---
title: Biochemical Alterations of Stored Erythrocyte Membranes
nct_id: NCT02639780
overall_status: COMPLETED
sponsor: Medical University of Vienna
study_type: OBSERVATIONAL
primary_condition: Coagulation
countries: Austria
canonical_url: "https://parkinsonspathways.com/agent/trials/NCT02639780.md"
clinicaltrials_gov: "https://clinicaltrials.gov/study/NCT02639780"
ct_last_update_post_date: 2022-01-04
last_seen_at: "2026-05-12T06:12:39.385Z"
source: ClinicalTrials.gov (mirrored, no enrichment)
---
# Biochemical Alterations of Stored Erythrocyte Membranes

**NCT ID:** [NCT02639780](https://clinicaltrials.gov/study/NCT02639780)

## Key Facts

- **Status:** COMPLETED
- **Study Type:** OBSERVATIONAL
- **Target Enrollment:** 36
- **Lead Sponsor:** Medical University of Vienna
- **Collaborators:** Medical Scientific Fund of the Mayor of Vienna, European Society of Anaesthesiology
- **Conditions:** Coagulation
- **Start Date:** 2015-12
- **Completion Date:** 2021-12
- **CT.gov Last Update:** 2022-01-04

## Brief Summary

The investigators will define procoagulant properties of packed red blood cells and investigate whether packed red blood cells from certain donor populations are prone to induce procoagulant states.

## Eligibility

- **Minimum age:** 18 Years
- **Maximum age:** 60 Years
- **Sex:** ALL
- **Healthy Volunteers:** Yes

```
Inclusion Criteria:

* group 1: healthy female volunteers 18-35 y.o.
* group 2: healthy male volunteers 18-35 y.o.
* group 3: healthy female volunteers 36-60 y.o.
* group 4: healthy male volunteers 36-60 y.o.
* group 5: female volunteers 36-60 y.o., BMI 26-45
* group 6: male volunteers 36-60 y.o., BMI 26-45

Exclusion Criteria:

* age below 18 years
* age above 60 years
```

## Arms

- **healthy young female**
- **healthy young male**
- **healthy older female**
- **healthy older male**
- **obese older female**
- **obese older male**

## Interventions

- **protein expression pattern of packed red blood cells** (OTHER) — the proteome of packed red blood cells will be assessed at predefined time points

## Primary Outcomes

- **protein expression pattern** _(time frame: week 0)_
- **protein expression pattern** _(time frame: week 2)_
- **protein expression pattern** _(time frame: week 4)_
- **protein expression pattern** _(time frame: week 6)_

## Locations (1)

- Medical University of Vienna, Vienna, Austria

## Recent Field Changes (last 30 days)

- `results.hasResults` — added _(2026-05-12)_
- `locations.medical university of vienna|vienna||austria` — added _(2026-05-12)_
- `status.overallStatus` — added _(2026-05-12)_
- `status.primaryCompletionDate` — added _(2026-05-12)_
- `status.completionDate` — added _(2026-05-12)_
- `status.lastUpdatePostDate` — added _(2026-05-12)_
- `design.enrollmentCount` — added _(2026-05-12)_
- `eligibility.criteria` — added _(2026-05-12)_
- `eligibility.minAge` — added _(2026-05-12)_
- `eligibility.maxAge` — added _(2026-05-12)_
- `eligibility.sex` — added _(2026-05-12)_
- `outcomes.primary` — added _(2026-05-12)_
- `armsInterventions.arms` — added _(2026-05-12)_
- `armsInterventions.interventions` — added _(2026-05-12)_
- `sponsor.lead` — added _(2026-05-12)_
- `sponsor.collaborators` — added _(2026-05-12)_

---

*Canonical: https://parkinsonspathways.com/agent/trials/NCT02639780.md*  
*Source data (authoritative): https://clinicaltrials.gov/study/NCT02639780*  
*This page is a raw mirror with no AI summary, no editorial enrichment, and no Parkinson's-specific filtering.*