Completed OBSERVATIONAL NCT00669682

T-wave Alternans and Intrathoracic Impedance Measurements

Sponsor: Columbia University

Conditions Arrhythmias Congestive Heart Failure

Updated 8 times since 2017 Last updated: Apr 11, 2013 Started: Aug 31, 2008 Primary completion: Apr 30, 2012 Completion: Apr 30, 2012

This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

A observational or N/A phase clinical study on Arrhythmias and Congestive Heart Failure, this trial is completed. The trial is conducted by Columbia University and has accumulated 8 data snapshots since 2008. Cardiovascular trials of this type often inform treatment guidelines for long-term patient management.

Status Flow

Change History

8 versions recorded

Sep 2024 — Present [monthly]

Completed
Jul 2024 — Sep 2024 [monthly]

Completed
Jan 2023 — Jul 2024 [monthly]

Completed
Dec 2022 — Jan 2023 [monthly]

Completed
Jan 2021 — Dec 2022 [monthly]

Completed

▶ Show 3 earlier versions

Jun 2018 — Jan 2021 [monthly]

Completed
Apr 2018 — Jun 2018 [monthly]

Completed

Phase: NA → None
Jan 2017 — Apr 2018 [monthly]

Completed NA

First recorded

Aug 2008

Trial started

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

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:

Columbia University
Medtronic

Data source: Columbia University

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

Study Locations

• New York, United States