NCT06968832 · Rutgers, The State University of New Jersey
Project COMET: Massed Prolonged Exposure for PTSD and SUD
(PROJECT COMET)
What this study is about
The goal of this clinical trial is to learn if Massed Prolonged Exposure Therapy (M-PE) can improve PTSD symptoms and reduce substance use in adults receiving intensive outpatient (IOP) treatment for substance use disorder (SUD).
View original scientific description
The goal of this clinical trial is to learn if Massed Prolonged Exposure Therapy (M-PE) can improve PTSD symptoms and reduce substance use in adults receiving intensive outpatient (IOP) treatment for substance use disorder (SUD). The main questions it aims to answer are: * Does M-PE reduce PTSD symptoms more effectively than trauma treatment as usual (TAU)? * Does M-PE reduce the number of days participants use substances? * How do patient-centered outcomes (such as depression, suicidal thoughts, and quality of life) differ between M-PE and trauma TAU? * Researchers will compare M-PE to treatment as usual to see if M-PE leads to better mental health and substance use outcomes and lower dropout rates.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Enrolled in SUD treatment at Gateway Community Services
- Meet DSM-5 criteria for a SUD (Tobacco Use Disorder alone not sufficient for inclusion)
- Meet DSM-5 criteria for PTSD
- Able to give informed consent
Exclusion criteria
- severe cognitive impairment
- current suicidal or homicidal intent requiring immediate treatment
- current unstable psychotic or manic symptoms not attributable to SUD
Where
- Jacksonville, Florida
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Oct 27, 2025 · Source of record for eligibility and locations