Study Of PF-00562271, Including Patients With Pancreatic, Head And Neck, Prostatic Neoplasms

At least possibly attributable to study treatment (Tx): Grade (Gr) 4 neutropenia (absolute neutrophil count [ANC] <500 cells/mm^3) for >7 days or Gr 3 febrile neutropenia (ANC <1000/mm^3, fever ≥38 degrees Celsius; Gr 4 thrombocytopenia (platelets <25,000 cells/mm^3); Gr ≥3 non-hematologic toxicity despite adequate medical intervention; Gr ≥3 confirmed prolonged QTc interval (>500 milliseconds [msec]); confirmed cardiac troponin I ≥99 percentile of reference range; Tx related toxicities with failure to receive ≥18 days Tx in 21-day cycle or inability to resume current dose level ≤14 days.

Metabolic response demonstrated in any tumor reduction of ≥15% in tumor FDG standardized uptake value (SUV) in Cycle 1; based on the recommendations of the European Organization for Research and Treatment of Cancer (EORTC) PET Study Group. Participant must have had a baseline PET with at least 1 tumor lesion demonstrating an FDG SUV of ≥5.

Area under the serum concentration time-curve from zero to the last measured concentration; nanograms multiplied by hours per milliliters (ng*hr/mL).

AUCinf = area under the serum concentration versus time curve from time zero (pre-dose) to extrapolated infinite time (0 - ∞). It is obtained from AUC (0 - t) plus AUC (t - ∞).

Serum decay half-life is the time measured for the serum concentration to decrease by one half.

Clearance of a drug is a measure of the rate at which a drug is metabolized or eliminated by normal biological processes. Clearance obtained after oral dose (apparent oral clearance) is influenced by the fraction of the dose absorbed.

Rac was the ratio of the Day 14 AUC0-tau (0 hour to last dose interval) and AUC during the corresponding time period after the lead-in dose (AUCtau C1.D14/AUCtau C0.D1).

Area under the serum concentration time-curve from zero to the last measured concentration.

AUCinf = area under the serum concentration versus time curve from time zero (pre-dose) to extrapolated infinite time (0 - ∞). It is obtained from AUC (0 - t) plus AUC (t - ∞).

Serum decay half-life is the time measured for the serum concentration to decrease by one half.

Clearance of a drug is a measure of the rate at which a drug is metabolized or eliminated by normal biological processes. Clearance obtained after oral dose (apparent oral clearance) is influenced by the fraction of the dose absorbed.

Best response recorded from start of treatment (Tx) until disease progression. Complete response: disappearance of all target lesions. Partial response: ≥30% decrease in sum of longest dimensions (LD) of target lesions referencing baseline sum LD. Progressive disease: ≥20% increase in sum LD of target lesions from smallest sum LD recorded since Tx start or appearance of ≥1 new lesions. Stable disease: neither sufficient shrinkage to=PR nor sufficient increase to=PD during first 6 weeks after Tx start referencing smallest sum LD since Tx start.

Analysis of tumor specimens to assess FAK-related biomarkers for potential predictors of response markers to PF-00562271; FAK is overexpressed in a variety of human cancers. For dose escalation cohorts and expansion cohort E1, pre-treatment tumor biopsy collected between Day -28 and first PF-00562271 dose and on-treatment tumor biopsy collected 2 to 8 hours after PF-00562271 dose during Cycle 1 between day 12 and 16. In addition, up to 10 participants in cohort E2 were to be enrolled for serial biopsies.

Analysis of tumor specimens to assess FAK-related biomarkers for potential predictors of response markers to PF-00562271; MAPK regulates activities of several transcription factors. A defect in MAPK pathway leads to uncontrolled cell growth. For dose escalation cohorts and expansion cohort E1, pre-treatment tumor biopsy collected between Day -28 and first PF-00562271 dose and on-treatment tumor biopsy collected 2 to 8 hours after PF-00562271 dose during Cycle 1 between day 12 and 16. In addition, up to 10 participants in cohort E2 were to be enrolled for serial biopsies.

Analysis of tumor specimens to assess FAK-related biomarkers for potential predictors of response markers to PF-00562271; SRC proto-oncogenes are regulators of growth and differentiation of eukaryotic cells and are implicated in development of human tumors. For dose escalation cohorts and expansion cohort E1, pre-treatment tumor biopsy collected between Day -28 and first PF-00562271 dose; on-treatment tumor biopsy collected 2 to 8 hours after PF-00562271 dose during Cycle 1 between day 12 and 16. In addition, up to 10 participants in cohort E2 were to be enrolled for serial biopsies.

Analysis of tumor specimens to assess FAK-related biomarkers for potential predictors of response markers to PF-00562271; sequential activation of caspases plays a central role in the execution-phase of cell apoptosis. For dose escalation cohorts and expansion cohort E1, pre-treatment tumor biopsy collected between Day -28 and first PF-00562271 dose and on-treatment tumor biopsy collected 2 to 8 hours after PF-00562271 dose during Cycle 1 between day 12 and 16. In addition, up to 10 participants in cohort E2 were to be enrolled for serial biopsies.