Phase 2 PTSD Trial, Recruiting NCT04452500 Sponsor: VA Office of Research and Development Condition: PTSD
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Phase 2 PTSD Trial, Recruiting

NCT04452500
Recruiting Phase 2

Who may be able to join

AI generated eligibility summary. Written by an AI model from the official source data and checked on a sample basis. It can contain mistakes, so confirm anything important against the original source. How we use AI

Who might be able to join this trial:

  • People who have served in the US military
  • People who can read and understand English
  • People who are able to give written consent to participate
  • People with PTSD symptoms severe enough to score 23 or higher on a specific PTSD assessment called the CAPS-5, given at the screening visit
  • Men and pre-menopausal women who agree to use two forms of reliable contraception during the trial, one of which must be a barrier method (such as a condom)
  • People already taking an SSRI or SNRI antidepressant for PTSD, provided the dose has been stable for at least 8 weeks before joining
  • People already taking trazodone for sleep, provided the dose has been stable
  • People already taking opioid pain medication, provided the dose has been stable
  • People currently in talk therapy or psychotherapy, provided that treatment has been stable for at least 6 weeks

Who may not be able to join:

  • People who have had a problem with alcohol use serious enough to be diagnosed as Alcohol Use Disorder in the past 3 months
  • People who have had a problem with marijuana or other drug use serious enough to be diagnosed as Substance Use Disorder in the past 3 months
  • People who have ever been diagnosed with Bipolar Disorder, Schizophrenia, Schizoaffective Disorder, Obsessive-Compulsive Disorder (OCD), or Major Depressive Disorder with psychotic features
  • People who have been through a deeply traumatic event in the past 3 months
  • People currently taking certain antidepressants, such as doxepin or tricyclic antidepressants
  • People currently taking certain mood-stabilising medications, such as lithium
  • People currently taking antipsychotic medications
  • People considered to be at high risk of suicide or violent behaviour
  • People who have sleep apnea and are not currently receiving any treatment for it (such as a CPAP machine)
  • People currently taking corticosteroid medications, whether taken by mouth or inhaled
  • People with a history of neurological disease (conditions affecting the brain or nervous system)
  • People with angina (chest pain from the heart), congestive heart failure, or low blood pressure
  • People who have had a heart attack in the past 6 months
  • People with a heart block or irregular heartbeat
  • People with kidney failure, liver failure, or pancreatitis
  • People with severe chronic obstructive pulmonary disease (COPD), a serious lung condition
  • People with a history of liver disease where certain liver blood test results (AST or ALT) are more than twice the normal range
  • People with a history of kidney disease where a kidney function blood test (eGFR) shows a result below 60 ml/min
  • People with additional risk factors for a serious heart rhythm problem called Torsades de pointes — for example, heart failure, low potassium levels, or a family history of a heart condition called Long QT Syndrome
  • People taking certain medications known to affect heart rhythm
  • People taking certain medications that could interfere with how the study drug works
  • People with high blood pressure that is not controlled by medication
  • People with diabetes that is not well managed
  • People with a history of certain types of head injuries (confirm with trial site)
  • People with mild cognitive impairment (early-stage problems with memory or thinking)

Important: Always verify eligibility with the trial site directly before applying.

Based on publicly available eligibility criteria from ClinicalTrials.gov. Verify directly with the trial site before acting. This is not medical advice.

This is a simplified plain English summary of the eligibility criteria. Full criteria are set by the trial investigators and may include additional requirements not shown here. Never self-exclude from a trial based on this summary. Contact the trial site directly to confirm your eligibility.
Last synced 13 July 2026
Phase 2: approximately ~30% of drugs entering this phase reach regulatory approval, based on published industry-wide historical data. This is not specific to this trial.
Phase success rates shown are historical industry-wide averages based on published data. They are not a prediction for this specific trial or your individual situation.

Contact this trial

Principal Investigator: Thomas C. Neylan, MD, San Francisco VA Medical Center, San Francisco, CA

Phone: (415) 221-4810

Contact details sourced from ClinicalTrials.gov. Verify directly with the trial site before attending.

GP referral letter

Print a one-page summary to share with your doctor.

Trial details

Status
Recruiting
Phase
Phase 2
Registry
ClinicalTrials.gov
Start date
15 October 2022
Est. completion
31 December 2026

Where this trial is recruiting

🇺🇸 United States

Primary endpoints

Clinician Administered PTSD Scale for DSM-5 (CAPS); Frequency, Intensity, Burden of Side Effects (FIBSER)

Can't join this trial?

Expanded access pathways

If this trial is not available to you, other access pathways may exist. In Australia, the TGA Special Access Scheme allows access to unapproved therapeutic goods for individual patients.

TGA Special Access Scheme information

Find other recruiting trials on ClinicalTrials.gov

Data last synced from ClinicalTrials.gov: 13 July 2026. Trial status can change. Always verify current status directly with the trial site before making any decision.

Trial recruitment status can change without notice between our nightly data updates. Always contact the trial site directly to confirm current recruitment status before making any decisions or travel arrangements.

View original record on ClinicalTrials.gov