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DF4 Master Study (Safety and Efficacy Study)

This study has been completed.
Information provided by (Responsible Party):
Biotronik SE & Co. KG Identifier:
First received: February 12, 2013
Last updated: April 18, 2016
Last verified: April 2016
The purpose of the study is to proof the safety and efficacy of the new ICD sytem (Iforia/Ilesto). The devices are available with DF-1 and DF4 connection. A special focus is set on the ICD system with DF4 connection.

Condition Intervention
Ventricular Tachycardia Ventricular Fibrillation Sudden Cardiac Death Heart Failure Device: Iforia/Ilesto ICD/CRT-D, Linox smart DF4 lead/ Protego

Study Type: Observational
Study Design: Observational Model: Case Control
Time Perspective: Prospective
Official Title: Master Study of the BIOTRONIK DF4 System

Resource links provided by NLM:

Further study details as provided by Biotronik SE & Co. KG:

Primary Outcome Measures:
  • Serious adverse device effect (SADE) rate related to the ICD with DF4 connection [ Time Frame: until 3 month follow-up ]
  • SADE rate related to the Linox smart DF4 lead (ICD shock lead) [ Time Frame: until 3 month follow-up ]
  • Shift rate of the painless shock impedance measurement [ Time Frame: between 3 and 6 month follow-up ]
  • Pacing threshold comparison between Linox smart DF-1 and Linox smart DF4 lead [ Time Frame: 3 month follow-up ]

Secondary Outcome Measures:
  • Comparison of automatic atrial pacing threshold test vs. manual measurement [ Time Frame: 3 month follow-up ]

Enrollment: 240
Study Start Date: February 2013
Study Completion Date: April 2016
Primary Completion Date: May 2015 (Final data collection date for primary outcome measure)
Groups/Cohorts Assigned Interventions
ICD system with DF4 connection
Iforia/Ilesto ICD with DF4 connection and Linox smart DF4 lead/ Protego
Device: Iforia/Ilesto ICD/CRT-D, Linox smart DF4 lead/ Protego
ICD system with DF-1 connection
Ilesto/Iforia ICD with DF-1 connection
Device: Iforia/Ilesto ICD/CRT-D, Linox smart DF4 lead/ Protego


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Patients with standard ICD/CRT-D indication who are referred to the hospital.

Inclusion Criteria:

  • Patient has provided written informed consent.
  • Patient has standard ICD/CRT-D indication.
  • Patient accepts Home Monitoring concept.
  • Patient is able to attend the planned hospital follow-up visits.
  • Patient has legal capacity and ability to consent.

Exclusion Criteria:

  • Patient has a standard contra-indication for ICD/CRT-D therapy.
  • Age < 18 years
  • Patient is pregnant or breastfeeding.
  • Patient is expected to receive ventricular assist device or heart transplantation within the next 12 months.
  • Life expectancy of less than 12 months.
  • Participating in any other clinical study of an investigational cardiac drug or device.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01790841

Universitaetsmedizin Greifswald
Greifswald, Germany
Sponsors and Collaborators
Biotronik SE & Co. KG
  More Information

Responsible Party: Biotronik SE & Co. KG Identifier: NCT01790841     History of Changes
Other Study ID Numbers: 54
Study First Received: February 12, 2013
Last Updated: April 18, 2016

Additional relevant MeSH terms:
Heart Failure
Tachycardia, Ventricular
Death, Sudden, Cardiac
Ventricular Fibrillation
Heart Diseases
Cardiovascular Diseases
Arrhythmias, Cardiac
Pathologic Processes
Heart Arrest
Death, Sudden processed this record on August 17, 2017