|Other names||Azaepothilone B, BMS-247550|
|Drug class||Epothilone, microtubule inhibitor|
|Main uses||Breast cancer|
|Side effects||Peripheral neuropathy, tiredness, muscle pain, hair loss, nausea, inflammation of the mouth, diarrhea, low blood cells|
|Protein binding||67 to 77%|
|Metabolism||Extensive, hepatic, CYP3A4-mediated|
|Elimination half-life||52 hours|
|Excretion||Fecal (mostly) and renal|
|Chemical and physical data|
|Molar mass||506.70 g·mol−1|
|3D model (JSmol)|
|(what is this?)|
Common side effects include peripheral neuropathy, tiredness, muscle pain, hair loss, nausea, inflammation of the mouth, diarrhea, and low blood cells. Other side effects may include allergic reactions, heart attack, and arrhythmia. Use in pregnancy many harm the baby. It is an epothilone and microtubule inhibitor.
Ixabepilone, in combination with capecitabine, has demonstrated effectiveness in the treatment of metastatic or locally advanced breast cancer in patients after failure of an anthracycline and a taxane.
It has been investigated for use in treatment of non-Hodgkin's lymphoma. In pancreatic cancer phase two trial it showed some promising results (used alone). Combination therapy trials are ongoing.
Much like Taxol, Ixabepilone acts to stabilize microtubules. It is highly potent, capable of damaging cancer cells in very low concentrations, and retains activity in cases where tumor cells are insensitive to taxane type drugs.
Ixabepilone is a semi-synthetic analog of epothilone B, a natural chemical compound produced by Sorangium cellulosum. Epothilone B itself could not be developed as a pharmaceutical drug because of poor metabolic stability and pharmacokinetics. Ixabepilone was designed through medicinal chemistry to improve upon these properties.
Society and culture
On October 16, 2007, the U.S. Food and Drug Administration approved ixabepilone for the treatment of aggressive metastatic or locally advanced breast cancer no longer responding to currently available chemotherapies. In November 2008, the EMEA has refused a marketing authorisation for Ixabepilone.
Ixabepilone is administered through injection, and is marketed under the trade name Ixempra.
- Mandhare, A; Biradar, S; Gurule, A (August 2016). "Azaepothilone B and its derivatives: a patent review". Expert opinion on therapeutic patents. 26 (8): 891–905. doi:10.1080/13543776.2016.1199688. PMID 27282355.
- "Ixabepilone Monograph for Professionals". Drugs.com. Retrieved 26 November 2021.
- "DailyMed - IXEMPRA- ixabepilone kit". dailymed.nlm.nih.gov. Retrieved 1 December 2021.
- "Ixempra Prices, Coupons & Patient Assistance Programs". Drugs.com. Retrieved 1 December 2021.
- Thomas ES, Gomez HL, Li RK, et al. (November 2007). "Ixabepilone plus capecitabine for metastatic breast cancer progressing after anthracycline and taxane treatment". J. Clin. Oncol. 25 (33): 5210–7. doi:10.1200/JCO.2007.12.6557. PMID 17968020. Archived from the original on 2013-04-15.
- Aghajanian C, Burris HA, Jones S, et al. (March 2007). "Phase I study of the novel epothilone analog ixabepilone (BMS-247550) in patients with advanced solid tumors and lymphomas". J. Clin. Oncol. 25 (9): 1082–8. doi:10.1200/JCO.2006.08.7304. PMID 17261851. Archived from the original on 2013-04-15.
- M. Vulfovich; Rocha-Lima, C; et al. (2008). "Novel advances in pancreatic cancer treatment". Expert Rev Anticancer Ther. 8 (6): 993–1002. doi:10.1586/1473722.214.171.1243. PMID 18533808. S2CID 20049942.
- Lopus, M; Smiyun, G; Miller, H; Oroudjev, E; Wilson, L; Jordan, MA (2015). "Mechanism of action of ixabepilone and its interactions with the βIII-tubulin isotype". Cancer Chemother Pharmacol. 76 (5): 1013–24. doi:10.1007/s00280-015-2863-z. PMID 26416565. S2CID 1842156.
- Denduluri N, Swain SM (March 2008). "Ixabepilone for the treatment of solid tumors: a review of clinical data". Expert Opin Investig Drugs. 17 (3): 423–35. doi:10.1517/135437126.96.36.1993. PMID 18321240. S2CID 71169099.
- Goodin S (November 2008). "Ixabepilone: a novel microtubule-stabilizing agent for the treatment of metastatic breast cancer". Am J Health Syst Pharm. 65 (21): 2017–26. doi:10.2146/ajhp070628. PMID 18945860.
- Goodin S (May 2008). "Novel cytotoxic agents: epothilones". Am J Health Syst Pharm. 65 (10 Suppl 3): S10–5. doi:10.2146/ajhp080089. PMID 18463327.
- Lee FY, Borzilleri R, Fairchild CR, et al. (December 2008). "Preclinical discovery of ixabepilone, a highly active antineoplastic agent". Cancer Chemother. Pharmacol. 63 (1): 157–66. doi:10.1007/s00280-008-0724-8. PMID 18347795.
- "FDA Approves IXEMPRA(TM) (ixabepilone), A Semi-Synthetic Analog Of Epothilone B, For The Treatment Of Advanced Breast Cancer". Medical News Today.
- London, 20 November 2008 Doc. Ref. EMEA/602569/2008