EPZ004777 hydrochloride

"目录号: HY-15228

Cell Cycle/DNA Damage-

RX-3117(TV-1360; Fluorocyclopentenylcytosine)是新型胞苷类似物，在多种癌细胞株中证明有抗癌活性，包括吉西他滨耐受细胞株。

Nucleoside Antimetabolite/Analog

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生物活性

Description

RX-3117(TV-1360; Fluorocyclopentenylcytosine) is novel a cytidine analog; shows anticancer activity in several cancer cell lines, including gemcitabine-resistant variants.IC50 value: 0.4- >30 nM (15 cancer cell lines) [1]Target: cytidine analogin vitro: RX-3117 showed a different sensitivity profile compared to cyclopentenyl-cytosine (CPEC) and azacytidine, substrates for uridine-cytidine-kinase (UCK).RX-3117 was a very poor substrate for cytidine deaminase (66,000-fold less than gemcitabine). In sensitive U937 cells 1 μM RX-3117 resulted in 90% inhibition of RNA synthesis but 100 μM RX-3117 was required in A2780 and CCRF-CEM cells. RX-3117 at IC50 values did not affect the integrity of RNA [1].in vivo: Orally-administered RX-3117 was examined in 9 different human tumor xenograft models (colon, non-small cell lung, small cell lung, pancreatic, renal and cervical), grown subcutaneously in athymic nude mice. In the Colo 205, H460, H69 and CaSki models, gemcitabine treatment resulted in 28%, 30%, 25% and 0% tumor growth inhibition (TGI), respectively, whereas oral treatment with RX-3117 induced 100%, 78%, 62% and 66% TGI, respectively [2].

Clinical Trial

NCT03189914

Rexahn Pharmaceuticals, Inc.

Metastatic Pancreatic Cancer

June 2017

Phase 1-Phase 2

NCT02030067

Rexahn Pharmaceuticals, Inc.

Solid Tumor

December 2013

Phase 1-Phase 2

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References

[1].Peters GJ, et al. Metabolism, mechanism of action and sensitivity profile of fluorocyclopentenylcytosine (RX-3117; TV-1360). Invest New Drugs. 2013 Dec;31(6):1444-57.

[2].Yang MY, et al. A novel cytidine analog, RX-3117, shows potent efficacy in xenograft models, even in tumors that are resistant to gemcitabine. Anticancer Res. 2014 Dec;34(12):6951-9.