Clopidogrel
(Synonyms: 氯吡格雷) 目录号 : GC35710
Clopidogrel Bisulfate (SR-25990C, Clopidogrel hydrogen sulfate, Iscover, Plavix) is an oral, thienopyridine class antiplatelet agent.
Cas No.:113665-84-2
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
- View current batch:
- Purity: >99.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
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Animal experiment: |
Mice[1]13-week-old C57BL/6J male mice are used throughout the study. After 1 week of acclimation, 15 mice are injected I.P. with streptozotocin (STZ) at a dosage of 55 mg/kg body weight daily for five consecutive days. Additional 15 mice as controls (Ctrl) are injected with a vehicle solution (0.1 mol/L citrate acid buffer, pH 4.3-4.5). Seven days after the last STZ administration, hyperglycemic mice (3-hour fasting blood glucose ≥250 mg/dL) are considered T1D (DM). This time point is defined as a baseline. Three months after diabetes induction, five diabetic and five control mice are sacrificed and blood and kidneys harvested. The remaining animals are divided in four groups: Normal control with vehicle (Ctrl), Normal control with Clopidogrel (Ctrl+ Clo), T1D (DM) with vehicle, and DM with Clopidogrel treatment (DM+Clo) and are treated with 20 mg/kg b.w./day Clopidogrel or with vehicle administered in their drinking water for three additional months. At the end of experiment, mice are intraperitoneally anesthetized with Avertin (tribromoethanol, 350 mg/kg) and sacrificed to collect blood and kidneys for mRNA, protein, and histological analyses[1]. |
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References: [1]. Zongyu Zheng, et al. Clopidogrel Reduces Fibronectin Accumulation and Improves Diabetes-Induced Renal Fibrosis. Int J Biol Sci. 2019 Jan. |
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Clopidogrel Bisulfate (SR-25990C, Clopidogrel hydrogen sulfate, Iscover, Plavix) is an oral, thienopyridine class antiplatelet agent.
Clopidogrel is converted to its active metabolite by cytochrome P450 (CYP) enzymes. [1] Clopidogrel (1 μM) also inhibits EGF-stimulated EGF receptor, PERK expression, and cell proliferation in RGM-1 cells (P<0.05), and causes much less inhibition of EGF-stimulated cell proliferation in EGF receptor over-expressed RGM-1 cells than in RGM-1 cells (22% vs. 32% reduction). [2] Clopidogrel increases blood vessel number, reduces polymorphonuclear count and decreases attachment and bone loss, also decreases osteoclast number in rats submitted or not to periodontal repair. Clopidogrel decreases CXCL4, CXCL12 and PDGF content compared with saline-treated rats, without affecting CXCL5. [3]
Clopidogrel (2mg and 10mg/kg/day) significantly decreases ulcer-induced gastric epithelial cell proliferation and ulcer-stimulated expressions of EGF receptor and phosphorylated extracellular signal-regulated kinase (PERK) at the ulcer margin of rats. [2] Clopidogrel improves endothelial function and NO bioavailability in rats with congestive heart failure. Clopidogrel-treated Congestive heart failure (CHF) rat displays enhances phosphorylation of AKT and eNOS. [4] The clopidogrel/aspirin combination shows only additive-type effects on bleeding time prolongation induced by ear transection in the rabbit, therefore showing that combined inhibition of cyclooxygenase and ADP's effects provide a marked enhanced antithrombotic efficacy. [5]
[1] Laine L, et al. Am J Gastroenterol, 2010, 105(1), 34-41. [2] Luo JC, et al. Eur J Pharmacol, 2012, 695(1-3), 112-119. [3] Coimbra LS, et al. J Clin Periodontol, 2014, 41(3), 295-302.
| Cas No. | 113665-84-2 | SDF | |
| 别名 | 氯吡格雷 | ||
| Canonical SMILES | ClC1=C(C=CC=C1)[C@H](N2CCC3=C(C2)C=CS3)C(OC)=O | ||
| 分子式 | C16H16ClNO2S | 分子量 | 321.82 |
| 溶解度 | DMSO: 50mg/ml in DMSO | 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 | 3.1073 mL | 15.5366 mL | 31.0733 mL |
| 5 mM | 0.6215 mL | 3.1073 mL | 6.2147 mL |
| 10 mM | 0.3107 mL | 1.5537 mL | 3.1073 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；
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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。
Clopidogrel Pharmacogenetics
Circ Cardiovasc Interv 2019 Apr;12(4):e007811.PMID:30998396DOI:10.1161/CIRCINTERVENTIONS.119.007811.
Common genetic variation in CYP2C19 (cytochrome P450, family 2, subfamily C, polypeptide 19) *2 and *3 alleles leads to a loss of functional protein, and carriers of these loss-of-function alleles when treated with Clopidogrel have significantly reduced Clopidogrel active metabolite levels and high on-treatment platelet reactivity resulting in increased risk of major adverse cardiovascular events, especially after percutaneous coronary intervention. The Food and Drug Administration has issued a black box warning advising practitioners to consider alternative treatment in CYP2C19 poor metabolizers who might receive Clopidogrel and to identify such patients by genotyping. However, routine clinical use of genotyping for CYP2C19 loss-of-function alleles in patients undergoing percutaneous coronary intervention is not recommended by clinical guidelines because of lack of prospective evidence. To address this critical gap, TAILOR-PCI (Tailored Antiplatelet Initiation to Lessen Outcomes due to Decreased Clopidogrel Response After Percutaneous Coronary Intervention) is a large, pragmatic, randomized trial comparing point-of-care genotype-guided antiplatelet therapy with routine care to determine whether identifying CYP2C19 loss-of-function allele patients prospectively and prescribing alternative antiplatelet therapy is beneficial.
The Role of Clopidogrel in 2020: A Reappraisal
Cardiovasc Ther 2020 Mar 16;2020:8703627.PMID:32284734DOI:10.1155/2020/8703627.
Antiplatelet therapy is the mainstay of treatment and secondary prevention of cardiovascular disease (CVD), including acute coronary syndrome (ACS), transient ischemic attack (TIA) or minor stroke, and peripheral artery disease (PAD). The P2Y12 inhibitors, of which Clopidogrel was the first, play an integral role in antiplatelet therapy and therefore in the treatment and secondary prevention of CVD. This review discusses the available evidence concerning antiplatelet therapy in patients with CVD, with a focus on the role of Clopidogrel. In combination with aspirin, Clopidogrel is often used as part of dual antiplatelet therapy (DAPT) for the secondary prevention of ACS. Although newer, more potent P2Y12 inhibitors (prasugrel and ticagrelor) show a greater reduction in ischemic risk compared with Clopidogrel in randomized trials of ACS patients, these newer P2Y12 inhibitors are often associated with an increased risk of bleeding. Deescalation of DAPT by switching from prasugrel or ticagrelor to Clopidogrel may be required in some patients with ACS. Furthermore, real-world studies of ACS patients have not confirmed the benefits of the newer P2Y12 inhibitors over Clopidogrel. In patients with very high-risk TIA or stroke, short-term DAPT with Clopidogrel plus aspirin for 21-28 days, followed by Clopidogrel monotherapy for up to 90 days, is recommended. Clopidogrel monotherapy may also be used in patients with symptomatic PAD. In conclusion, there is strong evidence supporting the use of Clopidogrel antiplatelet therapy in several clinical settings, which emphasizes the importance of this medication in clinical practice.
Effect of 1-Month Dual Antiplatelet Therapy Followed by Clopidogrel vs 12-Month Dual Antiplatelet Therapy on Cardiovascular and Bleeding Events in Patients Receiving PCI: The STOPDAPT-2 Randomized Clinical Trial
JAMA 2019 Jun 25;321(24):2414-2427.PMID:31237644DOI:10.1001/jama.2019.8145.
Importance: Very short mandatory dual antiplatelet therapy (DAPT) after percutaneous coronary intervention (PCI) with a drug-eluting stent may be an attractive option. Objective: To test the hypothesis of noninferiority of 1 month of DAPT compared with standard 12 months of DAPT for a composite end point of cardiovascular and bleeding events. Design, setting, and participants: Multicenter, open-label, randomized clinical trial enrolling 3045 patients who underwent PCI at 90 hospitals in Japan from December 2015 through December 2017. Final 1-year clinical follow-up was completed in January 2019. Interventions: Patients were randomized either to 1 month of DAPT followed by Clopidogrel monotherapy (n=1523) or to 12 months of DAPT with aspirin and Clopidogrel (n=1522). Main outcomes and measures: The primary end point was a composite of cardiovascular death, myocardial infarction (MI), ischemic or hemorrhagic stroke, definite stent thrombosis, or major or minor bleeding at 12 months, with a relative noninferiority margin of 50%. The major secondary cardiovascular end point was a composite of cardiovascular death, MI, ischemic or hemorrhagic stroke, or definite stent thrombosis and the major secondary bleeding end point was major or minor bleeding. Results: Among 3045 patients randomized, 36 withdrew consent; of 3009 remaining, 2974 (99%) completed the trial. One-month DAPT was both noninferior and superior to 12-month DAPT for the primary end point, occurring in 2.36% with 1-month DAPT and 3.70% with 12-month DAPT (absolute difference, -1.34% [95% CI, -2.57% to -0.11%]; hazard ratio [HR], 0.64 [95% CI, 0.42-0.98]), meeting criteria for noninferiority (P < .001) and for superiority (P = .04). The major secondary cardiovascular end point occurred in 1.96% with 1-month DAPT and 2.51% with 12-month DAPT (absolute difference, -0.55% [95% CI, -1.62% to 0.52%]; HR, 0.79 [95% CI, 0.49-1.29]), meeting criteria for noninferiority (P = .005) but not for superiority (P = .34). The major secondary bleeding end point occurred in 0.41% with 1-month DAPT and 1.54% with 12-month DAPT (absolute difference, -1.13% [95% CI, -1.84% to -0.42%]; HR, 0.26 [95% CI, 0.11-0.64]; P = .004 for superiority). Conclusions and relevance: Among patients undergoing PCI, 1 month of DAPT followed by Clopidogrel monotherapy, compared with 12 months of DAPT with aspirin and Clopidogrel, resulted in a significantly lower rate of a composite of cardiovascular and bleeding events, meeting criteria for both noninferiority and superiority. These findings suggest that a shorter duration of DAPT may provide benefit, although given study limitations, additional research is needed in other populations. Trial registration: ClinicalTrials.gov Identifier: NCT02619760.
Compared efficacy of Clopidogrel and ticagrelor in treating acute coronary syndrome: a meta-analysis
BMC Cardiovasc Disord 2018 Nov 29;18(1):217.PMID:30497387DOI:10.1186/s12872-018-0948-4.
Background & aims: Ticagrelor has been acknowledged as a new oral antagonist of P2Y12-adenosine diphosphate receptor, as a strategy with more rapid onset as well as more significant platelet inhibition function in acute coronary syndrome (ACS) patients. The clinical benefit of ticagrelor compared with Clopidogrel remains controversial. The current meta-analysis was conducted to better evaluate the role of ticagrelor in comparison of Clopidogrel in treating ACS patients. Methods: The publications involving the safety as well as the efficacy of Clopidogrel versus ticagrelor were screened and identified updated to June 2018. After rigorous review, eligible randomized controlled trials (RCTs) were extracted and propensity score matching (PSM) analysis was conducted. To analyze the summary odds ratios (ORs) of the endpoints of interest, we applied Meta-analysis Revman 5.3 software. Results: There were a total of 10 studies that met our inclusion criteria, of which the risk of bleeding rate (P = 0.43), MI (P = 0.14), and stroke (P = 0.70) had no association with significant differences between patients receiving ticagrelor or Clopidogrel. Nonetheless, higher rate of dyspnea was observed in ticagrelor group (OR = 1.87, 95% CI: 1.70-2.05, P<0.00001 = . Conclusions: Our present findings suggest similar efficacy and safety profiles for Clopidogrel and ticagrelor Ticagrelor should be considered as a valuable option to reduce the risk of bleeding, MI and stroke, whereas potentially increases the incidence of dyspnea. Given the metabolic process, ticagrelor may be a valid and even more potent antiplatelet drug than Clopidogrel, as an alternative strategy in treating patients with Clopidogrel intolerance or resistance.
Aspirin with or without Clopidogrel after Transcatheter Aortic-Valve Implantation
N Engl J Med 2020 Oct 8;383(15):1447-1457.PMID:32865376DOI:10.1056/NEJMoa2017815.
Background: The effect of single as compared with dual antiplatelet treatment on bleeding and thromboembolic events after transcatheter aortic-valve implantation (TAVI) in patients who do not have an indication for long-term anticoagulation has not been well studied. Methods: In a randomized, controlled trial, we assigned a subgroup of patients who were undergoing TAVI and did not have an indication for long-term anticoagulation, in a 1:1 ratio, to receive aspirin alone or aspirin plus Clopidogrel for 3 months. The two primary outcomes were all bleeding (including minor, major, and life-threatening or disabling bleeding) and non-procedure-related bleeding over a period of 12 months. Most bleeding at the TAVI puncture site was counted as non-procedure-related. The two secondary outcomes were a composite of death from cardiovascular causes, non-procedure-related bleeding, stroke, or myocardial infarction (secondary composite 1) and a composite of death from cardiovascular causes, ischemic stroke, or myocardial infarction (secondary composite 2) at 1 year, with both outcomes tested sequentially for noninferiority (noninferiority margin, 7.5 percentage points) and superiority. Results: A total of 331 patients were assigned to receive aspirin alone and 334 were assigned to receive aspirin plus Clopidogrel. A bleeding event occurred in 50 patients (15.1%) receiving aspirin alone and in 89 (26.6%) receiving aspirin plus Clopidogrel (risk ratio, 0.57; 95% confidence interval [CI], 0.42 to 0.77; P = 0.001). Non-procedure-related bleeding occurred in 50 patients (15.1%) and 83 patients (24.9%), respectively (risk ratio, 0.61; 95% CI, 0.44 to 0.83; P = 0.005). A secondary composite 1 event occurred in 76 patients (23.0%) receiving aspirin alone and in 104 (31.1%) receiving aspirin plus Clopidogrel (difference, -8.2 percentage points; 95% CI for noninferiority, -14.9 to -1.5; P<0.001; risk ratio, 0.74; 95% CI for superiority, 0.57 to 0.95; P = 0.04). A secondary composite 2 event occurred in 32 patients (9.7%) and 33 patients (9.9%), respectively (difference, -0.2 percentage points; 95% CI for noninferiority, -4.7 to 4.3; P = 0.004; risk ratio, 0.98; 95% CI for superiority, 0.62 to 1.55; P = 0.93). A total of 44 patients (13.3%) and 32 (9.6%), respectively, received oral anticoagulation during the trial. Conclusions: Among patients undergoing TAVI who did not have an indication for oral anticoagulation, the incidence of bleeding and the composite of bleeding or thromboembolic events at 1 year were significantly less frequent with aspirin than with aspirin plus Clopidogrel administered for 3 months. (Funded by the Netherlands Organization for Health Research and Development; POPular TAVI EU Clinical Trials Register number, 2013-003125-28; ClinicalTrials.gov number, NCT02247128.).