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Liu X, Lv X, Peng Y, Wang J, Lei J, Tang C, Luo S, Mai W, Cai Y, Fan Q, Liu C, Zhang L. Clopidogrel with indobufen or aspirin in minor ischemic stroke or high-risk transient ischemic attack: a randomized controlled clinical study. BMC Neurol 2024; 24:81. [PMID: 38429754 PMCID: PMC10905919 DOI: 10.1186/s12883-024-03585-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 02/23/2024] [Indexed: 03/03/2024] Open
Abstract
BACKGROUND Ischemic stroke and transient ischemic attack (TIA) are the most prevalent cerebrovascular diseases. The conventional antiplatelet drugs are associated with an inherent bleeding risk, while indobufen is a new antiplatelet drug and has the similar mechanism of antiplatelet aggregation as aspirin with more safety profile. However, there have been no studies evaluating the combination therapy of indobufen and clopidogrel for antiplatelet therapy in cerebrovascular diseases. OBJECTIVE The CARMIA study aims to investigate the effectiveness and safety of a new dual antiplatelet therapy consisting of indobufen and clopidogrel comparing with the conventional dual antiplatelet therapy consisting of aspirin and clopidogrel in patients with minor ischemic stroke or high-risk TIA. METHODS An open-label randomized controlled clinical trial was conducted at a clinical center. We randomly assigned patients who had experienced a minor stroke or transient ischemic attack (TIA) within 72 h of onset, or within 1 month if they had intracranial stenosis (IS), to receive either indobufen 100 mg twice daily or aspirin 100 mg once daily for 21 days. For patients with IS, the treatment duration was extended to 3 months. All patients received a loading dose of 300 mg clopidogrel orally on the first day, followed by 75 mg once daily from the second day to 1 year. We collected prospective data using paper-based case report forms, and followed up on enrolled patients was conducted to assess the incidence of recurrent ischemic stroke or TIA, mRS score, NIHSS (National Institutes of Health Stroke Scale) score, and any bleeding events occurring within 3 month after onset. RESULTS We enrolled 202 patients diagnosed with ischemic stroke or transient ischemic attack. After applying the criteria, 182 patients were eligible for data analysis. Endpoint events (recurrence of ischemic stroke/TIA, myocardial infarction, or death) were observed in 6 patients (6.5%) receiving aspirin and clopidogrel, including 4 (4.3%) with stroke recurrence, 1 (1.1%) with TIA recurrence, and 1 (1%) with death. In contrast, no endpoint events were reported in the indobufen and clopidogrel group (P = 0.029). The group of patients receiving indobufen and clopidogrel exhibited significantly lower modified Rankin Scale (mRS) score. (scores range from 0 to 6, with higher scores indicating more severe disability) compared to the aspirin and clopidogrel group (common odds ratio 3.629, 95% CI 1.874-7.036, P < 0.0001). Although the improvement rate of NIHSS score in the indobufen and clopidogrel group was higher than that in the aspirin and clopidogrel group, the difference was not statistically significant (P > 0.05). Bleeding events were observed in 8 patients (8.6%) receiving aspirin and clopidogrel, including 4 (4.3%) with skin bleeding, 2 (2.2%) with gingival bleeding, 1 (1.1%) with gastrointestinal bleeding, and 1 (1.1%) with urinary system bleeding. On the other hand, only 1 patient (1.1%) in the indobufen and clopidogrel group experienced skin bleeding (P = 0.035). CONCLUSION The combination of indobufen and clopidogrel has shown non-inferior and potentially superior effectiveness and safety compared to aspirin combined with clopidogrel in patients with minor ischemic stroke and high-risk TIA in the CARMIA study (registered under chictr.org.cn with registration number ChiCTR2100043087 in 01/02/2021).
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Affiliation(s)
- Xudong Liu
- The Fifth Affiliated Hospital of Sun Yat-sen University, No. 52 Meihua East Road, Zhuhai City, Guangdong Province, China
| | - Xuxian Lv
- The Fifth Affiliated Hospital of Sun Yat-sen University, No. 52 Meihua East Road, Zhuhai City, Guangdong Province, China
| | - Yanfang Peng
- The Fifth Affiliated Hospital of Sun Yat-sen University, No. 52 Meihua East Road, Zhuhai City, Guangdong Province, China
| | - Jianing Wang
- The Fifth Affiliated Hospital of Sun Yat-sen University, No. 52 Meihua East Road, Zhuhai City, Guangdong Province, China
| | - Junjie Lei
- The Fifth Affiliated Hospital of Sun Yat-sen University, No. 52 Meihua East Road, Zhuhai City, Guangdong Province, China
| | - Chaogang Tang
- The Fifth Affiliated Hospital of Sun Yat-sen University, No. 52 Meihua East Road, Zhuhai City, Guangdong Province, China
| | - Shijian Luo
- The Fifth Affiliated Hospital of Sun Yat-sen University, No. 52 Meihua East Road, Zhuhai City, Guangdong Province, China
| | - Weihua Mai
- The Fifth Affiliated Hospital of Sun Yat-sen University, No. 52 Meihua East Road, Zhuhai City, Guangdong Province, China
| | - Yiming Cai
- The Fifth Affiliated Hospital of Sun Yat-sen University, No. 52 Meihua East Road, Zhuhai City, Guangdong Province, China
| | - Qian Fan
- The Fifth Affiliated Hospital of Sun Yat-sen University, No. 52 Meihua East Road, Zhuhai City, Guangdong Province, China
| | - Chenhao Liu
- The Fifth Affiliated Hospital of Sun Yat-sen University, No. 52 Meihua East Road, Zhuhai City, Guangdong Province, China
| | - Lei Zhang
- The Fifth Affiliated Hospital of Sun Yat-sen University, No. 52 Meihua East Road, Zhuhai City, Guangdong Province, China.
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Wu H, Xu L, Zhao X, Zhang H, Cheng K, Wang X, Chen M, Li G, Huang J, Lan J, Wei G, Zhang C, Wang Y, Qian J, Ge J. Indobufen or Aspirin on Top of Clopidogrel After Coronary Drug-Eluting Stent Implantation (OPTION): A Randomized, Open-Label, End Point-Blinded, Noninferiority Trial. Circulation 2023; 147:212-222. [PMID: 36335890 DOI: 10.1161/circulationaha.122.062762] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Dual antiplatelet therapy (DAPT) with aspirin as a background therapy has become the standard care after percutaneous coronary intervention. However, some adverse noncardiac effects limited the use of aspirin in clinical practice. Thus, evaluation of pharmacological alternatives to aspirin is attractive. Previous data indicated that indobufen could lessen the unwanted side effects of aspirin while retaining the antithrombotic efficacy, but its combination with a P2Y12 inhibitor still lacks randomized clinical trial evidence. METHODS In this randomized, open-label, noninferiority trial, patients with negative cardiac troponin undergoing coronary drug-eluting stent implantation were randomly assigned in a 1:1 ratio to receive either indobufen-based DAPT (indobufen 100 mg twice a day plus clopidogrel 75 mg/d for 12 months) or conventional DAPT (aspirin 100 mg/d plus clopidogrel 75 mg/d for 12 months). The primary end point was a 1-year composite of cardiovascular death, nonfatal myocardial infarction, ischemic stroke, definite or probable stent thrombosis, or Bleeding Academic Research Consortium criteria type 2, 3, or 5 bleeding. The end points were adjudicated by an independent Clinical Event Committee. RESULTS Between January 11, 2018, and October 12, 2020, 4551 patients were randomized in 103 cardiovascular centers: 2258 patients to the indobufen-based DAPT group and 2293 to the conventional DAPT group. The primary end point occurred in 101 patients (4.47%) in the indobufen-based DAPT group and 140 patients (6.11%) in the conventional DAPT group (absolute difference, -1.63%; Pnoninferiority<0.001; hazard ratio, 0.73 [95% CI, 0.56-0.94]; P=0.015). Cardiovascular death, nonfatal myocardial infarction, ischemic stroke, and stent thrombosis were observed in 0.13%, 0.40%, 0.80%, and 0.22% of patients in the indobufen-based DAPT group and 0.17%, 0.44%, 0.83%, and 0.17% of patients in the conventional DAPT group (all P>0.05). The occurrence of Bleeding Academic Research Consortium criteria type 2, 3, or 5 bleeding events was lower in the indobufen-based DAPT group compared with the conventional DAPT group (2.97% versus 4.71%; hazard ratio, 0.63 [95% CI, 0.46-0.85]; P=0.002), with the main decrease in type 2 bleeding (1.68% versus 3.49%; hazard ratio, 0.48 [95% CI, 0.33-0.70]; P<0.001). CONCLUSIONS In Chinese patients with negative cardiac troponin undergoing drug-eluting stent implantation, indobufen plus clopidogrel DAPT compared with aspirin plus clopidogrel DAPT significantly reduced the risk of 1-year net clinical outcomes, which was driven mainly by a reduction in bleeding events without an increase in ischemic events. REGISTRATION URL: https://www.chictr.org.cn; Unique identifier: ChiCTR-IIR-17013505.
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Affiliation(s)
- Hongyi Wu
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, National Clinical Research Center for Interventional Medicine, China (H.Y.W., L.L.X., X.Z., C.Z., Y.M.W., J.Y.Q., J.B.G.)
| | - Lili Xu
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, National Clinical Research Center for Interventional Medicine, China (H.Y.W., L.L.X., X.Z., C.Z., Y.M.W., J.Y.Q., J.B.G.)
| | - Xin Zhao
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, National Clinical Research Center for Interventional Medicine, China (H.Y.W., L.L.X., X.Z., C.Z., Y.M.W., J.Y.Q., J.B.G.)
| | - Huanyi Zhang
- Department of Cardiology, Taian City Central Hospital, Shandong, China (H.Y.Z.)
| | - Kang Cheng
- Department of Cardiology, Xi'an No. 3 Hospital, Affiliated Hospital of Northwest University, Xi'an, Shanxi, China (K.C.)
| | - Xiaoyan Wang
- Department of Cardiology, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China (X.Y.W.)
| | - Manhua Chen
- Department of Cardiology, Central Hospital of Wuhan, Hubei, China (M.H.C.)
| | - Guangping Li
- Department of Cardiology, Second Hospital of Tianjin Medical University, China (G.P.L.)
| | - Jiangnan Huang
- Department of Cardiology, First Affiliated Hospital of Guangxi Medical University, Nanning, China (J.N.H.)
| | - Jun Lan
- Department of Cardiology, Dongguan Third People's Hospital, Guangdong, China (J.L.)
| | - Guanghe Wei
- Department of Cardiology, Affiliated Hospital of Jining Medical University, Shandong, China (G.H.W.)
| | - Chi Zhang
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, National Clinical Research Center for Interventional Medicine, China (H.Y.W., L.L.X., X.Z., C.Z., Y.M.W., J.Y.Q., J.B.G.)
| | - Yinman Wang
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, National Clinical Research Center for Interventional Medicine, China (H.Y.W., L.L.X., X.Z., C.Z., Y.M.W., J.Y.Q., J.B.G.)
| | - Juying Qian
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, National Clinical Research Center for Interventional Medicine, China (H.Y.W., L.L.X., X.Z., C.Z., Y.M.W., J.Y.Q., J.B.G.)
| | - Junbo Ge
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, National Clinical Research Center for Interventional Medicine, China (H.Y.W., L.L.X., X.Z., C.Z., Y.M.W., J.Y.Q., J.B.G.)
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Shi QP, Luo XY, Zhang B, Wang XG, Zhao J, Xie QF, Liu JH, Liu YK, Jiang J, Zheng B. Effect of indobufen vs. aspirin on platelet accumulation in patients with stable coronary heart disease after percutaneous coronary intervention: An open-label crossover study. Front Pharmacol 2022; 13:950719. [PMID: 36052139 PMCID: PMC9424757 DOI: 10.3389/fphar.2022.950719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 07/18/2022] [Indexed: 11/30/2022] Open
Abstract
Purpose: This study compared the effect of indobufen with that of aspirin on platelet function in patients with stable coronary heart disease after percutaneous coronary intervention (PCI). Methods: Patients with stable coronary heart disease who had undergone PCI and received dual antiplatelet therapy (aspirin 100 mg + clopidogrel 75 mg once daily) for at least 12 months were allocated to receive indobufen 100 mg twice daily + clopidogrel 75 mg once daily, clopidogrel 75 mg once daily alone, indobufen 100 mg twice daily alone, and aspirin 100 mg once daily alone for 1 month each in an open-label crossover manner. Platelet function was assessed by using the rates of arachidonic acid (AA)-induced platelet aggregation (AA-PAR) and adenosine diphosphate (ADP)-induced platelet aggregation (ADP-PAR) measured by light transmission aggregometry, the platelet reactivity index measured by vasodilator-stimulated phosphoprotein (PRI-VASP), and the plasma and urinary thromboxane B2 (TXB2) concentrations recorded at baseline and during each treatment phase. Results: Of 56 patients enrolled, 52 completed the study. The AA-PAR was lower in the indobufen alone group than in the aspirin alone group [5.21% (3.39, 7.98) vs. 5.27% (4.06, 6.60), p = 0.038], while biologically, a difference of 0.06% may represent no significant difference; there was no significant between-group difference in the plasma [531.16 pg/ml (203.89, 1035.06) vs. 373.93 pg/ml (194.04, 681.71), p = 0.251] or urinary [3951.97 pg/ml (2006.95, 6077.01) vs. 3610.48 pg/ml (1664.60, 6247.61), p = 0.717] TXB2 concentration. When the aspirin + clopidogrel group and indobufen + clopidogrel group were compared, similar results were found for AA-PAR [3.97% (3.05, 5.12) vs. 3.83% (3.10, 5.59), p = 0.947] and both plasma [849.47 pg/ml (335.96, 1634.54) vs. 455.41 pg/ml (212.47, 1489.60), p = 0.629], and urinary [4122.97 pg/ml (2044.96, 7459.86) vs. 3812.81 pg/ml (1358.95, 6021.07), p = 0.165] TXB2 concentrations. ADP-PAR was lower in the clopidogrel alone group than in the indobufen alone group (47.04% ± 16.89 vs. 61.7% ± 10.50, p < 0.001), as was PRI-VASP (66.53% ± 18.06 vs. 77.72% ± 19.87, p = 0.002). Conclusion: These findings suggest that indobufen has antiplatelet effects similar to those of aspirin in patients with stable coronary heart disease after PCI, and may be an alternative for patients with aspirin intolerance after coronary stenting.
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Affiliation(s)
- Qiu-Ping Shi
- Peking University First Hospital, Beijing, China
| | - Xing-Yu Luo
- Peking University First Hospital, Beijing, China
| | - Bin Zhang
- Peking University First Hospital, Beijing, China
| | | | - Jing Zhao
- Peking University First Hospital, Beijing, China
| | - Qiu-Fen Xie
- Peking University First Hospital, Beijing, China
| | - Jia-Hui Liu
- Peking University First Hospital, Beijing, China
| | - Yao-Kun Liu
- Peking University First Hospital, Beijing, China
| | - Jie Jiang
- Peking University First Hospital, Beijing, China
- Institute of Cardiovascular Disease, Peking University First Hospital, Beijing, China
| | - Bo Zheng
- Peking University First Hospital, Beijing, China
- Institute of Cardiovascular Disease, Peking University First Hospital, Beijing, China
- *Correspondence: Bo Zheng,
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Pharmacodynamic effects of indobufen compared with aspirin in patients with coronary atherosclerosis. Eur J Clin Pharmacol 2021; 77:1815-1823. [PMID: 34331551 DOI: 10.1007/s00228-021-03177-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 06/17/2021] [Indexed: 10/20/2022]
Abstract
PURPOSE This study aimed to investigate the pharmacodynamic effects of indobufen and low-dose aspirin in patients with coronary atherosclerosis. METHODS In the first phase, 218 patients with coronary atherosclerosis were randomly assigned to receive aspirin 100 mg once daily (standard dose); 100 mg once every 2 days; 100 mg once every 3 days; 50 mg twice daily; 75 mg once daily; 50 mg once daily; or indobufen 100 mg twice daily for 1 month. In the second phase, 20 healthy subjects were treated with indobufen 100 mg twice daily for 1 week followed after a 2-week washout by aspirin 100 mg once daily for 1 week. The primary outcome was arachidonic acid-induced platelet aggregation (PLAA), and the secondary outcomes included plasma thromboxane B2 (TXB2) and urinary 11-dehydro-TXB2 (11-dh-TXB2) levels at the end of each treatment. RESULTS: In the first phase, compared with aspirin 100 mg once daily: all aspirin groups had similar suppression of PLAA whereas indobufen group had significantly less suppressed PLAA. Aspirin given every second or third day, and indobufen produced less suppression of plasma TXB2. All treatment regimens produced similar inhibition of 11-dh-TXB2. In the second phase, compared with aspirin, indobufen produced less suppression of plasma TXB2 at 8 h and 12 h after the last dose. CONCLUSIONS Aspirin 50 mg twice daily, 75 mg once daily, and aspirin 50 mg once daily produce antiplatelet effects that are similar to aspirin 100 mg once daily. Aspirin given less often than once daily and indobufen 100 mg twice daily do not suppress platelets as effectively as aspirin 100 mg once daily.
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Li F, Xu D, Hou K, Gou X, Lv N, Fang W, Li Y. Pretreatment of Indobufen and Aspirin and their Combinations with Clopidogrel or Ticagrelor Alleviates Inflammasome Mediated Pyroptosis Via Inhibiting NF-κB/NLRP3 Pathway in Ischemic Stroke. J Neuroimmune Pharmacol 2021; 16:835-853. [DOI: 10.1007/s11481-020-09978-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Accepted: 12/17/2020] [Indexed: 12/17/2022]
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Lou X, Jin J, Gong J, Zhao L, Li Y, He Q. Comparison of the Effects of Indobufen and Warfarin in a Rat Model of Adenine-Induced Chronic Kidney Disease. Med Sci Monit 2019; 25:3566-3572. [PMID: 31086128 PMCID: PMC6530882 DOI: 10.12659/msm.915590] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Background Worldwide, the treatment of patients with chronic kidney disease (CKD) remains a challenge as warfarin treatment can be associated with severe adverse events related to bleeding. Alternative anticoagulants that can be used in CKD remain to be identified. This study aimed to compare the effects of indobufen, a new antiplatelet agent, with warfarin in a rat model of adenine-induced CKD. Material/Methods Forty-eight male Wistar rats were treated with intragastric adenine to create the rat model of CKD and were divided into four groups: an untreated control group (N=12), a group treated with dimethyl sulfoxide (DMSO) (N=12), a group treated with indobufen, (N=12) and a group treated with warfarin (N-12). Treatment was given for 4 weeks and 8 weeks. Kidney histology was performed, and the degree of fibrosis was quantified using Masson trichrome staining. Results In the rat model of adenine-induced CKD, Masson trichrome staining showed that the degree of kidney fibrosis in the indobufen group (26%) was significantly reduced (p<0.05) when compared the DMSO group (58%) and the warfarin group (49%). Kidney fibrosis was associated with upregulation of 6-keto-PGI2/TXB2 in the rat kidney tissue. Conclusions In a rat model of adenine-induced CKD, preliminary findings showed that indobufen was associated with reduced kidney fibrosis when compared with warfarin.
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Affiliation(s)
- Xiaowei Lou
- Department of Nephrology, Zhejiang Provincial Peoples' Hospital, Hangzhou, Zhejiang, China (mainland).,Peoples' Hospital of Hangzhou Medical College, Hangzhou, Zhejiang, China (mainland).,Chinese Medical Nephrology Key Laboratory of Zhejiang Province, Hangzhou, Zhejiang, China (mainland)
| | - Juan Jin
- Department of Nephrology, Zhejiang Provincial Peoples' Hospital, Hangzhou, Zhejiang, China (mainland).,Peoples' Hospital of Hangzhou Medical College, Hangzhou, Zhejiang, China (mainland).,Chinese Medical Nephrology Key Laboratory of Zhejiang Province, Hangzhou, Zhejiang, China (mainland)
| | - Jianguang Gong
- Department of Nephrology, Zhejiang Provincial Peoples' Hospital, Hangzhou, Zhejiang, China (mainland).,Peoples' Hospital of Hangzhou Medical College, Hangzhou, Zhejiang, China (mainland).,Chinese Medical Nephrology Key Laboratory of Zhejiang Province, Hangzhou, Zhejiang, China (mainland)
| | - Li Zhao
- Department of Nephrology, Zhejiang Provincial Peoples' Hospital, Hangzhou, Zhejiang, China (mainland).,Peoples' Hospital of Hangzhou Medical College, Hangzhou, Zhejiang, China (mainland).,Chinese Medical Nephrology Key Laboratory of Zhejiang Province, Hangzhou, Zhejiang, China (mainland)
| | - Yiwen Li
- Department of Nephrology, Zhejiang Provincial Peoples' Hospital, Hangzhou, Zhejiang, China (mainland).,Peoples' Hospital of Hangzhou Medical College, Hangzhou, Zhejiang, China (mainland).,Chinese Medical Nephrology Key Laboratory of Zhejiang Province, Hangzhou, Zhejiang, China (mainland)
| | - Qiang He
- Department of Nephrology, Zhejiang Provincial Peoples' Hospital, Hangzhou, Zhejiang, China (mainland).,Peoples' Hospital of Hangzhou Medical College, Hangzhou, Zhejiang, China (mainland).,Chinese Medical Nephrology Key Laboratory of Zhejiang Province, Hangzhou, Zhejiang, China (mainland)
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Liu J, Xu D, Xia N, Hou K, Chen S, Wang Y, Li Y. Anticoagulant Activities of Indobufen, an Antiplatelet Drug. Molecules 2018; 23:molecules23061452. [PMID: 29914049 PMCID: PMC6099839 DOI: 10.3390/molecules23061452] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 06/09/2018] [Accepted: 06/12/2018] [Indexed: 01/08/2023] Open
Abstract
Indobufen is a new generation of anti-platelet aggregation drug, but studies were not sufficient on its anticoagulant effects. In the present study, the anticoagulant activity of indobufen was determined by monitoring the activated partial thromboplastin time (APTT), prothrombin time (PT), and thrombin time (TT) in rabbit plasma. We evaluated the anticoagulant mechanisms on the content of the platelet factor 3,4 (PF3,4), and the coagulation factor 1, 2, 5, 8, 10 (FI, II, V, VIII, X) in rabbits, as well as the in vivo bleeding time and clotting time in mice. The pharmacodynamic differences between indobufen and warfarin sodium, rivaroxaban, and dabigatran were further studied on thrombus formation and the content of FII and FX in rats. Animal experiments showed that intragastric-administrated indobufen can significantly reduce the APTT, PT, TT, PF3, FI, II, V, VIII, and X plasma contents. Its inhibitory effect on plasma FII was better than thrombin inhibitor dabigatran with effect on FX better than FXa inhibitor rivaroxaban. These results suggest that indobufen has some anticoagulant effects as strong as some conventional anticoagulants. The mechanism may be related to both exogenous and endogenous coagulation system.
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Affiliation(s)
- Jia Liu
- Department of Marketing, Hangzhou Zhongmei Huadong Pharmaceutical Company, Hangzhou 310011, China.
| | - Dan Xu
- State Key Laboratory of Natural Medicines, Department of Physiology, China Pharmaceutical University, Nanjing 210009, China.
| | - Nian Xia
- State Key Laboratory of Natural Medicines, Department of Physiology, China Pharmaceutical University, Nanjing 210009, China.
| | - Kai Hou
- State Key Laboratory of Natural Medicines, Department of Physiology, China Pharmaceutical University, Nanjing 210009, China.
| | - Shijie Chen
- State Key Laboratory of Natural Medicines, Department of Physiology, China Pharmaceutical University, Nanjing 210009, China.
| | - Yu Wang
- Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Department of Pharmacology, Nanjing Medical University, 140 Hanzhong Road, Nanjing 210029, China.
| | - Yunman Li
- State Key Laboratory of Natural Medicines, Department of Physiology, China Pharmaceutical University, Nanjing 210009, China.
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de Vries MR, Simons KH, Jukema JW, Braun J, Quax PHA. Vein graft failure: from pathophysiology to clinical outcomes. Nat Rev Cardiol 2016; 13:451-70. [PMID: 27194091 DOI: 10.1038/nrcardio.2016.76] [Citation(s) in RCA: 197] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Occlusive arterial disease is a leading cause of morbidity and mortality worldwide. Aside from balloon angioplasty, bypass graft surgery is the most commonly performed revascularization technique for occlusive arterial disease. Coronary artery bypass graft surgery is performed in patients with left main coronary artery disease and three-vessel coronary disease, whereas peripheral artery bypass graft surgery is used to treat patients with late-stage peripheral artery occlusive disease. The great saphenous veins are commonly used conduits for surgical revascularization; however, they are associated with a high failure rate. Therefore, preservation of vein graft patency is essential for long-term surgical success. With the exception of 'no-touch' techniques and lipid-lowering and antiplatelet (aspirin) therapy, no intervention has hitherto unequivocally proven to be clinically effective in preventing vein graft failure. In this Review, we describe both preclinical and clinical studies evaluating the pathophysiology underlying vein graft failure, and the latest therapeutic options to improve patency for both coronary and peripheral grafts.
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Affiliation(s)
- Margreet R de Vries
- Department of Surgery, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, Netherlands.,Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, Netherlands
| | - Karin H Simons
- Department of Surgery, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, Netherlands.,Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, Netherlands
| | - J Wouter Jukema
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, Netherlands.,Department of Cardiology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, Netherlands
| | - Jerry Braun
- Department of Cardiothoracic Surgery, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, Netherlands
| | - Paul H A Quax
- Department of Surgery, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, Netherlands.,Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, Netherlands
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Reed GW, Cannon CP, Waalen J, Teirstein PS, Tanguay JF, Berger PB, Angiolillo DJ, Price MJ. Influence of smoking on the antiplatelet effect of clopidogrel differs according to clopidogrel dose: Insights from the GRAVITAS trial. Catheter Cardiovasc Interv 2016; 89:190-198. [DOI: 10.1002/ccd.26428] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Accepted: 01/04/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Grant W. Reed
- Department of Cardiovascular Medicine; Cleveland Clinic; Cleveland Ohio
| | | | - Jill Waalen
- Department of Cardiology; Scripps Translational Science Institute, Scripps Clinic; La Jolla California
| | | | | | - Peter B. Berger
- Department of Cardiology; Geisinger Clinic; Danville Pennsylvania
| | | | - Matthew J. Price
- Department of Cardiology; Scripps Translational Science Institute, Scripps Clinic; La Jolla California
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