Episode description

Semaglutide, branded as Ozempic or Wegovy, is an analogue of glucagon-like peptide 1 which has glucose-dependent effects on insulin secretion. In this episode we discuss how semaglutide performs as an antihyperglycaemic agent compared to previous GLP-1 analogues and the soon-to-be launched tirzepatide. This dual agonist also binds receptors to glucose-dependent insulinotropic polypeptide, GIP.

GLP-1 and GIP are incretin hormones, secreted after food intake and involved in regulating gastric motility and appetite. The analogue therapies have resulted in weight loss of 10 to 20 percent in trials on patients with obesity or other weight-related comorbidities. For various reasons, however, they remain unsubsidised by the Pharmaceutical Benefits Scheme. This hasn’t stopped social media influencers driving up off-label demand from the wider public, creating a problem for regulators and the diabetic patients most in need.

Guests
Professor Chris Rayner MBBS PhD FRACP (Gwendolyn Michell Professor, Adelaide Medical School; Consultant Gastroenterologist, Royal Adelaide Hospital)
Professor Gary Wittert MBBch, MD, FRACP (Mortlock Professor, Adelaide Medical School; Senior Consultant Endocrinologist, Royal Adelaide Hospital)

Production
Produced by Mic Cavazzini DPhil. Music courtesy of Free Music Archive includes ‘Mister S’ by Tortue Super Sonic. Music licenced from Epidemic Sound includes ‘Multicolor’ and ‘Flower Fountain’ by Chill Cole, ‘Blacklight’ by John B Lund, and ‘Habitual’ by Ava Low. Image by Ketut Subiyanto courtesy of Pexels. 

Editorial feedback kindly provided by RACP physicians Stephen Bacchi, Aidan Tan, David Arroyo, Joseph Lee, Jia-Wen Chong, Li-Zsa Tan, Fionnuala Fagan, Stella Sarlos and Marion Leighton.

Please visit the Pomegranate Health web page for a transcript and supporting references. Login to MyCPD to record listening and reading as a prefilled learning activity. Subscribe to new episode email alerts or search for ‘Pomegranate Health’ in Apple Podcasts, Spotify, Castbox or any podcasting app.