Single Arm, Open Label Trial With Iptacopan Treatment for 24 Weeks, in Patients on Stable Regimen of Anti-C5 Who Switch to Iptacopan.

Exclusion Criteria

• •Participation in any other investigational drug trial or use of other investigational drugs at the time of enrollment
• •Patients requiring red blood cell transfusion in the 6 months prior to screening or during screening
• •History of stem cell transplantation or any solid organ transplantation
• •Active systemic bacterial, viral (incl. COVID-19) or fungal infection within 14 days prior to study drug administration
• •Presence of fever ≥ 38.0 °C (100.4 °F) within 7 days prior to study drug administration
• •Human immunodeficiency virus (HIV) infection (known history of HIV or test positive for HIV antibody at Screening)
• •A history of recurrent invasive infections caused by encapsulated organisms, e.g. meningococcus or pneumococcus
• •Unstable medical condition including, but not limited to, myocardial ischemia, active gastrointestinal bleeding, coexisting chronic anemia unrelated to PNH, or unstable thrombotic event not amenable to active treatment as judged by the investigator at Screening.
• •History of cancer of any part of the body within the past 5 years,
• •Ongoing drug or alcohol abuse that could interfere with patient's participation in the trial.
• •Any medical condition deemed likely to interfere with the patient's participation in the study
• •Female patients who are pregnant or breastfeeding, or intending to conceive during the course of the study