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      A phase II study of anti–PD-1 antibody camrelizumab plus FOLFOX4 or GEMOX systemic chemotherapy as first-line therapy for advanced hepatocellular carcinoma or biliary tract cancer.

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          Abstract

          4074

          Background: Advanced hepatocellular carcinoma (HCC) and biliary tract cancer (BTC) patients (pts) have very limited treatment options. Considering the immunogenic effects of oxaliplatin, combination of camrelizumab with oxaliplatin-based chemotherapy might bring a better clinical benefit. Methods: That was an ongoing single-arm, multicenter phase 2 trial. Advanced HCC or BTC pts naive to systemic treatment were given camrelizumab (3 mg/kg i.v., every 2 weeks) plus typical FOLFOX4 (infusional fluorouracil, leucovorin and oxaliplatin) or GEMOX (gemcitabine and oxaliplatin) regimen. Primary endpoints were confirmed objective response rate (ORR) per RECIST v1.1 and safety per CTC AE 4.03. Results: From Apr 27, 2017 to Oct 31, 2018, 34 Chinese HCC and 47 BTC pts were treated, in which 27 (79.4%) HCC and 17 (36.2%) BTC pts were HBV-infected. In the 34 evaluable HCC pts, confirmed ORR was 26.5% and disease control rate (DCR) was 79.4%. Median time to response (TTR) was 2.0 mo (range 1.5–5.7). Six of the 9 responses were still ongoing, and median duration of response (DoR) was not reached (range 3.3–11.5 + mo). Median progression-free survival (PFS) was 5.5 mo. At data cutoff, 61.7% BTC pts were still receiving study drug. In the 43 evaluable BTC pts, with a median duration of exposure of 2.9 mo, confirmed ORR was 7.0% and DCR was 67.4%. Median TTR was 1.9 mo (range 1.8–2.1). Median DoR was 5.3 mo (range 3.7–7.0). Median PFS was not reached yet. Median estimates for overall survival in both HCC and BTC were also not reached. Grade ≥3 treatment-related adverse events (TRAEs) occurred in 85.3% of HCC and 57.4% of BTC pts, most commonly neutrophil count decreased (HCC: 55.9%; BTC: 29.8%), white blood cell decreased (HCC: 38.2%; BTC: 21.3%), platelet count decreased (HCC: 17.6%; BTC: 12.8%), and anaphylaxis (BTC: 19.1%). Only one BTC pt stopped treatment due to a TRAE (recurrent Grade 2 anemia related to FOLFOX4). Grade ≥3 immune-related AEs occurred only in 5.9% of HCC (lipase increased) and 3.8% of BTC pts (anaphylaxis). Conclusions: Camrelizumab plus FOLFOX4 or GEMOX chemotherapy was tolerable and might offer a new promising choice for advanced HCC and BTC pts. Clinical trial information: NCT03092895.

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          Author and article information

          Journal
          Journal of Clinical Oncology
          JCO
          American Society of Clinical Oncology (ASCO)
          0732-183X
          1527-7755
          May 20 2019
          May 20 2019
          : 37
          : 15_suppl
          : 4074
          Affiliations
          [1 ]Jinling Hospital, Nanjing, China;
          [2 ]Department of Medical Oncology, The Second Hospital of Anhui Medical University, Hefei, China;
          [3 ]Department of Medical Oncology, Henan Cancer Hospital, Zhengzhou, China;
          [4 ]Department of Medical Oncology, The First Affiliated Hospital of Nanchang University, Nanchang, China;
          [5 ]Department of Medical Oncology, Zhongshan Hospital, Fudan University, Shanghai, China;
          [6 ]Department of Traditional Chinese Medicine, Fudan University Shanghai Cancer Center, Shanghai, China;
          [7 ]Department of Interventional Radiology, Hunan Cancer Hospital, Changsha, China;
          [8 ]Jiangsu Hengrui Medicine Co. Ltd, Shanghai, China;
          Article
          10.1200/JCO.2019.37.15_suppl.4074
          b0d91ce7-ed72-4ff6-8ad2-88e5de63d718
          © 2019
          History

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