The goal of this clinical trial is to assess long-term safety and efficacy of rusfertide in subjects with polycythemia vera. Subjects who complete dosing with rusfertide until the end-of-treatment visit of a Phase 2 rusfertide study and meet the inclusion/exclusion criteria for this study, are eligible to participate in this open-label study and continue treatment with rusfertide.
Phase 3 trials are pivotal studies with large patient populations (hundreds to thousands) designed to prove efficacy and safety for FDA submission. A successful Phase 3 readout is typically the last major hurdle before a New Drug Application (NDA) or BLA filing.
Enrollment is complete. The trial is in its follow-up or data collection phase — a readout may occur on or near the primary completion date.
Protagonist Therapeutics (PTGX) is the sponsoring company for this trial. BiotechSign currently grades this company D (44/100) based on composite catalyst signals across its full pipeline. This trial is one data point in that overall catalyst picture.