Enzalutamide, also known as MDV3100, is an orally bioavailable, organic, non-steroidal small molecule targeting the androgen receptor (AR) with potential antineoplastic activity. Through a mechanism that is reported to be different from other approved AR antagonists, selective androgen receptor modulator MDV3100 inhibits the activity of prostate cancer cell ARs, which may result in a reduction in prostate cancer cell proliferation and, correspondingly, a reduction in the serum prostate specific antigen (PSA) level. In August 2012, the United States (U.S.) Food and Drug Administration (FDA) approved enzalutamide for the treatment of castration-resistant prostate cancer.

MedKoo Cat#: 201821 Name: Enzalutamide (MDV3100) CAS#: 915087-33-1 Chemical Formula: C21H16F4N4O2S Exact Mass: 464.09301 Molecular Weight: 464.43 Elemental Analysis: C, 54.31; H, 3.47; F, 16.36; N, 12.06; O, 6.89; S, 6.90

Synonym: MDV3100; MDV 3100; MDV-3100; Enzalutamide brand name: Xtandi.

IUPAC/Chemical Name: 4-(3-(4-cyano-3-(trifluoromethyl)phenyl)-5,5-dimethyl-4-oxo-2-thioxoimidazolidin-1-yl)-2-fluoro-N-methylbenzamide

InChi Key: WXCXUHSOUPDCQV-UHFFFAOYSA-N

InChi Code: InChI=1S/C21H16F4N4O2S/c1-20(2)18(31)28(12-5-4-11(10-26)15(8-12)21(23,24)25)19(32)29(20)13-6-7-14(16(22)9-13)17(30)27-3/h4-9H,1-3H3,(H,27,30)

SMILES Code: O=C(NC)C1=CC=C(N(C(N2C3=CC=C(C#N)C(C(F)(F)F)=C3)=S)C(C)(C)C2=O)C=C1F

Technical Data

Appearance: white solid powder

Purity: >98% (or refer to the Certificate of Analysis)

Certificate of Analysis: View CoA: current batch, Lot#TZC60914 View CoA: previous batch, Lot#KB20120628

QC Data: View QC data: current batch, Lot#TZC60914 View QC data: prevoius batch, Lot#KB20120628

Safety Data Sheet (MSDS): View Material Safety Data Sheet (MSDS)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition: Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Solubility: Soluble in DMSO, not in water

Shelf Life: >2 years if stored properly

Drug Formulation: This drug may be formulated in DMSO

Stock Solution Storage: 0 - 4 C for short term (days to weeks), or -20 C for long term (months).

Harmonized System Code: 293490

Additional Information

MDV 3100 was found clinically active for metastatic castration-resistant prostate cancer patients in ongoing phase I and II trials. PSA level decreased more than 50 percent in 40/65 chemo-naive patients and 38/75 chemotherapy-treated patients. Recent long-term follow up data from these early clinical studies, announced in February 2011, were positive. Median time to radiographic progression was 56 weeks for chemo-naive patients and 25 weeks for the post-chemotherapy population.  Medivation is conducting an international phase III trial that began in September 2009 known as AFFIRM. The trial will determine the effectiveness of MDV3100 in patients who have previously failed chemotherapy treatment with docetaxel.  In November 2011, this trial was halted after an interim analysis revealed that patients given the drug lived for approximately 5 months longer than those taking placebo. Medivation is expected to file for FDA approval sometime in 2012.  There is another phase III trial, known as PREVAIL, that is investigating the effectiveness of MDV3100 with patients who have not yet received chemotherapy. As of October 2011, this trial is still open to accrual. In addition, a phase II trial began in March 2011 comparing MDV3100 with a commonly used anti-androgen, bicalutamide, in prostate cancer patients who have progressed while on LHRH analogue therapy (e,g., leuprorelin) or surgical castration. For detail see wikipedia.com.      

References

1: El-Amm J, Patel N, Freeman A, Aragon-Ching JB. Metastatic Castration-Resistant Prostate Cancer: Critical Review of Enzalutamide. Clin Med Insights Oncol. 2013 Aug 21;7:235-245. Review. PubMed PMID: 24179414; PubMed Central PMCID: PMC3813614.

2: Pal SK, Stein CA, Sartor O. Enzalutamide for the treatment of prostate cancer. Expert Opin Pharmacother. 2013 Apr;14(5):679-85. doi: 10.1517/14656566.2013.775251. Epub 2013 Feb 27. Review. PubMed PMID: 23441761.

3: Ha YS, Goodin S, DiPaola RS, Kim IY. Enzalutamide for the treatment of castration-resistant prostate cancer. Drugs Today (Barc). 2013 Jan;49(1):7-13. doi: 10.1358/dot.2013.49.1.1910724. Review. PubMed PMID: 23362491.

4: Rawlinson A, Mohammed A, Miller M, Kunkler R. The role of enzalutamide in the treatment of castration-resistant prostate cancer. Future Oncol. 2012 Sep;8(9):1073-81. doi: 10.2217/fon.12.99. Review. PubMed PMID: 23030482.