ODM-201 is an androgen receptor (AR) antagonist (Ki = 11 nM). It inhibits AR transactivation in U2OS osteosarcoma cells expressing human wild-type and mutant ARs (IC50s = 65, 66, 1,500, and 1,782 nM for wild-type, ARF876L, ARW741L, and ART877A, respectively). ODM-201 prevents androgen-induced AR nuclear translocation in AR-overexpressing HS-HEK293 and LNCaP cells and suppresses androgen-induced proliferation of VCaP cells (IC50 = 230 nM). In vivo, ODM-201 (50 mg/kg per day) reduces tumor growth in a VCaP castrated mouse xenograft model. It also inhibits tumor growth without increasing serum testosterone levels in a VCaP intact mouse xenograft model.
ODM-201 is a novel androgen receptor (AR) inhibit designed to inhibit the growth of prostate cancer cells through binding to the AR to inhibit the testosterone-induced AR nuclear translocation. It is particularly used in patients with progressive metastatic castration-resistant prostate cancer. It is effective in inhibiting the activity of some mutant ARs emerging during antiandrogen therapies, including the F876L mutation version which is resistant to enzalutamide and ARN-509 (the second-generation antiandrogens).Therefore, it has potential to overcome the resistance issue occurring upon AR-targeted therapies.
ODM-201 is a compound being used as a novel next-generation androgen receptor-directed therapy for prostate cancer.
As a ligand-dependent transcription factor, androgen receptor(AR) controls the expression of multiple genes involved in cell growth and survival. Darolutamide is able to inhibit multiple AR variants that confer resistance to first-generation antagonists.
Synthesis of Darolutamide
Darolutamide (ODM-201) showes a significant antitumor activity with both doses, 50 mg/kg twice daily being more efficacious compared to castrated, untreated mice (p<0.001), which also showes inhibition of tumor growth (p<0.05) vs. castrated, untreated mice. Further, there is no sign of treatment-related toxicities; the body weights of mice treated with Darolutamide twice daily do not decrease significantly during the treatment[1].
Moilanen, Anu Maarit, et al. "Discovery of ODM-201, a new-generation androgen receptor inhibitor targeting resistance mechanisms to androgen signaling-directed prostate cancer therapies." Sci Rep 5.2(2015):12007.
Fizazi, Karim, et al. "ODM-201, a new generation androgen receptor inhibitor for castration-resistant prostate cancer: Preclinical and phase I data." Genitourinary Cancers Symposium of the Conquer-Cancer-Foundation of 2013.
Fizazi, K, et al. "Activity and safety of ODM-201 in patients with progressive metastatic castration-resistant prostate cancer (ARADES): an open-label phase 1 dose-escalation and randomised phase 2 dose expansion trial." Lancet Oncology 5.9(2014):975-85.
