Electronic Patient-reported Outcome Monitoring in Aplastic Anemia and Paroxysmal Nocturnal Hemoglobinuria

Aplastic anemia (AA) and paroxysmal nocturnal hemoglobinuria (PNH) are interrelated and very rare diseases. Therefore, little data about clinical characteristics, especially the variety of symptoms in the course of the respective disease are available. As a consequence, patients may be left on their own between infrequent follow-ups at a specialist center. A web-based symptom-monitoring application can support selfmanagement and patient empowerment and promotes a patient- centered interdisciplinary team approach in the context of a "disease management program". This pilot study is to investigate usability and feasibility of the electronic Patient-Reported Outcome (ePRO) application in AA/PNH by assessing recruitment, app utilization, data collection, functionality, acceptability after using and working with the ePRO application.