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2022-12-28

恒瑞創新藥卡瑞利珠單抗治療復發轉移性宮頸癌研究成果登上《自然》子刊

近日,由復旦大學附屬腫瘤醫院吳小華教授牽頭開展的“卡瑞利珠單抗聯合蘋果酸法米替尼治療復發轉移性宮頸鱗狀細胞癌的II期臨床研究”結果發表于國際知名雜志《自然》雜志子刊《自然·通訊》(Nature Communications,IF 17.694)[1] ,研究(jiu)結果(guo)顯示(shi)ORR達(da)(da)到(dao)39.4%,中位PFS達(da)(da)到(dao)10.3個月,12個月OS率(lv)為(wei)77.7%,且(qie)安全性可接受,為(wei)復(fu)發(fa)轉移性宮頸癌(ai)提(ti)供(gong)新的治(zhi)療組(zu)合。


《卡(ka)瑞利珠(zhu)單(dan)抗(kang)聯合蘋果酸(suan)法米替尼治療復(fu)發轉移性宮頸鱗狀細胞(bao)癌的II期臨床研(yan)究》發表于Nature Communications


研究背景


針對無法通過局部根治性手術或放療的復發轉移性宮頸癌患者,首選含鉑化療聯合貝伐珠單抗,但大多數患者治療后仍會出現疾病進展[2]。基于KEYNOTE-158研究,FDA批準帕博利珠單抗用于治療化療后進展的、PD-L1表達陽性(CPS≥1)的復發或轉移性宮頸癌,其ORR為14.3%[3]。西米普利單抗和那武利尤單抗治療既往治療失敗的復發轉移性宮頸癌療效有限,其ORR分別為16.4%和26.3%[4-5]。抗PD-1抗體聯(lian)合(he)其他(ta)藥物治(zhi)療(liao)既往(wang)治(zhi)療(liao)失敗的復發轉(zhuan)移(yi)(yi)性宮頸(jing)癌(ai)患(huan)者ORR在0%-31.8%[6-9],提(ti)示抗PD-1/PD-L1抗體聯(lian)合(he)治(zhi)療(liao)有(you)望進一步提(ti)高復發轉(zhuan)移(yi)(yi)性宮頸(jing)癌(ai)的療(liao)效。


法米替(ti)尼(ni)是由恒瑞自主研發的小分(fen)子(zi)多靶點酪(lao)氨酸激酶抑制劑。本(ben)研究探索卡瑞利(li)珠(zhu)單抗聯(lian)合蘋果酸法米替(ti)尼(ni)治(zhi)療復(fu)發轉(zhuan)移性宮頸鱗狀細胞癌的療效和(he)安全性。


研究設計


本研(yan)究(jiu)為(wei)多中(zhong)心、開放、單(dan)臂的(de)Ⅱ期臨床試驗,旨在(zai)評(ping)價卡(ka)瑞(rui)利(li)珠(zhu)單(dan)抗(kang)(kang)聯(lian)合(he)蘋(pin)果(guo)酸法米替(ti)尼(ni)治療(liao)晚(wan)期泌尿(niao)系統(tong)腫瘤和婦科腫瘤患者(zhe)的(de)有效性(xing)和安全性(xing)。隊(dui)列5入組(zu)復發轉移(yi)階段經過1-2線(xian)系統(tong)治療(liao)失敗的(de)宮頸鱗狀細胞癌患者(zhe),接受卡(ka)瑞(rui)利(li)珠(zhu)單(dan)抗(kang)(kang)(200mg 每(mei)3周一次(ci))聯(lian)合(he)蘋(pin)果(guo)酸法米替(ti)尼(ni)(20mg 每(mei)日一次(ci))治療(liao)。主要研(yan)究(jiu)終點為(wei)基于RECIST 1.1標(biao)準評(ping)估的(de)客觀緩解率(ORR)。


圖1 研(yan)究設(she)計


研究結果


本研究共(gong)入組(zu)33例(li)復發轉(zhuan)移性宮頸(jing)鱗狀細胞癌(ai)患(huan)(huan)者。19例(li)患(huan)(huan)者接受(shou)(shou)PD-L1檢測,其(qi)中(zhong)10例(li)患(huan)(huan)者PD-L1表達陽(yang)性,9例(li)患(huan)(huan)者表達陰(yin)性。33例(li)患(huan)(huan)者既往均接受(shou)(shou)過紫杉類系(xi)統(tong)治(zhi)療,32例(li)患(huan)(huan)者既往接受(shou)(shou)過含鉑系(xi)統(tong)治(zhi)療。


表1 患(huan)者基線特征(zheng)


截止2021年6月(yue)(yue)8日,中位(wei)隨訪(fang)時(shi)間為(wei)(wei)13.6個(ge)月(yue)(yue)(IQR:10.0-23.6個(ge)月(yue)(yue)),11例患(huan)(huan)者繼(ji)續(xu)接受(shou)治療中。總人群(qun)的(de)(de)ORR為(wei)(wei)39.4% (95% CI:22.9-57.9),DCR為(wei)(wei)69.7% (95% CI:51.3-84.4)。PD-L1表達陽性(xing)的(de)(de)患(huan)(huan)者ORR為(wei)(wei)40.0%(95% CI:12.2-73.8),DCR為(wei)(wei)80.0%(95% CI:44.4-97.5)。PD-L1表達陰性(xing)的(de)(de)患(huan)(huan)者ORR為(wei)(wei)33.3%(95% CI:7.5-70.1),DCR為(wei)(wei)55.6%(95% CI:21.2-86.3)。


圖2 靶病灶大小的最佳變化


中位(wei)DOR尚(shang)未達到,12個(ge)月的DOR率(lv)為74.1% (95% CI:39.1-90.9)。


圖3 DOR的K-M曲線


中位PFS為10.3個月(95% CI:3.5-NR),中位OS尚未達到,12個月的OS率(lv)為77.7%(95% CI:58.9-88.7)。


圖4 PFS和OS的K-M曲線


研究總結


本研究結果顯(xian)示(shi),卡瑞利(li)珠單抗聯合蘋果酸(suan)法米(mi)替尼在既(ji)往系(xi)統治(zhi)療(liao)失敗的(de)(de)復發(fa)(fa)轉(zhuan)移性宮頸鱗狀細(xi)胞癌(ai)患(huan)者(zhe)中(zhong)顯(xian)示(shi)出持(chi)續的(de)(de)抗腫(zhong)瘤效果和可控的(de)(de)安全性,為復發(fa)(fa)轉(zhuan)移性宮頸癌(ai)提(ti)供(gong)新的(de)(de)治(zhi)療(liao)選擇。


參(can)考文獻(xian):

[1] Xia, L., Zhou, Q., Gao, Y. et al. A multicenter phase 2 trial of camrelizumab plus famitinib for women with recurrent or metastatic cervical squamous cell carcinoma. Nat Commun 13, 7581 (2022). //doi.org/10.1038/s41467-022-35133-4.

[2] National Comprehensive Cancer Network. NCCN clinical practice guidelines in oncology. Cervical cancer. Version 1. //www.nccn.org/professionals/physician_gls/pdf/cervical.pdf (Accessed November 16, 2021) (2022).

[3] Chung, H. C. et al. Efficacy and safety of pembrolizumab in previously treated advanced cervical cancer: results from the phase II KEYNOTE-158 study. J. Clin. Oncol. 37, 1470–1478 (2019).

[4] Tewari, K. S. et al. Survival with cemiplimab in recurrent cervical cancer. N. Engl. J. Med. 386, 544–555 (2022).

[5] Naumann, R. W. et al. Safety and efficacy of nivolumab monotherapy in recurrent or metastatic cervical, vaginal, or vulvar carcinoma: results from the phase I/II checkMate 358 trial. J. Clin.Oncol. 37, 2825–2834 (2019).

[6] O’Malley, D. M. et al. LBA34 Single-agent anti-PD-1 balstilimab or in combination with anti-CTLA-4 zalifrelimab for recurrent/metastatic (R/M) cervical cancer (CC): preliminary results of two independent phase II trials. Ann. Oncol. 31, S1164–S1165 (2020).

[7] Naumann, R. W. et al. LBA62 - Efficacy and safety of nivolumab (Nivo) + ipilimumab (Ipi) in patients (pts) with recurrent/metastatic (R/M) cervical cancer: results fromCheckMate 358. Ann. Oncol. 30, v898–v899 (2019).

[8] Oaknin, A. et al. LIO-1: Initial Phase 2 Experience of Lucitanib + Nivolumab in PatientsWithMetastatic or Recurrent Cervical Cancer (NCT04042116; ENGOT-GYN3/AGO/LIO). Society of Gynecologic Oncology. //clovisoncology.com/files/SGO2022_Oaknin_Oral.pdf (Accessed August 16, 2022) (2021)

[9] Friedman, C. F. et al. Phase II study of atezolizumab in combination with bevacizumab in patients with advanced cervical cancer. J. Immunother. Cancer //doi.org/10.1136/jitc-2020-001126 (2020).


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