Randomized study in healthy men and women. Assess the similarity of RO7239361 when injected into the arm, thigh, or the stomach. Collect data on safety of RO7239361.

Inclusion Criteria:

• Healthy participant as determined by no significant deviations in normal medical and surgical history and assessments
• Body Mass Index 18 kg/m2 to 32 kg/m2
• females must be of non-childbearing potential

Exclusion Criteria:

• tattoos or other skin findings on any of the potential injection sites
• history of chronic muscle pain within 30 days prior to study treatment
• prior history of IgG1 therapy

Other protocol defined inclusion and exclusion criteria apply