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Brain scans and heart rate may reveal why PTSD therapy works

NCT ID NCT05788302

Knowledge-focused Sponsor: Massachusetts General Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looks at how prolonged exposure therapy helps people with PTSD. Researchers will track 50 adults over 17 weeks, using brain scans, heart rate, and questionnaires before, during, and after treatment. The goal is to understand the mechanisms behind the therapy, not to test if it works.

What this could mean

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

Active substance
prolonged exposure therapy
What this could lead to
If successful, this study could reveal how and why prolonged exposure therapy works for PTSD, helping to improve and personalize treatment.
What could go wrong
This is a small pilot study (50 people) focused on understanding mechanisms, not proving effectiveness. Results may not apply to everyone with PTSD.

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 50 people

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

Started

Apr 2023

Expected to finish

Dec 2027

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

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. Age 18 or older 2. Meeting diagnostic criteria for PTSD as defined by DSM-5 assessed by the Diagnostic Interview for Anxiety, Mood, and Obsessive-compulsive and related Psychiatric Disorders (DIAMOND), and 3. Interest in starting PE Exclusion Criteria: 1. Current or past history of schizophrenic or other psychotic disorders, 2. Untreated Bipolar Disorder or a history of a manic/mixed episode within the last 6 months, 3. Severe traumatic brain injury, 4. Major neurological problems, 5. Current substance use disorder of moderate or greater severity assessed by the DIAMOND, 6. Active risk to self or others, 7. Current participation in therapy other than present-centered supportive therapy, 8. Previously received \> 2 sessions of Prolonged Exposure, and 9. Having no memory of their traumatic event. 10. For participants who are currently prescribed psychotropic medication, they will be eligible for the study provided medication use has been stable for 2 months prior to enrollment and remains stable throughout participation

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Conditions

The condition(s) this trial relates to.

post-traumatic stress disorder

As listed by the trial registrant

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

Post traumatic stress disorder

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

  • MGH

    RECRUITING

    Boston, Massachusetts, 02114, United States

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