Safety of KAI-9803 for Injection With Angioplasty Following Heart Attack

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: NCT00093197
Recruitment Status : Completed
First Posted : October 7, 2004
Last Update Posted : September 2, 2011
Information provided by (Responsible Party):
KAI Pharmaceuticals

Brief Summary:
Restoring blood flow to coronary arteries as quickly as possible is the best way to reduce the damage to the muscle that occurs with a heart attack. However, up to 25-50% of patients who have angioplasty may have ongoing damage to the heart muscle when the blockage is opened and blood flow is restored. Complications which may result from this ongoing damage include a larger area of damaged muscle in the heart, enlargement of the heart, an increased risk of death, and an increased risk of heart failure. Some of the ongoing damage may involve increased levels of the protein kinase C (PKC) enzyme. KAI-9803 is a selective inhibitor of delta PKC. In this study, delta PKC is used with angioplasty and other standard procedures to restore blood flow after a heart attack. This study is designed to evaluate safety of different amounts of KAI-9803 when used in treating heart attack patients undergoing angioplasty. We will also try to evaluate whether KAI-9803 can reduce the amount of heart muscle damage and the complications that may occur in these patients.

Condition or disease Intervention/treatment Phase
Myocardial Infarction Drug: KAI-9803 for Injection Drug: Placebo Phase 1 Phase 2

Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 154 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double (Participant, Investigator)
Primary Purpose: Treatment
Official Title: Intracoronary KAI-9803 for Injection as an Adjunct to Primary Percutaneous Coronary Intervention for Acute ST-Elevation Myocardial Infarction
Study Start Date : September 2004
Actual Primary Completion Date : October 2006
Actual Study Completion Date : October 2006

Resource links provided by the National Library of Medicine

U.S. FDA Resources

Arm Intervention/treatment
Experimental: A1: KAI-9803 Drug: KAI-9803 for Injection
0.05 mg
Experimental: A2: KAI-9803 Drug: KAI-9803 for Injection
0.5 mg
Experimental: A3: KAI-9803 Drug: KAI-9803 for Injection
1.25 mg
Experimental: A4: KAI-9803 Drug: KAI-9803 for Injection
5 mg
Placebo Comparator: A5: Placebo Drug: Placebo

Primary Outcome Measures :
  1. Number of participants with adverse events [ Time Frame: 30 days ]
  2. Number of participants with major cardiac events (death, congestive heart failure, recurrent myocardial infarction, repeat target vessel revascularization) [ Time Frame: 6 months ]

Secondary Outcome Measures :
  1. Creatine kinase-myocardial band (CK-MB) [ Time Frame: 7 days or hospitalization discharge, whichever occurs first ]
  2. ST-segment elevation [ Time Frame: 24 hours ]
  3. Angiography vessel flow [ Time Frame: Day 1 ]
  4. Infarct size by single photon emission computed tomography (SPECT) [ Time Frame: 14 days ]
  5. Echocardiographic left ventricular ejection fraction (LVEF) [ Time Frame: 14 days ]

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Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Symptoms of cardiac ischemia at rest or with increasing frequency (angina or angina equivalent), with episodes lasting for at least 30 minutes within 6 hours of presentation
  • Persistent ST-segment elevation of ≥ 0.2 mV in at least 2 contiguous precordial leads indicative of anterior Myocardial Infarction (MI) location (leads V1-V4)
  • At least 18 years old
  • Complete occlusion of the left anterior descending artery (Thrombolysis in Myocardial Infarction (TIMI) 0-1 flow) demonstrated on the initial angiogram
  • Culprit lesion suitable for primary percutaneous coronary intervention (PCI)

Exclusion Criteria:

  • Any left bundle branch block (new or old), intraventricular conduction defect, or paced rhythm that would obscure the diagnosis of acute anterior ST Elevation Myocardial Infarction (STEMI)
  • Any prior documented myocardial infarction (MI), including old Q waves documented on prior ECGs or a clinical history of definite MI
  • Any prior coronary artery bypass grafting (CABG)
  • Cardiogenic shock at initial hospital presentation, consisting of persistent hypotension (systolic blood pressure < 90 mm Hg for > 20 minutes) and signs of end-organ dysfunction (oliguria, altered mental status, poor peripheral perfusion, and lactic acidosis)
  • TIMI grade 2 or 3 flow in the left anterior descending artery documented on the initial diagnostic angiogram
  • Culprit lesion in the left anterior descending artery that is not suitable for primary PCI
  • Treatment with intravenous fibrinolytic therapy (i.e. alteplase, reteplase, tenecteplase, or streptokinase) within the 24 hours before presentation
  • Pregnancy
  • Know baseline creatinine > 2.5 mg/dL without renal dialysis/renal replacement therapy within the 30 days before presentation
  • Inability to comply with study procedures, inability to undergo cardiac catheterization or primary percutaneous coronary intervention (PCI)
  • Participation in a study of experimental therapy (drug or device) within 30 days of presentation, or prior participation in this study

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): NCT00093197

United States, North Carolina
Duke Clinical Research Institute
Durham, North Carolina, United States, 27715
Sponsors and Collaborators
KAI Pharmaceuticals

Responsible Party: KAI Pharmaceuticals Identifier: NCT00093197     History of Changes
Other Study ID Numbers: KAI-9803-001
First Posted: October 7, 2004    Key Record Dates
Last Update Posted: September 2, 2011
Last Verified: August 2011

Additional relevant MeSH terms:
Myocardial Infarction
ST Elevation Myocardial Infarction
Pathologic Processes
Myocardial Ischemia
Heart Diseases
Cardiovascular Diseases
Vascular Diseases