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| Study Type: | Interventional |
|---|---|
| Study Design: | Randomized, Double Blind (Subject, Investigator), Active Control, Parallel Assignment |
| Condition: |
Heart Failure |
| Intervention: |
Device: Cardiac Resynchronization Therapy (CRT) Device or Implantable Cardioverter Defibrillator (ICD) with CRT |
Baseline Characteristics
| Description | |
|---|---|
| CRT OFF | Cardiac Resynchronization Therapy (CRT) turned OFF in conjunction with optimal medical therapy |
| CRT ON | Cardiac Resynchronization Therapy (CRT) turned ON in conjunction with optimal medical therapy |
| CRT OFF | CRT ON | Total | |
|---|---|---|---|
|
Number of Participants [units: participants] |
191 | 419 | 610 |
|
Age [units: participants] |
|||
| <=18 years | 0 | 0 | 0 |
| Between 18 and 65 years | 108 | 229 | 337 |
| >=65 years | 83 | 190 | 273 |
|
Age [units: years] Mean ± Standard Deviation |
61.8 ± 11.6 | 62.9 ± 10.6 | 62.5 ± 11.0 |
|
Gender [units: participants] |
|||
| Female | 39 | 92 | 131 |
| Male | 152 | 327 | 479 |
|
Region of Enrollment [units: participants] |
|||
| United States | 108 | 235 | 343 |
| Spain | 9 | 18 | 27 |
| Ireland | 1 | 4 | 5 |
| Austria | 2 | 4 | 6 |
| United Kingdom | 6 | 9 | 15 |
| Italy | 5 | 12 | 17 |
| France | 15 | 34 | 49 |
| Czech Republic | 0 | 1 | 1 |
| Hungary | 6 | 13 | 19 |
| Canada | 1 | 4 | 5 |
| Belgium | 1 | 3 | 4 |
| Denmark | 19 | 46 | 65 |
| Germany | 6 | 11 | 17 |
| Norway | 3 | 4 | 7 |
| Sweden | 7 | 17 | 24 |
| Netherlands | 2 | 4 | 6 |
Outcome Measures
More Information
| Principal Investigators are NOT employed by the organization sponsoring the study. | ||||||
| There IS an agreement between Principal Investigators and the Sponsor (or its agents) that restricts the PI's rights to discuss or publish trial results after the trial is completed. | ||||||
The agreement is:
|
| Limitations of the study, such as early termination leading to small numbers of participants analyzed and technical problems with measurement leading to unreliable or uninterpretable data |
|---|
| No text entered. |
| Responsible Party: | Medtronic CRDM ( CRDM Core Clinical ) |
| Study ID Numbers: | 233 |
| Study First Received: | December 21, 2005 |
| Results First Received: | December 24, 2008 |
| Last Updated: | March 26, 2009 |
| ClinicalTrials.gov Identifier: | NCT00271154 History of Changes |
| Health Authority: | United States: Food and Drug Administration |