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PTSDPhase 3NCT03765138

Combined Treatment of Prolonged Exposure and Pramipexole for Posttraumatic Stress Disorder and Depression

A Phase 3 study testing PE/Pramipexole in people with PTSD and MDD, run by Research Foundation for Mental Hygiene, Inc. at 1 site in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

This pilot study aims to test the safety, feasibility, and initial efficacy of combined 10 week treatment of prolonged exposure (PE) and Pramipexole in patients with comorbid posttraumatic stress disorder (PTSD) and depression (MDD). Read more about this study

Who is it for?
Ages 18 to 60 years
Conditions the study is for
PTSD, MDD
What is being tested?
PE/Pramipexole
Could I receive a placebo?
No, everyone receives an active treatment
How many people
1 participants
Where
1 siteUnited States
Study dates
19 Feb 2019to 26 Aug 2019
Phase
Phase 3
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 60 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • Males or females between the ages of 18 and 60
  • Current DSM-V diagnosis of PTSD comorbid with MDD
  • CAPS-5 ≥ 25, and 17-item HRSD ≥ 17
  • Able to give consent, fluent in English

Who cannot join

  • Prior or current diagnosis with traumatic brain injury, bipolar disorder, psychotic disorder, gambling or impulse control disorders, or dementia
  • History of psychosis, psychotic disorder, mania or bipolar disorder
  • Severe substance use disorder excluding nicotine (i.e., nicotine use disorder and mild-moderate alcohol/cannabis use disorder are accepted)
  • Individuals at risk for suicide based on history and current mental state. BDI-II suicide item > 2 or CGI-Severity baseline score of 7.
  • Treatment with antidepressants or other psychotropic medication in the past 4 weeks (or 6 weeks for fluoxetine; an exception will be made for zolpidem used intermittently for sleep).
  • Pregnancy or plans to become pregnant during the period of the study.
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  • Current psychotherapy
  • Current unstable or untreated medical illness
  • Any condition that would exclude clinical MRI exam (e.g. pacemaker, paramagnetic metallic prosthesis, surgical clips, shrapnel, necessity for constant medicinal patch, some tattoos, severe obesity, claustrophobia)
  • History of untoward reaction to pramipexole

Trial locations and contacts

1 site in 1 country.

United States1 site
  • New York State Psychiatric Institute

    New York, New York, 10032

Other trials in United States

About this study

Official title: Combined Prolonged Exposure and Pramipexole Treatment for Patients With PTSD and Depression

This pilot study aims to test the safety, feasibility, and initial efficacy of combined 10 week treatment of prolonged exposure (PE) and Pramipexole in patients with comorbid posttraumatic stress disorder (PTSD) and depression (MDD). Resting state functional connectivity (rsFC) will be assessed at baseline and en of treatment.

Read the detailed description

Approximately half of the individuals with posttraumatic stress disorder (PTSD) present with major depressive disorder (MDD). Compared to PTSD alone, patients with comorbid PTSD-MDD demonstrate greater distress and poorer treatment outcome. Functional magnetic resonance imaging (fMRI) show that relative to PTSD alone, PTSD-MDD is associated with decreased resting state functional connectivity (rs-FC) in both fear- and reward-processing circuits. In addition, our data suggest that Prolonged Exposure (PE), first-line PTSD treatment, may successfully target impairments in the fear circuits, but not in the reward circuits, which may explain the treatment-refractory quality of PTSD-MDD.

The goal of this pilot study is to test the feasibility, safety and initial efficacy of an integrated therapeutic approach targeting both fear and reward impairments in PTSD-MDD patients. Specifically, the investigators will examine a combination treatment with PE, shown to effectively address fear circuitry deficits, and Pramipexole, a dopamine agonist, shown to increase reward circuit function and to have promise in treating depression but not previously studied in PTSD. The central hypothesis is that combined PE/Pramipexole will a) improve PTSD and depressive symptoms in PTSD-MDD patients, and b) increase functional connectivity of fear and reward pathways as measured by fMRI rs-FC. In this pilot study, 15 adults aged 18-60 years with PTSD-MDD will receive combined 10-week of PE and Pramipexole up to the maximum dose of 4mg a day. Clinical assessment will be conducted at baseline, week 5, post treatment and at 3-month follow up. Behaviorally assessments including the probabilistic reward task (PRT) and attention allocation tasks, and fMRI scans for resting state functional connectivity (rs-FC) will be conducted at baseline and end of treatment.

Conditions
PTSD, MDD
Being tested
PE/Pramipexole
Medical subject headings
Stress Disorders, Post-Traumatic

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • PE/PramipexoleCombination product

    Experimental: PE/Pramipexole Prolonged Exposure (PE) Therapy consists of 10 sessions of 90-minute duration, normally conducted once a week. Elements of PE include imaginal and in vivo exposure to trauma reminders; breathing retraining; cognitive restructuring; and PTSD psychoeducation.

    Pramipexole: In addition to receiving PE as described above, patients will have Pramipexole treatment. Daily dose will be started at 0.25 mg/day and increased by 0.25 mg/day every 3-4 days to a target of 2.5mg day by week 5. Beginning week 6 daily dose will be increased weekly by 0.5 mg/day to a maximum dose of 4mg. Dose will be increased as tolerated unless the patient has achieved remission and will be decreased in the event of intolerable adverse events.

Study groups in NCT03765138
Study groupRoleWhat they receive
PE/PramipexoleExperimentalExperimental: Prolonged Exposure/Pramipexole Prolonged Exposure (PE) Therapy consists of 10 sessions of 90-minute duration, normally conducted once a week. In addition to receiving PE as described above, patients will have Pramipexole treatment.
Receives: Combination Product: PE/Pramipexole

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change in PTSD Symptoms as Measured by the Clinician Administered PTSD Scale for DSM-5 (CAPS-5)

    The CAPS is the gold standard in PTSD assessment. It is a 30-item structured interview used for current (past week or month) and lifetime diagnosis of PTSD. The CAPS was designed to be administered by clinicians and clinical researchers who have a working knowledge of PTSD. The full interview takes 45-60 minutes to administer. Scores range from 0 to 80 with higher values represent a worse outcome.

    Measured: Baseline, Week 5, Week 10, 3 month follow up

  2. Change in Depressive Symptoms as Measured by the Hamilton Rating Scale for Depression (HRSD).

    The Hamilton Rating Scale for Depression is a 17-item instrument that was designed to measure frequency and intensity of depressive symptoms in individuals with major depressive disorder. Ratings are made using either a five- or a three-point scale, yielding total scores from 0 to 61, with higher values represent a worse outcome.

    Measured: Baseline, Week 5, Week 10, 3 month follow up

Secondary outcomes (1)
  1. Changes in Functional Connectivity of Fear and Reward Pathways as Measured by Functional Magentic Resonance Imaging (fMRI) Resting State Functional Connectivity (Rs-FC).

    The investigators will use fMRI scans at baseline and posttreatment to assess connectivity in fear and reward circuits

    Measured: baseline and week 10.

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted5 Dec 2018
  2. Study start19 Feb 2019
  3. Primary completion26 Aug 2019
  4. Study completion26 Aug 2019

Why it stopped: Patient recruitment difficulties

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
1 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03765138
Sponsor's protocol ID
Research Foundation for Mental
Status last verified
Nov 2019
First submitted
2 Dec 2018
Last updated
26 Nov 2019
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing PE/Pramipexole in people with PTSD and MDD, run by Research Foundation for Mental Hygiene, Inc. at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 10 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 26 Nov 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 26 Nov 2019). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in PTSD Symptoms as Measured by the Clinician Administered PTSD Scale for DSM-5 (CAPS-5) (time frame: Baseline, Week 5, Week 10, 3 month follow up). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 26 Nov 2019.

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