Rheumatology

The nationwide mandatory switch from Humira (reference adalimumab) to biosimilar adalimumab in Denmark led to no increase in total health care costs over 9 months, with significant cost reductions for those who switched to GP2017 specifically, highlighting the economic feasibility of biosimilar adoption.

The top 5 rheumatology biosimilar articles of 2024 highlight significant FDA approvals, including high-concentration adalimumab and tocilizumab biosimilars, along with evidence supporting the safety and efficacy of biosimilar-to-biosimilar switching.

The FDA approved Celltrion's Steqeyma (ustekinumab-stba), making it the seventh biosimilar slated to compete against blockbuster Stelara (reference ustekinumab) in 2025.

A real-world study in France found patient satisfaction was stable after switching from either the reference product or a low-concentration adalimumab biosimilar to the adalimumab biosimilar CT-P17, a high-concentration, citrate-free formulation.

Alvotech and Advanz Pharma have submitted a European marketing application for their golimumab biosimilar to treat inflammatory diseases, while Celltrion secured Korean approval for denosumab biosimilars, and Intas Pharmaceuticals partnered with Xbrane Biopharma on a nivolumab biosimilar.

A French real-world study found that the adalimumab biosimilar SB5 was effective in treating rheumatic or gastrointestinal immune-mediated inflammatory diseases, showing no loss of disease control in switched patients and similar persistence rates between naive and switched groups.

The study highlights the safety, efficacy, and cost benefits of infliximab biosimilars in managing pediatric noninfectious uveitis, showing fewer disease flares and reduced costs compared with reference infliximab, as well as the influence of insurance mandates on treatment decisions.

Veterans with inflammatory bowel disease (IBD) prioritize shared decision-making, transparency, and individualized care in biosimilar switching, favoring delayed switching for severe cases and greater patient control.

The European Commission grants marketing authorization to 2 aflibercept biosimilars; Biosimilars Canada launches new campaign to provide sustainable solutions to employers; Celltrion shares positive data for 2 biosimilars.

For the first time, Skyrizi (risankizumab-rzaa) has replaced Humira (reference adalimumab) as AbbVie’s sales driver, largely due to companies encouraging “product hopping” to avoid competition, creating concerns for the sustainability of the burgeoning adalimumab biosimilar market.

Celltrion plans to commercialize 22 biosimilars by 2030, expanding its global presence with robust sales growth driven by core biosimilars and new launches like subcutaneous infliximab.

Henlius and Organon’s pertuzumab biosimilar met phase 3 goals; Meitheal expanded its US biosimilars; Celltrion’s subcutaneous infliximab (Zymfentra) showed monotherapy could be as effective as combination therapy for inflammatory bowel disease.

Panelists emphasized the need for transparency and policy reforms in pharmacy benefit management (PBM) to improve accessibility, affordability, and fair competition for adalimumab biosimilars.

A phase 3, 28-week comparative clinical trial in patients with moderate to severe plaque psoriasis confirmed similarity of the proposed ustekinumab biosimilar SB17 (Samsung Bioepis) to the reference product (Stelara) in efficacy, safety, pharmacokinetics, and immunogenicity.

Regeneron appeals legal decision after judge refuses to block an aflibercept biosimilar; Prime Therapeutics, a pharmacy benefit manager (PBM), becomes the latest to offer biosimilars referencing Humira (adalimumab) at a low cost; the FDA and European Medicines Agency accept a denosumab biosimilar candidate for review.

Blue Shield of California will offer an adalimumab biosimilar at a price that is 75% less than the reference product Humira for the monthly dose.

A UK cohort study used drug concentration samples from rheumatoid arthritis patients starting the adalimumab biosimilar Amgevita and the etanercept biosimilar Benepali to simulate drug levels under standard and alternate dosing schedules, suggesting that personalized dosing could reduce costs while potentially increasing efficacy.

Adalimumab biosimilars have seen a significant increase in market share, from 2% in early 2024 to 22%, as payers and pharmacy benefit managers begin to prioritize these biosimilars over the reference product, Humira.

A study found that switching from rituximab to biosimilar CT-P10 is safe and effective for patients with systemic lupus erythematosus (SLE).

The FDA approved a new strength of a trastuzumab biosimilar; UnitedHealth will remove reference adalimumab from some preferred drug lists in favor of biosimilars and Evernorth will offer an interchangeable ustekinumab biosimilar at no cost to patients; Samsung Bioepis received a positive regulatory opinion for its aflibercept biosimilar.

A summary of research written by Vibeke Strand, MD, clinical professor in division of immunology/rheumatology at Stanford University School of Medicine, gave an overview of patient-reported outcomes (PROs) in the VOLTAIRE-RA trial.

The European Commission (EC) approved Celltrion's ustekinumab biosimilar for chronic inflammatory diseases, Celltrion expanded access to Zymfentra (subcutaneous infliximab-dyyb) through partnerships with Cigna and Express Scripts, and the Association for Accessible Medicines held a policy briefing addressing barriers to biosimilar adoption.

Sophia Humphreys, PharmD, MHA, BCBBS, director of system formulary management at Sutter Health, discusses the challenges of expanding biosimilars into new therapeutic areas and highlights the role of education, competitive pricing, and integrated delivery networks in improving adoption and market growth.

A real-world study of the biosimilar infliximab-dyyb (CT-P13; Inflectra) in rheumatoid arthritis (RA) reported the majority of patients who initiated CT-P13 switched from the reference product (Remicade) or another biologic or targeted synthetic disease-modifying antirheumatic drug.

Switching children with juvenile idiopathic arthritis (JIA) from anti–tumor necrosis factor originators to biosimilars showed similar disease activity and drug persistence, with good tolerability, supporting the safety and effectiveness of non-medical switching.

Patients with rheumatoid arthritis who switched from the etanercept originator to a biosimilar exhibited similar disease activity and drug persistence compared with those who remained on the originator, indicating that nonmedical switching does not negatively impact treatment outcomes.

The 2023 European Alliance of Associations for Rheumatology (EULAR) recommendations for psoriatic arthritis (PsA) provide an evidence-based treatment strategy, prioritizing conventional and biological disease-modifying antirheumatic drugs, including biosimilars, tailored to disease manifestations, with an emphasis on safety, cost-effectiveness, and patient-centered care.

Market remonopolization by a biosimilar drug in Poland led to significant price increases for etanercept, resulting in over €3.42 million in excess health care costs, according to a recent study.

CMS announced negotiated prices for 10 drugs under the Inflation Reduction Act (IRA), sparking mixed reactions, with concerns that including drugs facing imminent biosimilar competition could hinder market access to lower-cost alternatives.

An analysis of subcutaneous biosimilar and originator tumor necrosis factor (TNF) inhibitors for rheumatic diseases found no significant differences in survival or discontinuation rates due to inefficacy or adverse events, with biosimilars showing lower overall discontinuation rates and higher retention rates.