ClinicalTrials.gg
Sign In

Tourette Syndrome clinical trials

The registry lists 240 studies for Tourette Syndrome across more than 10 countries. 40 are recruiting or about to start. 200 of them are mainly about Tourette Syndrome (how this is decided). Per ClinicalTrials.gov, last updated 2026-11-12.

Get an email when these change. Save the Tourette Syndrome studies recruiting or about to start — once a week, free: studies that open, close, add sites or post results.

Watch these studies
See an example email

Example · made-up studies

Breast cancer · Recruiting: 2 came in, 3 changed

What changed in your saved searches, Oct 31 – Nov 6:

A study of drug A after surgery for early breast cancer

Came in · now Recruiting

Drug B with hormone therapy in advanced breast cancer

Changed

· Sites: 4 added, including Seoul and Busan

· Enrollment: 300 → 450 participants

Exercise during chemotherapy

Now Active, not recruiting

One email a week for all your saved searches. Stop any time.

Status

Completed
143
Recruiting
33
Status unknown
27
Terminated
17
Withdrawn
8
Not yet recruiting
6

Phase

Phase 2
46
Phase 3
21
Phase 1
16
Phase 4
9
Early Phase 1
3

Where

United States
139
Germany
21
Canada
20
France
19
Italy
12
China
11

Who runs them

National Institute of Neurological Disorders and Stroke (NINDS) (12) · Yale University (9) · Johns Hopkins University (9) · University of Florida (8) · Neurocrine Biosciences (8) · University of Utah (6) · Emalex Biosciences Inc. (6) · Vanderbilt University Medical Center (6)

What is being tested here

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

DrugOpenPhase 3All
Sertraline101
Ornidazole101
Medical Marijuana101
Aripiprazole0710
Valbenazine008
Ecopipam026
Lactiplantibacillus plantarum PS128002
Deutetrabenazine012
Guanfacine012
ABX-1431002

Drug classes tested here Antipsychotics 19

Coming up

1phase 3 study under way
13studies 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 33 Tourette Syndrome studies recruiting now, 9 (27%) set no upper age limit and 22 (67%) stop at 75 or younger. 20 (61%) take children under 18. 0 (0%) are for women only and 0 (0%) for men only; 9 (27%) take healthy volunteers.

Recruiting studies that take each age, of 33
AgeWomenMen
1013 (39%)13 (39%)
1823 (70%)23 (70%)
3018 (55%)18 (55%)
4018 (55%)18 (55%)
5018 (55%)18 (55%)
6515 (45%)15 (45%)
7511 (33%)11 (33%)
8511 (33%)11 (33%)

Across all 240 studies, recruiting or not: 77% stop at 75 or younger and 75% at 65; 65% take children; 0% are for women only and 1% for men only; 18% take healthy volunteers. From each study’s registry entry; the criteria on its page decide.

How long Tourette Syndrome studies take

Of 19 phase 2 interventional studies under Tourette Syndrome, half reached primary completion within 25 months of starting, counting those still running.

Start to primary completionEvery sponsorIndustryNon-industry
Phase 225 mo15–42 · 19 studies——
Interventional, no phase33 mo22–50 · 65 studies—33 mo22–50 · 65 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.

Newly registered1

Studies

Recruiting first, then most recently updated. Showing 50 of 240. Browse all 240 → or search them.