Abstract 3259: LY3127804, a novel anti-Angiopoietin-2 antibody in combination with an anti-VEGFR2 antibody potently inhibits angiogenesis, tumor growth and metastasis

血管生成素受体 阿柏西普 血管生成 萌芽血管生成 抗体 癌症研究 医学 转移 癌症 新生血管 贝伐单抗 免疫学 内科学 化疗
作者
Sudhakar Chintharlapalli,Johnny E. Croy,Donmienne Leung,Damien Gerald,Jirong Lu,Philip W. Iversen,Linda N. Lee,Lysiane Huber,Jonathan W. Tetreault,Rowena Almonte‐Baldonado,Jianghuai Xu,Bharathi Ramamurthy,Jennifer Pereira,Chi-Kin Chow,Axel-Rainer Hanauske,Volker Wacheck,Laura E. Benjamin,Ling Liu
出处
期刊:Cancer Research [American Association for Cancer Research]
卷期号:76 (14_Supplement): 3259-3259 被引量:1
标识
DOI:10.1158/1538-7445.am2016-3259
摘要

Abstract Angiopoeitin-2 (Ang2) is released from endothelial cells only in response to stimulus (e.g. wound healing, tumor growth) and facilitates blood vessel sprouting and inhibits pericyte-endothelial cell interaction via Tie2 signaling. Combination of an anti-Ang2 antibody and aflibercept, a VEGF trap, has been shown to inhibit tumor growth and decrease tumor vascularity in mouse xenograft tumor models (Daly et al., Cancer Res (2013) 73(1):108). Multiple investigational anti-Ang2 antibody therapies are currently in clinical trials. LY3127804 is a humanized and engineered IgG4 isotype antibody that selectively binds to Ang2 with high affinity and neutralizes Ang2 induced phospho-Tie2. LY3127804 inhibits sprouting angiogenesis and increases pericyte coverage in a mouse developmental retinal angiogenesis model and in mice bearing PC3 xenograft tumors. Combination of LY3127804 and DC101, a potent anti-VEGFR2 antibody, exhibits enhanced efficacy when compared to monotherapy in multiple patient derived xenograft models including NSCLC and ovarian cancers. Anti-Ang2 antibody monotherapy alone resulted in marginal reduction of tumor growth and improved overall survival, while DC101monotherapy had greater reduction in tumor volume with no survival benefit in MDA-MB-231 breast orthotopic model. Combination of anti-Ang2 antibody with anti-VEGFR2 antibody shows reduction in tumor volume and improved overall survival. This robust pre-clinical evidence supports testing the combination of anti-Ang2 and anti-VEGFR2 antibodies in the clinic. LY3127804 is currently in Phase 1 clinical trials (NCT02597036) Citation Format: Sudhakar R. Chintharlapalli, Johnny E. Croy, Donmienne Leung, Damien Gerald, Jirong Lu, Philip W. Iversen, Linda N. Lee, Lysiane Huber, Jonathan Tetreault, Rowena Almonte-Baldonado, Jianghuai Xu, Bharathi Ramamurthy, Jennifer A. Pereira, Chi-Kin Chow, Axel-Rainer Hanauske, Volker Wacheck, Laura Benjamin, Ling Liu. LY3127804, a novel anti-Angiopoietin-2 antibody in combination with an anti-VEGFR2 antibody potently inhibits angiogenesis, tumor growth and metastasis. [abstract]. In: Proceedings of the 107th Annual Meeting of the American Association for Cancer Research; 2016 Apr 16-20; New Orleans, LA. Philadelphia (PA): AACR; Cancer Res 2016;76(14 Suppl):Abstract nr 3259.

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