SYNCHRONIZE®-START- A Study to Test Whether Survodutide Helps People Living With Overweight or Obesity Who do Not Have Diabetes to Lose Weight

This study is open to adults with overweight or obesity. People can join the study if they have a body mass index (BMI) of 30 kg/m² or more, or a BMI of 27 kg/m² or more with at least one weight- related health problem. Participants must not have diabetes, and they must have tried to lose weight by dieting at least once in the past without success. The purpose of this study is to find out whether a medicine called survodutide helps people with overweight or obesity lose weight. This study has 2 groups. The groups differ based on their starting dose and whether they have used similar weight-loss medicines before. Participants are put into one of the 2 groups, but everyone in the study receives the study medicine, survodutide. Participants take the medicine as an injection under the skin once a week. The dose of the medicine is slowly increased over time and then kept at a steady level. If a participant has side effects, such as stomach problems, the study doctor can adjust their dose. Participants are in the study for about 1 year and 2 months. During this time, they visit the study site about 12 times. The study staff will also contact the participants by phone or video call for extra check-ins. The participants fill in questionnaires about their physical abilities, social activities, and how their weight affects their daily and emotional life. During the study, doctors regularly measure body weight to see whether the treatment works. They also check waist size, blood pressure, and take blood and urine samples. The doctors also regularly check participants' health and take note of any unwanted effects.

Inclusion criteria: 1. Male or female, age ≥18 years at the time of signing informed consent, and at least the legal age of consent in countries where it is \>18 years 2. History of at least one self-reported unsuccessful dietary effort to lose body weight 3. Signed and dated written informed consent in accordance with International Council for Harmonisation-Good Clinical Practice (ICH-GCP) and local legislation prior to admission to the trial. Persons must be capable of giving informed consent independently 4. Women of childbearing potential (WOCBP) must be ready and able to use highly effective methods of birth control as provided in the protocol Further inclusion criteria apply. Exclusion criteria: 1. Body weight change (self-reported) \>2.5% during run-in period before screening 2. Have obesity induced by other endocrinologic disorders (i.e. Cushing Syndrome) or diagnosed monogenetic or syndromic forms of obesity (i.e. melanocortin 4 receptor deficiency, leptin deficiency, or Prader Willi Syndrome) 3. Hemoglobin A1c (HbA1c) ≥6.5% (≥48 mmol/mol) as measured by the central laboratory at screening 4. History of Type 1 Diabetes Mellitus (T1DM) or Type 2 Diabetes Mellitus (T2DM) or treatment with glucose-lowering agent (for the purpose of treating diabetes) started within 3 months before the screening visit up to and including the baseline visit Further exclusion criteria apply.