PMID- 34692475 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220427 IS - 2234-943X (Print) IS - 2234-943X (Electronic) IS - 2234-943X (Linking) VI - 11 DP - 2021 TI - Anlotinib Combined With Anti-PD-1 Antibodies Therapy in Patients With Advanced Refractory Solid Tumors: A Single-Center, Observational, Prospective Study. PG - 683502 LID - 10.3389/fonc.2021.683502 [doi] LID - 683502 AB - INTRODUCTION: Anlotinib (AL3818) is a novel multi-target tyrosine kinase inhibitor (TKI) targeting vascular endothelial growth factor receptor (VEGFR) and suppressing tumor growth. Modulation of tumor suppressive immune microenvironment via the inhibition of vascular endothelial growth factor may augment the activity of immune checkpoint inhibitors. Here we described the results of safety, and clinical efficacy of anlotinib combined with immunotherapy in patients with advanced solid tumors, the serum cytokine levels, and peripheral blood T lymphocyte populations were detected simultaneously. METHODS: Twenty six cases with advanced late-stage cancers including lung, gallbladder, endometrial, gastric, pancreatic, penile cancers and melanoma were treated since January 2019. Patients received a combination of anlotinib (12mg) once daily on day 1 to day 14 (21 days as a course) plus anti-PD-1 antibodies every 3 weeks until progression or intolerable toxicity. Imaging was performed every 6 weeks for the first year of therapy. Blood samples were collected from patients prospectively. Serum interleukin (IL)-2, IL-4, IL-6, IL-10, Tumor necrosis factor-alpha (TNF-alpha), interferon-gamma (IFN-gamma) and circulating immune cell subsets were measured at baseline and after two cycles of treatment via flow cytometry. RESULTS: There were ten tumor types enrolled with lung, gallbladder, cholangiocarcinoma and soft tissue sarcoma being the most common. Most patients had received front line treatments for metastatic disease (80.8%). The objective response rate (ORR) was 23.1%, including one complete response (CR) (3.8%) and five partial responses (PR) (19.2%) and a disease control rate (DCR=CR+PR+SD) of 80.8% (21 of 26). The median PFS was 8.37 months (95% CI: 6.5-10.0 months). Three patients (11.5%) had grade 3 treatment-related adverse events. There were no grade 4 or 5 treatment-related adverse events. Grades 3 toxicities included hand-foot syndrome (n=2) and hypertension (n=1). Higher serum IL-2, IL-4, IL-10, TNF-alpha, IFN-gamma levels and lower ratios of CD4/CD8 T cells were found in the responders compared with non-responders. CONCLUSIONS: The preliminary data showed that the combination of anlotinib and anti-PD-1 antibodies demonstrated promising durable antitumor efficacy with acceptable toxicity in patients with various advance tumors, and promoted favorable changes in serum IL-2, IL-4, IL-10, TNF-alpha, IFN-gamma levels and circulating immune cell subsets in clinical responders. It is worth to further validate the efficacy in a randomized prospective trial. CI - Copyright (c) 2021 Yuan, Zhu, Mao, Wang, Qian, Wu, Guo and Xu. FAU - Yuan, Min AU - Yuan M AD - Department of Oncology, Shanghai Tenth People's Hospital, Tongji University, Shanghai, China. FAU - Zhu, Zhongzheng AU - Zhu Z AD - Department of Oncology, Shanghai Tenth People's Hospital, Tongji University, Shanghai, China. FAU - Mao, Wei AU - Mao W AD - Department of Oncology, Shanghai Tenth People's Hospital, Tongji University, Shanghai, China. FAU - Wang, Hui AU - Wang H AD - Department of Oncology, Shanghai Tenth People's Hospital, Tongji University, Shanghai, China. FAU - Qian, Hong AU - Qian H AD - Department of Oncology, Shanghai Tenth People's Hospital, Tongji University, Shanghai, China. FAU - Wu, Jianguo AU - Wu J AD - Department of Oncology, Shanghai Tenth People's Hospital, Tongji University, Shanghai, China. FAU - Guo, Xianling AU - Guo X AD - Department of Oncology, Shanghai Tenth People's Hospital, Tongji University, Shanghai, China. FAU - Xu, Qing AU - Xu Q AD - Department of Oncology, Shanghai Tenth People's Hospital, Tongji University, Shanghai, China. LA - eng PT - Journal Article DEP - 20211007 PL - Switzerland TA - Front Oncol JT - Frontiers in oncology JID - 101568867 EIN - Front Oncol. 2022 Jan 04;11:796625. PMID: 35059318 PMC - PMC8529018 OTO - NOTNLM OT - angiogenesis OT - anlotinib OT - anti-PD-1 antibody OT - immunotherapy OT - serum cytokine COIS- The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2021/10/26 06:00 MHDA- 2021/10/26 06:01 PMCR- 2021/01/01 CRDT- 2021/10/25 06:38 PHST- 2021/03/26 00:00 [received] PHST- 2021/09/17 00:00 [accepted] PHST- 2021/10/25 06:38 [entrez] PHST- 2021/10/26 06:00 [pubmed] PHST- 2021/10/26 06:01 [medline] PHST- 2021/01/01 00:00 [pmc-release] AID - 10.3389/fonc.2021.683502 [doi] PST - epublish SO - Front Oncol. 2021 Oct 7;11:683502. doi: 10.3389/fonc.2021.683502. eCollection 2021.