Cosentyx is a biologic drug that is used to treat psoriasis, a chronic skin condition that causes red, scaly patches on the skin. Cosentyx is an interleukin-17A (IL-17A) inhibitor, which means it works by blocking the action of IL-17A, a protein that is involved in the inflammatory response that causes psoriasis [3].

According to Drug Patent Watch [1], Cosentyx was approved by the FDA in January 2015 for the treatment of moderate to severe plaque psoriasis in adults who are candidates for systemic therapy or phototherapy. It is also approved for the treatment of other autoimmune diseases such as psoriatic arthritis and ankylosing spondylitis. Cosentyx is manufactured by Novartis Pharmaceuticals and is available as a subcutaneous injection.

The official Cosentyx website [2] claims that clinical studies have shown that Cosentyx is effective in reducing the symptoms of psoriasis, such as redness, itching, and scaling. In one study, 80% of patients who received Cosentyx achieved clear or almost clear skin after 12 weeks of treatment. In another study, 70% of patients who received Cosentyx achieved clear or almost clear skin after 16 weeks of treatment. The website also notes that Cosentyx has been shown to be effective in reducing joint pain and swelling in patients with psoriatic arthritis.

Medical News Today [3] reports that Cosentyx is generally well-tolerated by patients, with common side effects including injection site reactions, upper respiratory infections, and diarrhea. Serious side effects are rare but may include infections, allergic reactions, and inflammatory bowel disease.

In conclusion, Cosentyx is an effective treatment for psoriasis, with clinical studies showing that it can reduce the symptoms of the condition and improve patients' quality of life. It is generally well-tolerated by patients, although serious side effects are possible. Cosentyx is available by prescription and should only be used under the supervision of a healthcare provider [2][3].

Sources:
[1] https://www.drugpatentwatch.com/p/biologics/tradename/COSENTYX
[2] https://www.cosentyx.com/plaque-psoriasis/faq
[3] https://www.medicalnewstoday.com/articles/drugs-cosentyx-for-psoriasis