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Treatment of Exercise-Induced Pulmonary Vascular Dysfunction After Pulmonary Thromboendarterectomy or Balloon Pulmonary Angioplasty

Treatment of Exercise-Induced Pulmonary Vascular Dysfunction in Symptomatic Patients After Pulmonary Thromboendarterectomy

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03409588
Enrollment
10
Registered
2018-01-24
Start date
2018-06-13
Completion date
2026-01-26
Last updated
2026-02-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Chronic Thromboembolic Disease (CTED), Exercise Intolerance Post PEA Surgery

Keywords

Chronic Thromboembolic Disease, CTED, Treatment Post PEA surgery

Brief summary

This is an open label study of Riociguat in patients with continued exercise intolerance at least 6 months following pulmonary endarterectomy (PEA).

Interventions

DRUGAdempas

After obtaining baseline data, patients will be placed on oral riociguat at a dose of 0.5 mg TID which will be up titrated over two months to a maximum dose of 2.5 mg TID or maximum tolerated dose. After 3 months from onset of riociguat initiation, the University of California San Diego (UCSD) shortness of breath score, 6 Minute Walk Test (6MWD), and resting/exercise Right Heart Catheterization (RHC) will be repeated.

Sponsors

University of Colorado, Denver
Lead SponsorOTHER
Bayer
CollaboratorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 100 Years
Healthy volunteers
No

Inclusion criteria

* Adult patients who underwent PTE or BPA for Chronic thromboembolic pulmonary hypertension (CTEPH) at least six months prior to screening and report ongoing subjective exercise limitation, * able to give consent * able to perform a exercise protocol

Exclusion criteria

* Patients with known Residual Pulmonary Hypertension (RPH) by RHC following PTE for CTEPH * ongoing PAH-specific vasodilator therapy * known contraindication to riociguat * a physical limitation to completing an exercise protocol

Design outcomes

Primary

MeasureTime frameDescription
Change in mean pulmonary arterial pressureBaseline and 3 monthsMeasurements include mPAP (mean pulmonary arterial pressure) measured by right heart catheterization (RHC)
Change in cardiac outputBaseline and 3 monthsMeasurements include CO (cardiac output) mPAP/CO slope measured by right heart catheterization (RHC)
Change in Pulmonary artery complianceBaseline and 3 monthsMeasurements include Pulmonary artery compliance measured by right heart catheterization (RHC)

Secondary

MeasureTime frameDescription
Change in 6 minute walk testBaseline and 3 monthsMeasurements include change in 6 minute walk test (6 MWT) following 3 months of study drug
Change in New York Heart Association (NYHA) functional classBaseline and 3 monthsMeasurements include Change in New York Heart Association (NYHA) functional class following 3 months of study drug
Change in the University of California San Diego (UCSD) shortness of Breath ScoreBaseline and 3 monthsMeasurements include: Change in the University of California San Diego (UCSD) shortness of Breath Score following 3 months of study drug

Countries

United States

Contacts

PRINCIPAL_INVESTIGATORTodd Bull, MD

University of Colorado, Denver

PRINCIPAL_INVESTIGATORPeter Sottile, MD

University of Colorado, Denver

PRINCIPAL_INVESTIGATORWilliam Cornwell, MD

University of Colorado, Denver

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 6, 2026