- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01346579
Biomarkers in Tissue Samples From Older Women With Breast Cancer
July 1, 2016 updated by: Alliance for Clinical Trials in Oncology
PIK3CA Mutation Status as a Biomarker in Elderly Women With Breast Cancer
This research trial studies phosphatidylinositol-4,5-bisphosphate 3-kinase, catalytic subunit alpha (PIK3CA) mutation analysis in tissue samples from older patients with stage I breast cancer.
Studying samples of tissue from patients with stage I breast cancer in the laboratory may help doctors learn more about changes that occur in deoxyribonucleic acid (DNA) and identify biomarkers related to cancer.
Study Overview
Status
Terminated
Conditions
Intervention / Treatment
Detailed Description
PRIMARY OBJECTIVES:
To assess the relapse free-survival difference between patients with PIK3CA mutated and wild-type (WT) tumors and therefore validate PIK3CA mutation status as an important biomarker in women 70 years or older diagnosed with breast cancer.
OUTLINE:
Previously collected tissue samples are analyzed via mutation analysis of PIK3CA.
Study Type
Observational
Enrollment (Actual)
505
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
Ages Eligible for Study
70 years and older (Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
Female
Sampling Method
Non-Probability Sample
Study Population
Patients with breast cancer enrolled on Cancer and Leukemia Group B 9343
Description
- Participants with stage I breast cancer (T1N0M0) and estrogen-receptor status positive or unknown
- Patients underwent lumpectomy with negative margins and were clinically node-negative
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: Case-Only
- Time Perspectives: Retrospective
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Breast cancer-free interval for patients with PIK3CA-mutated tumors
Time Frame: baseline
|
baseline
|
Tumor size
Time Frame: baseline
|
baseline
|
Estrogen receptor status
Time Frame: baseline
|
baseline
|
Lymph node status
Time Frame: baseline
|
baseline
|
Treatment group associated with PIK3CA expression
Time Frame: baseline
|
baseline
|
Secondary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Overall survival associated with PIK3CA
Time Frame: baseline
|
baseline
|
Breast cancer specific survival associated with PIK3CA expression
Time Frame: baseline
|
baseline
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Collaborators
Investigators
- Study Chair: Mary Ellen Moynahan, MD, Memorial Sloan Kettering Cancer Center
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
April 1, 2011
Primary Completion (Actual)
January 1, 2014
Study Completion (Actual)
January 1, 2014
Study Registration Dates
First Submitted
April 30, 2011
First Submitted That Met QC Criteria
April 30, 2011
First Posted (Estimate)
May 3, 2011
Study Record Updates
Last Update Posted (Estimate)
July 4, 2016
Last Update Submitted That Met QC Criteria
July 1, 2016
Last Verified
July 1, 2016
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- CALGB-151101
- CDR0000699810 (Registry Identifier: NCI Physician Data Query)
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
product manufactured in and exported from the U.S.
No
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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