Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Oct 20, 2026, 2:41 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–3 of 3 matching trials from the live ClinicalTrials.gov search.
Conditions
Parkinson Disease
Interventions
BIIB122, BIIB122-Matching Placebo
Drug
Lead sponsor
Biogen
Industry
Eligibility
30 Years to 80 Years
Enrollment
650 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
33
States / cities
Phoenix, Arizona • Sun City, Arizona • Los Angeles, California + 25 more
Conditions
Parkinson Disease
Interventions
BIIB122, BIIB122-Matching Placebo
Drug
Lead sponsor
Biogen
Industry
Eligibility
30 Years to 80 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
12
States / cities
San Francisco, California • Aurora, Colorado • Englewood, Colorado + 8 more
Conditions
Parkinson Disease
Interventions
BIIB122 225 mg, BIIB122-Matching Placebo
Drug · Other
Lead sponsor
Denali Therapeutics Inc.
Industry
Eligibility
30 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
7
States / cities
Los Angeles, California • San Francisco, California • Boca Raton, Florida + 4 more