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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT02648113
Other study ID # K140705
Secondary ID 2015-A00360-49
Status Completed
Phase N/A
First received
Last updated
Start date March 23, 2016
Est. completion date September 10, 2020

Study information

Verified date March 2022
Source Assistance Publique - Hôpitaux de Paris
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Anemia in patients with myocardial infarction (MI) is a relatively frequent issue, resulting in poorer outcome. There is equipoise regarding which transfusion strategy is best, and there is an international consensus on the urgent need for a randomized trial. The investigators hypothesize that a "restrictive" transfusion strategy is at least non-inferior to a "liberal" transfusion strategy on 30-day outcomes of MI patients with anemia. Given the costs and risks of transfusion, a cost-effectiveness and cost-utility analysis becomes key to determining the role of each strategy.


Description:

Anemia is frequent in patients with myocardial infarction (MI). The antiplatelet and anticoagulant agents used for MI treatment increase the risk of bleeding, which in turn increases the risk of ischemia and mortality. Anemia is an independent predictor of cardiac events in this setting. In the "FAST-MI 2010" nationwide registry, the prevalence of anemia (defined as Hb <10g/dL) at admission was 3% and impacted mortality. Whether this risk can be overcome by transfusion is debated. In theory, transfusion should increase oxygen delivery to the myocardium. However, recent data suggest that oxygen delivery is not increased in patients receiving transfusion, that red blood cells are rapidly depleted of nitric oxide during storage and that, conversely, transfusion may increase platelet activation and aggregation and these consequences appear potentially even more deleterious in patients with cardiovascular disease. In the general population without cardiovascular disease of medical and surgical patients, the role of liberal vs restrictive transfusion strategies has been explored by a series of randomized trials, which have led to a consensus to withhold blood transfusions until a threshold of 7 to 8 g/dl hemoglobin is reached. Among patients with myocardial infarction, however, both the deleterious consequences of anemia and the risks of transfusion may be greater, which leads to lingering uncertainty regarding the role of liberal vs restrictive transfusion strategies in this setting. The clinical data are observational and contradictory. Conversely, a large meta-analysis (>200 000 patients) reported a higher risk of mortality and recurrent MI in MI patients who received transfusion. More recently, a careful observational study has shown that the majority of patients undergoing blood transfusion cannot be matched with non-transfused patients due to their markedly different clinical profiles, indicating that observational studies cannot reliable establish the benefits or risks of transfusion because they are hopelessly influenced by selection bias. These results strongly highlight the need for randomized trials to establish the role of transfusion during acute MI, a call for a randomized trial that has been echoed by several thought leaders in the field in recent years. Two small randomized trials (respectively 45 and 110 patients) comparing liberal vs. restrictive transfusion strategies in MI showed no clear difference in clinical outcomes but were both underpowered. The only guideline regarding management of anemia in this setting is from the European Society of Cardiology (ESC) guidelines on non-ST segment elevation - acute coronary syndrome (NSTE-ACS), which advise blood transfusion only if the hemodynamic status is compromised or the hemoglobin level is <7g/dL. As a result, there is wide variation in clinical practice. There is therefore equipoise regarding which transfusion strategy is best. Hypothesis: We hypothesize that a "restrictive" transfusion strategy (triggered by Hb <= 8 g/ dL) will be clinically non-inferior to a "liberal" transfusion strategy (triggered by Hb <= 10g/ dL) but will be less costly. Main objective: The main objective of the study is to compare cost-effectiveness of restrictive (triggered by Hb <= 8 g/ dL) vs liberal (triggered by Hb <= 10g/ dL) red blood transfusion strategies for patients with acute MI and anemia (7g /dL < Hb <= 10g / dL). Secondary objective(s): 1. The key secondary objective is to perform cost-utility analyses at 30-days and 1 year. 2. The main clinical objective will be to determine whether a restrictive transfusion strategy is clinically non-inferior to a liberal transfusion strategy in terms of major adverse cardiac events (MACE) at 30 days, defined as the composite of all-cause death, nonfatal stroke, nonfatal recurrent MI, and emergency revascularization prompted by ischemia. 2. A tertiary objective will be to compare major adverse cardiac events (MACE) at 1 year, since the impact of transfusion strategies on MACE may be delayed, or conversely, an initial benefit of either strategy may become lost over the first year.


Recruitment information / eligibility

Status Completed
Enrollment 668
Est. completion date September 10, 2020
Est. primary completion date October 10, 2019
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - Aged = 18 years - Recent acute myocardial infarction, with or without ST- segment elevation, with a combination of ischemic symptoms occurring in the past 48 hours,before the MI related admission, and elevation of biomarkers of myocardial injury (troponin) - Anemia Hb = 10g / dL but > 7 g/dL on Hb, measured at any time during the index hospital admission for MI. - Written informed consent - Coverage for medical insurance. Exclusion Criteria: - Shock (SBP < 90 mmHg with clinical signs of low output or patients requiring inotropic agents) - MI occurring post-percutaneous coronary intervention (PCI) or post-coronary artery bypass graft (CABG) (i.e. type IV or V Acute MI according to the 2012 Universal Definition of MI - Life-threatening or massive ongoing bleeding (as judged by the investigator) - Any blood transfusion in the previous 30-days - any known malignant hematologic disease Note: Sickle cell disease, thalassemia and anemia due to chronic renal failure (even under EPO) are not an exclusion criteria

Study Design


Related Conditions & MeSH terms


Intervention

Procedure:
Restrictive transfusion
Transfusions are withheld unless Hb is <= 8 g/dL, with a target Hb of 8 to 10 g /dL
Liberal transfusion
transfusions are allowed as soon as Hb <= 10 g/dL with a target of 11 g /dL
Biological:
red blood transfusion


Locations

Country Name City State
France Hôpital Bichat Paris
Spain Hospital Clinic of Barcelona Barcelona

Sponsors (1)

Lead Sponsor Collaborator
Assistance Publique - Hôpitaux de Paris

Countries where clinical trial is conducted

France,  Spain, 

References & Publications (40)

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Carson JL, Grossman BJ, Kleinman S, Tinmouth AT, Marques MB, Fung MK, Holcomb JB, Illoh O, Kaplan LJ, Katz LM, Rao SV, Roback JD, Shander A, Tobian AA, Weinstein R, Swinton McLaughlin LG, Djulbegovic B; Clinical Transfusion Medicine Committee of the AABB. Red blood cell transfusion: a clinical practice guideline from the AABB*. Ann Intern Med. 2012 Jul 3;157(1):49-58. doi: 10.7326/0003-4819-157-1-201206190-00429. Review. — View Citation

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Chatterjee S, Wetterslev J, Sharma A, Lichstein E, Mukherjee D. Association of blood transfusion with increased mortality in myocardial infarction: a meta-analysis and diversity-adjusted study sequential analysis. JAMA Intern Med. 2013 Jan 28;173(2):132-9. doi: 10.1001/2013.jamainternmed.1001. — View Citation

Cooper HA, Rao SV, Greenberg MD, Rumsey MP, McKenzie M, Alcorn KW, Panza JA. Conservative versus liberal red cell transfusion in acute myocardial infarction (the CRIT Randomized Pilot Study). Am J Cardiol. 2011 Oct 15;108(8):1108-11. doi: 10.1016/j.amjcard.2011.06.014. Epub 2011 Jul 24. — View Citation

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Ducrocq G, Gonzalez-Juanatey JR, Puymirat E, Lemesle G, Cachanado M, Durand-Zaleski I, Arnaiz JA, Martínez-Sellés M, Silvain J, Ariza-Solé A, Ferrari E, Calvo G, Danchin N, Avendaño-Solá C, Frenkiel J, Rousseau A, Vicaut E, Simon T, Steg PG; REALITY Inves — View Citation

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Frank SM, Abazyan B, Ono M, Hogue CW, Cohen DB, Berkowitz DE, Ness PM, Barodka VM. Decreased erythrocyte deformability after transfusion and the effects of erythrocyte storage duration. Anesth Analg. 2013 May;116(5):975-981. doi: 10.1213/ANE.0b013e31828843e6. Epub 2013 Feb 28. — View Citation

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Hébert PC, Yetisir E, Martin C, Blajchman MA, Wells G, Marshall J, Tweeddale M, Pagliarello G, Schweitzer I; Transfusion Requirements in Critical Care Investigators for the Canadian Critical Care Trials Group. Is a low transfusion threshold safe in critically ill patients with cardiovascular diseases? Crit Care Med. 2001 Feb;29(2):227-34. — View Citation

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Husereau D, Drummond M, Petrou S, Carswell C, Moher D, Greenberg D, Augustovski F, Briggs AH, Mauskopf J, Loder E; CHEERS Task Force. Consolidated Health Economic Evaluation Reporting Standards (CHEERS) statement. BMJ. 2013 Mar 25;346:f1049. doi: 10.1136/bmj.f1049. — View Citation

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Perkins HA, Busch MP. Transfusion-associated infections: 50 years of relentless challenges and remarkable progress. Transfusion. 2010 Oct;50(10):2080-99. doi: 10.1111/j.1537-2995.2010.02851.x. Review. — View Citation

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Rao SV, Sherwood MW. Isn't it about time we learned how to use blood transfusion in patients with ischemic heart disease? J Am Coll Cardiol. 2014 Apr 8;63(13):1297-1299. doi: 10.1016/j.jacc.2013.11.028. Epub 2013 Dec 18. — View Citation

Robinson SD, Janssen C, Fretz EB, Berry B, Chase AJ, Siega AD, Carere RG, Fung A, Simkus G, Klinke WP, Hilton JD. Red blood cell storage duration and mortality in patients undergoing percutaneous coronary intervention. Am Heart J. 2010 May;159(5):876-81. doi: 10.1016/j.ahj.2010.02.018. — View Citation

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Salisbury AC, Reid KJ, Marso SP, Amin AP, Alexander KP, Wang TY, Spertus JA, Kosiborod M. Blood transfusion during acute myocardial infarction: association with mortality and variability across hospitals. J Am Coll Cardiol. 2014 Aug 26;64(8):811-9. doi: 10.1016/j.jacc.2014.05.040. — View Citation

Sherwood MW, Rao SV. Acute coronary syndromes: Blood transfusion in patients with acute MI and anaemia. Nat Rev Cardiol. 2013 Apr;10(4):186-7. doi: 10.1038/nrcardio.2013.14. Epub 2013 Feb 5. — View Citation

Silvain J, Abtan J, Kerneis M, Martin R, Finzi J, Vignalou JB, Barthélémy O, O'Connor SA, Luyt CE, Brechot N, Mercadier A, Brugier D, Galier S, Collet JP, Chastre J, Montalescot G. Impact of red blood cell transfusion on platelet aggregation and inflammatory response in anemic coronary and noncoronary patients: the TRANSFUSION-2 study (impact of transfusion of red blood cell on platelet activation and aggregation studied with flow cytometry use and light transmission aggregometry). J Am Coll Cardiol. 2014 Apr 8;63(13):1289-1296. doi: 10.1016/j.jacc.2013.11.029. Epub 2013 Dec 18. — View Citation

Silvain J, Pena A, Cayla G, Brieger D, Bellemain-Appaix A, Chastre T, Vignalou JB, Beygui F, Barthelemy O, Collet JP, Montalescot G. Impact of red blood cell transfusion on platelet activation and aggregation in healthy volunteers: results of the TRANSFUSION study. Eur Heart J. 2010 Nov;31(22):2816-21. doi: 10.1093/eurheartj/ehq209. Epub 2010 Jun 29. — View Citation

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Vamvakas EC, Blajchman MA. Transfusion-related mortality: the ongoing risks of allogeneic blood transfusion and the available strategies for their prevention. Blood. 2009 Apr 9;113(15):3406-17. doi: 10.1182/blood-2008-10-167643. Epub 2009 Feb 2. Review. — View Citation

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* Note: There are 40 references in allClick here to view all references

Outcome

Type Measure Description Time frame Safety issue
Primary Cost-effectiveness ratio at 30 days The primary endpoint is the incremental cost-effectiveness ratio (ICER) at 30-days, using the composite endpoint (30-day composite of all-cause death, non fatal stroke, nonfatal recurrent MI, and emergency revascularization prompted by ischemia) as the effectiveness criterion 30 days
Secondary Cost-effectiveness ratio at 1 year Incremental cost-effectiveness ratio (ICER) at 1 year, using the composite endpoint (1-year composite of all-cause death, non fatal stroke, nonfatal recurrent MI, and emergency revascularization prompted by ischemia) as the effectiveness criterion 1 year
Secondary Clinically non inferiority at 30 days The main clinical endpoint is Major Adverse Cardiac Events (MACE) at 30-days defined as the 30-day composite of all-cause death, non-fatal recurrent MI, non-fatal stroke and emergency revascularization prompted by ischemia, (all of the components of this composite clinical outcome will be analyzed separately as secondary endpoints of their own) 30 days
Secondary Clinically non inferiority at 1 year The main clinical endpoint is Major Adverse Cardiac Events (MACE) at 30-days defined as the 30-day composite of all-cause death, non-fatal recurrent MI, non-fatal stroke and emergency revascularization prompted by ischemia, (all of the components of this composite clinical outcome will be analyzed separately as secondary endpoints of their own) 1 year
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