To seek preliminary evidence of antitumor activity (progression free survival) of Erlotinib in combination with standard adjuvant chemoradiation and chemotherapy in patients with resected adenocarcinoma of the pancreas.

This study is a phase II trial of erlotinib in combination with chemoradiation in patients with stage I/II adenocarcinoma of the pancreas who are candidates for adjuvant chemoradiation.

This study is a phase II trial of erlotinib in combination with chemoradiation in patients with resected stage I/II adenocarcinoma of the pancreas who are candidates for adjuvant chemoradiation. Eligible patients will receive adjuvant treatment with erlotinib 100 mg plus Capecitabine 800 mg/m2 PO BID (5 days on/ 2 days off regimen) and External Beam Radiation Therapy (EBRT) at doses of 50.4 Gy in 28 fractions after pancreatectomy (Dosing for capecitabine and erlotinib was amended after considering the toxicity profile of the first 6 patients). Approximately 4-8 weeks after the conclusion of chemoradiation, it is recommended patients will continue treatment with 4 cycles of gemcitabine 1000 mg/m2 days 1, 8, and 15 every 28 days plus daily erlotinib 100 mg.

Eligible patients will receive adjuvant treatment with erlotinib 100 mg plus Capecitabine 800 mg/m2 PO BID (5 days on/ 2 days off) and External Beam Radiation Therapy (EBRT) to the tumor bed plus adjacent lymph nodes at doses of 50.4 Gy in 28 fractions after surgery. For patients with close or positive margins after resection, they will be able to receive 54.0 Gy over 30 fractions. Approximately 4-8 weeks after the conclusion of chemoradiation, it is recommended patients will continue treatment with 4 cycles of gemcitabine 1000 mg/m2 days 1, 8, and 15 every 28 days plus erlotinib 100 mg/daily.

Inclusion criteria

1. Resection of a stage I/II pancreatic adenocarcinoma of the pancreas (R0/R1) and a candidate to receive postoperative adjuvant chemoradiation. R2 (laparoscopic resection) based on the surgeons operative note will be excluded from the study.
2. Aged 18 years or older.
3. ECOG performance status < 1.
4. The effects of Erlotinib and Capecitabine on the developing human fetus at the recommended therapeutic dose are unknown. For this reason, women of child-bearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control) prior to study entry and for the duration of study participation. Should a woman become pregnant or suspect she is pregnant while participating in this study, she should inform her treating physician immediately.
5. Patients must have normal organ and marrow function.
6. Provision of written informed consent
7. Patients must have a working knowledge of English in order to complete the quality of life questionnaires. Patients that do not meet this requirement will be exempt from the QoL assessment, but remain eligible for all other components of the study.

Exclusion criteria

1. Known severe hypersensitivity to Erlotinib any of the excipient of this product. Hypersensitivity to Capecitabine, doxifluridine, or 5-FU.
2. Other coexisting malignancies or malignancies diagnosed within the last 5 years, with the exception of basal cell carcinoma, non-invasive early stage bladder cancer (\

Individual participant data is not intended to be shared with other researchers, although summary of findings will be made available. In the event individual participant data is requested as support for the summary data, this data will be made available following confirmation that all patient identifiers have been "de-identified"

Adverse Event data was collected for approximately 3 years.