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Parkinsonian Disorders clinical trials

The registry lists 218 studies for Parkinsonian Disorders across more than 10 countries. 63 are recruiting or about to start. 32 of them are mainly about Parkinsonian Disorders (how this is decided). Per ClinicalTrials.gov, last updated 2026-11-12. Counting its 2 narrower conditions too, such as Parkinson Disease: 4,798 studies, 1,156 open.

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Status

Completed
97
Recruiting
45
Status unknown
25
Terminated
14
Active, not recruiting
11
Enrolling by invitation
10

Phase

Phase 2
28
Phase 3
18
Phase 1
14
Phase 4
10
Early Phase 1
2

Where

United States
96
France
24
Italy
22
Spain
22
China
21
Germany
20

Who runs them

Institute for Neurodegenerative Disorders (10) · Adamas Pharmaceuticals, Inc. (6) · National Institute of Neurological Disorders and Stroke (NINDS) (6) · Ruijin Hospital (6) · Radboud University Medical Center (5) · AbbVie (4) · University College, London (4) · Fondazione Don Carlo Gnocchi Onlus (3)

What is being tested here

Drugs under test in Parkinsonian Disorders studies, those with the most open studies first. Medicines only given beside them are not counted. How drugs are counted

DrugOpenPhase 3All
Botulinum toxin type A102
3-Iodobenzylguanidine101
Fluorodopa F 18101
Ioflupane I-123101
ONO-2808111
Ambroxol111
Varenicline101
Tavapadon045
Iodine-123015
Mavoglurant003

Drug classes tested here Dopamine agonists 8

Coming up

3phase 3 studies under way
18studies finish main data collection within a year

Studies recruiting or running, from their records. “Main data collection” ends at the primary completion date, the sponsor’s own estimate, which often moves.

The 10 nearest

Who these studies take

Of the 45 Parkinsonian Disorders studies recruiting now, 18 (40%) set no upper age limit and 9 (20%) stop at 75 or younger. 4 (9%) take children under 18. 0 (0%) are for women only and 0 (0%) for men only; 12 (27%) take healthy volunteers.

Recruiting studies that take each age, of 45
AgeWomenMen
103 (7%)3 (7%)
1818 (40%)18 (40%)
3024 (53%)24 (53%)
4034 (76%)34 (76%)
5043 (96%)43 (96%)
6544 (98%)44 (98%)
7540 (89%)40 (89%)
8528 (62%)28 (62%)

Across all 218 studies, recruiting or not: 12% stop at 75 or younger and 5% at 65; 12% take children; <1% are for women only and 0% for men only; 26% take healthy volunteers. From each study’s registry entry; the criteria on its page decide.

How long Parkinsonian Disorders studies take

Of 54 interventional studies with no phase under Parkinsonian Disorders, half reached primary completion within 31 months of starting, counting those still running.

Start to primary completionEvery sponsorIndustryNon-industry
Interventional, no phase31 mo22–45 · 54 studies—33 mo19–45 · 53 studies
Observational74 mo34–… · 37 studies——

Each figure is the month by which half the studies had reached primary completion, with the range in which the middle half did. Studies still running count until their last registry update; studies that stopped early are left out. Phase 1 includes early phase 1; observational means prospective or not stated, as retrospective and cross-sectional studies date a window of data rather than a study. How these figures are worked out

What changed recently

From the registry's own updates since Oct 14, 2026.

Started recruiting1

Stopped1

Newly registered1

Studies

Recruiting first, then most recently updated. Showing 50 of 218. Browse all 218 → or search them.