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RATIONALE: Biological therapies such as erlotinib may interfere with the growth of tumor cells and slow the growth of the tumor.
- Determine the efficacy of erlotinib, in terms of response rate and duration of stable disease, in patients with recurrent or metastatic colorectal cancer.
- Determine the toxicity of this drug in these patients.
- Determine the time to progression and response duration in patients treated with this drug.
- Determine the relationships between clinical, pharmacokinetic, and pharmacodynamic effects of this drug in these patients.
- Correlate baseline and post-treatment levels of epidermal growth factor receptor, its downstream signaling components, markers of angiogenesis, and apoptosis in tumor and skin biopsies with clinical outcome in patients treated with this drug.
OUTLINE: This is a multicenter study.
Patients receive oral erlotinib once daily. Treatment repeats every 28 days in the absence of disease progression or unacceptable toxicity. Patients with a complete response (CR) receive 2 additional courses after CR is confirmed.
Patients are followed every 8 weeks.
PROJECTED ACCRUAL: A total of 15-30 patients will be accrued for this study within 4-8 months.
Primary Purpose: Treatment
Cancer Care Ontario-Hamilton Regional Cancer Centre
National Cancer Institute (NCI)
Published on BioPortfolio: 2014-07-24T14:34:14-0400
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Molecular aberrations in KRAS, NRAS, BRAF, and PIK3CA have been well-described in advanced colorectal cancer. The incidences of other mutations are less known. We report results of molecular profiling...
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Tumors or cancer of the COLON or the RECTUM or both. Risk factors for colorectal cancer include chronic ULCERATIVE COLITIS; FAMILIAL POLYPOSIS COLI; exposure to ASBESTOS; and irradiation of the CERVIX UTERI.
Tumor suppressor genes located in the 5q21 region on the long arm of human chromosome 5. The mutation of these genes is associated with the formation of colorectal cancer (MCC stands for mutated in colorectal cancer).
Tumor suppressor genes located in the 18q21-qter region of human chromosome 18. The absence of these genes is associated with the formation of colorectal cancer (DCC stands for deleted in colorectal cancer). The products of these genes show significant homology to neural cell adhesion molecules and other related cell surface glycoproteins.
A group of autosomal-dominant inherited diseases in which COLON CANCER arises in discrete adenomas. Unlike FAMILIAL POLYPOSIS COLI with hundreds of polyps, hereditary nonpolyposis colorectal neoplasms occur much later, in the fourth and fifth decades. HNPCC has been associated with germline mutations in mismatch repair (MMR) genes. It has been subdivided into Lynch syndrome I or site-specific colonic cancer, and LYNCH SYNDROME II which includes extracolonic cancer.
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