An Observational Study of Erlotinib Plus Gemcitabine in Patients With Metastatic Pancreatic Cancer

Overall survival was defined as the time from the date of randomization to the date of death from any cause and was stratified by rash status. Participants with rash: rash = yes. Participants without rash: rash = no.

Reported is the total number of participants with rash as well as the number of participants with specific forms of rash, including paronychia, dry skin and papulopustulous eczema. Severity was reported according to Common Terminology Criteria for Adverse Events version 4.0 (CTC AE 4.0): Grade 1 = mild, asymptomatic or mild symptoms, clinical or diagnostic observations only, intervention not indicated; Grade 2 = moderate, minimal, local or noninvasive intervention indicated, limiting age-appropriate instrumental activities of daily living (ADL); Grade 3 = severe or medically significant but not immediately life-threatening; hospitalization or prolongation of hospitalization indicated; disabling; limiting self care ADL.

An adverse event is any untoward medical occurrence in a participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with the treatment. An adverse event can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of a pharmaceutical product, whether or not considered related to the pharmaceutical product. Preexisting conditions which worsen during a study are also considered as adverse events.

Reported is the total number of dose modifications/withdrawals for erlotinib.

Reported is the number of dose modifications/withdrawals for gemcitabine.

Reported is the number of days from first erlotinib treatment to first rash onset.

Overall survival was defined as the time from the date of randomization to the date of death from any cause and was stratified by ECOG-PS at baseline (0-1 versus 2). ECOG-PS 0 = Fully active, able to carry on all pre-disease performance without restriction. ECOG-PS 1 = Restricted in physically strenuous activity but ambulatory and able to carry out work of a light or sedentary nature, e.g., light house work, office work. ECOPG-PS 2 = Ambulatory and capable of all selfcare but unable to carry out any work activities. Up and about more than 50% of waking hours.

Best overall response was defined as complete response (CR) plus partial response (PR). Tumor evaluations were performed in accordance with daily routine practice.

Disease progression was defined in accordance with daily routine practice.

Participant questionnaire regarding satisfaction with the information about possible side effects. Assessment ranged from 1 (very satisfied) to 6 (not satisfied). Questionnaire scores were assessed at several time points during the study.

Participant questionnaire regarding satisfaction with the information about what one should do in case of side effects. Assessment ranged from 1 (very satisfied) to 6 (not satisfied). Questionnaire scores were assessed at several time points during the study.

Participant questionnaire regarding the actual side effects of therapy compared to what one expected before therapy. Assessment ranged from 1 (less than expected) to 6 (more than expected). Questionnaire scores were assessed at several time points during the study.

Participant assessment of life quality under therapy. Assessment ranged from 1 (very good) to 6 (very bad). Questionnaire scores were assessed at several time points during the study.