Safety and Efficacy of BIBF 1120 at High Dose in Idiopathic Pulmonary Fibrosis Patients

A 52 Weeks, Double Blind, Randomized, Placebo-controlled Trial Evaluating the Effect of Oral BIBF 1120, 150 mg Twice Daily, on Annual Forced Vital Capacity Decline, in Patients With Idiopathic Pulmonary Fibrosis (IPF)

Idiopathic Pulmonary Fibrosis (IPF) is a chronic disease of unknown cause that results in scarring of the lung and there is a high unmet medical need for effective treatment to halt lung function decline, delay or avoid exacerbation (flare-ups), and ultimately to reduce the death rate.

In a large Phase 2 trial (1199.30) (NCT00514683), investigating the effects of 52 weeks of treatment with BIBF 1120 in patients with IPF, a positive effect was seen on lung function of patients treated with high dose of BIBF 1120 compared to placebo.

Hence it is the purpose of this trial to investigate and confirm the efficacy and safety of BIBF 1120 at a high dose in treating patients with IPF, compared with placebo. The trial will be conducted as a prospective, randomised design with the aim to collect safety and efficacy data.

Respiratory function is globally accepted for assessment of treatment effects in IPF patients. The chosen endpoint (Forced Vital Capacity (FVC) decline) is easy to obtain and is part of the usual examinations done in IPF patients.

Inclusion criteria:

1. Age >= 40 years;
2. IPF diagnosed, according to most recent American Thoracic Society (ATS), European Respiratory Society (ERS), Japanese Respiratory Society (JRS), Latin American Thoracic Association (ALAT) IPF guideline for diagnosis and management, within 5 years;
3. Combination of High Resolution Computerized Tomography (HRCT) pattern, and if available surgical lung biopsy pattern, as assessed by central reviewers, are consistent with diagnosis of IPF
4. Dlco (corrected for Hb): 30%-79% predicted of normal;
5. FVC>= 50% predicted of normal

Exclusion criteria:

1. Aspartate Aminotransferase (AST), Alanine Aminotransferase (ALT) > 1.5 x Upper Limit of Normal (ULN)
2. Bilirubin > 1.5 x ULN;
3. Relevant airways obstruction (i.e. pre-bronchodilator FEV1/FVC < 0.7);
4. Patient likely to have lung transplantation during study (being on transplantation list is acceptable for participation);
5. Myocardial infarction within 6 months;
6. Unstable angina within 1 month;
7. Bleeding risk (genetic predisposition; fibrinolysis or full-dose therapeutic anticoagulation or high dose antiplatelet therapy; history of hemorrhagic CNS event within 12 months; haemoptysis or haematuria or active gastro-intestinal bleeding or ulcers or major injury or surgery within 3 months);
8. Thrombotic risk (inherited predisposition; history of thrombotic event (including stroke and transient ischemic attacks) within 12 months;
9. International normalised ratio (INR) > 2, prolongation of prothrombin time (PT) and partial thromboplastin time (PTT) by > 50% of institutional ULN);
10. N-ACetyl Cystein, prednisone > 15mg/day or equivalent received within 2 weeks of visit 1;
11. Pirfenidone, azathioprine, cyclophosphamide, cyclosporine A received within 8 weeks of visit 1;