National Institute of Mental Health (NIMH)

Open enrollment with an early-phase pipeline tilt

According to ClinicalTrials.gov-derived indexes, National Institute of Mental Health (NIMH) sits in the top decile of US sponsors by registered trial count (#103 of 15,742 sponsors by registered trial count).

343 total trials 42 currently recruiting 256 completed early-phase tilt top decile by trial count

National Institute of Mental Health (NIMH): 343 sponsored US clinical trials, 42 recruiting.

National Institute of Mental Health (NIMH) sponsors 343 registered US clinical trials on ClinicalTrials.gov, 42 of them currently recruiting, and 256 completed. 29 of these trials are in Phase 3-4 (later-stage) and 106 in Phase 1-2 (earlier-stage). The most-studied condition in this pipeline is Healthy, with 21 trials.

Top-decile sponsor footprint

National Institute of Mental Health (NIMH) ranks in the top decile of sponsors by registered trial count (#103 of 15,742 sponsors by registered trial count). Volume at this scale usually reflects a long institutional pipeline, read phase tilt and therapeutic areas below before treating it as current-year activity.

Trial completion reliability score

D 56/100

256 of 296 decided trials (Completed vs. Terminated on ClinicalTrials.gov) reached their planned completion (86.5%), vs. national p10 68.4% / p90 100% among 1,234 sponsors with at least 10 decided trials. Still-open trials (Recruiting, Active-not-recruiting, Not-yet-recruiting) are excluded since they have not reached an outcome yet.

Open and recent trials

343 total, page 5 of 7

COMPLETED Phase 2

PET Imaging of Dopamine in Healthy Study Participants

NCT00062946

COMPLETED

Generalized Anxiety Disorder and Social Anxiety Disorder: Their Impact on the Processing of Information and Learning

NCT00062517

COMPLETED

The Effects of Estrogen Withdrawal on Mood Symptoms in Women

NCT00060736

COMPLETED

Brain Regulation of Emotions in People With Depression and Anhedonia

NCT00059579

TERMINATED Phase 2

Clinical Trial of Estrogen for Postpartum Depression

NCT00059228

COMPLETED

Brain Imaging of Serotonin Transporters in the Brain

NCT00059046

COMPLETED Phase 1

Effects of Modafinil on Brain Function in Patients With Schizophrenia

NCT00057707

TERMINATED

Screening Evaluation for Women With Postpartum Depression

NCT00056901

COMPLETED NA

Expectation of Unpleasant Events in Anxiety Disorders

NCT00055224

TERMINATED Phase 2

Cholinergic Modulation of Condition and Emotion in Mood Disorders: Functional Neuroimaging Studies

NCT00055575

COMPLETED

Effect of Hydrocortisone on the Brain

NCT00055003

COMPLETED Phase 2

Imaging of Brain Receptors in Healthy Volunteers and in Patients With Schizophrenia

NCT00061789

TERMINATED Phase 2

Riluzole to Treat Depression in Bipolar Disorder

NCT00054704

COMPLETED

Brain Imaging in Depression

NCT00050700

COMPLETED Phase 4

Evaluation of Stress Disorders

NCT00050804

COMPLETED NA

Brain Imaging Changes in Fear and Anxiety

NCT00047853

TERMINATED

Screening for Childhood-Onset Psychotic Disorders

NCT00049738

COMPLETED

MRI Study of Brain Activity and Risk for Depression in Adolescents

NCT00047944

COMPLETED Phase 4

The Effect of Short-Term Statins and NSAIDs on Levels of Beta-Amyloid, a Protein Associated With Alzheimer's Disease

NCT00046358

COMPLETED

Brain Receptor Function in Post-Traumatic Stress Disorder

NCT00046553

COMPLETED

Characterization of Childhood-Onset Obsessive-Compulsive Disorder

NCT00044239

COMPLETED

Psychopharmacology of Fear-Potentiated Startle in Humans

NCT00044096

COMPLETED Phase 2

Clinical Trial of Mifepristone for Bipolar Depression

NCT00043654

TERMINATED Phase 2

Clinical Trial of Tolcapone for Cognition in Schizophrenia

NCT00044083

COMPLETED Phase 2

Examination of a Soy-Based Supplement for Major Depression

NCT00042380

COMPLETED

Effects of Yohimbine and Naltrexone on Sexual Function

NCT00042536

COMPLETED Phase 3

Clinical Trial of Memantine for Major Depression

NCT00040261

COMPLETED Phase 4

Ethnic Variations in Antidepressant Response

NCT00047671

COMPLETED

Brain Imaging in Alzheimer's Disease

NCT00039702

COMPLETED

Effects of Hydrocortisone in Patients With Post-Traumatic Stress Disorder

NCT00039715

COMPLETED Phase 3

Clozapine vs. Placebo in Treatment-Refractory Bipolar Disorder in Children and Adolescents

NCT00036582

COMPLETED

Serotonin Function During Depression

NCT00033787

COMPLETED

Effect of D-cycloserine on Extinction of Fear Conditioning

NCT00352586

COMPLETED Phase 2

Clinical Trial of Felbamate for Treatment-Resistant Bipolar Depression

NCT00034229

COMPLETED

PET Scanning in Parkinson s Disease

NCT00024622

COMPLETED

Effects of Stress Hormones on Emotion and Cognition

NCT00032838

COMPLETED Phase 4

Evaluation of Clonazepam and Paroxetine for Panic Disorder With Depression

NCT00031317

COMPLETED Phase 4

Raloxifene and Rimostil for Perimenopause-Related Depression

NCT00030147

COMPLETED

Reward-Related Processes and Brain Function

NCT00029588

COMPLETED

Cortical Excitability in Obsessive-Compulsive and Related Disorders

NCT00029068

COMPLETED Phase 2

Clozapine for Treatment-Resistant Mania

NCT00029458

COMPLETED

Brain Receptors in Sympathetic Nervous System Regulation

NCT00029627

COMPLETED

The Treatment of Children and Adolescents With Treatment-Resistant Depression

NCT00029640

COMPLETED

Evaluation of Age- and Alzheimer's Disease-Related Memory Disorder

NCT00029120

COMPLETED

Ventilatory Physiology in Children at Risk for Anxiety

NCT00101777

COMPLETED Phase 2

Examination of Tamoxifen in Acute Mania in Patients With Bipolar I Disorder

NCT00026585

COMPLETED

Behavior in Children With Attention Deficit Hyperactivity Disorder and in Healthy Volunteers

NCT00026546

COMPLETED Phase 2

Riluzole to Treat Major Depression

NCT00026052

COMPLETED

Brain Chemical Receptor Effects in Patients With Panic Disorder and Post-Traumatic Stress Disorder

NCT00025974

COMPLETED

Brain Function in Mentally Ill Adolescents

NCT00025857

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Phase Distribution

PhaseTrial count
Phase 1 61
Phase 2 45
Phase 3 8
Phase 4 21

What is open in the National Institute of Mental Health (NIMH) pipeline

42 recruiting of 343 indexed (12% open); 256 completed (75%).

Phase mix: 29 late (III/IV) vs 106 early (I/II) (early-phase heavy).

Top condition: Healthy (21 trials), 9 others listed.

How open-pipeline share is computed

Recruiting share is recruiting_count divided by trial_count for this sponsor in the public registry export. Status can change between pulls; treat the figure as a research-attention snapshot, not product availability.

National Institute of Mental Health (NIMH): open-pipeline peers nationwide

Peers matched on 343 registered trials and 12% open enrollment, not the therapeutic-area sidebar.

National Institute of Mental Health (NIMH) sits at or above the median trial volume and below the median recruiting share among these 9 nationwide peers -- the two do not always move together. Source: ClinicalTrials.gov (2026-08-08 snapshot). 2×2 strategic matrix plotting 9 entities by Total trials (X) and Recruiting share (Y), with a crosshair dividing the plot into four quadrants. Higher volume & more openFocused & more openHigher volume, mostly closedSmaller & mostly closed 0100200300400 5%10%15%20%25% Total trials Recruiting share National Institute of Mental Health (NIMH)Children's Oncology GroupMontefiore Medical CenterOhio State University Comprehensive Cancer CenterCedars-Sinai Medical CenterAugusta UniversityUniversity of IowaDaiichi SankyoFriends Research Institute
National Institute of Mental Health (NIMH) sits at or above the median trial volume and below the median recruiting share among these 9 nationwide peers -- the two do not always move together. Source: ClinicalTrials.gov (2026-08-08 snapshot).

National Institute of Mental Health (NIMH) sits at or above the median trial volume and below the median recruiting share among these 9 nationwide peers -- the two do not always move together.

Sponsors near 343 trials (± recruiting share)

Sponsors near 12% open enrollment (± trial volume)

What to do with this National Institute of Mental Health (NIMH) page

343 registered trials is a research-attention snapshot, not an endorsement of National Institute of Mental Health (NIMH) or any single study.

  • 42 of National Institute of Mental Health (NIMH)'s trials are currently recruiting, check each one's own eligibility criteria before contacting a site. Browse recruiting trials
  • Healthy is the condition National Institute of Mental Health (NIMH) studies most, compare against other sponsors active in the same condition before evaluating a specific study. See Healthy trials
  • Bring the specific trial ID (NCT number) to your own doctor before enrolling, this page is a directory, not medical guidance. Read the trial-finding guide

Trial and recruiting counts reflect ClinicalTrials.gov registry status as of the data vintage above; individual trial eligibility and enrollment status can change.

Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. National Institute of Mental Health (NIMH) pipeline card: 343 registered trials from official public datasets. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.