普纳替尼联合贝林妥欧单抗或伊马替尼联合化疗治疗成人Ph阳性急性淋巴细胞白血病
Ponatinib-Blinatumomab or Imatinib-Chemotherapy for Adult Ph-Positive ALL.
一句话成人Ph阳性ALL一线治疗中,普纳替尼联合贝林妥欧单抗的无事件生存优于伊马替尼联合化疗。
研究问题
数据与样本
研究流程
- 1入组与随机分组:将成人Ph阳性ALL患者按2:1比例随机分入干预组和对照组。
- 2实施一线治疗:干预组接受普纳替尼联合贝林妥欧单抗,对照组接受伊马替尼联合化疗。
- 3设置交叉治疗:允许对照组可测量残留病持续存在或再次出现的患者交叉至干预组。
- 4评估治疗反应:在诱导治疗结束时评估完全血液学缓解,并报告贝林妥欧单抗巩固治疗后的分子学缓解及交叉治疗后的分子学缓解。
- 5随访与终点评估:以无事件生存期为主要终点,在中位随访23.7个月时报告估计的24个月无事件生存率,并报告无可测量残留病生存、总生存及累积复发情况。
设计思路
主要发现
- 主要终点:中位随访23.7个月时,干预组与对照组估计的24个月无事件生存率分别为86%和67%(P<0.001)。
- 其他疗效结果:两组无可测量残留病生存率分别为68%和42%,诱导治疗结束时完全血液学缓解率分别为94%和79%。
- 其他疗效结果:贝林妥欧单抗巩固治疗后,两组分子学缓解率分别为71%和49%;交叉至干预组的31例患者中,20例(64%)达到分子学缓解。
- 其他生存与复发结果:两组总生存率分别为90%和85%,累积复发率分别为5%和13%。
- 截至报告时,干预组仅19%的患者在首次完全血液学缓解后接受了造血干细胞移植。
可借鉴之处
- 可借鉴其分层次的疗效评估:以无事件生存为主要终点,同时报告血液学缓解、分子学缓解和复发,避免仅依赖早期反应判断方案价值。
- 可借鉴其基于残留病状态设置交叉治疗的设计,并单独报告交叉后的反应,使方案比较与后续治疗路径都有可追踪的结果。
数据与代码
局限
- 对照组允许交叉至干预组,可能影响总生存等后续结局对最初随机治疗方案差异的反映。
- 中位随访为23.7个月,长期结局仍需更长时间随访。
摘要(中文翻译)
背景:酪氨酸激酶抑制剂和免疫治疗的应用使费城染色体阳性急性淋巴细胞白血病(Ph阳性ALL)的结局得到显著改善。
方法:本临床试验将成人Ph阳性ALL患者按2:1比例随机分配,接受普纳替尼(ponatinib)联合贝林妥欧单抗(blinatumomab)(干预组)或伊马替尼(imatinib)联合化疗(对照组)作为一线治疗。对照组中可测量残留病持续存在或再次出现的患者允许交叉至干预组。主要终点为无事件生存期。
结果:共236例患者接受随机分组:158例分入干预组,78例分入对照组。患者中位年龄为55岁(范围,24至82岁)。中位随访23.7个月时,干预组和对照组估计的24个月无事件生存率分别为86%和67%(P<0.001)。无可测量残留病生存率分别为68%和42%。诱导治疗结束时,干预组94%的患者和对照组79%的患者达到完全血液学缓解。贝林妥欧单抗巩固治疗后,两组分别有71%和49%的患者达到分子学缓解。交叉至干预组后,31例患者中有20例(64%)达到分子学缓解。干预组和对照组的总生存率分别为90%和85%。累积复发率分别为5%和13%。截至本报告,干预组仅19%的患者在首次完全血液学缓解后接受了造血干细胞移植。
结论:在这项III期临床试验中,一线不含化疗的靶向联合免疫治疗方案优于伊马替尼联合化疗。(由Associazione Italiana per la Ricerca sul Cancro等资助;GIMEMA ALL2820的ClinicalTrials.gov注册号为NCT04722848。)
英文原文摘要
Background:The outcome of Philadelphia-positive acute lymphoblastic leukemia (Ph-positive ALL) has greatly improved with the use of tyrosine kinase inhibitors and immunotherapy.
Methods:In this trial, we randomly assigned adult patients with Ph-positive ALL in a 2:1 ratio to receive ponatinib plus blinatumomab (intervention group) or imatinib plus chemotherapy (control group) as frontline treatment. A crossover to the intervention group was allowed for patients with persistence or reappearance of measurable residual disease in the control group. The primary end point was event-free survival.
Results:A total of 236 patients underwent randomization: 158 to the intervention group and 78 to the control group. The median age of the patients was 55 years (range, 24 to 82). At a median follow-up of 23.7 months, the estimated 24-month event-free survival was 86% in the intervention group and 67% in the control group (P<0.001). Survival with no measurable residual disease was 68% and 42%, respectively. At the end of induction, a complete hematologic response was observed in 94% of the patients in the intervention group and in 79% of those in the control group. After blinatumomab consolidation, a molecular response was observed in 71% and 49% of the patients, respectively. After crossover to the intervention group, 20 of 31 patients (64%) had a molecular response. Overall survival was 90% in the intervention group and 85% in the control group. The cumulative incidence of relapse was 5% and 13%, respectively. As of this report, only 19% of the patients in the intervention group had undergone hematopoietic stem-cell transplantation after having had a first complete hematologic response.
Conclusions:In this phase 3 trial, a frontline chemotherapy-free targeted and immunotherapeutic approach was superior to the use of imatinib and chemotherapy. (Funded by Associazione Italiana per la Ricerca sul Cancro and others; GIMEMA ALL2820 ClinicalTrials.gov number, NCT04722848.).
摘要来自 PubMed。翻译与解读由模型根据摘要生成,可能有误,不构成诊疗建议;数据以原文为准,版权归原出版方所有。