全球性、前瞻性研究MDT-BRIDGE旨在评估可切除及临界可切除IIB–IIIB期非小细胞肺癌(NSCLC)患者围手术期使用度伐利尤单抗联合铂类化疗的效果。该研究整合了实时多学科团队(MDT)决策,以指导通过手术或根治性放化疗后度伐利尤单抗巩固治疗来实现根治性治疗。
☆中期分析显示,在疗效分析子集(N=84)中,95.2%的患者最终接受了根治性局部治疗(手术或根治性放化疗),85.7%的患者实现了根治性切除,其中R0切除率高达94.4%。在临界可切除患者中,仅经过两个周期的度伐利尤单抗+化疗后,82.1%的患者转化为可切除。在多学科团队再次评估后接受手术的患者中,病理学完全缓解率达到27.6%。
☆根治性放化疗队列:对于在新辅助治疗后变为不可切除或再次被归类为不可切除的患者:66.7%完成了根治性放化疗,58.3%开始了度伐利尤单抗巩固治疗,其中一半在数据截止时仍在治疗中。
☆放化疗期间的不良事件可控,无治疗相关死亡,治疗中止率低(5.6%)
这项研究强调了MDT驱动的个体化治疗对于复杂III期非小细胞肺癌病例的价值。本刊在2025 ESMO会议现场邀请研究者、德国Grosshansdor 肺科医院Martin Reck教授对这项研究结果和大会热点研究予以解读。
专家简介
Martin Reck 教授
德国Grosshansdorf肺科诊所胸部肿瘤科主任兼临床试验部门主任
德国肺癌研究中心(DZL)肺癌领域的PI
德国肺癌工作组、德国癌症协会、德国肺病学会、国际肺癌研究协会、欧洲肿瘤内科学会 (ESMO) 和美国临床肿瘤学会 (ASCO) 的成员
参与了多项重要的临床试验,旨在探索晚期肺癌的新疗法,例如维持治疗或靶向治疗,以及关键的生物标志物试验,主要研究兴趣包括非小细胞肺癌的靶向治疗、小细胞肺癌的新疗法、恶性胸膜间皮瘤的现代疗法,以及与预测标志物相关的转化研究
Q
《肿瘤瞭望》
这项研究的名称为“MDT-BRIDGE”,很有启发性。您能否解释一下其设计理念?多学科团队在决定后续局部治疗方案中具体扮演了什么角色?
Martin Reck:
各位同仁,很高兴能与大家探讨MDT-BRIDGE试验。MDT-BRIDGE试验是一项探索性、非随机化的II期临床试验,旨在为局部晚期IIB至IIIB期、可切除或临界可切除的非小细胞肺癌患者探索最佳治疗机会。
研究设计
试验设计如下:符合条件的患者为经确认的、未经治疗的IIB-IIIB期非小细胞肺癌患者。首先由MDT团队进行第一次可切除性评估。随后,患者接受两个周期的度伐利尤单抗+化疗的新辅助治疗方案。之后,进行第二次MDT评估,以评估这两个周期治疗后的疗效反应。经评估认为可切除的患者,再接受1-2个周期的化疗免疫治疗,随后进行手术,术后再接受为期1年的辅助度伐利尤单抗治疗。而那些经评估认为不可切除的患者,则转向放化疗,之后接受为期1年的巩固性度伐利尤单抗治疗。
该试验的主要终点是所有入组患者的切除率,我们本次报告的是对85例疗效可评估患者的中期分析结果。
Dear colleagues, it's my pleasure to talk to you about the MDT-BRIDGE trial. The MDT-BRIDGE trial was an exploratory, non-randomized phase II trial, exploring the best treatment opportunities for patients with locally advanced stage IIB to IIIB, resectable or borderline resectable, non-small cell lung cancer.
The design was as follows: Patients were eligible with a stage IIB to IIIB, untreated, confirmed non-small cell lung cancer. There was an assessment of resectability in the first MDT. And then the patient received two cycles of neoadjuvant chemo-immunotherapy with durvalumab. Then there was a second MDT assessing the response to these two cycles. And patients deemed resectable were receiving 1 to 2 additional cycles of chemo-immunotherapy, followed by surgery, followed by adjuvant durvalumab for 1 year. And those patients deemed unresectable went to chemoradiotherapy, followed by consolidation durvalumab for 1 year.
The primary endpoint was the resection rate of all resected patients, and we presented the interim analysis of an efficacy population of 85 patients.
(上下滑动可查看)
Q
《肿瘤瞭望》
根据您目前的观察,哪些患者亚群似乎从这一策略中获益最大?
Martin Reck:
首先,我们分析了患者(包括可切除和临界可切除)的特征。在第一次MDT评估中,28例患者被判定为临界可切除。对比患者的一般特征,未发现临界可切除人群与可切除人群存在显著差异。肿瘤特征分析发现了差异:与可切除人群相比,临界可切除人群中IIIB期患者更多,并且T4肿瘤(巨大或浸润性肿瘤)的患者也更多。
在观察疗效时,我们在第二次MDT评估中发现了一个有趣的现象:这28例临界可切除患者中,有23例最终转变为可切除,即他们被重新评估为可切除。
虽然主要终点是切除率,但在此次MDT-BRIDGE试验的中期分析中,共有72例患者接受了切除手术。有12例患者未接受手术,其中8例开始了放化疗,随后接受了巩固性度伐利尤单抗治疗。如前所述,主要终点是切除率。在接受手术的患者组中,切除率达到了85.7%,并且R0切除率非常高,为94.4%。
手术切除情况
可切除和不可切除队列的治疗情况
First of all, we looked at the characteristics of our patients, resectable or borderline resectable. And we had 28 patients deemed borderline resectable by the first MDT assessment. We looked at patient characteristics; we couldn't find any difference to the resectable population. But we also looked at tumor characteristics, and there was a difference. There were more patients with stage IIIB compared to the resectable population. And there were more patients with T4 tumors, bulky or invasive tumors, compared to the resectable population.
When looking at efficacy, what we have seen in the second MDT, interestingly, 23 out of these 28 borderline resectable patients turned out to become resectable, so they were reassessed as resectable.
While the primary endpoint was the resection rate, overall in the MDT-BRIDGE trial, in this interim analysis, we had 72 patients going to resection. 12 patients were not operated; 8 of these 12 patients started chemoradiotherapy and then subsequently went to consolidation durvalumab.
As mentioned, the primary endpoint was the resection rate. This was 86% in the group of patients that underwent surgery, with a very high R0 resection rate of more than 94%.
(上下滑动可查看)
Q
《肿瘤瞭望》
今年ESMO年会上公布了许多前沿试验结果。您重点关注哪些研究或报告?您认为哪些研究可能会显著影响临床实践?
Martin Reck:
首先,我认为对于临界可切除(borderline resectable)非小细胞肺癌的管理而言,MDT-BRIDGE试验方案是一种非常贴近临床实际的治疗策略。该试验主要得出两大成果:第一,在这组临界可切除NSCLC患者中,通过两个周期的化疗联合免疫治疗能够实现肿瘤的切除。第二,在接受放化疗的患者组中,这种治疗未对患者增加伤害。有人曾质疑这两个周期的化疗联合免疫治疗是否会带来毒性反应;但事实并非如此。截至目前,我们未观察到任何间质性肺炎病例。
除了这一治疗策略问题外,还有其他值得关注的研究。我们看到了两项关于T细胞衔接器用于广泛期小细胞肺癌(ES-SCLC)一线治疗的试验,分别是tarlatamab(DeLLphi-303试验)和obrixtamig(DAREON-8试验)。这些试验一方面在安全性方面证明了这种治疗方式的可行性,另一方面也显示出显著的有效性信号。在DeLLphi-303试验中(tarlatamab抗联合一线化疗免疫治疗及PD-L1维持治疗),我们观察到一年总生存率超过80%(具体为80.6%),这确实为小细胞肺癌一线治疗带来疗效的显著提升。这是一项非常重要的试验。
主席研讨会发布了一些非常重要的试验结果。其中一项是针对经治EGFR突变非小细胞肺癌患者的ADC药物III期试验——OptiTROP-Lung04试验,该试验比较了芦康沙妥珠单抗与铂类化疗在EGFR敏感突变、经EGFR-TKI治疗失败的局部晚期或转移性非鳞NSCLC患者中的疗效。虽然我们在ASCO大会上已经看到了芦康沙妥珠单抗与多西他赛随机对照的数据,但这次发布的是与铂类/培美曲塞的随机对照结果。该试验再次显示芦康沙妥珠单抗可带来无进展生存期和总生存期的显著改善。我认为这对于EGFR突变NSCLC的后续治疗是一个非常重要的信号。
另一项有趣的试验是HARMONi-6试验,该试验研究了铂类化疗联合依沃西单抗(一种兼具抗PD-1和抗VEGF功能的双特异性抗体)对比替雷利珠单抗联合化疗一线治疗晚期鳞状NSCLC的疗效和安全性。在首次数据发布中,依沃西单抗联合化疗方案带来缓解率和无进展生存的显著改善。目前我们正在等待最终的总生存期分析结果,但此次发布的数据同样非常引人注目且很重要。
除此之外,我们还获得了其他多项试验的重要数据,例如阿来替尼对比克唑替尼的ALEX试验最终生存数据。阿来替尼治疗患者的总生存结果非常出色。总之,本次ESMO会议上公布了大量数据,需要给予关注。
First of all, I do think that the MDT-BRIDGE trial is a very pragmatic clinical approach for the management of borderline resectable non-small cell lung cancer. So there were two major outcomes from this trial: Number one, in this group of patients with borderline resectable non-small cell lung cancer, we can achieve resectability by these two cycles of chemo-immunotherapy. And number two, in the group of patients who received chemoradiotherapy, we did not cause harm to these patients. There was a question whether there is any toxicity associated with these two cycles of chemo-immunotherapy; this was not the case. So far, we haven't seen any case of pneumonitis.
Besides this management question, there are additional studies of interest. We have seen two trials for first-line T-cell engagers, tarlatamab (DeLLphi-303) and obrixtamig (DAREON-8), which on the one hand showed feasibility in terms of safety, but on the other hand showed a significant signal of efficacy. For the DeLLphi-303 (tarlatamab plus frontline chemoimmunotherapy and PD-L1 maintenance therapy), we have seen a 1-year overall survival rate of more than 80% ( 80.6%), which is really a significant improvement of efficacy in first-line treatment of small cell lung cancer. This has been a very important trial.
Besides that, we also have seen in the Presidential Symposium very important trials. One of them has been a phase III trial looking at an ADC in pretreated patients with EGFR receptor mutated non-small cell lung cancer, the OptiTROP-Lung04 trial, comparing sacituzumab tirumotecan against platinum-based chemotherapy. While we have seen the data at ASCO with the randomization against docetaxel, now we had the randomization against platinum/pemetrexed. Again, this trial showed a significant improvement in progression-free survival and overall survival. I think this is a very important signal for the subsequent treatment of patients with EGFR mutant non-small cell lung cancer.The other interesting trial was the HARMONi-6 trial, looking at the combination of platinum-based chemotherapy and ivonescimab, a bispecific antibody with the anti-PD-1, anti-VEGF antibody. We have seen in the first readout a significant improvement in response and progression-free survival. Now we are waiting for the final overall survival analysis, but these are also very interesting and important data.Besides that, we had a lot of very important readouts from other trials, like the final survival data from the ALEX trial of alectinib versus crizotinib, with the overall survival which was very, very good compared to the patients treated with crizotinib. So a lot of data which have been presented here at the ESMO meeting.
(上下滑动可查看)
参考文献Reck M. Neoadjuvant durvalumab (D) + chemotherapy (CT) followed by either surgery (Sx) and adjuvant D or CRT and consolidation D in patients (pts) with resectable or borderline resectable stage IIB–IIIB NSCLC: interim analysis (IA) of the phase 2 MDT-BRIDGE study. 2025 ESMO, LBA65
(来源:《肿瘤瞭望》编辑部)
声 明
凡署名原创的文章版权属《肿瘤瞭望》所有,欢迎分享、转载。本文仅供医疗卫生专业人士了解最新医药资讯参考使用,不代表本平台观点。该等信息不能以任何方式取代专业的医疗指导,也不应被视为诊疗建议,如果该信息被用于资讯以外的目的,本站及作者不承担相关责任。