A Study to Learn About the Safety of BIIB122 Tablets and Whether They Can Slow the Worsening of Early-Stage Parkinson's Disease in Adults Between the Ages of 30 and 80
ACTIVE_NOT_RECRUITING
Status
Conditions
Interventions
- DRUG: BIIB122
- DRUG: BIIB122-Matching Placebo
Sponsor
Biogen
Collaborators