Skip to content
Pharma Observatory a Scientist.com platform

Condition (MeSH)

Depressive Disorder, Treatment-Resistant

ClinicalTrials.gov lists 443 trials for Depressive Disorder, Treatment-Resistant or a narrower condition beneath it. Janssen Research & Development, LLC has the most among industry and government lead sponsors, with 16.

MeSH D061218 Mental Disorders F03
Email me this page as a PDF

Search trials, drugs, companies and investigators, and follow each one to the others. Individual plan, $249/seat/mo. Card required.

Phase 1 Phase 1 33 Phase 1/2 Phase 1/2 6 Phase 2 Phase 2 78 Phase 2/3 Phase 2/3 9 Phase 3 Phase 3 37 Phase 4 Phase 4 34 Not applicable Not applicable 195 Observational Observational 49 Phase 1 Phase 1 33 Phase 1/2 Phase 1/2 6 Phase 2 Phase 2 78 Phase 2/3 Phase 2/3 9 Phase 3 Phase 3 37 Phase 4 Phase 4 34 Not applicable Not applicable 195 Observational Observational 49

Trials per phase (log scale)

1 more section with rows

443 of the 443 trials are tagged with Depressive Disorder, Treatment-Resistant itself; the rest are tagged with a narrower condition beneath it.

Get the Depressive Disorder, Treatment-Resistant report as a PDF

The PDF carries up to 50 rows of each section, where the page shows the first few, with the sources listed. Enter a work email and confirm it from the message we send, and the report follows by email.

When did Depressive Disorder, Treatment-Resistant trials start? (26)

Shown in this order: most recent first, 1990 onwards. 2026 is partial: trials registered with a 2026 start date so far, not a full year.

Trials over time, by phase

  • Phase 1
  • Phase 1/2
  • Phase 2
  • Phase 2/3
  • Phase 3
  • Phase 4
  • Not applicable
  • Observational

Top of scale: 55

2001: 2 trials (Phase 4 2) 2002: 1 trials (Phase 1/2 1) 2003: 1 trials (Phase 4 1) 2004: 2 trials (Phase 4 1, Phase 3 1) 2005: 5 trials (Phase 4 2, Phase 3 2, Phase 1 1) 2006: 3 trials (Observational 1, Not applicable 1, Phase 1 1) 2007: 2 trials (Not applicable 2) 2008: 7 trials (Not applicable 1, Phase 4 3, Phase 3 1, Phase 2 2) 2009: 5 trials (Not applicable 1, Phase 4 1, Phase 3 1, Phase 2 2) 2010: 3 trials (Observational 1, Phase 2 2) 2011: 5 trials (Observational 1, Not applicable 2, Phase 3 1, Phase 1 1) 2012: 10 trials (Observational 1, Not applicable 4, Phase 3 1, Phase 2 2, Phase 1 2) 2013: 17 trials (Not applicable 12, Phase 4 1, Phase 2/3 2, Phase 2 2) 2014: 8 trials (Not applicable 3, Phase 4 2, Phase 2 3) 2015: 14 trials (Observational 1, Not applicable 4, Phase 3 6, Phase 2 2, Phase 1 1) 2016: 16 trials (Observational 2, Not applicable 6, Phase 4 2, Phase 3 2, Phase 2 3, Phase 1 1) 2017: 18 trials (Observational 3, Not applicable 7, Phase 4 2, Phase 2/3 1, Phase 2 2, Phase 1 3) 2018: 23 trials (Observational 2, Not applicable 12, Phase 4 1, Phase 3 3, Phase 2 3, Phase 1 2) 2019: 29 trials (Observational 3, Not applicable 8, Phase 4 1, Phase 3 3, Phase 2/3 3, Phase 2 4, Phase 1/2 3, Phase 1 4) 2020: 24 trials (Observational 6, Not applicable 9, Phase 4 3, Phase 3 1, Phase 2 3, Phase 1 2) 2021: 55 trials (Observational 7, Not applicable 22, Phase 4 5, Phase 3 3, Phase 2/3 1, Phase 2 12, Phase 1 5) 2022: 28 trials (Observational 3, Not applicable 17, Phase 4 2, Phase 2 6) 2023: 36 trials (Observational 5, Not applicable 21, Phase 3 2, Phase 2 6, Phase 1 2) 2024: 43 trials (Observational 6, Not applicable 22, Phase 4 1, Phase 3 3, Phase 2 7, Phase 1 4) 2025: 37 trials (Observational 4, Not applicable 18, Phase 4 2, Phase 3 1, Phase 2 8, Phase 1 4)

Trials registered with a start date in each year, 1990 onward, stacked by phase (complete years only; the current partial year is in the table's notes). The table below lists the same counts, most recent years first.

Trials started per year
Year Trials started
2026 (partial year) 47
2025 37
2024 43
2023 36
2022 28
2021 55
2020 24
2019 29
2018 23
2017 18

Forecast of the full-year count, planned starts included, not rows of this table: about 56 trials starting in 2026 and about 44 in 2027, the average of the 24 months through September, counted as registered and carried forward, with about 0.7 times the starts already registered for the rest of 2026 added. The rows of this table count trials registered so far with a start date in the year, planned starts included; the forecast looks ahead to the count for the whole year, so it is not the same measure. In backtests on conditions of this size, forecasts made part-way through the year were typically off by about 15 percent and ran about 1 percent high against the count later registered; forecasts made before the year began were off by about 26 percent and ran about 20 percent low against the count later registered. The part-way figures are from forecasts that used a multiple fitted only on earlier years. These figures rest on a few years of history (target years from 2018 to 2025, varying by figure), place each condition as it is mapped today rather than as it was then, and score against a count for the newest year that was still being revised. Only condition series were scored.

Prediction, not a registry value: median of 36 months from start to primary completion across 86 trials still running at the 2026-10-09 snapshot; registered median of 27 months across 212 trials with a primary completion typed Actual. Source: ClinicalTrials.gov / AACT (CTTI), public domain.

What phase are Depressive Disorder, Treatment-Resistant trials in? (9)

Shown in this order: phase order.

Show the trials by phase as a table
Trials by phase
Phase Trials
Phase 1 33
Phase 1/2 6
Phase 2 78
Phase 2/3 9
Phase 3 37
Phase 4 34
Not applicable 195
Observational 49
Expanded access 2

How many Depressive Disorder, Treatment-Resistant trials are recruiting? (11)

Shown in this order: the order a trial moves through, from not yet recruiting to unknown.

Trials by recruitment status
Status Trials
Not yet recruiting 28
Recruiting 92
Enrolling by invitation 3
Active, not recruiting 28
Available 1

Status as registered on ClinicalTrials.gov. Each trial is counted once.

Which lead sponsors run the most Depressive Disorder, Treatment-Resistant trials? (5)

Shown in this order: most trials first. Lead sponsors the registry classes as industry, NIH, US federal, other government or network. A hospital or university the registry files as government can appear here. Sponsors it classes as academic or other are shown on the full page, because that class cannot separate an institution from a named investigator.

Lead sponsors
Sponsor Trials
Janssen Research & Development, LLC 16
Taipei Veterans General Hospital, Taiwan 6
Axsome Therapeutics, Inc. 5
COMPASS Pathways 5
National Institute of Mental Health (NIMH) 5

Which drugs are being tested for Depressive Disorder, Treatment-Resistant? (3)

Shown in this order: most trials first. One row per drug, matched to a single molecule under all its names, ranked by number of trials.

Drugs tested
Drug Trials
PMI-150 (intranasal ketamine) 51
Esketamine 22
Duloxetine 8

Interventions as named in the registry (12)

Shown in this order: most trials first.

Interventions as named in the registry
Drug Trials
IV Psilocybin 20
D. Midazolam 12
Electroconvulsive Therapy 11
Sertralin 10
Transcranial Magnetic Stimulation 10

These are the names sponsors entered on ClinicalTrials.gov that we have not matched to a single molecule. Some are drugs under a brand or code name; others are procedures, doses or arm labels.

Which serious adverse events do Depressive Disorder, Treatment-Resistant trials report? (10)

Shown in this order: most subjects affected first. Subjects affected summed across trials, a cross-trial signal, not a rate.

Serious adverse events in this condition's trials
Adverse event Subjects affected Trials
Depression 71 13
Non-psychiatric Hospitalization 62 1
Suicide Attempt 28 7
Suicidal Ideation 21 6
Anxiety 17 6

Which publications cover Depressive Disorder, Treatment-Resistant? (473)

Shown in this order: major-topic papers first, then newest, then most linked to trials.

Not on this page

Not measured: delivery record.

Checked, with nothing recorded for this condition: prevalence, rare-disease identity, and sub-conditions in mesh.

Browse all condition evidence pages