# Standard vs High Dose of Unfractionated Heparin in the Incidence of Radial Artery Occlusion (DEFINITION) Trial.

> **NCT04561648** · NA · UNKNOWN · sponsor: **Instituto Nacional de Cardiologia Ignacio Chavez** · enrollment: 1988 (estimated)

## Conditions studied

- Radial Artery Occlusion

## Interventions

- **DRUG:** Unfractionated Heparin

## Key facts

- **NCT ID:** NCT04561648
- **Lead sponsor:** Instituto Nacional de Cardiologia Ignacio Chavez
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** UNKNOWN
- **Start date:** 2020-08-01
- **Primary completion:** 2025-12-01
- **Final completion:** 2026-03-01
- **Target enrollment:** 1988 (ESTIMATED)
- **Last updated:** 2024-02-20


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04561648

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04561648, "Standard vs High Dose of Unfractionated Heparin in the Incidence of Radial Artery Occlusion (DEFINITION) Trial.". Retrieved via AI Analytics 2026-06-30 from https://api.ai-analytics.org/clinical/NCT04561648. Licensed CC0.

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