NCT07682220Completed
Default Option Nudging Intervention to Improve the Adherence Rates of Cancer Screening
Default Option Nudging Intervention to Improve the Adherence Rates of Cancer Screening in High-risk Population: Randomized Controlled Trial and Intervention Disclosure Analysis
Source: ClinicalTrials.gov · Last updated 2 Jul 2026
Brief summary (registry, in English)
The goal of this clinical trial is to learn if a behavioral "nudge" strategy, specifically a default option, can improve screening participation in populations at high risk for lung and stomach cancer. The main questions it aims to answer are: 1. Does presenting a screening appointment as a default option increase the likelihood that high-risk individuals will choose to be screened? 2. How do participants react, and what is their level of acceptance, when the nudge intervention is disclosed to them? 3. Does this transparency (disclosing the nudge) change their subsequent screening decisions? Researchers will compare a default option group to a standard control group to see if the nudge effectively increases screening adherence. Participants will: 1. Read a short educational text about lung or stomach cancer and its screening. 2. Complete an online questionnaire. 3. Make a decision regarding a simulated cancer screening appointment. 4. Read a disclosure explaining the behavioral nudge strategy used during the study. 5. Re-evaluate their screening decision and answer questions regarding their attitude toward the nudge.
- Status (registry)
- Completed
- Study type
- Interventional
- Enrollment
- 1200 (actual)
- First submitted
- 23 Jun 2026
- Start date
- 27 Apr 2025
- Primary completion date
- 1 Jun 2025
- Lead sponsor
- Harbin Medical University
- Diseases
- Lung cancer, Gastric and esophageal cancer
- NCT number
- NCT07682220
What you commit to
- Study type: Interventional
- Participants enrolled: 1200
- From 27 Apr 2025 to the primary completion date, 1 Jun 2025
- 1 site in 1 country
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Other illness
- Reading impairment preventing independent questionnaire completion.
- Failure to pass attention checks and logical consistency tests embedded within the questionnaire.
Who the study is looking for
- 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.
Age in the registry: 45 years to 74 years · Sex: All · Accepts healthy volunteers
Sites (1)
Sites in registry order. Save your city in your profile to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| Harbin Medical University Coordinator of this site? Confirm its status | Harbin | China | Unknown status |
This page is information, not medical advice. Discuss any trial with your doctor.