The American College of Rheumatology recommends biosimilar use in new white paper

February 7, 2018, American College of Rheumatology

The American College of Rheumatology (ACR) has published a new white paper, "The Science Behind Biosimilars - Entering a New Era of Biologic Therapy," providing a comprehensive overview of the scientific, clinical, economic and prescribing issues pertaining to biosimilar use, including efficacy, competition and drug pricing. The paper encourages providers to incorporate these drugs into treatment plans of patients with rheumatic diseases where appropriate.

The FDA has approved nine biosimilar medications, six of which are for treatment of , since the Biologics Price Competition and Innovation Act (BPCI Act) of 2009 was passed in an effort to reduce costs and increase patient's access to biologics. As biosimilar usage increases, an extensive discussion about issues regarding immunogenicity, switching, and patient access has emerged. New recommendations for clinical practice have been made, based on continued evaluation from regulatory agencies and successful administration of biosimilars in Europe. Over the past few years, the ACR has voiced its support for FDA approval measures to ensure the safety of biosimilars as they become available in the U.S. market, including a proposal to require manufacturers to use robust switching studies and support for distinct naming conventions and billing codes to make post-marketing surveillance easier.

"The ACR has closely followed the development, evaluation, and approval processes for biosimilar agents, in addition to observing their successful use in other countries," said Dr. S. Louis Bridges, Jr., MD, PhD, chair of the ACR's Committee on Research and lead author of this paper. "We are now confident that providers can recommend biosimilars as a safe, effective, and affordable option to , where appropriate."

Authors note the only anticipated advantage of a biosimilar over its reference product is lower cost, given that the two drugs should be therapeutically equivalent, and that biosimilars could play a crucial role in fostering competition that keeps high prices at bay. However, the degree to which availability of biosimilars in the U.S. will drive down the cost of biologic therapy remains to be seen. Obstacles for patient accessibility include drug copayments for biosimilars that are nearly as expensive as those for the reference drug. Authors also anticipate pharmacy benefit managers (PBMs) will play a key role, explaining that the lower price of biosimilars could be a negative for their current business model.

"There are a variety of market-based and legislative factors that contribute to the accessibility of biosimilars," said Dr. Angus Worthing, MD, chair of the ACR's Government Affairs Committee and co-author of this paper. "While we have yet to see broad cost-saving benefits in the U.S. marketplace, efforts from health care advocates, legislative measures, and the introduction of additional biosimilar options could help relieve the financial burden of patients using these therapies."

Authors of the paper are hopeful that continued use of biosimilars will improve patient access to biologic drugs, ensuring high quality health care at a lower cost. To maintain exceptional standards of , rheumatologists are urged to maintain a working knowledge of regulatory guidelines and policies, currently approved medications, and evolving research on . The full white paper is available on the ACR website.

Explore further: How should biosimilars be used to treat rheumatic diseases?

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