# Sensitivity of the InSync Sentry OptiVol Feature for the Prediction of Heart Failure

> **NCT00400985** · NA · COMPLETED · sponsor: **Medtronic Cardiac Rhythm and Heart Failure** · enrollment: 501 (actual)

## Conditions studied

- Heart Failure, Congestive

## Interventions

- **DEVICE:** Implantable device: monitoring of intrathoracic impedance using the OptiVol diagnostic tool.

## Key facts

- **NCT ID:** NCT00400985
- **Lead sponsor:** Medtronic Cardiac Rhythm and Heart Failure
- **Sponsor class:** INDUSTRY
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2005-01
- **Primary completion:** 2009-08
- **Final completion:** 2009-08
- **Target enrollment:** 501 (ACTUAL)
- **Last updated:** 2025-07-02

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00400985

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00400985, "Sensitivity of the InSync Sentry OptiVol Feature for the Prediction of Heart Failure". Retrieved via AI Analytics 2026-06-25 from https://api.ai-analytics.org/clinical/NCT00400985. Licensed CC0.

---

*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*