Ixabepilone (BMS 247550) is an epothilone B analog and nontaxane microtubule-stabilizing compound. Ixabepilone induces cell cycle arrest at the G(2)-M phase transition and subsequent apoptotic cell death of MDA-MB-468 (468) cells. Ixabepilone, on a once every 21-day schedule, is modestly active against metastatic gastric cancer previously treated with a taxane. The days 1-5 every 21 days schedule had a more favorable safety profile but no activity. The results of this study suggest that once every 21-day ixabepilone schedule should be pursued further in untreated gastric or gastroesophageal adenocarcinoma patients. Ixabepilone has demonstrated activity in patients with chemotherapy-naive metastatic HRPC. Major toxicities were neutropenia and neuropathy. Further testing to define its activity relative to standard therapy is warranted.
|Body Surface Area (m2)||0.007||0.025||0.15||0.05||0.02||0.5|
|Animal A (mg/kg) = Animal B (mg/kg) multiplied by||Animal B Km|
|Animal A Km|
For example, to modify the dose of resveratrol used for a mouse (22.4 mg/kg) to a dose based on the BSA for a rat, multiply 22.4 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for resveratrol of 11.2 mg/kg.
A phase II trial of ixabepilone in Asian patients with advanced gastric cancer previously treated with fluoropyrimidine-based chemotherapy.
Kim YH, et al. Cancer Chemother Pharmacol. 2012 Oct;70(4):583-90. PMID: 22886073.
A phase I study of ixabepilone in combination with epirubicin in patients with metastatic breast cancer.
Roché H, et al. Clin Breast Cancer. 2012 Jun;12(3):167-74. PMID: 22607766.
A phase II clinical trial of ixabepilone (Ixempra; BMS-247550; NSC 710428), an epothilone B analog, in patients with metastatic renal cell carcinoma.
Huang H, et al. Clin Cancer Res. 2010 Mar 1;16(5):1634-41. PMID: 20179242.
|Related Microtubule Products|
Crolibulin (also known as EPC2407 and crinobulin) is a small molecule tubulin polymerization inhibitor with potential antineoplastic activity.
Maytansinol, also known as Ansamitocin P-0, is a potent microtubule depolymerizing agent.
Epothilone D is a potent microtubule stabilizer.
|Estramustine phosphate sodium
Estramustine phosphate sodium is an antimicrotubule chemotherapy agent; arrests prostate cancer cells in the G2/M phase of the cell cycle.
Docetaxel trihydrate(Taxotere trihydrate), an analog of taxol, is an inhibitor of depolymerisation of microtubules through binding to stabilized microtubules.
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