This study is open to adults who are at least 18 years old and have
* presumed or confirmed NASH together with overweight or obesity and
* a body mass index (BMI) of 30 kg/m² or more, or
* a BMI of 27 kg/m² and at least one weight-related health problem.
People with a history of other chronic liver diseases cannot take part in this study.
The purpose of this study is to find out whether a medicine called survodutide helps people living with obesity or overweight and a confirmed or presumed liver disease called nonalcoholic steatohepatitis (NASH) to have less liver fat and to lose weight. Participants are put into 2 groups randomly, which means by chance. 1 group gets different doses of survodutide and 1 group gets placebo. Placebo looks like survodutide but does not contain any medicine. Every participant has a 2 in 3 chance of getting survodutide. Participants and doctors do not know who is in which group. Participants inject survodutide or placebo under their skin once a week for about 1 year. In addition to the study medicine, all participants receive counselling to make changes to their diet and to exercise regularly.
Participants are in the study for about 1 year and 3 months. During this time, it is planned that participants visit the study site up to 13 times and receive 3 phone calls by the site staff. The doctors check participants' health and take note of any unwanted effects. The participants' body weight is regularly measured. At 3 of the visits, the participants' liver is measured using different imaging methods. The results are compared between the groups to see whether the treatment works.