Psychedelic and ketamine research trials in Ireland
Data as of 11 October 2026. Source: ClinicalTrials.gov records held by PsychoactiveMap, refreshed from a reviewed snapshot.
4 registered studies are counted in Ireland. By compound: 4 ketamine. By registry status: 2 completed and 2 terminated. By phase: 1 early phase 1, 2 phase 1 and 1 phase 3. Reported start years run from 2015 (earliest) to 2021 (latest). Studies are linked to 2 institutions.
Country is taken from the research site linked to each registry record. A study counts once, and a study tagged with more than one compound is counted under each compound. Ketamine studies are counted only when PsychoactiveMap classifies them as psychiatric research; anaesthesia, sedation and pain studies are left out.
Educational information, not medical advice. A registry listing is not evidence of safety, benefit or results, and it is not a recommendation. PsychoactiveMap does not recruit, screen or refer participants. Status and other details are copied from the registry and can be out of date, so check the registry record and speak to a qualified health professional before any decision. Read the full disclaimer.
Recruiting now
None of the 4 counted studies in Ireland is listed in the registry as recruiting or not yet recruiting as of 11 October 2026. Status is reported by study teams and can be out of date.
At a glance
- 4 registered studies are counted on this page.
By compound
| Compound hub | Studies |
|---|---|
| Ketamine | 4 |
By registry status
| Status | Studies | Share |
|---|---|---|
| Completed | 2 | 50% |
| Terminated | 2 | 50% |
By phase
| Phase | Studies | Share |
|---|---|---|
| Early Phase 1 | 1 | 25% |
| Phase 1 | 2 | 50% |
| Phase 3 | 1 | 25% |
When studies started
| Start year | Studies |
|---|---|
| 2020 to 2023 | 2 |
| 2015 to 2019 | 2 |
All counted studies
All 4 counted studies, newest start first. The order is not a ranking and says nothing about quality. Titles are quoted from the registry. Each ID links to its own ClinicalTrials.gov record, which has the eligibility criteria and contacts.
| Title as registered | Registry ID | Status | Phase | Start | Institution and city |
|---|---|---|---|---|---|
| Ketamine As an Adjunctive Therapy for Major Depression (2) | NCT04939649 | Completed | Phase 3 | 2021-09-13 | University of Dublin, Trinity College, Dublin |
| Ketamine Interleaved With Electroconvulsive Therapy for Depression | NCT04082858 | Terminated | Phase 1 | 2020-01-06 | St Patrick's Hospital, Ireland, Dublin |
| Ketamine for Relapse Prevention in Recurrent Depressive Disorder | NCT02661061 | Terminated | Phase 1 | 2015-12-01 | St Patrick's Hospital, Ireland, Dublin |
| Ketamine for Depression Relapse Prevention Following ECT | NCT02414932 | Completed | Early Phase 1 | 2015-04-01 | St Patrick's Hospital, Ireland, Dublin |
About this data
Compound tags come from automated matching of the registry search term and have not been checked record by record. Counts are of registered studies, not of people, results or approvals. A registry listing is not evidence of safety, benefit or results.
Substance hubs for these compounds
Institution hubs in this country
Institutions in this country with at least 3 counted studies. The number is that institution's own count of studies, which can include studies not shown above if the registry lists them under another country.
- St Patrick's Hospital, Ireland: 4 studies
Condition hubs
Condition hubs that include studies counted in this country, with the number of those studies. Conditions are matched by keyword on registered titles, so one study can appear under more than one condition.
| Condition hub | Studies in this country |
|---|---|
| Depression | 4 |
| Bipolar disorder | 1 |
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