A Research Study Investigating NNC0247-0829 for Weight Management in People With Overweight or Obesity

Investigation of Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of Single and Multiple Subcutaneous Injections of NNC0247-0829 in Adults With Overweight or Obesity

This study looks at NNC0247-0829 (a potential new medicine) for weight management in people with overweight or obesity. The study looks at how NNC0247-0829 works in the body. Participants will either get NNC0247-0829 or placebo (a 'dummy' medicine) - which treatment is decided by chance. NNC0247-0829 is an experimental medicine which has not been approved by the US FDA. Participants will get either 1 injection or a total of 4 injections (one week apart) by a study nurse at the clinic depending on what group they are in. The study will last for about 18 months, but participation will last from 11 to 23 weeks. This will depend on the group participants are in. Participants will attend 8 to 14 visits at the clinic with the study staff. Some participants will have one 16-day, 15-night visit and one 2-day, 1-night visit. Others will have two 2-day, 1-night visits. At all visits except one, participants will have blood tests and other checks. They will be asked about their health, medical history and habits including mental health questionnaires.

Inclusion Criteria:

• Female not of childbearing potential (CBP) or male, aged 18-60 years (both inclusive) at the time of signing informed consent.
• Body mass index (BMI) between 27.0 and 34.9 kg/m^2 (both inclusive) in the SD cohorts and between 27.0 and 39.9 kg/m^2 (both inclusive) in the MD cohorts at screening. Overweight or obesity should be due to excess adipose tissue, as judged by the investigator.

Exclusion Criteria:

• Male subject who is not surgically sterilised (vasectomised) and is sexually active with female partner of childbearing potential in the absence of highly effective contraception.
• Any disorder, which in the investigator's opinion might jeopardise subject's safety, evaluation of results, or compliance with the protocol.
• Use of prescription or non-prescription products, including herbal products and non-routine vitamins, within 14 days prior to screening. Mild painkillers are permitted until 24h prior to screening.