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Nudge tactics aim to boost flu shots for hospital staff in china

NCT ID NCT07157163

Prevention Sponsor: Centers for Disease Control and Prevention, China Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 26, 2026 · Last updated Jun 26, 2026

Summary

This trial tests whether simple nudges (reminder messages) and motivational interviewing can increase flu vaccination among 4,050 healthcare workers in Chinese community hospitals. In phase 1, hospitals get either standard nudges, personalized nudges with a chatbot, or no reminders. In phase 2, unvaccinated workers get motivational interviewing or no extra contact. The goal is to find effective ways to protect healthcare workers and their patients from the flu.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
behavioural interventions (nudge messages and motivational interviewing)
What this could lead to
If successful, this could provide simple, low-cost ways to boost flu vaccination rates among healthcare workers, reducing flu spread in hospitals.
What could go wrong
This is a behavioural study, not a medical treatment. Results depend on human behaviour and may not apply outside China or to other groups.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 4,050 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Sep 2025

An estimate. Start dates often move.

Expected to finish

Mar 2026

An estimate. End dates often move.

Lead sponsor

A government agency

The lead sponsor is a government body.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Phase 1: Cluster-Randomized Controlled Trial Inclusion Criteria: * Full-time employees of community hospitals who remain employed throughout the study period. * Have not scheduled or received an influenza vaccine between August 2024 and the time of formal enrollment. * Agree to participate and provide informed consent. Exclusion Criteria: * Participants with medical conditions that contraindicate influenza vaccination. * Participants who refuse to participate or do not provide informed consent . Phase 2: Individual Randomized Controlled Trial Inclusion Criteria: * Healthcare workers from community hospitals who remain unvaccinated after Phase 1, as verified by official records, will be screened. * A selected subset of these individuals will be invited to participate in Phase 2. Exclusion Criteria: \- Participants who refuse to participate or do not provide informed consent .

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Conditions

The condition(s) this trial relates to.

influenza

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Healthcare workers Influenza vaccine

How to take part

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  1. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  2. A doctor treating you

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