Methamphetamine and Troriluzole

Recruiting now · Early Phase 1 · Has a placebo group

Conditions studied: Methamphetamine Use Disorder

In brief

This will be a human laboratory study evaluating the influence of troriluzole treatment on the effects of methamphetamine. Supported by and included in the Helping to End Addiction Long-term® (HEAL) Initiative.

Key facts

Study ID

NCT06989853

Run by

William Stoops

People needed

40

Starts

2025-08-25

Expected to finish

2029-02-28

Last updated by the study team

2026-06-08

Who can join

Age: 18 and older, up to 55. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• able to speak/read English,
• not seeking treatment for drug use at the time of the study,
• female or male between the ages of 18 and 55 years,
• recent methamphetamine use verified by methamphetamine positive urine, as well as fulfillment of DSM-5 diagnostic criteria for MUD,
• judged to be medically and psychiatrically healthy by study physicians other than the diagnosis for MUD (and OUD for the co-morbid MUD and OUD group, see below) at the time of screening,
• ECG, read by a cardiologist, within normal limits,
• females using an effective form of birth control and not pregnant or breastfeeding,
• no known contraindications (e.g., hepatic disease [save for asymptomatic HCV status as cleared by study physician]) or allergies to troriluzole. Individuals in the MUD and OUD group must also report recent opioid use, verified by opioid positive urine, as well as fulfillment of DSM-5 diagnostic criteria for OUD with physiologic dependence (determined to not be physically dependent if a participant arrives with a urine sample for drug screening that is negative for a short-acting opioid and does not have a score of 5 or greater on the clinical opioid withdrawal scale [COWS]).

You may not qualify if…

• unable to speak/read English,
• seeking treatment for drug use,
• under 18 years or over 55 years,
• no recent methamphetamine use as indicated by methamphetamine negative urine and no DSM-5 diagnosis of MUD,
• judged to be medically and psychiatrically unhealthy by study physicians at the time of screening,
• ECG, read by a cardiologist, outside normal limits,
• females not using an effective form of birth control or pregnant or breastfeeding,
• blood pressure readings indicative of hypertension (i.e., blood pressure > 140/90 mmHg) on 2 consecutive screening visits,
• BMI < 18 or > 30; weight < 50 kg,
• taking any medications prescribed by a physician for a chronic condition,
• any laboratory chemistry values (e.g., LFTs) > 3 times normal at screening or during admission,
• history of serious physical disease or diagnosis of any disorder (e.g., current hepatic disease [save for asymptomatic HCV status; as noted above], histories of seizure, diabetes, asthma or CNS tumors) or current or past histories of psychiatric disorder, including current or recent suicidal ideation that would limit compliance in the study, other than MUD or tobacco use disorder (and OUD for the co-morbid MUD/OUD group only) that in the opinion of the study physicians would interfere with participation and
• contraindications (e.g., hepatic disease) or allergies to troriluzole.

Where it is running

• Psychopharmacology of Addiction Laboratory — Lexington, Kentucky, United States (enrolling)

Full record on ClinicalTrials.gov

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