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Default option nudge may boost cancer screening in High-Risk groups

NCT ID NCT07682220

Knowledge-focused Sponsor: Harbin Medical 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
Running, but no longer taking on new participants.
Completed This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jul 02, 2026 · Last updated Jul 02, 2026

Summary

This trial tests whether presenting a cancer screening appointment as a pre-selected default option (opt-out) makes people at high risk for lung or stomach cancer more likely to accept it, compared to a standard opt-in approach. Participants complete an online questionnaire and decide about a simulated screening appointment. The study also examines how people feel about being nudged once the tactic is disclosed.

What this could mean

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

Active substance
Default option nudge (behavioral intervention)
What this could lead to
If effective, this simple scheduling change could boost cancer screening rates in high-risk populations, potentially catching more cancers early.
What could go wrong
This is a simulated online study, not real screening. Real-world behavior may differ, and some people may react negatively to being nudged.

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

1,200 people

The number who actually took part.

Started

Apr 2025

Finished

Jun 2025

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.

Ages

45 to 74 years

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.

Inclusion Criteria: * High-risk population of lung cancer or gastric cancer. * Lung cancer high-risk definition (based on the 2024 Lung Cancer Screening and Early Diagnosis and Treatment Program organized by the National Health Commission of the PRC): Age ≥50 years and pack-years of smoking ≥20, including former smoking ≥20 pack-years, but smoking cessation less than 15 years (Note: Pack-years of smoking = number of packs smoked per day × number of years smoked). * Gastric cancer high-risk definition (based on the 2024 Gastric Cancer Screening and Early Diagnosis and Treatment Program organized by the National Health Commission of the PRC): Age ≥45 years old and living in areas with a high incidence of gastric cancer (Liaoning, Fujian, Gansu, Shandong, Jiangsu). * Ability to read and comprehend simplified Chinese. * The informed consent statement was read and confirmed. Exclusion Criteria: * Reading impairment preventing independent questionnaire completion. * Failure to pass attention checks and logical consistency tests embedded within the questionnaire.

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Conditions

The condition(s) this trial relates to.

gastric neoplasm lung neoplasm Patient Compliance

As listed by the trial registrant

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

Early detection of cancer Lung neoplasms Patient compliance Stomach neoplasms

Contacts and locations

Locations

  • Harbin Medical University

    Harbin, Heilongjiang, 150081, China

More trials for these conditions

Other studies related to the condition(s) this trial covers.