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Smartphones and fitbits may help veterans with PTSD rethink cannabis use

NCT ID NCT07721285

Symptom relief Sponsor: VA Office of Research and Development Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jul 23, 2026 · Last updated Jul 28, 2026 · Updated 3 times

Summary

This study tests whether personalized feedback, based on real-time data from smartphones and wearable devices, can help Veterans with PTSD who use cannabis. The feedback aims to show how PTSD symptoms, cannabis use, and daily behaviors like sleep and activity are connected. The goal is to support healthier coping and better functioning, even for those not in formal treatment.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
a personalized feedback session based on motivational interviewing, using real-time data from smartphones and Fitbit devices
What this could lead to
If successful, this approach could offer a scalable, Veteran-centered tool to help people with PTSD and cannabis use make healthier choices and improve daily functioning.
What could go wrong
This is an early-phase study with only 60 participants, so results may not apply broadly. The intervention is brief and behavioral, so its impact on severe PTSD or heavy cannabis use may be limited.

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

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 60 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Jan 2027

An estimate. Start dates often move.

Expected to finish

Dec 2031

An estimate. End dates often move.

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

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: 1. U.S. Military Veterans 2. DSM-5 PTSD diagnosis verified by the Clinician-Administered PTSD Scale for DSM-5 (CAPS-5) 3. Cannabis use at least once per week over the past 3 months 4. If on psychotropic medication or in psychotherapy (excluding trauma-focused PTSD therapy; see exclusion criteria), regimen must be stable for =1 month 5. English-speaking and reading 6. Willing and able to use a smartphone and wearable device for 2 weeks Exclusion Criteria: 1. Severe substance use disorder (excluding cannabis), as acute withdrawal or other drug effects could confound data; mild/moderate non-cannabis disorders permitted with monitoring 2. Lifetime diagnosis of schizophrenia or other primary psychotic disorder due to potential confounding of EMA responses 3. Severe depression or high suicide risk; such Veterans will be referred for treatment and may be re-evaluated once stabilized 4. Cognitive or neurodegenerative disorder impairing ability to use EMA tools (e.g., moderate/severe TBI or dementia) 5. Veterans currently engaged in evidence-based trauma-focused therapy (e.g., CPT, PE, EMDR), will be excluded to isolate naturalistic symptom variability, as therapy can substantially impact PTSD symptoms; these individuals will be invited to re-contact the study post-treatment for consideration 6. Lack of smartphone ownership

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Conditions

The condition(s) this trial relates to.

cannabis dependence post-traumatic stress disorder

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Marijuana abuse Stress disorders, post-traumatic

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • VA San Diego Healthcare System, San Diego, CA

    San Diego, California, 92161-0002, United States

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