Stroke Clinical Trial - Combined Use of BIOTRONIK Home Monitoring &

Status Terminated

Clinical Trial Summary

The IMPACT Study will investigate the potential clinical benefit of the combined use of BIOTRONIK Home Monitoring (HM) technology and a predefined anticoagulation plan compared to conventional device evaluation and physician-directed anticoagulation in patients with implanted dual-chamber defibrillators or cardiac resynchronization therapy devices.

Clinical Trial Description

Atrial fibrillation (AF) and atrial flutter (AFL) are common cardiac arrhythmias associated with an increased incidence of stroke in patients with additional risk factors. Oral Anticoagulation (OAC) reduces stroke risk, but because these arrhythmias are frequently intermittent and asymptomatic, start of OAC therapy is often delayed until electrocardiographic documentation is obtained.

Technological advances in implanted dual-chamber cardioverter defibrillator (ICD) or cardiac resynchronization therapy defibrillator (CRT-D) devices allow early detection and real time verification of AF/AFL with intracardiac electrograms (IEGM) automatically transmitted to the clinicians. Such remote diagnostic capability might be particularly relevant in patients with asymptomatic AF by allowing timely treatment. Compared to conventional periodic, (e.g., quarterly) office device evaluation, daily remote monitoring may prove superior for diagnosis of AF and prophylactic treatment of thromboembolism.

The start, stop and restart of OAC based on a predefined atrial rhythm-guided strategy in conjunction with a standard risk-stratification scheme could lead to better clinical outcomes compared with conventional clinical care. The study is designed to demonstrate a risk reduction of both thromboembolism proximate to episodes of documented AF/AFL and bleeding potentiated by chronic OAC in the absence of AF. Verification of this premise would impact the clinical practice, providing evidence to physicians for the use of HM to guide OAC in patients with AF/AFL. The results of this study should demonstrate the clinical value of wireless remote surveillance of the cardiac rhythm and may define the critical threshold of AF/AFL burden warranting OAC or antiarrhythmic drug therapy in patients at risk of stroke ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT00559988
Study type	Interventional
Source	Biotronik, Inc.
Contact
Status	Terminated
Phase	Phase 4
Start date	February 2008
Completion date	June 2013

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Combined Use of BIOTRONIK Home Monitoring and Predefined Anticoagulation to Reduce Stroke Risk — IMPACT

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms