NCT05629052

Brief Summary

The goal of this observational patient registry is to learn how expert centers treat patients with chronic thromboembolic pulmonary hypertension (CTEPH). CTEPH is a condition in which blood clots block the blood vessels in the lungs. There are currently three treatment options for patients with CTEPH:

  • surgery to remove blood clots from large vessels in the lungs (pulmonary endarterectomy (PEA))
  • the use of a small balloon to unblock smaller blood vessels (balloon pulmonary angioplasty (BPA))
  • drugs Patients can also receive a combination of these treatments. The main question this registry aims to answer are:
  • How many patients receive a given kind of treatment?
  • How do expert centers combine the different treatments?
  • Are patients doing better after they receive a given kind of treatment?
  • How many patients are alive 1, 3 and 5 years after they receive a given kind of treatment? Participants will receive the same treatments that they would receive if they did not participate in the study. During the study, patients will visit their doctors as they would do normally. The doctors will collect information on the patients' health and enter it into the study database. The follow-up time will be at least 3 years for all patients.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
1,000

participants targeted

Target at P75+ for all trials

Timeline
24mo left

Started Apr 2023

Longer than P75 for all trials

Geographic Reach
20 countries

25 active sites

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress62%
Apr 2023Apr 2028

First Submitted

Initial submission to the registry

November 17, 2022

Completed
12 days until next milestone

First Posted

Study publicly available on registry

November 29, 2022

Completed
4 months until next milestone

Study Start

First participant enrolled

April 12, 2023

Completed
5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2028

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 1, 2028

Last Updated

May 8, 2025

Status Verified

May 1, 2025

Enrollment Period

5 years

First QC Date

November 17, 2022

Last Update Submit

May 5, 2025

Conditions

Keywords

Chronic thromboembolic pulmonary hypertensionCTEPHPulmonary endarterectomyPEABalloon pulmonary angioplastyBPAMultimodal treatment

Outcome Measures

Primary Outcomes (2)

  • Utilization and combination of treatment modalities

    Proportion of patients undergoing a certain type of treatment modality, or a certain combination of modalities

    Min. 3 years

  • 3-year survival

    Proportion of patients alive 3 years after the last intervention recorded in the registry, or after start of medical treatment for patients not undergoing any interventional treatment

    3 years after last intervention

Secondary Outcomes (7)

  • Complications of treatment interventions (per patient)

    Min. 3 years

  • Complications of treatment interventions (per BPA session)

    Min. 3 years

  • 1-year survival

    1 year after last intervention

  • 5-year survival

    5 year after last intervention

  • Changes in PH-specific medication

    Min. 3 years

  • +2 more secondary outcomes

Other Outcomes (4)

  • Number of unplanned hospitalizations

    Min. 3 years

  • Timing of unplanned hospitalizations

    Min. 3 years

  • Frequency of QoL assessment

    Min. 3 years

  • +1 more other outcomes

Interventions

Surgical removal of a chronic clot from the pulmonary artery

Also known as: PEA, Pulmonary thromboendarterectomy (PTE), PTE

Catheter-based intervention to dilate occluded pulmonary vessels through the insertion and inflation of a small balloon

Also known as: BPA

Treatment with any PH-specific medication, i.e. endothelin receptor antagonists, phosphodiesterase type 5 inhibitors, soluble guanylate cyclase stimulators, drugs acting on the prostanoid pathway and prostaglandin I2 receptor agonists

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Patients suffering from CTEPH or CTEPD without PH who are newly referred to an expert center and who meet all of the inclusion criteria and none of the exclusion criteria

You may qualify if:

  • Newly referred patient with CTEPH or chronic thromboembolic pulmonary disease (CTEPD) without PH according to the following criteria:
  • Mean pulmonary arterial pressure (mPAP) \> 20 mmHg at rest with pulmonary vascular resistance (PVR) \> 2 Wood units (WU); or if mPAP ≤ 20 mmHg or PVR ≤ 2 WU at rest, have exercise limitations from CTEPD without PH
  • Abnormal ventilation perfusion scan, pulmonary angiogram, computer tomographic pulmonary angiogram, or magnetic resonance pulmonary angiogram confirming CTEPD as recommended by standard guidelines
  • Treatment with anticoagulation for ≥ 3 months before diagnosis of CTEPH or CTEPD without PH
  • Naïve to interventional treatment (both PEA and BPA)
  • Pre-treatment with PH-specific medication for ≤ 12 months, or no medical pre-treatment, at enrollment
  • Willing and able to provide informed consent in order to participate in the study (informed consent signed)
  • Age ≥ 18 years
  • CTEPH-specific treatment must be modified or initiated at the participating site

You may not qualify if:

  • Main cause of PH other than CTEPH
  • Participating in an interventional clinical trial at enrollment

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (25)

University of California San Diego

San Diego, California, 92037, United States

Location

Northwestern University

Evanston, Illinois, 60208, United States

Location

Duke University

Durham, North Carolina, 27705, United States

Location

UT Southwestern

Dallas, Texas, 75390, United States

Location

Hospital Universitario Fundación Favaloro

Buenos Aires, C1093AAS, Argentina

Location

University Hospital Vienna

Vienna, 1090, Austria

Location

University Hospitals Leuven

Leuven, 3000, Belgium

Location

Santa Casa

Porto Alegre, RS 90035-074, Brazil

Location

Toronto General Hospital

Toronto, Ontario, M5G 2C4, Canada

Location

China-Japan Friendship Hospital

Beijing, 100020, China

Location

Shaio Clinic Foundation

Bogotá, 111121, Colombia

Location

General University Hospital

Prague, 12808, Czechia

Location

Aarhus University Hospital

Aarhus, 8200, Denmark

Location

Kerckhoff Clinic, Department of Thoracic Surgery

Bad Nauheim, 61231, Germany

Location

Narayana Institute of Cardiac Science

Bangalore, 560099, India

Location

University of Bologna

Bologna, 40126, Italy

Location

Okayama Medical Center

Okayama, 701-1192, Japan

Location

National Cerebral and Cardiovascular Center

Osaka, 564-8565, Japan

Location

National Heart Institute

Mexico City, 14080, Mexico

Location

Department of Cardiac and Vascular Diseases, John Paul II Hospital

Krakow, 31-202, Poland

Location

Department of Pulmonary Circulation, Thromboembolic Diseases and Cardiology, European Health Center Otwock

Otwock, 05-400, Poland

Location

National Heart Centre of Singapore

Singapore, 168582, Singapore

Location

Pulmonary Hypertension Unit, Hospital 12 de Octubre

Madrid, 28041, Spain

Location

Marmara University School of Medicine

Istanbul, 34899, Turkey (Türkiye)

Location

Royal Papworth Hospital

Cambridge, CB2 0AY, United Kingdom

Location

Related Links

Study Officials

  • Nick H Kim, MD

    University of California, San Diego

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Target Duration
3 Years
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 17, 2022

First Posted

November 29, 2022

Study Start

April 12, 2023

Primary Completion (Estimated)

April 1, 2028

Study Completion (Estimated)

April 1, 2028

Last Updated

May 8, 2025

Record last verified: 2025-05

Locations