Biosimilars

While the FDA approved a large number of specialty drugs in 2023, payers shouldn’t let their attention wander in 2024. Multiple potential blockbusters are slated for decisions by the agency this year, as are several biosimilars and generic versions of specialty medications. Gene therapies will continue to garner headlines — and payer dollars. All of these trends and more point to an active year ahead within the specialty pharmacy space. AIS Health, a division of MMIT, spoke with some industry experts about what’s on board.

AIS Health: What are some specialty pharmacy issues to keep an eye on in 2024, and why?

In 2023, the FDA continued to rebound from a drop in approvals, marking the highest number in years. The agency’s Center for Drug Evaluation and Research (CDER) approved 55 novel drugs last year, and its Center for Biologics Evaluation and Research (CBER) approved 17 agents. That’s up from 37 CDER-approved therapies in 2022 and 51 in 2011. In 2022, CBER OK’d 13 agents, up from 10 in 2021. Specialty agents, such as cell and gene therapies, continued to make up a large portion of those new approvals, while the FDA approved several biosimilars, including a handful that were the first versions of their reference drugs. AIS Health, a division of MMIT, spoke with industry experts about what they view as the most notable FDA approvals of 2023.

Biosimilar uptake is higher for Medicare Advantage beneficiaries than their traditional Medicare (TM) counterparts, with MA members up to 2.3 times more likely to be prescribed a biosimilar, according to new research published in JAMA Health Forum. The FDA has approved 45 biosimilars so far, with more approvals expected this year.

Researchers from CMS, the FDA and policy research firm Acumen LLC studied claims and encounter data to calculate market share for 20 biosimilars across seven product categories. Biosimilar uptake was higher for MA members in every category but bevacizumab, the generic name for Genentech’s targeted cancer therapy Avastin. Avastin currently has four biosimilars available, with a fifth approved last month.

Although 2023 was a banner year for biosimilars hitting the U.S. market, uptake of these near-copies of biologic drugs remains low. Manufacturers of biologics also commonly file lawsuits or take other measures to extend their patents and have successfully delayed the introduction of FDA-approved biosimilars. Pharmaceutical industry experts tell AIS Health, a division of MMIT, that the slow adoption of biosimilars has an impact on payers that would prefer patients receive lower-cost biosimilars rather than expensive biologics.

In fact, a recent study offers evidence that private insurers are increasingly embracing biosimilars. Uptake of biosimilar medications was higher in Medicare Advantage plans than in traditional, fee-for-service Medicare from May 2015 through September 2022, according to a recent study published in JAMA Health Forum. However, biosimilars had less than a 50% market share in six of the seven product classes the authors examined, suggesting providers and patients often still opt for biologics.

CVS Health Corp.’s PBM, CVS Caremark, said recently that it will remove AbbVie’s immunosuppressive drug Humira (adalimumab) from its major national commercial template formularies. The move comes on the heels of a year in which 14 near-identical copies of the world’s best-selling drug entered the U.S. market after years of delays, leading major PBMs to generally put selections of several biosimilars on the same coverage tiers as their reference product.

Yet while Wall Street analysts heralded CVS’s decision as an indication that it’s become a trailblazer in the biosimilar space, one prominent PBM critic remains skeptical of the company’s motivations — especially since CVS is working with Humira’s manufacturer on a new cobranded version of the drug.

Biosimilar uptake is higher for Medicare Advantage beneficiaries than their traditional Medicare (TM) counterparts, with MA members up to 2.3 times more likely to be prescribed a biosimilar, according to new research published in JAMA Health Forum. The FDA has approved 45 biosimilars so far, with more approvals expected this year.

Researchers from CMS, the FDA and policy research firm Acumen LLC studied claims and encounter data to calculate market share for 20 biosimilars across seven product categories. Biosimilar uptake was higher for MA members in every category but bevacizumab, the generic name for Genentech’s targeted cancer therapy Avastin. Avastin currently has four biosimilars available, with a fifth approved last month.

Dec. 8: The FDA expanded the patient population of ADMA Biologics, Inc.’s Bivigam (immune globulin intravenous, human) to include the treatment of people at least 2 years old with primary humoral immunodeficiency. The agency initially approved the therapy on Dec. 21, 2012. The initial intravenous infusion rate is 0.5 mg/kg/minute for the first 10 minutes for a dose of 300-800 mg/kg every three to four weeks. The maintenance infusion rate may be increased every 20 minutes by 0.8 mg/kg/minute up to 6 mg/kg/minute. Drugs.com lists the price of a 50 mL intravenous solution as more than $756.

Dec. 13: The FDA approved US WorldMeds’ Iwilfin (eflornithine) to reduce the risk of relapse in adult and pediatric patients with high-risk neuroblastoma (HRNB) who have demonstrated at least a partial response to prior multiagent, multimodality therapy, including anti-disialoganglioside (anti-GD2) immunotherapy. Between 700 and 800 cases of neuroblastoma are diagnosed annually in the U.S., with 90% of those before age 5. About half of those cases in children are HRNB. The agency used the Real-Time Oncology Review pilot program and the Assessment Aid. It also granted the application priority review and breakthrough drug and orphan drug designations. The recommended dosing of the tablet is based on body surface area.

This past year, the FDA continued to rebound from a drop in approvals, marking the highest number in years. The agency’s Center for Drug Evaluation and Research (CDER) approved 55 novel drugs last year, and its Center for Biologics Evaluation and Research (CBER) approved 17 agents. That’s up from 37 CDER-approved therapies in 2022 and 51 in 2011. In 2022, CBER OK’d 13 agents, up from 10 in 2021. Specialty agents, such as cell and gene therapies, continued to make up a large portion of those new approvals, while the FDA approved several biosimilars, including a handful that were the first versions of their reference drugs. AIS Health, a division of MMIT, spoke with industry experts about what they view as the most notable FDA approvals of 2023.

CVS Health Corp.’s PBM, CVS Caremark, said recently that it will remove AbbVie’s immunosuppressive drug Humira (adalimumab) from its major national commercial template formularies. The move comes on the heels of a year in which 14 near-identical copies of the world’s best-selling drug entered the U.S. market after years of delays, leading major PBMs to generally put selections of several biosimilars on the same coverage tiers as their reference product.

Yet while Wall Street analysts heralded CVS’s decision as an indication that it’s become a trailblazer in the biosimilar space, one prominent PBM critic remains skeptical of the company’s motivations — especially since CVS is working with Humira’s manufacturer on a new cobranded version of the drug.

While the U.S. finally had biosimilar competition for AbbVie Inc.’s Humira (adalimumab) in 2023, it may take longer than anticipated for the agents to truly have an impact. That’s one of the trends moving into 2024 that Adam J. Fein, Ph.D., CEO of Drug Channels Institute, discussed during a recent webinar. While the impact of the glucagon-like peptide 1s (GLP1s) and patient-paid prescriptions will persist, the uptake of copay offset tools is subsiding, he said during the Dec. 15 webinar, titled Drug Channels Outlook 2024. In this first of a two-part series, AIS Health highlights the first half of the trends projected by the longtime industry expert.