safety. The World Health Organization, European Medicines Agency, and United States Food and Drug Administration have created stringent guidelines for biosimilar regulatory approval, stipulating that high similarity be demonstrated in comprehensive comparability studies. Although these regulatory standards have been adapted in many countries, the legal/regulatory frameworks required for biosimilar authorization remain in development elsewhere, including North Africa. In some countries, “intended copies” are available despite inadequate evidence of comparability to the reference product and failure to satisfy biosimilar regulatory requirements. In North Africa, as the regulatory pathway for biosimilars is established, regulators will address several important challenges, including criteria for comparability, switching/substitution, post-marketing monitoring/risk management, and product naming conventions. Caution is advised to ensure that lower cost and broader access are not achieved at the expense of patient safety, and educational initiatives should be undertaken for clinicians/patients. In this review, we define the various types of biopharmaceuticals currently available for the treatment of chronic inflammatory disease, provide an overview of regulatory requirements for biosimilar approval and an update on the availability of these agents globally and in North Africa, and discuss crucial concerns related to their use from the viewpoint of North African rheumatologists.
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14
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Krendyukov A, Schiestl M. Biosimilars in oncology: A decade of experience with granulocyte colony-stimulating factor and its implications for monoclonal antibodies. Crit Rev Oncol Hematol 2019:102785. [PMID: 31405784 DOI: 10.1016/j.critrevonc.2019.07.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 09/24/2018] [Accepted: 07/10/2019] [Indexed: 12/15/2022] Open
Abstract
Biosimilars offer the potential for improved sustainability of cancer care. In oncology, granulocyte colony-stimulating factor and erythropoiesis-stimulating agent biosimilars have been available for almost a decade, with biosimilars of monoclonal antibodies a more recent development. Sandoz biosimilar filgrastim was approved based on Phase III confirmatory studies conducted in patients with breast cancer experiencing chemotherapy-induced neutropenia, with other indications granted based on extrapolation. Despite the fact that extrapolation is a well-established scientific principle in regulation of biological medicines, it is a commonly misunderstood part of the biosimilar concept. Broad experience from almost a decade of use of Sandoz biosimilar filgrastim includes >21 million patient-days exposure and >9 years of real-world clinical evidence, indicates extrapolation successfully at work. Together, this can help reassure oncologists that extrapolation is based on sound scientific principles. Efforts to improve understanding of extrapolation are critical to ensure the acceptance of future oncology biosimilar monoclonal antibodies.
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Affiliation(s)
- Andriy Krendyukov
- Former employee of HEXAL AG, Industriestr. 25, D-83607, Holzkirchen, Germany.
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15
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Ingrasciotta Y, Cutroneo PM, Marcianò I, Giezen T, Atzeni F, Trifirò G. Safety of Biologics, Including Biosimilars: Perspectives on Current Status and Future Direction. Drug Saf 2019; 41:1013-1022. [PMID: 29796832 DOI: 10.1007/s40264-018-0684-9] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
In recent years, marketing of highly innovative and costly biologics improved the management of high-burden diseases such as autoimmune diseases, cancers, and chronic renal failure. Several widely prescribed biologics have recently lost or will shortly lose their patents, thus opening avenues to the marketing of a growing number of biosimilars worldwide, which are products similar in terms of quality, safety, and efficacy to already licensed reference products, thus allowing for potential savings in pharmaceutical expenditure. Numerous debates about the interchangeability between biosimilars and reference products are still ongoing, owing to concerns about potential immunogenicity raised by switching, which may cause a lack of effect and toxicity. Patients successfully treated with biologic therapy may theoretically receive biosimilars to contain costs, if reference product and related biosimilar are judged as interchangeable. However, the positions of regulatory agencies on the interchangeability and automatic substitution of biologics with biosimilars are very different. The benefit-risk profile of biosimilars has been often questioned by clinicians owing to the limited amount of pre-marketing information on clinical efficacy and safety, despite biosimilarity being based on a comparability exercise with the reference product to gain the biosimilar approval. Nevertheless, after more than 10 years of marketing from the first biosimilar approval in Europe, no proof of differences in terms of the safety profile of biosimilars and originators has been reported. In this context, post-marketing evaluation of both biologics and biosimilars safety profiles through analyses from spontaneous reporting databases and claims databases is crucial. An important issue for the pharmacovigilance of biologics concerns the traceability, indicating the brand name and batch number in spontaneous adverse drug reaction reports, but this requirement is not frequently addressed. This review aims to provide an overview of the characteristics and potential challenges in the safety profile assessment of biologics with a focus on the post-marketing setting.
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Affiliation(s)
- Ylenia Ingrasciotta
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, Via Consolare Valeria, Messina, Italy
| | - Paola M Cutroneo
- Unit of Clinical Pharmacology, A.O.U. Policlinico "G. Martino", Messina, Italy.,Sicilian Regional Pharmacovigilance Center, Messina, Italy
| | - Ilaria Marcianò
- Unit of Clinical Pharmacology, A.O.U. Policlinico "G. Martino", Messina, Italy
| | - Thijs Giezen
- Foundation Pharmacy for Hospitals in Haarlem, Haarlem, The Netherlands
| | - Fabiola Atzeni
- Unit of Rheumatology, Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Gianluca Trifirò
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, Via Consolare Valeria, Messina, Italy. .,Unit of Clinical Pharmacology, A.O.U. Policlinico "G. Martino", Messina, Italy.
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16
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Concepts and Challenges of Biosimilars in Breast Cancer: The Emergence of Trastuzumab Biosimilars. Pharmaceutics 2018; 10:pharmaceutics10040168. [PMID: 30257528 PMCID: PMC6321008 DOI: 10.3390/pharmaceutics10040168] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 09/18/2018] [Accepted: 09/22/2018] [Indexed: 12/17/2022] Open
Abstract
With the development of anti-human epidermal growth factor receptor 2 (HER2) monoclonal antibodies, trastuzumab-based therapy has become the standard of care among patients with early or advanced HER2-positive breast cancer. However, real-world data have shown that up to a half of patients do not receive trastuzumab or any other HER2-targeted agent, mainly due to high treatments costs. The prospect of a more enlarged access to trastuzumab treatment lies in the use of biosimilars, as the European and the US patent of the reference products has or will soon expire. Biosimilars are biologics highly similar in terms of quality characteristics, biological activity, safety and efficacy to already approved biologics. The biosimilarity of any European Union (EU)-approved biosimilar is guaranteed based on the comprehensive comparability exercise which includes comparative analytical, non-clinical and clinical studies. In the matter of biosimilars’ interchangeability and substitution, the European Medicines Agency (EMA) and US Food and Drug Administration (FDA) have adopted different positions, triggering various discussions on the potential immunogenicity and efficacy in individual patients. As more biosimilars are gaining approval, the present review aims to offer concise information for oncologists and pharmacists about the production, approval, interchangeability, and substitution policies of biosimilars used in breast cancer therapy, with a special focus on trastuzumab.
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17
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Abstract
High-quality, safe, and effective biosimilars have the potential to increase access to biological therapies worldwide and to reduce cancer care costs. The European Medicines Agency (EMA) was the first regulatory authority to establish legislative procedures for the approval of biosimilars when they published their guidelines on similar biological medicinal products in 2005. Biosimilar epoetins were first approved in 2007, and a wealth of data has been collected over the last decade. Two biosimilar epoetins (under five commercial names) have been approved by the EMA so far. The availability of epoetin biosimilars generated discussion among the oncology community regarding prescribing these products, their efficacy, and their safety. These agents are approved only if they are shown in extensive analytical and clinical testing to have comparable quality, safety, and efficacy to the reference medicine, and real-world studies provide further data that biosimilar epoetins are an effective and well-tolerated option for the treatment of chemotherapy-induced anemia in patients with cancer. Other countries have adopted similar regulatory pathways to those in Europe and have approved epoetin biosimilars. The now extensive European experience with biosimilar epoetins should reassure regulators from other territories.
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18
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O'Callaghan J, Barry SP, Bermingham M, Morris JM, Griffin BT. Regulation of biosimilar medicines and current perspectives on interchangeability and policy. Eur J Clin Pharmacol 2018; 75:1-11. [PMID: 30187103 DOI: 10.1007/s00228-018-2542-1] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 08/13/2018] [Indexed: 01/23/2023]
Abstract
Competition arising from the increasing availability of biosimilar medicines has resulted in healthcare savings and has provided greater patient access to high cost therapeutics in Europe. The biosimilar market in the USA is relatively new so the full impact of biosimilar availability remains to be seen. Educational initiatives relating to the use of biosimilar medicines are currently being undertaken by regulators, policy makers and industry. The debate on biosimilars has moved on from the appropriateness of the regulatory framework which governs their approval, to the practice of interchangeability. Interchangeability is an important issue for healthcare professionals but different definitions and regulatory frameworks exist in the USA and Europe. In the USA, an interchangeable biological product is a biosimilar which may be substituted by a pharmacist, subject to local State policies. The interchangeability of a biosimilar with its reference medicine will be evaluated by the United States Food and Drug Administration (FDA) in cases where approval as an 'interchangeable product' is sought. In contrast, the European Medicines Agency (EMA) does not assess or make recommendations on interchangeability, therefore, in Europe, interchangeability does not mean substitution but is generally physician-led or driven by national policy. This paper provides an overview of the regulation of biosimilar medicines. Challenges associated with the demonstration of interchangeability and practical considerations relating to switching are also discussed. Finally, we present policies that have been adopted to date in several European countries, the USA and Australia, which aim to promote the use of biosimilar medicines.
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Affiliation(s)
- J O'Callaghan
- Regulatory Science Ireland, c/o School of Pharmacy, University College Cork, Cork, Ireland.,School of Pharmacy, University College Cork, Cork, Ireland.,Health Products Regulatory Authority, Kevin O'Malley House, Earlsfort Centre, Earlsfort Terrace, Dublin 2, Ireland
| | - S P Barry
- Health Products Regulatory Authority, Kevin O'Malley House, Earlsfort Centre, Earlsfort Terrace, Dublin 2, Ireland.
| | - M Bermingham
- School of Pharmacy, University College Cork, Cork, Ireland
| | - J M Morris
- Regulatory Science Ireland, c/o School of Pharmacy, University College Cork, Cork, Ireland
| | - B T Griffin
- Regulatory Science Ireland, c/o School of Pharmacy, University College Cork, Cork, Ireland.,School of Pharmacy, University College Cork, Cork, Ireland
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19
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Goldsmith D, Dellanna F, Schiestl M, Krendyukov A, Combe C. Epoetin Biosimilars in the Treatment of Renal Anemia: What Have We Learned from a Decade of European Experience? Clin Drug Investig 2018; 38:481-490. [PMID: 29500617 PMCID: PMC5951862 DOI: 10.1007/s40261-018-0637-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Biosimilars are biological medicines that are approved via stringently defined regulatory pathways on the basis that comparable safety, efficacy, and quality have been demonstrated to their reference medicine. The advantage of biosimilar drugs is that they may be less expensive than the reference medicine, allowing for greater patient access and cost savings in already stretched healthcare budgets. Biosimilar epoetins have been available in Europe for a decade. Complementing in vitro and preclinical characterization, and pharmacokinetic/pharmacodynamic studies, clinical trials provided the additional data needed to reassure European authorities that biosimilar epoetins were sufficiently similar to the reference epoetin to warrant approval. Post-approval, real-world studies have provided further evidence that biosimilar epoetins are an effective and well-tolerated option for the treatment of renal anemia, with ongoing pharmacovigilance and observational studies monitoring for any unexpected long-term signals that have not been identified in clinical development studies. As the evidence and experience with these products increase, many of the initial concerns are being alleviated. Nephrologists can be increasingly confident that European Medicines Agency-approved biosimilars offer high-quality, affordable, effective alternatives to existing reference medicines used to treat renal anemia, and may help yield cost savings and improve patient access.
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Affiliation(s)
- David Goldsmith
- Division of Nephrology, Guy's and St. Thomas' Hospitals, London, UK
| | | | - Martin Schiestl
- Sandoz Biopharmaceuticals, Sandoz International GmbH, Kundl, Austria
| | - Andriy Krendyukov
- Hematology/Nephrology, Sandoz Biopharmaceuticals, Hexal AG, Industriestr. 25, 83607, Holzkirchen, Germany.
| | - Christian Combe
- Service de Néphrologie Transplantation Dialyse Aphérèse, Centre Hospitalier Universitaire de Bordeaux, Bordeaux, France.,Université de Bordeaux, INSERM 1026, Bordeaux, France
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Abstract
Evidence from over 10 years of clinical experience demonstrates that biosimilar medicines approved in the European Union can be used for all their registered indications as safely as their originators and with no negative impact on therapeutic efficacy. The debate on the use of biosimilars in rheumatology focuses specifically on the safety of switching between biosimilars and reference products. Studies conducted to date, including randomised double-blind and open-label extension trials, have not demonstrated any significant differences in therapeutic efficacy or safety between patients switched from one medicine to another and those who were continued on a single medicine. According to the latest recommendations for the use of biosimilars in rheumatic diseases, developed by an international task force in 2017, there is no clinical evidence that a single switch from an originator to a biosimilar medicine is associated with any significant risk for patient safety or reduction in therapeutic efficacy.
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21
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Kaida-Yip F, Deshpande K, Saran T, Vyas D. Biosimilars: Review of current applications, obstacles, and their future in medicine. World J Clin Cases 2018; 6:161-166. [PMID: 30148143 PMCID: PMC6107532 DOI: 10.12998/wjcc.v6.i8.161] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 06/05/2018] [Accepted: 06/27/2018] [Indexed: 02/05/2023] Open
Abstract
Biosimilars are a growing drug class designed to be used interchangeably with biologics. Biologics are created in living cells and are typically large, complex proteins that may have a variety of uses. Within the field of gastroenterology alone, biologics are used to treat inflammatory bowel diseases, cancers, and endocrine disorders. While biologics have proven to be effective in treating or managing many diseases, patient access is often limited by high costs. The development of biosimilars is an attempt to reduce treatment costs. Biosimilars must be nearly identical to their reference biologics in terms of efficacy, side effect risk profile, and immunogenicity. Although the manufacturing process still involves production within living cells, biosimilars undergo fewer clinical trials than do their reference biologics. This ultimately reduces the cost of production and the cost of the biosimilar drug compared to its reference biologic. Currently, seven biosimilars have been approved by the United States Food and Drug Administration (FDA) for use in Crohn’s disease, ulcerative colitis, and colorectal cancer. There are other biologics involved in treating gastroenterologic diseases for which there are no FDA approved biosimilars. Although biosimilars have the potential to reduce healthcare costs in chronic disease management, they face challenges in establishing a significant market share. Physician comfort in prescribing reference biologics instead of biosimilars and patient reluctance to switch from a biologic to a biosimilar are two common contributing factors to biosimilars’ slow increase in use. More time will be needed for biosimilars to establish a larger and more consistent market share compared to their reference biologics. Additional data confirming the safety and efficacy of biosimilars, increased number of available biosimilars, and further cost reduction of biosimilars will all be necessary to improve physician confidence in biosimilars and patient comfort with biosimilars.
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Affiliation(s)
- Flyn Kaida-Yip
- College of Medicine, California Northstate University, Elk Grove, CA 95758, United States
| | - Kaivalya Deshpande
- Department Of Surgery, Michigan State University, Lansing, MI 48912, United States
| | - Trishla Saran
- Department of Medicine, the University of Texas of the Permian Basin, Odessa, TX 79762, United States
| | - Dinesh Vyas
- Department of Surgery, Texas Tech University, Odessa, TX 79763, United States
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22
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Rocco P, Selletti S, Minghetti P. Biosimilar switching and related medical liability. J Forensic Leg Med 2018; 55:93-94. [DOI: 10.1016/j.jflm.2018.02.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 12/20/2017] [Accepted: 02/12/2018] [Indexed: 10/18/2022]
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23
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Cohen HP, Blauvelt A, Rifkin RM, Danese S, Gokhale SB, Woollett G. Switching Reference Medicines to Biosimilars: A Systematic Literature Review of Clinical Outcomes. Drugs 2018; 78:463-478. [PMID: 29500555 PMCID: PMC5854749 DOI: 10.1007/s40265-018-0881-y] [Citation(s) in RCA: 140] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
INTRODUCTION To evaluate the possibility that switching from reference biologic medicines to biosimilars could lead to altered clinical outcomes, including enhanced immunogenicity, compromised safety, or diminished efficacy for patients, a systematic literature review was conducted of all switching studies between related biologics (including biosimilars). METHODS A systematic search was conducted using the Medline® and Embase® databases up to 30 June 2017 employing specific medical subject heading terms. Additionally, the snowball method and a hand search were also applied. Publications were considered if they contained efficacy or safety information related to a switch from a reference medicine to a biosimilar. Non-English, non-human studies, editorials, notes, and short surveys were excluded. RESULTS Primary data were available from 90 studies that enrolled 14,225 unique individuals. They included protein medicines used in supportive care as well as those used as therapeutic agents. The medicines contained seven different molecular entities that were used to treat 14 diseases. The great majority of the publications did not report differences in immunogenicity, safety, or efficacy. The nature and intensity of safety signals reported after switching from reference medicines to biosimilars were the same as those already known from continued use of the reference medicines alone. Three large multiple switch studies with different biosimilars did not show differences in efficacy or safety after multiple switches between reference medicine and biosimilar. Two publications reported a loss of efficacy or increased dropout rates. CONCLUSIONS While use of each biologic must be assessed individually, these results provide reassurance to healthcare professionals and the public that the risk of immunogenicity-related safety concerns or diminished efficacy is unchanged after switching from a reference biologic to a biosimilar medicine.
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Affiliation(s)
- Hillel P Cohen
- Sandoz Inc., 100 College Road West, Princeton, NJ, 08540, USA.
| | | | | | - Silvio Danese
- IBD Center, Humanitas Clinical and Research Hospital, Milan, Italy
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Patient Access, Unmet Medical Need, Expected Benefits, and Concerns Related to the Utilisation of Biosimilars in Eastern European Countries: A Survey of Experts. BIOMED RESEARCH INTERNATIONAL 2018; 2018:9597362. [PMID: 29546072 PMCID: PMC5818964 DOI: 10.1155/2018/9597362] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Accepted: 12/06/2017] [Indexed: 01/27/2023]
Abstract
This policy research aims to map patient access barriers to biologic treatments, to explore how increased uptake of biosimilars may lower these hurdles and to identify factors limiting the increased utilisation of biosimilars. A policy survey was developed to review these questions in 10 Central and Eastern European (CEE) and Commonwealth of Independent States (CIS) countries. Two experts (one public and one private sector representative) from each country completed the survey. Questions were related to patient access, purchasing, clinical practice, and real-world data collection on both original biologics and biosimilars. Restrictions on the number of patients that can be treated and related waiting lists were reported as key patient access barriers. According to respondents, for both clinicians and payers the primary benefit of switching patients to biosimilars would be to treat more patients. However, concerns with therapeutic equivalence and fear of immunogenicity may reduce utilisation of biosimilars. Similar limitations in patient access to both original biologics and biosimilars raise concerns about the appropriateness and success of current biosimilar policies in CEE and CIS countries. The conceptual framework for additional real-world data collection exists in all countries which may provide a basis for future risk-management activities including vigorous pharmacovigilance data collection.
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25
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Affiliation(s)
| | - Matti Aapro
- Multidisciplinary Oncology Institute, Clinique de Genolier, Genolier, Switzerland
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26
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Trifirò G, Marcianò I, Ingrasciotta Y. Interchangeability of biosimilar and biological reference product: updated regulatory positions and pre- and post-marketing evidence. Expert Opin Biol Ther 2017; 18:309-315. [DOI: 10.1080/14712598.2018.1410134] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Gianluca Trifirò
- Unit of Clinical Pharmacology, A.O.U. Policlinico ‘‘G. Martino’’, Messina, Italy
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, Messina, Italy
| | - Ilaria Marcianò
- Unit of Clinical Pharmacology, A.O.U. Policlinico ‘‘G. Martino’’, Messina, Italy
| | - Ylenia Ingrasciotta
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, Messina, Italy
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Abstract
PURPOSE OF REVIEW After expiry of the patent of originator anti-tumor necrosis factor drug infliximab (Remicade), CT-P13 was in 2013 the first infliximab biosimilar to be approved by the European Medicine Agency (EMA) for the same indications as the reference drug, including paediatric inflammatory bowel disease (IBD). The approval was based on extrapolation, after extensive in-vitro studies and clinical experience in patients with ankylosing spondylitis and rheumatoid arthritis. The extrapolation of CT-P13 to IBD and to paediatric patients raised concerns among paediatric IBD specialists. RECENT FINDINGS Now, almost 4 years later, we can conclude that those concerns have been resolved. There are a growing number of postmarketing studies and real-life data, so far mostly in adults and some in children with IBD. These studies show reassuring comparable efficacy, safety and immunogenicity between CT-P13 and the reference Infliximab. CONCLUSION In Europe, biosimilars are increasingly regularly prescribed drugs in paediatric IBD. Due to their lower cost, treatment expenses have gone down considerably (up to 30% or more in some countries) and patient access has improved. However, additional well designed studies to investigate long term follow-up of biosimilars in children are still needed. In addition, clinical studies addressing pharmacokinetics, pharmacodynamics and optimal use of infliximab (originator as well as biosimilar) are still desirable.
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Serra López-Matencio JM, Morell Baladrón A, Castañeda S. Fármacos biosimilares: un nuevo escenario en las terapias biológicas. ACTA ACUST UNITED AC 2017; 13:287-293. [DOI: 10.1016/j.reuma.2016.05.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Revised: 05/16/2016] [Accepted: 05/22/2016] [Indexed: 11/26/2022]
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Inotai A, Prins CPJ, Csanádi M, Vitezic D, Codreanu C, Kaló Z. Is there a reason for concern or is it just hype? - A systematic literature review of the clinical consequences of switching from originator biologics to biosimilars. Expert Opin Biol Ther 2017. [PMID: 28650704 DOI: 10.1080/14712598.2017.1341486] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
INTRODUCTION While prescribing biosimilars to patients naive to a biologic treatment is a well-accepted practice, switching clinically stable patients from an originator to a biosimilar is an issue for clinicians. Well-designed clinical trials and real-world data which study the consequences of switching from an originator biologic treatment to its biosimilar alternative are limited, especially for monoclonal antibodies. Areas covered: A systematic literature review was conducted on PubMed to identify evidence of the consequences of switching from original biologics to biosimilars. References of included papers were also scrutinized. After a title-, abstract- and full text screening, out of the 153 original hits and 77 additional ones from screening the references, 58 papers (12 empirical papers, 5 systematic reviews and 41 non-empirical papers) were included. Expert opinion: Preventing patients on biologic medicines from switching to biosimilars due to anticipated risks seems to be disproportional compared to the expected cost savings and/or improved patient access. Indeed, it is the opinion of the authors that the concern of switching to biosimilars is overhyped.
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Affiliation(s)
- András Inotai
- a Syreon Research Institute , Budapest , Hungary.,b Department of Health Policy & Health Economics , Faculty of Social Sciences, Eötvös Loránd University (ELTE) Budapest , Hungary
| | - Christiaan P J Prins
- c Department of Pharmaceutical Sciences , Utrecht University , Utrecht , The Netherlands
| | | | - Dinko Vitezic
- d University of Rijeka School of Medicine and University Hospital Centre Rijeka , Rijeka , Croatia
| | - Catalin Codreanu
- e Center for Rheumatic Diseases , University of Medicine and Pharmacy , Bucharest , Romania
| | - Zoltán Kaló
- a Syreon Research Institute , Budapest , Hungary.,b Department of Health Policy & Health Economics , Faculty of Social Sciences, Eötvös Loránd University (ELTE) Budapest , Hungary
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Blauvelt A, Puig L, Chimenti S, Vender R, Rajagopalan M, Romiti R, Skov L, Zachariae C, Young H, Prens E, Cohen A, van der Walt J, Wu JJ. Biosimilars for psoriasis: clinical studies to determine similarity. Br J Dermatol 2017; 177:23-33. [PMID: 27639072 DOI: 10.1111/bjd.15067] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/16/2016] [Indexed: 11/29/2022]
Abstract
Biosimilars are drugs that are similar, but not identical, to originator biologics. Preclinical analytical studies are required to show similarity on a molecular and structural level, but efficacy and safety studies in humans are essential to determining biosimilarity. In this review, written by members of the International Psoriasis Council, we discuss how biosimilars are evaluated in a clinical setting, with emphasis on extrapolation of indication, interchangeability and optimal clinical trial design.
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Affiliation(s)
- A Blauvelt
- Oregon Medical Research Center, Portland, OR, U.S.A
| | - L Puig
- Department of Dermatology, Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - S Chimenti
- University of Rome Tor Vergate, Rome, Italy
| | - R Vender
- Dermatrials Research Inc., Hamilton, ON, Canada.,Venderm Innovations in Psoriasis, Hamilton, ON, Canada
| | | | - R Romiti
- Department of Dermatology, University of São Paulo, São Paulo, Brazil
| | - L Skov
- Herllev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - C Zachariae
- Herllev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - H Young
- Manchester Academic Health Science Centre, Department of Dermatology, University of Manchester, Salford Royal Hospital, Manchester, U.K
| | - E Prens
- Department of Dermatology, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - A Cohen
- Siaal Research Center for Family Medicine and Primary Care, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel.,Department of Quality Measurements and Research, Chief Physician's Office, Clalit Health Services, Tel Aviv, Israel
| | | | - J J Wu
- Department of Dermatology, Kaiser Permanente Los Angeles Medical Center, Los Angeles, CA, U.S.A
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Abstract
Many of the best-selling 'blockbuster' biological medicinal products are, or will soon be, facing competition from similar biological medicinal products (biosimilars) in the EU. Biosimilarity is based on the comparability concept, which has been used successfully for several decades to ensure close similarity of a biological product before and after a manufacturing change. Over the last 10 years, experience with biosimilars has shown that even complex biotechnology-derived proteins can be copied successfully. Most best-selling biologicals are used for chronic treatment. This has triggered intensive discussion on the interchangeability of a biosimilar with its reference product, with the main concern being immunogenicity. We explore the theoretical basis of the presumed risks of switching between a biosimilar and its reference product and the available data on switches. Our conclusion is that a switch between comparable versions of the same active substance approved in accordance with EU legislation is not expected to trigger or enhance immunogenicity. On the basis of current knowledge, it is unlikely and very difficult to substantiate that two products, comparable on a population level, would have different safety or efficacy in individual patients upon a switch. Our conclusion is that biosimilars licensed in the EU are interchangeable.
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de Mora F, Fauser BCJM. Biosimilars to recombinant human FSH medicines: comparable efficacy and safety to the original biologic. Reprod Biomed Online 2017; 35:81-86. [PMID: 28462793 DOI: 10.1016/j.rbmo.2017.03.020] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 03/30/2017] [Accepted: 03/31/2017] [Indexed: 11/30/2022]
Abstract
Two recombinant follicle-stimulating hormone (rFSH)-bearing similar biological medicines (biosimilars) have been authorized by the European Commission. Biosimilar is a regulatory concept alluding to the evidence-based high-standard comparability studies needed to demonstrate its equivalence to a reference original biologic. Because biosimilar development represents a shift from the long-lasting existing paradigms, a thorough understanding of the science behind it will contribute to helping prescribers make informed treatment choices. Contrary to chemically-synthesized medicines, biologics are subject to an inherent molecular variability. From the experience with original biologics, regulatory authorities have accumulated a wealth of knowledge as to what minor batch-to-batch physicochemical variations may be therapeutically acceptable in a given product. Furthermore, in spite of analytically detectable differences, the two original rFSH-bearing medicines currently on the market share fundamentally the same therapeutic profile. Unlike those original medicines, a biosimilar of an rFSH product and the corresponding reference biologic share essentially the same active pharmaceutical ingredient. They are also administered via the same route, at the same dose, and for the same indications. This article revises the background evidence over which the biosimilarity principle has been built, and highlights the therapeutic potential for follitropin biosimilars in order to reassure physicians on their benefit.
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Affiliation(s)
- Fernando de Mora
- Department of Pharmacology, Therapeutics and Toxicology, Universitat Autònoma de Barcelona, Barcelona, Spain.
| | - Bart C J M Fauser
- Department of Reproductive Medicine and Gynecology, University Medical Center Utrecht, Utrecht, The Netherlands
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Trotta F, Belleudi V, Fusco D, Amato L, Mecozzi A, Mayer F, Sansone M, Davoli M, Addis A. Comparative effectiveness and safety of erythropoiesis-stimulating agents (biosimilars vs originators) in clinical practice: a population-based cohort study in Italy. BMJ Open 2017; 7:e011637. [PMID: 28283484 PMCID: PMC5353346 DOI: 10.1136/bmjopen-2016-011637] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Revised: 12/23/2016] [Accepted: 01/23/2017] [Indexed: 11/11/2022] Open
Abstract
OBJECTIVES To evaluate the benefit/risk profile of epoetin α biosimilar with the erythropoiesis-stimulating agents (ESAs) originators when administered to naïve patients from clinical practice. DESIGN Population-based observational cohort study. SETTING All residents in the Lazio Region, Italy, with chronic kidney disease (CKD) or cancer retrieved from the Electronic Therapeutic Plan (ETP) Register for ESA between 2012 and 2014. PARTICIPANTS Overall, 13 470 incident ESA users were available for the analysis, 8161 in the CKD and 5309 in the oncology setting, respectively. INTERVENTIONS ESAs identified through the ATC B03XA were divided into 3 groups: (1) biosimilars; (2) epoetin α originator and (3) other originators. Patients were exposed to ESAs from the date of activation of the ETP, until the end of a 6-month follow-up period. OUTCOME MEASURES Effectiveness (all-cause mortality and blood transfusion) and safety (major cardiovascular events, blood dyscrasia). A composite outcome including all-cause mortality, blood transfusion and major cardiovascular events was predefined. HRs of any outcome were estimated through Cox regression. RESULTS We found no differences between patients on biosimilars or all originators with regard to the risk estimates of all-cause mortality, blood transfusion, major cardiovascular events and blood dyscrasia in the CKD setting. The composite outcome confirmed these results (biosimilars vs epoetin α originators: adjusted HR=1.02, 95% CI 0.78 to 1.33; biosimilars vs other originators: adjusted HR=1.09, 95% CI 0.85 to 1.41). Comparable risk estimates were observed between biosimilars and all originators in the oncology setting. CONCLUSIONS In both settings, our findings are suggestive of no difference between biosimilars and originators on relevant effectiveness and safety outcomes. This study may contribute to settling future drug policy for the health services and provides reassurance on the approval pathway for biosimilars. The oncology setting merits further research, taking into account tumour types, tumour stage and anticancer chemotherapy administered.
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Affiliation(s)
- Francesco Trotta
- Department of Epidemiology, Lazio Regional Health Service, Rome, Italy
| | - Valeria Belleudi
- Department of Epidemiology, Lazio Regional Health Service, Rome, Italy
| | - Danilo Fusco
- Department of Epidemiology, Lazio Regional Health Service, Rome, Italy
| | - Laura Amato
- Department of Epidemiology, Lazio Regional Health Service, Rome, Italy
| | - Alessandra Mecozzi
- Drug Policy Area, General Directorate for Health, The Lazio Region, Rome, Italy
| | - Flavia Mayer
- Department of Epidemiology, Lazio Regional Health Service, Rome, Italy
| | - Massimo Sansone
- Drug Policy Area, General Directorate for Health, The Lazio Region, Rome, Italy
| | - Marina Davoli
- Department of Epidemiology, Lazio Regional Health Service, Rome, Italy
| | - Antonio Addis
- Department of Epidemiology, Lazio Regional Health Service, Rome, Italy
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Goncalves J, Matos de Brito P, Batista A, Feio J, Machado F, Aperta J, Ascensão I, Pires V, Oliveira C, Armandina Pontes R, Alcobia A, Paulo Cruz J, Lampreia Guerreiro S, Farinha H, Margarida Freitas A, Caetano M, Almeida P, Costa B, Oliveira C, Campos C, Madureira B, Cavaco M, Catarino H. Position Paper from the Portuguese Association of Hospital Pharmacists for biosimilar therapeutic antibodies. J Clin Pharm Ther 2016; 42:239-243. [PMID: 27859438 DOI: 10.1111/jcpt.12477] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Accepted: 10/10/2016] [Indexed: 12/30/2022]
Abstract
WHAT IS KNOWN AND OBJECTIVE Biopharmaceuticals are an important class of drugs for the treatment of autoimmune/inflammatory and oncologic diseases. With patent expiries, biotechnological manufacturers can now develop biosimilar drugs. Due to timeliness of introducing new and more complex biosimilars, the Portuguese Association of Hospital Pharmacists gathered to develop a common positioning on the use of biosimilar monoclonal antibodies. MAIN ISSUES The European pathway to biosimilar approval was developed to improve affordability and access to biological therapies, but it remains a work in progress because unresolved issues remain. Due to the present reality of biosimilar monoclonal antibodies, hospital pharmacists must play an important role in ensuring the safe, effective and cost-effective use of biosimilars in health systems; and educating healthcare administrators, providers, legislators, policymakers, payors and patients about these products. WHAT IS NEW AND CONCLUSION The conclusions presented in this work focused on the proposal for optimal biosimilar prescription criteria, the preparation of original biologics and biosimilars in the pharmacy, the management and selection of suppliers, extrapolation issues, the specific role of pharmacovigilance and risk management for the optimal use of biosimilar monoclonal antibodies.
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Affiliation(s)
- J Goncalves
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal
| | - P Matos de Brito
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal.,Faculdade de Ciências da Saúde, Universidade da Beira Interior, Covilhã, Portugal
| | | | - J Feio
- CHUC, Hospitais da Universidade de Coimbra, Coimbra, Portugal
| | - F Machado
- CHUC, Hospitais da Universidade de Coimbra, Coimbra, Portugal
| | | | - I Ascensão
- Hospital Beatriz Angelo, Loures, Portugal
| | | | - C Oliveira
- Hospital Vila Franca de Xira, Vila Franca de Xira, Portugal
| | | | - A Alcobia
- Hospital Garcia de Orta, Almada, Portugal
| | | | | | - H Farinha
- Hospital Egas Moniz, Lisboa, Portugal
| | | | - M Caetano
- CHUC, Hospitais da Universidade de Coimbra, Coimbra, Portugal
| | - P Almeida
- Hospital Garcia de Orta, Almada, Portugal
| | | | | | - C Campos
- Hospital Pedro Hispano, Sra. da Hora, Portugal
| | - B Madureira
- Hospital São Francisco Xavier, Lisboa, Portugal
| | - M Cavaco
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal
| | - H Catarino
- British Hospital Lisbon XXI, Lisboa, Portugal
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35
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Schellekens H, Smolen JS, Dicato M, Rifkin RM. Safety and efficacy of biosimilars in oncology. Lancet Oncol 2016; 17:e502-e509. [DOI: 10.1016/s1470-2045(16)30374-6] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Revised: 07/11/2016] [Accepted: 07/18/2016] [Indexed: 12/30/2022]
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36
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D'Amore C, Da Cas R, Rossi M, Traversa G. Switching Between Epoetins: A Practice in Support of Biosimilar Use. BioDrugs 2016; 30:27-32. [PMID: 26728875 PMCID: PMC4746226 DOI: 10.1007/s40259-015-0155-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Background The acceptability of switching between reference drugs and their biosimilars is often disputed. It is unclear whether this concern is specific to the use of biosimilars or is relevant to the practice of switching between any biological drugs. Objective The objective of this study was to quantify the occurrence of switching between different erythropoiesis-stimulating agents. Methods A retrospective drug utilization study was conducted in the Umbria region (Italy). The study population included all residents who received their first epoetin prescription between 1 July 2011 and 31 December 2014. The Umbria drug prescription database and the regional archive of residents were used to gather information. Switching was defined as any transition between different epoetins (different substances and/or different products of the same substance) in a series of two prescriptions. The probability of switching was described in relationship to the duration of treatment in a survival analysis. Results Overall, 3258 subjects received prescriptions of epoetins. Among the 2896 patients with at least two prescriptions, 354 (12.2 %) experienced one or more switches. The probability of switching depended on the duration of treatment: approximately 15 % of users switched within 12 months of observation and 25 % switched within 2 years. Switching was not limited to reference and biosimilar epoetins and it affected patent and off-patent epoetins equally. Conclusions Switching between different epoetins was related to the duration of use and most episodes of switching involved epoetins that have never been contrasted in a comparability exercise. The present level of switching may provide reassurance to physicians when taken together with other sources of comparative evidence. Electronic supplementary material The online version of this article (doi:10.1007/s40259-015-0155-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Carmen D'Amore
- Pharmacoepidemiology Unit, National Centre for Epidemiology, National Institute of Health, Viale Regina Elena 299, 00161, Rome, Italy
| | - Roberto Da Cas
- Pharmacoepidemiology Unit, National Centre for Epidemiology, National Institute of Health, Viale Regina Elena 299, 00161, Rome, Italy
| | - Mariangela Rossi
- Unit for Pharmaceutical Governance, General Directorate for Health, Umbria Region, Perugia, Italy
| | - Giuseppe Traversa
- Pharmacoepidemiology Unit, National Centre for Epidemiology, National Institute of Health, Viale Regina Elena 299, 00161, Rome, Italy.
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37
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Gecse KB, Lakatos PL. Biosimilar Monoclonal Antibodies for Inflammatory Bowel Disease: Current Comfort and Future Prospects. Drugs 2016; 76:1413-1420. [DOI: 10.1007/s40265-016-0638-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Abstract
BACKGROUND Biosimilars are currently a hot topic and there are many unsolved questions, misunderstandings and sometimes considerable uncertainty, especially among clinicians and patients. Regulatory agencies, such as the European Medicines Agency (EMA) issue guidelines for the development and approval of biosimilars, which are based on scientific principles. OBJECTIVE This article addresses some of the frequently noted misunderstandings and misperceptions. For example, why biosimilars are (or can only be) "similar" but not "identical" compared to the original pharmaceutical product, and aspects, such as the pharmaceutical quality of biosimilars, immunogenicity and the approval process for biosimilars are highlighted.
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Affiliation(s)
- C K Schneider
- Abteilung Arzneimittelzulassung und -Zugänglichkeit, Danish Health and Medicines Authority, Axel Heides Gade 1, 2300, Kopenhagen, Dänemark. .,Biosimilar Medicinal Products Working Party (BMWP), Europäische Arzneimittelagentur, London, UK. .,TwincoreZentrum für Experimentelle und Klinische Infektionsforschung, Hannover, Deutschland.
| | - M Weise
- Biosimilar Medicinal Products Working Party (BMWP), Europäische Arzneimittelagentur, London, UK.,Fachgebiets Diabetes mellitus/Kardiovaskuläres System, Bundesinstitut für Arzneimittel und Medizinprodukte (BfArM), Bonn, Deutschland
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39
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Schreiber S, Panés J, Kwon B, Hong S, Peyrin-Biroulet L. Biosimilar infliximab for inflammatory bowel disease: from concepts to clinical practice. Case study illustrated with CT-P13. Expert Rev Gastroenterol Hepatol 2016; 9 Suppl 1:5-15. [PMID: 26395530 DOI: 10.1586/17474124.2015.1091304] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The introduction of biologic drugs represents the most significant advance in the management of immune-mediated inflammatory diseases for a decade. However, complex proteins are expensive to produce and manufacture. Biosimilar versions of established biologics are becoming available as another version of the reference medicinal product and are expected to provide substantial cost savings. However, because of their complexity, the approval of biosimilars requires strict controls to ensure that all therapeutically relevant characteristics are comparable to the reference medicinal product. This review summarizes the scientific principles and data requirements underpinning regulatory approval of biosimilars and the assumptions that enable extrapolation of data between indications. These important concepts are exemplified by CT-P13 (Remsima(®), Inflectra(®)), the first biosimilar monoclonal antibody approved in Europe.
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Affiliation(s)
- Stefan Schreiber
- a 1 Klinik für Innere Medizin I, Universitätsklinikum Schleswig-Holstein, Campus Kiel, Germany
| | - Julian Panés
- b 2 Hospital Clínic de Barcelona, IDIBAPS, CIBERehd, Barcelona, Spain
| | | | | | - Laurent Peyrin-Biroulet
- d 4 Inserm U954 and Department of Gastroenterology, Nancy University Hospital, Universite de Lorraine, Vandoeuvre-les-Nancy, France
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40
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Araújo FC, Gonçalves J, Fonseca JE. Pharmacoeconomics of Biosimilars: What Is There to Gain from Them? Curr Rheumatol Rep 2016; 18:50. [DOI: 10.1007/s11926-016-0601-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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41
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Braun J, Kudrin A. Switching to biosimilar infliximab (CT-P13): Evidence of clinical safety, effectiveness and impact on public health. Biologicals 2016; 44:257-266. [DOI: 10.1016/j.biologicals.2016.03.006] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2015] [Revised: 03/22/2016] [Accepted: 03/24/2016] [Indexed: 12/17/2022] Open
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Khraishi M, Stead D, Lukas M, Scotte F, Schmid H. Biosimilars: A Multidisciplinary Perspective. Clin Ther 2016; 38:1238-49. [PMID: 26988243 DOI: 10.1016/j.clinthera.2016.02.023] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Revised: 02/05/2016] [Accepted: 02/22/2016] [Indexed: 12/30/2022]
Abstract
A biosimilar is an officially regulated and approved copy of an originator biologic therapy. Improved affordability and consequent wider patient access compared with biologics are a significant appeal of biosimilars. Regulatory guidelines for biosimilar development and approval are rigorous and undergoing constant refinement. The process of licensing approval for all biosimilars requires demonstration of comparability in quality, efficacy, and safety between the biosimilar and reference (originator) product, which is undertaken in a stepwise procedure of nonclinical and clinical evaluation. The approval of >20 biosimilars in Europe in several drug classes, including the first monoclonal antibody biosimilar, bears testimony to the increasing regulatory acceptance of these agents. In contrast, the clinical application of biosimilars remains underrecognized by physicians across therapy areas. Therefore, this article aims to provide a comprehensive review of the biosimilar development process and to provide multidisciplinary guidance on the potential therapeutic utility of biosimilars in clinical practice. Specifically, experts discuss clinical developments in the introduction of biosimilars across the disciplines of gastroenterology, nephrology, oncology, and rheumatology, and from a payer perspective, and also highlight a common need for ongoing pharmacovigilance, robust head-to-head clinical studies, and real-world data to establish the long-term risk-benefit profile of biosimilars. In conclusion, significant potential exists for biosimilars to revolutionize biologic therapy by widening patient access across therapy areas.
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Affiliation(s)
- Majed Khraishi
- Clinical Professor of Medicine (Rheumatology), Memorial University of Newfoundland, Canada.
| | - David Stead
- Recently retired Medicines Procurement Specialist Pharmacist NHS South West and past Chairman of Pharmaceutical Market Support Group
| | - Milan Lukas
- IBD Clinical and Research Center, And 1st Medical Faculty, Charles University, Prague, Czech Republic
| | - Florian Scotte
- Medical Oncology and Supportive Care in Cancer Unit Georges Pompidou European Hospital, Paris, France
| | - Holger Schmid
- Clinic and Policlinic IV, Section of Nephrology, Munich University Hospital, Campus Innenstadt, Munich, Germany
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Dörner T, Strand V, Cornes P, Gonçalves J, Gulácsi L, Kay J, Kvien TK, Smolen J, Tanaka Y, Burmester GR. The changing landscape of biosimilars in rheumatology. Ann Rheum Dis 2016; 75:974-82. [PMID: 26964144 PMCID: PMC4893105 DOI: 10.1136/annrheumdis-2016-209166] [Citation(s) in RCA: 134] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Accepted: 02/18/2016] [Indexed: 12/30/2022]
Abstract
Biosimilars remain a hot topic in rheumatology, and some physicians are cautious about their application in the real world. With many products coming to market and a wealth of guidelines and recommendations concerning their use, there is a need to understand the changing landscape and the real clinical and health-economic potential offered by these agents. Notably, rheumatologists will be at the forefront of the use of biosimilar monoclonal antibodies/soluble receptors. Biosimilars offer cost savings and health gains for our patients and will play an important role in treating rheumatic diseases. We hope that these lower costs will compensate for inequities in access to therapy based on economic differences across countries. Since approved biosimilars have already demonstrated highly similar efficacy, it will be most important to establish pharmacovigilance databases across countries that are adequate to monitor long-term safety after marketing approval.
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Affiliation(s)
- Thomas Dörner
- Department of Medicine/Rheumatology and Clinical Immunology, Charité Universitätsmedizin, Berlin, Germany Deutsches Rheumaforschungszentrum (DRFZ), Berlin, Germany
| | - Vibeke Strand
- Division Immunology/Rheumatology, Stanford University School of Medicine, Palo Alto, California, USA
| | | | - João Gonçalves
- Faculty of Pharmacy at University of Lisbon, iMed- Research Institute for Medicines, Portugal
| | - László Gulácsi
- Department of Health Economics, Corvinus University of Budapest, Budapest, Hungary
| | - Jonathan Kay
- Division of Rheumatology, Department of Medicine, University of Massachusetts Medical School and UMass Memorial Medical Center, Worcester, Massachusetts, USA
| | - Tore K Kvien
- Department of Rheumatology, Diakonhjemmet Hospital, Oslo, Norway
| | - Josef Smolen
- Division of Rheumatology, Department of Medicine 3, Medical University of Vienna, Vienna, Austria Department of Medicine, Hietzing Hospital, Vienna, Austria
| | - Yoshiya Tanaka
- The First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Gerd R Burmester
- Department of Medicine/Rheumatology and Clinical Immunology, Charité Universitätsmedizin, Berlin, Germany
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Renwick MJ, Smolina K, Gladstone EJ, Weymann D, Morgan SG. Postmarket policy considerations for biosimilar oncology drugs. Lancet Oncol 2016; 17:e31-8. [DOI: 10.1016/s1470-2045(15)00381-2] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Revised: 09/27/2015] [Accepted: 09/28/2015] [Indexed: 11/26/2022]
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Müller-Ladner U, Hong S, Oh C, Taylor P. Scientific rationale behind the development and approval of biosimilar infliximab (CT-P13) in Europe. Expert Rev Clin Immunol 2015; 11 Suppl 1:S5-14. [DOI: 10.1586/1744666x.2015.1090310] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Abad Hernández MÁ, Andreu JL, Caracuel Ruiz MÁ, Belmonte Serrano MÁ, Díaz-González F, Moreno Muelas JV. Documento de posicionamiento de la Sociedad Española de Reumatología sobre fármacos biosimilares. ACTA ACUST UNITED AC 2015; 11:269-78. [DOI: 10.1016/j.reuma.2015.03.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Accepted: 03/06/2015] [Indexed: 02/09/2023]
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Covic A, Abraham I. State-of-the-art biosimilar erythropoietins in the management of renal anemia: lessons learned from Europe and implications for US nephrologists. Int Urol Nephrol 2015. [DOI: 10.1007/s11255-015-1042-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Abstract
Approval of the first biosimilar in the USA may occur by the end of 2014, yet a naming approach for biosimilars has not been determined. Biosimilars are highly similar to their biologic reference product but are not identical to it, because of their structural complexity and variations in manufacturing processes among companies. There is a need for a naming approach that can distinguish a biosimilar from its reference product and other biosimilars and ensure accurate tracing of adverse events (AEs) to the administered product. In contrast, generic small-molecule drugs are identical to their reference product and, therefore, share the same nonproprietary name. Clinical trials required to demonstrate biosimilarity for approval may not detect rare AEs or those occurring after prolonged use, and the incidence of such events may differ between a biosimilar and its reference product. The need for precise biologic identification is further underscored by the possibility of biosimilar interchangeability, a US designation that will allow substitution without prescriber intervention. For several biologics, the US Food and Drug Administration (FDA) has used a naming approach that adds a prefix to a common root nonproprietary name, enabling healthcare providers to distinguish between products, avoid medication errors, and facilitate pharmacovigilance. We recommend that the FDA implement a biosimilars naming policy that likewise would add a distinguishable prefix or suffix to the root nonproprietary name of the reference product. This approach would ensure that a biosimilar could be distinguished from its reference product and other biosimilars in patient records and pharmacovigilance databases/reports, facilitating accurate attribution of AEs.
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Abstract
BACKGROUND The management of anaemia in patients with chronic kidney disease has been transformed by development of erythropoiesis-stimulating agents (ESAs). Following expiry of the patent of the originator epoetin alfa in Europe, a number of biosimilar ESAs have been licensed for use in the nephrology setting. Biosimilars are biological medicines that are approved via stringently defined regulatory pathways on the basis that they have demonstrated comparable safety, efficacy and quality to their reference product. OBJECTIVES As nurses have a pivotal role in patient care, not only administering medications but also educating patients about their treatment options, it is important that nurses understand the differences between biosimilar medicines and their reference products and appreciate the stringent regulatory requirements for approval of biosimilars. METHODS In this review, we use epoetin zeta as a case study to highlight practical considerations of using biosimilar ESAs in the management of patients with kidney disease. RESULTS AND CONCLUSION Biosimilar products, such as epoetin zeta, may offer a range of features to patients, nurses and physicians, such as greater flexibility over dose and route of administration, in addition to greater access to biological medicines through cost savings. APPLICATION TO PRACTICE Renal nurses play a significant role in the management of patients with kidney disease and anaemia, not only having an important role in the delivery of medicine but also in the education of patients. This review discusses some of the practical aspects associated with the use of biosimilar medicines to assist nurses in making informed decisions over their use.
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Affiliation(s)
- Paul Wilson
- Darent Valley Hospital, Darenth Wood Road, Dartford, Kent, UK
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