Clinical trial Recruiting at 1 site Observational Ages 18 and up

Identifying a proteomic pattern for diagnosing chronic thromboembolic pulmonary hypertension

Official title: Proteomic Pattern Associated With the Diagnosis of Chronic Thromboembolic Pulmonary Hypertension : PROTEO-CTEPH Study.

Run by Centre Hospitalier Universitaire de Saint Etienne · NCT05340023 · Data updated 2026-11-12

This study is trying to find a specific pattern in blood proteins to help doctors better diagnose chronic thromboembolic pulmonary hypertension in patients who have symptoms like shortness of breath.

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment120 (estimated)
SponsorCentre Hospitalier Universitaire de Saint Etienne
Academic / other
Locations1 site (Saint-Etienne)
StatusRecruiting
StartedNovember 9, 2022
Main results expectedJune 2026
Study endsMay 2027
Registry record updatedNovember 24, 2025
Trial IDNCT05340023 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include patients with suspected CTEPH who exhibit symptoms and have undergone relevant imaging studies.

Probably not a fit

Patients with a normal perfusion lung scan or those under legal guardianship may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study aims to identify a specific proteomic pattern in patients suspected of having Chronic Thromboembolic Pulmonary Hypertension (CTEPH). Patients with symptoms such as persistent dyspnea and perfusion defects will undergo blood sampling to analyze their proteomic profiles. The study seeks to improve diagnostic accuracy for CTEPH, which is often misdiagnosed due to limitations in current imaging techniques like transthoracic echocardiography. By establishing a reliable proteomic signature, the study hopes to enhance patient evaluation and management.

Why it matters

Potential benefit: If successful, this study could lead to more accurate and timely diagnoses of CTEPH, improving patient outcomes.

How similar studies have gone: While the approach of using proteomic patterns for diagnosis is innovative, similar studies have shown promise in other conditions, suggesting potential for success.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patient with a suspicion of Chronic thromboembolic pulmonary hypertension (CTEPH) with a combination of a perfusion lung scan and transthoracic perfusion scan and transthoracic echocardiography compatible with the diagnosis (according to French recommendations)
* Patients who require a right heart catheterization.
* Patient affiliated or entitled to a social security plan
* Patient having received informed information about the study informed about the study

Exclusion Criteria:

* Patient with a normal perfusion lung scan
* Person under legal guardianship

Where it's running

  • CHU de SAINT-ETIENNE
    Saint-Etienne, France
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.