John M Joseph, Chakrabarti Prantar, Apte Shashikant, Bhattacharyya Maitreyee, S Chandrakala, Hansen Trine, Kolla Rohan, Ross Cecil, Seth Tulika, Siddharthan Neeraj, Abraham Aby
Department of Clinical Haematology, Haemato-Oncology, & Bone Marrow (Stem Cell) Transplant Unit Christian Medical College and Hospital Ludhiana India.
Department of Hematology NRS Medical College Kolkata India.
Res Pract Thromb Haemost. 2020 Oct 22;4(8):1324-1330. doi: 10.1002/rth2.12441. eCollection 2020 Nov.
Hemophilia A is an X chromosome-linked bleeding disorder caused by the deficiency of coagulation factor VIII (FVIII). The majority of the Indian population with hemophilia A use plasma-derived clotting factors and, in some instances, fresh frozen plasma and cryoprecipitate. Safer and more efficient treatment options are needed for this group of patients.
To assess the safety of turoctocog alfa, a third-generation recombinant FVIII molecule, for the treatment and prophylaxis of bleeding episodes in previously treated Indian patients with moderate or severe hemophilia A.
PATIENTS/METHODS: This single-country, multicenter, open-label, nonrandomized trial enrolled 60 patients who received prophylactic treatment with turoctocog alfa for 8 weeks, which corresponded to a minimum of 20 exposure days. Confirmed development of FVIII inhibitors during the 8-week treatment period was evaluated. Other assessments included frequencies of adverse drug reactions (ARs), serious adverse reactions, drug-related allergic reactions, and infusion reactions during the 12-week period after the first treatment; hemostatic effect of turoctocog alfa for the treatment of bleeding episodes; and total annualized dose of turoctocog alfa administered during the 8-week treatment period.
No incidence of FVIII inhibitors was detected. No safety concerns such as ARs, serious ARs, or drug-related allergic reactions were noted. The hemostatic success rate for the treatment of bleeding episodes with turoctocog alfa was 81.6%.
The trial results demonstrated that turoctocog alfa is a safe treatment option for the prophylaxis and treatment of bleeding episodes in previously treated adolescent and adult patients with hemophilia A in the Indian population.
甲型血友病是一种由凝血因子 VIII(FVIII)缺乏引起的 X 染色体连锁出血性疾病。大多数患有甲型血友病的印度人群使用血浆源性凝血因子,在某些情况下,还使用新鲜冰冻血浆和冷沉淀。这组患者需要更安全、更有效的治疗选择。
评估第三代重组 FVIII 分子——重组人凝血因子 VIII,用于治疗和预防先前接受过治疗的中度或重度甲型血友病印度患者出血发作的安全性。
患者/方法:这项单国家、多中心、开放标签、非随机试验纳入了 60 名接受重组人凝血因子 VIII 预防性治疗 8 周的患者,这相当于至少 20 个暴露日。评估了在 8 周治疗期内 FVIII 抑制剂的确诊发生情况。其他评估包括首次治疗后 12 周内药物不良反应(ARs)、严重不良反应、药物相关过敏反应和输液反应的发生频率;重组人凝血因子 VIII 治疗出血发作的止血效果;以及 8 周治疗期内给予的重组人凝血因子 VIII 的年度总剂量。
未检测到 FVIII 抑制剂的发生。未发现 ARs、严重 ARs 或药物相关过敏反应等安全问题。重组人凝血因子 VIII 治疗出血发作的止血成功率为 81.6%。
试验结果表明,重组人凝血因子 VIII 是预防和治疗印度人群中先前接受过治疗的青少年和成年甲型血友病患者出血发作的安全治疗选择。