# Factors Associated to the Instability of the INR (International Normalized Ratio ) in the Prevention of Thromboembolism AVK (Anti Vitamin K) in Atrial Fibrillation in the Elderly: Instead of Comorbidities

> **NCT02841475** · — · COMPLETED · sponsor: **Nantes University Hospital** · enrollment: 2164 (actual)

## Conditions studied

- Atrial Fibrillation

## Interventions

- **OTHER:** Charlson comorbidity index

## Key facts

- **NCT ID:** NCT02841475
- **Lead sponsor:** Nantes University Hospital
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2013-09
- **Primary completion:** 2013-12
- **Final completion:** 2013-12
- **Target enrollment:** 2164 (ACTUAL)
- **Last updated:** 2021-09-10


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT02841475

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT02841475, "Factors Associated to the Instability of the INR (International Normalized Ratio ) in the Prevention of Thromboembolism AVK (Anti Vitamin K) in Atrial Fibrillation in the Elderly: Instead of Comorbidities". Retrieved via AI Analytics 2026-06-09 from https://api.ai-analytics.org/clinical/NCT02841475. Licensed CC0.

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