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Myocardial InfarctionPhase 2NCT00367991

Effects of Recombinant Human Erythropoietin on Platelet Function in Patients With Acute Myocardial Infarction

A Phase 2 study testing Recombinant human erythropoietin alfa (drug) in people with Myocardial Infarction, run by Yale University at 1 site in United States.

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

The purpose of this study is to see if a naturally-occurring hormone called erythropoietin changes the action of platelets in the blood. Patients with heart attacks are treated with medicines to reduce the clotting action of platelets. Read more about this study

Who is it for?
Ages 21 to 75 years
Conditions the study is for
Myocardial Infarction
What is being tested?
Recombinant human erythropoietin alfa (drug)
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
44 participants
Where
1 siteUnited States
Study dates
Nov 2006to Mar 2008
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 21 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Age 21-75 years
  • Clinical evidence of acute myocardial infarction (MI) with total or sub-total occlusion on angiogram
  • Status post percutaneous revascularization procedure for acute MI with TIMI 3 flow
  • Ongoing clinically-indicated treatment with aspirin, thienopyridines

Who cannot join

  • Hemodynamic instability/shock or severe congestive heart failure
  • Time from onset of chest pain to revascularization procedure > 16 hours
  • Use of intravenous thrombolytic agents for treatment of MI
  • Known need for additional revascularization procedures

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Yale University

    New Haven, Connecticut, 06510

Other trials in United States

About this study

The purpose of this study is to see if a naturally-occurring hormone called erythropoietin changes the action of platelets in the blood. Patients with heart attacks are treated with medicines to reduce the clotting action of platelets. This study is trying to determine whether erythropoietin alters the clotting action of platelets in patients receiving anti-platelet medicines. It is important to understand the effects of erythropoietin on platelets since preliminary studies in animals suggest that erythropoietin may protect the heart from damage during a heart attack.

Read the detailed description

Anti-apoptotic effects of erythropoietin in experimental myocardial infarction (MI) and ischemia-reperfusion injury suggest potential for therapeutic benefit in patients with acute MI. Before the therapeutic potential of recombinant human erythropoietin (rHuEpo) in acute MI can be tested in large clinical trials, more information on the effects of short-term rHuEpo on platelet function are needed. Accordingly, the current proposal aims to determine the effects of rHuEpo (at a dose previously shown not to inhibit the anti-platelet effects of aspirin and clopidogrel in healthy subjects) on platelet function and other safety measures and measure of infarct size in patients with acute coronary syndromes receiving clinically-indicated standard anti-platelet therapy with aspirin, clopidogrel and glycoprotein Iib-IIIa inhibitors.

Specific Aim 1: To determine the effects of intravenous rHuEpo 400 U/kg daily for 3 days vs. placebo on in vivo and in vitro platelet function in patients with acute MI undergoing percutaneous revascularization.

Specific Aim 2: To obtain pilot data to estimate the effects of administration of rHuEpo 400 U/kg daily for 3 days vs. placebo on biochemical markers of myocardial infarction size and left ventricular ejection fraction in patients with acute MI undergoing percutaneous revascularization

Being tested
Recombinant human erythropoietin alfa (drug), Placebo
Keywords
Platelet function tests, Erythropoietin, Myocardial infarction
Medical subject headings
Myocardial Infarction

What participants receive

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

  • Recombinant human erythropoietin alfa (drug)Drug

    200 U/kg IV daily for 3 days vs. matched volume of normal saline IV daily for 3 days

  • PlaceboDrug

    Normal saline to match active drug (rHuEpo)

Study groups in NCT00367991
Study groupRoleWhat they receive
AActive comparatorrecombinant human erythropoietin 200 U/kg IV daily for 3 days
Receives: Drug: Recombinant human erythropoietin alfa (drug)
BPlacebo comparatorNormal saline volume to match active treatment IV daily for 3 days
Receives: Drug: Placebo

What is being measured

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

  1. Bleeding Time

    An integrated measure of in vivo platelet function and tissue hemostasis.

    Measured: Change from Day 3 to Day 10

  2. Platelet Function Assay Closure Time

    Measured: Change from Day 3 to Day 10

Secondary outcomes (4)
  1. Left Ventricular Ejection Fraction

    Measured: Day 1 and Day 10

  2. Serum Markers of Myocyte Damage

    Myocyte Damage is represented by Creatine phosphokinase (CPK). CPK is measured in U/L, as scalar measure of the enzyme activity. CPK was measured for clinical indications laboratory.

    Measured: Baseline

  3. Circulating Endothelial Progenitor Cells

    Measured: Day 3 and Day 10

  4. Serum Markers of Apoptosis

    Apoptosis is represented by Fas ligand (FasL or CD95L). FasL (CD95L) is measured in pg/mL.

    Measured: Day 1 and Day 10

Timeline

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

  1. First posted24 Aug 2006 (estimated)
  2. Study startNov 2006
  3. Primary completionMar 2008
  4. Study completionMar 2008

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 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
44 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00367991
Sponsor's protocol ID
0506000140
Other IDs
0555844T
Status last verified
Dec 2017
First submitted
23 Aug 2006
Last updated
12 Jan 2018
Data monitoring committee
Yes

Publications

  • Tang YD, Hasan F, Giordano FJ, Pfau S, Rinder HM, Katz SD. Effects of recombinant human erythropoietin on platelet activation in acute myocardial infarction: results of a double-blind, placebo-controlled, randomized trial. Am Heart J. 2009 Dec;158(6):941-7. doi: 10.1016/j.ahj.2009.06.032.

    PubMed 19958860

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Recombinant human erythropoietin alfa (drug) in people with Myocardial Infarction, run by Yale University at 1 site in United States.

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 4 inclusion and 4 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 Jan 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. 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. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 13 Sep 2011). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Bleeding Time (time frame: Change from Day 3 to Day 10). The study lists 2 primary outcomes in all. 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 NCT00367991, which also lists 1 linked publication.

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 Jan 2018.

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