Ralaniten_acetate

Ralaniten acetate

Ralaniten acetate

Chemical compound

Ralaniten acetate (developmental code name EPI-506) is a first-in-class antiandrogen that targets the N-terminal domain (NTD) of the androgen receptor (AR) developed by ESSA Pharmaceuticals and was under investigation for the treatment of prostate cancer.[1][2] This mechanism of action is believed to allow the drug to block signaling from the AR and its splice variants.[3][4] EPI-506 is a derivative of bisphenol A[5] and a prodrug of ralaniten (EPI-002), one of the four stereoisomers of EPI-001, and was developed as a successor of EPI-001.[6] The drug reached phase I/II prior to the discontinuation of its development.[1] It showed signs of efficacy in the form of prostatic specific antigen (PSA) decreases (4–29%) predominantly at higher doses (≥1,280 mg) in some patients but also caused side effects and was discontinued by its developer in favor of next-generation AR NTD inhibitors with improved potency and tolerability.[7]

Quick Facts Clinical data, Other names ...

See also

References

  1. [1]
    "Ralaniten acetate - ESSA Pharma". AdisInsight. Springer Nature Switzerland AG.
  2. [2]
    Martinez-Ariza G, Hulme C (2015). "Recent advances in allosteric androgen receptor inhibitors for the potential treatment of castration-resistant prostate cancer". Pharmaceutical Patent Analyst. 4 (5): 387–402. doi:10.4155/ppa.15.20. PMID 26389532.
  3. [3]
    "A phase 1/2 open-label study of safety and antitumor activity of EPI-506, a novel AR N-terminal domain inhibitor, in men with metastatic castration-resistant prostate cancer (mCRPC) with progression after enzalutamide or abiraterone". Journal of Clinical Oncology. ISSN 0732-183X. Archived from the original on 2016-03-06. Retrieved 2016-02-27.
  4. [4]
    Silberstein JL, Taylor MN, Antonarakis ES (April 2016). "Novel Insights into Molecular Indicators of Response and Resistance to Modern Androgen-Axis Therapies in Prostate Cancer". Current Urology Reports. 17 (4): 29. doi:10.1007/s11934-016-0584-4. PMC 4888068. PMID 26902623.
  5. [5]
    Monaghan AE, McEwan IJ (2016). "A sting in the tail: the N-terminal domain of the androgen receptor as a drug target". Asian Journal of Andrology. 18 (5): 687–94. doi:10.4103/1008-682X.181081. PMC 5000789. PMID 27212126.
  6. [6]
    Myung JK, Banuelos CA, Fernandez JG, Mawji NR, Wang J, Tien AH, et al. (July 2013). "An androgen receptor N-terminal domain antagonist for treating prostate cancer". The Journal of Clinical Investigation. 123 (7): 2948–60. doi:10.1172/JCI66398. PMC 3696543. PMID 23722902.
  7. [7]
    "ESSA Pharma Announces Results from the Phase 1 Clinical Trial of EPI-506 for Treatment of mCRPC and Updates Clinical and Strategic Plans" (Press release). ESSA Pharma.
Stub icon

This antineoplastic or immunomodulatory drug article is a stub. You can help Wikipedia by expanding it.

Stub icon

This drug article relating to the genito-urinary system is a stub. You can help Wikipedia by expanding it.
Share this article:

This article uses material from the Wikipedia article Ralaniten_acetate, and is written by contributors. Text is available under a CC BY-SA 4.0 International License; additional terms may apply. Images, videos and audio are available under their respective licenses.