AZD9496

SKU: orb1226009

Description

A potent, selective estrogen receptor downregulator (SERD) with ER downregulation pIC50 of 9.68; shows pM equipotent binding to both ERα and ERβ isoforms, highly selective binding compared with progesterone (～650-fold), glucocorticoid (～11,223-fold), and androgen (～36,375-fold) receptor LBDs; downregulator of ERα in vitro and in vivo in ER-positive models of breast cancer and orally available. Breast Cancer Phase 1 Clinical(In Vitro):The potency of AZD9496 with IC50 of 0.82 nM, 0.14 nM, and 0.28 nM in ERα binding, downregulation, and antagonism, respectively. AZD9496 significantly inhibits MCF-7 cell growth with EC50 of 0.04 nM. Selectivity of AZD9496 over other tested nuclear hormone receptors is high: androgen receptor (AR), IC50=30 μM; glucocorticoid receptor (GR), IC50=9.2 μM; progesterone receptor (PR), IC50=0.54 μM.\n(In Vivo):Significant tumor growth inhibition is observed as low as 0.5 mg/kg dose in the estrogen-dependent MCF-7 xenograft model, where this effect is accompanied by a dose-dependent decrease in PR protein levels, demonstrating potent antagonist activity. Combining AZD9496 with PI3K pathway and CDK4/6 inhibitors lead to further growth-inhibitory effects compared with monotherapy alone. AZD9496, given once daily orally at 5 and 25 mg/kg produced statistically significant increases in uterine weight compared with the ICI 182780 control (P<0.001) but significantly lower than ICI 47699 (P=0.001). AZD9496 is also tested in a long-term estrogen deprived model (LTED), using the HCC-1428 LTED cell line that grows in the absence of estrogen and is thought to best represent a model of aromatase inhibition. AZD9496 shows significant activity, with a dose of 5 mg/kg giving tumor regressions in this model.

Key Properties

• CAS Number: 1639042-08-2
• MW: 442.4734
• Purity: >98% (HPLC)
• Formula: C₂₅H₂₅F₃N₂O₂
• SMILES: CC1CC2=C(C(N1CC(C)(C)F)C3=C(C=C(C=C3F)C=CC(=O)O)F)NC4=CC=CC=C24
• Target: Estrogen Receptor/ERR
• Solubility: DMSO: ≥ 104.5 mg/mL

Storage & Handling

• Storage: Storage temperature: -20°C. Stability: ≥ 2 years
• Expiration Date: 12 months from date of receipt.
• Disclaimer: For research use only

Alternative Names

AZD-9496

Quick Database Links

Gene Symbol

Estrogen Receptor/ERR