Wegovy's efficacy and safety for this new indication were studied in a multi-national, multi-center, placebo-controlled double-blind trial that randomly assigned over 17,600 participants to receive either Wegovy or placebo. Participants in both groups also received standard-of-care medical treatment (e.g., management of blood pressure and cholesterol) and healthy lifestyle counseling (including diet and physical activity). Wegovy significantly reduced the risk of major adverse cardiovascular events (cardiovascular death, heart attack and stroke), which occurred in 6.5% of participants who received Wegovy compared to 8% of participants who received placebo. The most common side effects of Wegovy include nausea, diarrhea, vomiting, constipation, abdominal (stomach) pain, headache, fatigue, dyspepsia (indigestion), dizziness, abdominal distension, eructation (belching), hypoglycemia (low blood sugar) in patients with diabetes, flatulence (gas buildup) and gastroesophageal reflux disease (heartburn). Wegovy received Priority Review designation for this indication. Wegovy is also approved to reduce excess weight and maintain weight reduction long term in certain adults with obesity or overweight and certain children with obesity, for use in addition to a reduced calorie diet and increased physical activity. NIH: Overweight & Obesity Statistics
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