Identifying biomarkers to predict the clinical course and benefits of therapy early in the course of the disease remains one of the most urgent and relevant challenges to improve overall patient management, to prevent treatment delay or overtreatment. This study is conducted to examine the effect of nintedanib treatment on change in biomarkers indicative of extracellular matrix turnover which have been shown recently to correlate with disease progression. This study further aims to confirm the association of biomarker course during the first three months of treatment and disease progression.

Inclusion criteria:

• Written informed consent consistent with International Conference on Harmonisation Good Clinical Practice and local laws, signed prior to participation in the trial including any study related procedures being performed;
• Male or female patients aged >=40 years at Visit 1;
• A clinical diagnosis of Idiopathic pulmonary fibrosis (IPF) within the last 3 years from visit 0, based upon the American Thoracic Society/ European Respiratory Society /Japanese Respiratory Society/ Latin American Thoracic Association 2011 guideline;
• Chest high resolution computed tomography (HRCT) scan performed within 18 months of Visit 0;
• Combination of HRCT pattern, and surgical lung biopsy pattern (the latter if available) as assessed by central review are consistent with the diagnosis of Idiopathic pulmonary fibrosis;
• Forced vital capacity (FVC) >=80% of predicted normal at Visit 1.

Exclusion criteria:

• Alanine transaminase, Aspartate aminotransferase > 1.5 fold upper limit of normal (ULN) at Visit 1;

• Total bilirubin > 1.5 fold ULN at Visit 1;

• Patients with underlying chronic liver disease (Child Pugh A, B or C hepatic impairment);

• Relevant airways obstruction, i.e. pre-bronchodilator Forced expiratory volume in 1 second / Forced vital capacity < 0.70;

• History of myocardial infarction within 6 months of visit 1 or unstable angina within 1 month of Visit 1;

• Bleeding Risk:

  • Known genetic predisposition to bleeding;
  • Patients who require fibrinolysis, full-dose therapeutic anticoagulation or high dose antiplatelet therapy;
  • History of haemorrhagic central nervous system (CNS) event within 12 months prior to Visit 1;
  • History of haemoptysis or haematuria, active gastro-intestinal bleeding or ulcers and/or major injury or surgery within 3 months prior to Visit 1;
  • International normalised ratio (INR) > 2 at Visit 1;
  • Prothrombin time (PT) and partial thromboplastin time (PTT) > 150% of ULN at Visit 1;

• Planned major surgery during the trial participation, including lung transplantation, major abdominal or major intestinal surgery;

• History of thrombotic event (including stroke and transient ischemic attack) within 12 months of Visit 1;

• Creatinine clearance < 30 mL/min calculated by Cockcroft-Gault formula at Visit 1;

• Treatment with nintedanib, pirfenidone, azathioprine, cyclophosphamide, cyclosporine, any other investigational drug, n-acetylcysteine, prednisone/prednisolone >15 mg daily or >30 mg every 2 days OR use of other systemic corticosteroids as well as any investigational drugs within 4 weeks of Visit 2;

• Known hypersensitivity to nintedanib, peanut, soya or to any other components of the study medication;

• Prior discontinuation of nintedanib treatment due to intolerability/ adverse events considered drug related;

• A disease or condition which in the opinion of the investigator may interfere with testing procedures or put the patient at risk when participating in this trial;

• Alcohol or drug abuse which in the opinion of the treating physician would interfere with the treatment and would affect patient's ability to participate in this trial;

• Patients not able to understand and follow any study procedures such as but not limited to home spirometry, including completion of self-administered questionnaires without help;

• Women who are pregnant, nursing, who plan to become pregnant while in the trial or female patients with positive pregnancy (ß-HCG) test at Visit 1 and/or Visit 2;

• Women of childbearing potential4 not willing or able to use highly effective methods of birth control per International Conference on Harmonisation (ICH) M3 (R2) that result in a low failure rate of less than 1% per year when used consistently and correctly.

• Patients with acute IPF exacerbation or any respiratory tract infection in the four weeks prior to Visit 1 or during the screening period;

• Patients who are or have been participating in another trial with investigational drug/s within one month prior to Visit 1 and patients who have previously been enrolled in this trial;

• Further exclusion criteria apply.

Once the criteria in section "Time Frame" are fulfilled, researchers can use the following link https://www.mystudywindow.com/msw/datasharing to request access to the clinical study documents regarding this study, and upon a signed "Document Sharing Agreement".

Furthermore, researchers can request access to the clinical study data, for this and other listed studies, after the submission of a research proposal and according to the terms outlined in the website.

One year after the approval has been granted by major Regulatory Authorities and after the primary manuscript has been accepted for publication, or after termination of the development program.

For study documents - upon signing of a 'Document Sharing Agreement'. For study data - 1. after the submission and approval of the research proposal (checks will be performed by the sponsor and/or the independent review panel, including checking that the planned analysis does not compete with sponsor's publication plan); 2. and upon signing of a legal agreement.