- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00822146
Cardiac Resynchronization Therapy (CRT) Efficacy Study
Study Overview
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
-
Berlin, Germany, 13353
- Deutsches Herzzentrum Berlin
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Patient indicated for InSync Sentry CRT device implant
- The patient must be willing and capable of following the study protocol
- EF ≤ 40%
- Systolic pulmonary artery pressure derived by echocardiography > 40
- Patients with their device functioning in a bi-ventricular mode, with defibrillation detection and therapy enabled
- Marked released transvenous RVCoil lead
Exclusion Criteria:
- Patients with chronic AF
- Patients with unipolar atrial or unipolar right ventricular leads
- Patients needing a Lower Rate faster than 110 beats per minute
- Patients with an implanted Medtronic Sentry in whom missing one day's fluid-measurement value is undesirable
- Patients who cannot tolerate turning off Rate Response during the study
- Patients with acute ischemia
- Patients whose InSync Sentry battery is at ERI or EOL status
- Patients with "RAMware" downloaded from other studies
- Patients with medical conditions that would limit study participation
- Patients who are pregnant
- Patients enrolled in another study, which could influence the result of this study
- Patients on the heart transplantation list or patients with transplanted hearts
- Patients is not available for follow-up care
- Patients has not signed a consent form
- Patients with renal failure needing dialysis
- Patients whose compliance can expected to be poor
- Patients with a mechanical tricuspid valve
- Life expectation < 12 months
- Severe PAOD (peripheral arterial occlusive disease)
- Underage patients, pregnant or breast feeding women and female patients not using adequate contraception are excluded from participating in the study
Since right after implantation study procedure will follow, patient has to sign the informed consent before the implantation. However the following criteria are device based and can therefore not checked at time of sign off.
Therefore lead performance will be checked right after the implant and before the study specific procedure. If exclusion criteria are fulfilled patient exit the study and no study specific procedure will be done.
Patients with non-intact or unstable leads, as indicated on the "Quick Look" screen of the Medtronic Model 2090 programmer by the presence of lead warnings such as the following:
- LV pacing lead impedance is > 2500 ohms
- LV pacing lead impedance is < 200 ohms
- A. pacing lead impedance is > 2500 ohms
- A. pacing lead impedance is < 200 ohms
- SVC defib lead impedance is > 200 ohms
- SVC defib lead impedance is < 20 ohms
- RV pacing lead impedance is > 2500 ohms
- RV pacing lead impedance is < 200 ohms
- Patients with atrial pacing thresholds lower than 1.0 volts at .03 ms
- Patients with right ventricular pacing thresholds lower than 1.0 volts at .03 ms
- Patients with left ventricular pacing thresholds lower than 1.0 volts at .03 ms
- Patients in whom a Lower Rate cannot be programmed to achieve consistent atrial pacing for the duration of download software installed
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Other
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: 1
|
classified
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
classified
Time Frame: 12 months
|
12 months
|
Collaborators and Investigators
Sponsor
Collaborators
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- CEN_G_CA_11
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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