Author Interviews, Hematology / 19.12.2019 Interview with: Tadeusz Robak MD, Ph.D. Professor of Hematology Medical University of Lodz, Poland What is the background for this study? What are the main findings?
  • Rozanolixizumab is an advanced SC anti-neonatal FcRn therapy currently in clinical development which has the potential to provide a targeted, convenient option to optimize individualized patient care.
  • The rozanolixizumab Phase II (TP0001) study was specifically designed to explore multiple dose regimens in order to inform the dosing strategy for further development in primary immune thrombocytopenia (ITP). Patients received either a single dose (1 x 15 mg/kg or 1 x 20 mg/kg) or multiple doses (5 x 4 mg/kg, 3 x 7 mg/kg, 2 x 10 mg/kg) of subcutaneous (SC) rozanolixizumab. The total dose was similar in all treatment groups, ranging from 15 to 21 mg/kg.
  • Rozanolixizumab was well tolerated by patients with primary ITP across all dose groups, consistent with previous rozanolixizumab studies. Additionally, improved platelet counts and reduced immunoglobin G (IgG) levels were seen at all doses and regimens of rozanolixizumab treatment, with higher response rate, higher percentage of responders and shorter time to response achieved by the 1 x 15 mg/kg, 1 x 20 mg/kg and the 3 x 7 mg/kg rozanolixizumab dose groups. These safety, tolerability and efficacy data support the Phase III development in patients with primary ITP.