FDA Approves New Formulation of Hyrimoz Adalimumab Biosimilar

The US Food and Drug Administration has approved a citrate-free, 100 mg/mL formulation of the biosimilar adalimumab-adaz (Hyrimoz), according to a statement from manufacturer Sandoz.

Hyrimoz, a tumor necrosis factor (TNF) blocker that is biosimilar to its reference product Humira, was approved by the FDA in 2018 at a concentration of 50 mg/mL for rheumatoid arthritis, juvenile idiopathic arthritis, psoriatic arthritis, ankylosing spondylitis, Crohn's disease, ulcerative colitis, and plaque psoriasis. The high-concentration formula is indicated for these same conditions.

Sandoz said that it intends to launch the citrate-free formulation in the United States on July 1. It will be one of up to nine other adalimumab biosimilars that are expected to launch in July. On January 31, Amjevita (adalimumab-atto) became the first adalimumab biosimilar to launch in the United States.

The current label for Hyrimoz contains a black box warning emphasizing certain risks, notably the increased risk for serious infections, such as tuberculosis or sepsis, and an increased risk of malignancy, particularly lymphomas.

Adverse effects associated with Hyrimoz with an incidence greater than 10% include upper respiratory infections and sinusitis, injection site reactions, headache, and rash.

The approval for the high-concentration formulation was based on data from a phase 1 pharmacokinetics bridging study that compared Hyrimoz 50 mg/mL and citrate-free Hyrimoz 100 mg/mL.

"This study met all of the primary objectives, demonstrating comparable pharmacokinetics and showing similar safety and immunogenicity of the Hyrimoz 50 mg/mL and Hyrimoz [100 mg/mL]," according to Sandoz, a division of Novartis.

The approval for Hyrimoz 50 mg/mL in 2018 was based on preclinical and clinical research comparing Hyrimoz and Humira. In a phase 3 trial published in the British Journal of Dermatology, which included adults with clinically stable but active moderate-to-severe chronic plaque psoriasis, Hyrimoz and Humira showed a similar percentage of patients met the primary endpoint of a 75% reduction or more in Psoriasis Area and Severity Index (PASI 75) score at 16 weeks, compared with baseline (66.8% and 65%, respectively).

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Cite this: FDA Approves New Formulation of Hyrimoz Adalimumab Biosimilar - Medscape - Mar 27, 2023.

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