Study to Evaluate the Efficacy, Safety, and Tolerability of Luvadaxistat in Participants With Cognitive Impairment Associated With Schizophrenia

Not Recruiting

Trial ID: NCT05182476


Study to evaluate the safety and efficacy of luvadaxistat compared with placebo on improving cognitive performance in participants with schizophrenia.

Official Title

A Randomized, Double-Blind, Placebo-Controlled, Parallel-Group Study to Evaluate the Efficacy, Safety, and Tolerability of Luvadaxistat in Subjects With Cognitive Impairment Associated With Schizophrenia, Followed by Open-Label Treatment

Stanford Investigator(s)

Jacob S. Ballon
Jacob S. Ballon

Associate Professor of Psychiatry and Behavioral Sciences (General Psychiatry and Psychology)

Melanie Lean

Clinical Assistant Professor, Psychiatry and Behavioral Sciences


Key Inclusion Criteria:

Participants must meet all of the following inclusion criteria:

1. Completed written informed consent.
2. Participant must be 18 to 50 years of age (inclusive) and able to comply with all protocol procedures.
3. Diagnosis of schizophrenia as defined by the Diagnostic and Statistical Manual of Mental Disorders (DSM-5).
4. The initial diagnosis of schizophrenia must be ≥1 year before screening.
5. The participant is currently receiving a stable regimen of psychotropic medications.
6. Participant has stable symptomatology ≥3 months before the screening visit.
7. The participant must have an adult informant.
8. A body weight of at least 45 kilograms (kg) and a body mass index (BMI) of 18.0 to 45.0 kg/meter squared (m\^2), inclusive.

Key Exclusion Criteria

Participants will be excluded from the study if they meet any of the following criteria:

1. Pregnant or breastfeeding or plans to become pregnant during the study.
2. Exhibit more than a minimal level of extrapyramidal signs/symptoms.
3. Schizophrenia diagnosis occurred before 12 years of age.
4. Lifetime diagnosis of schizoaffective disorder, bipolar disorder, or obsessive-compulsive disorder.
5. Recent occurrence of panic disorder, depressive episode, or other comorbid psychiatric conditions.
6. Considered by the investigator to be at imminent risk of suicide or injury to self, others, or property, or the participant has attempted suicide within 6 months before screening.
7. Diagnosis of moderate or severe substance use disorder (with the exception of nicotine dependence) within 12 months prior to screening.
8. Positive drug screen for disallowed substances.
9. Any other medical or psychiatric condition or cognitive impairment that may interfere with study conduct or clinical assessments.


drug: Placebo

drug: Luvadaxistat

Not Recruiting

Contact Information

Stanford University
School of Medicine
300 Pasteur Drive
Stanford, CA 94305
Diane Wakeham
(650) 736- 5243