Could a simple blood test catch lung hypertension early?

NCT ID NCT04193046

First seen Jun 26, 2026 · Last updated Jun 26, 2026 · Updated 1 time

Summary

This completed study looked for specific molecules in the blood (called microRNAs) that could help detect pulmonary hypertension (PH) early. Researchers analyzed blood samples from 907 participants who had or were scheduled for a right heart catheterization, the standard diagnostic test. The goal was to see if a blood test could identify PH as accurately as current methods like echocardiograms.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

What this could lead to

If successful, this could lead to a simple blood test for early detection of pulmonary hypertension, allowing for earlier treatment.

What could go wrong

This is an early-phase study focused on identifying biomarkers, not testing a treatment. The biomarkers may not prove accurate enough for widespread use.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

pulmonary hypertension

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Ascension St. Vincent's Lung Institute

    Jacksonville, Florida, 32204, United States

  • CE 'Dnipropetrovsk Regional Clinical Center of Cardiology and Cardiosurgery'

    Dnipro, 49070, Ukraine

  • CHU de Brest - Hopital de la Cavale Blanche

    Brest, 29200, France

  • CHU de Montpellier - Arnaud de Villeneuve

    Montpellier, 34295, France

  • CNE 'Cherkasy Regional Cardiological Center of Cherkasy Regional Council'

    Cherkasy, 18009, Ukraine

  • Europejskie Centrum Zdrowia Otwock Sp z o o

    Otwock, 05 400, Poland

  • Hammersmith Hospital

    London, W12 0HS, United Kingdom

  • Hopital Larrey CHU de Toulouse

    Toulouse, 31059, France

  • Hopital de Bicetre

    Le Kremlin-Bicêtre, 94270, France

  • Hosp Clinic de Barcelona

    Barcelona, 8036, Spain

  • Hosp Clinico Univ de Salamanca

    Salamanca, 37008, Spain

  • Hosp Univ Vall D Hebron

    Barcelona, 8035, Spain

  • Hosp. Univ. 12 de Octubre

    Madrid, 28041, Spain

  • Hosp. Univ. Marques de Valdecilla

    Santander, 39008, Spain

  • Hosp. Virgen de La Salud

    Toledo, 45004, Spain

  • Hôpital Cardiologique - Chru Lille

    Lille, 59037, France

  • Icahn School of Medicine at Mount Sinai

    New York, New York, 10029, United States

  • LSU Health Sciences Center New Orleans

    New Orleans, Louisiana, 70112, United States

  • Lungenfachklinik Immenhausen

    Immenhaus, 34376, Germany

  • Mayo Clinic

    Jacksonville, Florida, 32224, United States

  • Mayo Clinic

    Rochester, Minnesota, 55905, United States

  • National Waiting Times Centre Board Golden Jubilee National Hospital

    Glasgow, G81 4DY, United Kingdom

  • Norton Pulmonary Specialists

    Louisville, Kentucky, 40202, United States

  • Pulmonary Associates Of Richmond

    Richmond, Virginia, 23230, United States

  • Pulmonary Health Physicians, PC

    Liverpool, New York, 13088, United States

  • Royal Free Hospital

    London, NW3 2QG, United Kingdom

  • Royal United Hospital

    Bath, BA1 3NG, United Kingdom

  • SI 'National Institute of Phtisiology and Pulmonology n.a. F.G. Yanovsky of NAMS of Ukraine'

    Kyiv, 03038, Ukraine

  • SI National Scientific Center Institute of Cardiology of M.D. Strazhesko of NAMS of Ukraine

    Kyiv, 02000, Ukraine

  • Samodzielny Publiczny Szpital Kliniczny nr 2 PUM

    Szczecin, 70-111, Poland

  • Sheffield Teaching Hospitals NHS Foundation Trust Royal Hallamshire Hospital

    Sheffield, S10 2RX, United Kingdom

  • The Houston Methodist Research Institute

    Houston, Texas, 77030, United States

  • Thoraxklinik Heidelberg

    Heidelberg, 69126, Germany

  • Tufts Medical Center

    Boston, Massachusetts, 02111-1552, United States

  • ULB Erasme Ziekenhuis

    Brussels, 1070, Belgium

  • UT Southwestern Medical Center

    Dallas, Texas, 75390-8550, United States

  • UZ Leuven Gasthuisberg

    Leuven, 3000, Belgium

  • Universitaetsklinikum Giessen

    Giessen, 35392, Germany

  • Universitatsklinikum Bonn

    Bonn, 53105, Germany

  • Universitatsklinikum Schleswig Holstein

    Lübeck, 23538, Germany

  • University Of Colorado Cardiac And Vascular Center

    Aurora, Colorado, 80045-2548, United States

  • University Of Iowa - Hospitals & Clinics

    Iowa City, Iowa, 52242, United States

  • University of Cincinnati

    Cincinnati, Ohio, 45267, United States

  • University of Nebraska Medical Center

    Omaha, Nebraska, 68198-5990, United States

  • University of Southern California

    Los Angeles, California, 90033, United States

  • Universitätsklinikum Carl Gustav Carus Medizinische Klinik und Poliklinik 1-Pneumologie

    Dresden, 01307, Germany

  • Universitätsklinikum Jena Klinik für Innere Medizin I

    Jena, 07747, Germany

  • VUMC Amsterdam

    Amsterdam, 1007 MB, Netherlands

  • Wojewodzki Szpital Specjalistyczny im Stefana Kardynala Wyszynskiego

    Lublin, 20 718, Poland