Patient case: 70-year-old male with non-small cell lung cancer; genetic feature: KRAS (G12C)

Clinical trial: Study of Tumor Samples From Patients With Lung Cancer

Summary: RATIONALE: Studying samples of tumor tissue from patients with cancer in the laboratory may help doctors learn more about changes that occur in DNA and identify biomarkers related to cancer.
  PURPOSE: This laboratory study is looking at tumor samples from patients with lung cancer.

Detailed description: OBJECTIVES:
  Primary
  -  To determine the correlation between c-Met expression, mutation and amplification, with stage and overall survival in patients with adenocarcinoma (AC) of the lung.
  Secondary
  -  To determine the correlation with epithelial mesenchymal transition (EMT), EGFR mutations and expression, Kras mutations, p53 mutations, c-CBL protein expression, mutation, loss of heterozygosity (LOH), DUB3 expression & regulation, and ALK translocation, with respect to survival.
  -  To determine the correlation with circulating c-Met and HGF in AC and evaluate prognostic implications of circulating markers in AC of lung.
  -  To determine (when available) levels of circulating Met and HGF in serum before and after surgery.
  OUTLINE: This is a multicenter study.
  Previously collected tissue samples from patients enrolled in CALGB 140202 are assessed for mutation analysis of c-Met, EGFR, and K-ras. DNA is examined by PCR, followed by agarose gel electrophoresis; gene amplification of c-Met is examined by real time quantitative PCR; met/HF protein in serum is examined by ELISA; and c-Met, EGFR, p53, c-CBL, DUB3 enzyme, and ALK, and epithelial mesenchymal transition examined by IHC.

Eligibility: Inclusion Criteria:
  -  Registration to Cancer and Leukemia Group B (CALGB) 140202
  -  Institutional Review Board (IRB) review and approval at the institution where the laboratory work will be performed is required
  -  Informed consent: the CALGB does not require that a separate consent form be signed for this study
  -  The subject population to be studied in this protocol includes patients selected from CALGB 140202; all such patients have signed a written informed consent document meeting all federal, state, and institutional guidelines as part of entry into that trial
  -  All samples to be studied were obtained and stored as part of CALGB 140202; the material and data obtained from the patient's protocol record will be used to obtain appropriate clinical information; in no instance will the patient be contacted directly
  -  There should be no physical, psychological, social, or legal risks associated with this study; no invasive procedures are recommended or requested
  -  All appropriate and necessary procedures will be utilized to maintain confidentiality; all patients who have had samples submitted for analysis will have their CALGB study number used to identify specimens
  -  This study does not require direct patient contact and no specific risk or benefits to individuals involved in the trial are anticipated; it is likely, however, that the information gained will substantially help similar patients in the future

Relevance to patient case: possibly relevant