Amycretin Sees 14.5% Weight Loss in Phase 2 Diabetes Trial
Novo Nordisk is reporting favorable Phase 2 data for its investigational dual-action obesity and diabetes drug amycretin, showing significant reductions in both weight and blood sugar among adults with Type 2 diabetes inadequately controlled on standard therapies. The study marks the first time amycretin has been tested in a Type 2 diabetes population, according to the company. The once-weekly injectable and once-daily oral versions of the drug — a single molecule designed to activate both GLP-1 and amylin receptors — delivered dose-dependent improvements in HbA1c and body weight over 36 weeks, it says.
In the 448-person trial, participants had baseline HbA1c levels near 8% and were taking metformin, with about 40% also on an SGLT2 inhibitor, the company says. The highest doses of injectable amycretin reduced HbA1c levels by up to 1.8 percentage points, with 89.1% of participants reaching the American Diabetes Association’s target of less than 7%. Among oral users, reductions reached 1.5 percentage points, with 77.6% achieving target levels. All amycretin arms met the study’s primary endpoint of statistically significant HbA1c improvement versus placebo, it adds.
Weight loss was similarly robust, according to the company. Participants receiving the highest subcutaneous dose lost up to 14.5% of baseline body weight, compared with 2.6% on placebo. The oral formulation delivered weight loss of up to 10.1%, versus 2.5% on placebo, it notes, adding that both formulations were generally well tolerated. Side effects were mostly gastrointestinal and mild to moderate, aligning with other GLP-1–based and amylin-based therapies.
Novo Nordisk says it will begin Phase 3 trials across multiple indications in 2026.