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Rieger C, Dean JA, Hall L, Vasquez P, Merlo G. Barriers and Enablers Affecting the Uptake of Biosimilar Medicines Viewed Through the Lens of Actor Network Theory: A Systematic Review. BioDrugs 2024; 38:541-555. [PMID: 38879730 PMCID: PMC11247062 DOI: 10.1007/s40259-024-00659-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/26/2024] [Indexed: 07/16/2024]
Abstract
BACKGROUND AND OBJECTIVE Biosimilars represent an opportunity to realise savings against the costs of innovative medicines. Despite efforts made by stakeholders, there are numerous barriers to the uptake of biosimilars. To realise the promise of biosimilars reducing costs, barriers must be identified, understood, and overcome, and enablers magnified. The aim of this systematic review is to summarise the enablers and barriers affecting uptake of biosimilars through the application of a classification system to organise them into healthcare professional (HCP), patient, or systemic categories. METHODS A systematic literature search was performed in PubMed, Scopus, CINAHL, eConlit, and Embase. Included were primary research studies published in English between Jan 2017 through June 2023 focused on enablers and barriers affecting uptake of biosimilars. Excluded studies comprised comparisons of biosimilar efficacy and safety versus the reference biologic. One reviewer extracted data that included classification of barriers or enablers, the sub-classification, and the identification of the degree of agency associated with the actor through their role and associations as a mediator within their network, through the application of Actor Network Theory. The data were validated by a second reviewer (PV). RESULTS Of the 94 studies included, 59 were cross-sectional, 20 were qualitative research, 12 were cohort studies, and three were economic evaluations. Within the review, 51 of the studies included HCP populations and 35 included patients. Policies and guidelines were the most cited group of enablers, overall. Systemic enablers were addressed in 29 studies. For patients, the most frequently cited enabler was positive framing of a biosimilar, while for HCPs, cost benefit was the most frequently noted enabler. The most frequently discussed systemic barrier to biosimilar acceptance was lack of effective policies or guidelines, followed by lack of financial incentives, while the most significant barriers for HCPs and patients, respectively, were their lack of general knowledge about biosimilars and concerns about safety and efficacy. Systemic actors and HCPs most frequently acted with broad degree of agency as mediators, while patient most frequently acted with a narrow degree of agency as mediators within their networks. CONCLUSIONS Barriers and enablers affecting uptake of biosimilars are interconnected within networks, and can be divided into systemic, HCP, and patient categories. Understanding the agency of actors within networks may allow for more comprehensive and effective approaches. Systemic enablers in the form of policies appear to be the most effective overall levers in affecting uptake of biosimilars, with policy makers advised to give careful consideration to appropriately educating HCPs and positively framing biosimilars for patients.
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Affiliation(s)
- Chad Rieger
- Faculty of Medicine, University of Queensland, Brisbane, Australia.
| | - Judith A Dean
- Faculty of Medicine, School of Public Health, University of Queensland, Brisbane, Australia
| | - Lisa Hall
- Faculty of Medicine, School of Public Health, University of Queensland, Brisbane, Australia
| | - Paola Vasquez
- Centre for Health Services Research, University of Queensland, Brisbane, Australia
| | - Gregory Merlo
- Faculty of Medicine, School of Public Health, University of Queensland, Brisbane, Australia
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Alnaqbi KA, Al Adhoubi N, Aldallal S, Al Emadi S, Al-Herz A, El Shamy AM, Hannawi S, Omair MA, Saad SA, Kvien TK. Consensus-Based Overarching Principles and Recommendations on the Use of Biosimilars in the Treatment of Inflammatory Arthritis in the Gulf Region. BioDrugs 2024; 38:449-463. [PMID: 38402494 PMCID: PMC11055752 DOI: 10.1007/s40259-023-00642-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/28/2023] [Indexed: 02/26/2024]
Abstract
BACKGROUND Though biologic agents have significantly improved the treatment of inflammatory arthritis (rheumatoid arthritis, psoriatic arthritis, and axial spondyloarthritis), high costs, stringent regulations, strict reimbursement criteria, and existing patents have limited patient access to treatments. While being highly similar in quality, safety, and efficacy to biologic reference products, biosimilars can reduce the financial burden and prevent underutilization of medication. OBJECTIVE The objective of this initiative was to develop an evidence-based consensus of overarching principles and recommendations aimed at standardizing the use of biosimilars in treating inflammatory arthritis in the Gulf region. METHODS A task force of practicing rheumatologists, a clinical pharmacist, a health economist, patients, regulators, and payors from across the Gulf region developed recommendations and overarching principles based on the outputs of a systematic literature review conducted to address Patient-Intervention-Comparison-Outcome (PICO) questions specific to key challenges regarding the use of biosimilars for the treatment of inflammatory arthritis in the region. As the data before 2017 have been previously reviewed in another publication, the current review focused on data published between January 2017 and August 2022 (PROSPERO ID CRD42022364002). Consensus on each statement required a level of agreement of 70% or greater. RESULTS Consensus was reached for five overarching principles and nine recommendations by the task force. The principles emphasize the importance of improving the awareness, understanding, and perception of biosimilars, as well as the need for regulated regional real-world data generation and protocols to make biosimilars a viable and affordable treatment option for all patients. The consensus recommendations advocate the need for shared treatment decisions between rheumatologists and patients when considering biosimilars. They further recommend that confirmation of a biosimilar's efficacy and safety in a single indication is sufficient for extrapolation to other diseases for which the reference product has been approved. Finally, there is a need for pharmacovigilance and national health policies governing the adoption and prescription of biosimilars in clinical practice across the region. CONCLUSIONS These are the first consensus recommendations for the Gulf region based on a systematic literature review and Preferred Reporting Items for Systematic Review and Meta-analysis (PRISMA) guidelines, integrating clinical evidence with clinical expertise to optimize decision making for the use of biosimilars in patients with inflammatory arthritis. They were formulated based on predominantly international data because of the limited regional data and therefore can be generalized to serve as recommendations for healthcare professionals in other parts of the world.
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Affiliation(s)
- Khalid A Alnaqbi
- Rheumatology Division, Tawam Hospital, Al Ain, UAE.
- Internal Medicine Department, College of Medicine and Health Sciences, UAE University, Al Ain, UAE.
| | | | - Sara Aldallal
- Dubai Health Authority, Dubai, UAE
- Emirates Health Economics Society, Dubai, UAE
| | - Samar Al Emadi
- Medicine Department, Rheumatology Division, Hamad Medical Corporation, Doha, Qatar
| | - Adeeba Al-Herz
- Rheumatology Department, Al-Amiri Hospital, Kuwait City, Kuwait
| | | | | | - Mohammed A Omair
- Rheumatology Unit, Department of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Sahar A Saad
- King Hamad University Hospital, Busaiteen, Kingdom of Bahrain
| | - Tore K Kvien
- Center for Treatment of Rheumatic and Musculoskeletal Diseases (REMEDY), Diakonhjemmet Hospital, Oslo, Norway
- Faculty of Medicine, University of Oslo, Oslo, Norway
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Malakar S, Gontor EN, Dugbaye MY, Shah K, Sinha S, Sutaoney P, Chauhan NS. Cancer treatment with biosimilar drugs: A review. CANCER INNOVATION 2024; 3:e115. [PMID: 38946928 PMCID: PMC11212292 DOI: 10.1002/cai2.115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 12/04/2023] [Accepted: 12/11/2023] [Indexed: 07/02/2024]
Abstract
Biosimilars are biological drugs created from living organisms or that contain living components. They share an identical amino-acid sequence and immunogenicity. These drugs are considered to be cost-effective and are utilized in the treatment of cancer and other endocrine disorders. The primary aim of biosimilars is to predict biosimilarity, efficacy, and treatment costs; they are approved by the Food and Drug Administration (FDA) and have no clinical implications. They involve analytical studies to understand the similarities and dissimilarities. A biosimilar manufacturer sets up FDA-approved reference products to evaluate biosimilarity. The contribution of next-generation sequencing is evolving to study the organ tumor and its progression with its impactful therapeutic approach on cancer patients to showcase and target rare mutations. The study shall help to understand the future perspectives of biosimilars for use in gastro-entero-logic diseases, colorectal cancer, and thyroid cancer. They also help target specific organs with essential mutational categories and drug prototypes in clinical practices with blood and liquid biopsy, cell treatment, gene therapy, recombinant therapeutic proteins, and personalized medications. Biosimilar derivatives such as monoclonal antibodies like trastuzumab and rituximab are common drugs used in cancer therapy. Escherichia coli produces more than six antibodies or antibody-derived proteins to treat cancer such as filgrastim, epoetin alfa, and so on.
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Affiliation(s)
- Shilpa Malakar
- Department of MicrobiologyKalinga UniversityRaipurChhattisgarhIndia
| | | | - Moses Y. Dugbaye
- Department of MicrobiologyKalinga UniversityRaipurChhattisgarhIndia
| | - Kamal Shah
- Institute of Pharmaceutical ResearchGLA UniversityMathuraUttar PradeshIndia
| | - Sakshi Sinha
- Department of MicrobiologyKalinga UniversityRaipurChhattisgarhIndia
| | - Priya Sutaoney
- Department of MicrobiologyKalinga UniversityRaipurChhattisgarhIndia
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Abstract
Adverse nocebo responses can cause harm to patients and interfere with treatment adherence and effects in both clinic practice and clinical trials. Nocebo responses refer to negative outcomes to active medical treatments in clinical trials or practice that cannot be explained by the treatment's pharmacologic effects. Negative expectancies and nocebo effects are less known than placebo responses. Nocebo effects can be triggered by verbal suggestions, prior negative experiences, observation of others experiencing negative outcomes, and other contextual and environmental factors. As research advances over the years, mechanistic knowledge is accumulating on the neurobiological mechanisms of nocebo effects. This review summarizes studies on different facets of nocebo effects and responses and discusses clinical implications, ethical considerations, and future directions.
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Affiliation(s)
- Luana Colloca
- Department of Pain and Translational Symptom Science and Placebo Beyond Opinions Center, School of Nursing, University of Maryland, Baltimore, Maryland, USA;
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Wu Q, Wang Z, Wang X, Yu H, Sun J. Patients' Perceptions of Biosimilars: A Systematic Review. BioDrugs 2023; 37:829-841. [PMID: 37676537 DOI: 10.1007/s40259-023-00620-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/08/2023] [Indexed: 09/08/2023]
Abstract
OBJECTIVE To systematically summarize and evaluate the findings of existing studies about patients' perceptions of biosimilars by assessing their attitudes and knowledge. METHODS We conducted a systematic review of published studies concerning patients' perceptions of biosimilars, using databases of China National Knowledge Infrastructure, SinoMed, Web of Science, PubMed, Embase, and Cochrane Library. Two independent reviewers screened a total of 2197 Chinese or English papers published between 1 January 2018, and 1 October 2022. We assessed the quality of the included studies by applying the Joanna Briggs Institute appraisal tools. RESULTS Forty-three studies were included in the review, with the majority originating from Europe (n = 22) and North America (n = 10). Of these studies, 37 were cross-sectional quantitative studies, three were quasi-experimental studies, and the remaining three were qualitative studies based on semi-structured interviews. The sample sizes of the included studies ranged from 9 to 6554 patients. Twenty-two out of 31 studies investigating patients' acceptance of biosimilars found that most participants expressed satisfaction with treatment using biosimilars. However, doubts about the clinical effects and regulatory approval pathway could negatively influence patients' attitudes. The majority of patients understood the economic advantages of biosimilars; however, some incorrectly connected lower prices with lower quality. Patients generally lacked knowledge about biosimilars. There were 6-51% of participants who were familiar with biosimilars, and 25-58% thought they did not know enough about biosimilars. Physicians, pharmacists, medicines agencies, academia, and patient associations were identified as the main sources of information on biosimilars for patients. Healthcare providers not informing or advising patients about switching may hinder patients from acquiring enough knowledge. CONCLUSIONS The majority of patients expressed satisfaction with treatment using biosimilars, but limited knowledge continued to impede their perceptions. Doubts about the clinical effects and regulatory approval pathway were identified as major factors that negatively influenced patients' attitudes towards biosimilars, while the impact of a price advantage was mixed. It is essential to maintain a focus on educating healthcare professionals about biosimilars, including their clinical outcomes and the regulatory pathway, which equips them to provide comprehensive and informed guidance to patients.
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Affiliation(s)
- Qiyou Wu
- School of Health Policy and Management, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Zhitao Wang
- School of Health Policy and Management, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xin Wang
- School of Health Policy and Management, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hui Yu
- Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou, Fujian, China
| | - Jing Sun
- School of Health Policy and Management, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
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Wilson N, Liu J, Adamjee Q, Di Giorgio S, Steer S, Hutton J, Lempp H. Exploring the emotional impact of axial Spondyloarthritis: a systematic review and thematic synthesis of qualitative studies and a review of social media. BMC Rheumatol 2023; 7:26. [PMID: 37608395 PMCID: PMC10464274 DOI: 10.1186/s41927-023-00351-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 08/07/2023] [Indexed: 08/24/2023] Open
Abstract
BACKGROUND The psychological burden in people with inflammatory arthritis is substantial, yet little is known about the disease-related affect experienced by individuals with axial Spondyloarthritis (axial SpA). The aim of this study was to conduct a qualitative evidence synthesis and a review of social media to explore the emotional impact of living with axial SpA. METHODS We searched nine databases for studies reporting qualitative data about participants' emotional experience of living with axial SpA. In addition, we searched social media platforms for posts from people with axial SpA based in the UK that offered insights into emotional responses to living with the condition. We employed a thematic approach to synthesise the data. RESULTS We included 27 studies (1314 participants; 72% men) in our qualitative evidence synthesis and developed seven descriptive themes from the data: 1) delayed diagnosis: a barrier to emotional wellbeing; 2) disruptive symptoms: a source of mood swings; 3) work disability: a loss of self-esteem; 4) obstacles in interpersonal relationships: a trigger of distress; 5) taking up exercise: personal pride or unwelcomed reminders; 6) anti-TNF therapy: hope reignited despite concerns and 7) a journey of acceptance: worry mixed with hope. Posts extracted from social media fora (537; 48% from women) for the most part supported the seven themes. One additional theme-COVID-19, uncertainty and anxiety during the pandemic, was developed, reflecting common emotions expressed during the UK's first wave of the coronavirus pandemic. CONCLUSION This study highlights a preponderance of negative affect experienced by people living with axial SpA, conditioned through existing and anticipated symptoms, failed expectations, and lost sense of self. Given the bidirectional relationships between negative emotions and inflammation, negative emotions and perceptions of pain, and the influence of affect in self-care behaviours, this finding has important implications for treatment and management of people with axial SpA.
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Affiliation(s)
- Nicky Wilson
- Department of Rheumatology, King's College Hospital NHS Foundation Trust, London, UK.
| | - Jia Liu
- Centre for Education, Faculty of Life Sciences & Medicine, King's College London, London, UK
| | - Qainat Adamjee
- GKT School of Medical Education, King's College London, London, UK
| | - Sonya Di Giorgio
- King's College London Libraries & Collections, King's College London, London, UK
| | - Sophia Steer
- Department of Rheumatology, King's College Hospital NHS Foundation Trust, London, UK
| | - Jane Hutton
- Department of Clinical Health Psychology, Liverpool University Hospitals NHS Foundation Trust, Liverpool, UK
| | - Heidi Lempp
- Department of Inflammation Biology, Centre for Rheumatic Diseases, School of Immunology and Microbial Sciences, Faculty of Life Sciences & Medicine, King's College London, London, UK
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Gasteiger C, Perera A, Yielder R, Scholz U, Dalbeth N, Petrie KJ. Using family-centered communication to optimize patient-provider-companion encounters about changing to biosimilars: A randomized controlled trial. PATIENT EDUCATION AND COUNSELING 2023; 106:142-150. [PMID: 36400636 DOI: 10.1016/j.pec.2022.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 10/27/2022] [Accepted: 11/07/2022] [Indexed: 06/16/2023]
Abstract
OBJECTIVE To explore whether family-centered communication impacts decisions and optimizes patient-companion-provider consultations. METHODS A parallel, two-arm randomized controlled trial was conducted with 108 participants acting as patients with inflammatory arthritis or companions. Pairs attended a mock consultation where a physician explained the change from a bio-originator to a biosimilar using family-centered or patient-only communication. Participants reported their willingness to transition, risk perceptions, understanding and social support, and completed various scales including the Patient Perception Scale. Interviews helped understand perceptions towards the consultation. RESULTS Family-centered communication did not impact willingness to change or cognitive risk perceptions compared to patient-only communication. However, it improved emotional risk perceptions (p = 0.047, Cohen's d=.55) and satisfaction with communication (p = 0.015, Cohen's d=.71). Feeling the explanation was reassuring was associated with less worry (p = 0.004). Receiving emotional support (p = 0.014) and companions asking fewer questions (p = 0.046) were associated with higher recall. The intervention improved companion involvement (p < 0.001, Cohen's d= 1.23) and support (p = 0.002, Cohen's d=.86). Interviews showed that encouraging questions, inclusive body language, and acknowledging companions facilitated involvement. CONCLUSION Family-centered communication augments patient-companion-provider encounters but does not influence willingness to change treatment. PRACTICE IMPLICATIONS Practitioners can use family-centered communication when discussing biosimilars but should provide reassurance, encourage emotional support, and summarize key points to improve understanding.
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Affiliation(s)
- Chiara Gasteiger
- Department of Psychological Medicine, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand.
| | - Anna Perera
- School of Medicine, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Rachael Yielder
- Department of Psychological Medicine, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Urte Scholz
- University Research Priority Program "Dynamics of Healthy Aging," University of Zurich, Zurich, Switzerland; Department of Psychology - Applied Social and Health Psychology, University of Zurich, Zurich, Switzerland
| | - Nicola Dalbeth
- Department of Medicine, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand; Department of Rheumatology, Auckland District Health Board, Auckland, New Zealand
| | - Keith J Petrie
- Department of Psychological Medicine, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
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Hirata I, Hanaoka S, Rokutanda R, Funakoshi R, Hayashi H. Shared decision-making practices and patient values in pharmacist outpatient care for rheumatic disease: A multiple correspondence analysis. JOURNAL OF PHARMACY & PHARMACEUTICAL SCIENCES : A PUBLICATION OF THE CANADIAN SOCIETY FOR PHARMACEUTICAL SCIENCES, SOCIETE CANADIENNE DES SCIENCES PHARMACEUTIQUES 2023; 26:11135. [PMID: 36942300 PMCID: PMC9990622 DOI: 10.3389/jpps.2023.11135] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 12/02/2022] [Indexed: 01/22/2023]
Abstract
Purpose: To investigate the value-to-value relationships, relationship between values and patient background, continuation rate of treatment after shared decision-making (SDM), and disease status in order to clarify the values involved in drug therapy decisions for patients with rheumatic disease. Methods: We investigated patient values (efficacy of drug therapy [effectiveness], safety, economics, daily life, and other) and the continuance rate and disease status of treatment after 6 months in 94 patients with rheumatic disease aged ≥18 years who made decisions with pharmacists and physicians in the pharmacy outpatient clinic between September 2019 and April 2021. Multiple correspondence and K-means cluster analyses were performed to show the relationship between values and basic patient information. Results: Among the selected patients, 87% and 47% selected effectiveness for multiple selections and single selection, respectively. Effectiveness was at the center of the graph; three clusters containing other values were placed around it. History of allergy or side effects caused by biologics or Janus kinase inhibitors were in the safety cluster. The non-usage history of biologics or Janus kinase inhibitors was in the economic cluster. Conclusion: Effectiveness was the most important factor for patients with rheumatic disease; the values that patients consider important may shift from effectiveness to other values based on each patient's subjective experience with the treatment and/or the stage of life in which they were treated. It is important to positively link patient values and information about the treatment plan in shared decision-making while establishing rapport with the patient.
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Affiliation(s)
- Ikkou Hirata
- Department of Pharmacy, Kameda General Hospital, Chiba, Japan
| | - Shunsuke Hanaoka
- Department of Clinical Pharmacotherapy, School of Pharmacy, Nihon University, Chiba, Japan
- *Correspondence: Shunsuke Hanaoka,
| | - Ryo Rokutanda
- Department of Rheumatology, Kameda General Hospital, Chiba, Japan
| | | | - Hiroyuki Hayashi
- Department of Clinical Pharmacotherapy, School of Pharmacy, Nihon University, Chiba, Japan
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Gall S, Kiltz U, Kobylinski T, Andreica I, Vaupel K, Waldecker C, Baraliakos X, Braun J. Patient knowledge about biosimilars and satisfaction with the education provided by rheumatologists or nurse specialists in a biosimilar multiswitch scenario – The perception study. Semin Arthritis Rheum 2022; 57:152119. [DOI: 10.1016/j.semarthrit.2022.152119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 10/13/2022] [Accepted: 10/19/2022] [Indexed: 11/19/2022]
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Kiltz U, Tsiami S, Baraliakos X, Andreica I, Kiefer D, Braun J. Effectiveness and safety of a biosimilar-to-biosimilar switch of the TNF inhibitor etanercept in patients with chronic inflammatory rheumatic diseases. Ther Adv Musculoskelet Dis 2022; 14:1759720X221119593. [PMID: 36051634 PMCID: PMC9424877 DOI: 10.1177/1759720x221119593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 07/28/2022] [Indexed: 11/16/2022] Open
Abstract
Background: Biosimilar disease-modifying anti-rheumatic drugs (bsDMARDs) has created a
financial incentive to encourage switching to cheaper products. Objectives: We aim to study the effectiveness and safety of a non-medical
bsDMARD-to-bsDMARD switch from originator etanercept (ETN) to bsDMARD ETN
(SB4) and successive to another bsDMARD ETN (GP2015) in patients with
chronic inflammatory rheumatic diseases in a real-life setting. Methods: Retrospective chart review of patients with rheumatoid arthritis (RA),
psoriatic arthritis (PsA) or axial spondyloarthritis (axSpA) who had been
treated with originator ETN and were switched twice to ETN bsDMARD for
non-medical reasons thereafter. All patients received ETN 50 mg/week.
Disease activity and physical function was assessed every 12 weeks with
standardized questionnaires. Results: A total of 100 patients who switched twice [54 RA, 27 axSpA, 19 PsA, mean age
54.3 (15.1), 46% male] were included. Patients with axSpA were younger than
RA and PsA patients. Patients with SpA were less likely to receive
conventional synthetic disease-modifying antirheumatic drugs (csDMARDs) than
RA patients. Duration of treatment with originator ETN before the first
switch was 3.3 (2.3) years. Retention rate 6 months after the second ETN
bsDMARD switch was 89%. Disease activity and physical function scores
remained rather unchanged in patients with RA and axSpA longitudinally,
while there was some more fluctuation in PsA patients. Six patients lost
efficacy and were switched back to originator ETN in month 6
(n = 4) or to another mode of action
(n = 2). There were 14 adverse events (AE) reported in
eight patients. One patient re-administered bsDMARD GP2015 successfully
3 months after healing of mucosal erosions. Conclusion: No relevant change in disease activity and physical function were observed in
a non-medical bsDMARD-to-bsDMARD switch scenario. The retention rate after
switches from originator ETN to two ETN bsDMARD was close to 90%. Multiple
switches resulted in a high adherence rate without clinically important
efficacy or safety signals.
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Affiliation(s)
- Uta Kiltz
- Rheumazentrum Ruhrgebiet, Claudiusstrasse 45, 44649 Herne, Germany.,Ruhr-Universität Bochum, Bochum, Germany
| | - Styliani Tsiami
- Rheumazentrum Ruhrgebiet, Herne, Germany.,Ruhr-Universität Bochum, Bochum, Germany
| | - Xenofon Baraliakos
- Rheumazentrum Ruhrgebiet, Herne, Germany.,Ruhr-Universität Bochum, Bochum, Germany
| | - Ioana Andreica
- Rheumazentrum Ruhrgebiet, Herne, Germany.,Ruhr-Universität Bochum, Bochum, Germany
| | - David Kiefer
- Rheumazentrum Ruhrgebiet, Herne, Germany.,Ruhr-Universität Bochum, Bochum, Germany
| | - Jürgen Braun
- Rheumazentrum Ruhrgebiet, Herne, Germany.,Ruhr-Universität Bochum, Bochum, Germany
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Horta-Baas G. Patient-Reported Outcomes in Rheumatoid Arthritis: A Key Consideration for Evaluating Biosimilar Uptake? Patient Relat Outcome Meas 2022; 13:79-95. [PMID: 35388274 PMCID: PMC8977480 DOI: 10.2147/prom.s256715] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Accepted: 03/16/2022] [Indexed: 11/30/2022] Open
Abstract
Purpose This review aims to provide an overview of the impact of TNFis biosimilars, with marketing authorization, in patient-reported outcome measures (PROMs) scores and explore how PROMs endpoints might add value in biosimilars uptake in RA patients. Patients and Methods A comprehensive search of Medline, Scopus, Lilacs, and CINAHL databases was performed for papers published between January 2012 and December 2021. For inclusion, studies had to be prospective, published in a peer-reviewed journal, published in English or Spanish language; studies using PROMs as an outcome measure. After screening title and abstracts and assessing the remaining full texts fulfilling the inclusion criteria, 31 papers were used in this narrative review. Results PROMs were used as secondary outcomes in included studies. The most frequently employed domains to assess biosimilar efficacy include physical function, patient global assessment (PtGA), health-related quality of life (HRQoL), and fatigue. The results of randomized clinical trials uniformly showed that mean change in PROMs scores is comparable between biosimilar and reference biologic treatment groups. However, open-label and real-world studies revealed high rates of discontinuation of therapy, mainly for subjective worsening of disease activity or non-specific adverse events. Even without objective clinical evidence of inflammation, patients who are considered to have active disease (higher scores on PtGA) have higher discontinuation rates of biosimilars. The available information suggests that the nocebo effect is the most likely cause for the discontinuation of biosimilars. Conclusion There is scarce literature surrounding the impact of biosimilars in PROMs, especially in open-label studies. In real-life studies, biosimilars have a higher discontinuation rate than reference products. TNFis biosimilars treatment efficacy in RA depends on disease activity and other factors such as PtGA and fatigue. The nocebo effect is the best explanation for biosimilar's discontinuation.
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Affiliation(s)
- Gabriel Horta-Baas
- Rheumatology Department, Hospital General Regional # 1, Instituto Mexicano del Seguro Social, Merida, Yucatan, Mexico
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Gasteiger C, Petrie KJ. Moving forward: Implementing health psychology research to improve patient acceptance of biosimilars. Res Social Adm Pharm 2022; 18:3860-3863. [PMID: 35339394 DOI: 10.1016/j.sapharm.2022.03.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 02/22/2022] [Accepted: 03/17/2022] [Indexed: 12/25/2022]
Abstract
As more biosimilars enter the pharmaceutical market, patient acceptance remains a significant barrier to their uptake. Psychological factors, such as negative expectations, are important causes of patient hesitancy. As a result, patients can develop nocebo responses following a transition, discontinue biosimilar treatment early, or have poor adherence. These negative outcomes may offset some of the cost-saving potential of biosimilars. Key healthcare professionals such as pharmacists, physicians, and nurses already play a noteworthy role in educating and transitioning patients. However, given the psychological aspect of biosimilar acceptance, it is logical for healthcare professionals and researchers to draw on research and theory from health psychology. This commentary outlines how a multidisciplinary approach can add to the understanding of the mechanisms behind patient resistance to biosimilars and help engage patients in the transitioning process. It also explores how health psychology strategies that have been successful in similar areas can be translated to help conduct more effective transitions. Future directions in research are discussed.
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Affiliation(s)
- Chiara Gasteiger
- Department of Psychological Medicine, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand.
| | - Keith J Petrie
- Department of Psychological Medicine, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
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13
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Vandenplas Y, Barbier L, Simoens S, Van Wilder P, Vulto AG, Huys I. Perceptions About Biosimilar Medicines Among Belgian Patients in the Ambulatory Care. Front Pharmacol 2022; 12:789640. [PMID: 35069205 PMCID: PMC8766979 DOI: 10.3389/fphar.2021.789640] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 12/13/2021] [Indexed: 11/30/2022] Open
Abstract
Background and objectives: Biosimilar medicines have been on the European market for 15 years. Despite the extensive and positive experience with biosimilars across Europe, their uptake remains limited in Belgium. One of the possible factors limiting uptake in clinical practice is the inadequate understanding and lack of trust in biosimilars among patients. This study aimed to assess the level of knowledge and perceptions about biosimilar medicines among Belgian patients in the ambulatory care. Methods: This study consisted of online questionnaires among Belgian patients in the ambulatory care (i.e., rheumatoid arthritis, ankylosing spondylitis, psoriatic arthritis, plaque psoriasis, Crohn's disease, ulcerative colitis, diabetes mellitus type I and II). The results were collected between December 2020 and February 2021. The data were analyzed with descriptive and inferential statistics. Results: In total, 657 patients across all disease areas of interest participated in this study. Only 38% of patients had heard of biosimilars before. Of those patients, most (58%) were aware that biosimilars are as safe and effective as their reference product. The vast majority of respondents (68%) would agree with transitioning to a biosimilar if their physician prescribed it, only 3% would never agree with a transition to a biosimilar. If a physician would propose to change their current originator biological therapy with its biosimilar, nearly all patients (95%) want their physician to explain the decision and inform them. For additional information about biosimilars, Belgian patients prefer brochures or folders (41%), or available resources on the internet (35%). Physicians were indicated as the preferred source of information (95%), followed by pharmacists (51%), academia (39%), and patient associations (35%). Most patients require information regarding the safety and efficacy (78%), price and reimbursement (64%), and the clinical development process (56%) of the biosimilar. Conclusion: Belgian patients require information about biosimilar medicines. However, most patients are open and positive towards transitioning their current biological therapy with its biosimilar if sufficiently supported by their healthcare providers.
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Affiliation(s)
- Yannick Vandenplas
- Department of Pharmaceutical and Pharmacological Sciences, Clinical Pharmacology and Pharmacotherapy, KU Leuven, Leuven, Belgium
| | - Liese Barbier
- Department of Pharmaceutical and Pharmacological Sciences, Clinical Pharmacology and Pharmacotherapy, KU Leuven, Leuven, Belgium
| | - Steven Simoens
- Department of Pharmaceutical and Pharmacological Sciences, Clinical Pharmacology and Pharmacotherapy, KU Leuven, Leuven, Belgium
| | - Philippe Van Wilder
- Ecole de Santé Publique, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Arnold G. Vulto
- Department of Pharmaceutical and Pharmacological Sciences, Clinical Pharmacology and Pharmacotherapy, KU Leuven, Leuven, Belgium
- Hospital Pharmacy, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Isabelle Huys
- Department of Pharmaceutical and Pharmacological Sciences, Clinical Pharmacology and Pharmacotherapy, KU Leuven, Leuven, Belgium
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Gasteiger C, Scholz U, Petrie KJ, Dalbeth N. A bio-what? Medical companions' perceptions towards biosimilars and information needs in rheumatology. Rheumatol Int 2021; 42:1993-2002. [PMID: 34705051 DOI: 10.1007/s00296-021-05037-5] [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: 09/08/2021] [Accepted: 10/18/2021] [Indexed: 11/29/2022]
Abstract
Patient perceptions influence biosimilar uptake in non-mandatory transitions. Companions (support people) are often actively involved in the patient's medical journey and are likely to have unique perceptions of biosimilars, which may shape patient attitudes. This study explores the congruence between patient and companion perceptions towards biosimilars and their information needs. Patients taking bio-originators for rheumatic diseases (59% for rheumatoid arthritis) and their companions received an explanation about biosimilars. Participants (N = 78) completed questionnaires assessing their familiarity with biosimilars, perceptions, concerns, and benefits of being accompanied. Contingency tables and paired sample t-tests were used to explore differences in familiarity, confidence in knowledge, and perceptions. Intra-class correlation coefficients were calculated to assess the degree of congruence for perceptions towards biosimilars. Companions were significantly less familiar with biosimilars (p = 0.014, Cramer's V = 0.28) and reported lower confidence in their knowledge (p = 0.006, Cohen's d = 0.47) than patients. Companions and patients had moderate to good congruency for perceptions toward confidence in biosimilar use and safety, efficacy, and side-effect expectations (intra-class correlation coefficients ranging from 0.75 to 0.81). Companions and patients were most concerned about safety and effectiveness. Companions also reported concerns about cost savings driving the transition, while patients had concerns about uncertainty and testing. Patients reported the ability for discussion, improved understanding, and validation as benefits of being accompanied. Companions and patients have similar levels of perceptions and expectations towards biosimilars but report some unique information needs. Future educational interventions should involve companions and address their concerns to help improve biosimilar acceptance.
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Affiliation(s)
- Chiara Gasteiger
- Department of Psychological Medicine, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand.
| | - Urte Scholz
- Department of Psychology-Applied Social and Health Psychology, University of Zurich, Zurich, Switzerland.,University Research Priority Program "Dynamics of Healthy Aging", University of Zurich, Zurich, Switzerland
| | - Keith J Petrie
- Department of Psychological Medicine, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Nicola Dalbeth
- Department of Rheumatology, Auckland District Health Board, Auckland, New Zealand.,Department of Medicine, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
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15
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Gasteiger C, den Broeder AA, Stewart S, Gasteiger N, Scholz U, Dalbeth N, Petrie KJ. The mode of delivery and content of communication strategies used in mandatory and non-mandatory biosimilar transitions: a systematic review with meta-analysis. Health Psychol Rev 2021; 17:148-168. [PMID: 34409923 DOI: 10.1080/17437199.2021.1970610] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Effective patient-provider communication is crucial to promote shared decision-making. However, it is unclear how to explain treatment changes to ensure patient acceptance, such as when transitioning from a bio-originator to a biosimilar. This review investigates communication strategies used to educate patients on transitioning to biosimilars and explores whether the willingness to transition and treatment persistence differs for the delivery (verbal or written) and the amount of information provided. MEDLINE, Embase, Scopus, and relevant conference databases were systematically searched. Communication strategies from 33 studies (88% observational cohort studies) published from 2012 to 2020 were synthesized and willingness to transition, persistence, and subjective adverse events explored. Patients only received information verbally in 11 studies. The remaining 22 studies also provided written information. Cost-saving was the main reason provided for the transition. Patients were most willing to transition when receiving written and verbal information (χ2 = 5.83, p = .02) or written information that only addressed a few (3-5) concerns (χ2 = 16.08, p < .001). There was no significant difference for persistence or subjective adverse events (p's > .05). Few randomized controlled trials have been conducted. Available data shows more willingness to transition when patients received written and verbal information. Initial documents should contain basic information and consultations or telephone calls used to address concerns.
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Affiliation(s)
- Chiara Gasteiger
- Department of Psychological Medicine, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | | | - Sarah Stewart
- Bone & Joint Research Group, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Norina Gasteiger
- School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom
| | - Urte Scholz
- Department of Psychology- Applied Social and Health Psychology, University of Zurich, Zurich, Switzerland.,University Research Priority Program 'Dynamics of Healthy Aging', University of Zurich, Zurich, Switzerland
| | - Nicola Dalbeth
- Department of Rheumatology, Auckland District Health Board, Auckland, New Zealand.,Department of Medicine, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Keith J Petrie
- Department of Psychological Medicine, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
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16
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Gasteiger C, Groom KM, Lobo M, Scholz U, Dalbeth N, Petrie KJ. Is Three a Crowd? The Influence of Companions on a Patient's Decision to Transition to a Biosimilar. Ann Behav Med 2021; 56:512-522. [PMID: 34453530 DOI: 10.1093/abm/kaab082] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Involving patients in treatment decisions is commonplace in healthcare, and patients are frequently accompanied by a companion (support person). Companions are often actively involved in medical consultations, yet their impact on decisions to change medications is unknown. PURPOSE This study examines the influence of companions on a patient's decision to transition from their bio-originator therapy to a biosimilar. METHODS A parallel, two-arm randomized controlled trial was conducted with 79 patients taking a bio-originator for rheumatic diseases who regularly attend clinic with a companion. Patients were randomized to receive an explanation about a hypothetical transition to a biosimilar alone or with their companion. Patients reported willingness to transition, risk perceptions, difficulty understanding, social support, and completed the Decisional Conflict Scale and Satisfaction with Decision Scale. RESULTS Companions did not influence decisions to transition to biosimilars or cognitive and affective risk perceptions. Accompanied patients reported more difficulty understanding the explanation (p = .006, Cohen's d = .64) but thought it was more important to receive information with companions (p = .023, Cohen's d = -.52). Companions did not impact decision satisfaction or decisional conflict. Receiving emotional, but not practical support, was associated with less decisional conflict in accompanied patients (p = .038, r 2 = 0.20). CONCLUSIONS The presence of companions does not seem to influence risk perceptions or decisions about transitioning to biosimilars. Companions, however, impact the patient's reporting of their ability to understand treatment explanations. Providers should check understanding in all patients but may need to provide additional time or educational resources to accompanied patients and companions. TRIAL REGISTRATION Australian New Zealand Clinical Trial Registry: ACTRN12619001435178.
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Affiliation(s)
- Chiara Gasteiger
- Department of Psychological Medicine, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Katie M Groom
- Liggins Institute, University of Auckland, Auckland, New Zealand.,National Women's Health, Auckland District Health Board, Auckland, New Zealand
| | - Maria Lobo
- Department of Rheumatology, Auckland District Health Board, Auckland, New Zealand
| | - Urte Scholz
- University Research Priority Program "Dynamics of Healthy Aging," University of Zurich, Zurich, Switzerland.,Department of Psychology - Applied Social and Health Psychology, University of Zurich, Zurich, Switzerland
| | - Nicola Dalbeth
- Department of Rheumatology, Auckland District Health Board, Auckland, New Zealand.,Department of Medicine, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Keith J Petrie
- Department of Psychological Medicine, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
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Ascef BO, Almeida MO, de Medeiros Ribeiro AC, Andrade DCO, de Oliveira Júnior HA, Pereira TV, de Soárez PC. Equivalence and switching between biosimilars and reference molecules in rheumatoid arthritis: protocol for a systematic review and meta-analysis. Syst Rev 2021; 10:205. [PMID: 34274019 PMCID: PMC8286602 DOI: 10.1186/s13643-021-01754-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 06/27/2021] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Biologic drugs such as adalimumab, etanercept, and infliximab represent major first-line and second-line treatments for rheumatoid arthritis (RA) patients. However, their high cost poses a massive burden on healthcare systems worldwide. The expiration of patents for these biologics has driven the production of biosimilar drugs, which are potentially less costly and remarkably similar, albeit not identical to the reference molecules. This paper aims to outline the protocol of a systematic review that will investigate the efficacy and safety profile of biosimilars compared to biologics (objective 1) and the impact of switching between biosimilar drugs and reference biologics on the management of RA patients (objective 2). METHODS We will investigate the effects of any biosimilars of adalimumab, etanercept, and infliximab on RA patients. We will include randomized controlled trials (RCTs) or quasi-RCTs to assess efficacy and safety outcomes and RCTs with two- or multiple-part designs to evaluate the consequences of switching from reference biologics to biosimilar drugs (and vice-versa). Electronic searches will be performed through MEDLINE (via PubMed), EMBASE, LILACS, and CENTRAL (from inception to April 2021). Two independent reviewers will screen studies, extract data, and evaluate the risk of bias. The latter will be carried out considering specific domains from equivalence trials and switching studies. Random-effects models will be fitted to obtain summary estimates using either relative risk or standardized mean difference as a metric. The primary outcome will be the rate of treatment success according to the American College of Rheumatology 20 (ACR20), and the co-primary outcome will be the Health Assessment Questionnaire-Disability Index (HAQ-DI). Conclusions will be based on equivalence hypothesis testing using predefined margins of equivalence elicited from a group of experienced rheumatologists and prior studies. The overall certainty of the evidence will be assessed based on the GRADE system. DISCUSSION The present investigation proposes a comprehensive, clinician-oriented approach to assess the equivalence and the impact of switching between biosimilars and biologics on the management of patients with RA. Our results will elucidate the efficacy, safety, immunogenicity of biosimilars, and the clinical consequences of substituting biologics with biosimilars in the management of RA. SYSTEMATIC REVIEW REGISTRATION PROSPERO CRD42019137152 and CRD42019137155.
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Affiliation(s)
- Bruna O. Ascef
- Programa de Pós-Graduação em Saúde Coletiva, Departamento de Medicina Preventiva, Faculdade de Medicina - FMUSP, Universidade de São Paulo, São Paulo, SP Brazil
| | - Matheus O. Almeida
- Programa de Pós-Graduação em Fisioterapia, Universidade Ibirapuera, São Paulo, SP Brazil
| | | | - Danieli C. O. Andrade
- Disciplina de Reumatologia do Hospital das Clínicas da Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP Brazil
| | - Haliton A. de Oliveira Júnior
- Programa de Pós-Graduação em Medicamentos e Assistência Farmacêutica, Departamento de Farmácia Social, Universidade Federal de Minas Gerais, Belo Horizonte, MG Brazil
| | - Tiago V. Pereira
- Applied Health Research Centre, Li Ka Shing Knowledge Institute, St Michael’s Hospital, Toronto, ON Canada
- Department of Health Sciences, College of Medicine, University of Leicester, Leicester, UK
| | - Patrícia C. de Soárez
- Programa de Pós-Graduação em Saúde Coletiva, Departamento de Medicina Preventiva, Faculdade de Medicina - FMUSP, Universidade de São Paulo, São Paulo, SP Brazil
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Informing Patients about Biosimilar Medicines: The Role of European Patient Associations. Pharmaceuticals (Basel) 2021; 14:ph14020117. [PMID: 33557030 PMCID: PMC7913743 DOI: 10.3390/ph14020117] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 01/28/2021] [Accepted: 02/01/2021] [Indexed: 12/14/2022] Open
Abstract
Biosimilar medicines support the sustainability of national healthcare systems, by reducing costs of biological therapies through increased competition. However, their adoption into clinical practice largely depends on the acceptance of healthcare providers and patients. Patients are different from health care professionals (HCPs), who are informing themselves professionally. For patients, the biosimilar debate only becomes actual when they are confronted with disease and drug choices. This paper provides a literature review on how patients are and should be informed about biosimilars, searching in scientific databases (i.e., Medline, Embase). Several large surveys have shown a lack of knowledge and trust in biosimilars among European patients in recent years. This review identified five main strategies to inform patients about biosimilars: (1) provide understandable information, (2) in a positive and transparent way, (3) tailored to the individual’s needs, (4) with one voice, and (5) supported by audiovisual material. Moreover, the importance of a multistakeholder approach was underlined by describing the role of each stakeholder. Patients are a large and diffuse target group to be reached by educational programs. Therefore, patient associations have become increasingly important in correctly informing patients about biosimilar medicines. This has led to widespread biosimilar information for patients among European patient associations. Therefore, a web-based screening of European Patients’ Forum (EPF) and International Alliance of Patients’ Organizations (IAPO) member organizations on publicly available information about biosimilars was performed. We found that the level of detail, correctness, and the tone of the provided information varied. In conclusion, it is paramount to set up a close collaboration between all stakeholders to communicate, develop, and disseminate factual information about biosimilars for patients.
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Ascef BDO, Lopes ACDF, de Soárez PC. Health technology assessment of biosimilars worldwide: a scoping review. Health Res Policy Syst 2020; 18:95. [PMID: 32843051 PMCID: PMC7448328 DOI: 10.1186/s12961-020-00611-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Accepted: 08/03/2020] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Health technology assessment (HTA) should provide an assessment of a technology's effects on health and of the related social, economic, organisational and ethical issues. HTA reports on biosimilars can specifically assess their immunogenicity, their extrapolation to one or more conditions, and the risks of interchangeability and substitution. We aimed to complete a scoping review within the context of HTA organisations to synthesise HTA reports on biosimilars and to map the extension, scope and methodological practices. MAIN BODY A scoping review methodology was applied. The sources for biosimilars HTA reports were database searches and grey literature from HTA organisation websites up to June 2019. HTA reports of biosimilars were classified as full HTA, mini-HTA or rapid reviews. Data were extracted and recorded on a calibrated predefined data form. We identified 70 HTA reports of biosimilars of 16 biologic products (65.71% in 2015-2018) produced by 13 HTA organisations from 10 countries; 2 full HTAs, 4 mini-HTAs and 64 rapid reviews met the inclusion criteria. Almost all the rapid reviews gave no information regarding any evidence synthesis method and approximately half of the rapid reviews did not appraise the risk of bias of primary studies or the overall quality of evidence. All full-HTAs and mini-HTAs addressed organisational, ethical, social and legal considerations, while these factors were assessed in less than half of the rapid reviews. The immunogenicity and extrapolation of one or more conditions were often considered. The majority of full-HTAs and mini-HTAs contained an assessment of switching and a discussion of an educational approach about biosimilars. No HTA report rejected the adoption/reimbursement of the biosimilar assessed. CONCLUSION HTA of biosimilars are emerging in the context of HTA organisations and those that exist often duplicate reports of the same biosimilar. Most HTA reports of biosimilars do not conduct a systematic literature review or consider economic issues. No report has rejected the adoption/reimbursement of biosimilars. There is a need to standardise the minimum criteria for the development of HTA on biosimilars to ensure a better understanding and better decision-making.
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Affiliation(s)
- Bruna de Oliveira Ascef
- Preventive Medicine Department, Faculty of Medicine, The University of São Paulo, Av. Dr. Arnaldo, 455, sala 2228, São Paulo, SP CEP: 01246-903 Brazil
| | - Ana Carolina de Freitas Lopes
- Preventive Medicine Department, Faculty of Medicine, The University of São Paulo, Av. Dr. Arnaldo, 455, sala 2228, São Paulo, SP CEP: 01246-903 Brazil
| | - Patrícia Coelho de Soárez
- Preventive Medicine Department, Faculty of Medicine, The University of São Paulo, Av. Dr. Arnaldo, 455, sala 2228, São Paulo, SP CEP: 01246-903 Brazil
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