Unless it was an exclusion criteria then no. They would certainly have to tell the investigators what drugs they are taking, but other than that they could be on a GLP-1 agonist.
Normally other drugs wash out in the randomisation, but when a totally new treatment enters the population then things can go wrong. Many Phase 3 trials have been upended by the GLP-1 agonists in the last few years.
Add to My Watchlist
What is My Watchlist?