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Updated May 2026 · ClinicalTrials.gov

RECRUITINGPhase 2INTERVENTIONAL

Repurposing Valsartan May Protect Against Pulmonary Hypertension

Repurposing Valsartan May Protect Against Pulmonary Hypertension (NCT06053580) is a Phase 2 interventional studying Pulmonary Arterial Hypertension and Right Heart Failure, sponsored by University of Washington. RECRUITING as of the most recent ClinicalTrials.gov update. Talk to your doctor before contacting the trial site.

Important: This information is not medical advice. Talk to your doctor about whether a clinical trial is right for you.

About This Trial

This is a Phase 2, single-center, randomized placebo controlled trial of valsartan (an angiotensin receptor blocker) in adults with pulmonary arterial hypertension. The study will evaluate the safety and clinical efficacy of a 24-week course of valsartan.

What Stage of Research Is This?

Phase 2 trials evaluate whether a treatment actually works against Pulmonary Arterial Hypertension and continue monitoring side effects. Phase 2 enrolls larger groups (typically 100–300 patients) and produces the first real efficacy signal. A successful Phase 2 readout is what unlocks the much larger Phase 3 confirmatory trials needed for FDA approval.

This trial is currently recruiting participants. The sponsor has registered the study with ClinicalTrials.gov as actively enrolling, which means new applicants who meet the eligibility criteria can be considered for screening. Trial status can change between updates — confirm current recruiting status with the study contact before traveling for a screening visit.

Target enrollment of 60 participants puts this in the typical range for a Phase 2-style efficacy study or a moderate Phase 3 trial in a focused Pulmonary Arterial Hypertension subpopulation. At this scale, the study has enough statistical power to detect a clear treatment effect but is not the largest cohort in the field.

Who May Be Eligible (Plain English)

Who May Qualify: 1. Male or female, age 18 to 80 2. WHO Group 1 Pulmonary Arterial Hypertension 3. NYHA Functional Class II, III, or IV at screening (Appendix 2 for Functional Class Decision Aid) 4. Right heart catheterization within five years demonstrating a mean pulmonary arterial pressure of ≥25 mmHg, occlusion pressure of ≤15 mmHg, and resistance ≥ 3 wood units 5. Participants with a right heart catheterization within five years demonstrating a mean pulmonary arterial pressure of ≥ 25 mmHg and occlusion pressure of 15 - 20 mmHg will be considered for inclusion if the pulmonary vascular resistance ≥ 9 wood units and they are being treated with pulmonary arterial hypertension specific therapy 6. Able to walk with/without a walking aid for a distance of at least 50 meters Who Should NOT Join This Trial: 1. Pregnant or lactating 2. Non-group 1 pulmonary hypertension or veno-occlusive disease 3. History of interstitial lung disease, unless subject has collagen vascular disease and has pulmonary function testing conducted within 12 months demonstrating a total lung capacity or vital capacity of ≥ 60 % 4. Has received or will receive an investigational drug, device, or study within 30 days or during the course of study 5. ACE-inhibitor, ARB or ARNI use within 30 days of randomization. 6. Left sided myocardial disease as evidenced by left ventricular ejection fraction \< 40% 7. Any other clinically significant illness or abnormal laboratory values (measured during the Screening period) that, in the opinion of the Investigator, might put the subject at risk of harm during the study or might adversely affect the interpretation of the study data 8. Anticipated survival less than 1 year due to concomitant disease 9. Allergy or angioedema with ACE-inhibitor use 10. Potassium \>5mEq/L or sCr \>2mg/dL at screening 11. SBP \<90mmHg at screening Always talk to your doctor about whether this trial is right for you.

These are translations of the protocol\'s inclusion and exclusion criteria, simplified for patients and caregivers. The original clinical text appears below. Eligibility is ultimately confirmed by the trial site\'s screening process — this summary is a starting point for a conversation with your doctor, not a final determination.

Original Eligibility Criteria

View original clinical language
Inclusion Criteria: 1. Male or female, age 18 to 80 2. WHO Group 1 Pulmonary Arterial Hypertension 3. NYHA Functional Class II, III, or IV at screening (Appendix 2 for Functional Class Decision Aid) 4. Right heart catheterization within five years demonstrating a mean pulmonary arterial pressure of ≥25 mmHg, occlusion pressure of ≤15 mmHg, and resistance ≥ 3 wood units 5. Participants with a right heart catheterization within five years demonstrating a mean pulmonary arterial pressure of ≥ 25 mmHg and occlusion pressure of 15 - 20 mmHg will be considered for inclusion if the pulmonary vascular resistance ≥ 9 wood units and they are being treated with pulmonary arterial hypertension specific therapy 6. Able to walk with/without a walking aid for a distance of at least 50 meters Exclusion Criteria: 1. Pregnant or lactating 2. Non-group 1 pulmonary hypertension or veno-occlusive disease 3. History of interstitial lung disease, unless subject has collagen vascular disease and has pulmonary function testing conducted within 12 months demonstrating a total lung capacity or vital capacity of ≥ 60 % 4. Has received or will receive an investigational drug, device, or study within 30 days or during the course of study 5. ACE-inhibitor, ARB or ARNI use within 30 days of randomization. 6. Left sided myocardial disease as evidenced by left ventricular ejection fraction \< 40% 7. Any other clinically significant illness or abnormal laboratory values (measured during the Screening period) that, in the opinion of the Investigator, might put the subject at risk of harm during the study or might adversely affect the interpretation of the study data 8. Anticipated survival less than 1 year due to concomitant disease 9. Allergy or angioedema with ACE-inhibitor use 10. Potassium \>5mEq/L or sCr \>2mg/dL at screening 11. SBP \<90mmHg at screening

Treatments Being Tested

DRUG

Valsartan 40 mg

Valsartan 40mg twice daily for 24 weeks.

DRUG

Placebo

Placebo twice daily for 24 weeks.

Locations (1)

Trial sites listed on ClinicalTrials.gov for this study. Site activation status can vary — confirm with the specific site before traveling for a screening visit.

University of Washington Medical Center
Seattle, Washington, United States

How to Talk to Your Doctor About This Trial

Bring the printable summary of this trial — including the NCT ID (NCT06053580), the sponsor (University of Washington), and the key eligibility criteria — to your next appointment. Your doctor can review the inclusion and exclusion criteria against your medical history, lab values, and current treatments to assess whether you are likely to qualify. They can also help you weigh whether trial participation makes sense alongside your existing care plan.

Useful questions to walk through together: What does the trial protocol require beyond standard care? How long is the active treatment phase, and how long is follow-up? Are there study visits at sites I can reach? Who pays for the trial-specific procedures, and who pays for standard-of-care portions? See our 25 questions to ask about clinical trials guide for a more complete checklist.

Authoritative Sources

The official record for this trial lives on ClinicalTrials.gov — the federal registry maintained by the National Library of Medicine at NIH. For background on how this trial fits into the FDA approval pathway, see the FDA drug approval process. For oncology-specific guidance for patients considering trials, the National Cancer Institute publishes patient-oriented overviews. International trial registries are aggregated by the WHO ICTRP.

Frequently Asked Questions

What is the NCT06053580 clinical trial studying?

This is a Phase 2, single-center, randomized placebo controlled trial of valsartan (an angiotensin receptor blocker) in adults with pulmonary arterial hypertension. The study will evaluate the safety and clinical efficacy of a 24-week course of valsartan. The full protocol is registered on ClinicalTrials.gov and includes the primary outcome measures, eligibility criteria, and study endpoints.

Who can participate in NCT06053580?

Eligibility for this trial depends on the specific inclusion and exclusion criteria set by the sponsor. The plain-English summary above translates the most important criteria into accessible language; the official clinical text is preserved in the collapsible section underneath. Whether you fit any specific trial is a medical decision your doctor needs to confirm — bring the trial information to your treating physician for a full review against your medical history.

How do I contact the trial site for NCT06053580?

Contact information registered with ClinicalTrials.gov is shown in the sidebar of this page. Before reaching out, confirm with your treating physician that this trial is appropriate for your situation. The trial site will then walk you through the screening process to determine final eligibility.

Is participating in a clinical trial safe?

Clinical trials in the United States are regulated by the FDA and overseen by Institutional Review Boards (IRBs) that review the protocol for safety. Risk varies by trial — Phase 1 studies test new treatments in humans for the first time, while Phase 3 trials use treatments that have already passed earlier safety screening. The informed consent document for any specific trial details the known risks and what to expect. Discuss those risks with your physician before deciding whether to participate.

Where can I verify the data on this page?

Every detail on this page comes directly from the ClinicalTrials.gov API. Click "View on ClinicalTrials.gov" in the sidebar to see the official, unmodified record. The federal record is always authoritative; this page is a structured presentation with a plain-English eligibility translation. For background on how clinical trials are regulated, see the FDA drug approval process documentation.

How This Page Is Built

Every field on this page is pulled directly from the ClinicalTrials.gov API v2 — no estimates, no proxies. The plain-English eligibility translation is generated from the original protocol text and reviewed for fidelity to the underlying clinical criteria. The original clinical text remains visible in the collapsible section above so users and clinicians can verify the translation. Read the full methodology for the data pipeline and known limitations.

Source: ClinicalTrials.gov API v2 record for NCT06053580. Maintained by the National Library of Medicine at NIH. Public domain. Cite as: "TrialFinderData. NCT06053580. Data: ClinicalTrials.gov."

Medical disclaimer: This page is informational, not medical advice. Talk to your doctor about whether a clinical trial is right for you.

Last updated 2026-05-08 · Data from ClinicalTrials.gov.