1. LLY's retatrutide shows strong weight loss and knee pain reduction in trials. 2. Patients on the highest dose lost 23.7% of body weight on average. 3. Retatrutide could significantly compete in the obesity drug market. 4. 18% of patients stopped treatment due to side effects, mainly high BMI. 5. Competition from Novo Nordisk's new drug poses risks for LLY's market share.