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Leuprolide Acetate

Pituitary GnRH receptors agonist CAS# 74381-53-6

Leuprolide Acetate

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Chemical structure

Leuprolide Acetate

3D structure

Chemical Properties of Leuprolide Acetate

Cas No. 74381-53-6 SDF Download SDF
PubChem ID 441410 Appearance Powder
Formula C61H88N16O14 M.Wt 1269.45
Type of Compound N/A Storage Desiccate at -20°C
Synonyms Leuprorelin acetate
Solubility H2O : ≥ 66.66 mg/mL (52.51 mM)
DMSO : 25 mg/mL (19.69 mM; Need ultrasonic)
*"≥" means soluble, but saturation unknown.
Chemical Name acetic acid;N-[1-[[1-[[1-[[1-[[1-[[1-[[5-(diaminomethylideneamino)-1-[2-(ethylcarbamoyl)pyrrolidin-1-yl]-1-oxopentan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]amino]-3-(4-hydroxyphenyl)-1-oxopropan-2-yl]amino]-3-hydroxy-1-oxopropan-2-yl]amino]-3-(1H-indol-3-yl)-1-oxopropan-2-yl]amino]-3-(1H-imidazol-5-yl)-1-oxopropan-2-yl]-5-oxopyrrolidine-2-carboxamide
SMILES CCNC(=O)C1CCCN1C(=O)C(CCCN=C(N)N)NC(=O)C(CC(C)C)NC(=O)C(CC(C)C)NC(=O)C(CC2=CC=C(C=C2)O)NC(=O)C(CO)NC(=O)C(CC3=CNC4=CC=CC=C43)NC(=O)C(CC5=CN=CN5)NC(=O)C6CCC(=O)N6.CC(=O)O
Standard InChIKey RGLRXNKKBLIBQS-UHFFFAOYSA-N
Standard InChI InChI=1S/C59H84N16O12.C2H4O2/c1-6-63-57(86)48-14-10-22-75(48)58(87)41(13-9-21-64-59(60)61)68-51(80)42(23-32(2)3)69-52(81)43(24-33(4)5)70-53(82)44(25-34-15-17-37(77)18-16-34)71-56(85)47(30-76)74-54(83)45(26-35-28-65-39-12-8-7-11-38(35)39)72-55(84)46(27-36-29-62-31-66-36)73-50(79)40-19-20-49(78)67-40;1-2(3)4/h7-8,11-12,15-18,28-29,31-33,40-48,65,76-77H,6,9-10,13-14,19-27,30H2,1-5H3,(H,62,66)(H,63,86)(H,67,78)(H,68,80)(H,69,81)(H,70,82)(H,71,85)(H,72,84)(H,73,79)(H,74,83)(H4,60,61,64);1H3,(H,3,4)
General tips For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months.
We recommend that you prepare and use the solution on the same day. However, if the test schedule requires, the stock solutions can be prepared in advance, and the stock solution must be sealed and stored below -20℃. In general, the stock solution can be kept for several months.
Before use, we recommend that you leave the vial at room temperature for at least an hour before opening it.
About Packaging 1. The packaging of the product may be reversed during transportation, cause the high purity compounds to adhere to the neck or cap of the vial.Take the vail out of its packaging and shake gently until the compounds fall to the bottom of the vial.
2. For liquid products, please centrifuge at 500xg to gather the liquid to the bottom of the vial.
3. Try to avoid loss or contamination during the experiment.
Shipping Condition Packaging according to customer requirements(5mg, 10mg, 20mg and more). Ship via FedEx, DHL, UPS, EMS or other couriers with RT, or blue ice upon request.

Biological Activity of Leuprolide Acetate

DescriptionLeuprolide acetate (Leuprorelin) is a GnRH analog; leuprolide acetate acts as an agonist at pituitary GnRH receptors. IC50 Value: Target: GnRH receptor By interrupting the normal pulsatile stimulation of, and thus desensitizing, the GnRH receptors, it indirectly downregulates the secretion of gonadotropins luteinizing hormone (LH) and follicle-stimulating hormone (FSH), leading to hypogonadism and thus a dramatic reduction in estradiol andtestosterone levels in both sexes. in vitro: The number of DNA 3'-end-labeled cells/cm2 in leiomyomas of control patients and in leiomyomas at the 2nd, 8th, 12th, and 16th weeks of Leuprolide Acetate treatment were at low levels [1]. Testosterone, estradiol and progesterone were also reduced by LA, even though this reduction occurred for progesterone only at the highest LA dosage (10(-6)M; 606.0+/-114.3 ng/ml versus 1524.0+/-246.5 ng/ml; p=0.02) [2]. in vivo: Leuprolide acetate treatment decreases the severity of clinical signs of locomotion, induces a significantly greater body weight gain, increases the MBP and NFs expression, axonal area and cell infiltration in EAE animals [3]. Leuprolide (200 and 300 microg kg(-1) s.c.) per se showed anti-compulsive effect, causing statistically significant inhibition of marble-burying behavior of mice [4]. Clinical trial: Neoadjuvant Abiraterone Acetate Plus Leuprolide Acetate in Men With Localized High Risk Prostate Cancer . Phase 2

References:
[1]. Mizutani T, Sugihara A, Nakamuro K, Suppression of cell proliferation and induction of apoptosis in uterine leiomyoma by gonadotropin-releasing hormone agonist (leuprolide acetate). J Clin Endocrinol Metab. 1998 Apr;83(4):1253-5. [2]. Silva AL, Abreu LG, Rosa-e-Silva AC, Leuprolide acetate reduces both in vivo and in vitro ovarian steroidogenesis in infertile women undergoing assisted reproduction. Steroids. 2008 Dec 22;73(14):1475-84. [3]. Guzmán-Soto I, Salinas E, Hernández-Jasso I, Leuprolide acetate, a GnRH agonist, improves experimental autoimmune encephalomyelitis: a possible therapy for multiple sclerosis. Neurochem Res. 2012 Oct;37(10):2190-7. [4]. Gaikwad U, Parle M, Kumar A, Effect of ritanserin and leuprolide alone and combined on marble-burying behavior of mice. Acta Pol Pharm. 2010 Sep-Oct;67(5):523-7.

Leuprolide Acetate Dilution Calculator

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Leuprolide Acetate Molarity Calculator

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Preparing Stock Solutions of Leuprolide Acetate

1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 0.7877 mL 3.9387 mL 7.8774 mL 15.7549 mL 19.6936 mL
5 mM 0.1575 mL 0.7877 mL 1.5755 mL 3.151 mL 3.9387 mL
10 mM 0.0788 mL 0.3939 mL 0.7877 mL 1.5755 mL 1.9694 mL
50 mM 0.0158 mL 0.0788 mL 0.1575 mL 0.3151 mL 0.3939 mL
100 mM 0.0079 mL 0.0394 mL 0.0788 mL 0.1575 mL 0.1969 mL
* Note: If you are in the process of experiment, it's necessary to make the dilution ratios of the samples. The dilution data above is only for reference. Normally, it's can get a better solubility within lower of Concentrations.

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Background on Leuprolide Acetate

Description: IC50 Value: N/A Leuprorelin (INN) or leuprolide acetate (USAN) is a GnRH analog. leuprolide acetate acts as an agonist at pituitary GnRH receptors. By interrupting the normal pulsatile stimulation of, and thus desensitizing, the GnRH receptors, it indirectly downregulates the secretion of gonadotropins luteinizing hormone (LH) and follicle-stimulating hormone (FSH), leading to hypogonadism and thus a dramatic reduction in estradiol andtestosterone levels in both sexes. in vitro: The number of DNA 3'-end-labeled cells/cm2 in leiomyomas of control patients and in leiomyomas at the 2nd, 8th, 12th, and 16th weeks of Leuprolide Acetate treatment were at low levels [1]. Testosterone, estradiol and progesterone were also reduced by LA, even though this reduction occurred for progesterone only at the highest LA dosage (10(-6)M; 606.0+/-114.3 ng/ml versus 1524.0+/-246.5 ng/ml; p=0.02) [2]. in vivo: Leuprolide acetate treatment decreases the severity of clinical signs of locomotion, induces a significantly greater body weight gain, increases the MBP and NFs expression, axonal area and cell infiltration in EAE animals [3]. Leuprolide (200 and 300 microg kg(-1) s.c.) per se showed anti-compulsive effect, causing statistically significant inhibition of marble-burying behavior of mice [4]. Clinical trial: Neoadjuvant Abiraterone Acetate Plus Leuprolide Acetate in Men With Localized High Risk Prostate Cancer . Phase 2

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References on Leuprolide Acetate

Comparative in vitro release and clinical pharmacokinetics of leuprolide from Luphere 3M Depot, a 3-month release formulation of leuprolide acetate.[Pubmed:27824264]

Drug Dev Ind Pharm. 2017 Mar;43(3):441-447.

A 3-month depot formulation of Leuprolide Acetate (Luphere 3M Depot) with a mean microsphere diameter of 22.3 mum was prepared aseptically by spray-drying glacial acetic acid solution of the drug and polylactic acid, and lyophilization in a d-mannitol solution. The encapsulation efficiency and loading content of the drug in the Luphere 3M Depot were 94.7% and 9.92% (w/w), respectively. The in vitro release of leuprolide from the depot was substantially delayed and the release profile was similar to that of Lucrin Depot (Abbott Korea, Korea). The safety and pharmacokinetics of leuprolide were investigated over a period of 42 days in 20 prostate cancer patients following a subcutaneous injection of Luphere 3M or Lucrin Depot suspensions (Leuprolide Acetate dose of 11.25 mg) in a multi-center, randomized, single dose, parallel study. Both formulations were well tolerated by the patients and no serious adverse effects were observed during and after the study. No significant differences were observed in the maximum serum concentration (Cmax) and area under the curve (AUClast) of leuprolide between the two formulations. The results suggest comparable safety and efficacy profiles of Luphere 3M Depot and Lucrin Depot in clinical situations.

Formulation and characterization of a liquid crystalline hexagonal mesophase region of phosphatidylcholine, sorbitan monooleate, and tocopherol acetate for sustained delivery of leuprolide acetate.[Pubmed:27863678]

Int J Pharm. 2016 Nov 30;514(1):314-321.

Although liquid crystal (LC) systems have been studied before, their utility in drug delivery applications has not been explored in depth. This study examined the development of a 1-month sustained release formulation of Leuprolide Acetate using an in situ-forming LC matrix. The phase progression upon water absorption was tested through construction of ternary phase diagrams of phosphatidylcholine, sorbitan monooleate, and tocopherol acetate (TA) at increasing water content. Small angle X-ray scattering revealed the presence of lamellar and hexagonal mesophases. The physicochemical characteristics and in vitro drug release were evaluated as a function of the ternary component ratio and its resultant phase behavior. Formulations with increased water uptake capacity displayed greater drug release and enhanced erodability. Removal of TA resulted in increased water uptake capacity and drug release, where 8% (w/w) TA was determined as the critical concentration threshold for divergence of release profiles. In conclusion, characterization of the resultant HII mesophase region provided information of the impact the individual components have on the physicochemical properties and potential drug release mechanisms. This high mitigating impact of TA on drug release indicates the use of TA as a tailoring agent, broadening the therapeutic applications of this LC system.

Androgen deprivation therapy with Leuprolide acetate for treatment of advanced prostate cancer.[Pubmed:27826989]

Expert Opin Pharmacother. 2017 Jan;18(1):105-113.

INTRODUCTION: Hormone sensitive advanced prostate cancer (PCa) is an incurable disease that is treated with a variety of hormonal therapies targeting the androgen/androgen receptor signaling axis. For decades androgen deprivation therapy (ADT) by surgical or chemical castration is the gold standard for the treatment of advanced PCa. Areas covered: This review discusses the pharmacological features of Leuprolide, a luteinizing hormone-releasing hormone (LHRH) agonists/analog and the most commonly used drug in ADT. Expert opinion: Although Leuprolide has been on the market for more than 30 years it is still the leading option for ADT and serves as a basis for most multimodal therapy concepts. The fact that with the onset of castration-resistance in late stage metastatic disease, a prolongation of ADT in combination with a second line hormonal manipulation is recommended supports the importance of the compound for daily clinical practice.

The impact of postnatal leuprolide acetate treatment on reproductive characteristics in a rodent model of polycystic ovary syndrome.[Pubmed:27988272]

Mol Cell Endocrinol. 2017 Feb 15;442:125-133.

In this study, a GnRH agonist, Leuprolide Acetate (LA), was given as a single depot injection before 48 h of life to Wistar female rats allotted to prenatal (E16-18) and postnatal androgenization (day 5 of life) by the use of testosterone propionate, looking for reproductive endpoints. Remarkably, a single injection of LA increased the estrus cycles in the postnatal group (PostN) from 0% to 25% of the estrus cycles in the postnatal LA treated group (PostN L). LA also reduced the serum testosterone levels and cysts and atretic follicles in PostN L in contrast with rats (>100 days) from the PostN group (p = 0.04). Prenatally androgenized rats (PreN) exhibited significant modifications in the hypothalamic genes, such as Gnrh. To the best of our knowledge, this is the first study to show that blockage of the GnRH axis with Leuprolide Acetate depot prevented the development of typical features (anovulation, cysts, atretic follicles) in a postnatal testosterone propionate rat model of PCOS.

Description

Leuprolide acetate (Leuprorelin acetate) is a potent gonadotropin-releasing hormone receptor agonist used for the treatment of prostate cancer, endometriosis, uterine fibroids.

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