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Dengue vaccine strategy study aims to protect yunnan communities

NCT ID NCT07206784

Knowledge-focused Sponsor: Fudan University 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
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Sep 10, 2026 · Updated 2 times

Summary

This study, run by Fudan University and local health authorities, uses computer models to predict the best way to use dengue vaccines in Yunnan, China. Researchers will collect blood samples from 220 residents to measure antibody levels and simulate different vaccination scenarios. The goal is to provide scientific evidence to help local officials make informed decisions about dengue prevention.

What this could mean

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

What this could lead to
If successful, this study could provide scientific evidence to guide effective dengue vaccination strategies in Yunnan, potentially reducing disease burden.
What could go wrong
This is a modeling study, not a clinical trial of a vaccine. Results depend on assumptions and may not reflect real-world outcomes. The study is small and observational.

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.

Participants

About 220 people

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

Started

May 2025

Expected to finish

May 2027

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

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

Who is studied

Residents of Jinghong City, Xishuangbanna Prefecture, aged 3 years and older, selected across eight age groups for serological investigation of dengue virus exposure.

Ages

3 years and older

Sex

Anyone

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.

Inclusion Criteria: * Resident of Jinghong City, Xishuangbanna Prefecture * Aged 3 years and above * Able and willing to provide informed consent (or have legal guardian consent for minors) * Available for blood sample collection between May and August 2025 Exclusion Criteria: * Individuals with bleeding disorders or other contraindications to blood draw * Individuals currently diagnosed with acute dengue infection

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Conditions

The condition(s) this trial relates to.

dengue disease prevention target

As listed by the trial registrant

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

Dengue vaccination strategy evaluation Public health impact of vaccination Transmission modeling of dengue

Contacts and locations

Locations

  • Xishuangbanna Center for Disease Control and Prevention

    Jinghong, Yunnan, China