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Acute ST-segment Elevation Myocardial InfarctionPhase 4EARLY-MYONCT01930682

EARLY Routine Catheterization After Alteplase Fibrinolysis vs. PPCI in ST-Segment-Elevation MYOcardial Infarction

A Phase 4 study testing Alteplase, Early post-fibrinolytic catheterisation and Primary PCI in people with Acute ST-segment Elevation Myocardial Infarction, run by RenJi Hospital at 1 site in China.

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 EARLY-MYO (EARLY routine catheterization after alteplase fibrinolysis vs. primary PCI in acute ST-segment elevation MYOcardial infarction) is an investigator-initiated, prospective, multicenter, randomized (1:1), open-label, actively-controlled, parallel group, non-inferiority trial comparing the efficacy and… Read more about this study

Who is it for?
Ages 18 to 75 years
What is being tested?
Alteplase, Early post-fibrinolytic catheterisation and Primary PCI
Could I receive a placebo?
No, everyone receives an active treatment
How many people
344 participants
Where
1 siteChina
Study dates
13 Jan 2014to 12 Sep 2016
Phase
Phase 4
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 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Age: over 18 or 18 years old, less than 75 years old;
  • Patents with myocardial infarction who have symptom onset within 6h before randomization;
  • ECG: ≥2 mm ST-segment elevation in 2 contiguous precordial leads or ≥1 mm ST-segment elevation in 2 contiguous extremity leads ;
  • Patents with an expected PCI-related delay [expected time delay from FMC to first balloon dilation≥90 min, and difference between the time of FMC to balloon dilation minus the time from FMC to start of fibrinolysis ≥60 minutes)];
  • Signed informed consent form prior to trial participation.
  • Previous enrolment in this study or treatment with an investigational drug or device under another study protocol in the past 7 days;
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  • Pregnancy or lactating;
  • Body weight <40kg or >125kg;
  • Known hypersensitivity to any drug that may appear in the study;
  • Inability to follow the protocol and comply with follow-up requirements or any other reason that the investigator feels would place the patient at increased risk.

Who cannot join

  • Evidence of cardiac rupture;
  • ECG: new left bundle branch block;
  • "Diagnosis to balloon inflation" time over 3 hours;
  • Thrombolysis contradictions:
  • Definite cerebral apoplexy history;
  • Any history of central nervous system damage (i.e. neoplasm, aneurysm, intracranial or spinal surgery) or recent trauma to the head or cranium (i.e. < 3 months);
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  • Active bleeding or known bleeding disorder/diathesis;
  • Recent administration of any i.v. or s.c. anticoagulation within 12 hours including unfractionated heparin, enoxaparin and/or bivalirudin or current use of oral anticoagulation(warfarin or coumadin);
  • Uncontrolled hypertension, defined as a single blood pressure measurement ≥ 180/110 mm Hg (systolic BP ≥ 180 mm Hg and/or diastolic BP ≥ 110 mm Hg) prior to randomisation;
  • Major surgery, biopsy of a parenchymal organ, or significant trauma within the past 2 months (this includes any trauma associated with the current myocardial infarction); Prolonged or traumatic cardiopulmonary resuscitation (> 10 minutes) within the past 2 Weeks Major surgery pending in the following 30 days;
  • Severe complication
  • Other diseases with life expectancy ≤12 months;
  • Any history of Severe renal or hepatic dysfunction(hepatic failure, cirrhosis, portal hypertension and active hepatitis); Neutropenia, thrombocytopenia ; Known acute pancreatitis;
  • Known acute pericarditis and/or subacute bacterial endocarditis;
  • Arterial aneurysm, arterial/venous malformation and aorta dissection;
  • Complex heart condition
  • Cardiogenic shock(SBP <90 mmHg after fluid infusion or SBP<100 mmHg after vasoactive drugs);
  • PCI within previous 1 month or Previous coronary-artery bypass surgery(CABG);
  • Previously known multivessel coronary artery disease not suitable for revascularization;
  • Hospitalisation for cardiac reason within past 48 hours;
  • Not suitable for clinical trial

Trial locations and contacts

1 site in 1 country.

China1 site
  • RenJi Hospital

    Shanghai, Shanghai Municipality, 200127

Other trials in China

About this study

Official title: EARLY Routine Catheterization or Rescue Angioplasty After Alteplase Fibrinolysis vs. Primary Angioplasty in Acute ST-elevation MYOcardial Infarction: An Open, Prospective, Randomized, Multicentre Trial

The EARLY-MYO (EARLY routine catheterization after alteplase fibrinolysis vs. primary PCI in acute ST-segment elevation MYOcardial infarction) is an investigator-initiated, prospective, multicenter, randomized (1:1), open-label, actively-controlled, parallel group, non-inferiority trial comparing the efficacy and safety of a PhI strategy with half-dose fibrinolysis versus PPCI in STEMI patients presenting within 6 hours after symptom onset and with an expected PCI-related delay of ≥60 min.

Read the detailed description

Early, successful restoration of myocardial perfusion after a ST-elevation myocardial infarction (STEMI) is the most effective way to reduce final infarct size and improve clinical outcome. Reperfusion for STEMI treatment in the modern era encompasses mechanical and pharmacological strategies. It is generally well-accepted that primary percutaneous coronary intervention (PPCI) is the preferred reperfusion strategy for all STEMI patients when it can be performed within the guideline-recommended timeframe at PPCI-capable facilities. However, PPCI is not universally available, and delays in performing percutaneous coronary intervention (PCI) are common in real-world practice. Even in some large cities, patients have a high chance of presenting to hospitals not providing around-the-clock PPCI service. Given this background, in recent years there has been great interest and progress in creating triage strategies for STEMI patients who cannot receive timely PPCI.

Pharmaco-invasive (PhI) strategy, an early reperfusion strategy by initial prompt fibrinolysis with subsequent early catheterization (with either routine early PCI after successful fibrinolysis or rescue PCI as needed), has been proposed as a therapeutic option for STEMI patients when timely PPCI is not feasible. However, current evidence on the efficacy and safety of PhI strategy in STEMI patients is limited, and the role of PhI strategy in STEMI continues to be debated. Given that no randomized clinical trial is available to compare a PhI strategy with half-dose fibrinolytic regimen versus PPCI in STEMI patients, investigators plan to perform a controlled, randomized trial to evaluate the efficacy and safety of a PhI strategy with half-dose alteplase fibrinolysis versus PPCI in STEMI patients.

Being tested
Alteplase, Early post-fibrinolytic catheterisation, Primary PCI
Keywords
Myocardial Infarction, Catheterization, Fibrinolysis
Medical subject headings
ST Elevation Myocardial Infarction, Myocardial Infarction

What participants receive

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

  • AlteplaseDrug

    Also called rt-PA

    Alteplase is given as a intravenous bolus (8-mg) followed by 42 mg iv gtt in 90 min.

  • Early post-fibrinolytic catheterisationProcedure or surgery

    Early post-fibrinolytic catheterisation after 3 hours but within 24 hours of the start of fibrinolytic therapy is performed, if required, PCI or, in case of insufficient ST resolution at 90 min,rescue PCI. The decision on rescue PCI will, however, be taken 90 min (or earlier if clinically indicated) after injection of alteplase according to the ST resolution (less than 50% reduction in ST-segment elevation).

  • Primary PCIProcedure or surgery

    For STEMI Patients,primary PCI is performed within 12 hours after the onset.

Study groups in NCT01930682
Study groupRoleWhat they receive
Early post-fibrinolytic catheterisationExperimentalFor STEMI Patients, alteplase is given as a intravenous bolus (8-mg) followed by 42 mg iv gtt in 90 min.Early routine catheterization after 3 hours but within 24 hours of the start of fibrinolytic therapy is performed, if required, PCI or, in case of insufficient ST resolution at 90 min,rescue PCI. The decision on rescue PCI will, however, be taken 90 min (or earlier if clinically indicated) after injection of alteplase according to the ST resolution (less than 50% reduction in ST-segment elevation).
Receives: Drug: Alteplase; Procedure: Early post-fibrinolytic catheterisation
Primary PCIOtherFor STEMI Patients,primary PCI is performed without fibrinolytic therapy.
Receives: Procedure: Primary PCI

What is being measured

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

  1. Complete Epicardial and myocardial reperfusion;

    defined as TIMI Flow Grade 3 (TFG 3) for epicardial reperfusion and TIMI Myocardial Perfusion Grade 3 (TMPG 3) for myocardial reperfusionand resolution of the initial sum of ST-segment elevation ≥ 70% in 60 min post catheterisation

    Measured: Immediately after PCI

Secondary outcomes (7)
  1. TIMI Flow Grade (TFG)

    TIMI Flow Grade (TFG) assesses flow in the epicardial arteries.

    Measured: Immediately after PCI

  2. TIMI Myocardial Perfusion Grade (TMPG)

    TMPG is an angiographic measure of myocardial perfusion.

    Measured: Immediately after PCI

  3. ST-segment Resolution

    Resolution of the initial sum of ST-segment elevation ≥ 70%.

    Measured: Immediately after PCI

  4. TIMI Frame Count (CTFC)

    CTFC is a continuous measurement assessing flow in the epicardial arteries.

    Measured: Immediately after PCI

  5. TIMI Myocardial Perfusion Frame Count (TMPFC)

    TMPFC is a novel method to standardize and quantify myocardial perfusion by timing the filling and washout of contrast in the myocardium using cine-angiographic frame-counting. Briefly, the first frame of TMPFC was defined as the frame that clearly demonstrated the first appearance of myocardial blush beyond the IRA (F1). The last frame of TMPFC was then defined as the frame where contrast or myocardial blush disappeared (F2). TMPFC is F2-F1 frame counts at a filming rate of 15 frames/sec, or (F2-F1)×2 frame counts at the corrected filming rate of 30 frames/sec.

    Measured: Immediately after PCI

  6. Wall motion score index (WMSI) by echocardiography

    The WMSI will be calculated as the sum of the scores in each segment divided by 16. Each segment will be given a score based on its systolic function (normal = 1, hypokinesis = 2, akinesis = 3).

    Measured: in-hospital and 30 day

  7. Clinical Outcomes

    All cause death, non-fatal reinfarction, heart failure, and stroke after randomization constitute the clinical endpoints.

    Measured: 30 days after randomization

Timeline

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

  1. First posted29 Aug 2013 (estimated)
  2. Study start13 Jan 2014
  3. Primary completionSep 2016
  4. Study completion12 Sep 2016

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 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
344 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01930682
Sponsor's protocol ID
BI135.326
Other IDs
12410708300
Acronym
EARLY-MYO
Status last verified
Aug 2013
First submitted
19 Aug 2013
Last updated
29 Aug 2017
Results posted
No
Data monitoring committee
Yes

Publications

  • Canadian Cardiovascular Society; American Academy of Family Physicians; American College of Cardiology; American Heart Association; Antman EM, Hand M, Armstrong PW, Bates ER, Green LA, Halasyamani LK, Hochman JS, Krumholz HM, Lamas GA, Mullany CJ, Pearle DL, Sloan MA, Smith SC Jr, Anbe DT, Kushner FG, Ornato JP, Pearle DL, Sloan MA, Jacobs AK, Adams CD, Anderson JL, Buller CE, Creager MA, Ettinger SM, Halperin JL, Hunt SA, Lytle BW, Nishimura R, Page RL, Riegel B, Tarkington LG, Yancy CW. 2007 focused update of the ACC/AHA 2004 guidelines for the management of patients with ST-elevation myocardial infarction: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines. J Am Coll Cardiol. 2008 Jan 15;51(2):210-47. doi: 10.1016/j.jacc.2007.10.001. No abstract available.

    PubMed 18191746
  • Gibson CM. Primary angioplasty compared with thrombolysis: new issues in the era of glycoprotein IIb/IIIa inhibition and intracoronary stenting. Ann Intern Med. 1999 May 18;130(10):841-7. doi: 10.7326/0003-4819-130-10-199905180-00019.

    PubMed 10366375
  • Borgia F, Goodman SG, Halvorsen S, Cantor WJ, Piscione F, Le May MR, Fernandez-Aviles F, Sanchez PL, Dimopoulos K, Scheller B, Armstrong PW, Di Mario C. Early routine percutaneous coronary intervention after fibrinolysis vs. standard therapy in ST-segment elevation myocardial infarction: a meta-analysis. Eur Heart J. 2010 Sep;31(17):2156-69. doi: 10.1093/eurheartj/ehq204. Epub 2010 Jul 2.

    PubMed 20601393
  • Van de Werf F, Bax J, Betriu A, Blomstrom-Lundqvist C, Crea F, Falk V, Filippatos G, Fox K, Huber K, Kastrati A, Rosengren A, Steg PG, Tubaro M, Verheugt F, Weidinger F, Weis M; ESC Committee for Practice Guidelines (CPG). Management of acute myocardial infarction in patients presenting with persistent ST-segment elevation: the Task Force on the Management of ST-Segment Elevation Acute Myocardial Infarction of the European Society of Cardiology. Eur Heart J. 2008 Dec;29(23):2909-45. doi: 10.1093/eurheartj/ehn416. Epub 2008 Nov 12. No abstract available.

    PubMed 19004841
  • Ding S, Pu J, Qiao ZQ, Shan P, Song W, Du Y, Shen JY, Jin SX, Sun Y, Shen L, Lim YL, He B. TIMI myocardial perfusion frame count: a new method to assess myocardial perfusion and its predictive value for short-term prognosis. Catheter Cardiovasc Interv. 2010 Apr 1;75(5):722-32. doi: 10.1002/ccd.22298.

    PubMed 19960517
  • Fernandez-Aviles F, Alonso JJ, Pena G, Blanco J, Alonso-Briales J, Lopez-Mesa J, Fernandez-Vazquez F, Moreu J, Hernandez RA, Castro-Beiras A, Gabriel R, Gibson CM, Sanchez PL; GRACIA-2 (Groupo de Analisis de Cardiopatia Isquemica Aguda) Investigators. Primary angioplasty vs. early routine post-fibrinolysis angioplasty for acute myocardial infarction with ST-segment elevation: the GRACIA-2 non-inferiority, randomized, controlled trial. Eur Heart J. 2007 Apr;28(8):949-60. doi: 10.1093/eurheartj/ehl461. Epub 2007 Jan 23.

    PubMed 17244641
  • Pu J, Ding S, Ge H, Han Y, Guo J, Lin R, Su X, Zhang H, Chen L, He B; EARLY-MYO Investigators. Efficacy and Safety of a Pharmaco-Invasive Strategy With Half-Dose Alteplase Versus Primary Angioplasty in ST-Segment-Elevation Myocardial Infarction: EARLY-MYO Trial (Early Routine Catheterization After Alteplase Fibrinolysis Versus Primary PCI in Acute ST-Segment-Elevation Myocardial Infarction). Circulation. 2017 Oct 17;136(16):1462-1473. doi: 10.1161/CIRCULATIONAHA.117.030582. Epub 2017 Aug 27.

    PubMed 28844990

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Alteplase, Early post-fibrinolytic catheterisation and Primary PCI in people with Acute ST-segment Elevation Myocardial Infarction, run by RenJi Hospital at 1 site in China.

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 10 inclusion and 21 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 29 Aug 2017. 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 China. 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.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

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

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?

Complete Epicardial and myocardial reperfusion; (time frame: Immediately after PCI). 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 NCT01930682, which also lists 7 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 29 Aug 2017.

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