# Evaluation of Precision and Accuracy of INR Measurements in a Point of Care Device (OPTIMAL)

> **NCT03682419** · NA · COMPLETED · sponsor: **LumiraDx UK Limited** · enrollment: 420 (actual)

## Conditions studied

- Deep Vein Thrombosis
- Atrial Fibrillation
- Post-Myocardial Infarction Syndrome
- Pulmonary Embolism
- Artificial Heart Device User
- Thrombophilia
- Antiphospholipid Syndrome

## Interventions

- **PROCEDURE:** VKA Patients
- **PROCEDURE:** Non-VKA Patients

## Key facts

- **NCT ID:** NCT03682419
- **Lead sponsor:** LumiraDx UK Limited
- **Sponsor class:** INDUSTRY
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2018-09-17
- **Primary completion:** 2018-11-23
- **Final completion:** 2018-11-23
- **Target enrollment:** 420 (ACTUAL)
- **Last updated:** 2019-02-27


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03682419

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03682419, "Evaluation of Precision and Accuracy of INR Measurements in a Point of Care Device (OPTIMAL)". Retrieved via AI Analytics 2026-06-03 from https://api.ai-analytics.org/clinical/NCT03682419. Licensed CC0.

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