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Completed

NCT Number: NCT00450424

Educational CD-ROM Compared With Standard Informed Consent for Patients With Colorectal Cancer or a Family History of Colorectal Cancer

RATIONALE: The use of a CD-ROM may help patients with colorectal cancer or a family history of colorectal cancer make informed decisions about undergoing microsatellite instability (MSI) testing.

PURPOSE: This randomized clinical trial is studying an educational CD-ROM to see how well it works compared with standard informed consent to assist decision-making about MSI testing in patients with colorectal cancer or a family history of colorectal cancer.

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Key information

Conditions

Colorectal Cancer Colonic Diseases Colonic Neoplasms Colorectal Neoplasms Colorectal Neoplasms, Hereditary Nonpolyposis Congenital, Hereditary, and Neonatal Diseases and Abnormalities DNA Repair-Deficiency Disorders Digestive System Diseases Digestive System Neoplasms Gastrointestinal Diseases Gastrointestinal Neoplasms Genetic Diseases, Inborn Hereditary Non-polyposis Colon Cancer Intestinal Diseases Intestinal Neoplasms Metabolic Diseases Neoplasms Neoplasms by Site Neoplastic Syndromes, Hereditary Nutritional and Metabolic Diseases Rectal Diseases Rectal Neoplasms

Age range

21 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Helen F. Graham Cancer Center at Christiana Hospital, Newark, Delaware, United States

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About this study

OBJECTIVES:

Primary

  • Compare the impact of standard informed consent vs a CD-ROM educational intervention on knowledge about microsatellite instability (MSI) testing in patients with colorectal cancer (CRC) or a family history of CRC.
  • Determine the impact of these interventions on patient satisfaction with the preparation to make a decision.

Secondary

  • Determine whether the CD-ROM educational intervention has a differential impact on satisfaction with the MSI test decision, difficulty making the MSI test decision, and decisional conflict, as well as on patients' attitudes about MSI testing and CRC (e.g., perceived benefits and barriers to having the MSI test, perceived risk for colorectal and related cancers, self-efficacy), on general and cancer-related distress, and on discussions with family members about the MSI test and familial CRC risk.
  • Assess whether demographic factors, disease/family history characteristics, family support for testing, and cancer-related distress moderate the impact of the intervention on satisfaction with and completeness of the informed consent process.

OUTLINE: This is a multicenter, pilot, study (part I) followed by a randomized study (part II).

  • Part I: The educational CD-ROM is developed over 9 months. Patients receive a pilot version of the CD-ROM and provide feedback regarding usability and content.
  • Part II: Patients are randomized to 1 of 2 arms.
  • Arm I: Patients complete a baseline interview and receive a standard informed consent for microsatellite instability (MSI) testing and a brief, standardized explanation of the MSI test.
  • Arm II: Patients complete a baseline interview and receive a standard informed consent for MSI testing and the educational CD-ROM developed in phase I.

All patients in part II (even those that did not consent to the MSI test) complete a follow-up survey at 2 weeks.

Tissue samples from patients are analyzed by immunohistochemistry and MSI assay (polymerase chain reaction) for MLH1 and MSH2.

PROJECTED ACCRUAL: A total of 184 patients will be accrued for this study.

Who can participate

Healthy volunteers accepted: No

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

Patient or family member meeting 1 of the following revised Bethesda colorectal cancer (CRC) criteria:

  • Diagnosis of colon or rectal cancer at < 50 years of age
  • Diagnosis of > 1 CRC at one time in the past
  • Diagnosis of ≥ 1 CRC at different times
  • Diagnosis of CRC and any other hereditary nonpolyposis colorectal cancer (HNPCC)-related cancers
  • Diagnosis of CRC in ≥ 2 first-degree or second-degree relatives with HNPCC-related tumor and ≥ 1 cancer diagnosed at < 50 years of age
  • Diagnosis of CRC in ≥ 2 first- or second-degree relatives with HNPCC-related tumors, regardless of age
  • Diagnosis of CRC with pathologic features suggestive of microsatellite instability (MSI) and < 60 years of age
  • Patients with CRC meeting the Amsterdam criteria defined below are ineligible:
  • Three relatives with CRC with 1 being a first-degree relative of the other 2
  • Cases that span ≥ 2 generations
  • At least 1 CRC case diagnosed before 50 years of age

PATIENT CHARACTERISTICS:

  • Not specified

PRIOR CONCURRENT THERAPY:

  • Not specified

Treatment and study plan

counseling intervention

Other

Participants in the Counseling intervention will meet with the study health educator who will provide the participant with the standard MSI informed consent form and provide a brief, standardized explanation of the MSI test. At that time, the participant can ask any questions s/he wishes to ask. The patients will either sign (or not sign, if they do not consent to have the test, or wish to think further about the decision) after this discussion. Participants who have further questions will be referred to either the attending physician or the genetics counselor at each hospital site.

CD-ROM intervention

Other

Participants who are randomized to the CD-ROM condition will complete the baseline interview and then meet with the health educator who will provide the participant with the standard MSI consent form and provide a brief, standardized explanation of the MSI test. At that time, the participant can ask any questions s/he wishes to ask. Next, the participant will be provided with the CD-ROM to view on a laptop computer in the clinic. Participants will also be given a copy of the CD-ROM to take home and keep for future reference. The CD-ROM patients will sign (or not sign, if they do not consent or wish to think further about the decision) the consent form after this discussion.

Primary outcomes

  1. Impact of Standard Informed Consent vs CD-ROM Educational Intervention on Knowledge About Microsatellite Instability (MSI) Testing

    Time frame: 2 weeks after enrollment

    10-item true/false MSI knowledge survey developed by the oncologists on trial. (e.g., "Microsatellite Instability is found in every person that has had cancer."; "Microsatellite Instability may be caused by a permanent change in a gene that is inherited from a person's mother or father."). Participants can score anywhere from 0 (no questions answered correctly) to 10 (all questions answered correctly).

Secondary outcomes

  1. Differential Impact of CD-ROM on Satisfaction With MSI Test Decision, Difficulty Making Decision & Decisional Conflict; Attitude; General & Cancer-related Distress; Discussions With Family About MSI Test & Familial Colorectal Cancer Risk

    Time frame: at enrollment and 2 weeks after enrollment

    Participants completed a baseline survey upon enrollment to the trial. 2 weeks after baseline, they completed a follow-up survey (assessed at both baseline and FU). Differential impact of CD-ROM on satisfaction with MSI test decision, difficulty making decision & decisional conflict; attitude; general & cancer-related distress; discussions with family about MSI test & familial colorectal cancer risk were measured.

  2. Impact of Demographic Factors, Disease/Family History Characteristics, Family Support, and Cancer-related Distress on Satisfaction With and Completeness of the Informed Consent Process

    Time frame: at enrollment and 2 weeks after enrollment

    Participants completed a baseline survey upon enrollment to the trial. 2 weeks after baseline, they completed a follow-up survey (assessed at both baseline and FU). Impact of demographic factors, disease/family history characteristics, family support, and cancer-related distress on satisfaction with and completeness of the informed consent process was measured

  3. Patient Satisfaction With the Preparation to Make a Decision

    Time frame: at enrollment and 2 weeks after enrollment

    Participants completed a baseline survey upon enrollment to the trial. 2 weeks after baseline, they completed a follow-up survey (assessed at both baseline and FU).

Sponsors and collaborators

Lead sponsor

Fox Chase Cancer Center

Other

Collaborators

  • National Cancer Institute (NCI)

Registry information

Official study title

Facilitating Informed Decisions for MSI Testing

Important dates

Study start
2007
Primary completion
2011
Study completion
2011
First posted
Mar 22, 2007
Registry last updated
Sep 5, 2014

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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