GCG and obesity due to melanocortin 4 receptor deficiency: Although all unimolecular triple agonists in phase 2 trials for obesity are GLP1/GIP/GCG triple agonists, there is an ongoing phase 2 clinical trial of bioglutide, an oral insulin-like-growth factor-1 (IGF-1)/GLP-1/GIP/GCG quadruple agonist (NCT06564753) for individuals with obesity, which is also being trialled in combination with tirzepatide (NCT06643728).