GLP1 Fasting Study

09/02/2026

Should you stop your weight loss medication before surgery? 🔬

This is one of the most common questions we hear from our patients — and it can feel like a real dilemma. There is still a lot of uncertainty about if medications should be stopped and if so, how long before surgery. And finally are there certain ways of fasting that may help reduce the risks and allow patients to remain on their GLP-1 medication for as long as possible up until their surgery.

The great news is that our colleagues at the University of Melbourne are now actively researching this very question. Their study aims to help inform better decision-making around the best preparation for surgery for patients using weight loss medications.
They're currently looking for participants to take part in this important research.

If you're interested in contributing to a study that could help shape guidelines for patients just like you, please reach out to Jasmin at the University of Melbourne:
📧 elkin.j@unimelb.edu.au 📞 +61 475 716 542

GLP1 Fasting Study

The more we learn, the better we can support our patients through every step of their journey. 💙

06/02/2026

We are currently seeking volunteers to participant in a clinical study to understand how different fasting instructions affect the amount of leftover food or liquid in the stomach.

This study has received St Vincent’s Hospital Melbourne ethics approval (reference number: 322/24).

A Randomised Controlled Trial on Fasting and Gastric Contents in GLP-1 RA Patients Glucagon-like peptide-1 receptor agonist (GLP-1 RA) medications such as Ozempic, Wegovy, Mounjaro, and Trulicity have significantly improved the treatment of type 2 diabetes, obesity, and heart disease. However, these...