Lancet Oncol:伊匹单抗联合纳武单抗治疗III期黑色素瘤的更佳剂量方案

2019-06-04 QQ MedSci原创

III期黑色素瘤患者的预后极差。在两个独立的小型早期试验中,伊匹单抗联合纳武单抗(标准剂量)可诱导较高比例的患者获得病理缓解,而且在中位随访32个月内,病理缓解的患者无一复发。但标准剂量的伊匹单抗联合纳武单抗的毒性较强,限制了该疗法的广泛临床应用。研究人员开展2期随机对照试验(OpACIN-neo)探究伊匹单抗联合纳武单抗的合适剂量,即毒性弱、且疗效不变。本研究招募年满18岁的可手术切除的III期

III期黑色素瘤患者的预后极差。在两个独立的小型早期试验中,伊匹单抗联合纳武单抗(标准剂量)可诱导较高比例的患者获得病理缓解,而且在中位随访32个月内,病理缓解的患者无一复发。但标准剂量的伊匹单抗联合纳武单抗的毒性较强,限制了该疗法的广泛临床应用。

研究人员开展2期随机对照试验(OpACIN-neo)探究伊匹单抗联合纳武单抗的合适剂量,即毒性弱、且疗效不变。本研究招募年满18岁的可手术切除的III期黑色素瘤患者,按1:1:1随机分至A组(伊匹单抗 3mg/kg +纳武单抗 1mg/kg,3周一疗程,共2个疗程)、B组(伊匹单抗 1mg/kg +纳武单抗 3mg/kg,3周一疗程,共2个疗程)或C组(伊匹单抗 3mg/kg,3周一疗程,共2个疗程,随后予以纳武单抗 3mg/kg,2周一疗程,共2个疗程)。主要结点是前12周内3-4级免疫相关副反应的患者比例和6周时获得客观缓解和病理缓解的患者比例。

2016年11月24日-2018年6月28日,共筛选了105位患者,其中89位(85%)符合要求,被随机分至三组。3位患者在随机分组后被发现不符合要求被排除;86位患者至少接受一剂量研究药物;A组 30位、B组30位、C组26位。在前12周,A、B、C三组分别发生12例(40%)、6例(20%)和13例(50%)3-4级免疫相关的副反应。B组和A组间的3-4级毒性差为-20%(95% CI -46~6,p=0.158),C组和A组间的差为10%(-20~40,p=0.591)。最常见的3-4级副反应是肝酶升高(A组 6例[20%])和结肠炎(C组 5例[19%]);B组无3-4级副反应。A组一位患者与治疗后9.5个月死于迟发性免疫相关的脑炎,可能与治疗相关。A组、B组和C组分别有19位(63% [95% CI 44–80])、17位(57%[37-75])和9位(35%[17-56])患者获得客观缓解,其中分别24位、23位和17位患者获得病理缓解。

本研究表明采用B组剂量方案的新辅助化疗可诱导较高比例的III期黑色素瘤患者获得病理缓解,而且安全性较好,有望广泛用于临床。应进行随机3期试验在III期黑色素瘤患者中进一步验证该治疗方案。


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    2019-09-15 juliusluan78
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    2020-02-16 minlingfeng
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    2019-12-23 docwu2019
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    2019-06-08 howi

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