Investigating the orexin system for treating PTSD and related psychosis

The orexin system as a target for PTSD and comorbid psychosis

['FUNDING_OTHER'] · SOUTH TEXAS VETERANS HEALTH CARE SYSTEM · NIH-10926781

This study is looking at how a brain system related to sleep and wakefulness might affect people with PTSD who also have psychotic symptoms, and it’s testing a safe medication to see if it can help improve their symptoms in a new way.

Quick facts

Phase['FUNDING_OTHER']
Study typeNih_funding
SexAll
SponsorSOUTH TEXAS VETERANS HEALTH CARE SYSTEM (nih funded)
Locations1 site (SAN ANTONIO, UNITED STATES)
Trial IDNIH-10926781 on ClinicalTrials.gov

What this research studies

This research explores the role of the orexin system in patients with PTSD who also experience psychotic symptoms. It aims to understand how specific brain circuits, particularly involving the insular cortex, influence dopamine function and behavior in these patients. By using an FDA-approved drug called Suvorexant, which targets orexin receptors, the study seeks to identify new therapeutic strategies that could alleviate symptoms without the adverse effects associated with traditional treatments. The research will involve animal models to provide insights that could eventually translate to human applications.

Who could benefit from this research

Good fit: Ideal candidates for this research are individuals diagnosed with PTSD who also experience psychotic symptoms.

Not a fit: Patients without PTSD or those who do not experience psychotic symptoms may not benefit from this research.

Why it matters

Potential benefit: If successful, this research could lead to more effective and safer treatments for patients suffering from PTSD and comorbid psychosis.

How similar studies have performed: Previous studies have shown promise in using orexin receptor antagonists for treating stress-related conditions, suggesting potential for success in this novel approach.

Where this research is happening

SAN ANTONIO, UNITED STATES

Researchers

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page below.

View on NIH RePORTER →

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.