# Encouraging Blood Donation in Patients With a Blood Type in Short Supply

> **NCT05135325** · NA · COMPLETED · sponsor: **Geisinger Clinic** · enrollment: 59093 (actual)

## Conditions studied

- Health Behavior

## Interventions

- **BEHAVIORAL:** Patient portal message
- **BEHAVIORAL:** Social responsibility

## Key facts

- **NCT ID:** NCT05135325
- **Lead sponsor:** Geisinger Clinic
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2021-11-15
- **Primary completion:** 2022-06-06
- **Final completion:** 2022-06-06
- **Target enrollment:** 59093 (ACTUAL)
- **Last updated:** 2022-07-26


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT05135325

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT05135325, "Encouraging Blood Donation in Patients With a Blood Type in Short Supply". Retrieved via AI Analytics 2026-06-09 from https://api.ai-analytics.org/clinical/NCT05135325. Licensed CC0.

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