About this trial
In the present study, 120 healthy volunteers (HV) will be randomized to one of three ketamine-induced pharmacoBOLD (phBOLD) arms: low, medium, and high. Within each ketamine arm, participants will be randomized to 4 days of "study drug" \[TS-134 (1st 20 participants) or XT (remaining 100 participants)\] or placebo in a 5:3 ratio (25 study drug:15 placebo per arm).
During the study, each participant will undergo a Screening Period (up to 31 days), a 4-day Treatment Period, and a total of two phBOLD sessions: a first session at Baseline and a second session on Day 4 of the Treatment Period, conducted at least 7 days apart, and a follow up visit.
Eligibility criteria
Qualifiers
Age between 18-55 at screen
Medically healthy, as assessed by study physician at screen
Capable of understanding the study procedures and able to provide informed consent
Eligible men and women must agree to use a reliable method of birth control (See section 5.3) during the study. Women who are post-menopausal or otherwise not of childbearing potential are also eligible.
Disqualifiers
Current or past Axis I psychiatric history (including Substance Use Disorder/Alcohol Use Disorder, with the exception of nicotine use disorder) as assessed at screen
Positive urine toxicology or alcohol at screen
History of recreational ketamine use, recreational PCP use, or an adverse reaction to ketamine. Participants who have participated in prior research ketamine studies will be eligible. Participants can have infusions not more frequently than biweekly, and not more than 1/month on average, therefore participants entering the study will need to wait one month if they had a single infusion and 6 weeks if they have had two closely spaced infusions.
History of first-degree relative with schizophrenia
Trial design
Treatments tested in this trial
- Ketamine
- Ts-134
- Placebo
Treatment groups
6
Treatment groupsSee each treatment group below.
Sponsors and collaborators
New York State Psychiatric Institute
Lead sponsor
National Institute of Mental Health (NIMH)
Collaborator