research on compounded pharmacy semaglute (ozempic) and success of weight loss, survey patients

scholarly project on semaglutide since its out of stock, compounding pharmacy formulates the medication. But the real success weight loss is unknown.
we have patients who were on semaglutide therapy in our office using compounding pharmacy.
we want to survey patient and see if they lost weight.
Design a surgery and write a paper to be published in the journal.