PMID- 34984540 OWN - NLM STAT- MEDLINE DCOM- 20220720 LR - 20230916 IS - 1432-0851 (Electronic) IS - 0340-7004 (Print) IS - 0340-7004 (Linking) VI - 71 IP - 8 DP - 2022 Aug TI - Safety, antitumor activity and biomarkers of sugemalimab in Chinese patients with advanced solid tumors or lymphomas: results from the first-in-human phase 1 trial. PG - 1897-1908 LID - 10.1007/s00262-021-03102-3 [doi] AB - BACKGROUND: This first-in-human phase 1 trial is to evaluate the safety, pharmacokinetics, preliminary efficacy, and biomarkers of sugemalimab, a full-length, fully human anti-PD-L1 monoclonal antibody, in Chinese patients with advanced malignancies. METHODS: Eligible patients with unresectable advanced or metastatic solid tumors or lymphomas were enrolled in phase 1a to receive sugemalimab following a modified 3 + 3 design. The primary endpoints included safety, tolerability, and the recommended Phase 2 dose (RP2D). In phase 1b, patients with 7 selected types of tumor received sugemalimab at the RP2D alone (monotherapy cohorts) or in combination with standard-of-care (SOC) chemotherapy (combination cohorts). The primary endpoint of phase 1b was investigator-assessed objective response rate (ORR). RESULTS: As of 19 February 2020, 29 and 178 patients were treated in phase 1a and 1b, respectively. No dose-limiting toxicities were observed in phase 1a, and the RP2D of sugemalimab was determined as 1200 mg fixed dose once every 3 weeks. Sugemalimab-related adverse events (AEs) were mostly (75.9%) grade 1-2 in phase 1a. Antitumor activity was observed across dose levels with an ORR of 24.1%. In phase 1b, 15.9% and 40.4% of patients in the monotherapy and combination cohorts, respectively, reported grade 3-5 sugemalimab-related AEs. Promising efficacy was observed in all combination cohorts, with ORRs ranging from 47.6 to 75.0%. Exploratory biomarker analysis did not indicate significant differences in responses at different PD-L1 expression/tumor mutation burden levels. CONCLUSIONS: Sugemalimab was well-tolerated and showed promising antitumor activity as monotherapy or in combination with SOC chemotherapy in advanced malignancies. This trial was registered with ClinicalTrials.gov on Oct 18, 2017, number NCT03312842. CI - (c) 2021. The Author(s). FAU - Gong, Jifang AU - Gong J AD - Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Gastrointestinal Oncology, Peking University Cancer Hospital & Institute, No. 52, Fucheng Road, Haidian District, Beijing, 100142, China. FAU - Cao, Junning AU - Cao J AD - Department of Medical Oncology, Fudan University Shanghai Cancer Center, Shanghai, China. FAU - Zhang, Qingyuan AU - Zhang Q AD - Department of Mammary and Lymphatic Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, China. FAU - Xu, Nong AU - Xu N AD - Department of Medical Oncology, The First Affiliated Hospital of Zhejiang University, Hangzhou, China. FAU - Zhao, Yanqiu AU - Zhao Y AD - Respiratory Department of Internal Medicine, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China. FAU - Xing, Baocai AU - Xing B AD - Department of Hepatobiliary and Pancreatic Surgery, Peking University Cancer Hospital & Institute, Beijing, China. FAU - Miao, Zhanhui AU - Miao Z AD - Department of Oncology, The First Affiliated Hospital of Xinxiang Medical University, Weihui, China. FAU - Wu, Yilong AU - Wu Y AD - Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital, Guangzhou, China. FAU - Pan, Hongming AU - Pan H AD - Department of Medical Oncology, Sir Run Run Shaw Hospital, Hangzhou, China. FAU - Gao, Quanli AU - Gao Q AD - Department of Biotherapy, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China. FAU - Li, Xingya AU - Li X AD - Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China. FAU - Liu, Baorui AU - Liu B AD - Department of Oncology, Nanjing Drum Tower Hospital, Nanjing, China. FAU - Li, Wei AU - Li W AD - Department of Oncology, The First Bethune Hospital of Jilin University, Changchun, China. FAU - Pei, Zhidong AU - Pei Z AD - Department of Oncology, Luoyang Central Hospital, Luoyang, China. FAU - Xia, Hongqiang AU - Xia H AD - CStone Pharmaceuticals (Suzhou) Co., Ltd, Suzhou, China. FAU - Qi, Qinzhou AU - Qi Q AD - CStone Pharmaceuticals (Suzhou) Co., Ltd, Suzhou, China. FAU - Dai, Hangjun AU - Dai H AD - CStone Pharmaceuticals (Suzhou) Co., Ltd, Suzhou, China. FAU - Shi, Qingmei AU - Shi Q AD - CStone Pharmaceuticals (Suzhou) Co., Ltd, Suzhou, China. FAU - Yang, Jianxin AU - Yang J AD - CStone Pharmaceuticals (Suzhou) Co., Ltd, Suzhou, China. FAU - Li, Jin AU - Li J AD - Department of Oncology, Shanghai East Hospital, Tongji University School of Medicine, No. 150, Jimo Road, Pudong New District, Shanghai, 200120, China. lijin@csco.org.cn. FAU - Shen, Lin AU - Shen L AUID- ORCID: 0000-0003-1134-2922 AD - Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Gastrointestinal Oncology, Peking University Cancer Hospital & Institute, No. 52, Fucheng Road, Haidian District, Beijing, 100142, China. shenlin@bjmu.edu.cn. LA - eng SI - ClinicalTrials.gov/NCT03312842 GR - No. 2017YFC1308900/National Key Research and Development Program of China/ PT - Clinical Trial, Phase I PT - Journal Article DEP - 20220105 PL - Germany TA - Cancer Immunol Immunother JT - Cancer immunology, immunotherapy : CII JID - 8605732 RN - 0 (Antibodies, Monoclonal) RN - 0 (Antibodies, Monoclonal, Humanized) RN - 0 (Biomarkers, Tumor) RN - 0 (Immune Checkpoint Inhibitors) SB - IM MH - Antibodies, Monoclonal/adverse effects/therapeutic use MH - Antibodies, Monoclonal, Humanized/adverse effects/therapeutic use MH - Antineoplastic Combined Chemotherapy Protocols/adverse effects/therapeutic use MH - Biomarkers, Tumor MH - China MH - Humans MH - Immune Checkpoint Inhibitors/adverse effects/therapeutic use MH - *Lymphoma/drug therapy MH - *Neoplasms/pathology PMC - PMC9293819 OTO - NOTNLM OT - Immunotherapy OT - PD-L1 OT - Solid tumor OT - Sugemalimab COIS- Dr. Y. Wu reported receiving honoraria from AstraZeneca, Eli Lilly and Company, Pfizer, Roche, and Sanofi. H. Xia, Q. Qi, H. Dai, Q. Shi, and J. Yang are paid employees of CStone Pharmaceuticals. Other authors declared no conflict of interest. EDAT- 2022/01/06 06:00 MHDA- 2022/07/22 06:00 PMCR- 2022/01/05 CRDT- 2022/01/05 06:03 PHST- 2021/05/25 00:00 [received] PHST- 2021/10/27 00:00 [accepted] PHST- 2022/01/06 06:00 [pubmed] PHST- 2022/07/22 06:00 [medline] PHST- 2022/01/05 06:03 [entrez] PHST- 2022/01/05 00:00 [pmc-release] AID - 10.1007/s00262-021-03102-3 [pii] AID - 3102 [pii] AID - 10.1007/s00262-021-03102-3 [doi] PST - ppublish SO - Cancer Immunol Immunother. 2022 Aug;71(8):1897-1908. doi: 10.1007/s00262-021-03102-3. Epub 2022 Jan 5.