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Phase I/II study of weekly Oraxol for the second-line treatment of patients with metastatic or recurrent gastric cancer

Cited 8 time in Web of Science Cited 11 time in Scopus
Authors
Lee, Keun-Wook; Lee, Kyung Hee; Zang, Dae Young; Park, Young Iee; Shin, Dong Bok; Kim, Jin Won; Im, Seock-Ah; Koh, Sung Ae; Yu, Kyung-Sang; Cho, Joo-Youn; Jung, Jin-A; Bang, Yung-Jue
Issue Date
2015-08
Citation
Oncologist, Vol.20 No.8, pp.896-897
Abstract
Background. Oraxol consists of paclitaxel and HM30181A, a P-glycoprotein inhibitor, to increase the oral bioavailability of paclitaxel. This phase I/II study (HM-OXL-201) was conducted to determine the maximum tolerated dose (MTD) and recommended phase II dose (RP2D) of Oraxol. In addition, we investigated the efficacy and safety of Oraxol as second-line chemotherapy for metastatic or recurrent gastric cancer (GC). Methods. In the phase I component, paclitaxel was orally administered at escalating doses (90, 120, or 150 mg/m(2) per day) with a fixed dose (15 mg/day) of HM30181A. Oraxol was administrated 6 times per cycle (days 1, 2, 8, 9, 15, and 16) every 4 weeks. In the phase II component, the efficacy and safety of Oraxol were evaluated. Results. In the phase I component, the MTD could not be determined. Based on toxicity and pharmacokinetic data, the RP2D of oral paclitaxel was determined to be 150 mg/m(2). In the phase II component, 4 of 43 patients (9.3%) achieved partial responses. Median progression-free survival and overall survival were 2.6 and 10.7 months, respectively. Toxicity profiles were favorable, and the most common drug-related adverse events (grade >= 3) were neutropenia and diarrhea. Conclusion. Oraxol exhibited modest efficacy and favorable toxicity profiles as second-line chemotherapy for GC.
ISSN
1083-7159
URI
https://hdl.handle.net/10371/173219
DOI
https://doi.org/10.1634/theoncologist.2015-0202
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College of Medicine/School of Medicine (의과대학/대학원)Internal Medicine (내과학전공)Journal Papers (저널논문_내과학전공)
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