Early clinical antitumor activity of VRN101099 across diverse HER2-mutants in solid tumors
https://esmocongress.esmo.org
ESMO 2026
2026 年 10 月 23–27 日 · Madrid · 共 2946 条
HER2
★★★42 人 · 69 条 · 8 篇摘要
本事件热度走势
当前热度 11·可比范围峰值 13(10月25日 00:00)·近 24 小时可比范围变化 –·当前参与者 20
抗HER2治疗是靶向治疗的样板:HER2基因扩增与蛋白过表达见于25%至30%的乳腺癌,使肿瘤更具侵袭性;曲妥珠单抗联合化疗在转移性乳腺癌中将中位至疾病进展时间由4.6个月延长至7.4个月[2],在可手术HER2阳性早期乳腺癌的辅助治疗中同步联合化疗亦确立了获益[5]。分子层面,HER2富集亚型以HER2/磷酸化HER2/EGFR信号通路的特征性激活为标志[1];而在新辅助场景,pCR经汇总分析验证与EFS、OS相关,可作为长期获益的替代终点[6],这为解读会上另一条以pCR为终点的新辅助数据提供了参照。
本次ESMO26乳腺癌口头及优选论文环节的HER2主线落在HER2-low乳腺癌的ADC上:Barbara Pistilli就前三个摘要展开讨论,三者分别测试三种不同的HER2 ADC,却共享同一靶点、同一连接子、同一载荷类别。其中最受关注的是中国的TQB2102(双表位HER2 TOP1 ADC),在以HR+/HER2-low为主的转移性乳腺癌中报告PFS 16.4对比5.5个月、HR 0.29、p<0.01;发帖专家同时指出,双表位设计是否带来额外增益尚不清楚,HER2 TOP1赛道已相当拥挤且不乏优秀药物,HR+/HER2-转移性乳腺癌的ADC格局同样拥挤,最优序贯问题悬而未决。
同场另一条HER2相关读数偏阴性:一项汇总8项研究、2,529例患者的meta分析评估在紫杉类联合双HER2阻断的新辅助方案中加用卡铂,pCR率为62.2%对比61.7%,未见显著改善,所评估的临床亚组亦然。在pCR已被验证与长期转归相关的背景下[6],这提示双阻断时代常规加铂仍缺乏支持。neoHIP的讨论则显示免疫增敏的预测标志物尚未定型:pembro在ER+/HER2+人群中的获益仅见于高TIL或PD-L1+者,与IMpassion050中获益见于PD-L1-/HR+者的结果方向不同。
综合来看,TQB2102把抗HER2药物的作用范围从传统的扩增/过表达人群[2]推进到以HR+为主的HER2-low晚期乳腺癌;但局限同样清楚:该读数的样本量、试验分期与对照组具体方案在会议帖中未披露,双表位设计的增益存疑,而多种同类ADC之间的最优序贯、以及卡铂在当前新辅助治疗中的定位,都仍有待更成熟的数据回答。
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- 3.Trastuzumab in combination with chemotherapy versus chemotherapy alone for treatment of HER2-positive advanced gastric or gastro-oesophageal junction cancer (ToGA): a phase 3, open-label, randomised controlled trial · Lancet 2010
- 4.Gastric cancer · Lancet 2020
- 5.Trastuzumab plus adjuvant chemotherapy for operable HER2-positive breast cancer · N Engl J Med 2005
- 6.Pathological complete response and long-term clinical benefit in breast cancer: the CTNeoBC pooled analysis · Lancet 2014
Health-related quality of life from HER2CLIMB-05: A phase 3 study of tucatinib versus placebo in combination with trastuzumab and pertuzumab as 1L maintenance therapy for HER2+ mBC
https://esmocongress.esmo.orgSafety, social costs and quality of life (QOL) in HER2-positive (HER2+) breast cancer (BC) patients (pts) treated with pertuzumab + trastuzumab fixed-dose combination subcutaneous (PT FDC SC): The PERTURB study
https://esmocongress.esmo.orgA global, interventional, open-label trial of trastuzumab deruxtecan (T-DXd)–based therapy in first-line HER2-positive metastatic breast cancer: DESTINY-Breast Guide
https://esmocongress.esmo.orgEfficacy and safety of atirmociclib (ATI) + fulvestrant (FUL) in patients (pts) with HR+/HER2– advanced/metastatic breast cancer (mBC) who progressed on prior CDK4/6 inhibitor (CDK4/6i) in a randomized phase 2 study (FOURLIGHT-1)
https://esmocongress.esmo.orgGene-expression profiling of HR+/HER2- breast cancers arising in germline BRCA1/2 mutation carriers
https://esmocongress.esmo.orgOverall survival from the phase 3 postMONARCH trial of abemaciclib + fulvestrant vs placebo + fulvestrant for HR+, HER2- advanced breast cancer following progression on a prior CDK4/6 inhibitor + endocrine therapy
https://esmocongress.esmo.orgTQB2102, a novel HER2 bispecific antibody-drug conjugate, combined with bemotrizumab with or without capecitabine as first-line therapy for HER2-positive advanced gastric/gastroesophageal junction cancer: A phase II study
https://esmocongress.esmo.orgMitsuo Terada, MD, PhD@乳腺科医@MamMa_mimumemo Kristina Jankovic, MD@JankovicK 引用@OncoAlert 4Sight Abstracts to be Presented at #ESMO26 Retrospective Exploratory Biomarker Analyses From evERA Breast Cancer: A Phase III Trial of Giredestrant + Everolimus in Patients With Oestrogen Receptor-Positive, HER2-Negative Advanced Breast Cancer in the Post-CDK4/6 Inhibitor Setting 🎙️ Sara Tolaney @stolaney1 🔬 Exploratory biomarker analysis of phase III evERA (365 ctDNA-evaluable): giredestrant + everolimus vs SOC endocrine therapy + everolimus in post-CDK4/6i ER+, HER2– aBC. ➡️ PFS HR 0.52 (0.39–0.70) with cTF ≥1%; 0.61 (0.40–0.94) with cTF <1% ➡️ ESR1m: PFS HR 0.58 (D538) and 0.35 (Y537) ➡️ TP53m PFS HR 0.65 (0.45–0.93); PIK3CAm 0.55 (0.36–0.83) ✅ Giredestrant + everolimus maintained greater PFS benefit regardless of cTF status, with benefit across all ESR1 variants and poor prognostic subgroups. #BreastCancer (4Sight Made from Abstracts publicly available at the ESMO website) Pinging OncoAlert Breast Cancer Faculty @matteolambe @aftimosp @E_de_Azambuja @DrSGraff @ErikaHamilton9 @hoperugo @stolaney1 @BianchiniGP @aftimosp @kevinpunie @ElisaAgostinett @to_be_elizabeth @GaiaGriguolo @JankovicK @raalbany @JavierCortesMD @JaniceTNBCmets @Prof_Nadia_H @LoiSher @jamecancerdoc @Lucarecco @Dr_Oncologista @guiandri76
Matteo Lambertini, MD PhD@matteolambe Rodrigo Sánchez-Bayona@Rodrosb 引用@#ESMO26: Pembrolizumab plus chemotherapy reduced the risk of PFS by 26% in PD-L1-positive, HR-positive #AdvancedBreastCancer after failure on endocrine therapy in the phase III KEYNOTE-B49 🔗 https://ow.ly/5NoZ50ZZjCH #ClinicalTrial #BreastCancer #InsightsbyESMO @PTarantinoMD
Dana-Farber’s Breast Oncology Center@DFCI_BreastOnc Mitsuo Terada, MD, PhD@乳腺科医@MamMa_mimumemo Evandro de Azambuja, MD, PhD@E_de_Azambuja Dra. María Natalia Gandur Quiroga@nataliagandur 引用@OncoAlert 4Sight Abstracts to be Presented at #ESMO26 Retrospective Exploratory Biomarker Analyses From evERA Breast Cancer: A Phase III Trial of Giredestrant + Everolimus in Patients With Oestrogen Receptor-Positive, HER2-Negative Advanced Breast Cancer in the Post-CDK4/6 Inhibitor Setting 🎙️ Sara Tolaney @stolaney1 🔬 Exploratory biomarker analysis of phase III evERA (365 ctDNA-evaluable): giredestrant + everolimus vs SOC endocrine therapy + everolimus in post-CDK4/6i ER+, HER2– aBC. ➡️ PFS HR 0.52 (0.39–0.70) with cTF ≥1%; 0.61 (0.40–0.94) with cTF <1% ➡️ ESR1m: PFS HR 0.58 (D538) and 0.35 (Y537) ➡️ TP53m PFS HR 0.65 (0.45–0.93); PIK3CAm 0.55 (0.36–0.83) ✅ Giredestrant + everolimus maintained greater PFS benefit regardless of cTF status, with benefit across all ESR1 variants and poor prognostic subgroups. #BreastCancer (4Sight Made from Abstracts publicly available at the ESMO website) Pinging OncoAlert Breast Cancer Faculty @matteolambe @aftimosp @E_de_Azambuja @DrSGraff @ErikaHamilton9 @hoperugo @stolaney1 @BianchiniGP @aftimosp @kevinpunie @ElisaAgostinett @to_be_elizabeth @GaiaGriguolo @JankovicK @raalbany @JavierCortesMD @JaniceTNBCmets @Prof_Nadia_H @LoiSher @jamecancerdoc @Lucarecco @Dr_Oncologista @guiandri76
Mitsuo Terada, MD, PhD@乳腺科医@MamMa_mimumemo MBC Advocate@MBCadvocate Kazuki Nozawa, MD@kazuki_nozawa Guilherme Nader Marta@GuiNaderMarta Yakup Ergün@dr_yakupergun 引用@#ESMO26 | PREDICT-HER – Phase II Can we biopsy every metastatic lesion in breast cancer? No. But can we indirectly assess whole-body HER2 expression using HER2-PET? Possibly! In 89 patients receiving T-DXd, median PFS was 27.5 vs 13.6 months in HER2-PET-positive vs negative patients (HR 0.11). In HER2-low/zero patients, HER2-PET positivity had a 93.8% positive predictive value for response. An exciting approach to capturing HER2 heterogeneity and refining patient selection for T-DXd.
Mustafa Özdoğan, MD@ozdogan_md 引用@#ESMO26: Pembrolizumab plus chemotherapy reduced the risk of PFS by 26% in PD-L1-positive, HR-positive #AdvancedBreastCancer after failure on endocrine therapy in the phase III KEYNOTE-B49 🔗 https://ow.ly/5NoZ50ZZjCH #ClinicalTrial #BreastCancer #InsightsbyESMO @PTarantinoMD
Simone Nardin@nardin_simone Evandro de Azambuja, MD, PhD@E_de_Azambuja Yakup Ergün@dr_yakupergun Simone Nardin@nardin_simone Yakup Ergün@dr_yakupergun Science At BMS@ScienceAtBMS ScienceLink@sciencelinkonco Novartis Pro@NovartisPro MBC Advocate@MBCadvocate BeOne Medical Affairs@BeOneMedAffairs Dr Amol Akhade@SuyogCancer 由 Peter Fasching 博士制作的精彩幻灯片。HR阳性、HER2阴性乳腺癌(MBC)的发展领域。@myESMO #esmo2026
CancerTherapyAdvisor@CancerTherAdvsr Gaia Griguolo@GaiaGriguolo 在 #ESMO26 上关于 HER2 低表达乳腺癌新辅助 TDXd 研究的精彩讨论 @OncoAlert
AACR 2026 现场信号@ LUNGevity Foundation@LUNGevity Heather McArthur, MD, MPH, FASCO@hmcarthur David Page 出色地展示了我们 neoHIP IIT 的相关性分析,探讨在 HER2+ dz 中术前 THP 加入 #immunotherapy 的情况 #ESMO26