Trial Outcomes & Findings for A Study In Patients With Non-Small Cell Lung Cancer Testing If Erlotinib Plus SU011248 (Sunitinib) Is Better Than Erlotinib Alone (NCT NCT00265317)

A Study In Patients With Non-Small Cell Lung Cancer Testing If Erlotinib Plus SU011248 (Sunitinib) Is Better Than Erlotinib Alone

PFS=time from randomization date to date of first documentation of progressive disease (PD; defined as greater than or equal to \[≥\]20% increase in sum of longest dimensions of target lesions taking as a reference smallest sum of longest dimensions recorded since first dose or appearance of ≥1 new lesions) or death on-study due to any cause, whichever occurred first based on third party independent imaging review laboratory assessment. PFS calculated as (first event date minus randomization date plus 1) divided by 7.02. Used 7.02 days as it equals 365 days per year divided by 52 weeks per year.

Objective Response Rate (ORR)=participants with confirmed complete response (CR) or partial response (PR) according to Response Evaluation Criteria in Solid Tumors (RECIST,Version 1.0) based on third party independent imaging review laboratory assessment. A CR was defined as the disappearance of all target lesions that persisted on repeat imaging study at least 4 weeks after initial documentation of response. A PR was defined as a ≥30% decrease in sum of longest dimensions of target lesions taking as a reference the baseline sum longest dimensions.

TTP was defined as the time from date of randomization to first documentation of PD based on third party independent imaging review laboratory assessment. TTP was calculated as (first event date minus randomization date plus 1) divided by 7.02.

DR was defined as time from first documentation of objective tumor response (CR or PR) that was subsequently confirmed to the first documentation of PD or death on-study due to any cause, whichever occurred first. DR was calculated as (first date of PD or death minus first date of CR or PR that was subsequently confirmed plus 1) divided by 7.02.

OS was defined as time from date of randomization to date of death due to any cause. OS was calculated as (date of death minus date of randomization plus 1) divided by 30.4. For participants still alive at the time of analysis, OS time was censored on last date that participants were known to be alive.

Percentage of participants alive at 1 year after date of first administration of study medication.

AUC0-24=Area under the plasma concentration versus time curve from time zero (pre-dose) to 24 hours (0-24) of erlotinib

AUC0-24=Area under the plasma concentration versus time curve from time zero (pre-dose) to 24 hours (0-24) of sunitinib

AUC0-24=Area under the plasma concentration versus time curve from time zero (pre-dose) to 24 hours (0-24) of SU-012662 (metabolite of sunitinib)

AUC0-24=Area under the plasma concentration versus time curve from time zero (pre-dose) to 24 hours (0-24) of total drug (sunitinib + SU-012662)

AUC (0-inf) = Area under the plasma concentration versus time curve (AUC) from time zero (pre-dose) to extrapolated infinite time (0-inf) for erlotinib. It is obtained from AUC from time zero (pre-dose) to last quantifiable concentration(AUC\[0-t\]) plus AUC from time last quantifiable concentration extrapolated infinite time (AUC\[t-inf\])

AUC (0 - inf) = Area under the plasma concentration versus time curve (AUC) from time zero (pre-dose) to extrapolated infinite time (0-inf) for sunitinib. It is obtained from AUC(0-t) plus AUC(t-inf)

AUC(0-inf) = Area under the plasma concentration versus time curve (AUC) from time zero (pre-dose) to extrapolated infinite time (0-inf) for SU-012662 (metabolite of sunitinib). It is obtained from AUC(0-t) plus AUC(t-inf)

AUC(0-inf) = Area under the plasma concentration versus time curve (AUC) from time zero (pre-dose) to extrapolated infinite time (0-inf) for total drug (sunitinib + SU-012662). It is obtained from AUC(0-t) plus AUC(t-inf)

Plasma decay half-life is the time measured for the plasma concentration to decrease by one half.

Plasma decay half-life is the time measured for the plasma concentration to decrease by one half.

Ctrough = plasma concentration of erlotinib prior to study drug administration. Dose correction was made to the initial intended dose in Cycle 1. Assessed in the Original and Amended Lead-In (Arms A and B) Cohorts predose on Day 1 (Cycles 3-13) and in the Randomized Cohort (Sunitinib + Erlotinib treatment group only) predose on Day 1 of Cycles 1-18.

Ctrough = plasma concentration of erlotinib prior to study drug administration. Dose correction was made to the initial intended dose in Cycle 1. Assessed in the Original Cohort predose on Day 15 (Cycle 1, Time Zero) and Day 1 (Cycle 3), in the Amended Lead-In Cohort (Arms A and B) predose on Day 1 (Cycle 3) and in the Randomized Cohort (Sunitinib + Erlotinib treatment group only) predose on Day 1 of Cycles 1-18.

Ctrough = plasma concentration of sunitinib prior to study drug administration. Dose correction was made to the initial intended dose in Cycle 1. Assessed in the Original and Amended Lead-In (Arms A and B) Cohorts predose on Day 1 (Cycles 3-13) and in the Randomized Cohort (Sunitinib + Erlotinib treatment group only) predose on Day 1 of Cycles 1-18.

Ctrough = plasma concentration of sunitinib prior to study drug administration. Dose correction was made to the initial intended dose in Cycle 1. Assessed in the Original Cohort predose on Day 15 (Cycle 1, Time Zero) and Day 1 (Cycle 3), in the Amended Lead-In Cohort (Arms A and B) predose on Day 1 (Cycle 3) and in the Randomized Cohort (Sunitinib + Erlotinib treatment group only) predose on Day 1 of Cycles 1-18.

Ctrough = plasma concentration of SU-012662 prior to study drug administration. Dose correction was made to the initial intended dose in Cycle 1. Assessed in the Original and Amended Lead-In (Arms A and B) Cohorts predose on Day 1 (Cycles 3-13) and in the Randomized Cohort (Sunitinib + Erlotinib treatment group only) predose on Day 1 of Cycles 1-18.

Ctrough = plasma concentration of SU-012662 prior to study drug administration. Dose correction was made to the initial intended dose in Cycle 1. Assessed in the Original Cohort predose on Day 15 (Cycle 1, Time Zero) and Day 1 (Cycle 3), in the Amended Lead-In Cohort (Arms A and B) predose on Day 1 (Cycle 3) and in the Randomized Cohort (Sunitinib + Erlotinib treatment group only) predose on Day 1 of Cycles 1-18.

Percentage of participants with EGFR expression by IHC using a 0% cutoff; Reported as positive, negative, or unmeasured (where positive was greater than 0% of cells demonstrating membranous staining for EGFR). Correlative analysis of EGFR expression was conducted using tumor biopsy samples collected at the time of initial diagnosis (preferred) or at the time of most recent recurrence/progression, although any time was acceptable.

PFS defined as time in weeks from date of randomization to date of first documentation of PD or death on-study due to any cause, whichever occurred first, in the following subgroups: positive, negative, or unmeasured EGFR expression. EGFR expression was analyzed using a 0% cutoff where positive was greater than 0% of cells demonstrating membranous staining for EGFR. PFS calculated as (first event date minus randomization date plus 1) divided by 7.02.

Percentage of participants with EGFR Expression by IHC using a 10% cutoff; Reported as positive (positive values were defined as being greater than 10% of cells demonstrating membranous staining for EGFR), negative, or unmeasured. Correlative analysis of EGFR expression was conducted using tumor biopsy samples collected at the time of initial diagnosis (preferred) or at the time of most recent recurrence/progression, although any time was acceptable.

PFS defined as time in weeks from date of randomization to date of first documentation of PD or death on-study due to any cause, whichever occurred first, in the following subgroups: positive, negative, or unmeasured EGFR expression. EGFR expression was analyzed using a 10% cutoff where positive was greater than 10% of cells demonstrating membranous staining for EGFR. PFS calculated as (first event date minus randomization date plus 1) divided by 7.02.

The number of copies corresponding to exon 19 of the EGFR gene was determined by real-time quantitative polymerase chain reaction (PCR). The percentage of participants with EGFR Gene Copy Number Increase (defined as greater than 4 copies) was determined using deoxyribonucleic acid (DNA) from tumor biopsy samples collected at the time of initial diagnosis (preferred) or at the time of most recent recurrence/progression, although any time was acceptable. Reported as yes, no or unmeasured.

PFS, defined as time from date of randomization to the date of the first documentation of PD or death on-study due to any cause, whichever occurred first, in subgroups that were defined by EGFR gene copy number increase (reported as yes, no, or unmeasured). The number of copies corresponding to exon 19 of the EGFR gene was determined and an increase was defined as greater than 4 copies. PFS was calculated as (first event date minus randomization date plus 1)/7.02.

The percentage of participants with EGFR gene amplification (defined as greater than 15) was determined and reported as yes, no, or unmeasured. Correlative analysis of EGFR gene amplification was conducted using tumor biopsy samples collected at the time of initial diagnosis (preferred) or at the time of most recent recurrence/progression, although any time was acceptable.

PFS, defined as time from date of randomization to date of first documentation of PD or death on-study due to any cause, whichever occurred first, in subgroups that were defined by EGFR gene amplification (defined as greater than 15) and reported as no or unmeasured. PFS was calculated as (first event date minus randomization date plus 1) divided by 7.02.

Mutations in exons 18 through 21 of the EGFR gene were analyzed by high-performance liquid chromatography using DNA from tumor biopsy samples collected at the time of initial diagnosis (preferred) or at the time of most recent recurrence/progression, although any time was acceptable. The percentage of participants with EGFR mutations categorized as mutated, wild type or indeterminate was reported.

PFS, defined as time from date of randomization to date of first documentation of PD or to death on-study due to any cause, whichever occurred first, in subgroups that were defined by EGFR gene mutation (reported as mutated, wild type, or indeterminate). PFS was calculated as (first event date minus randomization date plus 1) divided by 7.02.

Mutations in exons 2-3 of the KRAS gene (including codons 12, 13, and 61) were analyzed by high-performance liquid chromatography using DNA from tumor biopsy samples collected at the time of initial diagnosis (preferred) or at the time of most recent recurrence/progression, although any time was acceptable. The percentage of participants with KRAS mutations categorized as mutated, wild type or indeterminate was reported.

PFS, defined as time from date of randomization to date of first documentation of PD or death on-study due to any cause, whichever occurred first, in subgroups that were defined by KRAS gene mutation (reported as mutated, wild type, or indeterminate). PFS was calculated as (first event date minus randomization date plus 1) divided by 7.02.

Blood samples were collected at baseline for multiplex reverse transcription (RT) analysis of genes expressing proteins that are targets of sunitinib or involved in angiogenesis or tumor growth to determine expression levels. Percentage of participants with germline VEGFR2 single nucleotide polymorphisms (SNPs) was reported for the following genotype frequencies: homozygous C alleles (C/C), T alleles (T/T), G alleles (G/G), or A alleles (A/A), and the following heterozygous genotypes C/T, G/T, T/A, and G/A.

PFS, defined as time from date of randomization to date of first documentation of PD or death on-study due to any cause, whichever occurred first, in subgroups that were defined by VEGFR2 polymorphisms. PFS was calculated as (first event date minus randomization date plus 1) divided by 7.02.

OS, defined as time from date of randomization to date of death due to any cause, in subgroups that were defined by VEGFR2 polymorphisms. OS was calculated as (date of death minus date of randomization plus 1) divided by 30.4.

Blood samples were collected at baseline for multiplex RT analysis of genes expressing proteins that are targets of sunitinib or involved in angiogenesis or tumor growth to determine expression levels. Percentage of participants with germline PDGFRB SNPs was reported for the following genotype frequencies: homozygous C alleles (C/C), T alleles (T/T), G alleles (G/G), or A alleles (A/A), and the following heterozygous genotypes C/T, A/T, A/G, T/C, T/G, G/C, C/A and G/A.

PFS, defined as time from date of randomization to date of first documentation of PD or death on-study due to any cause, whichever occurred first, in subgroups that were defined by PDGFRB polymorphisms. PFS was calculated as (first event date minus randomization date plus 1) divided by 7.02.

OS, defined as time from date of randomization to date of death due to any cause, in subgroups that were defined by PDGFRB polymorphisms. OS was calculated as (date of death minus date of randomization plus 1) divided by 30.4.

Percentage of participants with VEGFR mutations in DNA from tumor samples collected at the time of initial diagnosis (preferred) or at the time of most recent recurrence/progression, although any time was acceptable.

A blood sample (6 mL) was collected before on-study treatment and was used to isolate DNA. These samples were not anonymized. Correlation was investigated by the percentage of participants with anemia (based on hemoglobin count), neutropenia (based on neutrophil count) and thrombocytopenia (based on platelet count) endpoints and genetic variation as measured by c-KIT, FLT-3, and c-FMS was to be analyzed.

Includes colony-stimulating factor 1 receptor (CSF-1R), PDGFRalpha, PDGFRbeta, vascular endothelial growth factor (VEGF), VEGF C (VEGF-C), VEGF receptor 1 (VEGFR1), VEGF receptor 2 (VEGFR2), VEGF receptor 3 (VEGFR3), fibroblast growth factor (FGF), FLT-3, KIT (stem cell factor receptor), and RET (rearranged during transfection). Correlative analysis was conducted using tumor biopsy samples collected at the time of initial diagnosis (preferred) or at the time of most recent recurrence/progression, although any time was acceptable.

PFS, defined as time from date of randomization to date of first documentation of PD or death on-study due to any cause, whichever occurred first, in subgroups that were defined by RNA Gene expression (CSF-1R, PDGFRalpha, PDGFRbeta, VEGF, VEGF-C, VEGFR1, VEGFR2, VEGFR3, FGF, FLT-3, KIT, and RET). PFS was calculated as (first event date minus randomization date plus 1) divided by 7.02.

EORTC QLQ-C30: self-administered questionnaire assessing global health status/quality of life (QoL), functional domains (physical, role, cognitive, emotional, and social), symptom scales/items (fatigue, pain, nausea and vomiting, dyspnea, insomnia, loss of appetite, constipation, and diarrhea), and financial difficulties. Recall period: past week; response range: not at all (1) to very much (4); global/QoL range: very poor (1) to excellent (7). Scale score range: 0 to 100. Higher functional/global QoL score = better functioning and higher symptom score = greater degree of symptoms.