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Completed

NCT Number: NCT07071415

Overdiagnosis and Breast Cancer Screening Decisions

This is a survey-based study using an online panel. The goal of the study is to understand whether information about overdiagnosis influences breast cancer screening intention among older women. Participants are first asked a series of questions about breast cancer screening including their intention to continue screening, knowledge of screening, and beliefs about screening. They are then shown one of three videos about breast cancer screening that contain information about overdiagnosis or a fourth control video that is identical but contains no information about overdiagnosis. Participants are then again asked about screening intention, along with knowledge of screening, overdiagnosis, and questions around trust.

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Key information

Conditions

Mammography Screening Decision Aid Geriatrics

Age range

70 year and older

Sex eligibility

Female

Study type

Interventional

Phase

Not applicable

Primary location

Yale School of Medicine

New Haven, Connecticut, 06511, United States

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • 70 and older
  • Able to participate in an English-language web-based survey

Exclusion criteria

  • Prior history of breast cancer or ductal carcinoma in situ

Treatment and study plan

Breast cancer screening decision aid -- low risk

Behavioral

Participants in this study will view a video-based decision aid that describes the risks and benefits of breast cancer screening for older women. Participants assigned to the low risk of overdiagnosis arm will view a version of the decision aid the describes a low risk of overdiagnosis.

Breast cancer decision aid -- moderate risk

Behavioral

Participants in this study will view a video-based decision aid that describes the risks and benefits of breast cancer screening for older women. Participants assigned to the moderate risk of overdiagnosis arm will view a version of the decision aid the describes a moderate risk of overdiagnosis.

Breast cancer screening decision aid -- high risk

Behavioral

Participants in this study will view a video-based decision aid that describes the risks and benefits of breast cancer screening for older women. Participants assigned to the high risk of overdiagnosis arm will view a version of the decision aid the describes a high risk of overdiagnosis.

Control condition

Other

Participants in this study will view a video-based decision aid that describes the risks and benefits of breast cancer screening for older women. Participants assigned to the control arm will view a version of the decision aid that does not contain any information about overdiagnosis.

Primary outcomes

  1. Participants intention to screen

    Time frame: Day 1

    Intention to screen, measured on a 15 point scale. Total score range 1-15, lower score means less likely to screen.

Secondary outcomes

  1. Knowledge of breast cancer screening

    Time frame: Day 1

    Knowledge of screening will be quantified as the proportion of correct answers out of a total possible 7 questions in the pre test and 11 questions in the post test.

  2. Understanding of overdiagnosis

    Time frame: Day 1

    Understanding of overdiagnosis will be quantified as proportion of correct responses out of 3 questions about overdiagnosis.

Sponsors and collaborators

Lead sponsor

Yale University

Other

Collaborators

  • National Cancer Institute (NCI)
  • National Institutes of Health (NIH)

Registry information

Official study title

Breast Cancer Screening Decision Aid

Important dates

Study start
2025
Primary completion
2025
Study completion
2025
First posted
Jul 17, 2025
Registry last updated
Jul 17, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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