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Showing 1–24 of 26 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Adempas Clear all
Completed Phase 2 Interventional Results available

Efficacy and Safety of Riociguat in Patients With Systemic Sclerosis

NCT02283762
View directory record Official record
Conditions
Scleroderma, Systemic
Interventions
Riociguat (Adempas, BAY63-2521), Placebo
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years and older
Enrollment
121 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
10
States / cities
Scottsdale, Arizona • Los Angeles, California • Palo Alto, California + 7 more
Source: ClinicalTrials.gov public record
Updated Feb 4, 2020 · Synced Sep 4, 2026, 10:22 PM EDT
Terminated Phase 2 Interventional Results available

Hemodynamic and Echocardiographic Assessment of Riociguat Effects on Myocardial Wall Contractility and Relaxation Kinetics

NCT01065051
View directory record Official record
Conditions
Hypertension, Pulmonary, Ventricular Dysfunction, Left
Interventions
Riociguat (Adempas, BAY63-2521), Placebo
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years and older
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
2
States / cities
Boston, Massachusetts • Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 5, 2014 · Synced Sep 4, 2026, 10:22 PM EDT
Completed Phase 3 Interventional Results available

A Study to Evaluate Efficacy and Safety of Oral BAY63-2521 in Patients With Pulmonary Arterial Hypertension (PAH)

NCT00810693
View directory record Official record
Conditions
Pulmonary Hypertension
Interventions
Riociguat (Adempas, BAY63-2521), Placebo
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years to 80 Years
Enrollment
445 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
18
States / cities
Tucson, Arizona • La Jolla, California • Los Angeles, California + 14 more
Source: ClinicalTrials.gov public record
Updated Nov 21, 2023 · Synced Sep 4, 2026, 10:22 PM EDT
Completed Phase 1 Interventional

Interaction With HIV Antiretroviral Agents

NCT02556268
View directory record Official record
Conditions
HIV-DDI
Interventions
Riociguat (Adempas, BAY 63-2521), ATRIPLA, COMPLERA, STRIBILD, TRIUMEQ, Antiretroviral protease inhibitor
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years to 65 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016
U.S. locations
2
States / cities
Orlando, Florida • Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 5, 2017 · Synced Sep 4, 2026, 10:22 PM EDT
Not listed Phase 4 Interventional

Riociguat for Sarcoidosis Associated Pulmonary Hypertension

NCT02625558
View directory record Official record
Conditions
Sarcoidosis
Interventions
Riociguat, Placebo
Drug
Lead sponsor
University of Cincinnati
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 8, 2015 · Synced Sep 4, 2026, 10:22 PM EDT
Completed No phase listed Observational Results available

Study of Incidence of Respiratory Tract AEs in Patients Treated With Tyvaso® Compared to Other FDA Approved PAH Therapies

NCT01266265
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
inhaled prostacyclin, prostacyclin, subcutaneous and intravenous prostacyclin, oral ERA, oral PDE5 inhibitors
Drug
Lead sponsor
United Therapeutics
Industry
Eligibility
Not listed
Enrollment
1,333 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
88
States / cities
Birmingham, Alabama • Mobile, Alabama • Phoenix, Arizona + 65 more
Source: ClinicalTrials.gov public record
Updated Feb 16, 2016 · Synced Sep 4, 2026, 10:22 PM EDT
Completed Phase 2 Interventional Results available

Evaluation of the Pharmacodynamic Effect of the Combination of Sildenafil and Riociguat on Blood Pressure and Other Safety Parameters.

NCT01179334
View directory record Official record
Conditions
Pulmonary Hypertension
Interventions
Riociguat (Adempas, BAY63-2521), Placebo, Sildenafil
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years to 75 Years
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
3
States / cities
Aurora, Colorado • Columbus, Ohio • Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Aug 28, 2016 · Synced Sep 4, 2026, 10:22 PM EDT
Completed Phase 3 Interventional

Riociguat Clinical Effects Studied in Patients With Insufficient Treatment Response to Phosphodiesterase-5 Inhibitor

NCT02007629
View directory record Official record
Conditions
Hypertension, Pulmonary
Interventions
Riociguat (Adempas, BAY63-2521)
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years to 75 Years
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
7
States / cities
La Jolla, California • Sacramento, California • Iowa City, Iowa + 4 more
Source: ClinicalTrials.gov public record
Updated Feb 20, 2019 · Synced Sep 4, 2026, 10:22 PM EDT
Withdrawn Phase 2 Interventional

Coronary Vasomotor Response After Riociguat Exposure

NCT01165931
View directory record Official record
Conditions
Coronary Artery Disease
Interventions
Riociguat (BAY63-2521)
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years to 90 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 22, 2013 · Synced Sep 4, 2026, 10:22 PM EDT
Completed Phase 3 Interventional Results available

BAY63-2521:Long-term Extension Study in Patients With Pulmonary Arterial Hypertension

NCT00863681
View directory record Official record
Conditions
Hypertension, Pulmonary
Interventions
Riociguat (BAY63-2521)
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years to 80 Years
Enrollment
396 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2019
U.S. locations
11
States / cities
Los Angeles, California • Sacramento, California • Aurora, Colorado + 7 more
Source: ClinicalTrials.gov public record
Updated Nov 6, 2023 · Synced Sep 4, 2026, 10:22 PM EDT
Terminated Phase 2 Interventional Results available

A Study to Test the Effects of Riociguat in Patients With Pulmonary Hypertension Associated With Left Ventricular Systolic Dysfunction

NCT01065454
View directory record Official record
Conditions
Hypertension, Pulmonary, Ventricular Dysfunction, Left
Interventions
Riociguat (Adempas, BAY63-2521), Placebo
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years to 80 Years
Enrollment
202 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2025
U.S. locations
14
States / cities
Los Angeles, California • San Diego, California • Torrance, California + 11 more
Source: ClinicalTrials.gov public record
Updated Aug 19, 2026 · Synced Sep 4, 2026, 10:22 PM EDT
Terminated Phase 2 Interventional Results available

Efficacy and Safety of Riociguat in Patients With Symptomatic Pulmonary Hypertension (PH) Associated With Idiopathic Interstitial Pneumonias (IIP)

NCT02138825
View directory record Official record
Conditions
Idiopathic Interstitial Pneumonias / Hypertension,Pulmonary
Interventions
Riociguat (Adempas, BAY63-2521), Placebo
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years to 80 Years
Enrollment
147 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
17
States / cities
Los Angeles, California • San Francisco, California • Aurora, Colorado + 14 more
Source: ClinicalTrials.gov public record
Updated Dec 3, 2017 · Synced Sep 4, 2026, 10:22 PM EDT
Completed Phase 4 Interventional Results available

Riociguat rEplacing PDE-5i Therapy evaLuated Against Continued PDE-5i thErapy

NCT02891850
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Riociguat (Adempas, BAY63-2521), Sildenafil, Tadalafil
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years to 75 Years
Enrollment
225 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
17
States / cities
Phoenix, Arizona • Tucson, Arizona • Sacramento, California + 14 more
Source: ClinicalTrials.gov public record
Updated Feb 25, 2021 · Synced Sep 4, 2026, 10:22 PM EDT
Terminated Phase 2 Interventional Results available

Riociguat in Patients With Operable CTEPH Prior to Pulmonary Endarterectomy (PEA Bridging Study)

NCT03273257
View directory record Official record
Conditions
Chronic Thromboembolic Pulmonary Hypertension, CTEPH
Interventions
Riociguat, Placebo, Pulmonary endarterectomy
Drug · Procedure
Lead sponsor
International CTEPH Association
Other
Eligibility
18 Years to 80 Years
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Jun 21, 2021 · Synced Sep 4, 2026, 10:22 PM EDT
Terminated Phase 2 Interventional Results available

Early Signs of Efficacy Study With Riociguat in Adult Homozygous Delta F508 Cystic Fibrosis Patients

NCT02170025
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
Riociguat (Adempas, BAY63-2521), Placebo
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years and older
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
3
States / cities
Birmingham, Alabama • Denver, Colorado • St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Nov 6, 2023 · Synced Sep 4, 2026, 10:22 PM EDT
No Longer Available No phase listed Expanded access

Riociguat in Patients With Chronic Thromboembolic Pulmonary Hypertension (CTEPH)

NCT01784562
View directory record Official record
Conditions
Hypertension, Pulmonary
Interventions
Adempas (Riociguat, BAY63-2521)
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years to 80 Years
U.S. locations
24
States / cities
Tucson, Arizona • La Jolla, California • Los Angeles, California + 20 more
Source: ClinicalTrials.gov public record
Updated Jan 5, 2016 · Synced Sep 4, 2026, 10:22 PM EDT
Terminated Phase 3 Interventional

Effects of Combination Medical Therapy Followed by BPA on Right Ventricular-PA Coupling and Hemodynamics in CTEPH

NCT05140525
View directory record Official record
Conditions
CTEPH
Interventions
Macitentan Tablets, Riociguat, balloon pulmonary angioplasty
Drug · Device
Lead sponsor
Dr Sudarshan Rajagopal
Other
Eligibility
18 Years and older
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 2, 2026 · Synced Sep 4, 2026, 10:22 PM EDT
Completed Phase 3 Interventional Results available

BAY63-2521 - Long-term Extension Study in Patients With Chronic Thromboembolic Pulmonary Hypertension

NCT00910429
View directory record Official record
Conditions
Pulmonary Hypertension
Interventions
Riociguat (Adempas, BAY63-2521)
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years to 80 Years
Enrollment
237 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2019
U.S. locations
8
States / cities
La Jolla, California • Sacramento, California • Iowa City, Iowa + 5 more
Source: ClinicalTrials.gov public record
Updated Nov 6, 2023 · Synced Sep 4, 2026, 10:22 PM EDT
Completed Phase 4 Interventional Results available

Measuring Outcomes In Patients With Pulmonary Arterial Hypertension Not on Active Treatment (MOTION)

NCT02191137
View directory record Official record
Conditions
Hypertension, Pulmonary
Interventions
Riociguat (Adempas, BAY63-2521)
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years to 80 Years
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
58
States / cities
Tucson, Arizona • La Jolla, California • Moreno Valley, California + 51 more
Source: ClinicalTrials.gov public record
Updated Oct 12, 2017 · Synced Sep 4, 2026, 10:22 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Efficacy Study of Riociguat and Its Effects on Exercise Performance and Pulmonary Artery Pressure at High Altitude

NCT02024386
View directory record Official record
Conditions
Hypertension, Pulmonary, Altitude Sickness
Interventions
Riociguat
Drug
Lead sponsor
Richard Moon
Other
Eligibility
18 Years to 40 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 11, 2017 · Synced Sep 4, 2026, 10:22 PM EDT
Completed Phase 2 Interventional

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

NCT03409588
View directory record Official record
Conditions
Chronic Thromboembolic Disease (CTED), Exercise Intolerance Post PEA Surgery
Interventions
Adempas
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 100 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2026
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Feb 4, 2026 · Synced Sep 4, 2026, 10:22 PM EDT
Recruiting Phase 3 Interventional

Trial to Evaluate Parenteral Treprostinil and Riociguat on Right Ventriculo-vascular Coupling and Morphology in Those With Advanced PAH

NCT04062565
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Treprostinil Injectable Product, Riociguat Pill
Drug
Lead sponsor
University of Arizona
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Feb 19, 2025 · Synced Sep 4, 2026, 10:22 PM EDT
Completed Phase 2 Interventional Results available

A Multi-Center Study of Riociguat in Patients With Sickle Cell Diseases

NCT02633397
View directory record Official record
Conditions
Sickle Cell Disease
Interventions
Riociguat, Placebo
Drug
Lead sponsor
Mark Gladwin
Other
Eligibility
18 Years and older
Enrollment
130 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
20
States / cities
Oakland, California • Washington D.C., District of Columbia • Miami, Florida + 17 more
Source: ClinicalTrials.gov public record
Updated Jul 18, 2023 · Synced Sep 4, 2026, 10:22 PM EDT
Completed Phase 2 Interventional Results available

Riociguat in Scleroderma Associated Digital Ulcers

NCT02915835
View directory record Official record
Conditions
Scleroderma, Digital Ulcers
Interventions
Riociguat, Placebo
Drug
Lead sponsor
Dinesh Khanna, MD, MS
Other
Eligibility
18 Years and older
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
5
States / cities
Washington D.C., District of Columbia • Ann Arbor, Michigan • New York, New York + 2 more
Source: ClinicalTrials.gov public record
Updated Sep 23, 2019 · Synced Sep 4, 2026, 10:22 PM EDT