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Phase 3 Safety and Imaging Study of AI-700 in Patients With Suspected Coronary Artery Disease Undergoing Coronary Angiography

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00156845
Recruitment Status : Completed
First Posted : September 12, 2005
Last Update Posted : July 14, 2006
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Brief Summary:
This study was designed to evaluate the ability of AI-700-enhanced rest-stress echocardiography to detect coronary artery disease (CAD) in patients with suspected ischemic heart disease who are indicated for coronary angiography.

Condition or disease Intervention/treatment Phase
Coronary Artery Disease Procedure: AI-700 contrast-enhanced echocardiography Phase 3

Detailed Description:

Assessment of myocardial perfusion has been demonstrated to provide both diagnostic and prognostic value to patients with ischemic heart disease by allowing the clinician to assess the hemodynamic significance of coronary artery disease (CAD). The primary objective of the clinical development program for AI-700 is to demonstrate the safety and efficacy of AI-700 as an intravenous ultrasound contrast agent in patients with suspected myocardial perfusion defects.

The patient population is comprised of patients being evaluated for inducible ischemia and indicated for coronary angiography. The primary study objective was to determine the accuracy, sensitivity, and specificity of AI-700-enhanced echocardiographic imaging for detecting CAD, using coronary angiography/left ventriculography (ANGIO/LVG) as the reference standard.

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Study Type : Interventional  (Clinical Trial)
Enrollment : 450 participants
Allocation: Non-Randomized
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Diagnostic
Official Title: A Phase 3, International, Multicenter, Open-Label, Dual-Injection, Echocardiographic Imaging and Safety Study in Patients With Suspected Ischemic Heart Disease Undergoing Diagnostic Coronary Angiography (Real-Time Assessment of Myocardial Perfusion With Echocardiography: RAMP 2)
Study Start Date : December 2003
Study Completion Date : June 2006

Resource links provided by the National Library of Medicine

Primary Outcome Measures :
  1. Accuracy, sensitivity, and specificity of AI-700 ECHO in assessing CAD
  2. Safety of AI-700 administered IV to suspected CAD patients

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 80 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Men and non-pregnant/non-lactating women with a history of typical or atypical chest pain (angina) who were 18 to 80 years of age and who had recently undergone coronary angiography or were scheduled for coronary angiography within 30 days after AI-700 administration were to be enrolled. Eligible patients must have also undergone SPECT for evaluation of CAD within 45 calendar days prior to AI-700 administration, or be scheduled for an “on-study” SPECT on the same day as AI-700 dosing or an “off-study” SPECT within 15 days following AI-700 dosing.

Exclusion Criteria:

  • Study candidates who have had any of the following conditions were to be excluded from the study: any clinically unstable condition or major surgery within 7 days prior to AI-700 dosing; an acute MI; cerebrovascular accident or transient ischemic attack within 30 days prior to dosing; congestive heart failure graded as New York Heart Association Grade 4 within 3 months prior to dosing; significant left main CAD; previous coronary artery bypass graft; moderate to severe chronic obstructive pulmonary disease; or oxygen saturation < 90% at rest.
  • Candidates with significant cardiovascular or pulmonary structural and/or functional abnormality, or in whom visualization of the left ventricle was not adequate for evaluation of cardiac function during the Exclusion ECHO, were to be ineligible to participate in the study.
  • Patients who had a history of MI of non-CAD etiology or who exhibited new or changing ECG abnormalities at any time between Screening and AI-700 dosing were to be similarly excluded.
  • Other exclusion criteria included: participation in an investigational drug/device study within 30 days prior to dosing (90 days in UK sites), non-seasonal asthma within the past 3 years or recent seasonal asthma requiring prescription medication, organ transplant or end-stage organ failure, and active seizure disorder.
  • Candidates were to be excluded for uncontrolled atrial fibrillation, frequent premature ventricular or atrial contractions, history of prolonged QT/QTc, use of automatic implantable cardioverter/defibrillator or pacemaker, and any rhythm abnormality that had not been evaluated and treated by a specialist or for which current treatment did not ensure patient safety.
  • Candidates who had used methylated xanthines within 24 hours of dosing were also to be excluded. Patients were also to be excluded if aminophylline, theophylline, or dipyridamole were contraindicated according to each agent’s product labeling.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00156845

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United States, Massachusetts
Acusphere, Inc.
Watertown, Massachusetts, United States, 02472
Sponsors and Collaborators
Additional Information:
Publications automatically indexed to this study by Identifier (NCT Number):
Layout table for additonal information Identifier: NCT00156845    
Other Study ID Numbers: AI-700-33
First Posted: September 12, 2005    Key Record Dates
Last Update Posted: July 14, 2006
Last Verified: July 2006
Keywords provided by Acusphere:
coronary artery disease
cardiac imaging
heart disease
myocardial contrast enhancement
myocardial perfusion
wall motion
ultrasound contrast agent
Additional relevant MeSH terms:
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Coronary Artery Disease
Myocardial Ischemia
Coronary Disease
Heart Diseases
Cardiovascular Diseases
Arterial Occlusive Diseases
Vascular Diseases