國家衛生研究院 NHRI:Item 3990099045/12189
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    题名: Phase I study of biweekly liposome irinotecan (PEP02, MM-398) in metastatic colorectal cancer failed on firstline oxaliplatin-based chemotherapy
    作者: Chen, LT;Shiah, HS;Lin, PC;Lee, JC;Su, WC;Wang, YW;Yeh, G;Chang, JY
    贡献者: National Institute of Cancer Research
    摘要: Background: PEP02 (MM-398) is a nanoliposomal formulation of irinotecan (CPT-11) that has improved pharmacokinetics (PK) and tumor distribution of CPT-11 and its active metabolite, SN-38. PEP02 single agent q3w has shown preliminary efficacy and safety in Phase II pancreatic and gastric cancer studies. Since irinotecan is approved for metastatic colorectal cancer (mCRC) and biweekly regimens are widely used, the aims of this study are to determine the maximum tolerated dose (MTD), characterize the PK and pharmacogenetics (PGx), and explore the efficacy of PEP02 q2w in mCRC. Methods: Patients (pts) with disease progression after 1st-line oxaliplatin-based chemotherapy, ECOG PS 0-1, and without prior exposure to irinotecan were eligible. PEP02 was given on day 1 and 15 of each 28 day treatment cycle. The starting dose was 80 mg/m2 and escalated by 10 mg/m2 to the target dose of 100 mg/m2. PK was evaluated during the 1st cycle and the tumor response was assessed by RECIST. Results: A total of 18 pts (M/F 9/9; median age 57.5) were enrolled, with 6 at each dose level. Dose-limiting toxicity manifested as G3 diarrhea was observed in one pt per dose level. The target dose of 100 mg/m2 was determined to be the MTD. Nine pts had dose delayed (4, 3, 2 at 80, 90, 100 mg/m2), mostly because of neutropenia. The PK and PGx are being analysed. As of August 2011, there are 3 pts still on study treatment and 17 pts evaluable for tumor response. Four pts (2 at 80 mg/m2, 1 each at 90 and 100 mg/m2) showed partial response (3 after 2 cycles and 1 after 8 cycles) and 8 pts (3 each at 80 and 90 mg/m2, 2 at 100 mg/m2) maintained stable disease for at least 2 cycles, which resulted in a response rate (RR) of 23.5% and a disease control rate (DCR) of 70.6%. Current median progression-free survival (PFS) is 4 months and 8 pts (47%) had PFS ≥ 6 months. Conclusions: The MTD of biweekly PEP02 is 100 mg/m2. As a 2nd-line monotherapy after oxaliplatin-based chemotherapy, the efficacy results indicate the potential benefit of PEP02 for mCRC (FOLFIRI-1 achieved only 4% RR, 34% DCR, and 2.5 months PFS in FOLFOX pretreated pts). A randomized Phase II study evaluating PEP02 plus 5-FU/LV (FUPEP regimen) vs. FOLFIRI is currently ongoing in France.
    日期: 2012-02
    關聯: Journal of Clinical Oncology. 2012 Feb;30(4):613.
    Link to: http://dx.doi.org/10.1200/jco.2012.30.4_suppl.613
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=0732-183X&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000209849300605
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