Peter Hillmen, MBChB, FRCP, FRCPath, PhD, of the University of Leeds, Leeds, UK, discusses a Phase III study (NCT03500549) evaluating the efficacy and safety of pegcetacoplan, a complement 3 inhibitor, in patients with paroxysmal nocturnal hemoglobinuria (PNH). This interview was recorded via an online conference call with The Video Journal of Hematological Oncology (VJHemOnc).