Pulmonary Hypertension (PH) Biorepository for Translational Research

September 16, 2026 updated by: National Institutes of Health Clinical Center (CC)

Background:

Pulmonary hypertension (PH) is high blood pressure in the blood vessels of the lungs. It can lead to heart failure and death if not treated. Researchers want to create a repository of blood samples and health information collected from people with PH. They hope to use this information to find better ways to diagnose and treat PH.

Objective:

To collect blood samples and health information from people suspected of or diagnosed with PH.

Eligibility:

People aged 18 years and older who have or may have PH.

Design:

Researchers will collect information from participants medical records.

Participants will have blood drawn from a vein. About 3 tablespoons will be collected during the study visit. The visit will last about 1 hour.

Participants may choose to provide new blood samples at follow-up visits. Updated medical information may also be collected.

Participants may continue to participate as long as the study is ongoing. Participants may opt out of providing new blood samples but remain in the study.

All study samples will be stored at the National Institutes of Health. Health information will be stored in secure databases.

Study Overview

Status

Not yet recruiting

Conditions

Detailed Description

Study Description:

This study aims to establish a biorepository based on the World Symposium Pulmonary Hypertension (PH) Groups 1-5. In the future, IRB approved protocols may use these blood samples to discover novel, biologically relevant, non-invasive PH biomarkers. In combination with clinical data these potential biomarkers will be used to distinguish PH groups, elucidate underlying molecular phenotypes, predict clinically relevant outcomes, as well as discriminate healthy (healthy subjects will not be enrolled under this protocol) from PH disease states, and differentiate patients with PH from patients without PH. To this end, multimodal genomic, metabolomic, and proteomic assays will eventually be developed and used.

Objectives:

Primary:

Develop a multi-center biorepository of patients suspected of or diagnosed with PH Group 1-5.

Secondary:

Collect the specific data attributes that may be used in the future to determine whether multimodal genomic, metabolomic or proteomic biomarkers, in combination with clinical data, can:

-Elucidate molecular phenotypes that distinguish between patients across PH groups

Predict clinically relevant outcomes (i.e., disease severity, disease progression, response to therapy, transplant free survival).

Study Type

Observational

Enrollment (Estimated)

1000

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

  • United States
    • Maryland
      • Baltimore, Maryland, United States, 21201
      • Bethesda, Maryland, United States, 20892
        • National Institutes of Health Clinical Center
        • Contact:
          • NIH Clinical Center Office of Patient Recruitment (OPR)
          • Phone Number: TTY dial 711 800-411-1222
          • Email: ccopr@nih.gov
    • Virginia
      • Falls Church, Virginia, United States, 22042
        • Inova Fairfax Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Sampling Method

Probability Sample

Study Population

The study population will consist of adult male and female participants older than 18 years who are suspected of having or have been diagnosed with pulmonary hypertension (PH). Eligible individuals must be able to understand the study requirements and be willing to provide written informed consent by signing and dating the informed consent form prior to participation.

Description

  • INCLUSION CRITERIA:
  • Provision of signed and dated informed consent form
  • Males and females aged >=18 years old
  • Suspected of or diagnosed with PH
  • Able to understand and willing to sign a written informed consent document

EXCLUSION CRITERIA:

Any individual who does not meet all inclusion criteria or is deemed by the local investigator not to be a blood draw candidate will be excluded from participating in this study.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Group 1 (suspected of or diagnosed)
Pulmonary Arterial Hypertension, PAH
Group 2 (suspected of or diagnosed)
PH due to left heart disease
Group 3 (suspected of or diagnosed)
PH due to lung diseases and/or hypoxia
Group 4 (suspected of or diagnosed)
PH due to thromboembolic disease
Group 5 (suspected of or diagnosed)
PH with unclear or multifactorial mechanisms

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Develop a multi-center biorepository.
Time Frame: 10 years
Develop a multi-center biorepository of patients suspected of or diagnosed with PH Group 1-5.
10 years

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Collect the specific data attributes in combination with clinical data to be used in the future to determine multimodal genomic, metabolomic or proteomic biomarkers.
Time Frame: 10 years
This research may predict clinically relevant outcomes. Elucidate molecular phenotypes that distinguish between patients across PH groups
10 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

National Institutes of Health Clinical Center (CC)

Investigators

  • Principal Investigator: Michael A Solomon, M.D., National Institutes of Health Clinical Center (CC)

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

September 22, 2026

Primary Completion (Estimated)

June 1, 2036

Study Completion (Estimated)

June 1, 2036

Study Registration Dates

First Submitted

June 12, 2026

First Submitted That Met QC Criteria

June 12, 2026

First Posted (Actual)

June 15, 2026

Study Record Updates

Last Update Posted (Actual)

September 17, 2026

Last Update Submitted That Met QC Criteria

September 16, 2026

Last Verified

June 22, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 10002634
  • 002634-CC

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

All IPD that underlie results in a publication.

IPD Sharing Time Frame

Within 12 months from publication

IPD Sharing Access Criteria

Published IPD will be shared upon request to the research team.

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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