# Understanding "Heparin Resistance" in Cardiac Surgery

> **NCT01598883** · PHASE1 · COMPLETED · sponsor: **Massachusetts General Hospital** · enrollment: 504 (actual)

## Conditions studied

- Cardiopulmonary Bypass
- Altered Heparin Response

## Interventions

- **DRUG:** Heparin
- **DRUG:** ATryn

## Key facts

- **NCT ID:** NCT01598883
- **Lead sponsor:** Massachusetts General Hospital
- **Sponsor class:** OTHER
- **Phase:** PHASE1
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2012-06
- **Primary completion:** 2014-12
- **Final completion:** 2014-12
- **Target enrollment:** 504 (ACTUAL)
- **Last updated:** 2016-12-14

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01598883

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01598883, "Understanding "Heparin Resistance" in Cardiac Surgery". Retrieved via AI Analytics 2026-05-28 from https://api.ai-analytics.org/clinical/NCT01598883. Licensed CC0.

---

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