Skip to main content
Top
Published in: Cardiovascular Drugs and Therapy 6/2011

01-12-2011

Prospective Cohort Study of Gastrointestinal Complications and Vascular Diseases in Patients Taking Aspirin: Rationale and Design of the MAGIC Study

Authors: Hideki Origasa, Shinya Goto, Kazuyuki Shimada, Shinichiro Uchiyama, Yasushi Okada, Kentaro Sugano, Hideyuki Hiraishi, Naomi Uemura, Yasuo Ikeda, on behalf of the MAGIC Investigators

Published in: Cardiovascular Drugs and Therapy | Issue 6/2011

Login to get access

Abstract

Objective

Although aspirin has been widely prescribed for the prevention of cardiovascular events, its risk of gastrointestinal complications is of great concern. Despite expectations for such, few data are available on the prevalence or incidence of gastrointestinal complications in aspirin users in Japan. The Management of Aspirin-induced GastroIntestinal Complications (MAGIC) is the first attempt at collaboration among cardiologists, neurologists, and gastroenterologists to obtain such findings. We aim to share all about the MAGIC study.

Methods

The MAGIC is a prospective cohort study involving patients taking low-dose aspirin (81 mg to 325 mg per day) for longer than 1 month. Participants are recruited from multiple disease categories, including those with coronary artery disease, cerebrovascular disease, atrial fibrillation, and other cardiovascular conditions requiring antithrombotic therapy. Its duration of follow-up is 1 year. At baseline and 1 year follow-up, all participants will undergo endoscopic examination. The primary outcome is upper gastrointestinal complications, classified as erosions, ulcers, and bleeding. Secondary outcomes include LANZA score, non-fatal cardiovascular events, any bleeding, cancer, and death.

Results

1,533 participants were entered in the MAGIC cohort. By underlying disease, about 45% of them had coronary artery diseases, followed by cerebrovascular diseases (35%), atrial fibrillation (10%) and other cardiovascular diseases (10%).

Conclusions

The MAGIC study will yield important findings with regard to the prevalence and incidence of gastrointestinal complications and related risk factors for low-dose aspirin users. It may also report that use of anti-secretory agents such as proton pump inhibitors reduces the risk of such complications.
Appendix
Available only for authorised users
Literature
1.
go back to reference Hansson GK. Inflammation, atherosclerosis, and coronary artery disease. N Engl J Med. 2005;352:1685–95.PubMedCrossRef Hansson GK. Inflammation, atherosclerosis, and coronary artery disease. N Engl J Med. 2005;352:1685–95.PubMedCrossRef
2.
go back to reference Antithrombotic Trialists’ Collaboration. Collaborative meta-analysis of randomized trials of antiplatelet therapy for prevention of death, myocardial infarction, and stroke in high-risk patients. BMJ. 2002;324:71–86.CrossRef Antithrombotic Trialists’ Collaboration. Collaborative meta-analysis of randomized trials of antiplatelet therapy for prevention of death, myocardial infarction, and stroke in high-risk patients. BMJ. 2002;324:71–86.CrossRef
3.
go back to reference Patrono C, Luis A, García Rodríguez LA, Landolfi R, Baigent C. Low-dose aspirin for the prevention of atherothrombosis. N Engl J Med. 2005;353:2373–83.PubMedCrossRef Patrono C, Luis A, García Rodríguez LA, Landolfi R, Baigent C. Low-dose aspirin for the prevention of atherothrombosis. N Engl J Med. 2005;353:2373–83.PubMedCrossRef
4.
go back to reference Weisman SM, Graham DY. Evaluation of the benefits and risks of low-dose aspirin in the secondary prevention of cardiovascular and cerebrovascular events. Arch Intern Med. 2002;162:2197–202.PubMedCrossRef Weisman SM, Graham DY. Evaluation of the benefits and risks of low-dose aspirin in the secondary prevention of cardiovascular and cerebrovascular events. Arch Intern Med. 2002;162:2197–202.PubMedCrossRef
5.
go back to reference Eidelman RS, Hebert PR, Weisman SM, Hennekens CH. An update on aspirin in the primary prevention of cardiovascular disease. Arch Intern Med. 2003;163:2006–10.PubMedCrossRef Eidelman RS, Hebert PR, Weisman SM, Hennekens CH. An update on aspirin in the primary prevention of cardiovascular disease. Arch Intern Med. 2003;163:2006–10.PubMedCrossRef
6.
go back to reference Dalen JE. Aspirin to prevent heart attack and stroke: what’s the right dose? Am J Med. 2006;119:198–202.PubMedCrossRef Dalen JE. Aspirin to prevent heart attack and stroke: what’s the right dose? Am J Med. 2006;119:198–202.PubMedCrossRef
7.
go back to reference Antithorombotic Trialists’ (ATT) Collaboration. Aspirin in the primary and secondary prevention of vascular disease: collaborative meta-analysis of individual participant data from randomised trials. Lancet. 2009;373:1849–60.CrossRef Antithorombotic Trialists’ (ATT) Collaboration. Aspirin in the primary and secondary prevention of vascular disease: collaborative meta-analysis of individual participant data from randomised trials. Lancet. 2009;373:1849–60.CrossRef
8.
go back to reference Pearson TA, Blair SN, Daniels SR, Eckel RH, Fair JM, Fortmann SP, et al. AHA guidelines for primary prevention of cardiovascular disease and stroke: 2002 update: Consensus Panel Guide to Comprehensive Risk Reduction for Adult Patients Without Coronary or Other Atherosclerotic Vascular Diseases. American Heart Association Science Advisory and Coordinating Committee. Circulation. 2002;106:388–91.PubMedCrossRef Pearson TA, Blair SN, Daniels SR, Eckel RH, Fair JM, Fortmann SP, et al. AHA guidelines for primary prevention of cardiovascular disease and stroke: 2002 update: Consensus Panel Guide to Comprehensive Risk Reduction for Adult Patients Without Coronary or Other Atherosclerotic Vascular Diseases. American Heart Association Science Advisory and Coordinating Committee. Circulation. 2002;106:388–91.PubMedCrossRef
9.
go back to reference Mosca L, Banka CL, Benjamin EJ, Berra K, Bushnell C, Dolor RJ, et al. Evidence-based guidelines for cardiovascular disease prevention in women: 2007 update. Circulation. 2007;115:1481–501.PubMedCrossRef Mosca L, Banka CL, Benjamin EJ, Berra K, Bushnell C, Dolor RJ, et al. Evidence-based guidelines for cardiovascular disease prevention in women: 2007 update. Circulation. 2007;115:1481–501.PubMedCrossRef
10.
go back to reference Hayden M, Pignone M, Phillips C, Mulrow C. Aspirin for the primary prevention of cardiovascular events: a summary of the evidence for the U.S. Preventive Services Task Force. Ann Intern Med. 2002;136:161–72.PubMed Hayden M, Pignone M, Phillips C, Mulrow C. Aspirin for the primary prevention of cardiovascular events: a summary of the evidence for the U.S. Preventive Services Task Force. Ann Intern Med. 2002;136:161–72.PubMed
11.
go back to reference Wolfe MM, Lichtenstein DR, Singh G. Gastrointestinal toxicity of nonsteroidal antiinflammatory drugs. N Engl J Med. 1999;340:1888–99.PubMedCrossRef Wolfe MM, Lichtenstein DR, Singh G. Gastrointestinal toxicity of nonsteroidal antiinflammatory drugs. N Engl J Med. 1999;340:1888–99.PubMedCrossRef
12.
go back to reference García Rodríguez LA, Hernández-Díaz S, de Abajo FJ. Association between aspirin and upper gastrointestinal complications: systematic review of epidemiologic studies. Br J Clin Pharmacol. 2001;52:563–71.PubMedCrossRef García Rodríguez LA, Hernández-Díaz S, de Abajo FJ. Association between aspirin and upper gastrointestinal complications: systematic review of epidemiologic studies. Br J Clin Pharmacol. 2001;52:563–71.PubMedCrossRef
13.
go back to reference Sakamoto C, Sugano K, Ota S, Sakaki N, Takahashi S, Yoshida Y, et al. Case-control study on the association of upper gastrointestinal bleeding and nonsteroidal anti-inflammatory drugs in Japan. Eur J Clin Pharmacol. 2006;62:765–72.PubMedCrossRef Sakamoto C, Sugano K, Ota S, Sakaki N, Takahashi S, Yoshida Y, et al. Case-control study on the association of upper gastrointestinal bleeding and nonsteroidal anti-inflammatory drugs in Japan. Eur J Clin Pharmacol. 2006;62:765–72.PubMedCrossRef
14.
go back to reference Barada K, Karrowni W, Abdallah M, Shamseddeen W, Sharara AI, Dakik HA. Upper gastrointestinal bleeding in patients with acute coronary syndromes: clinical predictors and prophylactic role of proton pump inhibitors. J Clin Gastroenterol. 2008;42:368–72.PubMedCrossRef Barada K, Karrowni W, Abdallah M, Shamseddeen W, Sharara AI, Dakik HA. Upper gastrointestinal bleeding in patients with acute coronary syndromes: clinical predictors and prophylactic role of proton pump inhibitors. J Clin Gastroenterol. 2008;42:368–72.PubMedCrossRef
15.
go back to reference Sato H, Ishikawa K, Kitabatake A, Ogawa S, Maruyama Y, Yokota Y, et al. Low-dose aspirin for prevention of stroke in low-risk patients with atrial fibrillation: Japan Atrial Fibrillation Stroke Trial. Stroke. 2006;37:447–51.PubMedCrossRef Sato H, Ishikawa K, Kitabatake A, Ogawa S, Maruyama Y, Yokota Y, et al. Low-dose aspirin for prevention of stroke in low-risk patients with atrial fibrillation: Japan Atrial Fibrillation Stroke Trial. Stroke. 2006;37:447–51.PubMedCrossRef
16.
go back to reference Ogawa H, Nakayama M, Morimoto T, Uemura S, Kanauchi M, Doi N, et al. Low-dose aspirin for primary prevention of atherosclerotic events in patients with type 2 diabetes: a randomized controlled trial. JAMA. 2008;300:2134–41.PubMedCrossRef Ogawa H, Nakayama M, Morimoto T, Uemura S, Kanauchi M, Doi N, et al. Low-dose aspirin for primary prevention of atherosclerotic events in patients with type 2 diabetes: a randomized controlled trial. JAMA. 2008;300:2134–41.PubMedCrossRef
17.
go back to reference Lanas A, Ferrández A. Treatment and prevention of aspirin-induced gastroduodenal ulcers and gastrointestinal bleeding. Expert Opin Drug Saf. 2002;1:245–52.PubMedCrossRef Lanas A, Ferrández A. Treatment and prevention of aspirin-induced gastroduodenal ulcers and gastrointestinal bleeding. Expert Opin Drug Saf. 2002;1:245–52.PubMedCrossRef
18.
go back to reference Lanza FL. A guideline for the treatment and prevention of NSAID-induced ulcers. Members of the Ad Hoc Committee on Practice Parameters of the American College of Gastroenterology. Am J Gastroenterol. 1998;93:2037–46.PubMedCrossRef Lanza FL. A guideline for the treatment and prevention of NSAID-induced ulcers. Members of the Ad Hoc Committee on Practice Parameters of the American College of Gastroenterology. Am J Gastroenterol. 1998;93:2037–46.PubMedCrossRef
19.
go back to reference Yeomans ND, Lanas AI, Talley NJ, Thompson AB, Daneshojoo R, Eriksson B, et al. Prevalence and incidence of gastroduodenal ulcers during treatment with vascular protective doses of aspirin. Aliment Pharmacol Ther. 2005;22:795–801.PubMedCrossRef Yeomans ND, Lanas AI, Talley NJ, Thompson AB, Daneshojoo R, Eriksson B, et al. Prevalence and incidence of gastroduodenal ulcers during treatment with vascular protective doses of aspirin. Aliment Pharmacol Ther. 2005;22:795–801.PubMedCrossRef
20.
go back to reference Huang JQ, Sridhar S, Hunt RH. Role of Helicobacter pylori infection and non-steroidal anti-inflammatory drugs in peptic-ulcer disease: a meta-analysis. Lancet. 2002;359:14–22.PubMedCrossRef Huang JQ, Sridhar S, Hunt RH. Role of Helicobacter pylori infection and non-steroidal anti-inflammatory drugs in peptic-ulcer disease: a meta-analysis. Lancet. 2002;359:14–22.PubMedCrossRef
21.
22.
go back to reference Chiba T, Seno H, Marusawa H, Wakatsuki Y, Okazaki K. Host factors are important in determining clinical outcomes of Helicobacter pylori infection. J Gastroenterol. 2006;41:1–9.PubMedCrossRef Chiba T, Seno H, Marusawa H, Wakatsuki Y, Okazaki K. Host factors are important in determining clinical outcomes of Helicobacter pylori infection. J Gastroenterol. 2006;41:1–9.PubMedCrossRef
23.
go back to reference Morimoto T, Nakayama M, Saito Y, Ogawa H. Aspirin for primary prevention of atherosclerotic disease in Japan. J Atheroscler Thromb. 2007;14:159–66.PubMedCrossRef Morimoto T, Nakayama M, Saito Y, Ogawa H. Aspirin for primary prevention of atherosclerotic disease in Japan. J Atheroscler Thromb. 2007;14:159–66.PubMedCrossRef
24.
go back to reference Hawkey CJ, Karrasch JA, Szczepañski L, Walker DG, Barkun A, Swannell AJ, et al. Omeprazole compared with misoprostol for ulcers associated with nonsteroidal anti-inflammatory drugs. Omeprazole versus Misoprostol for NSAID-induced Ulcer Management (OMNIUM) Study Group. N Engl J Med. 1998;338:727–34.PubMedCrossRef Hawkey CJ, Karrasch JA, Szczepañski L, Walker DG, Barkun A, Swannell AJ, et al. Omeprazole compared with misoprostol for ulcers associated with nonsteroidal anti-inflammatory drugs. Omeprazole versus Misoprostol for NSAID-induced Ulcer Management (OMNIUM) Study Group. N Engl J Med. 1998;338:727–34.PubMedCrossRef
25.
go back to reference Yeomans ND, Tulassay Z, Juhász L, Rácz I, Howard JM, van Rensburg CJ, et al. A comparison of omeprazole with ranitidine for ulcers associated with nonsteroidal antiinflammatory drugs. Acid Suppression Trial: Ranitidine versus Omeprazole for NSAID-associated Ulcer Treatment (ASTRONAUT) Study Group. N Engl J Med. 1998;338:719–26.PubMedCrossRef Yeomans ND, Tulassay Z, Juhász L, Rácz I, Howard JM, van Rensburg CJ, et al. A comparison of omeprazole with ranitidine for ulcers associated with nonsteroidal antiinflammatory drugs. Acid Suppression Trial: Ranitidine versus Omeprazole for NSAID-associated Ulcer Treatment (ASTRONAUT) Study Group. N Engl J Med. 1998;338:719–26.PubMedCrossRef
26.
go back to reference Lai KC, Lam SK, Chu KM, Wong BC, Hui WM, Hu WH, et al. Lansoprazole for the prevention of recurrences of ulcer complications from long-term low-dose aspirin use. N Engl J Med. 2002;346:2033–8.PubMedCrossRef Lai KC, Lam SK, Chu KM, Wong BC, Hui WM, Hu WH, et al. Lansoprazole for the prevention of recurrences of ulcer complications from long-term low-dose aspirin use. N Engl J Med. 2002;346:2033–8.PubMedCrossRef
27.
go back to reference Chan FK, Wong VW, Suen BY, Wu JC, Ching JY, Hung LC, et al. Combination of a cyclo-oxygenase-2 inhibitor and a proton-pump inhibitor for prevention of recurrent ulcer bleeding in patients at very high risk: a double-blind, randomised trial. Lancet. 2007;369:1621–6.PubMedCrossRef Chan FK, Wong VW, Suen BY, Wu JC, Ching JY, Hung LC, et al. Combination of a cyclo-oxygenase-2 inhibitor and a proton-pump inhibitor for prevention of recurrent ulcer bleeding in patients at very high risk: a double-blind, randomised trial. Lancet. 2007;369:1621–6.PubMedCrossRef
28.
go back to reference Taha AS, McCloskey C, Prasad R, Bezlyak V. Famotidine for the prevention of peptic ulcers and oesophagitis in patients taking low-dose aspirin (FAMOUS): a phase III, randomised, double-blind, placebo-controlled trial. Lancet. 2009;374:119–25.PubMedCrossRef Taha AS, McCloskey C, Prasad R, Bezlyak V. Famotidine for the prevention of peptic ulcers and oesophagitis in patients taking low-dose aspirin (FAMOUS): a phase III, randomised, double-blind, placebo-controlled trial. Lancet. 2009;374:119–25.PubMedCrossRef
29.
go back to reference Working group of developing a guideline for gastric ulcer in Japan. Guideline for clinical practice of gastric ulcer based on EBM, 2nd edn (in Japanese). Jiho, Tokyo, 2007. pp. 101–110. Working group of developing a guideline for gastric ulcer in Japan. Guideline for clinical practice of gastric ulcer based on EBM, 2nd edn (in Japanese). Jiho, Tokyo, 2007. pp. 101–110.
30.
go back to reference Bhatt DL, Scheiman J, Abraham NS, Antman EM, Chan FK, Furberg CD, et al. ACCF/ACG/AHA 2008 expert consensus document on reducing the gastrointestinal risks of antiplatelet therapy and NSAID use: a report of the American College of Cardiology Foundation Task Force on Clinical Expert Consensus Documents. J Am Coll Cardiol. 2008;52:1502–17.PubMedCrossRef Bhatt DL, Scheiman J, Abraham NS, Antman EM, Chan FK, Furberg CD, et al. ACCF/ACG/AHA 2008 expert consensus document on reducing the gastrointestinal risks of antiplatelet therapy and NSAID use: a report of the American College of Cardiology Foundation Task Force on Clinical Expert Consensus Documents. J Am Coll Cardiol. 2008;52:1502–17.PubMedCrossRef
31.
go back to reference Naito Y, Yoshikawa T, Iimura S, Yagi N, Matsuyama K, Boku Y, et al. Rebamipide protects against indomethacin-induced gastric mucosal injury in healthy volunteers in a double-blind, placebo-controlled study. Dig Dis Sci. 1998;43:83S–9.PubMed Naito Y, Yoshikawa T, Iimura S, Yagi N, Matsuyama K, Boku Y, et al. Rebamipide protects against indomethacin-induced gastric mucosal injury in healthy volunteers in a double-blind, placebo-controlled study. Dig Dis Sci. 1998;43:83S–9.PubMed
32.
go back to reference Stukel TA, Fisher ES, Wennberg DE, Alter DA, Gottlieb DJ, Vermeulen MJ. Analysis of observational studies in the presence of treatment selection bias: effects of invasive cardiac management on AMI survival using propensity score and instrumental variable methods. JAMA. 2007;297:278–85.PubMedCrossRef Stukel TA, Fisher ES, Wennberg DE, Alter DA, Gottlieb DJ, Vermeulen MJ. Analysis of observational studies in the presence of treatment selection bias: effects of invasive cardiac management on AMI survival using propensity score and instrumental variable methods. JAMA. 2007;297:278–85.PubMedCrossRef
33.
go back to reference D’Agostino Jr RB, D’Agostino Sr RB. Estimating treatment effects using observational data. JAMA. 2007;297:314–6.PubMedCrossRef D’Agostino Jr RB, D’Agostino Sr RB. Estimating treatment effects using observational data. JAMA. 2007;297:314–6.PubMedCrossRef
34.
go back to reference Berger JS, Krantz MJ, Kittelson JM, Hiatt WR. Aspirin for the prevention of cardiovascular events in patients with peripheral artery disease: a meta-analysis of randomized trials. JAMA. 2009;301:1909–19.PubMedCrossRef Berger JS, Krantz MJ, Kittelson JM, Hiatt WR. Aspirin for the prevention of cardiovascular events in patients with peripheral artery disease: a meta-analysis of randomized trials. JAMA. 2009;301:1909–19.PubMedCrossRef
35.
go back to reference Weil J, Colin-Jones D, Langman M, Lawson D, Logan R, Murphy M, et al. Prophylactic aspirin and risk of peptic ulcer bleeding. BMJ. 1995;310:827–30.PubMedCrossRef Weil J, Colin-Jones D, Langman M, Lawson D, Logan R, Murphy M, et al. Prophylactic aspirin and risk of peptic ulcer bleeding. BMJ. 1995;310:827–30.PubMedCrossRef
36.
go back to reference Sørensen HT, Mellemkjaer L, Blot WJ, Nielsen GL, Steffensen FH, McLaughlin JK, et al. Risk of upper gastrointestinal bleeding associated with use of low-dose aspirin. Am J Gastroenterol. 2000;95:2218–24.PubMed Sørensen HT, Mellemkjaer L, Blot WJ, Nielsen GL, Steffensen FH, McLaughlin JK, et al. Risk of upper gastrointestinal bleeding associated with use of low-dose aspirin. Am J Gastroenterol. 2000;95:2218–24.PubMed
37.
go back to reference Lanas A, García-Rodríguez LA, Arroyo MT, Gomollón F, Feu F, González-Pérez A, et al. Risk of upper gastrointestinal ulcer bleeding associated with selective cyclo-oxygenase-2 inhibitors, traditional non-aspirin non-steroidal anti-inflammatory drugs, aspirin and combinations. Gut. 2006;55:1731–8.PubMedCrossRef Lanas A, García-Rodríguez LA, Arroyo MT, Gomollón F, Feu F, González-Pérez A, et al. Risk of upper gastrointestinal ulcer bleeding associated with selective cyclo-oxygenase-2 inhibitors, traditional non-aspirin non-steroidal anti-inflammatory drugs, aspirin and combinations. Gut. 2006;55:1731–8.PubMedCrossRef
38.
go back to reference Kelly JP, Kaufman DW, Jurgelon JM, Sheehan J, Koff RS, Shapiro S. Risk of aspirin-associated major upper-gastrointestinal bleeding with enteric-coated or buffered product. Lancet. 1996;348:1413–6.PubMedCrossRef Kelly JP, Kaufman DW, Jurgelon JM, Sheehan J, Koff RS, Shapiro S. Risk of aspirin-associated major upper-gastrointestinal bleeding with enteric-coated or buffered product. Lancet. 1996;348:1413–6.PubMedCrossRef
39.
go back to reference Asaka M, Satoh K, Sugano K, Sugiyama T, Takahashi S, Fukuda Y, et al. Guidelines in the management of Helicobacter pylori infection in Japan. Helicobacter. 2001;6:177–86.PubMedCrossRef Asaka M, Satoh K, Sugano K, Sugiyama T, Takahashi S, Fukuda Y, et al. Guidelines in the management of Helicobacter pylori infection in Japan. Helicobacter. 2001;6:177–86.PubMedCrossRef
40.
go back to reference Uemura N, Okasato S, Yamamoto S, Matsubara N, Yamaguchi S, Yamakido M, et al. Helicobacter pylori infection and the development of gastric cancer. N Engl J Med. 2001;345:784–9.PubMedCrossRef Uemura N, Okasato S, Yamamoto S, Matsubara N, Yamaguchi S, Yamakido M, et al. Helicobacter pylori infection and the development of gastric cancer. N Engl J Med. 2001;345:784–9.PubMedCrossRef
41.
go back to reference Hu PJ, Li YY, Zhou MH, Chen MH, Du GG, Huang BJ, et al. Helicobacter pylori associated with a high prevalence of duodenal ulcer disease and a low prevalence of gastric cancer in a developing nation. Gut. 1995;36:198–202.PubMedCrossRef Hu PJ, Li YY, Zhou MH, Chen MH, Du GG, Huang BJ, et al. Helicobacter pylori associated with a high prevalence of duodenal ulcer disease and a low prevalence of gastric cancer in a developing nation. Gut. 1995;36:198–202.PubMedCrossRef
42.
go back to reference Kitchingman GK, Prichard PJ, Daneshmend TK, Walt RP, Hawkey CJ. Enhanced gastric mucosal bleeding with doses of aspirin used for prophylaxis and its reduction by ranitidine. Br J Clin Pharmacol. 1989;28:581–5.PubMed Kitchingman GK, Prichard PJ, Daneshmend TK, Walt RP, Hawkey CJ. Enhanced gastric mucosal bleeding with doses of aspirin used for prophylaxis and its reduction by ranitidine. Br J Clin Pharmacol. 1989;28:581–5.PubMed
43.
go back to reference Shiotani A, Sakakibara T, Yamanaka Y, Imamura H, Tarumi K, Manabe N, et al. Upper gastrointestinal ulcer in Japanese patients taking low-dose aspirin. J Gastroenterol. 2009;44:126–31.PubMedCrossRef Shiotani A, Sakakibara T, Yamanaka Y, Imamura H, Tarumi K, Manabe N, et al. Upper gastrointestinal ulcer in Japanese patients taking low-dose aspirin. J Gastroenterol. 2009;44:126–31.PubMedCrossRef
44.
go back to reference Gilard M, Arnaud B, Cornily JC, Le Gal G, Lacut K, Le Calvez G, et al. Influence of omeprazole on the antiplatelet action of clopidogrel associated with aspirin: the randomized, double-blind OCLA (Omeprazole CLopidogrel Aspirin) study. J Am Coll Cardiol. 2008;51:256–60.PubMedCrossRef Gilard M, Arnaud B, Cornily JC, Le Gal G, Lacut K, Le Calvez G, et al. Influence of omeprazole on the antiplatelet action of clopidogrel associated with aspirin: the randomized, double-blind OCLA (Omeprazole CLopidogrel Aspirin) study. J Am Coll Cardiol. 2008;51:256–60.PubMedCrossRef
45.
go back to reference Aronow HD, Steinhubl SR, Brennan DM, Berger PB, Topol EJ. Bleeding risk associated with 1 year of dual antiplatelet therapy after percutaneous coronary intervention: Insights from the Clopidogrel for the Reduction of Events During Observation (CREDO) trial. Am Heart J. 2009;157:369–74.PubMedCrossRef Aronow HD, Steinhubl SR, Brennan DM, Berger PB, Topol EJ. Bleeding risk associated with 1 year of dual antiplatelet therapy after percutaneous coronary intervention: Insights from the Clopidogrel for the Reduction of Events During Observation (CREDO) trial. Am Heart J. 2009;157:369–74.PubMedCrossRef
Metadata
Title
Prospective Cohort Study of Gastrointestinal Complications and Vascular Diseases in Patients Taking Aspirin: Rationale and Design of the MAGIC Study
Authors
Hideki Origasa
Shinya Goto
Kazuyuki Shimada
Shinichiro Uchiyama
Yasushi Okada
Kentaro Sugano
Hideyuki Hiraishi
Naomi Uemura
Yasuo Ikeda
on behalf of the MAGIC Investigators
Publication date
01-12-2011
Publisher
Springer US
Published in
Cardiovascular Drugs and Therapy / Issue 6/2011
Print ISSN: 0920-3206
Electronic ISSN: 1573-7241
DOI
https://doi.org/10.1007/s10557-011-6328-2

Other articles of this Issue 6/2011

Cardiovascular Drugs and Therapy 6/2011 Go to the issue