Knowledge and Attitudes of Patients and Healthcare Professionals on a Spectrum of Genetic Tests Relevant to Breast Cancer Patients

December 10, 2013 updated by: National University Hospital, Singapore

Objectives:

Primary objectives:

• The investigators aim to conduct a questionnaire survey in a South-East Asian tertiary institution, to assess whether breast cancer patients and their physicians would consider the use of three different kinds of genetic tests currently available to breast cancer patients:

  • BRCA1/2 germline testing,
  • CYP2D6 genotyping and
  • Oncotype DX® testing.

Secondary objectives:

To explore factors which might influence their decisions on genetic testing, including:

  1. Acceptability of the tests and anti-cancer management based on the test results
  2. Reliability and affordability of the test
  3. Ability of the test to influence treatment decisions

  4. Broader implications of the test, e.g., psychosocial, financial impact Study design: Cross-sectional study, Survey Questionnaires were developed for 3 categories of individuals:

    • Patients with early stage breast cancer
    • Healthcare professionals caring for breast cancer patients
    • Medical students /cancer researchers The questionnaires for patients and medical students/cancer researchers are similar. The questionnaires contain a brief section on demographic information, interest in and past experience with genetic testing. Three hypothetical situations are described to determine if participants will agree to BRCA1/2 testing, CYP2D6 genotyping and Oncotype DX® testing, respectively. 18 categorical 'yes'/ 'no' questions explore reasons for their decisions. Each scenario requires a short, hand-written response.

The questionnaire for healthcare professionals contains a brief section on demographics and past experience with genetic testing. Three hypothetical situations are described to determine if healthcare professionals will recommend their patients for BRCA1/2 testing, CYP2D6 genotyping and Oncotype DX® testing, respectively. 12 categorical questions explore the reasons for their decision, and physicians are required to rank these in order of importance.

Distribution of questionnaires:

Questionnaires will be handed out to agreeable participants on the following occasions:

  1. Patients- National University Health System Cancer Centre Level 3 amp; 4 waiting areas
  2. Medical students - before or after lectures, or at personal contact
  3. Cancer researchers - before or after lectures, or at personal contact
  4. Healthcare professionals - before or after NUHS breast tumour board, or at personal contact Due caution will be exercised to ensure that the questionnaire is only handed out to subjects who are aged 21 years and above.

No subject identity will be collected for these questionnaires.

Rationale and Hypothesis:

BRCA1/2 germline testing, CYP2D6 genotyping and Oncotype DX® testing have all been approved for use in clinical practice, but controversy still exists surrounding their utility, and apart from BRCA1/2 mutation testing in high-risk individuals, genetic tests are not routinely performed in Singapore. BRCA1/2 germline mutation testing is performed in individuals at high risk for hereditary cancer. CYP2D6 genotype testing predicts the benefit of adjuvant tamoxifen therapy; poor and intermediate metabolisers of tamoxifen may have a higher risk of breast cancer recurrence due to lower efficacy of tamoxifen because of less efficient conversion of tamoxifen to endoxifen, the active metabolite of tamoxifen. Oncotype DX® testing is a gene-expression profiling test performed on a formalin-fixed paraffin embedded tumour specimen, to predict the risk of breast cancer recurrence and guide decisions on adjuvant chemotherapy. Understanding the attitudes of patients and medical professionals toward these genetic tests may help to guide medical oncologists in their clinical recommendations and utilization of these tests in breast cancer patients.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Unknown

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Anticipated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
850

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • Singapore
      • Singapore, Singapore
        • Recruiting
        • Nationa University Hospital
        • Contact:
        • Principal Investigator:
          • Andrea Wong, MRCP

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

21 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Female

Sampling Method

Probability Sample

Study Population

Questionnaires will be handed out to agreeable participants on the following occasions. 1. Patients- National University Health System Cancer Centre Level 3 amp; 4 waiting areas 2. Medical students - before or after lectures, or at personal contact 3. Cancer researchers - before or after lectures, or at personal contact 4. Healthcare professionals - before or after NUHS breast tumour board, or at personal contact Due caution will be exercised to ensure that the questionnaire is only handed out to subjects who are aged 21 years and above.

Description

Inclusion Criteria:

  • Patients with early stage breast cancer
  • Healthcare professionals caring for breast cancer patients
  • Medical students /cancer researchers

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Cohort
  • Time Perspectives: Cross-Sectional

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Conduct a questionnaire survey in a South-East Asian tertiary institution
The investigators aim to conduct a questionnaire survey in a South-East Asian tertiary institution, to assess whether breast cancer patients and their physicians would consider the use of three different kinds of genetic tests currently available to breast cancer patients: BRCA1/2 germline testing, CYP2D6 genotyping and Oncotype DX® testing.

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
To explore factors which might influence their decisions on genetic testing

To explore factors which might influence their decisions on genetic testing, including:

  1. Acceptability of the tests and anti-cancer management based on the test results
  2. Reliability and affordability of the test
  3. Ability of the test to influence treatment decisions
  4. Broader implications of the test, e.g., psychosocial, financial impact

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
National University Hospital, Singapore

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
January 1, 2011

Primary Completion (Anticipated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 1, 2014

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
April 2, 2012

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
June 12, 2012

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
June 14, 2012

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
December 11, 2013

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
December 10, 2013

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
December 1, 2013

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 2010/00752

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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