# ECG Optimization of CRT: Evaluation of Mid-term Response

> **NCT01439529** · PHASE3 · COMPLETED · sponsor: **Hospital Clinic of Barcelona** · enrollment: 180 (actual)

## Conditions studied

- Heart Failure

## Interventions

- **OTHER:** Device programming: nominal
- **OTHER:** Programming optimization by QRS

## Key facts

- **NCT ID:** NCT01439529
- **Lead sponsor:** Hospital Clinic of Barcelona
- **Sponsor class:** OTHER
- **Phase:** PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2009-04
- **Primary completion:** 2016-09
- **Final completion:** 2017-09
- **Target enrollment:** 180 (ACTUAL)
- **Last updated:** 2018-08-02


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01439529

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01439529, "ECG Optimization of CRT: Evaluation of Mid-term Response". Retrieved via AI Analytics 2026-06-01 from https://api.ai-analytics.org/clinical/NCT01439529. Licensed CC0.

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