CI

At a glance

ClinicalIndex Comparison Record
Phase 2Completed· 81 enrolled
Drug / intervention
GH001 +1 moredrug
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT05800860
NCT05800860Phase 2Completed

A Randomized, Double-blind, Placebo-controlled, Phase 2b Trial With an Open-label Extension to Determine the Safety and Efficacy of GH001 in Patients With Treatment-resistant Depression

GH Research Ireland Limited·interventional·Posted Apr 6, 2023·Updated May 31, 2025

In Brief

A Phase 2 clinical trial evaluating GH001 and Placebo for Treatment-resistant Depression. Completed, enrolled 81 participants across 11 sites in 6 countries.

Detailed Summary

The aim of this randomized, double-blind, placebo-controlled, phase 2b clinical trial is to investigate the safety and efficacy of GH001 (containing mebufotenin \[5-methoxy-N,N-dimethyltryptamine; 5-MeO-DMT\]) in patients with treatment-resistant depression (TRD). The study is comprised of a 7-day double-blind (DB) part (Part 1) and a 6-month open-label extension (OLE) part (Part 2). Patients will be randomized to receive GH001 or placebo in a 1:1 ratio. The primary endpoint is the mean change in the Montgomery-Åsberg Depression Rating Scale (MADRS) from baseline to Day 7.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesCzechia, Germany, Ireland, Netherlands, Poland, Spain
Collaborators--

Timeline

Phase 2CompletedFinished
202420252026
First PostedApr 6, 2023
Enrollment StartMay 24, 2023
Primary CompletionOct 4, 2024
Study CompletionMar 11, 2025
TodayJul 2, 2026
Enrollment to primary: 1.4 yearsPosted 3.2 years ago

Interventions

GH001drug

GH001 administered via inhalation

Placebodrug

Placebo administered via inhalation