Efficacy and Safety Study of Adjunctive Troriluzole in Obsessive Compulsive Disorder
A Randomized, Double-Blind, Placebo-Controlled Trial of Adjunctive Troriluzole in Obsessive Compulsive Disorder
1 other identifier
interventional
456
1 country
73
Brief Summary
The study's purpose is to evaluate the efficacy and safety of troriluzole as adjunctive therapy compared to placebo in subjects with Obsessive Compulsive Disorder (OCD)
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_3
Started Dec 2020
Longer than P75 for phase_3
73 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
November 12, 2020
CompletedFirst Posted
Study publicly available on registry
November 23, 2020
CompletedStudy Start
First participant enrolled
December 22, 2020
CompletedPrimary Completion
Last participant's last visit for primary outcome
October 27, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
October 27, 2025
CompletedJanuary 7, 2026
January 1, 2026
4.8 years
November 12, 2020
January 5, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
The total score on the Yale-Brown Obsessive Compulsive Scale (YBOCS)
Improvement is measured by a lower total score
Change in total score from baseline, assessed at screening, baseline, week 4, 8 &10
Secondary Outcomes (3)
Frequency of SAEs and AEs leading to discontinuation
From Screening through study completion, up to 10 weeks
Improvement in functional disability as assessed by the change in Sheehan Disability Scale (SDS)
From baseline through study completion (up to 10 weeks)
Improvement in global functioning responses assessed on the CGI-I scale.
From baseline through study completion (up to 10 weeks)
Study Arms (2)
Troriluzole
ACTIVE COMPARATORTroriluzole - 2 100mg capsules once daily for the first two weeks. Troriluzole - 2 140mg capsules once daily from week two through week ten.
Placebo
PLACEBO COMPARATORPlacebo - 2 100mg capsules once daily for the first two weeks. Placebo - 2 140mg capsules once daily from week two through week ten.
Interventions
Eligibility Criteria
You may qualify if:
- Primary diagnosis of obsessive-compulsive disorder (OCD) as per Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition as confirmed by the MINI at Screening; The duration of the subject's illness must be ≥ 1 year
- An inadequate response to current Standard of Care medication defined as selective serotonin reuptake inhibitor (excluding fluvoxamine) or clomipramine treatment at an adequate and stable dose for at least 8 weeks prior to screening and at least 12 weeks at baseline (adequate dose defined by USPI labeling); an inadequate response as defined per the MGH-TRQ-OCD, there has been minimal or no meaningful clinical benefit as perceived by the subject
- Determined by the investigator to be medically stable at baseline/randomization as assessed by medical history, physical examination, laboratory test results, and electrocardiogram testing. Subjects must be physically able and expected to complete the trial as designed
You may not qualify if:
- Subjects with a history of more than two (2) previous failed or inadequate treatment classes given for an adequate duration at an adequate dose as defined by the MGH-TRQ-OCD.
- Current or prior history of: bipolar I or II disorder, schizophrenia or other psychotic disorders, schizoaffective disorder, autism or autistic spectrum disorders, borderline personality disorder, antisocial personality disorder, Tourette's disorder, body dysmorphic disorder, hoarding disorder; or psychosurgery, Deep Brain Stimulation (DBS) or Electroconvulsive Therapy (ECT); or general medical condition that may confound safety and/or efficacy results
- Previous treatment in a study with troriluzole
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (73)
Metropolitan Neuro Behavioral Institute
Chandler, Arizona, 85284, United States
IMA Clinical Research
Phoenix, Arizona, 85012, United States
NoeisisPharma, LLC
Phoenix, Arizona, 85016, United States
CITrials (Clinical Innovations)
Bellflower, California, 90706, United States
Axiom Research, LLC
Colton, California, 92324, United States
WR-PRI, LLC (Encino)
Encino, California, 91316, United States
Behavioral Research Specialists, LLC
Glendale, California, 91206, United States
Pharmacology Research Institute
Los Alamitos, California, 90720, United States
Clarity Clinical Research
Los Angeles, California, 90064, United States
Excell Research, Inc
Oceanside, California, 92056, United States
NRC Research Institute
Orange, California, 92688, United States
Anderson Clinical Research
Redlands, California, 92374, United States
Lumos Clinical Research Center, LLC
San Jose, California, 95124, United States
California Neuroscience Research Medical Group, Inc
Sherman Oaks, California, 91403, United States
Stanford University
Stanford, California, 94305, United States
Collaborative Neuroscience Research
Torrance, California, 90502, United States
Yale University / Connecticut Mental Health Center
New Haven, Connecticut, 06519, United States
Comprehensive Psychiatric Care
Norwich, Connecticut, 06360, United States
Boca Raton Medical Institute
Boca Raton, Florida, 33431, United States
Advanced Clinical Research Network
Coral Gables, Florida, 33134, United States
Research in Miami Inc
Hialeah, Florida, 33013, United States
Accel Research Sites
Lakeland, Florida, 33803, United States
Innovative Clinical Research, Inc.
Lauderhill, Florida, 33319, United States
Health Care Family Rehab & Research
Miami, Florida, 33015, United States
Central Miami Medical Institute
Miami, Florida, 33125, United States
FIRC
Miami, Florida, 33173, United States
Florida Research Center, Inc.
Miami, Florida, 33174, United States
South Florida Research Phase I-IV , Inc.
Miami Springs, Florida, 33166, United States
Behavioral Clinical Research
North Miami, Florida, 33161, United States
Medical Research Group of Central Florida
Orange City, Florida, 32763, United States
APG Research, LLC
Orlando, Florida, 32803, United States
Combined Research Orlando Phase I-IV
Orlando, Florida, 32807, United States
Omega Research Consultants
Orlando, Florida, 32808, United States
MedBio Trials
Pembroke Pines, Florida, 33026, United States
Stedman Clinical Trials
Tampa, Florida, 33613, United States
Neurobehaviorial Institute
Weston, Florida, 33326, United States
Conquest Research LLC
Winter Park, Florida, 32789, United States
iResearch Atlanta, LLC
Decatur, Georgia, 30030, United States
iResearch Savannah
Savannah, Georgia, 31405, United States
Northwest Clinical Trials
Boise, Idaho, 83704, United States
Uptown Research Institute
Chicago, Illinois, 60640, United States
Revive Research Institute
Elgin, Illinois, 60123, United States
AMR-Baber Research, Inc
Naperville, Illinois, 60563, United States
Collective Medical Research
Overland Park, Kansas, 66210, United States
CBH Health
Gaithersburg, Maryland, 20877, United States
Pharmasite Research, Inc.
Pikesville, Maryland, 21208, United States
Massachusetts General Hospital
Boston, Massachusetts, 02114, United States
Boston Clinical Trials
Boston, Massachusetts, 02131, United States
ActivMed Practices and Research
Methuen, Massachusetts, 01844, United States
Sisu at RMG
Springfield, Massachusetts, 01103, United States
Michigan Clinical Research Institute PC
Ann Arbor, Michigan, 48105, United States
Precise Research Centers
Flowood, Mississippi, 39232, United States
Psychiatric Care and Research Center
O'Fallon, Missouri, 63368, United States
Altea Research
Las Vegas, Nevada, 89102, United States
Hassman Research Institute
Berlin, New Jersey, 08009, United States
Bio Behavioral Health
Toms River, New Jersey, 08755, United States
Integrative Clinical Trials, LLC
Brooklyn, New York, 11229, United States
Neurobehavioral Research, Inc
Cedarhurst, New York, 11516, United States
Bio Behavioral Institute
Great Neck, New York, 11021, United States
Bioscience Research, LLC
Mount Kisco, New York, 10549, United States
Manhattan Behavioral Medicine, PLLC
New York, New York, 10036, United States
Richmond Behavioral Associates
Staten Island, New York, 10312, United States
Clinical Inquest Center, Ltd
Beavercreek, Ohio, 45431, United States
Central States Research, LLC
Tulsa, Oklahoma, 74136, United States
Suburban Research Associates
Media, Pennsylvania, 19063, United States
Comprehensive Psychiatric Care Providers
Providence, Rhode Island, 02906, United States
BioBehavioral Research of Austin
Austin, Texas, 78759, United States
Relaro Medical Trials
Dallas, Texas, 75243, United States
North Texas Clinical Trials
Fort Worth, Texas, 76104, United States
Baylor College of Medicine
Houston, Texas, 77030, United States
Texas Center for Drug Development, Inc.
Houston, Texas, 77081, United States
Mt.Olympus Medical Research LLC
Missouri City, Texas, 77459, United States
Northwest Clinical Research Center
Bellevue, Washington, 98007, United States
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
November 12, 2020
First Posted
November 23, 2020
Study Start
December 22, 2020
Primary Completion
October 27, 2025
Study Completion
October 27, 2025
Last Updated
January 7, 2026
Record last verified: 2026-01