deltatrials
Terminated PHASE4 INTERVENTIONAL 2-arm NCT00170313

CORE: Study to Evaluate the Conducted AF-Response-Algorithm in Patients Suffering From Heart Failure and Atrial Fibrillation

Conducted AF-Response Study (Study to Evaluate the Conducted AF-Response-Algorithm in Patients Suffering From Heart Failure and Atrial Fibrillation Treated With InSync III Marquis)

Sponsor: Medtronic

Updated 9 times since 2017 Last updated: Jun 30, 2025 Started: Dec 31, 2003 Completion: Jan 31, 2007
This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

Terminated

Ventricular rate during AF in CRT-patients much lower than expected

This PHASE4 trial investigates Atrial Fibrillation and Heart Failure and is currently terminated or withdrawn. Medtronic leads this study, which shows 9 recorded versions since 2003 — indicating limited longitudinal coverage. Heart and vascular conditions benefit from the kind of long-term tracking this trial provides.

Status Flow

~Jan 2017 – ~Feb 2017 · 31 days · monthly snapshotTerminated~Feb 2017 – ~Jun 2018 · 16 months · monthly snapshotTerminated~Jun 2018 – ~Jan 2021 · 31 months · monthly snapshotTerminated~Jan 2021 – ~Jul 2024 · 42 months · monthly snapshotTerminated~Jul 2024 – ~Sep 2024 · 2 months · monthly snapshotTerminated~Sep 2024 – ~Jul 2025 · 10 months · monthly snapshotTerminated~Jul 2025 – ~Aug 2025 · 31 days · monthly snapshotTerminated~Aug 2025 – ~Sep 2025 · 31 days · monthly snapshotTerminated~Sep 2025 – present · 11 months · monthly snapshotTerminated

Change History

9 versions recorded
  1. Sep 2025 — Present [monthly]

    Terminated PHASE4

  2. Aug 2025 — Sep 2025 [monthly]

    Terminated PHASE4

  3. Jul 2025 — Aug 2025 [monthly]

    Terminated PHASE4

  4. Sep 2024 — Jul 2025 [monthly]

    Terminated PHASE4

  5. Jul 2024 — Sep 2024 [monthly]

    Terminated PHASE4

Show 4 earlier versions
  1. Jan 2021 — Jul 2024 [monthly]

    Terminated PHASE4

  2. Jun 2018 — Jan 2021 [monthly]

    Terminated PHASE4

  3. Feb 2017 — Jun 2018 [monthly]

    Terminated PHASE4

  4. Jan 2017 — Feb 2017 [monthly]

    Terminated PHASE4

    First recorded

Dec 2003

Trial started

Per CT.gov start date — pre-dates our first snapshot

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:
  • Medtronic
  • Medtronic Cardiac Rhythm and Heart Failure
Data source: Medtronic Cardiac Rhythm and Heart Failure

For direct contact, visit the study record on ClinicalTrials.gov .