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OpenTrials
Completed

NCT Number: NCT00967824

Tamoxifen Citrate Decision Aids for Women at Increased Risk of Breast Cancer

RATIONALE: Evaluating a decision aid that describes the risks and benefits of taking tamoxifen citrate to prevent breast cancer may be helpful for women at increased risk of breast cancer.

PURPOSE: This randomized phase I/II trial is studying tamoxifen citrate decision aids for women at increased risk of breast cancer.

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Key information

Sex eligibility

Female

Study type

Interventional

Phase

Phase 1 / Phase 2

About this study

OBJECTIVES:

  • To develop and test a decision aid for describing the risks and benefits of taking tamoxifen citrate to prevent primary breast cancer in women at increased risk of breast cancer.

OUTLINE:

  • Phase I: Patients are randomized to view 1 of 16 decision aids that vary in terms of how the information is presented based on 5 dimensions: 1) statistical information in pictographs vs plain text, 2) risk information presented with denominators of 100 vs 1000, 3) risk information presented in terms of total vs additional risk, 4) whether the risks of tamoxifen citrate are presented before or after the benefits are presented, and 5) contextual information about other risks the patient faces (all cause mortality, colon cancer, heart attack).

Patients complete baseline and post-test questionnaires.

  • Phase II: Patients are randomized to 1 of 3 arms.
  • Arm I (control): Patients do not view the decision aid, but complete baseline and post-test questionnaires.
  • Arm II (control): Patients complete a baseline questionnaire only. They do not view the decision aid or complete the post-test questionnaire.
  • Arm III (intervention): Patients view 1 of 16 decision aids that vary based on 5 factors: 1) providing (or not) comparative information about the average woman's breast cancer risk, 2) sequencing presentation of risks and benefits (risks first vs benefits first), 3) including (or not) a summary table following presentation of risks and benefits, 4) using second vs third person language ("your risk" vs "a person like you"), and 5) presenting the decision as having 2 vs 3 options (taking/not taking a breast cancer prevention drug vs taking tamoxifen citrate/raloxifene, or no drug). Patients also complete baseline and post-test questionnaires.

Patients in both phases complete an online follow-up survey at 3 months. Patients in arms I or II (of phase II) receive a decision aid after completion of the follow-up survey.

Who can participate

Healthy volunteers accepted: No

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

DISEASE CHARACTERISTICS:

  • Believed to be at increased risk of breast cancer (risk of ≥ 1.66% over 5 years) according to electronic-based medical data

PATIENT CHARACTERISTICS:

  • Not specified

PRIOR CONCURRENT THERAPY:

  • Not specified

Treatment and study plan

Informational intervention

Other

Questionnaire Administration

Other

Survey Administration

Other

Primary outcomes

  1. Development and testing of a decision aid that describes the risks and benefits of taking tamoxifen citrate to prevent primary breast cancer

Sponsors and collaborators

Lead sponsor

University of Michigan Rogel Cancer Center

Other

Collaborators

  • National Cancer Institute (NCI)

Registry information

Official study title

Developing and Testing a Tamoxifen Prophylaxis Decision Aid

Important dates

Study start
2005
Primary completion
2008
First posted
Aug 28, 2009
Registry last updated
Mar 24, 2011

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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