This study will assess potentially predictive markers of efficacy in participants with NSCLC receiving oral erlotinib (Tarceva) therapy. The anticipated time on study treatment is until disease progression, unacceptable toxicity or death.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
264
Erlotinib will be administered at 150 milligrams (mg) orally daily until disease progression, unacceptable toxicity or death.
Unnamed facility
Brussels, Belgium
Unnamed facility
Sofia, Bulgaria
Number of Differentially Expressed Genes Associated With Clinical Benefit
Affymetrix gene expression profiles were primarily analyzed to identify differentially expressed genes between the participants who derived clinical benefit status and those who did not. Analysis was performed using a multivariate linear model (with clinical benefit status, histology, ethnicity, sex, RNA integrity number (RIN), smoking status and stage as predictors), and a False Discovery Rate criteria of below 0.3 as cut-off. Clinical benefit is defined in the Outcome Measure 5.
Time frame: Baseline until disease progression, unacceptable toxicity or death, evaluated up to 4 years
Number of Epidermal Growth Factor Receptor (EGFR) Mutation Participants Who Achieved Clinical Benefit
Affymetrix gene expression profiles were primarily analyzed to identify differentially expressed genes between the participants who derived clinical benefit status and those who did not. Analysis was performed using a multivariate linear model (with clinical benefit status, histology, ethnicity, sex, RNA integrity number (RIN), smoking status and stage as predictors), and a False Discovery Rate criteria of below 0.3 as cut-off. Number of participants with EGFR mutation (L858R/ exon 19 deletion) and who achieved clinical benefit status was reported. Clinical benefit is defined in the Outcome Measure 5.
Time frame: Baseline until disease progression, unacceptable toxicity or death, evaluated up to 4 years
Number of KRAS Mutation Participants Who Achieved Clinical Benefit
Affymetrix gene expression profiles were primarily analyzed to identify differentially expressed genes between the participants who derived clinical benefit status and those who did not. Analysis was performed using a multivariate linear model (with clinical benefit status, histology, ethnicity, sex, RNA integrity number (RIN), smoking status and stage as predictors), and a False Discovery Rate criteria of below 0.3 as cut-off. Number of participants with KRAS gene mutation and who achieved clinical benefit status was reported. Clinical benefit is defined in the Outcome Measure 5.
Time frame: Baseline until disease progression, unacceptable toxicity or death, evaluated up to 4 years
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Unnamed facility
Tallinn, Estonia
Unnamed facility
Tartu, Estonia
Unnamed facility
Montpellier, France
Unnamed facility
Paris, France
Unnamed facility
Cologne, Germany
Unnamed facility
Großhansdorf, Germany
Unnamed facility
Hong Kong, Hong Kong
Unnamed facility
Dublin, Ireland
...and 19 more locations
Percentage of Participants With Overall Response of Complete Response (CR) or Partial Response (PR) Using Response Evaluation Criteria in Solid Tumors (RECIST)
Tumor response was defined as either a CR or a PR prior to failure (disease progression, death from any cause, or a second malignancy). CR was defined as the complete disappearance on magnetic response imaging of all enhancing tumor and mass effect on a stable or decreasing dose of dexamethasone (or only receiving adrenal replacement doses) accompanied by a stable or improving neurologic examination that was maintained for at least 12 weeks. PR was defined as a greater than or equal to 50 percent (%) reduction in tumor size by bi-dimensional measurement on a stable or decreasing dose of dexamethasone accompanied by a stable or improving neurologic examination that was maintained for at least 12 weeks.
Time frame: Baseline until disease progression, unacceptable toxicity or death, evaluated up to 4 years
Percentage of Participants With Clinical Benefit (CR, PR, or Stable Disease [SD] for at Least 12 Weeks After Study Entry) Using RECIST
Clinical benefit was defined as either a CR, PR, or SD prior to failure (disease progression, death from any cause, or a second malignancy). CR: complete disappearance on magnetic response imaging of all enhancing tumor and mass effect on a stable or decreasing dose of dexamethasone (or only receiving adrenal replacement doses) accompanied by a stable or improving neurologic examination that was maintained for at least 12 weeks. PR: greater than or equal to 50% reduction in tumor size by bi-dimensional measurement on a stable or decreasing dose of dexamethasone accompanied by a stable or improving neurologic examination that was maintained for at least 12 weeks. SD: neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for progressive disease (PD) taking as reference smallest sum of longest dimensions since treatment started associated to non-progressive disease response for non-target lesions. PD: unequivocal progression of existing non-target lesions.
Time frame: Baseline until disease progression, unacceptable toxicity or death, evaluated up to 4 years