Lesogaberan
(Synonyms: P-[(2R)-3-氨基-2-氟丙基]磷酸,AZD-3355) 目录号 : GC61624
Lesogaberan(AZD-3355)是一种有效的选择性GABAB受体激动剂，对人重组GABAB受体的EC50为8.6nM。对大鼠脑GABAB和GABAA受体的结合亲和力(Ki)分别为5.1nM和1.4μM。
Cas No.:344413-67-8
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
- View current batch:
- Purity: >98.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
Lesogaberan (AZD-3355) is a potent and selective GABAB receptor agonist with an EC50 of 8.6 nM for human recombinant GABAB receptors. Binding affinity (Kis) of 5.1 nM and 1.4 μM for rat brain GABAB and GABAA receptors, respectively[1].
Lesogaberan (3-30 nM) enhances human islet cell proliferation in vitro[2]. Cell Proliferation Assay[2] Cell Line: Human islet cells
Lesogaberan (AZD3355) potently stimulates recombinant human GABAB receptors and inhibits transient lower esophageal sphincter relaxation (TLESR) in dogs, with a biphasic dose-response curve[1].Oral Lesogaberan (0.08 mg/mL; 48 hours) protects human islet β-cells from apoptosis in islet grafts in mice[2]. Lesogaberan (7 μmol/kg) shows high oral availability (88% in the dog and 100% in the rat) and relatively low systemic clearance in female SpragueDawley rats[1]. Animal Model: Diabetic NOD/scid mice were implanted with human islets[2]
[1]. Lehmann A, et al. (R)-(3-amino-2-fluoropropyl) phosphinic acid (AZD3355), a novel GABAB receptor agonist, inhibits transient lower esophageal sphincter relaxation through a peripheral mode of action. J Pharmacol Exp Ther. 2009 Nov;331(2):504-12. [2]. Tian J, et al. Repurposing Lesogaberan to Promote Human Islet Cell Survival and β-Cell Replication. J Diabetes Res. 2017;2017:6403539.
| Cas No. | 344413-67-8 | SDF | |
| 别名 | P-[(2R)-3-氨基-2-氟丙基]磷酸,AZD-3355 | ||
| Canonical SMILES | O=P(C[C@H](F)CN)O | ||
| 分子式 | C3H9FNO2P | 分子量 | 141.08 |
| 溶解度 | 储存条件 | Store at -20°C | |
| General tips | 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°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。 为了提高溶解度，请将管子加热至37℃，然后在超声波浴中震荡一段时间。 |
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| Shipping Condition | 评估样品解决方案：配备蓝冰进行发货。所有其他可用尺寸：配备RT，或根据请求配备蓝冰。 | ||
| 制备储备液 | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 7.0882 mL | 35.4409 mL | 70.8818 mL |
| 5 mM | 1.4176 mL | 7.0882 mL | 14.1764 mL |
| 10 mM | 0.7088 mL | 3.5441 mL | 7.0882 mL |
| 第一步：请输入基本实验信息（考虑到实验过程中的损耗，建议多配一只动物的药量） | ||||||||||
| 给药剂量 | mg/kg |  |
动物平均体重 | g | |
每只动物给药体积 | ul | |
动物数量 | 只 |
| 第二步：请输入动物体内配方组成（配方适用于不溶于水的药物；不同批次药物配方比例不同，请联系GLPBIO为您提供正确的澄清溶液配方） | ||||||||||
| % DMSO % % Tween 80 % saline | ||||||||||
| 计算重置 | ||||||||||
计算结果:
工作液浓度： mg/ml；
DMSO母液配制方法： mg 药物溶于 μL DMSO溶液（母液浓度 mg/mL，
体内配方配制方法：取 μL DMSO母液，加入 μL PEG300，混匀澄清后加入μL Tween 80，混匀澄清后加入 μL saline，混匀澄清。
1. 首先保证母液是澄清的；
2.
一定要按照顺序依次将溶剂加入，进行下一步操作之前必须保证上一步操作得到的是澄清的溶液，可采用涡旋、超声或水浴加热等物理方法助溶。
3. 以上所有助溶剂都可在 GlpBio 网站选购。
Reducing Adverse Effects During Drug Development: The Example of Lesogaberan and Paresthesia
Clin Ther 2016 Apr;38(4):946-60.PMID:26947796DOI:10.1016/j.clinthera.2016.02.012.
Purpose: Lesogaberan, a γ-aminobutyric acid (GABA)B receptor agonist, was developed for the treatment of gastroesophageal reflux disease in patients with a partial response to proton pump inhibitor therapy. A high prevalence of paresthesia was observed in healthy individuals after dosing with Lesogaberan in early-phase clinical trials. The aim of this review was to gain further insight into paresthesia caused by Lesogaberan by summarizing the relevant preclinical and clinical data. Methods: This study was a narrative review of the literature and unpublished data. Findings: The occurrence of paresthesia may depend on the route or rate of drug administration; several studies were conducted to test this hypothesis, and formulations were developed to minimize the occurrence of paresthesia. Phase I clinical studies showed that, in healthy individuals, paresthesia occurred soon after administration of Lesogaberan in a dose-dependent manner regardless of the route of administration. The occurrence of paresthesia could be decreased by fractionating the dose or reducing the rate of administration. These findings suggest that the initial rate of absorption plays an important part in the development of paresthesia. Modified-release formulations minimize the occurrence of paresthesia while retaining the anti-reflux activity of the drug, as measured by esophageal pH and the number of transient lower esophageal sphincter relaxations. Implications: The development of Lesogaberan was halted because the effect on gastroesophageal reflux disease symptoms observed in Phase II studies was not considered clinically meaningful in the target patient population. Nevertheless, it is an example of successful formulation development designed to minimize the occurrence of a compound's adverse effect while retaining its pharmacodynamic action.
Repurposing Lesogaberan to Promote Human Islet Cell Survival and β-Cell Replication
J Diabetes Res 2017;2017:6403539.PMID:29018828DOI:10.1155/2017/6403539.
The activation of β-cell's A- and B-type gamma-aminobutyric acid receptors (GABAA-Rs and GABAB-Rs) can promote their survival and replication, and the activation of α-cell GABAA-Rs promotes their conversion into β-cells. However, GABA and the most clinically applicable GABA-R ligands may be suboptimal for the long-term treatment of diabetes due to their pharmacological properties or potential side-effects on the central nervous system (CNS). Lesogaberan (AZD3355) is a peripherally restricted high-affinity GABAB-R-specific agonist, originally developed for the treatment of gastroesophageal reflux disease (GERD) that appears to be safe for human use. This study tested the hypothesis that Lesogaberan could be repurposed to promote human islet cell survival and β-cell replication. Treatment with Lesogaberan significantly enhanced replication of human islet cells in vitro, which was abrogated by a GABAB-R antagonist. Immunohistochemical analysis of human islets that were grafted into immune-deficient mice revealed that oral treatment with Lesogaberan promoted human β-cell replication and islet cell survival in vivo as effectively as GABA (which activates both GABAA-Rs and GABAB-Rs), perhaps because of its more favorable pharmacokinetics. Lesogaberan may be a promising drug candidate for clinical studies of diabetes intervention and islet transplantation.
Translational gastrointestinal pharmacology in the 21st century: 'the Lesogaberan story'
Curr Opin Pharmacol 2011 Dec;11(6):630-3.PMID:22036168DOI:10.1016/j.coph.2011.10.011.
The development of the novel γ-aminobutyric acid type-B receptor (GABAB) agonist Lesogaberan is presented as an example of a partly successful translational strategy in the field of gastroenterology. Data on transient lower esophageal sphincter relaxations (TLESRs) and gastroesophageal reflux inhibition from preclinical models translated well to clinical studies in healthy volunteers and patients with gastroesophageal reflux disease (GERD). Animal models have also been used successfully to predict the effect of other target mechanisms on TLESRs in humans. However, while translation of physiology to symptomatology in patients with GERD was achieved, the effect size was too small to be of clinical significance. A deeper understanding of the cause of symptoms in different patient categories is therefore required.
Efficacy and safety of Lesogaberan in gastro-oesophageal reflux disease: a randomised controlled trial
Gut 2013 Sep;62(9):1248-55.PMID:22730470DOI:10.1136/gutjnl-2012-302737.
Objective: Lesogaberan (AZD3355) is a novel γ-aminobutyric acid B-type receptor agonist designed to treat gastro-oesophageal reflux disease (GERD) by inhibiting transient lower oesophageal sphincter relaxations. A randomised, double-blind, placebo-controlled, multi-centre phase IIb study was performed to assess the efficacy and safety of Lesogaberan as an add-on to proton pump inhibitor (PPI) therapy in patients with GERD who are partially responsive to PPI therapy (ClinicalTrials.gov reference: NCT01005251). Design: In total, 661 patients were randomised to receive 4 weeks of placebo or 60, 120, 180 or 240 mg of Lesogaberan twice daily, in addition to ongoing PPI therapy. Symptoms were measured using the Reflux Symptom Questionnaire electronic Diary. Response to treatment was defined as having an average of ≥ 3 additional days per week of not more than mild GERD symptoms during treatment compared with baseline. Results: In the primary analysis, 20.9%, 25.6%, 23.5% and 26.2% of patients responded to the 60, 120, 180 and 240 mg twice daily Lesogaberan doses, respectively, and 17.9% responded to placebo. The response to the 240 mg twice daily dose was statistically significantly greater than the response to placebo using a one-sided test at the predefined significance level of p < 0.1. However, the absolute increases in the proportions of patients who responded to Lesogaberan compared with placebo were low. Lesogaberan was generally well tolerated, although six patients receiving Lesogaberan developed reversible elevated alanine transaminase levels. Conclusions: In patients with GERD symptoms partially responsive to PPI therapy, Lesogaberan was only marginally superior to placebo in achieving an improvement in symptoms.
Evaluation of the pharmacokinetic interaction between Lesogaberan (AZD3355) and esomeprazole in healthy subjects
Drugs R D 2010;10(4):243-51.PMID:21171670DOI:10.2165/11588180-000000000-00000.
Background: Transient lower esophageal sphincter relaxations (TLESRs) have been identified as a primary cause of reflux events in patients with gastroesophageal reflux disease (GERD). GABA(B) receptor agonists such as Lesogaberan (AZD3355) have been shown to inhibit TLESRs in healthy subjects and patients with GERD, and, therefore, offer a novel therapeutic add-on strategy to acid suppression for the management of GERD. As Lesogaberan is being developed as an add-on treatment for the management of patients with GERD who have a partial response to proton pump inhibitor (PPI) therapy, it is important to rule out any clinically important pharmacokinetic drug-drug interaction between Lesogaberan and PPIs. Objective: To evaluate the effect of esomeprazole on the pharmacokinetics and safety of Lesogaberan and vice versa. Study design: This was an open-label, randomized, three-way crossover study. The study was open to healthy adult male and female subjects. The study subjects received treatment with, in random order, Lesogaberan (150 mg twice daily [dose interval 12 hours]), esomeprazole (40 mg once daily), and a combination of both, during 7-day treatment periods. Main outcome: The presence or absence of pharmacokinetic interactions between Lesogaberan and esomeprazole was assessed by measuring the steady-state area under the plasma concentration-time curves during the dosing interval (AUC(τ)) and the maximum observed plasma concentration (C(max)) for Lesogaberan and esomeprazole. Results: Thirty male subjects (mean age 23.2 years, 97% Caucasian) were randomized to treatment and 28 subjects completed the study (one subject was lost to follow-up, and one subject discontinued due to an adverse event). The 95% confidence intervals of the geometric mean ratios for AUC(τ) and C(max) of Lesogaberan and esomeprazole administered alone and concomitantly were within the recognized boundaries of bioequivalence (0.8-1.25). No new safety concerns were raised during this study. The number of patients with adverse events during treatment with Lesogaberan alone (n = 17) and concomitantly with esomeprazole (n = 18) were comparable but higher than with esomeprazole alone (n = 10). Paresthesia (episodic, mild, and transient), pharyngitis, and flatulence were the most frequently reported adverse events. Conclusions: There was no observed pharmacokinetic interaction between Lesogaberan and esomeprazole when concomitantly administered to healthy subjects, and concomitant therapy was well tolerated. TRIAL REGISTRATION NUMBER (clinicaltrials.gov): NCT00684190.