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A Phase II Study of Cabozantinib and Androgen Ablation in Patients with Hormone-Naïve Metastatic Prostate Cancer.
Clinical Cancer Research ( IF 10.0 ) Pub Date : 2020-03-01 , DOI: 10.1158/1078-0432.ccr-19-2389
Paul G Corn 1 , Miao Zhang 2 , Graciela M Nogueras-Gonzalez 3 , Lianchun Xiao 3 , Amado J Zurita 1 , Sumit K Subudhi 1 , Shi-Ming Tu 1 , Ana M Aparicio 1 , Cristian Coarfa 4 , Kimal Rajapakshe 4 , Shixia Huang 5 , Nora M Navone 1 , Sue-Hwa Lin 6 , Guocan Wang 1 , Sumankalai Ramachandran 1 , Mark A Titus 1 , Theocharis Panaretakis 1 , Gary E Gallick 1 , Eleni Efstathiou 1 , Patricia Troncoso 2 , Christopher Logothetis 1
Affiliation  

PURPOSE Cabozantinib, an oral inhibitor of c-MET/VEGFR2 signaling, improved progression-free survival (mPFS) but not overall survival (OS) in metastatic castrate-resistant prostate cancer. We evaluated cabozantinib plus androgen deprivation therapy (ADT) in hormone-naïve metastatic prostate cancer (HNMPCa). PATIENTS AND METHODS Patients received ADT plus cabozantinib starting at 60 mg daily. The primary endpoint was castrate-resistant PFS by radiographic criteria, clinical progression, or receipt of additional therapy. Secondary endpoints included OS, safety, radiographic responses, and biomarker modulation. RESULTS Sixty-two patients received treatment. With a median follow-up of 31.2 months, the mPFS was 16.1 months (95% CI, 14.6-22.7 months), and mOS was not reached. Reductions in PSA ≥ 90%, bone-specific alkaline phosphatase ≥ 50%, and urine N-telopeptides ≥ 50% occurred in 83%, 87%, and 86% of evaluable patients, respectively. Responses in bone scan and measurable disease were observed in 81% of and 90% of evaluable patients, respectively. Most common grade 3 adverse events were hypertension (19%), diarrhea (6%), and thromboembolic events (6%), and dose reductions occurred in 85% of patients. Analysis of baseline cytokine and angiogenic factors (CAFs) revealed that higher plasma concentrations of Lumican, CXCL5, CD25, and CD30 were associated with shorter PFS as was high tumor expression of pFGFR1. CONCLUSIONS Cabozantinib plus ADT has promising clinical activity in HNMPCa. CAF profiles and tissue markers suggest candidate prognostic and predictive markers of cabozantinib benefit and provide insights for rational therapy combinations.

中文翻译:

卡博替尼和雄激素消融在未经激素治疗的转移性前列腺癌患者中的II期研究。

目的卡博替尼是一种口服c-MET / VEGFR2信号抑制剂,可改善转移性去势抵抗性前列腺癌的无进展生存期(mPFS),但不能改善总生存期(OS)。我们评估了卡博替尼加雄激素剥夺疗法(ADT)在未经激素治疗的转移性前列腺癌(HNMPCa)中的应用。患者与方法患者每天60 mg开始接受ADT加卡博替尼治疗。主要终点是根据影像学标准,临床进展或接受其他治疗而获得的去势抵抗性PFS。次要终点包括OS,安全性,射线照相反应和生物标志物调制。结果62例患者接受了治疗。中位随访31.2个月,mPFS为16.1个月(95%CI,14.6-22.7个月),未达到mOS。PSA降低90%以上,骨特异性碱性磷酸酶降低50​​%以上,分别有83%,87%和86%的患者发生尿液和尿液N端肽≥50%。分别在81%和90%的可评估患者中观察到了骨扫描和可测量疾病的反应。最常见的3级不良事件为高血压(19%),腹泻(6%)和血栓栓塞事件(6%),且85%的患者降低了剂量。对基线细胞因子和血管生成因子(CAF)的分析显示,较高的Lumican,CXCL5,CD25和CD30血浆浓度与较短的PFS相关,pFGFR1的肿瘤高表达也与之相关。结论卡波替尼加ADT在HNMPCa中具有良好的临床活性。CAF概况和组织标志物提示卡博替尼有益的候选预后和预测标志物,并为合理的治疗组合提供了见识。分别有87%和86%的可评估患者。分别在81%和90%的可评估患者中观察到了骨扫描和可测量疾病的反应。最常见的3级不良事件为高血压(19%),腹泻(6%)和血栓栓塞事件(6%),且85%的患者降低了剂量。对基线细胞因子和血管生成因子(CAF)的分析显示,较高的Lumican,CXCL5,CD25和CD30血浆浓度与较短的PFS相关,pFGFR1的肿瘤高表达也与之相关。结论卡波替尼加ADT在HNMPCa中具有良好的临床活性。CAF概况和组织标志物提示卡博替尼有益的候选预后和预测标志物,并为合理的治疗组合提供了见识。分别有87%和86%的可评估患者。分别在81%和90%的可评估患者中观察到了骨扫描和可测量疾病的反应。最常见的3级不良事件为高血压(19%),腹泻(6%)和血栓栓塞事件(6%),并且85%的患者降低了剂量。对基线细胞因子和血管生成因子(CAF)的分析显示,较高的Lumican,CXCL5,CD25和CD30血浆浓度与较短的PFS相关,pFGFR1的肿瘤高表达也与之相关。结论卡波替尼加ADT在HNMPCa中具有良好的临床活性。CAF概况和组织标志物提示卡博替尼有益的候选预后和预测标志物,并为合理的治疗组合提供了见识。分别在81%和90%的可评估患者中观察到了骨扫描和可测量疾病的反应。最常见的3级不良事件为高血压(19%),腹泻(6%)和血栓栓塞事件(6%),并且85%的患者降低了剂量。对基线细胞因子和血管生成因子(CAF)的分析显示,较高的Lumican,CXCL5,CD25和CD30血浆浓度与较短的PFS相关,pFGFR1的肿瘤高表达也与之相关。结论卡波替尼加ADT在HNMPCa中具有良好的临床活性。CAF概况和组织标志物提示卡博替尼有益的候选预后和预测标志物,并为合理的治疗组合提供了见识。分别在81%和90%的可评估患者中观察到了骨扫描和可测量疾病的反应。最常见的3级不良事件为高血压(19%),腹泻(6%)和血栓栓塞事件(6%),并且85%的患者降低了剂量。对基线细胞因子和血管生成因子(CAF)的分析显示,较高的Lumican,CXCL5,CD25和CD30血浆浓度与较短的PFS相关,pFGFR1的肿瘤高表达也与之相关。结论卡波替尼加ADT在HNMPCa中具有良好的临床活性。CAF概况和组织标志物提示卡博替尼有益的候选预后和预测标志物,并为合理的治疗组合提供了见识。腹泻(6%)和血栓栓塞事件(6%),且85%的患者出现剂量减少。对基线细胞因子和血管生成因子(CAF)的分析显示,较高的Lumican,CXCL5,CD25和CD30血浆浓度与较短的PFS相关,pFGFR1的肿瘤高表达也与之相关。结论卡波替尼加ADT在HNMPCa中具有良好的临床活性。CAF概况和组织标志物提示卡博替尼有益的候选预后和预测标志物,并为合理的治疗组合提供了见识。腹泻(6%)和血栓栓塞事件(6%),且85%的患者出现剂量减少。对基线细胞因子和血管生成因子(CAF)的分析显示,较高的Lumican,CXCL5,CD25和CD30血浆浓度与较短的PFS相关,pFGFR1的肿瘤高表达也与之相关。结论卡波替尼加ADT在HNMPCa中具有良好的临床活性。CAF资料和组织标志物提示卡博替尼有益的预后和预测性标志物,并为合理的治疗组合提供了见识。结论卡波替尼加ADT在HNMPCa中具有良好的临床活性。CAF概况和组织标志物提示卡博替尼有益的候选预后和预测标志物,并为合理的治疗组合提供了见识。结论卡波替尼加ADT在HNMPCa中具有良好的临床活性。CAF资料和组织标志物提示卡博替尼有益的预后和预测性标志物,并为合理的治疗组合提供了见识。
更新日期:2020-04-21
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