MGV354
目录号 : GC62616MGV354 是一种可溶性鸟苷酸环化酶 (sGC) 活化剂,在 CHO 和 GTM-3E 细胞中 EC50 分别为 <0.5 nM 和 5 nM。
Sample solution is provided at 25 µL, 10mM.
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MGV354 is a soluble guanylate cyclase (sGC) activator with EC50s of <0.5 nM, and 5 nM in CHO and GTM-3 E cells, respectively[1][2].
MGV354 (0.1 nM-10 μM) treatment for 1 hour causes a dose-dependent increase in cGMP levels in normal human trabecular meshwork (NTM) cells (average EC50=2.5±1.6 nM) following treatment with ODQ (20 μM). The average cGMP produced by MGV354 in human NTM cells is 46±28 nM. MGV354 (1 μM) causes a linear increase in intracellular cGMP levels in a time-dependent manner (assay conditions up to 3 hours) in NTM cells[3].
MGV354 (Compound (+)-23) robustly lowers intraocular pressure in a cynomolgus model of elevated intraocular pressure over 24 h after a single topical ocular drop[1].
[1]. Ehara T, et al. The Discovery of ( S)-1-(6-(3-((4-(1-(Cyclopropanecarbonyl)piperidin-4-yl)-2-methylphenyl)amino)-2,3-dihydro-1 H-inden-4-yl)pyridin-2-yl)-5-methyl-1 H-pyrazole-4-carboxylic Acid, a Soluble Guanylate Cyclase Activator Specifically Designed for Topical Ocular Delivery as a Therapy for Glaucoma. J Med Chem. 2018 Mar 22;61(6):2552-2570.
[2]. Stacy R, et al. A Randomized, Controlled Phase I/II Study to Evaluate the Safety and Efficacy of MGV354 for Ocular Hypertension or Glaucoma.Am J Ophthalmol. 2018 Aug;192:113-123.
[3]. Prasanna G, et al. A Novel Selective Soluble Guanylate Cyclase Activator, MGV354, Lowers Intraocular Pressure in Preclinical Models, Following Topical Ocular Dosing.Invest Ophthalmol Vis Sci. 2018 Apr 1;59(5):1704-1716.
Cas No. | SDF | ||
分子式 | C35H37N5O3 | 分子量 | 575.7 |
溶解度 | 储存条件 | Store at -20°C | |
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1 mg | 5 mg | 10 mg | |
1 mM | 1.737 mL | 8.6851 mL | 17.3702 mL |
5 mM | 0.3474 mL | 1.737 mL | 3.474 mL |
10 mM | 0.1737 mL | 0.8685 mL | 1.737 mL |
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Understanding metabolism related differences in ocular efficacy of MGV354
Xenobiotica 2021 Jan;51(1):5-14.PMID:32662714DOI:10.1080/00498254.2020.1794658.
MGV354 was being developed as a novel ocular therapy for lowering of intraocular pressure, a key modifiable risk factor for glaucoma. MGV354 is an activator of soluble guanylate cyclase, an enzyme known to be involved in the regulation of IOP. MGV354 has been shown to robustly lower IOP over 24 h after a single topical ocular drop in rabbit and monkey pharmacology models. However, MGV354 failed to produce similar results in patients with ocular hypertension or open-angle glaucoma. With an objective of explaining the lack of efficacy in the clinic, we attempted to study whether human metabolism was significantly different from animal metabolism. The present study documents the investigation of metabolism of MGV354 in an effort to understand potential differences in biotransformation pathways of MGV354 in rabbits, monkeys, and humans. Overall twenty-six metabolites, formed via oxidative and conjugative pathways, were identified in vitro and in vivo. In vitro hepatic metabolism was qualitatively similar across species, with minor but distinct differences. There were no observable interspecies differences in the hepatic and ocular metabolism of MGV354. Although ocular metabolism was not as extensive as hepatic, the results do not explain the lack of efficacy of MGV354 in clinical studies.
A Randomized, Controlled Phase I/II Study to Evaluate the Safety and Efficacy of MGV354 for Ocular Hypertension or Glaucoma
Am J Ophthalmol 2018 Aug;192:113-123.PMID:29802818DOI:10.1016/j.ajo.2018.05.015.
Purpose: To assess the clinical safety, tolerability, and efficacy of topically administered MGV354, a soluble guanylate cyclase (sGC) activator, in patients with ocular hypertension (OH) or glaucoma. Design: Double-masked, randomized, and vehicle-controlled study. Methods: Parts 1 and 2 evaluated safety and tolerability to identify the maximum tolerated dose (MTD) of once-daily MGV354 in 32 healthy volunteers (Part 1) and 16 patients with OH or glaucoma (Part 2) at a single clinical site. Part 3 was a multisite trial that evaluated intraocular pressure (IOP)-lowering efficacy of the MTD administered nightly for 1 week in 50 patients with minimum IOP of 24 mm Hg at 8 AM, with a main outcome measure of mean diurnal IOP at day 8 compared to baseline (ClinicalTrials.govNCT02743780). Results: There was no difference in favor of MGV354 for IOP lowering; change from baseline to day 8 in mean diurnal IOP was -0.6 mm Hg for MGV354-treated patients and -1.1 mm Hg for vehicle-treated patients in Part 3, with a confidence interval of -0.7 to 1.7. The most common adverse events reported after MGV354 administration were conjunctival and ocular hyperemia. Conclusions: Overall, MGV354 0.1% demonstrated no statistically significant effect compared to vehicle in lowering IOP based on the study's main outcome measure. MGV354 produced ocular hyperemia consistent with its pharmacology.
A Novel Selective Soluble Guanylate Cyclase Activator, MGV354, Lowers Intraocular Pressure in Preclinical Models, Following Topical Ocular Dosing
Invest Ophthalmol Vis Sci 2018 Apr 1;59(5):1704-1716.PMID:29610853DOI:10.1167/iovs.18-23772.
Purpose: The nitric oxide/soluble guanylate cyclase/protein kinase G (NO/sGC/PKG) is known to be involved in the regulation of intraocular pressure (IOP) and may be dysregulated in glaucoma. The purpose is to demonstrate that the sGC activator MGV354 lowers IOP in a monkey model of glaucoma and could be considered as a possible new clinical drug candidate. Methods: Changes to cGMP were assessed in primary human trabecular meshwork (hNTM) cells and binding studies were conducted using human sGC full-length protein. Ocular safety tolerability, exposure, and efficacy studies were conducted in rabbit and monkey models following topical ocular dosing of MGV354. Results: sGC was highly expressed in the human and cynomolgus monkey outflow pathways. MGV354 had a 7-fold greater Bmax to oxidized sGC compared to that of reduced sGC and generated an 8- to 10-fold greater cGMP compared to that of a reduced condition in hTM cells. A single topical ocular dose with MGV354 caused a significant dose-dependent reduction of 20% to 40% (versus vehicle), lasting up to 6 hours in pigmented rabbits and 24 hours postdose in a cynomolgus monkey model of glaucoma. The MGV354-induced IOP lowering was sustained up to 7 days following once-daily dosing in a monkey model of glaucoma and was greater in magnitude compared to Travatan (travoprost)-induced IOP reduction. Mild to moderate ocular hyperemia was the main adverse effect noted. Conclusions: MGV354 represents a novel class of sGC activators that can lower IOP in preclinical models of glaucoma. The potential for sGC activators to be used as effective IOP-lowering drugs in glaucoma patients could be further determined in clinical studies.