Relugolix (TAK-385) is a potent, orally active, nonpeptidicgonadotropin-releasing hormone (GnRH)antagonist. Relugolix possesses high affinity and potent antagonistic activity for human receptor (bindingIC₅₀=0.33 nM) and monkey receptor (IC₅₀=0.32 nM) compared with TAK-013 (HY-100209)^[1]. Relugolix is used for the study of sex-hormone-dependent diseases, such as including endometriosis, uterine fibroids and prostatecanceret al^[2].

IC50: 0.33 nM (human GnRH)
IC50: 0.32 nM (monkey GnRH)^[2]

Relugolix exhibits strong binding affinity (IC₅₀=0.32 nM) for the monkey receptor comparable to that for the human receptor (IC₅₀=0.33 nM) while displaying a 30000-fold decrease for the rat receptor (IC₅₀=9800 nM). The antagonistic in vitro activity of TAK-385 with respect to the human receptor (IC₉₀=18 nM) exceeded that for the monkey receptor (IC₉₀=1700 nM) by 95-fold in the presence of 40% serum^[1].

Relugolix (oral administration; 1-3 mg/kg; single dose for pharmacokinetic study) exhibits a good pharmacokinetic profile and obvious suppressive effects of circulating LH levels in monkeys at a dose of 1 mg/kg. The pharmacokinetic profile exhibits with 16.0 ng/mL, 2.7 h, and 90.1 ng for C_max, T_max, and AUC_o, respectively in male cynomolgus monkeys^[1].
Relugolix (oral administration; 3, 10 or 30 mg/kg; twice daily; 4 weeks) significantly decreases the testis weight, and reduces the ventral prostate weight at 3 mg/kg and decreases it to castrate levels at 10 mg/kg in male hGNRHR-knock-in mice^[2].
Relugolix (oral administration; 30, 100 or 200 mg/kg; twice daily; 4 weeks) induces constant diestrous phases in all mice within the first week at 100 mg/kg, and significantly decreases the weights of ovaries and uteri at this dose after 4 weeks in female hGNRHR-knock-in mice^[2].

623.63

Solid

C₂₉H₂₇F₂N₇O₅S

737789-87-6

瑞卢戈利

Room temperature in continental US; may vary elsewhere.

DMSO : 100 mg/mL(160.35 mM;Need ultrasonic)

请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。
储备液的保存方式和期限：-80℃, 6 months; -20℃, 1 month。-80℃ 储存时，请在 6 个月内使用，-20℃ 储存时，请在 1 个月内使用。

请根据您的实验动物和给药方式选择适当的溶解方案。以下溶解方案都请先按照In Vitro方式配制澄清的储备液，再依次添加助溶剂：

——为保证实验结果的可靠性，澄清的储备液可以根据储存条件，适当保存；体内实验的工作液，建议您现用现配，当天使用； 以下溶剂前显示的百
分比是指该溶剂在您配制终溶液中的体积占比；如在配制过程中出现沉淀、析出现象，可以通过加热和/或超声的方式助溶

• 1.

  请依序添加每种溶剂： 10% DMSO    40%PEG300   5%Tween-80   45% saline

  Solubility: ≥ 0.83 mg/mL (1.33 mM); Clear solution

  此方案可获得 ≥ 0.83 mg/mL (1.33 mM，饱和度未知) 的澄清溶液。

  以 1 mL 工作液为例，取 100 μL 8.3 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中，混合均匀；向上述体系中加入50 μL Tween-80，混合均匀；然后继续加入 450 μL生理盐水定容至 1 mL。

  将 0.9 g 氯化钠，完全溶解于 100 mL ddH2O 中，得到澄清透明的生理盐水溶液
• 2.

  请依序添加每种溶剂： 10% DMSO    90% (20%SBE-β-CDin saline)

  Solubility: ≥ 0.83 mg/mL (1.33 mM); Clear solution

  此方案可获得 ≥ 0.83 mg/mL (1.33 mM，饱和度未知) 的澄清溶液。

  以 1 mL 工作液为例，取 100 μL 8.3 mg/mL 的澄清 DMSO 储备液加到 900 μL20% 的 SBE-β-CD 生理盐水水溶液中，混合均匀。

  将 2 g 磺丁基醚 β-环糊精加入 5 mL 生理盐水中，再用生理盐水定容至 10 mL，完全溶解，澄清透明
• 3.

  请依序添加每种溶剂： 10% DMSO    90%corn oil

  Solubility: ≥ 0.83 mg/mL (1.33 mM); Clear solution

  此方案可获得 ≥ 0.83 mg/mL (1.33 mM，饱和度未知) 的澄清溶液，此方案不适用于实验周期在半个月以上的实验。

  以 1 mL 工作液为例，取 100 μL 8.3 mg/mL 的澄清 DMSO 储备液加到 900 μL玉米油中，混合均匀。