A Study in People With Overweight or Obesity to Test How Well Different Doses of BI 1820237 Are Tolerated When Given Alone or in Combination With Either Semaglutide or BI 456906

Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of Different Titration Schedules of Subcutaneous Doses of BI 1820237 Alone or Together With Either Semaglutide or BI 456906 in Otherwise Healthy Male and Female Individuals With Obesity/Overweight (Multiple Dose, Single-blind, Randomised, Placebo-controlled, Parallel Group Design)

This study is open to adults between 18 and 55 years of age who are living with overweight or obesity. People with a body mass index (BMI) from 27 to 40 kg/m2 can join the study.

The main purpose of this study is to find out how a medicine called BI 1820237 is tolerated by people with overweight or obesity when taken alone or in combination with a medicine called semaglutide or with a medicine called BI 456906.

Participants are divided into different groups. All participants in the study either take different doses of BI 1820237 or placebo. Some of the groups take either semaglutide or BI 456906 in addition.

Each participant has an equal chance of being in each group. All participants receive the study medicines as injections under the skin once a week for almost 5 months. Placebo injections look like BI 1820237 injections, but do not contain any medicine. Semaglutide is medicine that is already used for overweight or obesity. BI 456906 is another medicine that is being developed for the treatment of overweight and obesity. Participants are in the study for about 7 months. During this time, they visit the study site regularly. For some of the visits, the participants remain at the study site for 1 or 2 nights. At the study visits, the doctors check the health of the participants and note any health problems that could have been caused by BI 1820237, semaglutide, or BI 456906.

Inclusion Criteria:

• Male or female subjects with obesity/overweight (otherwise healthy) according to the assessment of the Investigator, as based on a complete medical history including a physical examination, vital signs (blood pressure (BP), pulse rate (PR)), 12-lead electrocardiogram (ECG), and clinical laboratory tests
• Age of 18 to 55 years (inclusive)
• Body mass index (BMI) of 27.0 to 40.0 kg/m2 (inclusive). Overweight/obesity should be due to excess adipose tissue, as judged by the Investigator
• Body weight greater than or equal to 75 kg
• Signed and dated written informed consent in accordance with ICH-GCP and local legislation prior to admission to the trial
• Further inclusion criteria apply.

Exclusion Criteria:

• Any finding in the medical examination (including BP, PR or ECG) deviating from normal and assessed as clinically relevant by the Investigator
• Repeated measurement of systolic blood pressure outside the range of 90 to 140 mmHg, diastolic blood pressure outside the range of 50 to 90 mmHg, or pulse rate outside the range of 50 to 90 bpm
• Any laboratory value outside the reference range that the Investigator considers to be of clinical relevance
• Any evidence of a concomitant disease assessed as clinically relevant by the Investigator
• Gastrointestinal, hepatic, renal, respiratory, cardiovascular, metabolic, immunological or hormonal disorders
• Cholecystectomy, bariatric surgery or other surgery of the gastrointestinal tract that could interfere with the pharmacokinetics of the trial medication (except appendectomy or simple hernia repair)
• Diseases of the central nervous system (including but not limited to any kind of seizures or stroke), and other relevant neurological or psychiatric disorders
• History of relevant orthostatic hypotension, fainting spells, or blackouts Further exclusion criteria apply