Hi Mimi (). I can't speak specifically to the peptides, but I do want to share with you this article on glucagon-like peptide 1 receptor agonists in patients with inflammatory arthritis or psoriasis: https://pubmed.ncbi.nlm.nih.gov/36870080/. It looked at a number of studies and focused on the impact of weight reduction on disease activity and did find a positive effect. That said, I want to note that they conclude that these medications "role as an adjunct in patients with inflammatory arthritis and obesity or diabetes is understudied, warranting future research." Specifically, the part about them being an adjunct therapy points to the fact that they do not treat the underlying immune system issues of these autoimmune conditions. Your doctor may be able to provide additional information.
Also, I noticed that you mentioned psoriatic arthritis. Was this because it was mentioned in the interview you saw or are you diagnosed with PsA? I ask because we have a sister-site for PsA at https://psoriatic-arthritis.com/. There you can find the same level of information and support for that condition as you find here for RA. Best, Richard (RheumatoidArthritis.net Team)