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First-in-human Randomized Study of Bimekizumab, a Humanized Monoclonal Antibody and Selective Dual Inhibitor of IL-17A and IL-17F, in Mild Psoriasis

First-in-human Randomized Study of Bimekizumab, a Humanized Monoclonal Antibody and Selective Dual Inhibitor of IL-17A and IL-17F, in Mild Psoriasis

Sophie Glatt, Eric Helmer, Birgit Haier, Foteini Strimenopoulou, Graham Price, Pavan Vajjah, Olivier A Harari, John Lambert, Stevan Shaw

Br J Clin Pharmacol. 2017 May;83(5):991-1001.

PMID: 27859546

Abstract:

Aims:
To assess safety, pharmacokinetics (PK) and clinical efficacy of bimekizumab (formerly UCB4940), a novel humanized monoclonal antibody and dual inhibitor of interleukin (IL)-17A and IL-17F, in subjects with mild plaque psoriasis.
Methods:
Randomized, double-blind, first-in-human study of bimekizumab in 39 subjects who received single-dose intravenous bimekizumab (8-640 mg) or placebo (NCT02529956).
Results:
Bimekizumab demonstrated dose-proportional linear PK and was tolerated across the dose range assessed. No subject discontinued due to treatment-emergent adverse events and no severe adverse events were reported. Bimekizumab demonstrated fast onset of clinically-meaningful effects on skin of patients with mild psoriasis as early as Week 2. Maximal improvements (100% or near 100% reductions from baseline) in all measures of disease activity were observed between Weeks 8-12 in subjects receiving 160-640 mg bimekizumab. The duration of effect at doses ≥160 mg was evident up to Weeks 12-20 after a single intravenous dose, dependent on endpoint.
Conclusions:
This is the first study to demonstrate the safety, tolerability and clinical efficacy of a dual IL-17A and IL-17F inhibitor, in subjects with mild psoriasis. Bimekizumab showed fast onset of clinically-meaningful efficacy by Week 2, with a maximal or near-maximal magnitude of response that was maintained up to study Weeks 12-20. These findings support the continued clinical development of bimekizumab for diseases mediated by both IL-17A and IL-17F, including psoriasis.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
IAR42413364	IL-17F human			Price

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