| Recruiting | Transcranial Magnetic Stimulation in Veterans With PTSD PTSD - Post Traumatic Stress Disorder | N/A | 2026-01-15 |
| Recruiting | Glecaprevir/Pibrentasvir for Post-traumatic Stress Disorder PTSD | Phase 2 / Phase 3 | 2023-12-18 |
| Recruiting | Replacing Invasive Cystoscopy With Urine Testing for Non-muscle Invasive Bladder Cancer Surveillance Non-muscle-invasive Bladder Cancer | Phase 2 | 2023-11-17 |
| Completed | Suicide Prevention Program for Veterans Discharged From Community Care Settings Suicide Prevention | N/A | 2023-10-01 |
| Completed | Glecaprevir/Pibrentasvir for the Treatment of PTSD PTSD | Phase 2 / Phase 3 | 2023-04-01 |
| Withdrawn | Investigational TMS Treatment for Depression Depression, Treatment Resistant Depression | N/A | 2021-09-01 |
| Completed | Suicide Prevention in Rural Veterans During High-risk Care Transition Scenarios Suicidal and Self-injurious Behavior | N/A | 2019-10-01 |
| Active Not Recruiting | Cold Snare Endoscopic Mucosal Resection Trial Colonic Polyp, Colonoscopy, Complication | N/A | 2019-10-01 |
| Completed | Cranial Electrotherapy Stimulation in the Treatment of Posttraumatic Stress Disorder PTSD, Post Traumatic Stress Disorder | N/A | 2018-10-18 |
| Recruiting | Endoscopic Resection of Large Colorectal Polyps: An Observational Cohort Study Colonic Polyp, Colonoscopy, Complication | — | 2017-11-01 |
| Completed | Water Immersion and Polyp Detection: A Randomized Controlled Trial Adenoma, Colonic Neoplasms | N/A | 2017-03-01 |
| Completed | Safety of Endoscopic Resection of Large Colorectal Polyps: A Randomized Trial. Colon Polyps | N/A | 2013-04-01 |
| Completed | Does Cap Assisted Colonoscopy Improve Detection of Adenomatous Polyps? (CAP Trial) Adenomatous Polyps | N/A | 2010-12-01 |
| Unknown | Treatment of Claudication With a Peristaltic Pulse Pneumatic Device Intermittent Claudication | Phase 2 | 2009-11-01 |
| Completed | Testing the Effect of a Caution for Drugs Approved on Surrogate Outcomes Alone Risk Communication | N/A | 2009-08-01 |
| Completed | Testing Numeric Formats for Presenting Data About Treatment Benefits and Harms Risk Communication | N/A | 2009-08-01 |
| Completed | Testing the Effect of a Warning About New Drugs Risk Communication | N/A | 2009-08-01 |
| Unknown | Testing the Effect of Press Guides on Health Journalists Medical Reporting | N/A | 2009-06-01 |
| Unknown | Decision Aid in Veterans With Posttraumatic Stress Disorder Posttraumatic Stress Disorder | N/A | 2009-06-01 |
| Completed | Complete Histologic Resection of Adenomatous Polyps? Adenomatous Polyps | — | 2008-05-01 |
| Completed | The Drug Facts Box: Helping Consumers Understand Drugs for Risk Reduction Healthy | Phase 3 | 2006-10-01 |
| Unknown | Transcranial Magnetic Stimulation for Post-Traumatic Stress Disorder Post-Traumatic Stress Disorders | Phase 4 | 2004-03-01 |
| Completed | Initiation of Allopurinol at First Medical Contact for Acute Attacks of Gout Gout, Gout Acute | Phase 4 | 1998-01-01 |
| Unknown | Drug Facts Page or a Short Drug Summary in Helping Patients and Doctors Understand Medical Information Health Status Unknown | N/A | — |