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| Name | Class |
|---|---|
| Astellas Scientific & Medical Affairs, Inc. | INDUSTRY |
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The purpose of this study is to determine whether a blunted heart rate response to regadenoson is an independent predictor of sudden cardiac death.
In patients with heart failure and in those with a history of sudden cardiac death, an Implantable Cardiac Defibrillator (ICD) reduces death rates. However, not all patients with an ICD receive appropriate therapy from it. Inappropriate ICD shocks are common and are associated with worse quality of life and increased death rate. We hope to establish a better predictor of risk of sudden cardiac death and of response to ICD. We are conducting a prospective observational study of 150 patients (18-80 years) with an indication for ICD implantation for primary prevention of sudden cardiac death. Prior to the implantation of a clinically indicated ICD, the heart rate response to regadenoson will be assessed. Regadenoson will be administered intravenously as a fixed intravenous bolus dose of 400 μg followed by a 5 mL saline flush.
The main objectives of this proposal are to investigate whether:
We Hypothesize that:
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Regadenoson | Experimental | Prior to the implantation of a clinically indicated ICD, the heart rate response to regadenoson will be assessed. Regadenoson will be administered intravenously as a fixed intravenous bolus dose of 400 μg followed by a 5 mL saline flush. Medications (including beta-blockers) will be withheld on the morning of the test. The heart rate and blood pressure will be measured at baseline and every minute after regadenoson bolus for at least 5 minutes and until the heart rate and blood pressure are clearly returning towards baseline. -------------------------------------------------------------------------------- |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| regadenoson | Drug | Prior to the implantation of a clinically indicated ICD, the heart rate response to regadenoson will be assessed. Regadenoson will be administered intravenously as a fixed intravenous bolus dose of 400 μg followed by a 5 mL saline flush. Medications (including beta-blockers) will be withheld on the morning of the test. The heart rate and blood pressure will be measured at baseline and every minute after regadenoson bolus for at least 5 minutes and until the heart rate and blood pressure are clearly returning towards baseline. |
| Measure | Description | Time Frame |
|---|---|---|
| Sudden Cardiac Death | Sudden cardiac death will be defined as death within 1 hour of symptom onset, or an unobserved death in which the patient was seen and known to be doing well within 24 hours of death. Survivors of aborted sudden cardiac death, resuscitated cardiac arrest, and those receiving appropriate ICD therapy will also be considered to have experienced sudden cardiac death and will be included in the primary end point. | Until end of follow-up, median follow-up 40 months |
| Measure | Description | Time Frame |
|---|---|---|
| All-cause Death | death from any cause | Until end of follow-up, median follow-up 40 months |
| First Appropriate ICD Therapy | antitachycardia pacing therapy or shock for tachyarrhythmia determined by evaluation of the clinical information and by device diagnostics to be either ventricular fibrillation or ventricular tachycardia |
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Inclusion criteria:
Age 19-80 years
Female subjects must be (a) at least one year post-menopause or surgically sterile or (b) be non-pregnant and (c) non-lactating.
Subject must be able and willing to provide written informed consent
Subject must be referred for a clinically indicated ICD and fall into one of the following groups:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Fadi G Hage, MD | University of Alabama at Birmingham | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| UAB | Birmingham | Alabama | 35294 | United States |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 19332209 | Background | Hage FG, Heo J, Franks B, Belardinelli L, Blackburn B, Wang W, Iskandrian AE. Differences in heart rate response to adenosine and regadenoson in patients with and without diabetes mellitus. Am Heart J. 2009 Apr;157(4):771-6. doi: 10.1016/j.ahj.2009.01.011. Epub 2009 Mar 6. | |
| 20211328 | Background | Hage FG, Perry G, Heo J, Iskandrian AE. Blunting of the heart rate response to adenosine and regadenoson in relation to hyperglycemia and the metabolic syndrome. Am J Cardiol. 2010 Mar 15;105(6):839-43. doi: 10.1016/j.amjcard.2009.11.042. |
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| ID | Title | Description |
|---|---|---|
| FG000 | Regadenoson | Prior to the implantation of a clinically indicated ICD, the heart rate response to regadenoson will be assessed. Regadenoson will be administered intravenously as a fixed intravenous bolus dose of 400 μg followed by a 5 mL saline flush. Medications (including beta-blockers) will be withheld on the morning of the test. The heart rate and blood pressure will be measured at baseline and every minute after regadenoson bolus for at least 5 minutes and until the heart rate and blood pressure are clearly returning towards baseline. -------------------------------------------------------------------------------- regadenoson: Prior to the implantation of a clinically indicated ICD, the heart rate response to regadenoson will be assessed. Regadenoson will be administered intravenously as a fixed intravenous bolus dose of 400 μg followed by a 5 mL saline flush. Medications (including beta-blockers) will be withheld on the morning of the test. The heart rate and blood pressure will be measured at baseline and every minute after regadenoson bolus for at least 5 minutes and until the heart rate and blood pressure are clearly returning towards baseline. |
| Title | Milestones | Reasons Not Completed | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Overall Study |
|
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| ID | Title | Description |
|---|---|---|
| BG000 | Regadenoson | Prior to the implantation of a clinically indicated ICD, the heart rate response to regadenoson will be assessed. Regadenoson will be administered intravenously as a fixed intravenous bolus dose of 400 μg followed by a 5 mL saline flush. Medications (including beta-blockers) will be withheld on the morning of the test. The heart rate and blood pressure will be measured at baseline and every minute after regadenoson bolus for at least 5 minutes and until the heart rate and blood pressure are clearly returning towards baseline. -------------------------------------------------------------------------------- regadenoson: Prior to the implantation of a clinically indicated ICD, the heart rate response to regadenoson will be assessed. Regadenoson will be administered intravenously as a fixed intravenous bolus dose of 400 μg followed by a 5 mL saline flush. Medications (including beta-blockers) will be withheld on the morning of the test. The heart rate and blood pressure will be measured at baseline and every minute after regadenoson bolus for at least 5 minutes and until the heart rate and blood pressure are clearly returning towards baseline. |
| Units | Counts |
|---|---|
| Participants |
|
| Title | Description | Population Description | Parameter Type | Dispersion Type | Unit of Measure | Calculate Percentage | Denominator Units Selected | Denominators | Classes |
|---|---|---|---|---|---|---|---|---|---|
| Age, Continuous | Age: mean and standard deviation |
| Type | Title | Description | Population Description | Reporting Status | Anticipated Posting Date | Parameter Type | Dispersion Type | Unit of Measure | Calculate Percentage | Time Frame | Units Analyzed | Denominator Units Selected | Arm/Group Information | Denominators | Classes | Analyses | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Primary | Sudden Cardiac Death | Sudden cardiac death will be defined as death within 1 hour of symptom onset, or an unobserved death in which the patient was seen and known to be doing well within 24 hours of death. Survivors of aborted sudden cardiac death, resuscitated cardiac arrest, and those receiving appropriate ICD therapy will also be considered to have experienced sudden cardiac death and will be included in the primary end point. | Posted | Count of Participants | Participants | Until end of follow-up, median follow-up 40 months |
|
Adverse Events were monitored for 1 day and deaths were monitored until end of follow-up, median of 40 months
Adverse events were monitored for 1 day while outcomes were monitored until end of follow-up.
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| ID | Title | Description | Deaths (Affected) | Deaths (At Risk) | Serious Events (Affected) | Serious Events (At Risk) | Other Events (Affected) | Other Events (At Risk) |
|---|---|---|---|---|---|---|---|---|
| EG000 | Regadenoson | Prior to the implantation of a clinically indicated ICD, the heart rate response to regadenoson will be assessed. Regadenoson will be administered intravenously as a fixed intravenous bolus dose of 400 μg followed by a 5 mL saline flush. Medications (including beta-blockers) will be withheld on the morning of the test. The heart rate and blood pressure will be measured at baseline and every minute after regadenoson bolus for at least 5 minutes and until the heart rate and blood pressure are clearly returning towards baseline. -------------------------------------------------------------------------------- regadenoson: Prior to the implantation of a clinically indicated ICD, the heart rate response to regadenoson will be assessed. Regadenoson will be administered intravenously as a fixed intravenous bolus dose of 400 μg followed by a 5 mL saline flush. Medications (including beta-blockers) will be withheld on the morning of the test. The heart rate and blood pressure will be measured at baseline and every minute after regadenoson bolus for at least 5 minutes and until the heart rate and blood pressure are clearly returning towards baseline. |
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| Term | Organ System | Source Vocabulary | Assessment Type | Notes | Statistical Information |
|---|---|---|---|---|---|
| symptomatic hypotension | Vascular disorders | Systematic Assessment |
The lower than planned sample size decreased the power of the study. To partially compensate, we allowed for longer than planned follow-up.
| Title | Organization | Phone | Extension | |
|---|---|---|---|---|
| Fadi Hage | University of Alabama at Birmingham | 2059757123 | fadihage@uab.edu |
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| Type | Includes Protocol | Includes SAP | Includes ICF | Document Label | Document Date | Document Uploaded Date | Document File Name |
|---|---|---|---|---|---|---|---|
| Prot_SAP | Yes | Yes | No | Study Protocol and Statistical Analysis Plan | Jan 14, 2021 | Oct 4, 2021 | Prot_SAP_000.pdf |
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| ID | Term |
|---|---|
| D018487 | Ventricular Dysfunction, Left |
| D016757 | Death, Sudden, Cardiac |
| ID | Term |
|---|---|
| D018754 | Ventricular Dysfunction |
| D006331 | Heart Diseases |
| D002318 | Cardiovascular Diseases |
| D006323 | Heart Arrest |
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| ID | Term |
|---|---|
| C430916 | regadenoson |
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|
|
| Until end of follow-up, median follow-up 40 months |
| Inappropriate ICD Therapy | unnecessary antitachycardia pacing or shock delivered by the ICD for a rhythm that is not a true ventricular fibrillation or ventricular tachycardia | Until end of follow-up, median follow-up 40 months |
| All-cause Death or First Appropriate ICD Therapy | death or antitachycardia pacing therapy or shock for tachyarrhythmia determined by evaluation of the clinical information and by device diagnostics to be either ventricular fibrillation or ventricular tachycardia | Until end of follow-up, median follow-up 40 months |
| Sudden Cardiac Death or Appropriate ICD Therapy | Sudden cardiac death or antitachycardia pacing therapy or shock for tachyarrhythmia determined by evaluation of the clinical information and by device diagnostics to be either ventricular fibrillation or ventricular tachycardia | Until end of follow-up, median follow-up 40 months |
| 21835298 | Background | Hage FG, Dean P, Bhatia V, Iqbal F, Heo J, Iskandrian AE. The prognostic value of the heart rate response to adenosine in relation to diabetes mellitus and chronic kidney disease. Am Heart J. 2011 Aug;162(2):356-62. doi: 10.1016/j.ahj.2011.05.014. Epub 2011 Jul 18. |
| 21785922 | Background | Hage FG, Dean P, Iqbal F, Heo J, Iskandrian AE. A blunted heart rate response to regadenoson is an independent prognostic indicator in patients undergoing myocardial perfusion imaging. J Nucl Cardiol. 2011 Dec;18(6):1086-94. doi: 10.1007/s12350-011-9429-1. Epub 2011 Jul 22. |
| 23111139 | Background | Iqbal FM, Al Jaroudi W, Sanam K, Sweeney A, Heo J, Iskandrian AE, Hage FG. Reclassification of cardiovascular risk in patients with normal myocardial perfusion imaging using heart rate response to vasodilator stress. Am J Cardiol. 2013 Jan 15;111(2):190-5. doi: 10.1016/j.amjcard.2012.09.013. Epub 2012 Oct 27. |
| Mean |
| Standard Deviation |
| years |
|
| Sex: Female, Male | Count of Participants | Participants |
|
| Race/Ethnicity, Customized | Count of Participants | Participants |
|
| Region of Enrollment | Number | participants |
|
|
|
| Secondary | All-cause Death | death from any cause | Posted | Count of Participants | Participants | Until end of follow-up, median follow-up 40 months |
|
|
|
| Secondary | First Appropriate ICD Therapy | antitachycardia pacing therapy or shock for tachyarrhythmia determined by evaluation of the clinical information and by device diagnostics to be either ventricular fibrillation or ventricular tachycardia | Posted | Count of Participants | Participants | Until end of follow-up, median follow-up 40 months |
|
|
|
| Secondary | Inappropriate ICD Therapy | unnecessary antitachycardia pacing or shock delivered by the ICD for a rhythm that is not a true ventricular fibrillation or ventricular tachycardia | Posted | Count of Participants | Participants | Until end of follow-up, median follow-up 40 months |
|
|
|
| Secondary | All-cause Death or First Appropriate ICD Therapy | death or antitachycardia pacing therapy or shock for tachyarrhythmia determined by evaluation of the clinical information and by device diagnostics to be either ventricular fibrillation or ventricular tachycardia | Posted | Count of Participants | Participants | Until end of follow-up, median follow-up 40 months |
|
|
|
| Secondary | Sudden Cardiac Death or Appropriate ICD Therapy | Sudden cardiac death or antitachycardia pacing therapy or shock for tachyarrhythmia determined by evaluation of the clinical information and by device diagnostics to be either ventricular fibrillation or ventricular tachycardia | Posted | Count of Participants | Participants | Until end of follow-up, median follow-up 40 months |
|
|
|
| 16 |
| 90 |
| 0 |
| 90 |
| 24 |
| 90 |
| bronchospasm | Respiratory, thoracic and mediastinal disorders | Systematic Assessment |
|
| flushing | Skin and subcutaneous tissue disorders | Systematic Assessment |
|
| chest pain | Cardiac disorders | Systematic Assessment |
|
| shortness of breath | Respiratory, thoracic and mediastinal disorders | Systematic Assessment |
|
| Gastrointestinal symptoms | Gastrointestinal disorders | Systematic Assessment |
|
| Ventricular tachycardia | Cardiac disorders | Systematic Assessment |
|
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| D003645 |
| Death, Sudden |
| D003643 | Death |
| D010335 | Pathologic Processes |
| D013568 | Pathological Conditions, Signs and Symptoms |