E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Chronic thromboembolic pulmonary hypertension |
|
E.1.1.1 | Medical condition in easily understood language |
CTEPH is a rare type of pulmonary hypertension, a condition in which the pressure in the blood vessels going to the lungs (pulmonary arteries) is higher than normal due to restricted blood flow. |
|
E.1.1.2 | Therapeutic area | Diseases [C] - Cardiovascular Diseases [C14] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 21.1 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10064911 |
E.1.2 | Term | Pulmonary arterial hypertension |
E.1.2 | System Organ Class | 10038738 - Respiratory, thoracic and mediastinal disorders |
|
E.1.3 | Condition being studied is a rare disease | Yes |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
To evaluate the effect of macitentan 75 mg versus placebo on exercise capacity at Week 28 in participants with chronic thromboembolic pulmonary hypertension (CTEPH).
|
|
E.2.2 | Secondary objectives of the trial |
• To evaluate the effect of macitentan 75 mg versus placebo on time to clinical worsening up to EODBT. • To evaluate the effect of macitentan 75 mg versus placebo on WHO FC at Week 28. • To evaluate the effect of macitentan 75 mg versus placebo on quality of life at Week 28. • To evaluate the effect of macitentan 75 mg versus placebo on daily physical activity. |
|
E.2.3 | Trial contains a sub-study | Yes |
E.2.3.1 | Full title, date and version of each sub-study and their related objectives |
• The objective of this sub-study is to confirm the effect of macitentan 75 mg versus placebo on PVR in participants with inoperable or persistent/recurrent CTEPH. • Patients participating in the substudy will undergo RHC at Screening and at Week 28. • The RHC will only be performed at sites able to comply with the protocol-specific RHC guidelines. |
|
E.3 | Principal inclusion criteria |
• Male or female ≥ 18 (or the legal age of consent in the jurisdiction in which the study is taking place)and ≤80 years of age. • CTEPH (WHO Group 4) fulfilling one of the following criteria: a. Inoperable due to the localization of the obstruction being surgically inaccessible (ie, distal disease) as confirmed by the adjudication committee (AC), and diagnosed based on • At least 2 of the following assessments in the 14 month-period prior to Randomization: Ventilation / Perfusion (V/Q) scan, pulmonary angiography (PA), computed tomography pulmonary angiogram (CTPA), magnetic resonance angiography (MRA). - RHC at least 12 weeks after full anticoagulation showing the following (at Screening or in the 24 week period prior to Randomization): mPAP > 20 mmHg, PAWP ≤15 mmHg and PVR ≥240 dyn·sec/cm5. b. Persistent/recurrent CTEPH after BPA, and deemed inoperable due to the localization of the obstruction being surgically inaccessible (ie, distal disease) as confirmed by the AC, diagnosed based on: • At least one of the following assessments performed after the latest BPA in the 14-month period prior to Randomization: V/Q scan, PA, CTPA or MRA • RHC at least 12 weeks after BPA and full anticoagulation showing the following (at Screening or in the 24-week period prior to Randomization): mPAP > 20 mmHg, PAWP ≤15 mmHg and PVR≥240 dyn·sec/cm5. c. Persistent/recurrent CTEPH after PEA (including PEA followed by BPA), diagnosed based on: • At least one of the following assessments performed after the PEA (and latest BPA following PEA, if applicable) in the 14-month period prior to Randomization: V/Q scan, PA, CTPA or MRA. • RHC performed at least 12 weeks after PEA (or latest BPA, if applicable) and full anticoagulationa showing the following (at Screening or in the 24 week period prior to Randomization): mPAP > 20 mmHg, PAWP ≤15 mmHg and PVR≥240 dyn·sec/cm5. • 6MWD ≥ 100 m AND ≤ 450 m, documented by an eligibility and a baseline 6MWT. The baseline 6MWD must not differ by more than 15% from the eligibility test. • WHO FC ≥II. • Participants are to receive riociguat as per local standard of care, unless it is contraindicated or unavailable |
|
E.4 | Principal exclusion criteria |
• Acute pulmonary embolism within 3 months prior to or during Screening. • Planned BPA during the fixed duration part of the double-blind period • Significant obstructive and restrictive lung disease. • Acute or chronic conditions (other than dyspnea) that limit the ability to comply with study requirements, in particular with 6MWT (eg, intermittent claudication). • Symptomatic coronary artery disease requiring an intervention within 3 months prior to or during Screening or anticipated during the fixed duration part of the study. • Decompensated cardiac failure if not under close supervision. • Known and documented life-threatening cardiac arrhythmias. • Acute myocardial infarction within 6 months prior to, or during Screening. • Cerebrovascular events (including transient ischemic attack) within 3 months prior to, or during Screening. • Known or suspicion of pulmonary veno-occlusive disease (PVOD). • Administration of ERAs, intravenous prostacyclins / prostacyclin analogs, or investigational treatment within 90 days prior to Randomization. • Change in dose or initiation of PDE-5 inhibitors, oral inhaled or SC prostacyclins / prostacyclin analogues, prostacyclin receptor agonists (or riociguat, within 90 days prior to Randomization, or anticipated during the fixed duration part of the DB period. • Hypotension, ie, systolic blood pressure (SBP) <90 mmHg or diastolic blood pressure (DBP) <50 mmHg at Screening. • Severe renal dysfunction with an estimated Glomerular Filtration Rate <30 mL/min/1.73 m2 using the Chronic Kidney Disease Epidemiology Collaboration formula at Screening. • Known moderate to severe hepatic impairment, defined as Child-Pugh Class B or C, based on records that confirm documented medical history. • Serum aspartate aminotransferase (AST) and/or alanine aminotransferase (ALT) ≥1.5 the upper limit of normal (ULN) at Screening. • Hemoglobin ≤100 g/L (<10 g/dL) at Screening. • Treatment with strong CYP3A4 inhibitors, (eg, ketoconazole, itraconazole, voriconazole, clarithromycin, telithromycin, nefazodone, ritonavir, and saquinavir) or moderate dual CYP3A4/CYP2C9 inhibitors (eg, fluconazole, amiodarone) or coadministration of a combination of moderate CYP3A4 (eg, ciprofloxacin, cyclosporine, diltiazem,erythromycin, verapamil) and moderate CYP2C9 inhibitors (eg, miconazole, piperine), within 30 days prior to Randomization. |
|
E.5 End points |
E.5.1 | Primary end point(s) |
Change from baseline to Week 28 in exercise capacity (6-minute walk distance [6MWD], as measured by the 6-minute walk test [6MWT]).
|
|
E.5.1.1 | Timepoint(s) of evaluation of this end point |
From baseline to Week 28. |
|
E.5.2 | Secondary end point(s) |
• Time to first Clinical Event Committee (CEC) confirmed clinical worsening up to EODBT. • Improvement in WHO FC from baseline to Week 28. • Change from baseline to Week 28 in • Pulmonary Arterial Hypertension - Symptoms and Impact (PAH-SYMPACT®) − Cardiopulmonary symptom domain score − Cardiovascular symptom domain score • Euro Quality of life-5-Dimension-5-Level (EQ-5D-5L©) utility score. • Change from baseline to Week 28 in accelerometer-assessed proportion of time spent in moderate to vigorous physical activity. |
|
E.5.2.1 | Timepoint(s) of evaluation of this end point |
Week 28 and up to End-of-double-blind-treatment (EODBT). |
|
E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | No |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | Yes |
E.6.7 | Pharmacodynamic | Yes |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | Yes |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | Yes |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | Yes |
E.8.1.2 | Open | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | Yes |
E.8.1.5 | Parallel group | Yes |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | Yes |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 2 |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 2 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 40 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | Yes |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |
Australia |
Canada |
China |
Colombia |
Israel |
Japan |
Korea, Republic of |
Mexico |
Russian Federation |
Saudi Arabia |
Serbia |
Singapore |
Taiwan |
Turkey |
Ukraine |
United States |
Austria |
Bulgaria |
France |
Germany |
Hungary |
Italy |
Lithuania |
Poland |
Romania |
Slovakia |
Spain |
United Kingdom |
Czechia |
Argentina |
|
E.8.7 | Trial has a data monitoring committee | Yes |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
|
|
E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 6 |
E.8.9.1 | In the Member State concerned months | 0 |
E.8.9.1 | In the Member State concerned days | |
E.8.9.2 | In all countries concerned by the trial years | 6 |
E.8.9.2 | In all countries concerned by the trial months | 0 |