Could ketamine help veterans overcome PTSD faster?
NCT ID NCT04560660
First seen Jun 25, 2026 · Last updated Aug 12, 2026 · Updated 5 times
Summary
This study tested whether repeated doses of ketamine, an FDA-approved anesthetic, could speed up the effects of talk therapy (Prolonged Exposure) for PTSD in 75 veterans. Participants received either ketamine or a placebo alongside therapy. The goal was to see if ketamine could reduce PTSD symptoms more quickly than therapy alone.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Ketamine
- What this could lead to
- If it works, this could point toward a faster way to reduce PTSD symptoms in veterans, making therapy more effective in less time.
- What could go wrong
- This is a small, early-phase trial with only 75 participants. Results may not apply to all PTSD patients, and ketamine can cause side effects like dissociation.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
-
Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
-
73 people
The number who actually took part.
- Started
-
Mar 2021
- Finished
-
Oct 2025
- Lead sponsor
-
A government agency
The lead sponsor is a US federal agency other than the NIH.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
-
18 to 75 years
- Sex
-
Anyone
- Healthy volunteers
-
Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * male or female Veterans between the ages of 18 and 75 years * diagnosis of PTSD * ability to provide written informed consent Exclusion Criteria: * females who are currently pregnant or breastfeeding * current high risk for suicide * history of moderate/severe head injury * history of psychosis * current episode of mania/hypomania * severe substance and/or alcohol use disorder in the last 6 months
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
Minneapolis VA Health Care System, Minneapolis, MN
Minneapolis, Minnesota, 55417-2309, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Can a therapist on a screen ease both trauma and pain?
- Zapping the Brain's fear hub: a new hope for PTSD?
- Can a drug combo or therapy dogs ease PTSD?
- Can six short writing sessions ease PTSD in underserved patients?
- Can a psychedelic compound help veterans and first responders with PTSD and alcohol use disorder?