# Lottery Incentive Nudges to Increase Influenza Vaccinations

> **NCT05012163** · NA · COMPLETED · sponsor: **National Bureau of Economic Research, Inc.** · enrollment: 57581 (actual)

## Conditions studied

- Influenza
- Vaccination
- Health Promotion
- Health Behavior

## Interventions

- **BEHAVIORAL:** Reminder
- **BEHAVIORAL:** Financial incentive
- **BEHAVIORAL:** Lottery

## Key facts

- **NCT ID:** NCT05012163
- **Lead sponsor:** National Bureau of Economic Research, Inc.
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2021-09-04
- **Primary completion:** 2021-12-31
- **Final completion:** 2022-12-31
- **Target enrollment:** 57581 (ACTUAL)
- **Last updated:** 2024-12-30

## Collaborators

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## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT05012163

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT05012163, "Lottery Incentive Nudges to Increase Influenza Vaccinations". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT05012163. Licensed CC0.

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