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Automated MEdical Record Driven Implantable CArdioverter-defibrillator Heart Failure Trial (AMERICA-HF) (AMERICA-HF)

This study has been terminated.
(We observed a very high referral rate for patients with HF in the Duke Health System, eliminating the need for an automated referral process.)
Sponsor:
ClinicalTrials.gov Identifier:
NCT01807130
First Posted: March 8, 2013
Last Update Posted: December 10, 2014
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.
Information provided by (Responsible Party):
Duke University
  Purpose

Purpose and Objective: Heart failure therapies including beta-blockers, ACE-inhibitors, aldosterone antagonists, implantable cardioverter-defibrillator (ICD) and cardiac resynchronization therapy (CRT) devices have proven beneficial but are underused in eligible patients. The investigators seek to determine if automating referral to cardiologists and electrophysiologists through an intelligent electronic medical record system can improve adherence to American College of Cardiology (ACC)/ American Heart Association (AHA) heart failure guideline recommended therapies.

Study activities and population group: The AMERICA-HF trial will be a randomized, single-center, single blinded study comparing standard-practice provider initiated cardiovascular specialty referral to experimental automated medical record driven cardiovascular specialty referral. An investigational program will automatically screen all finalized electronic reports from clinically indicated transthoracic echocardiogram studies performed in the Duke University Echo Lab system and create an automated query to obtain HF ICD-9 codes. Eligible patients will be randomly assigned to participate in a registry (n=125) or automated electronic medical record (EMR) based subspecialty care intervention arm (n=125).

Data analysis: The primary endpoint is rate of adherence (%) to ACC/AHA HF guideline recommended therapies at 3, 6, and 12 month follow-up among patients randomized to the registry compared to the intervention. Differences in characteristics (including use of guideline recommended therapies) will be tested using Pearson Chi-square tests for categorical variables and Wilcoxon two-sample tests for continuous variables. Time to event analysis will be performed for the secondary endpoints of hospitalization or death.


Condition Intervention
Heart Failure Other: Automated HF/EP Referral Other: Placebo (Registry Arm)

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single (Participant)
Primary Purpose: Treatment
Official Title: Automated MEdical Record Driven Implantable CArdioverter-defibrillator Heart Failure Trial (AMERICA-HF)

Resource links provided by NLM:


Further study details as provided by Duke University:

Primary Outcome Measures:
  • Rate of adherence (%) to ACC/AHA HF guideline recommended HF therapies among patients randomized to the registry compared to the intervention [ Time Frame: 12 month follow-up ]

Secondary Outcome Measures:
  • Adherence to ACC/AHA guideline recommended therapies by sex and race compared to standard referral processes among patients with ejection fraction (EF) ≤ 35% and symptomatic HF. [ Time Frame: 12 months ]
  • Repeated Measures Analysis of Adherence to ACC/AHA HF Guidelines [ Time Frame: 3, 6, 12 months ]
    To determine the time-frame over which the intervention has a treatment effect, repeated measures analysis will be performed at 3 months, 6 months, and 12 months after the intervention is made. The goal of this analysis to to determine how quickly adherence is achieved with the intervention and whether adherence is maintained long-term.


Enrollment: 77
Study Start Date: September 2013
Study Completion Date: September 2014
Primary Completion Date: September 2014 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Placebo Comparator: Registry
Patients randomized to the registry arm will be followed per usual standard of care by their primary providers. Those providers may refer to subspecialty HF or electrophysiology care as they see fit.
Other: Placebo (Registry Arm)
Patients assigned to the registry will receive referral to specialists in HF or EP as deemed necessary by the patients physicians.
Experimental: Intervention
Patients in the intervention arm without compelling contraindications to HF therapies will be referred automatically to specialists in HF or electrophysiology with recommendations to consider those therapies that are not in compliance with guidelines.
Other: Automated HF/EP Referral
Patients in the intervention arm without compelling contraindications to HF therapies will be referred automatically to specialists in HF or electrophysiology (EP) with recommendations to consider those therapies that are not in compliance with guidelines.

  Eligibility

Information from the National Library of Medicine

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

Inclusion Criteria:

  • Left Ventricular Ejection Fraction ≤ 35% on transthoracic echocardiogram
  • One of the following ICD-9 HF diagnostic codes 398.91, 428.0, 428.1, 428.2x, 428.3x, 428.4x, 428.9

Exclusion Criteria:

  • Pregnancy
  • Inability to speak English
  • Inability to provide verbal consent
  Contacts and Locations
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 ClinicalTrials.gov identifier (NCT number): NCT01807130


Locations
United States, North Carolina
Duke University Health System
Durham, North Carolina, United States, 27710
Sponsors and Collaborators
Duke University
Investigators
Principal Investigator: Brett D Atwater, MD Duke University
Principal Investigator: Jason I Koontz, MD/PhD Duke University
  More Information

Responsible Party: Duke University
ClinicalTrials.gov Identifier: NCT01807130     History of Changes
Other Study ID Numbers: Pro00042120
First Submitted: March 5, 2013
First Posted: March 8, 2013
Last Update Posted: December 10, 2014
Last Verified: August 2014

Keywords provided by Duke University:
Heart Failure
Medical Therapy
ICD
CRT

Additional relevant MeSH terms:
Heart Failure
Heart Diseases
Cardiovascular Diseases