A Follow-up Study to Test Long-term Treatment With Nerandomilast in People With Pulmonary Fibrosis Who Took Part in a Previous Study With Nerandomilast

This study is open to people with idiopathic pulmonary fibrosis (IPF) or progressive pulmonary fibrosis (PPF). They can only take part if they have completed treatment in a previous study with a medicine called nerandomilast or BI 1015550. The goal of this study is to find out how well people with pulmonary fibrosis tolerate long- term treatment with nerandomilast. The study also tests whether nerandomilast improves lung function and prolongs the time until symptoms get worse, participants need to go to the hospital, or die. Every participant takes nerandomilast as…

• : 1. Patients who completed treatment in the parent trials (1305-0014, 1305-0023, or 1305-0035) without prematurely discontinuing treatment permanently according to protocol (i.e. completed treatment with or without temporary treatment interruption) 2. Signed and dated written informed consent in accordance with ICH-GCP and local legislation prior to admission to the trial 3. Women of childbearing potential (WOCBP) must be ready and able to use highly effective methods of birth control per ICH M3 (R2) that result in a low failure rate of less than 1% per year when used consistently and correctly. WOCBP taking oral contraceptives (OCs) also have to ensure the use of one barrier method during sexual intercourse with their partner, e.g., condom to account for the risk of potentially reduced efficacy of the OCs in the event of severe vomiting and diarrhoea. For France, fertile males must be ready and able to use acceptable methods of birth control

Use the source registry for the full inclusion and exclusion criteria before discussing referral or enrolment.