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A Phase 2 Clinical Trial of GH001 in Patients with Bipolar II Disorder and a Current Major Depressive Episode

A Phase 2 Clinical Trial of GH001 in Patients with Bipolar II Disorder and a Current Major Depressive Episode (GH001-BD-202)

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2021-006861-39-NL
Enrollment
15
Registered
2022-03-31
Start date
2022-06-20
Completion date
Unknown
Last updated
2025-01-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Bipolar II Disorder MedDRA version: 26.1 Level: HLGT Classification code 10026753 Term: Manic and bipolar mood disorders and disturbances System Organ Class: 10037175 - Psychiatric disorders

Interventions

Product Name: 5-MeO-DMT 6,12 and 18mg powder in vial for reconstitution Product Code: GH001 Pharmaceutical Form: Inhalation vapour, solution INN or Proposed INN: 5-Methoxy-N,N-Dimethyltryptamine CAS N

Sponsors

GH Research Ireland Limited
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: • Is male or female and in the age range between 18 and 64 years (inclusive) at screening; • Meets the trial criteria for bipolar II disorder and is experiencing a major depressive episode: • Meets the DSM-5 diagnostic criteria for bipolar II disorder with a current major depressive disorder episode confirmed by the Mini-International Neuropsychiatric Interview (MINI) v7.0.2 • Has a Montgomery–Åsberg Depression Rating Scale (MADRS) total score of = 24 at screening and pre-dose on Day 0 • Has a Young Mania Rating Scale (YMRS) total score = 8 at screening and prior to first dose on Day 0; • Agrees to keep any psychotherapy unchanged, and not initiate any new psychoactive medications during the trial; • Male patients must use prophylactic contraception (i.e., condom with spermicide or abstinence) and must not donate sperm for 30 days after GH001 dosing; Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range 15 F.1.3 Elderly (>=65 years) no F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: • Has bipolar II disorder with rapid cycling (four or more episodes of hypomania or depressive episodes in previous 12-month period); • Has, based on history, psychiatric assessment, and evaluation of the MINI, a current or prior diagnosis of bipolar I disorder, a manic episode, a psychotic disorder, major depressive disorder (MDD) or other mood disorder with psychotic features, obsessive compulsive disorder, PTSD, autism spectrum disorder, borderline personality disorder, clinically significant intellectual disability or any other psychiatric comorbidity that renders the patient unsuitable for the trial according to the investigator’s judgment; • Has one or more first or second degree relatives with a current or previously diagnosed psychotic disorder or MDD with psychotic features; • Is in the judgment of a trial psychiatrist or registered psychologist, at significant risk for suicide based on history, psychiatric assessment, and evaluation of suicidal ideation and suicidal behaviour based on the C-SSRS; • Has had an inadequate response to an adequate course of electroconvulsive therapy, vagal nerve stimulation, repetitive transcranial magnetic or electrical stimulation, or deep brain stimulation in the current episode of depression as assessed using the ATHF-SF; • Female patient who has a positive pregnancy test at screening or on the pre-test day (Day -1), is pregnant or lactating, or plans to become pregnant during the course of the trial and up to 30 days after GH001 dosing; • Patients with DSM-5 drug or alcohol use disorder within 6 months prior to screening.

Design outcomes

Primary

MeasureTime frame
Main Objective: To determine the onset and 7-day durability of anti-depressive effects of a single-day individualized dosing regimen of 6 mg, 12 mg and 18 mg of GH001 in patients with bipolar II disorder and a current major depressive episode. ;Secondary Objective: •To determine: othe safety and tolerability othe intensity and duration of the psychoactive effects (PsE) othe impact on cognitive outcomes. of a single-day individualized dosing regimen of 6 mg, 12 mg and 18 mg of GH001 in patients with bipolar II disorder and a current major depressive episode. ;Primary end point(s): •The anti-depressive effects of GH001 evaluated by: oChange from baseline in MADRS ;Timepoint(s) of evaluation of this end point: • Prior to first dose on Day 0; • Day 7.

Secondary

MeasureTime frame
Secondary end point(s): • The anti-depressive effects of GH001 evaluated by: • The proportion of patients in remission (MADRS =10); •Change from baseline in MADRS assessed; • The proportion of responders (=50% reduction from baseline in MADRS total score); • Change from baseline in Clinical Global Impression – Bipolar scale (CGI-BP); • Change from baseline in Bipolar Depression Rating Scale (BDRS); • The safety and tolerability of GH001 evaluated by: • Reporting of Treatment Emergent Adverse Events (TEAEs); • Clinically significant changes from baseline in ECG, vital signs, safety laboratory assessments, peak flow respirometry; • Assessment of sedation (Modified Observer'’s Assessment of Alertness and Sedation scale [MOAA/S]); • The incidence of AEs of mania or hypomania (as assessed using the DSM-5 criteria for mania/hypomania); • Change from baseline in YMRS; • Change from baseline in Clinician Administered Dissociative States Scale (CADSS); • Assessment of patient discharge readiness using the Clinical Global Assessment of Discharge Readiness (CGADR); • Change from baseline in Brief Psychiatric Rating Scale (BPRS); • Change from baseline in Columbia-Suicide Severity Rating Scale (C-SSRS); The PsE experienced by the patients when the PsE has subsided: • PsE assessment using the Peak Experience (PE) Scale to assess the achievement of a PE (PE scale total score =75); • Challenging Experience Questionnaire (CEQ); • Mystical Experience Questionnaire (MEQ-30); • Duration of the PsEs defined as the time from study drug dosing to the time when the PsE have subsided; The impact on cognitive outcomes as evaluated by: • Psychomotor Vigilance Task; • Auditory Verbal Learning Test; • Spatial Working Memory Task; • Digit Symbol Substitution Task. ;Timepoint(s) of evaluation of this end point: • 2 hours after the final study drug dosing on Day 0, and at Day 1 and Day 7; • 2 hours after the final study drug dosing on Day 0, and at Day 1; • at 2 hours after the final study d

Countries

Germany, Netherlands

Contacts

Public ContactGH Research Project Manager

GH Research Ireland Limited

clinicaltrials@ghres.com0035314378443

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026