Cosentyx is a medication used to treat several autoimmune diseases, including psoriasis and psoriatic arthritis. According to the sources provided, there have been no new side effects discovered for Cosentyx.

The first source [1] provides information on the patent for Cosentyx and does not mention any new side effects. The second source [2] is the website for the Cosentyx Connect Personal Support Program, which provides resources and information for patients using Cosentyx. While the website does list several potential side effects of the medication, including infections and allergic reactions, there is no mention of any new side effects being discovered.

The third source [3] is an article from Medical News Today that discusses the effectiveness of Cosentyx in treating psoriasis. The article does not mention any new side effects, but it does note that the medication may increase the risk of certain infections, such as tuberculosis and fungal infections.

In conclusion, based on the sources provided, there is no evidence of any new side effects being discovered for Cosentyx. However, it is important for patients to be aware of the potential side effects listed on the medication's website and to discuss any concerns with their healthcare provider.

Sources:
[1] https://www.drugpatentwatch.com/p/biologics/tradename/COSENTYX
[2] https://www.cosentyx.com/cosentyx-connect-personal-support-program
[3] https://www.medicalnewstoday.com/articles/326632