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Mental Disorders clinical trials

The registry lists 1,740 studies for Mental Disorders across more than 10 countries. 348 are recruiting or about to start. 702 of them are mainly about Mental Disorders (how this is decided). Per ClinicalTrials.gov, last updated 2026-11-10. Counting its 176 narrower conditions too, such as Anxiety Disorders: 52,216 studies, 11,307 open.

ClinicalTrials.gov finds 51,019 studies for Mental Disorders. How that becomes 1,740 here

This page counts the studies the registry files under Mental Disorders, and those it files under no condition that list Mental Disordersthemselves. Each study its search finds is placed by how the registry filed it and by the conditions it lists. ClinicalTrials.gov counts as of Nov 8, 2026. How condition pages count

  1. 51,019Found by its condition searchIt reads the conditions a study lists and their synonyms, and also titles and keywords.
  2. −44,917Filed under a narrower condition, counted on its own pageAnxiety Disorders 7,042 · Alzheimer Disease 3,751 · Schizophrenia 3,152 · Cognitive Dysfunction 2,856 · Sleep Initiation and Maintenance Disorders 2,337 · Stress Disorders, Post-Traumatic 2,115 · 149 more
  3. −76List Mental Disorders as a condition, but the registry did not file them under itMost often written as “Serious Mental Illness” (15), “Mental Disorder in Adolescence” (8), and “Stigma of Mental Illness” (7). The registry filed 46 of them under no condition at all, and the others under other conditions only, most often Social Stigma (7) and Psychological Well-Being (7).
  4. −4,286Match it another way97 name it in the title, 17 in a keyword, and 4,172 by a synonym or other text the search reads.
  5. 1,740The count on this page

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Status

Completed
1,008
Recruiting
243
Status unknown
185
Not yet recruiting
90
Active, not recruiting
88
Terminated
66

Phase

Phase 2
153
Phase 3
112
Phase 1
59
Phase 4
50
Early Phase 1
7

Where

United States
603
France
148
Canada
111
Spain
87
Germany
81
United Kingdom
72

Who runs them

VA Office of Research and Development (35) · National Center for Research Resources (NCRR) (28) · Otsuka Pharmaceutical Development & Commercialization, Inc. (25) · Centre for Addiction and Mental Health (20) · Yale University (19) · Charite University, Berlin, Germany (18) · National Institute of Mental Health (NIMH) (18) · King's College London (16)

What is being tested here

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

DrugOpenPhase 3All
Dexmedetomidine306
ML-007C304
Ketamine2110
Semaglutide203
Melatonin213
Esketamine202
Risperidone147
Omega-3 fatty acid126
Oxytocin104
Quetiapine124

Drug classes tested here Antipsychotics 2 open · GLP-1 receptor agonists 2 open · Stimulants 1 open · Opioids 1 open · SSRIs 13

Coming up

14phase 3 studies under way
123studies finish main data collection within a year2 of them phase 3

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, phase 3 first

Who these studies take

Of the 243 Mental Disorders studies recruiting now, 104 (43%) set no upper age limit and 112 (46%) stop at 75 or younger. 61 (25%) take children under 18. 14 (6%) are for women only and 1 (<1%) for men only; 70 (29%) take healthy volunteers.

Recruiting studies that take each age, of 243
AgeWomenMen
1032 (13%)32 (13%)
18193 (79%)180 (74%)
30189 (78%)176 (72%)
40183 (75%)171 (70%)
50179 (74%)171 (70%)
65178 (73%)171 (70%)
75137 (56%)131 (54%)
85120 (49%)114 (47%)

Across all 1,740 studies, recruiting or not: 48% stop at 75 or younger and 43% at 65; 28% take children; 4% are for women only and 2% for men only; 28% take healthy volunteers. From each study’s registry entry; the criteria on its page decide.

How long Mental Disorders studies take

Of 56 phase 2 interventional studies under Mental Disorders, half reached primary completion within 24 months of starting, counting those still running.

Start to primary completionEvery sponsorIndustryNon-industry
Phase 112 mo1–43 · 27 studies——
Phase 224 mo17–35 · 56 studies22 mo12–25 · 28 studies—
Phase 334 mo19–59 · 28 studies——
Phase 431 mo16–84 · 17 studies——
Interventional, no phase29 mo13–45 · 680 studies—29 mo13–45 · 666 studies
Observational37 mo13–77 · 156 studies—37 mo12–77 · 149 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 13, 2026.

Started recruiting2

Results posted1

Newly registered13

Show 8 more

Studies

Recruiting first, then most recently updated. Showing 50 of 1,740. Browse all 1,740 → or search them.