E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Idiopathic pulmonary fibrosis (IPF) |
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MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 9.1 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10021240 |
E.1.2 | Term | Idiopathic pulmonary fibrosis |
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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 |
The primary objective of the study is to determine if ambrisentan is effective in delaying disease progression and death in subjects with IPF. |
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E.2.2 | Secondary objectives of the trial |
Secondary objectives include evaluation of the safety and effect of ambrisentan on development of pulmonary hypertension, quality of life and dyspnea symptoms in this patient population.
Exploratory evaluations will include changes in other disease-related assessments including the UNOS LAS, changes in microRNA expression and biomarkers related to IPF pathogenesis. Blood will be collected and stored for later analysis to determine relationships between serum and plasma marker levels and relation to treatment effect and outcomes measures. |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1. Male or females from 40 to 80 years of age 2. Diagnosis of Idiopathic Pulmonary Fibrosis (IPF) based on the following criteria in accordance with ATS-ERS guidelines for diagnosing IPF: — Definite or probable UIP confirmed on SLB by core pathologist or — In absence of SLB, HRCT scan showing definite findings for IPF (bibasilar reticular abnormalities with minimal ground glass opacities) as determined by core review and three of the following “minor criteria”: — Age > 50 years — Insidious onset of otherwise unexplained dyspnea on exertion — Duration of illness ≥ 3 months — Bibasilar, inspiratory crackles Within 90 days of study enrollment, diagnosis must be confirmed by HRCT 3. Honeycombing ≤ 5% as assessed on HRCT; HRCT results will undergo a core review process (please see Section 7.4 of the protocol) to confirm diagnosis. 4. Willingness to undergo RHC at baseline and at Visit 7 or end of study (EOS) 5. Willingness and ability to comply with required monitoring of liver function every 28 days. LFTs include serum ALT, AST, alkaline phosphatase, gamma glutamyl transferase (GGT), and total bilirubin concentrations 6. Forced vital capacity (FVC) > 50 to ≤ 95% of predicted with a ratio of FEV1 (L) / FVC (L) ≥ 0.7. Pulmonary function tests must be completed no more than 90 days before enrollment 7. Ability to perform and complete 6MWT at screening 8. Negative serum pregnancy test at screening and negative urine pregnancy test at randomization for female subjects of childbearing potential (defined in Section 6.3 of the protocol). 9. Female subjects of childbearing potential must be willing to use at least two reliable methods of contraception throughout their participation in the study and 30 days after discontinuation of IMP unless the subject has had a tubal sterilization, is postmenopausal, or has a Copper T 380A intrauterine device (IUD) or LNg 20 IUD inserted, in which case no other contraception is needed. Subjects of childbearing potential must also be willing to undergo pregnancy tests every 28 days. 10. Male subjects must be capable of understanding and acknowledging potential risks of testicular tubular atrophy and infertility associated with taking this IMP as described in the Informed Consent Form (ICF) 11. Competency to understand the information given in the Institutional Review Board (IRB) or Independent Ethics Committee (IEC) approved ICF. Subjects must sign the form prior to the initiation of any study procedures, unless the assessment is performed in the routine care for this disease |
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E.4 | Principal exclusion criteria |
1. Diagnosis of an ILD or restrictive lung disease other than UIP or IPF 2. Obstructive lung disease as determined by evidence of airflow obstruction on HRCT or physiologic criteria including: • FEV1/FVC ratio < 0.7 • RV > 120% by plethysmography or significant (verified by radiologist) emphysema on HRCT if plethysmography not available • Evidence of reactive airway disease by change in FEV1 of > 12% following bronchodilator challenge
3. Evidence of sustained improvement of IPF condition defined as improvement from pre-therapy PFTs observed with two or more successive post-therapy PFTs over the year prior to randomization 4. Condition(s) that is or are a contraindication for RHC including: • Tricuspid or pulmonary valve stenosis • Prosthetic tricuspid or pulmonary valve • Right atrial or right ventricular masses • Cyanotic heart disease • Allergy to latex or catheter material • Previous pneumonectomy. 5. Active or recent (≤ 60 days prior to enrollment) pulmonary or upper respiratory tract infection 6. Hospitalization within 60 days of screening for an acute exacerbation of IPF (AE-IPF) 7. Chronic heart failure (NYHA class III/IV) or known left ventricular ejection fraction < 25% 8. Chronic treatment with the following drugs prescribed for IPF (within 4 weeks of randomization):oral corticosteroids (> 20 mg/day of prednisone or equivalent), immunosuppressive or cytotoxic drugs, antifibrotic drugs, chronic use of Nacetylcysteine (prescribed for IPF) 9. Acute or chronic impairment (other than dyspnea) which limits the ability to comply with study requirements and procedures including the 6MWT 10. Treatment with ambrisentan in a clinical study or with commercial product 11. Treatment with an approved or experimental ERA within 30 days prior to randomization 12. Chronic use of sildenafil or other phosphodiesterase type 5 (PDE-5) inhibitor for pulmonary hypertension 13. Chronic treatment with immunosuppressive, cytotoxic, or antifibrotic drugs including pirfenidone, D-penicillamine, colchicine, TNF-α antagonists, imatinib, interferon-gamma, cyclophosphamide, cyclosporine A, or azathioprine within 30 days of randomization (Section 5.4 of the protocol) 14. Prior ERA treatment discontinued for any toxicity 15. ALT or AST > 1.5 × ULN at screening 16. Hemoglobin concentration < 75% of LLN at screening 17. Serum creatinine ≥ 2.5 mg/dL (221 μmol/L) or subject requires hemodialysis, peritoneal dialysis or hemofiltration 18. Systolic blood pressure < 85 mmHg 19. History of malignancies within the past 5 years, with the exception of basal cell carcinoma of the skin or successfully treated in situ carcinoma of the cervix 20. Female who is pregnant or nursing 21. Known history of alcohol abuse within 1 year of enrollment 22. Participation in a clinical study and receiving another investigational drug or device (not placebo) within 28 days of screening 23. Comorbid condition or illness limiting life expectancy to < 1 year at time of screening 24. Serious or active medical or psychiatric condition which, in the opinion of the Investigator, would interfere with subject treatment, assessment or compliance with the protocol |
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E.5 End points |
E.5.1 | Primary end point(s) |
A composite endpoint of Progression Free Survival (PFS) will be used in this study. The primary endpoint, time to death or disease progression, will be defined as the first incidence of any of the following: • Either a decrease of ≥10% in FVC (L) and a decrease of ≥ 5% in diffuse lung capacity for carbon monoxide (DLCO) (ml/min/mmHg) or a decrease of ≥5% in FVC (L) and a decrease of ≥ 15% in DLCO (ml/min/mmHg); (deterioration in FVC and DLCO must be confirmed at the subsequent visit within 28 (± 14) days)
• Respiratory hospitalization (as defined in Section 7.10 of the protocol).Events will be adjudicated by a blinded Endpoint Committee • All-cause mortality.
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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 | Yes |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
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 | No |
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 | Yes |
E.8.1.7.1 | Other trial design description |
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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.8.3 |
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 | 4 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 80 |
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 | Information not present in EudraCT |
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 |
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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
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Last Patient, last visit. |
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 3 |
E.8.9.1 | In the Member State concerned months | 9 |
E.8.9.1 | In the Member State concerned days | 0 |
E.8.9.2 | In all countries concerned by the trial years | 3 |
E.8.9.2 | In all countries concerned by the trial months | 9 |
E.8.9.2 | In all countries concerned by the trial days | 0 |