Summary: This is a single-center, phase I/IB study to identify the recommended phase II dose of Ropeginterferon-alfa 2b (P1101) in patients with CTCL who have failed at least two prior lines of skin-directed therapy (Stage IA-IB) or have less than a complete response to phototherapy or extracorporeal photopheresis (ECP) or total skin electron beam therapy (TSET), or stable/progressive disease after at leas...

Summary: The primary objective of this non interventional study is to evaluate symptom burden in adult patients with PV without symptomatic splenomegaly during treatment with ropeginterferon alfa-2b in a real-world setting. Further patient-relevant endpoints include effectiveness including complete hematologic response (CHR), event-free survival (EFS), safety and tolerability, treatment reality including d...

Summary: This multicenter longitudinal observational study focuses on Italian patients with Polycythemia Vera (PV) who were enrolled in the Low-PV RCT and continued receiving Ropeginterferon alfa-2b until the study's conclusion on March 31, 2023. It includes patients who were responders to Ropeginterferon alfa-2b after two years in the phase II randomized trial LOW-PV. Data will be collected retrospectivel...