Early Aggressive Versus Initially Conservative Therapy in Elderly Patients With Non-ST-Elevation Acute Coronary Syndrome

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

NA

Total Enrollment

313 participants

Study Classification

INTERVENTIONAL

Study Start Date

2007-10-31

Study Completion Date

2011-06-30

Brief Summary

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A randomized study comparing an early aggressive with an initially conservative strategy in patients \>74 y.o. with non-ST-elevation acute coronary syndrome.

This study had generated a secondary one:

"Causes of death in elderly patients with Non-ST-Elevation Acute Coronary Syndrome; predictors of in-hospital and follow-up death"

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Detailed Description

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Patients \>74 y.o. with non-ST-elevation acute coronary syndrome will be randomised to an early aggressive (coronary angiography within 72 hours followed, when indicated, by revascularization) or an initially conservative strategy (medical therapy, and coronary angiography only for refractory ischemia).

As reported in Amendment 1, the trial was stopped in May 2010 after the enrolment of 313 patients, which was the minimum sample size calculated in order to achieve a 80% power of detecting a difference in the primary-endpoint rate from 40% in the conservative arm to 25% in the invasive arm, based upon the log-rank test for survival curves (1-beta 0.80; 2-tailed alpha 0.05)

Conditions

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Acute Coronary Syndrome

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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1

Coronary angiography within 72h and revascularization as clinical indicated

Group Type EXPERIMENTAL

systematic coronary intervention

Intervention Type OTHER

Coronary angiography within 72 hrs

2

Initially conservative treatment with coronary angiography only for recurrent ischemia

Group Type SHAM_COMPARATOR

coronary intervention only for cases refractory to medical therapy

Intervention Type OTHER

Initially conservative treatment with coronary angiography only for recurrent ischemia

Interventions

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systematic coronary intervention

Coronary angiography within 72 hrs

Intervention Type OTHER

coronary intervention only for cases refractory to medical therapy

Initially conservative treatment with coronary angiography only for recurrent ischemia

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Over 74 years of age.
* Have had symptoms suggestive of acute myocardial ischemia at rest within 48 hours prior to randomization, and ischemic ECG changes or elevated levels of biochemical markers of myocardial damage.
* Provide written informed consent before randomization.

Exclusion Criteria

* Secondary causes of acute myocardial ischemia.
* Ongoing myocardial ischemia despite maximally titrated anti-ischemic therapy (invasive strategy recommended).
* Ongoing signs of acute heart failure despite treatment (invasive strategy recommended).
* Percutaneous coronary intervention or bypass surgery within 30 days prior to randomization.
* A serum creatinine level greater than 2.5 mg/dL.
* Active internal bleeding, history of hemorrhagic diathesis or recent transfusion of red blood cells, whole blood or platelets.
* History of cerebrovascular accident within the previous month.
* Known current platelet count \< 90,000 cells/mL.
* Gastrointestinal or genitourinary bleeding of clinical significance within 6 weeks prior to randomization.
* Concomitant severe obstructive lung disease, malignancy or neurologic deficit limiting follow-up or adherence to the study protocol.
* Participation in any phase of another clinical research study involving the evaluation of another investigational drug or device within 30 days prior to randomization.
* Inability to give at least verbal informed consent to the study.

Minimum Eligible Age

74 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No