Background: This study evaluated physicians' and patients' beliefs about biosimilars in Hong Kong, India, Pakistan, Singapore, Taiwan, and Thailand.
Research design and methods: An online survey administered to physicians (dermatologists, n = 119; gastroenterologists, n = 148; rheumatologists, n = 161) between 22 October 2021 and 7 January 2022, and patients (n = 90) with rheumatic or inflammatory bowel disease between 25 October 2021 and 12 April 2022.
Results: Most (68%) physicians reported having a strong knowledge about biosimilars, yet 49% indicated that biosimilars are readily available to them. Physicians cited potential cost savings (81%) as the main benefit of biosimilars, and cost/coverage support (36%), patient support (25%), and increasing biosimilar awareness/education (24%) as main strategies for improving usage. Few (21%) patients reported having a strong knowledge about biosimilars. Patients cited offering alternatives in case of drug shortages (77%) as the main benefit of biosimilars, and cost/coverage support (53%), increasing awareness of product profile (22%), and providing biosimilars with a good efficacy profile/effective product (19%) as main strategies for improving usage.
Conclusion: Programs focused on cost/coverage support, patient support, and biosimilar awareness could improve acceptance of biosimilars for chronic immune-mediated inflammatory diseases in Asian countries, thereby increasing patient access to essential biologic therapies.
Keywords: Asia; beliefs; inflammatory bowel disease; psoriasis; rheumatic disease.
Biologic medicines come from living organisms such as viruses, bacteria, and animal or plant cells. Biosimilars are approved biologic medicines that are highly similar in structure to original biologic medicines. This study was done to understand what people with diseases that cause long-lasting inflammation of the joints, intestines, or skin (inflammatory diseases for short) and their doctors think about biosimilars. Researchers focused on people and doctors living in six Asian countries (Hong Kong, India, Pakistan, Singapore, Taiwan, and Thailand) with economies and health systems that are advanced or becoming more advanced. Researchers used an online survey to ask people with inflammatory diseases (or people responders) (90 in total) and their doctors (428 in total) what they think about biosimilars. Most doctors (68%) and some people responders (21%) said they had a good understanding of biosimilars. Doctors thought the main benefit of using biosimilars was the possibility of achieving cost savings. People responders thought the main benefit was the possibility of having additional treatment options in case of shortages of the original biologic medicine. Doctors said they sometimes cannot prescribe biosimilars because the cost may still be too high for some patients or because they worry about the quality of biosimilars and how well they work. Programs that increase awareness of biosimilars and that provide financial and other support for biosimilars could improve biosimilar use as treatment for inflammatory diseases in Asian countries, giving more patients access to important biologic medicines in this region.