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Study of Tissue and Blood Samples From Patients With Recurrent Prostate Cancer Who Received Lapatinib on Clinical Trial ECOG-E5803

This study has been completed.
Sponsor:
Collaborator:
National Cancer Institute (NCI)
Information provided by (Responsible Party):
Eastern Cooperative Oncology Group ( ECOG-ACRIN Cancer Research Group )
ClinicalTrials.gov Identifier:
NCT00897351
First received: May 9, 2009
Last updated: May 16, 2017
Last verified: May 2017
  Purpose

RATIONALE: Studying samples of tumor tissue and blood in the laboratory from patients with cancer may help doctors learn more about changes that occur in DNA and identify biomarkers related to cancer. It may also help doctors predict how patients will respond to treatment.

PURPOSE: This research study is looking at tissue and blood samples from patients with recurrent prostate cancer who received lapatinib on clinical trial ECOG-E5803.


Condition Intervention
Prostate Cancer Genetic: mutation analysis Genetic: polymorphism analysis Genetic: protein expression analysis Other: immunohistochemistry staining method Other: laboratory biomarker analysis

Study Type: Observational
Study Design: Observational Model: Other
Time Perspective: Retrospective
Official Title: Evaluation of Polymorphisms, Mutations, and Protein Expression by Automated Quantitative Immunohistochemistry (AQUA) in the LapatinibTargets and Metabolic Pathway in Samples From E5803

Resource links provided by NLM:


Further study details as provided by Eastern Cooperative Oncology Group ( ECOG-ACRIN Cancer Research Group ):

Primary Outcome Measures:
  • Polymorphisms associated with toxicity [ Time Frame: 1 month ]
  • Association between mutations in EGFR, HER-2 and Kras; protein expression of HER2, EGFR, MAPK and AKT; polymorphism controlling androgen synthesis; and progression-free survival [ Time Frame: 1 month ]

Enrollment: 37
Actual Study Start Date: July 10, 2008
Study Completion Date: February 10, 2009
Primary Completion Date: February 10, 2009 (Final data collection date for primary outcome measure)
Detailed Description:

OBJECTIVES:

  • To determine the association between polymorphisms in drug metabolizing enzymes and lapatinib ditosylate-associated toxicity in patients with hormone-sensitive recurrent prostate cancer receiving lapatinib ditosylate on clinical trial ECOG-E5803.
  • To determine the association between mutations in EGFR, HER-2 and Kras; protein expression of HER2, EGFR, MAPK and AKT; polymorphism controlling androgen synthesis; and progression-free survival.

OUTLINE: Tissue and blood samples collected from patients enrolled on clinical trial ECOG-E5803 are analyzed for correlative studies. Samples are assessed for HER2, EGFR, MAPK, and Akt; EGFR mutations and polymorphisms in CYP3A4; Ras mutations; recently identified mutations in HER2-neu and Kras; and additional polymorphisms in the lapatinib ditosylate metabolic pathway by automated quantitative IHC. Predictors of efficacy and toxicity are analyzed, including markers in the EGFR pathway as predictors of progression-free survival.

  Eligibility

Ages Eligible for Study:   18 Years to 120 Years   (Adult, Senior)
Sexes Eligible for Study:   Male
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Samples submitted for research from patients enrolled on E5803
Criteria

DISEASE CHARACTERISTICS:

  • Diagnosis of prostate cancer

    • Recurrent disease
  • Received lapatinib ditosylate on clinical trial ECOG-E5803

PATIENT CHARACTERISTICS:

  • Not specified

PRIOR CONCURRENT THERAPY:

  • See Disease Characteristics
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT00897351

Sponsors and Collaborators
ECOG-ACRIN Cancer Research Group
National Cancer Institute (NCI)
Investigators
Study Chair: Jill Kolesar, PharmD University of Wisconsin, Madison
  More Information

Responsible Party: ECOG-ACRIN Cancer Research Group
ClinicalTrials.gov Identifier: NCT00897351     History of Changes
Other Study ID Numbers: CDR0000600985
ECOG-E5803T1
Study First Received: May 9, 2009
Last Updated: May 16, 2017

Keywords provided by Eastern Cooperative Oncology Group ( ECOG-ACRIN Cancer Research Group ):
recurrent prostate cancer

Additional relevant MeSH terms:
Prostatic Neoplasms
Genital Neoplasms, Male
Urogenital Neoplasms
Neoplasms by Site
Neoplasms
Genital Diseases, Male
Prostatic Diseases

ClinicalTrials.gov processed this record on September 21, 2017