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Pulmonary Arterial HypertensionPhase 3NCT02112487

Extension of the Psychometric Validation Study ORCHESTRA in Patients With PAH

A Phase 3 study testing Macitentan in people with Pulmonary Arterial Hypertension, run by Actelion at 32 sites in 3 countries.

Completed

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

Official record
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Trial summary

Prospective, multi-center, open-label, single-arm, Phase 3b extension study of macitentan in patients with PAH. To assess the long-term safety of macitentan in patients with pulmonary arterial hypertension (PAH) beyond treatment in the AC-055-310 study. Read more about this study

Who is it for?
Ages 18 to 80 years
Conditions the study is for
Pulmonary Arterial Hypertension
What is being tested?
Macitentan
Could I receive a placebo?
No, everyone receives an active treatment
How many people
88 participants
Where
32 sitesin 3 countries
Study dates
23 Jun 2014to 19 Sep 2018
Phase
Phase 3
Are there results?
None posted in the registry

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

  • Signed informed consent prior to any study-mandated procedure.
  • Patients with PAH who completed the ORCHESTRA study (AC-055-310) as scheduled
  • Women of childbearing potential (as defined below) must:
  • Have a negative serum pregnancy test at Visit 1 (i.e., Visit 4 of study AC 055 310) and agree to perform monthly serum pregnancy tests.
  • Agree to use two reliable methods of contraception in parallel, from Visit 1 until 1 month after study drug discontinuation (see details below).
  • A female is considered to have childbearing potential unless she meets at least one of the following criteria:
Show all 14Show fewer
  • Previous bilateral salpingo and/or oophorectomy, or hysterectomy.
  • Premature ovarian failure confirmed by a specialist.
  • Pre-pubescence, XY genotype, Turner syndrome, uterine agenesis.
  • Postmenopausal, defined as 12 consecutive months with no menses without an alternative medical cause.
  • Of the two contraceptive methods that must be used, one must be from Group 1, and one must be from Group 2, defined as follows:
  • Group 1: Oral, implantable, transdermal or injectable hormonal contraceptives, intrauterine devices, female sterilization (tubal ligation or non-surgical sterilization, e.g., permanent contraception with Essure procedure), or partner's sterilization (vasectomy). If a hormonal contraceptive is chosen from this group, it must be taken for at least one month prior to enrollment. Alternatively, if the Essure procedure is chosen as a contraceptive method, a hysterosalpingogram must have been performed to confirm correct location of the microinserts and tubal occlusion (as per manufacturer's recommendations).
  • Group 2: Female or male condoms, diaphragm or cervical cap, any of them in combination with a spermicide.
  • Sexual abstinence, rhythm methods, or contraception by the partner alone are not considered as acceptable methods of contraception for this study.

Who cannot join

  • Patients who prematurely discontinued study drug in study AC-055-310.
  • Females who are lactating or pregnant (positive Visit 1 pregnancy test) or plan to become pregnant during the study.
  • AST and/or ALT more than 3 X ULN.

Trial locations and contacts

32 sites in 3 countries.

32 sites in 3 countries

Spain14 sites
  • Hospital General de Alicante

    Alicante, 03010

  • Hospital Val Hebron

    Barcelona, 08035

  • Hospital Clinic

    Barcelona, 08036

  • Hospital de Cruces

    Bilbao, 48903

  • Hospital Reina Sofia

    Córdoba, 14004

  • Hospital Dr Negrin

    Las Palmas de Gran Canaria, 35010

  • Hospital Universitario Insular Gran Canarias

    Las Palmas de Gran Canaria, 35016

  • Hospital 12 Octubre

    Madrid, 28041

  • Hospital La Paz

    Madrid, 28046

  • Hospital Carlos Haya

    Málaga, 29010

  • Hospital Son Espases

    Palma de Mallorca, 7010

  • Hospital de Valdecilla

    Santander, 39008

  • Hospital Virgen del Rocio

    Seville, 41013

  • Hospita General U. Valencia

    Valencia, 46014

Other trials in Spain

France13 sites
  • Hôpital Louis Pradel

    Bron, 69677

  • Hôpital Côte de Nacre

    Caen, 14033

  • Hôpital Albert Michallon

    Grenoble, 38700

  • CHU de Bicêtre

    Le Kremlin-Bicêtre, 94270

  • CHRU Lille - Hôpital Cardiologique

    Lille, 59037

  • Hôpital Arnaud de Villeneuve

    Montpellier, 34295

  • Hôpitaux de Brabois

    Nancy, 54511

  • Hôpital de Haut Levêque

    Pessac, 33604

  • Hôpital Pontchaillou

    Rennes, 35033

  • Hôpital Charles Nicolle

    Rouen, 76031

  • Hôpital Nord

    Saint-Etienne, 42227

  • Hôpital Civil

    Strasbourg, 67091

  • Hôpital Larrey

    Toulouse, 31059

Other trials in France

Italy5 sites
  • Ospedale Sant'Orsola

    Bologna, 40138

  • A.O.U.C. Careggi

    Florence, 50124

  • UOC Immunologia Clinica B-PGRM Centro di Riferimento per la Sclerosi Sistemica

    Rome, 00161

  • Centro Per La Diagnosi E La Cura Dell'Ipertensione Polmonare

    Rome, 00186

  • Policlinico G.B. Rossi

    Verona, 37134

Other trials in Italy

About this study

Official title: An Extension of AC-055-310, a Multi-center, Open-label, Single-arm, Phase 3b Study of Macitentan in Patients With Pulmonary Arterial Hypertension to Psychometrically Validate the French, Italian and Spanish Versions of the PAH-SYMPACT™

Prospective, multi-center, open-label, single-arm, Phase 3b extension study of macitentan in patients with PAH.

To assess the long-term safety of macitentan in patients with pulmonary arterial hypertension (PAH) beyond treatment in the AC-055-310 study.

Read the detailed description

To assess the long-term safety of macitentan in patients with pulmonary arterial hypertension (PAH) beyond treatment in the AC-055-310 study.

Being tested
Macitentan
Keywords
pulmonary arterial hypertension, PAH-SYMPACT, PAH, psychometric instrument
Medical subject headings
Pulmonary Arterial Hypertension

What participants receive

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

  • MacitentanDrug

    Also called ACT-064992

    10 mg once daily

Study groups in NCT02112487
Study groupRoleWhat they receive
MacitentanExperimental10 mg once daily
Receives: Drug: Macitentan

What is being measured

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

  1. To assess the long-term safety of macitentan in patients with pulmonary arterial hypertension (PAH) beyond treatment in the AC-055-310 study.

    • Treatment-emergent adverse events (AEs)
    • AEs leading to premature discontinuation of study drug
    • Treatment-emergent serious adverse events (SAEs)
    • Proportion of patients with treatment-emergent ALT and/or AST abnormality (> 3, > 5, and > 8 x ULN) associated or not with total bilirubin > 2 x ULN.
    • Proportion of patients with treatment-emergent hemoglobin abnormality (≦ 100 g/L, and ≦ 80 g/L)

    Measured: Baseline to end of treatment visit (around 6 months on average)

Timeline

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

  1. First posted14 Apr 2014 (estimated)
  2. Study start23 Jun 2014
  3. Primary completion19 Sep 2018
  4. Study completion19 Sep 2018

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
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
88 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02112487
Sponsor's protocol ID
AC-055-311
Status last verified
Mar 2025
First submitted
8 Apr 2014
Last updated
30 Mar 2025
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Macitentan in people with Pulmonary Arterial Hypertension, run by Actelion at 32 sites in 3 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 14 inclusion and 3 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 30 Mar 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 32 sites in Spain, France, Italy. 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. 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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

To assess the long-term safety of macitentan in patients with pulmonary arterial hypertension (PAH) beyond treatment in the AC-055-310 study. (time frame: Baseline to end of treatment visit (around 6 months on average)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 30 Mar 2025; AzTrials last refreshed its copy on 7 Nov 2026.

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