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NCT07734493PHASE1Recruiting

A Study of LTX-001 In Adult Participants With Acute Exacerbation of Schizophrenia

Leal Therapeutics, Inc

Start Date

8/3/2026

Completion Date

3/1/2027

Summary

The purpose of this clinical trial is to learn whether the investigational drug LTX-001 is safe and well tolerated in adults with a diagnosis of schizophrenia who are having a recent worsening of their symptoms (an acute exacerbation). Additional questions it aims to answer are: * how does the amount of the study drug in the body change over time (pharmacokinetics) * how does the study drug affect the symptoms of schizophrenia * how do certain markers in the blood change after administration of LTX-001 (pharmacodynamics) Researchers will compare different dose levels of LTX-001 to an inactive product (placebo) to see what differences there are between the two treatments. After successfully screening for the study, participants will stay in a research unit for about five weeks and return one week later for a follow-up visit.

Detailed Description

After providing informed consent, eligible participants will be asked to visit the study site 3 times and stay overnight for 35 nights (up to 49 nights if up to 14 days of antipsychotic washout is applicable). Procedures will include: * A review of medical history and medications * Physical exams, including a neurologic (nervous system) assessment * Electrocardiograms (a measure of the heart's electrical activity) * Blood and urine collection * Psychiatric assessments including the Mini International Neuropsychiatric Exam (MINI), the Brief Assessment of Cognition in Schizophrenia (BACS), and the Positive and Negative Syndrome Scale (PANSS) * Overall assessment of status via the Clinical Global Impression Scale - Severity (CGI-S) * Assessment of extrapyramidal symptoms (EPS) as assessed by the Modified Simpson-Angus Scale (M-SAS), the Abnormal Involuntary Movement Scale (AIMS) and the Barnes Akathisia Rating scale (BARS) * Assessment of suicidality risk via the Columbia Suicidality Severity Rating Scale (C-SSRS) * Quantitative electroencephalography (qEEG) assessments * Ophthalmologic examinations * Administration of the study drug (or placebo) by mouth

Eligibility Criteria

Age Range: 18 years to 55 years

Inclusion Criteria: * BMI \> 17.5 and \< 38.0 kg/m2 and a total body weight \> 50.0 kg (110 lbs) * Primary diagnosis of schizophrenia per the Diagnostic and Statistical Manual of Mental Disorders, 5th Edition (DSM-5-TR) * Experiencing an acute exacerbation or relapse of symptoms, with onset less than 2 months prior to screening for the study * PANSS total score ≥ 80 at the time of screening for the study * Not currently on antipsychotic medication, or is willing to discontinue all prohibited psychotropic medications prior to and during the trial period * Sexually active adults must be willing to use an acceptable contraceptive method throughout the study Exclusion Criteria: * Evidence of organ dysfunction or any clinically significant abnormal finding at physical examination * History of treatment resistance (e.g., failure to respond to ≥ 2 adequate antipsychotic trials) or failure to respond to use of clozapine * Current DSM-5-TR diagnosis other than schizophrenia * Pregnant or lactating female * Substance use disorder within 1 year prior to screening or recreational use of drugs within 3 months prior to screening * Moderate to severe alcohol use disorder as per DSM-5-TR within the past year or excessive use of alcohol within 12 months prior to screening * Positive testing for human immunodeficiency virus (HIV)-1 and -2 antibody, hepatitis B surface antigen (HBsAg), or hepatitis C virus (HCV) antibody at screening

Interventions

DRUG

LTX-001 once daily

DRUG

Placebo

DRUG

LTX-001 twice daily

Interested in This Trial?

Contact the trial locations directly using the information below to learn more about enrollment.

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Conditions

Schizophrenia

Locations

Pillar Clinical Research, LLC

Little Rock, Arkansas 72204

United States

Collaborative Neuroscience Research, LLC

Los Alamitos, California 90720

United States

University Clinical Research-DeLand, LLC d/b/a Accel Research Sites - DeLand Clinical Research Unit

DeLand, Florida 32720

United States

Behavioral Clinical Research, Inc.

Hollywood, Florida 33021

United States

CenExel Hollywood FL

Hollywood, Florida 33024

United States

Innovative Clinical Research, Inc.

Miami Lakes, Florida 33016

United States

CenExel iResearch, LLC

Decatur, Georgia 30030

United States

CBH Health LLC., dba CenExel Gaithersburg MD

Gaithersburg, Maryland 20877

United States

Hassman Research Institute, LLC

Marlton, New Jersey 08053

United States

Pillar Clinical Research, LLC

Richardson, Texas 75080

United States