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Pulmonary HypertensionPhase 3PATENT-1NCT00810693

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

A Phase 3 study testing Riociguat (Adempas, BAY63-2521) in people with Pulmonary Hypertension, run by Bayer at 122 sites in 30 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
Search all trials

Trial summary

The aim of the study is to assess the efficacy and safety of different doses of BAY63-2521 given orally for 12 weeks, in patients with symptomatic Pulmonary Arterial Hypertension (PAH). Read more about this study

Who is it for?
Ages 18 to 80 years
Conditions the study is for
Pulmonary Hypertension
What is being tested?
Riociguat (Adempas, BAY63-2521)
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
445 participants
Where
122 sitesin 30 countries
Study dates
17 Dec 2008to 14 May 2012
Phase
Phase 3
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Male and female patients with symptomatic PAH (Idiopathic, Familial, Associated PAH due to connective tissue disease, congenital heart disease, portal hypertension with liver cirrhosis, or due to anorexigen or amphetamine use)
  • Treatment naive patients and patients pre-treated with an Endothelin Antagonist or a Prostacyclinanalogue (except I.V.).

Who cannot join

  • All types of pulmonary hypertension except subtypes of Venice Group I specified in the inclusion criteria, severe COPD (chronic obstructive pulmonary disease), uncontrolled arterial hypertension, left heart failure.

Trial locations and contacts

122 sites in 30 countries.

122 sites in 30 countries

United States18 sites
  • Study site

    Aurora, Colorado, 80045

  • Study site

    Boston, Massachusetts, 02111

  • Study site

    Boston, Massachusetts, 02115

  • Study site

    Cincinnati, Ohio, 45219

  • Study site

    Cleveland, Ohio, 44195

  • Study site

    Columbus, Ohio, 43221

  • Study site

    Dallas, Texas, 75390

  • Study site

    El Paso, Texas, 79902

  • Study site

    Fairfield, Ohio, 45014

  • Study site

    Houston, Texas, 77030

  • Study site

    La Jolla, California, 92037

  • Study site

    Los Angeles, California, 90073

  • Study site

    Louisville, Kentucky, 40202

  • Study site

    New York, New York, 10032

  • Study site

    Omaha, Nebraska, 68131

  • Study site

    Providence, Rhode Island, 02903

  • Study site

    Sacramento, California, 95817

  • Study site

    Tucson, Arizona, 85724

Other trials in United States

Japan15 sites
  • Study site

    Bunkyo-ku, Tokyo, 113-8655

  • Study site

    Hiroshima, 734-8551

  • Study site

    Kanazawa, Ishikawa-ken, 920-8641

  • Study site

    Kobe, Hyōgo, 650-0017

  • Study site

    Mitaka, Tokyo, 181-8611

  • Study site

    Nagoya, Aichi-ken, 467-8602

  • Study site

    Okayama, 701-1192

  • Study site

    Ōta-ku, Tokyo, 143-8541

  • Study site

    Sagamihara, Kanagawa, 252-0375

  • Study site

    Sendai, Miyagi, 980-8574

  • Study site

    Shinjuku-ku, Tokyo, 160-8582

  • Study site

    Tomigusuku, Okinawa, 901-0243

  • Study site

    Toride, Ibaraki, 302-0022

  • Study site

    Tsukuba, Ibaraki, 305-8576

  • Study site

    Yoshida, Fukui, 910-1193

Other trials in Japan

Germany9 sites
  • Study site

    Cologne, North Rhine-Westphalia, 50924

  • Study site

    Dresden, Saxony, 01307

  • Study site

    Giessen, Hesse, 35392

  • Study site

    Greifswald, Mecklenburg-Vorpommern, 17475

  • Study site

    Hanover, Lower Saxony, 30625

  • Study site

    Heidelberg, Baden-Wurttemberg, 69126

  • Study site

    Homburg, Saarland, 66421

  • Study site

    Leipzig, Saxony, 04103

  • Study site

    München, Bavaria, 81377

Other trials in Germany

France8 sites
  • Study site

    Besançon, 25030

  • Study site

    Brest, F-29609

  • Study site

    Grenoble, 38043

  • Study site

    Lille, 59037

  • Study site

    Montpellier, 34059

  • Study site

    Nice, 06200

  • Study site

    Pessac, 33604

  • Study site

    Rouen, 76031

Other trials in France

Australia6 sites
  • Study site

    Auchenflower, Queensland, 4066

  • Study site

    Darlinghurst, New South Wales, 2010

  • Study site

    Herston, Queensland, 4029

  • Royal Hobart Hospital

    Hobart, Tasmania, 7000

  • Study site

    New Lambton Heights, New South Wales, 2305

  • Study site

    Prahran, Victoria, 3181

Other trials in Australia

Mexico6 sites
  • Study site

    Culiacán, Sinaloa, 80020

  • Study site

    Guadalajara, Jalisco, 44280

  • Study site

    Guadalajara, Jalisco, 44670

  • Study site

    Mexico City, 14080

  • Study site

    Monterrey, Nuevo León, 64020

  • Study site

    Querétaro, 38000

Other trials in Mexico

China5 sites
  • Study site

    Beijing, 100020

  • Study site

    Beijing, 100037

  • Study site

    Guangzhou, Guangdong, 510100

  • Study site

    Shanghai, 200032

  • Study site

    Shanghai, 200433

Other trials in China

Italy5 sites
  • Study site

    Milan, Lombardy, 20123

  • Study site

    Pavia, Lombardy, 27100

  • Study site

    Rome, Lazio, 00161

  • Study site

    Trieste, Friuli Venezia Giulia, 34149

  • Study site

    Turin, Piedmont, 10043

Other trials in Italy

Brazil4 sites
  • Study site

    Porto Alegre, Rio Grande do Sul, 90020 090

  • Study site

    Rio de Janeiro, 21941-913

  • Study site

    São Paulo, São Paulo, 04012 180

  • Study site

    São Paulo, São Paulo, 04020-050

Other trials in Brazil

Portugal4 sites
  • Study site

    Coimbra, 3000-075

  • Study site

    Lisbon, 1169-024

  • Study site

    Lisbon, 1649-035

  • Study site

    Porto, 4099-001

Other trials in Portugal

South Korea4 sites
  • Study site

    Seoul, Seoul Teugbyeolsi, 03080

  • Study site

    Seoul, 03722

  • Study site

    Seoul, 05505

  • Study site

    Seoul, 06351

Other trials in South Korea

United Kingdom4 sites
  • Study site

    Cambridge, Cambridgeshire, CB23 3RE

  • Study site

    Clydebank, West Dunbartonshire, G81 4DY

  • Study site

    London, NW3 2QG

  • Study site

    London, W12 0HS

Other trials in United Kingdom

Austria3 sites
  • Study site

    Innsbruck, 6020

  • Study site

    Linz, Upper Austria, 4020

  • Study site

    Vienna, 1090

Other trials in Austria

Canada3 sites
  • Study site

    Calgary, Alberta, T1Y 6J4

  • Study site

    Montreal, Quebec, H3T 1E2

  • Study site

    Toronto, Ontario, M5G 2N2

Other trials in Canada

Spain3 sites
  • Study site

    Barcelona, 08035

  • Study site

    Barcelona, 08036

  • Study site

    Seville, 41013

Other trials in Spain

Sweden3 sites
  • Study site

    Linköping, 581 85

  • Study site

    Lund, 221 85

  • Study site

    Umeå, 901 85

Other trials in Sweden

Taiwan3 sites
  • Study site

    Kaohsiung City, 813414

  • Study site

    Taipei, 100

  • Study site

    Taipei, 11217

Other trials in Taiwan

Turkey (Türkiye)3 sites
  • Study site

    Ankara

  • Study site

    Istanbul, 34098

  • Study site

    Izmir, 35-100

Other trials in Turkey (Türkiye)

Belgium2 sites
  • Study site

    Bruxelles - Brussel, 1070

  • Study site

    Leuven, 3000

Other trials in Belgium

Russia2 sites
  • Study site

    Moscow, 121552

  • Study site

    Saint Petersburg, 197341

Other trials in Russia

Singapore2 sites
  • Study site

    Singapore, 119228

  • Study site

    Singapore, 168752

Other trials in Singapore

Thailand2 sites
  • Study site

    Bangkok, 10330

  • Study site

    Chiang Mai, 50200

Other trials in Thailand

Argentina1 site
  • Study site

    Capital Federal

Other trials in Argentina

Czechia1 site
  • Study site

    Prague, 12808

Other trials in Czechia

Denmark1 site
  • Study site

    Aarhus N, 8200

Other trials in Denmark

Greece1 site
  • Study site

    Chaïdári, 124 62

Other trials in Greece

Israel1 site
  • Study site

    Petah Tikva, 4941492

Other trials in Israel

New Zealand1 site
  • Study site

    Christchurch, 8011

Other trials in New Zealand

Poland1 site
  • Study site

    Otwock, 05-400

Other trials in Poland

Switzerland1 site
  • Study site

    Zurich, 8091

Other trials in Switzerland

About this study

Official title: Randomized, Double-blind, Placebo-controlled, Multi-centre, Multi-national Study to Evaluate the Efficacy and Safety of Oral BAY63-2521 (1 mg, 1.5 mg, 2 mg, or 2.5 mg Tid) in Patients With Symptomatic Pulmonary Arterial Hypertension (PAH)

The aim of the study is to assess the efficacy and safety of different doses of BAY63-2521 given orally for 12 weeks, in patients with symptomatic Pulmonary Arterial Hypertension (PAH).

Being tested
Riociguat (Adempas, BAY63-2521), Placebo
Keywords
Pulmonary arterial hypertension, PH, Stimulator
Medical subject headings
Hypertension, Pulmonary, Pulmonary Arterial Hypertension

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Riociguat (Adempas, BAY63-2521)Drug

    BAY63-2521: 1mg tid - 2.5mg tid orally for 12 weeks

  • Riociguat (Adempas, BAY63-2521)Drug

    BAY63-2521: 1.5mg tid orally for 12 weeks

  • PlaceboDrug

    Matching Placebo tid orally for 12 weeks

Study groups in NCT00810693
Study groupRoleWhat they receive
Riociguat (Adempas, BAY63-2521) up to 2.5 mg_IDTExperimentalParticipants received Riociguat orally as a film-coated tablet up to 2.5mg three times daily (tid) (titration between 1.0 mg and 2.5 mg tid based on an individual dose titration (IDT) scheme) for 12 weeks
Receives: Drug: Riociguat (Adempas, BAY63-2521)
Riociguat (Adempas, BAY63-2521) up to 1.5 mg_IDTExperimentalParticipants received Riociguat orally as a film-coated tablet up to 1.5mg three times daily (tid) (titration between 1.0 mg and 1.5 mg tid based on an individual dose titration (IDT) scheme) for 12 weeks
Receives: Drug: Riociguat (Adempas, BAY63-2521)
PlaceboPlacebo comparatorParticipants received Placebo orally as a film-coated tablet three times daily (tid) for 12 weeks
Receives: Drug: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. 6 Minutes Walking Distance (6MWD) - Change From Baseline to Week 12

    6-minute walking distance (6MWD) is a measure for the objective evaluation of a patient's functional exercise capacity.

    Measured: Baseline and week 12

Secondary outcomes (7)
  1. Pulmonary Vascular Resistance (PVR) - Change From Baseline to Week 12

    The pulmonary vascular resistance (PVR) is a calculated hemodynamic parameter. PVR is derived from the directly measured parameters mean pulmonary arterial pressure (PAPmean) and pulmonary capillary wedge pressure (PCWP), divided by the cardiac output (CO). PVR and PAPmean are acquired during a right heart catheterization. CO is a calculated hemodynamic parameter, too. Formula: PVR = 80*(PAPmean - PCWP)/CO

    Measured: Baseline and week 12

  2. N-terminal Prohormone of Brain Natriuretic Peptide (NT-proBNP) - Change From Baseline to Week 12

    N-terminal pro-brain natriuretic peptide (NT-proBNP) levels in the blood are used for screening, diagnosis of acute congestive heart failure (CHF) and may be useful to establish prognosis in heart failure.

    Measured: Baseline and week 12

  3. World Health Organization (WHO) Functional Class - Change From Baseline to Week 12

    The WHO functional assessment of pulmonary arterial hypertension ranged from functional class I (participants with PH but without resulting limitation of physical activity) to class IV (participants with PH with inability to carry out any physical activity without symptoms. These participants manifest signs of right-heart failure.). Changes to a lower WHO functional class resemble improvement; changes to a higher functional class resemble deterioration of PAH.

    Measured: Baseline and week 12

  4. Percentage of Participants With Clinical Worsening

    The combined endpoint "time to clinical worsening", made up of the following components, defined by the first occurrence: all-cause mortality; heart/lung transplantation; atrial septostomy; first hospitalization due to pulmonary hypertension; start of a new pulmonary hypertension treatment; persistent worsening of 6MWD or WHO functional class due to deterioration of PH .

    Measured: At week 12

  5. Borg CR 10 Scale - Change From Baseline to Week 12

    The Borg CR10 Scale is a participant reported outcome measure used in clinical diagnosis of e.g. breathlessness and dyspnea. It documents the participant's exertion during a physical test. Low values indicate low levels of exertion; high values indicate more intense exertion reported by the participant. The score ranges from 0 ("Nothing at all") to 10 ("Extremely strong - Maximal").

    Measured: Baseline and week 12

  6. EQ-5D Utility Score - Change From Baseline to Week 12

    EQ-5D utility score is a Quality-of-Life participant reported outcome measure. The utility score is calculated based on five questions concerning problems with mobility, self-care, usual activities, pain/discomfort and anxiety/depression. An increase in the utility score represents an improvement in quality of life. The score ranges from -0.594 (worst answer in all five questions) to 1 (best answer in all five questions).

    Measured: Baseline and week 12

  7. Living With Pulmonary Hypertension (LPH) Questionnaire - Change From Baseline to Week 12

    The self-reported Living with Pulmonary Hypertension (LPH) questionnaire is designed to measure the effects of PH and PH-specific treatments on an individual's quality of life. The LPH total score can range from 0 (best) to 105 (worst).

    Measured: Baseline and week 12

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted18 Dec 2008 (estimated)
  2. Study start17 Dec 2008
  3. Primary completion14 May 2012
  4. Study completion14 May 2012

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
445 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00810693
Sponsor's protocol ID
12934
Other IDs
2008-003482-68, 2008
Acronym
PATENT-1
Status last verified
Nov 2023
First submitted
17 Dec 2008
Last updated
22 Nov 2023
Data monitoring committee
Yes

Publications

  • Archer SL. Riociguat for pulmonary hypertension--a glass half full. N Engl J Med. 2013 Jul 25;369(4):386-8. doi: 10.1056/NEJMe1306684. No abstract available.

    PubMed 23883383
  • Ghofrani HA, Galie N, Grimminger F, Grunig E, Humbert M, Jing ZC, Keogh AM, Langleben D, Kilama MO, Fritsch A, Neuser D, Rubin LJ; PATENT-1 Study Group. Riociguat for the treatment of pulmonary arterial hypertension. N Engl J Med. 2013 Jul 25;369(4):330-40. doi: 10.1056/NEJMoa1209655.

    PubMed 23883378
  • Rosenkranz S, Ghofrani HA, Beghetti M, Ivy D, Frey R, Fritsch A, Weimann G, Saleh S, Apitz C. Riociguat for pulmonary arterial hypertension associated with congenital heart disease. Heart. 2015 Nov;101(22):1792-9. doi: 10.1136/heartjnl-2015-307832. Epub 2015 Jul 1.

    PubMed 26135803
  • Wang C, Jing ZC, Huang YG, Zhou DX, Liu ZH, Meier C, Nikkho S, Curram J, Zhang P, He JG. Riociguat for the treatment of pulmonary hypertension: Chinese subgroup analyses and comparison. Heart Asia. 2016 May 17;8(1):74-82. doi: 10.1136/heartasia-2015-010712. eCollection 2016.

    PubMed 27326239
  • Ghofrani HA, Humbert M, Langleben D, Schermuly R, Stasch JP, Wilkins MR, Klinger JR. Riociguat: Mode of Action and Clinical Development in Pulmonary Hypertension. Chest. 2017 Feb;151(2):468-480. doi: 10.1016/j.chest.2016.05.024. Epub 2016 Jun 2.

    PubMed 27263466
  • Benza RL, Boucly A, Farber HW, Frost AE, Ghofrani HA, Hoeper MM, Lambelet M, Rahner C, Bansilal S, Nikkho S, Meier C, Sitbon O. Change in REVEAL Lite 2 risk score predicts outcomes in patients with pulmonary arterial hypertension in the PATENT study. J Heart Lung Transplant. 2022 Mar;41(3):411-420. doi: 10.1016/j.healun.2021.10.013. Epub 2021 Oct 28.

    PubMed 34848133
  • Benza RL, Farber HW, Frost AE, Ghofrani HA, Corris PA, Lambelet M, Nikkho S, Meier C, Hoeper MM. Application of the REVEAL risk score calculator 2.0 in the CHEST study. Respir Med. 2022 Apr-May;195:106783. doi: 10.1016/j.rmed.2022.106783. Epub 2022 Mar 1.

    PubMed 35256218
  • Benza RL, Ghofrani HA, Grunig E, Hoeper MM, Jansa P, Jing ZC, Kim NH, Langleben D, Simonneau G, Wang C, Busse D, Meier C, Ghio S. Effect of riociguat on right ventricular function in patients with pulmonary arterial hypertension and chronic thromboembolic pulmonary hypertension. J Heart Lung Transplant. 2021 Oct;40(10):1172-1180. doi: 10.1016/j.healun.2021.06.020. Epub 2021 Jul 10.

    PubMed 34353714
  • Humbert M, Coghlan JG, Ghofrani HA, Grimminger F, He JG, Riemekasten G, Vizza CD, Boeckenhoff A, Meier C, de Oliveira Pena J, Denton CP. Riociguat for the treatment of pulmonary arterial hypertension associated with connective tissue disease: results from PATENT-1 and PATENT-2. Ann Rheum Dis. 2017 Feb;76(2):422-426. doi: 10.1136/annrheumdis-2015-209087. Epub 2016 Jul 25.

    PubMed 27457511
  • Saleh S, Becker C, Frey R, Muck W. Population pharmacokinetics and the pharmacokinetic/pharmacodynamic relationship of riociguat in patients with pulmonary arterial hypertension or chronic thromboembolic pulmonary hypertension. Pulm Circ. 2016 Mar;6(Suppl 1):S86-96. doi: 10.1086/685404.

    PubMed 27162632

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Riociguat (Adempas, BAY63-2521) in people with Pulmonary Hypertension, run by Bayer at 122 sites in 30 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 22 Nov 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 122 sites in United States, Japan, Germany, France, Australia and 25 more countries. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 26 Feb 2014). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

6 Minutes Walking Distance (6MWD) - Change From Baseline to Week 12 (time frame: Baseline and week 12). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00810693, which also lists 10 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 22 Nov 2023.

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