Default Option Nudging Intervention to Improve the Adherence Rates of Cancer Screening
2026년 6월 26일 업데이트: Zhisheng Zheng, Harbin Medical University
Default Option Nudging Intervention to Improve the Adherence Rates of Cancer Screening in High-risk Population: Randomized Controlled Trial and Intervention Disclosure Analysis
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:
- Does presenting a screening appointment as a default option increase the likelihood that high-risk individuals will choose to be screened?
- How do participants react, and what is their level of acceptance, when the nudge intervention is disclosed to them?
- 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:
- Read a short educational text about lung or stomach cancer and its screening.
- Complete an online questionnaire.
- Make a decision regarding a simulated cancer screening appointment.
- Read a disclosure explaining the behavioral nudge strategy used during the study.
- Re-evaluate their screening decision and answer questions regarding their attitude toward the nudge.
연구 개요
연구 유형
중재적
등록 (실제)
1200
단계
- 해당 없음
연락처 및 위치
이 섹션에서는 연구를 수행하는 사람들의 연락처 정보와 이 연구가 수행되는 장소에 대한 정보를 제공합니다.
연구 장소
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Heilongjiang
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Harbin, Heilongjiang, 중국, 150081
- Harbin Medical University
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참여기준
연구원은 적격성 기준이라는 특정 설명에 맞는 사람을 찾습니다. 이러한 기준의 몇 가지 예는 개인의 일반적인 건강 상태 또는 이전 치료입니다.
자격 기준
공부할 수 있는 나이
- 성인
- 고령자
건강한 자원 봉사자를 받아들입니다
예
설명
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.
공부 계획
이 섹션에서는 연구 설계 방법과 연구가 측정하는 내용을 포함하여 연구 계획에 대한 세부 정보를 제공합니다.
연구는 어떻게 설계됩니까?
디자인 세부사항
- 주 목적: 건강 서비스 연구
- 할당: 무작위
- 중재 모델: 병렬 할당
- 마스킹: 더블
무기와 개입
참가자 그룹 / 팔 |
개입 / 치료 |
|---|---|
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간섭 없음: control group (lung cancer screening)
Control group participants received neutral, informational content about lung cancer and screening.
This content included lung cancer's status as a leading cause of cancer mortality, the challenges of late-stage diagnosis, and LDCT as the gold standard screening method.
Participants were informed that high-risk individuals, particularly long-term smokers, require annual screening due to elevated cancer risk, with each participant explicitly told they qualified as high-risk due to their smoking history.
Meanwhile, CanSPUC and its purpose were also shown to the participants.
The screening participation question for controls was framed as: "We provide available time slots for free lung cancer screening.
You can directly view available appointment times and make reservations according to your preference.
Would you like to schedule lung cancer screening?"
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실험적: intervention group (lung cancer screening)
Intervention participants received the same neutral information plus a default option nudge.
The critical modification involved reframing the screening participation measure as: "We have already scheduled a free lung cancer screening appointment for you, which you can attend at your convenience.
If you do not wish to participate, please indicate below."
We also default to "Yes, I would like to make an appointment for lung cancer screening and see the available hours for lung cancer screening" for this question.
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Participants in this arm are subjected to a behavioral "nudge" using a default option mechanism during a simulated online appointment process for cancer screening.
Instead of being asked to actively schedule an appointment (an opt-in approach), the screening appointment is presented to them as pre-selected or pre-scheduled (an opt-out approach).
Furthermore, to evaluate the ethical and behavioral impact of transparency, this intervention uniquely includes a "disclosure" phase: after the initial decision, participants are explicitly informed about the nudge strategy that was just applied to them, and their screening intention is immediately re-measured.
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간섭 없음: control group (gastric cancer screening)
Control group participants received neutral, informational content about gastric cancer and screening.
This content included gastric cancer's status as a cause of cancer mortality, the challenges of late-stage diagnosis, and endoscope as the gold standard screening method.
Participants were informed that high-risk individuals require screening per 5 years, with each participant explicitly told they qualified as high-risk due to their living regions.
Meanwhile, CanSPUC and its purpose were also shown to the participants.
The screening participation question for controls was framed as: "We provide available time slots for free gastric cancer screening.
You can directly view available appointment times and make reservations according to your preference.
Would you like to schedule gastric cancer screening?"
|
|
|
실험적: intervention group (gastric cancer screening)
Intervention participants received the same neutral information plus a default option nudge.
The critical modification involved reframing the screening participation measure as: "We have already scheduled a free gastric cancer screening appointment for you, which you can attend at your convenience.
If you do not wish to participate, please indicate below."
We also default to "Yes, I would like to make an appointment for gastric cancer screening and see the available hours for lung cancer screening" for this question.
|
Participants in this arm are subjected to a behavioral "nudge" using a default option mechanism during a simulated online appointment process for cancer screening.
Instead of being asked to actively schedule an appointment (an opt-in approach), the screening appointment is presented to them as pre-selected or pre-scheduled (an opt-out approach).
Furthermore, to evaluate the ethical and behavioral impact of transparency, this intervention uniquely includes a "disclosure" phase: after the initial decision, participants are explicitly informed about the nudge strategy that was just applied to them, and their screening intention is immediately re-measured.
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연구는 무엇을 측정합니까?
주요 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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Percentage of Participants Who Accept the Cancer Screening Appointment
기간: Immediately after the default option intervention
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This outcome is assessed via a dichotomous choice (Yes/No) embedded in the simulated online scheduling system within the questionnaire.
The value reported will be the percentage of participants who choose to accept and schedule the screening appointment.
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Immediately after the default option intervention
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2차 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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Participant Attitude Score Towards the Default Option Nudge
기간: Immediately after the disclosure of the intervention
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This measure is assessed via a self-reported questionnaire using a Likert scale.
Scores range from 1 to 5, where 1 indicates a very negative attitude and 5 indicates a very positive attitude.
Higher scores represent a better attitude towards the nudge strategy.
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Immediately after the disclosure of the intervention
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Self-Reported Score of the Nudge's Influence on Decision-Making
기간: Immediately after the disclosure of the intervention
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This measure is assessed via a self-reported questionnaire using a Likert scale.
Scores range from 1 to 5, where 1 indicates no influence and 5 indicates extreme influence.
Higher scores indicate that the participant felt the default option had a greater influence on their appointment decision.
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Immediately after the disclosure of the intervention
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Acceptance Score of the Default Option Nudge in Public Health Services
기간: Immediately after the disclosure of the intervention
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This measure is assessed via a self-reported questionnaire using a Likert scale.
Scores range from 1 to 5, where 1 indicates completely unacceptable and 5 indicates completely acceptable.
Higher scores indicate higher social acceptance and suitability of using such behavioral nudges in public health promotion.
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Immediately after the disclosure of the intervention
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Percentage of Participants Who Accept the Appointment After Disclosure
기간: Immediately after the disclosure of the intervention
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This outcome is assessed via a secondary dichotomous choice (Yes/No) presented after the participant reads the disclosure statement explaining the nudge.
The value reported is the percentage of participants who choose to accept the screening at this final stage.
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Immediately after the disclosure of the intervention
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공동 작업자 및 조사자
여기에서 이 연구와 관련된 사람과 조직을 찾을 수 있습니다.
연구 기록 날짜
이 날짜는 ClinicalTrials.gov에 대한 연구 기록 및 요약 결과 제출의 진행 상황을 추적합니다. 연구 기록 및 보고된 결과는 공개 웹사이트에 게시되기 전에 특정 품질 관리 기준을 충족하는지 확인하기 위해 국립 의학 도서관(NLM)에서 검토합니다.
연구 주요 날짜
연구 시작 (실제)
2025년 4월 27일
기본 완료 (실제)
2025년 6월 1일
연구 완료 (실제)
2025년 6월 1일
연구 등록 날짜
최초 제출
2026년 6월 23일
QC 기준을 충족하는 최초 제출
2026년 6월 26일
처음 게시됨 (실제)
2026년 7월 2일
연구 기록 업데이트
마지막 업데이트 게시됨 (실제)
2026년 7월 2일
QC 기준을 충족하는 마지막 업데이트 제출
2026년 6월 26일
마지막으로 확인됨
2026년 6월 1일
추가 정보
이 연구와 관련된 용어
추가 관련 MeSH 약관
기타 연구 ID 번호
- HMUIRB2025029PRE
개별 참가자 데이터(IPD) 계획
개별 참가자 데이터(IPD)를 공유할 계획입니까?
예
IPD 계획 설명
All collected de-identified individual participant data (IPD) that underlie the results reported in the final publication.
This includes demographic characteristics, group allocation, behavioral screening decisions, and responses related to attitudes toward the disclosure intervention.
IPD 공유 기간
Data will be available beginning 6 months and ending 36 months following the publication of the article.
IPD 공유 액세스 기준
Researchers who provide a methodologically sound proposal.
IPD 공유 지원 정보 유형
- 연구_프로토콜
- 수액
- ICF
약물 및 장치 정보, 연구 문서
미국 FDA 규제 의약품 연구
아니
미국 FDA 규제 기기 제품 연구
아니
이 정보는 변경 없이 clinicaltrials.gov 웹사이트에서 직접 가져온 것입니다. 귀하의 연구 세부 정보를 변경, 제거 또는 업데이트하도록 요청하는 경우 register@clinicaltrials.gov. 문의하십시오. 변경 사항이 clinicaltrials.gov에 구현되는 즉시 저희 웹사이트에도 자동으로 업데이트됩니다. .