NCT00667823

Brief Summary

The main objective of the AC 055 303/SERAPHIN OL study, which will follow the AC 055 302/SERAPHIN study, will be to assess the long-term safety and tolerability of ACT 064992 in patients with symptomatic PAH.

Trial Health

98
On Track

Trial Health Score

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

Strong global presence with extensive site network
Enrollment
550

participants targeted

Target at P75+ for phase_3

Timeline
Completed

Started Oct 2008

Longer than P75 for phase_3

Geographic Reach
33 countries

152 active sites

Status
completed

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

First Submitted

Initial submission to the registry

April 24, 2008

Completed
4 days until next milestone

First Posted

Study publicly available on registry

April 28, 2008

Completed
6 months until next milestone

Study Start

First participant enrolled

October 17, 2008

Completed
12.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 7, 2020

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 7, 2020

Completed
1.2 years until next milestone

Results Posted

Study results publicly available

February 10, 2022

Completed
Last Updated

March 30, 2025

Status Verified

March 1, 2025

Enrollment Period

12.1 years

First QC Date

April 24, 2008

Results QC Date

December 2, 2021

Last Update Submit

March 28, 2025

Conditions

Keywords

SERAPHINPulmonary Arterial HypertensionACT-064992

Outcome Measures

Primary Outcomes (6)

  • Number of Participants With Treatment Emergent Adverse Events (TEAEs) up to 28 Days After Study Treatment Discontinuation

    An adverse event (AE) is any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. TEAE are defined as AEs with onset during the treatment period or that are a consequence of a pre-existing condition that has worsened since baseline.

    Up to 28 days after study treatment discontinuation (Up to 12 years)

  • Number of Participants With Death up to 28 Days After Study Treatment Discontinuation

    Number of participants with deaths up to 28 days after study treatment discontinuation were reported.

    Up to 28 days after study treatment discontinuation (Up to 12 years)

  • Number of Participants With Treatment Emergent Serious Adverse Events (TESAEs) up to 28 Days After Study Treatment Discontinuation

    An adverse event (AE) is any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. TEAE are defined as AEs with onset during the treatment period or that are a consequence of a pre-existing condition that has worsened since baseline. A SAE is an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly; medically significant, or requires intervention to prevent at least one of the outcomes listed above.

    Up to 28 days after study treatment discontinuation (Up to 12 years)

  • Number of Participants With AEs Leading to Permanent Discontinuation of Study Treatment

    Number of participants with AEs leading to permanent discontinuation of study treatment were reported. An adverse event (AE) is any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship.

    Up to 28 days after study treatment discontinuation (Up to12 years)

  • Number of Participants With Treatment Emergent Abnormal Liver Tests up to 28 Days After Study Treatment Discontinuation

    Number of participants with treatment-emergent abnormal liver tests: Alanine aminotransferase (ALT) greater than (\>) 3\*upper limit of normal (ULN) or aspartate aminotransferase (AST) \>3\* ULN, ALT \>5\* ULN or AST \>5\*ULN, ALT \>8\*ULN or AST \>8\*ULN, total bilirubin (TBIL) \>2\*ULN, ALT \>3\*ULN or AST \>3\*ULN and TBIL \>2\*ULN at any time were reported.

    Up to 28 days after study treatment discontinuation (Up to12 years)

  • Number of Participants With Treatment Emergent Hemoglobin Abnormality up to 28 Days After Study Treatment Discontinuation

    Number of participants with treatment-emergent hemoglobin (HGB) abnormality up to 28 days after study treatment discontinuation were reported. Participants assessed for different categories of HGB were \<=80 grams/Liter (g/L), \<=100g/L, decrease from baseline \>=20 g/L, and decrease from baseline \>=50 g/L.

    Up to 28 days after treatment discontinuation (Up to 12 years)

Study Arms (1)

ACT-064992

EXPERIMENTAL

ACT-064992

Drug: Macitentan

Interventions

Tablet, oral administration, 10 mg dose once daily

Also known as: ACT-064992
ACT-064992

Eligibility Criteria

Age12 Years+
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Signed informed consent prior to initiation of any study-mandated procedure.
  • Patients with pulmonary arterial hypertension and having completed the event-driven study, AC 055 302/SERAPHIN, or Patients who have experienced a clinical worsening of PAH in AC 055 302/SERAPHIN and for whom a written approval to roll over into this study has been obtained from the Sponsor.
  • Women of childbearing potential must have a negative pre-treatment serum pregnancy test and must use a reliable method of contraception during study treatment and for at least 28 days after study treatment termination.

You may not qualify if:

  • Any major violation of protocol AC 055 302/SERAPHIN.
  • Pregnancy or breast-feeding.
  • AST and/or ALT \> 3 times the upper limit of the normal range.
  • Any known factor or disease that might interfere with treatment compliance, study conduct or interpretation of the results, such as drug or alcohol dependence or psychiatric disease.
  • Known hypersensitivity to ACT 064992 or any of the excipients.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (158)

University of Alabama at Birmingham

Birmingham, Alabama, 35249-0001, United States

Location

Arizona Pulmonary Specialists

Phoenix, Arizona, 85012, United States

Location

University of California, San Diego

La Jolla, California, 92037, United States

Location

GLVA Healthcare Center

Los Angeles, California, 90073, United States

Location

Santa Barbara Cottage Hospital

Santa Barbara, California, 93105, United States

Location

Liu Center for Pulmonary Hypertension

Torrance, California, 90502-2006, United States

Location

University of Colorado CARDIAC AND VASCULAR CENTER

Aurora, Colorado, 80045-2548, United States

Location

University of Florida - Division of Pulmonology

Gainesville, Florida, 32610, United States

Location

Mayo Clinic, Jacksonville

Jacksonville, Florida, 32259, United States

Location

Emory University Hospital - McKelvey Center for Lung Transplantation & Pulmonary Vascular Disease

Atlanta, Georgia, 30322, United States

Location

Pulmonary & Critical Care of Atlanta

Atlanta, Georgia, 30342-1713, United States

Location

Atlanta Institute for Medical Research

Decatur, Georgia, 30030, United States

Location

University of Chicago

Chicago, Illinois, 60637-1432, United States

Location

University of Iowa, Pulmonary Hypertension Program

Iowa City, Iowa, 52242-1081, United States

Location

University of Kansas Medical Center

Kansas City, Kansas, 66160, United States

Location

Kentuckiana Pulmonary Associate, PLLC

Louisville, Kentucky, 40202, United States

Location

Louisiana State University Health Sciences Center

New Orleans, Louisiana, 70112-1393, United States

Location

Maine Medical Center

Portland, Maine, 04102-3134, United States

Location

University of Maryland School of Medicine; Division of Cardiology

Baltimore, Maryland, 21201-1544, United States

Location

Pulmonary/Critical Care Division/Tufts New England Medical Center

Boston, Massachusetts, 02111-1552, United States

Location

Massachusetts General Hospital

Boston, Massachusetts, 02114, United States

Location

Boston University School of Medicine

Boston, Massachusetts, 02118, United States

Location

University of Michigan

Ann Arbor, Michigan, 48109, United States

Location

Harper Univ. Hospital/ Wayne State University

Detroit, Michigan, 48201, United States

Location

Washington University School of Medicine

St Louis, Missouri, 63110-1010, United States

Location

University of Nebraska Medical Center

Omaha, Nebraska, 68198, United States

Location

University of NJ - Robert Wood Johnson Medical School

New Brunswick, New Jersey, 08903-0010, United States

Location

Columbia University Medical Center - Pediatric Cardiology

New York, New York, 10032, United States

Location

Duke University Medical Center

Durham, North Carolina, 27710-0001, United States

Location

University of Cincinnati Ohio Heart Health Center

Cincinnati, Ohio, 45219-2906, United States

Location

Ohio State University, Div. of Pul. & Critical Care

Columbus, Ohio, 43210, United States

Location

Allegheny General Hospital

Pittsburgh, Pennsylvania, 15212, United States

Location

Vanderbilt University Medical Center

Nashville, Tennessee, 37232, United States

Location

University of Texas Medical Center - St. Paul University

Dallas, Texas, 75390-8550, United States

Location

Baylor College of Medicine and the Methodist Hospital,

Houston, Texas, 77030, United States

Location

University of Texas Houston Health Center

Houston, Texas, 77030, United States

Location

Intermountain Med Ctr- Pulm Dept Heart and Lung Ctr

Murray, Utah, 84157-5701, United States

Location

Sentara Hospitals T/A Sentara Cardiovascular Research Intitute

Norfolk, Virginia, 23507-1904, United States

Location

Aurora St. Luke's Medical Center

Milwaukee, Wisconsin, 53125, United States

Location

Sanatorio Otamendi y Miroli S.A.

Buenos Aires, Ciudad Autonoma, C1121ABL, Argentina

Location

Hospital Britanico

Buenos Aires, Ciudad Autonoma, C1280AEB, Argentina

Location

Sanatorio MITRE

Buenos Aires, C1039AAO, Argentina

Location

Fundacion Favaloro

Buenos Aires, C1093AAS, Argentina

Location

Instituto Cardiologia Corrientes

Corrientes, W3400AMZ, Argentina

Location

Htal Italiano Cordoba

Córdoba, X5004BAL, Argentina

Location

Htla privado de Cordoba

Córdoba, x5016keh, Argentina

Location

Hospital Italiano - Garibaldi de Rosario

Santa Fe, S2001ODA, Argentina

Location

St. Vincent's Hospital

Darlinghurst, 2010, Australia

Location

The Alfred Hospital

Melbourne, 3004, Australia

Location

Royal Brisbane Hospital

Sunshine Coast, 4558, Australia

Location

Medical University of Vienna/ Department of Internal Medicine II, Division of Cardiology

Vienna, 1090, Austria

Location

Republican reserach - Pratical Centre of Cardiology

Minsk, 220036, Belarus

Location

Minsk Regional Clinical Hospital

Minsk, 223041, Belarus

Location

Vitebsk Regional Clinical Hospital

Vitebsk, 210037, Belarus

Location

University Hospital Gasthuisberg

Leuven, 3000, Belgium

Location

Mhat Nat Card Hosp - Pediatric Clinic

Sofia, BG, 1309, Bulgaria

Location

Peter Lougheed Centre

Calgary, Alberta, T1Y 6J4, Canada

Location

London Health Sciences Centre

London, Ontario, N6C 2R5, Canada

Location

Toronto General Hospital

Toronto, Ontario, M5G 2N2, Canada

Location

L'Hopital Laval

Sainte-Foy, Quebec, G1V 4G5, Canada

Location

Hospital del Torax

Santiago, 7500691, Chile

Location

Pontificia Universidad Catolica de Chile

Santiago, 833034, Chile

Location

Hospital San Juan de Dios

Santiago, 8350488, Chile

Location

Beijing Anzhen Hospital of the Capital University of Medical Sciences, Cardiology Department

Beijing, 100029, China

Location

Peking Union Medical College Hospital, Rheumatology Department

Beijing, 100032, China

Location

Guangdong General Hospital, Cardiology Department

Guangzhou, 510080, China

Location

Jiangsu Province Hospital - Pneumology Department

Nanjing, 210029, China

Location

Renji Hospital, Rheumatology Department

Shanghai, 200001, China

Location

Zhongshan Hospital Fudan University, Cardiology Department

Shanghai, 200032, China

Location

Renji Hospital, Cardiology Department

Shanghai, 200127, China

Location

Shanghai Pulmonary Hospital Department of Pulmonary Circulation

Shanghai, 200433, China

Location

Fundacion Cardiovascular de Colombia

Floridablanca, Santander Department, Colombia

Location

Fundacion Clinica Shaio

Bogotá, Colombia

Location

Clinical Hospital Center

Rijeka, 51 000, Croatia

Location

Helsinki University Central Hospital

Helsinki, 00290, Finland

Location

Hosp Bicetre - Dept Pulmo & Resp Intensive Care

Le Kremlin-Bicêtre, 94275, France

Location

Hopital Arnaud de Villeneuve Service des Maladies Respiratoires

Montpellier, 34295, France

Location

Hopital Haut-Leveque-Maison du Haut-Leveque

Pessac, 33604, France

Location

Unfallkrankenhaus Berlin, Klinik für Innere Medizin

Berlin, 12683, Germany

Location

Universität zu Köln, Medizinische Klinik III, Abteilung Kardiologie

Cologne, 50924, Germany

Location

Medizinische Klinik und Poliklinik I Universitätsklinikum Carl Gustav Carus

Dresden, 01307, Germany

Location

Universitätsklinikum Essen, Klinik für Kardiologie , Zentrum für Innere Medizin

Essen, 45122, Germany

Location

Universitätsklinikums Gießen und Marburg GmbH / Medizinische Klinik und Poliklinik II, Innere Med. / Pneumologie

Giessen, 35392, Germany

Location

Universität Greifswald / Klinik für Innere Medizin B,

Greifswald, 17475, Germany

Location

Universitätsklinikum Hamburg-Eppendorf / Onkologie, Hämatologie und Knochenmarktransplantation mit Sektion Pneumologie

Hamburg, 20246, Germany

Location

Medizinische Hochschule Hannover / Klinik für Pneumologie

Hanover, 30625, Germany

Location

Thoraxklinik am Universitätsklinikum Heidelberg

Heidelberg, 69126, Germany

Location

Universitätskliniken des Saarlandes / Medizinische Klinik und Poliklinik, Innere Medizin V

Homburg/Saar, 66421, Germany

Location

Universtätsklinik Leipzig

Leipzig, 04103, Germany

Location

Medizinische Klinik und Poliklinik I der Ludwig-Maximilians-Universität München / Klinikum Großhadern, Schwerpunkt Pneumologie

Munich, 81377, Germany

Location

Universitatsklinikum Regensburg/Innere Medizin II

Regensburg, 93053, Germany

Location

Prince of Wales Hospital/ Division of Rheumatology, Department of Medicine & Therapeutics

Hong Kong, Hong Kong

Location

Gottsegen György Országos Kardiológiai Intézet (Hungarian Institute of Cardiology)

Budapest, 1096, Hungary

Location

"Semmelweis Egyetem, Pulmonológiai Klinika"

Budapest, 1125, Hungary

Location

University of Pecs, Medical School/Heart Institute and 1st Department of Internal Medicine

Pécs, 7624, Hungary

Location

University of Szeged Albert Szent-Gyorgyi Medical & Pharmaceutical Center

Szeged, 6720, Hungary

Location

Life Care Institute of Medical Science & Research, Ahmedabad

Ahmedabad, 382428, India

Location

Care Hospital

Hyderabad, 500001, India

Location

Seth GS Medical College & King Edward VII Memorial (KEM) Hospital / Department Of Cardiology

Mumbai, 400012, India

Location

P D Hinduja National Hospital and Medical Research Centre/ Pulmunory Medicine

Mumbai, 400016, India

Location

G B Pant Hospital & Maulana Azad Medical College

New Delhi, 110 002, India

Location

Deenanath Mangeshkar Hospital and Research Centre

Pune, 411 004, India

Location

Rambam Health Care Campus / Division of Medicine, Institute of Pulmonology

Haifa, 31096, Israel

Location

Lady Davis Carmel Medical Center / Department of Cardiovascular Medicine, Pulmonary Division

Haifa, 34362, Israel

Location

Rabin Medical Center - Belinson campus - Pulmonary Institute

Petach - Tikvah, 49100, Israel

Location

Pulmonary Institute, Kaplan Medical Center

Rehovot, 76100, Israel

Location

Sourasky Medical Center - Division of Pulmonary Medicine and Allergy

Tel Aviv, 64239, Israel

Location

The pulmonary institute Sheba Medical centre

Tel Litwinsky, 52621, Israel

Location

IRCCS Policlinico San Matteo Policlinico / Dipartimento di Cardiologia

Pavia, 207100, Italy

Location

Policlinico Umberto I, Cardiologia

Roma, 00161, Italy

Location

Institut Jantung Negara (National Heart Institute)

Kuala Lumpur, 50400, Malaysia

Location

Instituto Nacional de Cardiología (INC) Ignacio Chávez

Mexico City, 14080, Mexico

Location

Unidad de Investigación Clinica en Medicina

Monterrey, 64718, Mexico

Location

VU Medisch Centrum, Dept. Pulmonology 4A 48

Amsterdam, 1081 HV, Netherlands

Location

St. Antonius ziekenhuis

Nieuwegein, 3435 CM, Netherlands

Location

Hospital Alberto Sabogal Sologuren - EsSALUD

Callao, Callao 02, Peru

Location

Clinica Medica Cayetano Heredia

Lima, 31, Peru

Location

Instituto de Enfermedades Respiratorias

Lima, 32, Peru

Location

Klinika Chorob Serca i Naczyn Instytut Kardiologii Collegium Medicum UJ

Krakow, 31-202, Poland

Location

Cardiology Otwock Priv

Otwock, 05-400, Poland

Location

III Katedra i Oddział Kliniczny Kardiologii Slaskiego Uniwersytetu Medycznego

Zabrze, 41-800, Poland

Location

Institutul de boli cardiovasculare / Clinica de Cardiologie

Bucharest, 022328, Romania

Location

Institutul de Pneumologie "Marius Nasta" / I. Clinica de Pneumoftiziologie

Bucharest, 050159, Romania

Location

Municipal Health Care Institution Kemerovo Cardiology Dispensary

Kemerovo, 650002, Russia

Location

Federal State Institution "State Scientific Research Centre of Preventive Medicine" of Rosmedtechnology

Moscow, 101990, Russia

Location

Federal State Institution "Scientific Research Institute of Pulmonology of Roszdrav"

Moscow, 105077, Russia

Location

State Health Care Institution of Moscow "City Clinical Hospital #1 named after N. I. Pirogov"

Moscow, 117049, Russia

Location

Federal State Institution "Russian Cardiology Scientific and Production Complex of Rosmedtechnology"

Moscow, 121552, Russia

Location

State Educational Institution "St Petersburg Medical Academy of Postgraduate Education" of Federal Agency of Public Health and Social Development

Saint Petersburg, 193015, Russia

Location

State Educational Institution of High Professional Education "St Petersburg State Medical

Saint Petersburg, 197 022, Russia

Location

Federal State Institution "Federal Center of Heart, Blood and Endocrinology named after V.A. Almazov" of Rosmedtechnology

Saint Petersburg, 197341, Russia

Location

State Institution "Scientific Research Institute of Cardiology" of Tomsk Scientific Center of RAMS, Siberian branch

Tomsk, 634012, Russia

Location

Tomsk Regional Clinical Hospital / Pulmonology Unit

Tomsk, 634063, Russia

Location

Municipal Health Care Institution "Clinical Hospital of Emergency Care named after N.V. Soloviov"

Yaroslavl, 150 003, Russia

Location

Sverdlovsk Regional Clinical Hospital # 1/ Cardiology Department (2nd Therapy Department)

Yekaterinburg, 620102, Russia

Location

University Children's Hospital (UNIVERZITETSKA DECJA KLINKIKA)

Belgrade, 11000, Serbia

Location

University Clinical Center of Serbia/ Institute for Lung Diseases and Tuberculosis

Belgrade, 11000, Serbia

Location

Zemun Clinical Hospital (Klinicko-bolnicki centar Zemun) / Department of Cardiology

Belgrade, 11080, Serbia

Location

National University Hospital/ The Heart Institute

Singapore, 119228, Singapore

Location

National Heart Centre (Nhc) Singapore

Singapore, 169609, Singapore

Location

National Institute of Cardiovascular Diseases (Slovenska zdravotnicka univerzita) / Faculty of Medical Specialty Studies (Fakulta zdravotnickych speci

Bratislava, 833 48, Slovakia

Location

Slovak Medical University (Slovenská zdravotnícka univerzita) / Faculty of Medical Speciality Studies (Fakulta zdravotníckych špecializačných štúdií)

Bratislava, 833 48, Slovakia

Location

Tread Research

Cape Town, 7505, South Africa

Location

Chris Hani Baragwanath Hospital, Department of Cardiology

Johannesburg, 2013, South Africa

Location

Netcare Milpark Hospital,Center for Chest Disease

Johannesburg, 2193, South Africa

Location

Block 4, Vergelegen Medi-Clinic

Somerset West, 7130, South Africa

Location

University Hospital of Lund, Dept. of Cardiology

Lund, 221 85, Sweden

Location

Uppsala University Hospital, Cardiology

Uppsala, 751 85, Sweden

Location

Taichung Veterans General Hospital

Taichung, 40705, Taiwan

Location

National Taiwan University Hospital/ Thoracic Surgical Division, Surgical Department

Taipei, 100, Taiwan

Location

Ramathibodi Hospital, Mahidol University, Cardiology Unit, Department of Medicine,

Bangkok, 10400, Thailand

Location

Siriraj Hospital, Mahidol University

Bangkok, 10700, Thailand

Location

Maharaj Nakorn Chiang Mai Hospital, Division of Rheumatology

Chiang Mai, 50200, Thailand

Location

Srinagarind Hospital/Division of Rheumatology, Department of Medicine, Faculty of Medicine, Khon Kaen University

Khon Kaen, 40002, Thailand

Location

Dnipropetrovsk State Medical Academy / Regional Diagnostic Center, Department of electrophysiologic researches and anaesthesiologic aid

Dnipro, 49060, Ukraine

Location

Danylo Galytskyi Lviv State Medical University

Lviv, 79010, Ukraine

Location

Odessa State Medical University, Military-medical Clinical Center of the South region

Odesa, 65044, Ukraine

Location

Royal Free Hospital

London, NW3 2QG, United Kingdom

Location

Related Publications (2)

  • Souza R, Delcroix M, Galie N, Jansa P, Mehta S, Pulido T, Rubin L, Sastry BKS, Simonneau G, Sitbon O, Torbicki A, Boyanova N, Chamitava L, Stein C, Channick RN. Long-Term Safety, Tolerability and Survival in Patients with Pulmonary Arterial Hypertension Treated with Macitentan: Results from the SERAPHIN Open-Label Extension. Adv Ther. 2022 Sep;39(9):4374-4390. doi: 10.1007/s12325-022-02199-x. Epub 2022 Jul 12.

  • Krause A, Zisowsky J, Dingemanse J. Modeling of pharmacokinetics, efficacy, and hemodynamic effects of macitentan in patients with pulmonary arterial hypertension. Pulm Pharmacol Ther. 2018 Apr;49:140-146. doi: 10.1016/j.pupt.2018.02.005. Epub 2018 Feb 28.

MeSH Terms

Conditions

Pulmonary Arterial Hypertension

Interventions

macitentan

Condition Hierarchy (Ancestors)

Hypertension, PulmonaryLung DiseasesRespiratory Tract Diseases

Limitations and Caveats

The limitation of the open-label study design was the open label nature of the trial due to which the number of participants decreased over time to the extent that 10 percent (%) and 2.4% of participants (N=550) remained in the study at Years 7 and 9, respectively.

Results Point of Contact

Title
Senior Clinical Leader PH
Organization
Actelion Pharmaceuticals Ltd

Publication Agreements

PI is Sponsor Employee
No
Restriction Type
OTHER
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
phase 3
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 24, 2008

First Posted

April 28, 2008

Study Start

October 17, 2008

Primary Completion

December 7, 2020

Study Completion

December 7, 2020

Last Updated

March 30, 2025

Results First Posted

February 10, 2022

Record last verified: 2025-03

Locations