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Proffered Paper session 1: GI, upper digestive

LBA35 - Camrelizumab (C) plus rivoceranib (R) vs. sorafenib (S) as first-line therapy for unresectable hepatocellular carcinoma (uHCC): A randomized, phase III trial

Date

10 Sep 2022

Session

Proffered Paper session 1: GI, upper digestive

Topics

Hepatobiliary Cancers

Presenters

Shukui Qin

Citation

Annals of Oncology (2022) 33 (suppl_7): S808-S869. 10.1016/annonc/annonc1089

Authors

S. Qin1, L.S. Chan2, S. Gu3, Y. Bai4, Z. Ren5, X. Lin6, Z. Chen7, W. Jia8, Y. Jin9, Y. Guo10, A.V. Sultanbaev11, M. Pazgan-Simon12, M. Pisetska13, X. Liang14, C. Chen14, Z. Nie14, L. Wang14, A. Cheng15, A. Kaseb16, A. Vogel17

Author affiliations

  • 1 Cancer Center Of Jinling Hospital, Nanjing University of Chinese Medicine, 210002 - Nanjing/CN
  • 2 Department Of Clinical Oncology, The Chinese University of Hong Kong Medical Center, Sha Tin/HK
  • 3 Department Of Interventional Radiology, Hunan Cancer Hospital, Changsha/CN
  • 4 Department Of Gastroenterology, The Affiliated Tumor Hospital of Harbin Medical University, 150081 - Harbin/CN
  • 5 Department Of Hepatic Oncology, Zhongshan Hospital Affiliated to Fudan University, 200032 - Shanghai/CN
  • 6 Department Of Oncology, Fujian Medical University Union Hospital, 350001 - Fuzhou/CN
  • 7 Department Of Oncology, The Second Affiliated Hospital of Anhui Medical University, 230601 - Hefei/CN
  • 8 Department Of General Surgery, The First Affiliated Hospital of USTC/ Anhui Provincial Hospital, 230001 - Hefei/CN
  • 9 Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, 610041 - Chengdu/CN
  • 10 Department Of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou/CN
  • 11 Department Of Antitumor Drug Therapy, Republican Clinical Oncological Dispensary of the Ministry of Health of the Republic of Bashkortostan, 450054 - Ufa/RU
  • 12 Department Of Infecious Disease And Hepatology, Wroclaw Medical University, and Centrum Badań Klinicznych P.Napora, Wroclaw/PL
  • 13 Department Of Liver And Pancreas Gland Oncosurgery, Communal Non-profit Enterprise Regional Center of Oncology, 61070 - Kharkiv/UA
  • 14 Department Of Clinical Development, Jiangsu Hengrui Pharmaceuticals Co., Ltd., 200120 - Shanghai/CN
  • 15 Department Of Oncology, National Taiwan University Hospital, 10002 - Taipei City/TW
  • 16 Department Of Gastrointestinal Medical Oncology, The University of Texas M. D. Anderson Cancer Center, 77030 - Houston/US
  • 17 Department Of Gastroenterology, Hepatology And Endocrinology, Hannover Medical School, Hannover/DE
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Resources

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Abstract LBA35

Background

The benefits of immunotherapy plus an anti-angiogenic TKI in uHCC are unclear. This study aimed to assess C (Camrelizumab; anti-PD-1 IgG4 monoclonal antibody) + R (Rivoceranib, Apatinib; VEGFR2-TKI) vs. S (Sorafenib) as first-line treatment for uHCC.

Methods

In this international, randomized, open-label, phase III trial, eligible patients (pts) were randomized 1:1 to receive C (200 mg, iv, q2w) + R (250 mg, po, qd) or S (400 mg, po, bid). Pts were stratified by macrovascular invasion and/or extrahepatic metastases, geographical region (Asia vs. non-Asia), and baseline serum AFP (<400 vs. ≥ 400 ng/mL). The primary endpoints were PFS per RECIST v1.1 criteria by BIRC as well as OS. The primary analysis for PFS was done after 339 PFS events occurred (May 10, 2021) and the planned interim analysis of OS was done after 262 deaths occurred (Feb 8, 2022).

Results

A total of 543 pts (ITT population) were randomized to receive C+R (N=272) or S (N=271) respectively. With a median follow-up time of 7.8 mo, PFS was significantly improved with C+R vs. S (median 5.6 mo [95% CI 5.5-6.3] vs. 3.7 mo [2.8-3.7]; HR 0.52 [95% CI 0.41-0.65]); 1-sided p<0.0001). With a median follow-up of 14.5 mo, OS was significantly prolonged with C+R vs. S (median 22.1 mo [95% CI 19.1-27.2] vs. 15.2 mo [13.0-18.5]; HR 0.62 [95% CI 0.49-0.80]; 1-sided p<0.0001). ORR, DCR and DoR were also better with C+R vs. S (Table). A pre-specified subgroup analysis showed that HRs of PFS and OS obviously favored C+R in the majority of the subgroups. Grade ≥3 TRAEs occurred in 80.9% with C+R and 52.4% with S. TRAE led to discontinuation of any treatment in 24.3% (of both agents in 3.7%) with C+R and 4.5% with S. Fatal TRAE occurred in 1 pt in each arm. Table: LBA35

Summary of efficacy outcomes

C+R (N=272) S (N=271) 1-sided p -value
Median OS (95% CI), mo 22.1 (19.1-27.2) 15.2 (13.0-18.5) -
HR (95% CI) 0.62 (0.49-0.80) <0.0001*
Median PFS (95% CI), mo 5.6 (5.5-6.3) 3.7 (2.8-3.7) -
HR (95% CI) 0.52 (0.41-0.65) <0.0001*
Confirmed ORR (95% CI), % 25.4 (20.3-31.0) 5.9 (3.4-9.4) <0.0001†
Median DoR (95% CI), mo 14.8 (8.4-NR) 9.2 (5.3-NR) -
DCR (95% CI), % 78.3 (72.9-83.1) 53.9 (47.7-59.9) -
Median TTP (95% CI), mo 7.2 (5.6-8.2) 3.7 (3.6-3.7) -

All assessed by BIRC per RECIST v1.1 except for OS. Data cutoff was May. 10, 2021 for PFS and Feb. 8, 2022 for other outcomes. * Stratified log-rank test. † Stratified Cochran-Mantel-Haenszel test. NR=not reached.

Conclusions

C+R significantly prolonged PFS and OS and improved ORR vs. S, and presents as a new first-line treatment option for uHCC. This is the first positive pivotal trial to show survival benefits with a PD-1/PD-L1 inhibitor plus an anti-angiogenic TKI for uHCC.

Clinical trial identification

NCT03764293.

Editorial acknowledgement

Editorial assistance was provided by Xiuzhi Wu, PhD (Hengrui Pharmaceuticals).

Legal entity responsible for the study

Jiangsu Hengrui Pharmaceuticals & Elevar Therapeutics Inc.

Funding

Jiangsu Hengrui Pharmaceuticals Co.Ltd & Elevar Therapeutics Inc.

Disclosure

X. Liang: Financial Interests, Personal, Full or part-time Employment: Hengrui Pharmaceuticals. C. Chen: Financial Interests, Personal, Full or part-time Employment: Hengrui Pharmaceuticals. Z. Nie: Financial Interests, Personal, Full or part-time Employment: Hengrui Pharmaceuticals. L. Wang: Financial Interests, Personal, Full or part-time Employment: Hengrui Pharmaceuticals. All other authors have declared no conflicts of interest.

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