With multiple adalimumab biosimilars poised to enter the market and more biosimilars in more disease states seeking interchangeability, the US market is entering a new phase of biosimilar use.
While there are currently only 2 biosimilars with interchangeability designation, having more interchangeable biosimilars will start becoming a more important pharmacy benefit as biosimilars reach the US market, explained Jeffrey Casberg, MS, RPh, vice president of pharmacy at IPD Analytics, LLC, during a session at Asembia’s Specialty Pharmacy Summit, held May 2-5 in Las Vegas.
Casberg’s organization is tracking products that either have interchangeable biosimilars or that will have them in the future. On the radar are:
There is even more potential interchangeability among the insulins. There are 3 products: short-acting insulin lispro (Humalog), short-acting insulin aspart (NovoLog), and long-acting insulin glargine (Lantus). There is already an interchangeable biosimilar for insulin glargine (Semglee).
The most excitement remains around the adalimumab biosimilars, but there is some uncertainty how they will change the market trends. Right now, all of the approved adalimumab biosimilars are for the original 50 mg/ml formulation, which only has 20% or less market share.
“Payers are going to have to develop plans to move people—85% of the market—from the new formulation back to the old formulation,” Casberg explained, and it’s “unclear how successful that conversion would have been.”
However, there was recently an agreement between AbbVie, the maker of Humira, and Alvotech to allow a new formulation adalimumab biosimilar to launch mid 2023.
“Instead of this big hurdle and messy conversion…now, we're going to have both the old formulation and new formulation of adalimumab,” he said. This is easier for pharmacies, which won’t have to deal with the conversion, and payers, which won’t have to send letters to patients and providers explaining the conversation. Ultimately, having biosimilars available for both formulations will “make this adoption much more robust.”
According to Casberg, 2021 has brought the US biosimilar market into a new phase. The initial phase was 2013 to 2020. During this phase, the drugs were on the medical benefit side, and they were mostly less competitive. In the new phase, there are bigger brand names, pharmacy benefit drugs, more competitive therapeutic classes, interchangeable biosimilars are entering the market, and some of these biosimilars will be self-administered, he explained. However, in this new phase, there will also be physicians in specialties who are less familiar with biosimilars.
“So, I think we're going to start to see an increase in trajectory of the use of biosimilars in the United States,” Casberg said.
Eye on Pharma: Sandoz Files Antitrust Suit; Yuflyma Interchangeability; Costco’s Ustekinumab Pick
April 22nd 2025Sandoz's antitrust suit against Amgen, the FDA’s interchangeability designation for Celltrion’s adalimumab biosimilar, and the inclusion of an ustekinumab biosimilar in Costco’s prescription program highlight growing momentum to expand biosimilar access and affordability for patients with chronic inflammatory diseases.
How AI Can Help Address Cost-Related Nonadherence to Biologic, Biosimilar Treatment
March 9th 2025Despite saving billions, biosimilars still account for only a small share of the biologics market—what's standing in the way of broader adoption and how can artificial intelligence (AI) help change that?
President Trump Signs Executive Order to Bring Down Drug Prices
April 16th 2025To help bring down sky-high drug prices, President Donald Trump signed an executive order pushing for faster biosimilar development, more transparency, and tougher rules on pharmacy benefit managers—aiming to save billions and make meds more affordable for everyone.
Will the FTC Be More PBM-Friendly Under a Second Trump Administration?
February 23rd 2025On this episode of Not So Different, we explore the Federal Trade Commission’s (FTC) second interim report on pharmacy benefit managers (PBMs) with Joe Wisniewski from Turquoise Health, discussing key issues like preferential reimbursement, drug pricing transparency, biosimilars, shifting regulations, and how a second Trump administration could reshape PBM practices.
Latest Biosimilar Deals Signal Growth Across Immunology, Oncology Markets
April 14th 2025During Q1 2025, pharmaceutical companies accelerated biosimilar expansion through strategic acquisitions and partnerships in hopes of boosting patient access to lower-cost treatments in immunology and oncology.
Experts Pressure Congress to Remove Roadblocks for Biosimilars
April 12th 2025Lawmakers and expert witnesses emphasized the potential of biosimilars to lower health care costs by overcoming barriers like pharmacy benefit manager practices, limited awareness, and regulatory delays to improve access and competition in chronic disease management during a recent congressional hearing.