1. GPCR/G Protein
  2. GNRH Receptor

Degarelix 

Cat. No.: HY-16168A Purity: >98.0%
Data Sheet SDS Handling Instructions

Degarelix is a competitive gonadotropin-releasing hormone receptor (GnRHR) antagonist for the treatment of androgen-dependent advanced prostate cancer.

For research use only. We do not sell to patients.
Degarelix Chemical Structure

Degarelix Chemical Structure

CAS No. : 214766-78-6

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10 mM * 1 mL in Water $449 In-stock
2 mg $90 In-stock
5 mg $150 In-stock
10 mg $250 In-stock
50 mg $850 In-stock
100 mg $1600 In-stock
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  • Biological Activity

  • Protocol

  • Technical Information

  • Purity & Documentation

  • References

Description

Degarelix is a competitive gonadotropin-releasing hormone receptor (GnRHR) antagonist for the treatment of androgen-dependent advanced prostate cancer.

In Vitro

Degarelix acts directly on the pituitary receptors for luteinizing hormone-releasing hormone (LHRH), blocking the action of endogenous LHRH. The use of degarelix eliminates the initial undesirable surge in gonadotropin and testosterone levels, which is produced by agonists of LHRH[1]. Degarelix treatment reduces cell viability in all prostate cell lines (WPE1-NA22, WPMY-1, BPH-1 cells, VCaP cells), with the exception of the PC-3 cells. The GnRH antagonist degarelix exerts a direct effect on prostate cell growth through apoptosis[2].

In Vivo

At single subcutaneous injections of 0.3 to 10 μg/kg in rats, degarelix produces a dose-dependent suppression of the pituitary-gonadal axis as revealed by the decrease in plasma luteinizing hormone (LH) and testosterone levels. Duration of LH suppression increases with the dose: in the rat, significant suppression of LH lasted 1, 2, and 7 days after a single subcutaneous injection of degarelix at 12.5, 50, or 200 μg/kg, respectively[3]. Degarelix is stable when incubated in microsomes and cryopreserved hepatocytes from animal liver tissue. In rat and dog, most of the degarelix dose is eliminated within 48 h via urine and feces in equal amounts (40–50% in each matrix), whereas in monkey the major route of excretion is fecal (50%) and renal (22%)[4].

Clinical Trial
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References
Cell Assay
[2]

Cells are allowed to attach for 24–48 hours (h). After that, they are treated with different concentrations of degarelix, a GnRH antagonist (0.1 to 10 μM). 10 μL of MTT labeling reagent is added to each well and the plates are incubated at 37°C for 4h. Then, 100 μL of solubilization solution is added, and the plates are incubated at 37°C, overnight, in a humidified atmosphere. The final reaction is measured at 550–600 nm. The obtained absorbance directly correlates to the number of live and metabolically active cells, providing an indication of cell viability[2]. MCE has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Administration
[4]

Rat: To study the absorption, distribution, metabolism, and excretion, male and female rats are dosed with 30 μg [3H]degarelix free base peptide/kg (∼300 μCi/kg). Feces, heparin plasma, and urine samples from groups A and B are collected up to 240 h after dosing. Bile sampling from cannulated rats (group C) as well as urine and feces are collected for up to 48 h. All samples in this study are analyzed by LC-RAD at the contract research[4].

Monkey: Four male cynomolgus monkeys (4.2–7.5 kg) are dosed for a disposition of radioactivity study. The animals are administered a single subcutaneous dose of 8.2 μg/kg (200 μCi/kg) [3H]degarelix. Urine and feces samples are collected quantitatively from each animal after dosing until the time of sacrifice. Blood samples are collected at the time of the sacrifice of the individual animal (6, 24, 48, and 240 h) into tubes containing EDTA as an anticoagulant[4].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

References
Molecular Weight

1632.26

Formula

C₈₂H₁₀₃ClN₁₈O₁₆

CAS No.

214766-78-6

Storage
Powder -20°C 3 years
  4°C 2 years
In solvent -80°C 6 months
  -20°C 1 month
Shipping

Room temperature in continental US; may vary elsewhere

Solvent & Solubility

H2O: ≥ 500 mg/mL

* "<1 mg/mL" means slightly soluble or insoluble. "≥" means soluble, but saturation unknown.

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Degarelix
Cat. No.:
HY-16168A
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