Breathing problems after deployment to Iraq or Afghanistan

Post-Deployment Respiratory Syndrome in Veterans of Iraq and Afghanistan

NIH-funded research Veterans Health Administration · NIH-11110291

This project looks at why some Iraq and Afghanistan veterans have long-term breathing problems and seeks easier, less risky ways to diagnose them.

Quick facts

Grant typeNIH-funded research
Study typeNIH-funded research
Funding institutionVeterans Health Administration NIH-funded
Lab location1 site (Nashville, United States)
Project IDNIH-11110291 on NIH RePORTER

What this research studies

If I join, researchers will follow veterans who developed unexplained shortness of breath after deployment to Iraq or Afghanistan and collect clinical information and lung test results over time. They will review lung tissue from biopsies to look for patterns of immune activity and signs of constrictive bronchiolitis and compare those findings with veterans' reported exposures during deployment. The team will use imaging, breathing tests, and tissue analyses to try to link specific inhalational exposures to the lung changes seen on biopsy. The goal is to learn how the condition evolves and whether non‑surgical tests can be developed to reduce the need for risky lung biopsies.

Who could benefit from this research

Good fit: Ideal candidates are U.S. veterans who deployed to Iraq or Afghanistan and have unexplained exertional shortness of breath or other persistent respiratory symptoms despite prior evaluations.

Not a fit: Patients whose breathing problems are already explained by a clear diagnosis such as well‑controlled asthma, heart failure, or other non‑deployment causes may not benefit from this work.

Why it matters

Potential benefit: If successful, this work could lead to safer, non‑invasive ways to diagnose deployment‑related lung disease and clearer guidance on exposures that cause lasting harm.

How similar studies have performed: A prior case series found constrictive bronchiolitis on surgical biopsy in many affected veterans, but there has been no large follow‑up or validated non‑invasive diagnostic test yet.

Where this research is happening

Nashville, 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.
Last reviewed 2026-06-13 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.