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Purpose

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

Condition

Eligibility

Eligible Ages
Between 17 Years and 30 Years
Eligible Sex
All
Accepts Healthy Volunteers
No

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.

Study Design

Phase
Phase 1/Phase 2
Study Type
Interventional
Allocation
Randomized
Intervention Model
Parallel Assignment
Primary Purpose
Basic Science
Masking
Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)

Arm Groups

ArmDescriptionAssigned Intervention
Experimental
MT1988 Low Dose
  • Drug: MT1988 Low Dose
    Oral dosing MT1988; dose level 1
Experimental
MT1988 High Dose
  • Drug: MT1988 High Dose
    Oral dosing MT1988; dose level 2
Placebo Comparator
Placebo
  • Drug: Placebo
    Oral Placebo; blinded to match MT1988 all doses

Recruiting Locations

Washington University in St. Louis and nearby locations

Washington University
St Louis, Missouri 63110
Contact:
Daniel Mamah
314-362-6952
mamahd@wustl.edu

More Details

NCT ID
NCT07226895
Status
Recruiting
Sponsor
Monument Therapeutics Limited

Study Contact

Sheryl Caswell
+447539430768
info@monumenttx.com

Notice

Study information shown on this site is derived from ClinicalTrials.gov (a public registry operated by the National Institutes of Health). The listing of studies provided is not certain to be all studies for which you might be eligible. Furthermore, study eligibility requirements can be difficult to understand and may change over time, so it is wise to speak with your medical care provider and individual research study teams when making decisions related to participation.