PMID- 37477863 OWN - NLM STAT- MEDLINE DCOM- 20230811 LR - 20230811 IS - 1865-3774 (Electronic) IS - 0925-5710 (Linking) VI - 118 IP - 3 DP - 2023 Sep TI - Interim analysis of post-marketing surveillance of ravulizumab for paroxysmal nocturnal hemoglobinuria in Japan. PG - 311-322 LID - 10.1007/s12185-023-03625-8 [doi] AB - Ravulizumab is a long-acting C5 inhibitor available for treating paroxysmal nocturnal hemoglobinuria (PNH). Post-marketing surveillance (PMS) was implemented following its approval in September 2019 in Japan. We report safety data obtained through to December 2021 for 218 patients and effectiveness data for 194 patients (182 switched from eculizumab and 12 complement inhibitor-naive). Over a median follow-up of 74.4 weeks, 193 adverse events (AEs) were reported in 66/218 patients (30.3%; incidence 72.73/100 patient-years). The two most frequent AEs were anemia and pyrexia (each 3.01/100 patient-years). The incidence of serious AEs was 36.93/100 patient-years. In patients who switched from eculizumab, lactate dehydrogenase (LDH) and hemoglobin (Hb) levels were maintained over 26 weeks of ravulizumab treatment. In complement inhibitor-naive patients, LDH decreased significantly and Hb increased significantly over 26 weeks of ravulizumab treatment. These data for Japanese patients with PNH who were naive to complement inhibitors and patients who switched from eculizumab show that the safety and effectiveness of ravulizumab are consistent with the published clinical trial data. However, transfusion independence was less likely in patients with bone marrow failure. Further follow-up data from this PMS will help to elucidate the long-term clinical safety and effectiveness of ravulizumab for treating PNH. CI - (c) 2023. Japanese Society of Hematology. FAU - Usuki, Kensuke AU - Usuki K AUID- ORCID: 0000-0002-1216-4470 AD - Department of Hematology, NTT Medical Center Tokyo, Tokyo, Japan. kensuke.usuki@gmail.com. FAU - Ikezoe, Takayuki AU - Ikezoe T AD - Department of Hematology, Fukushima Medical University, Fukushima, Japan. FAU - Ishiyama, Ken AU - Ishiyama K AD - Department of Hematology, Kanazawa University Hospital, Kanazawa, Japan. FAU - Kanda, Yoshinobu AU - Kanda Y AD - Department of Hematology, Jichi Medical University, Shimotsuke, Japan. FAU - Gotoh, Akihiko AU - Gotoh A AD - Department of Hematology, Tokyo Medical University, Tokyo, Japan. FAU - Hayashi, Hideo AU - Hayashi H AD - Alexion Pharma GK, Tokyo, Japan. FAU - Shimono, Akihiko AU - Shimono A AD - Alexion Pharma GK, Tokyo, Japan. FAU - Kitajima, Akiyo AU - Kitajima A AD - Alexion Pharma GK, Tokyo, Japan. FAU - Obara, Naoshi AU - Obara N AD - Department of Hematology, University of Tsukuba, Tsukuba, Japan. FAU - Nishimura, Jun-Ichi AU - Nishimura JI AD - Department of Hematology and Oncology, Osaka University Graduate School of Medicine, Suita, Japan. LA - eng PT - Journal Article DEP - 20230721 PL - Japan TA - Int J Hematol JT - International journal of hematology JID - 9111627 RN - C3VX249T6L (ravulizumab) RN - 0 (Complement Inactivating Agents) RN - EC 1.1.1.27 (L-Lactate Dehydrogenase) SB - IM MH - Humans MH - *Hemoglobinuria, Paroxysmal/drug therapy MH - Japan/epidemiology MH - Complement Inactivating Agents/adverse effects MH - L-Lactate Dehydrogenase MH - Product Surveillance, Postmarketing MH - Hemolysis OTO - NOTNLM OT - Paroxysmal nocturnal hemoglobinuria OT - Post-marketing surveillance OT - Ravulizumab EDAT- 2023/07/21 13:15 MHDA- 2023/08/11 06:43 CRDT- 2023/07/21 11:12 PHST- 2023/03/09 00:00 [received] PHST- 2023/06/12 00:00 [accepted] PHST- 2023/06/06 00:00 [revised] PHST- 2023/08/11 06:43 [medline] PHST- 2023/07/21 13:15 [pubmed] PHST- 2023/07/21 11:12 [entrez] AID - 10.1007/s12185-023-03625-8 [pii] AID - 10.1007/s12185-023-03625-8 [doi] PST - ppublish SO - Int J Hematol. 2023 Sep;118(3):311-322. doi: 10.1007/s12185-023-03625-8. Epub 2023 Jul 21.