The study aims to longitudinally capture the full spectrum of symptoms, treatment utilization, and overall Health-Related Quality of Life (HRQoL) experienced by PNH patients. By primarily utilizing home reported outcomes (HRO) data on symptom burden and treatment usage, supplemented with patient-reported outcome (PRO) measures, the study seeks to establish a new real-world data (RWD) source to understand symptom variability and HRQoL among PNH patients, including those receiving orally administered iptacopan.

The study will be prospective and observational, conducted over an initial period of six months per individual from the point of study enrollment. Participants will utilize the Folia mobile app to enroll, consent, and complete all study activities. A hybrid recruitment method of clinic referrals and community referrals will be employed to identify participants, who will be asked to track routine treatment, symptoms, changes in treatment plans, and HRQoL using the Folia Health mobile app. Monthly survey check-ins will be conducted to capture additional data inputs, with the possibility of integrating electronic health record (EHR) and/or claims data.

Inclusion Criteria:

Study participants eligible for inclusion in this study must meet all of the following criteria:

• Aged 18 or older
• US-based with a proficient understanding of and ability to read the English language
• Any patient with a diagnosis of PNH, regardless of symptom or treatment history

Exclusion Criteria:

Study participants who do not fit all inclusion criteria listed above are unable to participate in this study. Outside of required inclusion criteria, there are no other exclusion criteria in order to meet the exploratory nature of the primary endpoint.

Individuals aged 18+ who have been diagnosed with PNH, regardless of symptom or treatment history, and are US-based with a proficient understanding of and ability to read the English language.