SAR441566 is a medication being studied for its potential to help people with moderate to severe plaque psoriasis. Plaque psoriasis is a skin condition that causes red, scaly patches to appear on the skin. This medication is being tested to see if it can reduce the symptoms of psoriasis, such as the redness and scaling, and improve the overall condition of the skin. The study aims to find out if SAR441566 is more effective than a placebo, which is a substance with no active ingredients, in treating this condition. Participants in the trial are those who have not previously received targeted immunotherapy for their psoriasis. The goal is to determine if SAR441566 can provide relief and improve the quality of life for people living with this skin condition.

Psoriasis – Psoriasis is a chronic autoimmune skin condition characterized by the rapid growth of skin cells, leading to the formation of thick, red, scaly patches on the skin. These patches, often referred to as plaques, can appear anywhere on the body but are commonly found on the elbows, knees, scalp, and lower back. The disease progresses through cycles, with periods of flare-ups followed by remission. During flare-ups, the affected skin areas may become itchy, painful, and may crack or bleed. The severity of psoriasis can vary, with some individuals experiencing only minor patches, while others may have extensive coverage. Environmental factors, stress, and certain medications can trigger or exacerbate the condition.