Penn Highlands Healthcare, Department of Cardiology, Vardhman Mahavir Medical College and Safdarjung Hospital, Room no. 754, Super Specialty Block, New Delhi 110029, India (Dr Bansal).
Cardiol Therapeutics, Oakville, ON, Canada (Dr Ruzza, Wu and Hamer).
J Clin Lipidol. 2021 Nov-Dec;15(6):814-821. doi: 10.1016/j.jacl.2021.10.003. Epub 2021 Oct 20.
BACKGROUND: Evolocumab is a fully human monoclonal antibody inhibitor of proprotein convertase subtilisin/kexin type 9 approved in India for treatment of homozygous familial hypercholesterolemia (HoFH) in patients aged ≥12 years. OBJECTIVE: RAMAN (NCT03403374) was a single-country, open-label, phase 4 study evaluating the safety and tolerability of evolocumab in patients with HoFH in India. METHODS: Patients ≥12 to ≤80 years of age on stable lipid-lowering therapy with fasting low-density lipoprotein cholesterol (LDL-C) >3.4 mmol/L (>130 mg/dL) received evolocumab 420 mg subcutaneously monthly (every 2 weeks if on apheresis). The primary endpoint was patient incidence of treatment-emergent adverse events. Secondary endpoints included percent changes at week 12 in LDL-C and other lipids. RESULTS: Of 30 enrolled patients, 13 were <18 years of age. Mean±SD baseline levels of LDL-C, apolipoprotein B, and lipoprotein(a) were 12.3 ± 3.5 mmol/L (473.5 ± 135.2 mg/dL), 2.8 ± 0.7 g/L (275.3 ± 69.1 mg/dL), and 201.3 ± 177.6 nmol/L, respectively. Ten patients (33%) reported treatment-emergent adverse events, with 2 (7%) serious adverse events and none leading to discontinuation; no deaths occurred during evolocumab treatment. At week 12, mean (SE) percent changes from baseline in LDL-C, apolipoprotein B, and lipoprotein(a) were -6.4% (4.2), -6.0% (3.7), and -0.2% (4.9), respectively. Reductions in LDL-C among individual patients were variable and greatest in patients ≥18 years of age and with baseline LDL-C <13 mmol/L (<500 mg/dL). CONCLUSIONS: Evolocumab was safe and well tolerated in patients with HoFH in India with smaller reductions in LDL-C and other lipids than those observed in previous studies with HoFH and different populations.
背景:依洛尤单抗是一种全人源单克隆抗体抑制剂,可抑制脯氨酰肽酶原转化酶枯草溶菌素/柯萨奇蛋白酶 9,在印度被批准用于治疗 12 岁及以上的纯合子家族性高胆固醇血症(HoFH)患者。
目的:RAMAN(NCT03403374)是一项在印度进行的单中心、开放性、4 期研究,评估依洛尤单抗在 HoFH 患者中的安全性和耐受性。
方法:正在接受稳定降脂治疗且空腹低密度脂蛋白胆固醇(LDL-C)>3.4mmol/L(>130mg/dL)的年龄≥12 岁且≤80 岁的患者接受皮下注射依洛尤单抗 420mg,每月一次(如果正在接受血浆分离术,则每 2 周一次)。主要终点为患者治疗中出现的不良事件发生率。次要终点包括治疗 12 周时 LDL-C 和其他脂质的百分比变化。
结果:在 30 名入组患者中,有 13 名患者<18 岁。平均±标准差基线 LDL-C、载脂蛋白 B 和脂蛋白(a)水平分别为 12.3±3.5mmol/L(473.5±135.2mg/dL)、2.8±0.7g/L(275.3±69.1mg/dL)和 201.3±177.6nmol/L。10 名患者(33%)报告了治疗中出现的不良事件,其中 2 名(7%)发生严重不良事件,无事件导致停药;在依洛尤单抗治疗期间未发生死亡。治疗 12 周时,LDL-C、载脂蛋白 B 和脂蛋白(a)的平均(SE)百分比变化分别为-6.4%(4.2)、-6.0%(3.7)和-0.2%(4.9)。个别患者的 LDL-C 降低幅度不同,在年龄≥18 岁且基线 LDL-C<13mmol/L(<500mg/dL)的患者中降幅最大。
结论:依洛尤单抗在印度 HoFH 患者中安全且耐受良好,与 HoFH 患者和不同人群的既往研究相比,LDL-C 和其他脂质的降低幅度较小。
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