Clinical Trials Register

Summary
EudraCT Number:	2022-000574-26
Sponsor's Protocol Code Number:	GH001-TRD-201
National Competent Authority:	Czechia - SUKL
Clinical Trial Type:	EEA CTA
Trial Status:	Ongoing
Date on which this record was first entered in the EudraCT database:	2022-11-22
Trial results

Index
A. PROTOCOL INFORMATION
B. SPONSOR INFORMATION
C. APPLICANT IDENTIFICATION
D. IMP IDENTIFICATION
D.8 INFORMATION ON PLACEBO
E. GENERAL INFORMATION ON THE TRIAL
F. POPULATION OF TRIAL SUBJECTS
G. INVESTIGATOR NETWORKS TO BE INVOLVED IN THE TRIAL
N. REVIEW BY THE COMPETENT AUTHORITY OR ETHICS COMMITTEE IN THE COUNTRY CONCERNED
P. END OF TRIAL

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A. Protocol Information

A.1

Member State Concerned

Czechia - SUKL

A.2

EudraCT number

2022-000574-26

A.3

Full title of the trial

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

Randomizované, dvojitě zaslepené, placebem kontrolované klinické hodnocení fáze 2b s otevřeným prodloužením ke stanovení bezpečnosti a účinnosti přípravku GH001 u pacientů s farmakorezistentní depresí

A.3.1

Title of the trial for lay people, in easily understood, i.e. non-technical, language

A randomized, double-blind, placebo-controlled, Phase 2b trial of GH001 in patients with treatment resistant depression

A.4.1

Sponsor's protocol code number

GH001-TRD-201

A.7

Trial is part of a Paediatric Investigation Plan

A.8

EMA Decision number of Paediatric Investigation Plan

B. Sponsor Information
B.Sponsor: 1
B.1.1	Name of Sponsor	GH Research Ireland Limited
B.1.3.4	Country	Ireland
B.3.1 and B.3.2	Status of the sponsor	Commercial
B.4 Source(s) of Monetary or Material Support for the clinical trial:
B.4.1	Name of organisation providing support	GH Research Ireland Ltd.
B.4.2	Country	Ireland
B.5 Contact point designated by the sponsor for further information on the trial
B.5.1	Name of organisation	GH Research Ireland Limited
B.5.2	Functional name of contact point	GH Research Project Manager
B.5.3	Address:
B.5.3.1	Street Address	28 Baggot Street Lower
B.5.3.2	Town/ city	Dublin 2
B.5.3.3	Post code	D02 NX43
B.5.3.4	Country	Ireland
B.5.4	Telephone number	+353 1 437 8334
B.5.6	E-mail	clinicaltrials@ghres.com

D. IMP Identification
D.IMP: 1
D.1.2 and D.1.3	IMP Role	Test
D.2	Status of the IMP to be used in the clinical trial
D.2.1	IMP to be used in the trial has a marketing authorisation	No
D.2.5	The IMP has been designated in this indication as an orphan drug in the Community	No
D.2.5.1	Orphan drug designation number
D.3 Description of the IMP
D.3.1	Product name	GH001
D.3.2	Product code	GH001
D.3.4	Pharmaceutical form	Inhalation vapour, liquid
D.3.4.1	Specific paediatric formulation	No
D.3.7	Routes of administration for this IMP	Inhalation use
D.3.8 to D.3.10 IMP Identification Details (Active Substances)
D.3.8	INN - Proposed INN	5-Methoxy-N,N-Dimethyltryptamine
D.3.9.1	CAS number	1019-45-0
D.3.9.2	Current sponsor code	GH001
D.3.9.3	Other descriptive name	5-methoxy-N,N-dimethyltryptamine
D.3.9.4	EV Substance Code	SUB222872
D.3.10	Strength
D.3.10.1	Concentration unit	mg milligram(s)
D.3.10.2	Concentration type	equal
D.3.10.3	Concentration number	6
D.3.11 The IMP contains an:
D.3.11.1	Active substance of chemical origin	Yes
D.3.11.2	Active substance of biological/ biotechnological origin (other than Advanced Therapy IMP (ATIMP)	No
	The IMP is a:
D.3.11.3	Advanced Therapy IMP (ATIMP)	No
D.3.11.3.1	Somatic cell therapy medicinal product	No
D.3.11.3.2	Gene therapy medical product	No
D.3.11.3.3	Tissue Engineered Product	No
D.3.11.3.4	Combination ATIMP (i.e. one involving a medical device)	No
D.3.11.3.5	Committee on Advanced therapies (CAT) has issued a classification for this product	No
D.3.11.4	Combination product that includes a device, but does not involve an Advanced Therapy	Yes
D.3.11.5	Radiopharmaceutical medicinal product	No
D.3.11.6	Immunological medicinal product (such as vaccine, allergen, immune serum)	No
D.3.11.7	Plasma derived medicinal product	No
D.3.11.8	Extractive medicinal product	No
D.3.11.9	Recombinant medicinal product	No
D.3.11.10	Medicinal product containing genetically modified organisms	No
D.3.11.11	Herbal medicinal product	No
D.3.11.12	Homeopathic medicinal product	No
D.3.11.13	Another type of medicinal product	No
D.IMP: 2
D.1.2 and D.1.3	IMP Role	Test
D.2	Status of the IMP to be used in the clinical trial
D.2.1	IMP to be used in the trial has a marketing authorisation	No
D.2.5	The IMP has been designated in this indication as an orphan drug in the Community	No
D.2.5.1	Orphan drug designation number
D.3 Description of the IMP
D.3.1	Product name	GH001
D.3.2	Product code	GH001
D.3.4	Pharmaceutical form	Inhalation vapour, liquid
D.3.4.1	Specific paediatric formulation	No
D.3.7	Routes of administration for this IMP	Inhalation use
D.3.8 to D.3.10 IMP Identification Details (Active Substances)
D.3.8	INN - Proposed INN	5-Methoxy-N,N-Dimethyltryptamine
D.3.9.1	CAS number	1019-45-0
D.3.9.2	Current sponsor code	GH001
D.3.9.3	Other descriptive name	5-methoxy-N,N-dimethyltryptamine
D.3.9.4	EV Substance Code	SUB222872
D.3.10	Strength
D.3.10.1	Concentration unit	mg milligram(s)
D.3.10.2	Concentration type	equal
D.3.10.3	Concentration number	12
D.3.11 The IMP contains an:
D.3.11.1	Active substance of chemical origin	Yes
D.3.11.2	Active substance of biological/ biotechnological origin (other than Advanced Therapy IMP (ATIMP)	No
	The IMP is a:
D.3.11.3	Advanced Therapy IMP (ATIMP)	No
D.3.11.3.1	Somatic cell therapy medicinal product	No
D.3.11.3.2	Gene therapy medical product	No
D.3.11.3.3	Tissue Engineered Product	No
D.3.11.3.4	Combination ATIMP (i.e. one involving a medical device)	No
D.3.11.3.5	Committee on Advanced therapies (CAT) has issued a classification for this product	No
D.3.11.4	Combination product that includes a device, but does not involve an Advanced Therapy	Yes
D.3.11.5	Radiopharmaceutical medicinal product	No
D.3.11.6	Immunological medicinal product (such as vaccine, allergen, immune serum)	No
D.3.11.7	Plasma derived medicinal product	No
D.3.11.8	Extractive medicinal product	No
D.3.11.9	Recombinant medicinal product	No
D.3.11.10	Medicinal product containing genetically modified organisms	No
D.3.11.11	Herbal medicinal product	No
D.3.11.12	Homeopathic medicinal product	No
D.3.11.13	Another type of medicinal product	No
D.IMP: 3
D.1.2 and D.1.3	IMP Role	Test
D.2	Status of the IMP to be used in the clinical trial
D.2.1	IMP to be used in the trial has a marketing authorisation	No
D.2.5	The IMP has been designated in this indication as an orphan drug in the Community	No
D.2.5.1	Orphan drug designation number
D.3 Description of the IMP
D.3.1	Product name	GH001
D.3.2	Product code	GH001
D.3.4	Pharmaceutical form	Inhalation vapour, liquid
D.3.4.1	Specific paediatric formulation	No
D.3.7	Routes of administration for this IMP	Inhalation use
D.3.8 to D.3.10 IMP Identification Details (Active Substances)
D.3.8	INN - Proposed INN	5-Methoxy-N,N-Dimethyltryptamine
D.3.9.1	CAS number	1019-45-0
D.3.9.2	Current sponsor code	GH001
D.3.9.3	Other descriptive name	5-methoxy-N,N-dimethyltryptamine
D.3.9.4	EV Substance Code	SUB222872
D.3.10	Strength
D.3.10.1	Concentration unit	mg milligram(s)
D.3.10.2	Concentration type	equal
D.3.10.3	Concentration number	18
D.3.11 The IMP contains an:
D.3.11.1	Active substance of chemical origin	Yes
D.3.11.2	Active substance of biological/ biotechnological origin (other than Advanced Therapy IMP (ATIMP)	No
	The IMP is a:
D.3.11.3	Advanced Therapy IMP (ATIMP)	No
D.3.11.3.1	Somatic cell therapy medicinal product	No
D.3.11.3.2	Gene therapy medical product	No
D.3.11.3.3	Tissue Engineered Product	No
D.3.11.3.4	Combination ATIMP (i.e. one involving a medical device)	No
D.3.11.3.5	Committee on Advanced therapies (CAT) has issued a classification for this product	No
D.3.11.4	Combination product that includes a device, but does not involve an Advanced Therapy	Yes
D.3.11.5	Radiopharmaceutical medicinal product	No
D.3.11.6	Immunological medicinal product (such as vaccine, allergen, immune serum)	No
D.3.11.7	Plasma derived medicinal product	No
D.3.11.8	Extractive medicinal product	No
D.3.11.9	Recombinant medicinal product	No
D.3.11.10	Medicinal product containing genetically modified organisms	No
D.3.11.11	Herbal medicinal product	No
D.3.11.12	Homeopathic medicinal product	No
D.3.11.13	Another type of medicinal product	No

D.8 Information on Placebo
D.8 Placebo: 1
D.8.1	Is a Placebo used in this Trial?	Yes
D.8.3	Pharmaceutical form of the placebo	Inhalation vapour, liquid
D.8.4	Route of administration of the placebo	Inhalation use

E. General Information on the Trial

E.1 Medical condition or disease under investigation

E.1.1

Medical condition(s) being investigated

Treatment-resistant
depression (TRD)

E.1.1.1

Medical condition in easily understood language

Depression that has not improved with other treatments.

E.1.1.2

Therapeutic area

Psychiatry and Psychology [F] - Mental Disorders [F03]

MedDRA Classification

E.1.2 Medical condition or disease under investigation

E.1.2	Version	21.1
E.1.2	Level	PT
E.1.2	Classification code	10057840
E.1.2	Term	Major depression
E.1.2	System Organ Class	10037175 - Psychiatric disorders

E.1.3

Condition being studied is a rare disease

E.2 Objective of the trial

E.2.1

Main objective of the trial

Primary efficacy objective:
• To determine the efficacy of a single day individualized dosing regimen (IDR) of GH001 compared
with placebo in improving depressive symptoms as assessed by MADRS in patients with
treatment-resistant depression (TRD) at the end of the 7-day double-blind (DB) Part 1.

E.2.2

Secondary objectives of the trial

Other efficacy objectives:
• To determine the effect of a single day IDR of GH001 compared with placebo on depressive symptoms
as assessed by MADRS, global disease severity as assessed by CGI-S, anxiety as assessed by HAM-A,
and quality of life as assessed by Q-LES-Q-SF in patients with TRD at the end of the 7-day DB Part 1.
• To determine the effect of GH001 IDR as needed on depressive symptoms as assessed by MADRS,
global disease severity as assessed by CGI-S, anxiety as assessed by the HAM-A, and quality of life as
assessed by Q-LES-Q-SF in patients with TRD during the 6-month open-label extension (OLE) Part 2.

For full details please refer to the Protocol.

E.2.3

Trial contains a sub-study

E.3

Principal inclusion criteria

1.Is in the age range between 18 and 64 years (inclusive) at the time of informed consent.
2.Meets the trial criteria for TRD as assessed by a study psychiatrist:
a.Meets the Diagnostic and Statistical Manual of Mental Disorders 5 (DSM-5) criteria for single-episode MDD or recurrent MDD, without psychotic features confirmed by the Mini-International Neuropsychiatric Interview (MINI)
b.The current MDE must be deemed “valid” based upon the Massachusetts General Hospital State versus trait Assessability Face and Ecological validity Rule of 3Ps (MGH SAFER) criteria interview.
c.Had nonresponse (≤25% improvement) to ≥2 and ≤5 oral antidepressant treatments administered during the current episode of depression

E.4

Principal exclusion criteria

1.Has, based on history, psychiatric assessment, and evaluation of the MINI during the screening period, a first MDD episode after age 60, a current or prior diagnosis of a psychotic disorder, MDD, or other mood disorder with psychotic features, bipolar disorder, obsessive compulsive disorder, posttraumatic stress disorder, autism spectrum disorder, borderline personality disorder, schizophrenia, delusional disorder, paranoid personality disorder, schizoaffective disorder, clinically significant intellectual disability, antisocial personality disorder, schizotypal personality disorder, or any other psychiatric comorbidity that renders the patient unsuitable for the trial according to a study psychiatrist.
2.Has significant suicide risk as defined by (a) suicidal ideation as endorsed on items 4 or 5 on the C-SSRS within the past year, during the screening period, or at Baseline; or (b) suicidal behaviors within the past year; or (c) clinical assessment of significant suicidal risk during clinical interview; or (d) non-suicidal self-injury within the past year.
3.Has 1 or more first degree relatives with a current or prior diagnosis of bipolar disorder, psychotic disorder, or other mood disorder (including MDD) with psychotic features.
4.Undergoing systematic psychotherapy (including cognitive behavioral therapy [CBT]) that is planned to be modified or planning to initiate psychotherapy during the trial. CBT must have been ongoing for the last 3 months prior to Baseline.
5.Has any current or past clinically significant condition (e.g., severe infection, severe pulmonary disease, uncontrolled hypertension, uncontrolled diabetes, severe cardiovascular disease, myocardial infarction or clinically significant arrythmia within the past year, severe hepatic or severe renal failure, brain disorder including seizure, stroke, dementia, degenerative neurologic diseases, meningitis, encephalitis, and head injury with loss of consciousness) that may interfere with the interpretation of the trial results, constitute a health risk for the patient, or that otherwise renders the patient unsuitable for the trial according to the investigator’s judgement.
6.Fulfils criteria for DSM 5 alcohol or substance use disorder (excluding tobacco and caffeine use disorders) within the preceding 1 year, as assessed via the MINI.
7.Takes or has taken disallowed recent or concomitant treatments or it is anticipated that the patient will require treatment with at least 1 of the disallowed concomitant treatments during the trial.
8.Has previously experienced a significant adverse reaction to a hallucinogenic or psychedelic drug (e.g., psilocybin, Psilocybe spp. mushrooms, 5 MeO DMT, DMT, ayahuasca, LSD, mescaline) according to the investigator’s judgement.

E.5 End points

E.5.1

Primary end point(s)

Primary endpoint:
• Mean change in MADRS from Baseline to Day 7.

E.5.1.1

Timepoint(s) of evaluation of this end point

The analysis of the primary efficacy endpoint, change in MADRS from Baseline to D7, will be performed on the
FAS by analysis of covariance with treatment and Baseline MADRS score in the model.

E.5.2

Secondary end point(s)

n/a

E.5.2.1

Timepoint(s) of evaluation of this end point

n/a

E.6 and E.7 Scope of the trial

E.6

Scope of the trial

E.6.1

Diagnosis

E.6.2

Prophylaxis

E.6.3

Therapy

Yes

E.6.4

Safety

Yes

E.6.5

Efficacy

Yes

E.6.6

Pharmacokinetic

E.6.7

Pharmacodynamic

Yes

E.6.8

Bioequivalence

E.6.9

Dose response

E.6.10

Pharmacogenetic

E.6.11

Pharmacogenomic

E.6.12

Pharmacoeconomic

E.6.13

Others

E.7

Trial type and phase

E.7.1

Human pharmacology (Phase I)

E.7.1.1

First administration to humans

E.7.1.2

Bioequivalence study

E.7.1.3

Other

E.7.1.3.1

Other trial type description

E.7.2

Therapeutic exploratory (Phase II)

Yes

E.7.3

Therapeutic confirmatory (Phase III)

E.7.4

Therapeutic use (Phase IV)

E.8 Design of the trial

E.8.1

Controlled

Yes

E.8.1.1

Randomised

Yes

E.8.1.2

Open

E.8.1.3

Single blind

E.8.1.4

Double blind

Yes

E.8.1.5

Parallel group

E.8.1.6

Cross over

E.8.1.7

Other

Yes

E.8.1.7.1

Other trial design description

Open-label extension to follow the DB, randomized and placebo- controlled phase

E.8.2

Comparator of controlled trial

E.8.2.1

Other medicinal product(s)

E.8.2.2

Placebo

Yes

E.8.2.3

Other

E.8.2.4

Number of treatment arms in the trial

E.8.3

The trial involves single site in the Member State concerned

E.8.4

The trial involves multiple sites in the Member State concerned

Yes

E.8.4.1

Number of sites anticipated in Member State concerned

E.8.5

The trial involves multiple Member States

Yes

E.8.5.1

Number of sites anticipated in the EEA

E.8.6 Trial involving sites outside the EEA

E.8.6.1

Trial being conducted both within and outside the EEA

E.8.6.2

Trial being conducted completely outside of the EEA

E.8.7

Trial has a data monitoring committee

Yes

E.8.8

Definition of the end of the trial and justification where it is not the last visit of the last subject undergoing the trial

LVLS

E.8.9 Initial estimate of the duration of the trial

E.8.9.1

In the Member State concerned years

E.8.9.1

In the Member State concerned months

E.8.9.1

In the Member State concerned days

E.8.9.2

In all countries concerned by the trial years

E.8.9.2

In all countries concerned by the trial months

F. Population of Trial Subjects

F.1 Age Range

F.1.1

Trial has subjects under 18

F.1.1.1

In Utero

F.1.1.2

Preterm newborn infants (up to gestational age < 37 weeks)

F.1.1.3

Newborns (0-27 days)

F.1.1.4

Infants and toddlers (28 days-23 months)

F.1.1.5

Children (2-11years)

F.1.1.6

Adolescents (12-17 years)

F.1.2

Adults (18-64 years)

Yes

F.1.2.1

Number of subjects for this age range:

F.1.3

Elderly (>=65 years)

F.2 Gender

F.2.1

Female

Yes

F.2.2

Male

Yes

F.3 Group of trial subjects

F.3.1

Healthy volunteers

F.3.2

Patients

Yes

F.3.3

Specific vulnerable populations

Yes

F.3.3.1

Women of childbearing potential not using contraception

F.3.3.2

Women of child-bearing potential using contraception

Yes

F.3.3.3

Pregnant women

F.3.3.4

Nursing women

F.3.3.5

Emergency situation

F.3.3.6

Subjects incapable of giving consent personally

F.3.3.7

Others

F.4 Planned number of subjects to be included

F.4.1

In the member state

F.4.2

For a multinational trial

F.4.2.1

In the EEA

F.4.2.2

In the whole clinical trial

F.5

Plans for treatment or care after the subject has ended the participation in the trial (if it is different from the expected normal treatment of that condition)

None

G. Investigator Networks to be involved in the Trial

N. Review by the Competent Authority or Ethics Committee in the country concerned

Competent Authority Decision

Authorised

Date of Competent Authority Decision

2023-04-24

Ethics Committee Opinion of the trial application

Favourable

Ethics Committee Opinion: Reason(s) for unfavourable opinion

Date of Ethics Committee Opinion

2023-03-08

P. End of Trial
P.	End of Trial Status	Ongoing

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