According to the sources provided, there is no clear evidence to suggest that Cosentyx (secukinumab) directly causes weight changes.

The first source, Drug Patent Watch, provides information about the drug Cosentyx but does not mention anything about weight changes as a side effect [1].

The second source, Drugs.com, states that weight gain or weight loss is not listed as a common side effect of Cosentyx [2]. However, it is important to note that individual experiences may vary, and some people may experience weight changes while taking the medication.

The third source, Medical News Today, also does not mention weight changes as a side effect of Cosentyx [3]. However, it does mention that some people may experience side effects such as infections, injection site reactions, and gastrointestinal symptoms.

It is always recommended to consult with a healthcare professional or pharmacist for personalized information and advice regarding medication side effects. They can provide a more accurate assessment based on an individual's specific medical history and current condition.

In conclusion, based on the provided sources, there is no conclusive evidence to suggest that Cosentyx directly causes weight changes. However, individual experiences may vary, and it is important to consult with a healthcare professional for personalized information.

Sources:
[1] Drug Patent Watch. (n.d.). Cosentyx - Tradename Details. Retrieved from https://www.drugpatentwatch.com/p/biologics/tradename/COSENTYX
[2] Drugs.com. (n.d.). Does Cosentyx cause weight gain or weight loss? Retrieved from https://www.drugs.com/medical-answers/cosentyx-weight-gain-loss-3561255/
[3] Medical News Today. (2019, September 17). Cosentyx (secukinumab): Uses, dosage, and side effects. Retrieved from https://www.medicalnewstoday.com/articles/326632