A Study Exploring Changes in a Variety of Biomarkers Following Dosing With MT1988 in Participants at Clinical High Risk for Psychosis

NCT ID: NCT07226895

Last Updated: 2025-11-12

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Clinical Phase

PHASE1/PHASE2

Total Enrollment

150 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-11-30

Study Completion Date

2027-04-30

Brief Summary

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The goal of this clinical trial is to learn how tests undertaken by people at high risk of developing psychosis (aged 17 to 30 years old) change when those people are given the study drug MT1988 daily for 8 weeks. This will help identify tests that could be used in later trials developing treatments for symptoms in people at high risk of developing psychosis, to measure whether those new treatments are effective.

The main question this trial aims to answer is:

Can any of the tests (biomarkers) used in this study detect changes in participants dosed with one of two different dose levels of MT1988?

Researchers will compare the results from two dose levels of MT1988 to a placebo group. Researchers do not expect to see the test results change in participants taking placebo and this will be compared to changes expected in test results in participants taking MT1988.

Participants will:

* take a dose of MT1988 or placebo twice per day for 8 weeks
* attend clinic appointments every two weeks to undertake assessments
* report any side effects they experience to the researchers

Detailed Description

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Conditions

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Clinical High Risk for Psychosis (CHR)

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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MT1988 Low Dose

Group Type EXPERIMENTAL

MT1988 Low Dose

Intervention Type DRUG

Oral dosing MT1988; dose level 1

MT1988 High Dose

Group Type EXPERIMENTAL

MT1988 High Dose

Intervention Type DRUG

Oral dosing MT1988; dose level 2

Placebo

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Oral Placebo; blinded to match MT1988 all doses

Interventions

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MT1988 Low Dose

Oral dosing MT1988; dose level 1

Intervention Type DRUG

MT1988 High Dose

Oral dosing MT1988; dose level 2

Intervention Type DRUG

Placebo

Oral Placebo; blinded to match MT1988 all doses

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Aged 17 to 30 years at time of consent.
* Capacity to provide informed consent. (For patients under 17 years, participants must assent and informed consent provided by one parent or legal guardian).
* Meet diagnostic criteria for Clinical High Risk of Psychosis (CHR).
* For females of reproductive potential - not pregnant or nursing and willing to comply with contraceptive requirements.

Exclusion Criteria

* Clinically significant medical disorder or laboratory test abnormality at Day 1.
* History of or current condition which may prevent participant from complying with study procedures.
* Past or current schizophrenia, other disorder with symptoms of psychosis, major cognitive disorder resulting from traumatic brain injury.
* Received antipsychotic medication equivalent to a total lifetime haloperidol dose \>50 mg.
* Current use of medications which could interfere with the study endpoints - to be assessed by the Investigator at screening.
* Unable to abstain from nicotine (e.g. cigarettes, vape) for two hours before cognitive testing.
* Unable to abstain from marijuana use on test day prior to test completion.
* History of suicide attempt or behavior in previous 12 months, or risk of suicidal behavior during the study.
Minimum Eligible Age

17 Years

Maximum Eligible Age

30 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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National Institute of Mental Health (NIMH)

NIH

Sponsor Role collaborator

Foundation for the National Institutes of Health

OTHER

Sponsor Role collaborator

ProCAN

UNKNOWN

Sponsor Role collaborator

CT-DPACC

UNKNOWN

Sponsor Role collaborator

Monument Therapeutics Limited

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Scott Woods, M.D.

Role: PRINCIPAL_INVESTIGATOR

Yale University of Medicine

Martha E Shenton, PhD

Role: PRINCIPAL_INVESTIGATOR

Massachusetts General Brigham

Locations

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University of California, Irvine

Irvine, California, United States

Site Status

University of California

Los Angeles, California, United States

Site Status

University of California, San Francisco

San Francisco, California, United States

Site Status

Yale University Conneticut Mental Health Center

New Haven, Connecticut, United States

Site Status

Beth Israel Deaconess Medical Center

Boston, Massachusetts, United States

Site Status

Washington University

St Louis, Missouri, United States

Site Status

Northwell Health

Glen Oaks, New York, United States

Site Status

Columbia University

New York, New York, United States

Site Status

Icahan School of Medicine at Mount Sinai

New York, New York, United States

Site Status

University of North Carolina at Chapel Hill

Chapel Hill, North Carolina, United States

Site Status

Ohio State University

Columbus, Ohio, United States

Site Status

Prevention Science Institute

Eugene, Oregon, United States

Site Status

University of Pennsylvania

Philadelphia, Pennsylvania, United States

Site Status

Temple University

Philadelphia, Pennsylvania, United States

Site Status

University of Pittsburgh School of Medicine

Pittsburgh, Pennsylvania, United States

Site Status

Countries

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United States

Central Contacts

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Sheryl Caswell

Role: CONTACT

Phone: +447539430768

Email: [email protected]

Facility Contacts

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Jason Schiffman

Role: primary

Carrie Bearden

Role: primary

Daniel Mathalon

Role: primary

Scott Woods

Role: primary

William Stone

Role: primary

Daniel Mamah

Role: primary

Ricardo Carrion

Role: primary

Ragy Girgis

Role: primary

Joshua Kantrowitz

Role: backup

Cheryl Corcoran

Role: primary

Diana Perkins

Role: primary

Nicholas Breitborde

Role: primary

Fred Sabb

Role: primary

Daniel Wolf

Role: primary

Christian Kohler

Role: backup

Lauren Ellman

Role: primary

Leslie Horton

Role: primary

Other Identifiers

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U01MH137298

Identifier Type: NIH

Identifier Source: secondary_id

View Link

U24MH137171

Identifier Type: NIH

Identifier Source: secondary_id

View Link

AMP SCZ MT1988 / SCZ201

Identifier Type: -

Identifier Source: org_study_id