Efficacy of Early Administration of Clotinab in Acute Myocardial Infarction

NCT ID: NCT00841438

Last Updated: 2010-05-04

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE4

Total Enrollment

786 participants

Study Classification

INTERVENTIONAL

Study Start Date

2007-07-31

Study Completion Date

2009-12-31

Brief Summary

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The ADMIRAL (Platelet glycoprotein IIb/IIIa inhibition with coronary stenting for acute myocardial infarction) study demonstrated that early administration of abciximab in patients with ST elevation acute myocardial infarction prior to PCI improves clinical outcomes but no specifically designed randomized study has addressed the issue of early upstream use of GP IIb/IIIa inhibitors in ST elevation acute myocardial infarction who are undergoing PCI, especially in the era of routine pretreatment with 600 mg of clopidogrel. Therefore, the objective of the randomized ECLAT-STEMI study was to assess the hypothesis that the early upstream use of Clotinab is a useful therapy in patients with ST elevation MI undergoing PCI compared to "provisional use", even after pretreatment with a 600-mg loading dose of clopidogrel.

Detailed Description

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It is well known that platelet-mediated thrombosis is account for the pathophysiology of acute coronary syndrome (ACS) (1,2). In the treatment of ACS, intravenous platelet glycoprotein (GP) IIb/IIIa receptor antagonists for platelet aggregation may reduce the risk of ischemic complications (3-7). Therefore, in the management of ACS, Platelet GP IIb/IIIa receptor inhibitors have been developed as a promising new therapy for the reduction of coronary events and the improvement of clinical outcomes.

Abciximab, one of platelet GP IIb/IIIa receptor blockers, was developed by Coller in 1985 and named as 7E3(8). Abciximab is a chimeric human monoclonal antibody and binds to platelet surface GP IIb/IIIa receptor competitively with adhesive molecules such as fibrinogen and von Willebrand factor, and blocks the final stage of platelet aggregation(9). The effect of Abciximab has been proved in many clinical trials such as the EPIC trial(9), EPILOG trial(10), TARGET(11) etc. The contribution of GP IIb/IIIa inhibition in ACS (Tirofiban) is shown in placebo-controlled trials in which upstream GP IIb/IIIa inhibition was initiated upon admission (12,13). Although these results are encouraging, there are few other data to support the use of upstream GP IIb/IIIa inhibitors. Moreover, according to the GUSTO-IV trial (14), the use of Abciximab was not recommended in the manner of upstream use. To evaluate the role of abciximab in conservatively treated non-ST-elevation ACS patients, the GUSTO-IV study randomized 7800 patients with non-ST-elevation ACS to receive either placebo or an Abciximab bolus (0.25 mg/kg) and 24-hour or 48-hour infusion(0.125 µg/kg/min). However, in fact, a trend was noted for potential harm with the higher abciximab dose. Even subgroup analyses including high-risk troponin-positive patients showed no benefit with either abciximab regimen (9.7% with placebo, 10.2% with 24-hour abciximab, 11.7% with 48-hour abciximab for death or MI at 30 days, P = NS). Because of these results, the majority of patients received abciximab relatively late, at the time of PCI in clinical practices.

However, the ADMIRAL study (3) demonstrated that early administration of abciximab in patients with ST elevation acute myocardial infarction prior to PCI improves clinical outcomes and also no specifically designed randomized study has addressed the issue of early upstream use of GP IIb/IIIa inhibitors in ST elevation acute myocardial infarction who are undergoing PCI, especially in the era of routine pretreatment with 600 mg of clopidogrel. Therefore, the objective of the randomized ECLAT-STEMI study was to assess the hypothesis that the early upstream use of Clotinab is a useful therapy in patients with ST elevation MI undergoing PCI compared to "provisional use", even after pretreatment with a 600-mg loading dose of clopidogrel.

The Clotinab, a product made in ISU ABXIS CO., LTD, was produced by inserting anti- platelet GP IIb/IIIa DNA into Chinese hamster's ovary cell. Since it contains identical active ingredient as ReoPro® on the domestic market, it is expected that the Clotinab has same efficacy to ReoPro® as a platelet GP IIb/IIIa receptor inhibitor. Recently, the Clotinab is shown to be safe and effective in preventing ischemic heart complications for high-risk patients who will undergo PCI.

2\. Study Protocol 2-1. Objectives: Randomized, controlled, single blind, multi-center trial To assess the hypothesis that the early upstream use of Clotinab is a useful therapy in patients with ST elevation myocardial infarction undergoing PCI compared to "provisional use", even after pretreatment with a 600-mg loading dose of clopidogrel.

2-2. Study Design: Efficacy of CLotinab in ST-elevation Acute myocardial infarction Trial - ST Elevation Myocardial Infarction (The ECLAT - STEMI study)

2-3. Study Endpoints:

1. Primary Endpoint: Efficacy To evaluate the effect of early upstream use of Clotinab (started at emergency room) co-administered with clopidogrel loading dose 600mg in STEMI

\- 30 Days MACCE (death, MI, TVR, cerebrovascular event)
2. Secondary Endpoint: Efficacy and Safety To evaluate the safety of early upstream use of Clotinab (started at emergency room) co-administered with clopidogrel loading dose 600mg in STEMI

* TIMI flow at before and after PCI
* Corrected TIMI frame count after PCI
* Procedural success (No reflow incidence)
* MACCE at 9 month
* Major bleeding event (According to TIMI criteria)
* 9 month Angiography Finding

Conditions

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Myocardial Infarction

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Outcome Assessors

Study Groups

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Provisional use of Clotinab

Provisional use of clotinab

Group Type ACTIVE_COMPARATOR

Clotinab

Intervention Type DRUG

Clotinab: IV bolus 0.25 mg per Kg and a 12-hour IV infusion 0.125 μg per kg

Upstream use of clotinab

early upstream use of clotinab

Group Type EXPERIMENTAL

Clotinab

Intervention Type DRUG

Clotinab: IV bolus 0.25 mg per Kg and a 12-hour IV infusion 0.125 μg per kg

Interventions

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Clotinab

Clotinab: IV bolus 0.25 mg per Kg and a 12-hour IV infusion 0.125 μg per kg

Intervention Type DRUG

Clotinab

Clotinab: IV bolus 0.25 mg per Kg and a 12-hour IV infusion 0.125 μg per kg

Intervention Type DRUG

Other Intervention Names

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Clotinab, Gp IIb/IIIa inhibitor Clotinab, Gp IIb/IIIa inhibitor

Eligibility Criteria

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Inclusion Criteria

1. The patient must be at least 18-80 years of age.
2. The patient had the symptoms of acute myocardial infarction within 12 hours with ST segment elevation of more than 1 mm in at least two contiguous leads of EKG or new onset LBBB.
3. The patient or guardian agrees to the study protocol and provides informed, written consent.

Exclusion Criteria

1. Patients to whom PCI can not be undergone within 12 hours from receiving the study drug
2. Cardiogenic shock or symptomatic hypotension or sitting SBP \< 95 mmHg
3. The history of major surgery, trauma, retinal hemorrhage, significant gastrointestinal or genitourinary bleeding within recent 6 weeks;
4. History of cerebrovascular attack within two years, or cerebrovascular attack with a significant residual neurological deficit
5. Severe or malignant hypertension (= sitting SBP \> 180 mmHg and/or sitting DBP \> 105 mmHg)
6. The patients who require oral anticoagulants during the trial; patients who have been administrated oral anticoagulants within 7 days
7. The history or diagnosis of vasculitis; renal insufficiency (the level of serum creatinine is two times higher than the upper limit of normal of each center)
8. The patients who could not take anti-platelet drugs
9. The patients who might die of other disease than cardiac disease during the trial.
Minimum Eligible Age

18 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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ISU ABXIS (Korea pharmaceutical company)

UNKNOWN

Sponsor Role collaborator

Yonsei University

OTHER

Sponsor Role lead

Responsible Party

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Severance hospital, Yonsei university

Principal Investigators

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Yangsoo Jang, MD, Ph D

Role: PRINCIPAL_INVESTIGATOR

Division of Cardiology, Cardiovascular Hospital, Yonsei University

Locations

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Dankook University Hospital

Cheonan, , South Korea

Site Status

Chonbuk National University Hospital

Cheonju, , South Korea

Site Status

Keimyung University Dongsan Medical Center

Daegu, , South Korea

Site Status

Kyungpook National University Hospital

Daegu, , South Korea

Site Status

Yeungnam University Hospital

Daegu, , South Korea

Site Status

Chungnam National University Hospital

Daejeon, , South Korea

Site Status

National Health Insurance Corporation Ilsan Hospital

Goyang, , South Korea

Site Status

Dongguk University International Hospital

Goyang, , South Korea

Site Status

Myongji Hospital

Goyang, , South Korea

Site Status

Chonnam National University Hospital

Gwangju, , South Korea

Site Status

Pusan National University Hospital

Pusan, , South Korea

Site Status

Inje University Pusan Paik Hospital

Pusan, , South Korea

Site Status

Hallym University sacred Heart Hospital

Pyungchon, , South Korea

Site Status

Seoul National University Bundang Hospital

Seongnam, , South Korea

Site Status

Yonsei University

Seoul, , South Korea

Site Status

Kyung Hee University Medical Center

Seoul, , South Korea

Site Status

Kyung Hee University East-West Nea Medical Center

Seoul, , South Korea

Site Status

Samsung Medical Center

Seoul, , South Korea

Site Status

Yonsei University Youngdong Severance Hospital

Seoul, , South Korea

Site Status

Catholic University of Korea, kangnam St. Mary's Hospital

Seoul, , South Korea

Site Status

Inje University Sanggye Paik Hospital

Seoul, , South Korea

Site Status

Asan Medical Center

Seoul, , South Korea

Site Status

Korea University Anam Hospital

Seoul, , South Korea

Site Status

Eulji General Hospital

Seoul, , South Korea

Site Status

Catholic University of Korea, St. Mary's Hospital

Seoul, , South Korea

Site Status

Hallym University kangnam sacred Heart Hospital

Seoul, , South Korea

Site Status

Gachon University Gil Medical Center

Seoul, , South Korea

Site Status

Korea University Guro Hospital

Seoul, , South Korea

Site Status

Ajou University Hospital

Suwon, , South Korea

Site Status

Ulsan University Hospital

Ulsan, , South Korea

Site Status

Wonju Christian Hospital

Wŏnju, , South Korea

Site Status

Countries

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South Korea

References

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Kim JS, Park SM, Kim BK, Ko YG, Choi D, Hong MK, Seong IW, Kim BO, Gwon HC, Hong BK, Tahk SJ, Park SW, Kim CJ, Jeong MH, Yoon J, Jang Y; ECLAT-STEMI Trial investigators. Efficacy of clotinab in acute myocardial infarction trial-ST elevation myocardial infarction (ECLAT-STEMI). Circ J. 2012;76(2):405-13. doi: 10.1253/circj.cj-11-0676. Epub 2011 Dec 7.

Reference Type DERIVED
PMID: 22146757 (View on PubMed)

Other Identifiers

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ISU-CLT-07001

Identifier Type: -

Identifier Source: org_study_id

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