New DMF formulation LAS41008 effective in treating psoriasis

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This study assess the efficacy and safety of a new formulation of DMF (LAS41008) compared with placebo and Fumaderm in adults with psoriasis.

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Background:
Fumaric acid esters (FAEs) are recommended in international guidelines for induction and long-term treatment of adults with moderate-to-severe chronic plaque psoriasis. The fixed combination Fumaderm® is approved in Germany, with dimethyl fumarate (DMF) being the main active ingredient.

Objectives:
To assess the efficacy and safety of a new formulation of DMF (LAS41008), compared with placebo and Fumaderm®, in adults with moderate-to-severe chronic plaque psoriasis.

Methods:
In this phase III, double-blind, placebo-controlled, noninferiority trial (BRIDGE, NCT01726933, EudraCT 2012-000055-13), patients were randomized to receive LAS41008, Fumaderm® or placebo (2 : 2 : 1) for 16 weeks, uptitrating to a maximum daily DMF dose of 720 mg, depending upon individual response. The coprimary end points were the percentage of patients achieving ≥ 75% improvement in Psoriasis Area and Severity Index (PASI 75) and the percentage achieving a score of ‘clear’ or ‘almost clear’ in the Physician's Global Assessment (PGA) at week 16.

Results:
In total, 671 patients were randomized and included in the full analysis set (n = 267, LAS41008; n = 273, Fumaderm®; n = 131, placebo). At week 16, 37·5% of patients treated with LAS41008 achieved PASI 75, compared with 15·3% receiving placebo (superiority for LAS41008 vs. placebo: P < 0·001) and 40·3% receiving Fumaderm® (noninferiority for LAS41008 vs. Fumaderm®: P < 0·001). Overall, 33% of patients treated with LAS41008 were ‘clear’ or ‘almost clear’ in the PGA at week 16, compared with 13·0% receiving placebo (P < 0·0001; LAS41008 superiority vs. placebo) and 37·4% receiving Fumaderm®. Most treatment-related adverse events were classed as ‘mild’ in severity.

Conclusions:
LAS41008 (DMF) is effective in the treatment of adults with moderate-to-severe chronic plaque psoriasis.

Source: onlinelibrary.wiley.com

*Funding: Almirall