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Myocardial InfarctionREALITYNCT02648113

Cost-effectiveness and Cost-utility of Liberal vs Restrictive Red Blood Cell Transfusion Strategies in Patients With Acute Myocardial Infarction and Anaemia.

A study testing Restrictive transfusion, Liberal transfusion and red blood transfusion in people with Myocardial Infarction and Anemia, run by Assistance Publique - Hôpitaux de Paris at 2 sites in 2 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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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. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Myocardial Infarction, Anemia, Blood Transfusion
What is being tested?
Restrictive transfusion, Liberal transfusion and red blood transfusion
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
668 participants
Where
2 sitesin 2 countries
Study dates
23 Mar 2016to 10 Sep 2020
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • 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.

Who cannot join

  • 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

Trial locations and contacts

2 sites in 2 countries.

2 sites in 2 countries

France1 site
  • Hôpital Bichat

    Paris

Other trials in France

Spain1 site
  • Hospital Clinic of Barcelona

    Barcelona, 08036

Other trials in Spain

About this study

Official title: Cost-effectiveness and Cost-utility of Liberal vs Restrictive Red Blood Cell Transfusion Strategies in Patients With Acute Myocardial Infarction and Anaemia. The REALITY (REstrictive And LIberal Transfusion Strategies in Patients With Acute mYocardial Infarction) Randomized Trial.

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.

Read the detailed 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.
  3. 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.
Being tested
Restrictive transfusion, Liberal transfusion, red blood transfusion
Keywords
Myocardial Infarction, Anemia, Blood Transfusion
Medical subject headings
Myocardial Infarction, Anemia

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Restrictive transfusionProcedure or surgery

    Transfusions are withheld unless Hb is <= 8 g/dL, with a target Hb of 8 to 10 g /dL

  • Liberal transfusionProcedure or surgery

    transfusions are allowed as soon as Hb <= 10 g/dL with a target of 11 g /dL

  • red blood transfusionBiological

Study groups in NCT02648113
Study groupRoleWhat they receive
Restrictive transfusion strategyExperimentalTransfusions are withheld unless Hb is <= 8 g/dL, with a target Hb of 8 to 10 g /dL
Receives: Procedure: Restrictive transfusion; Biological: red blood transfusion
Liberal transfusion strategyExperimentalTransfusions are allowed as soon as Hb <= 10 g/dL with a target of 11 g /dL.
Receives: Procedure: Liberal transfusion; Biological: red blood transfusion

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. 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

    Measured: 30 days

Secondary outcomes (3)
  1. 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

    Measured: 1 year

  2. 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)

    Measured: 30 days

  3. 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)

    Measured: 1 year

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted6 Jan 2016 (estimated)
  2. Study start23 Mar 2016
  3. Primary completion10 Oct 2019
  4. Study completion10 Sep 2020

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Supportive care
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
668 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02648113
Sponsor's protocol ID
K140705
Other IDs
2015-A00360-49
Acronym
REALITY
Status last verified
Mar 2022
First submitted
5 Jan 2016
Last updated
12 Apr 2022
Results posted
No
Data monitoring committee
Yes

Publications

  • Sabatine MS, Morrow DA, Giugliano RP, Burton PB, Murphy SA, McCabe CH, Gibson CM, Braunwald E. Association of hemoglobin levels with clinical outcomes in acute coronary syndromes. Circulation. 2005 Apr 26;111(16):2042-9. doi: 10.1161/01.CIR.0000162477.70955.5F. Epub 2005 Apr 11.

    PubMed 15824203
  • Hanssen M, Cottin Y, Khalife K, Hammer L, Goldstein P, Puymirat E, Mulak G, Drouet E, Pace B, Schultz E, Bataille V, Ferrieres J, Simon T, Danchin N; FAST-MI 2010 Investigators. French Registry on Acute ST-elevation and non ST-elevation Myocardial Infarction 2010. FAST-MI 2010. Heart. 2012 May;98(9):699-705. doi: 10.1136/heartjnl-2012-301700.

    PubMed 22523054
  • 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.

    PubMed 20591842
  • Silvain J, Abtan J, Kerneis M, Martin R, Finzi J, Vignalou JB, Barthelemy 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.

    PubMed 24361322
  • Yeh RW, Wimmer NJ. Blood transfusion in myocardial infarction: opening old wounds for comparative-effectiveness research. J Am Coll Cardiol. 2014 Aug 26;64(8):820-2. doi: 10.1016/j.jacc.2014.05.041. No abstract available.

    PubMed 25145527
  • 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.

    PubMed 22751760
  • Carson JL, Carless PA, Hebert PC. Outcomes using lower vs higher hemoglobin thresholds for red blood cell transfusion. JAMA. 2013 Jan 2;309(1):83-4. doi: 10.1001/jama.2012.50429.

    PubMed 23280228
  • Wu WC, Rathore SS, Wang Y, Radford MJ, Krumholz HM. Blood transfusion in elderly patients with acute myocardial infarction. N Engl J Med. 2001 Oct 25;345(17):1230-6. doi: 10.1056/NEJMoa010615.

    PubMed 11680442
  • 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.

    PubMed 23266500
  • 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.

    PubMed 25145526
  • 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. No abstract available.

    PubMed 24361316
  • 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.

    PubMed 21791325
  • Carson JL, Brooks MM, Abbott JD, Chaitman B, Kelsey SF, Triulzi DJ, Srinivas V, Menegus MA, Marroquin OC, Rao SV, Noveck H, Passano E, Hardison RM, Smitherman T, Vagaonescu T, Wimmer NJ, Williams DO. Liberal versus restrictive transfusion thresholds for patients with symptomatic coronary artery disease. Am Heart J. 2013 Jun;165(6):964-971.e1. doi: 10.1016/j.ahj.2013.03.001. Epub 2013 Apr 8.

    PubMed 23708168
  • Hamm CW, Bassand JP, Agewall S, Bax J, Boersma E, Bueno H, Caso P, Dudek D, Gielen S, Huber K, Ohman M, Petrie MC, Sonntag F, Uva MS, Storey RF, Wijns W, Zahger D; ESC Committee for Practice Guidelines. ESC Guidelines for the management of acute coronary syndromes in patients presenting without persistent ST-segment elevation: The Task Force for the management of acute coronary syndromes (ACS) in patients presenting without persistent ST-segment elevation of the European Society of Cardiology (ESC). Eur Heart J. 2011 Dec;32(23):2999-3054. doi: 10.1093/eurheartj/ehr236. Epub 2011 Aug 26. No abstract available.

    PubMed 21873419
  • Thygesen K, Alpert JS, Jaffe AS, Simoons ML, Chaitman BR, White HD; Writing Group on the Joint ESC/ACCF/AHA/WHF Task Force for the Universal Definition of Myocardial Infarction; Thygesen K, Alpert JS, White HD, Jaffe AS, Katus HA, Apple FS, Lindahl B, Morrow DA, Chaitman BA, Clemmensen PM, Johanson P, Hod H, Underwood R, Bax JJ, Bonow RO, Pinto F, Gibbons RJ, Fox KA, Atar D, Newby LK, Galvani M, Hamm CW, Uretsky BF, Steg PG, Wijns W, Bassand JP, Menasche P, Ravkilde J, Ohman EM, Antman EM, Wallentin LC, Armstrong PW, Simoons ML, Januzzi JL, Nieminen MS, Gheorghiade M, Filippatos G, Luepker RV, Fortmann SP, Rosamond WD, Levy D, Wood D, Smith SC, Hu D, Lopez-Sendon JL, Robertson RM, Weaver D, Tendera M, Bove AA, Parkhomenko AN, Vasilieva EJ, Mendis S; ESC Committee for Practice Guidelines (CPG). Third universal definition of myocardial infarction. Eur Heart J. 2012 Oct;33(20):2551-67. doi: 10.1093/eurheartj/ehs184. Epub 2012 Aug 24. No abstract available.

    PubMed 22922414

Questions about this trial

What is this clinical trial studying?

A study testing Restrictive transfusion, Liberal transfusion and red blood transfusion in people with Myocardial Infarction and Anemia, run by Assistance Publique - Hôpitaux de Paris at 2 sites in 2 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 12 Apr 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in France, Spain. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Cost-effectiveness ratio at 30 days (time frame: 30 days). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02648113, which also lists 45 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 12 Apr 2022.

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