Lapatinib and Capecitabine for Second Line Treatment of Pancreas Cancer

Patients are being asked to participate in this study who have locally advanced or metastatic pancreatic cancer (cancer of the pancreas that has spread to another part of the body) that has gotten worse after first-line chemotherapy.

The purpose of this study is to see if the drugs, Capecitabine and Lapatinib (two chemotherapy agents), prolong survival and improve quality of life as compared to supportive care alone.

Lapatinib in combination with a drug called capecitabine, has been approved by the Food and Drug Administration (FDA) for the treatment of metastatic breast cancer. It has not yet been approved to treat this type of cancer. Both of these drugs are pills.

This research is being done because it is not known if the combination of Capecitabine and Lapatinib is better than supportive care alone for pancreatic cancer.

This is an open-label single-arm Phase II trial for patients with metastatic pancreatic cancer who have failed first line Gemcitabine-based therapy. Patients will be treated with a combination of Capecitabine and Lapatinib, a dual tyrosine-kinase inhibitor of EGFR and HER-2.

Eligibility Criteria:
Inclusion Criteria:

* Histologically confirmed adenocarcinoma of the pancreas
* Prior failed 1st line gemcitabine therapy for metastatic disease or relapsed within six months of completion of gemcitabine adjuvant therapy
* Prior capecitabine or 5fu is allowed in the setting of radiation
* Must either be able to swallow or receive enteral nutrition via gastrostomy feeding tube
* Cardiac ejection fraction within institutional range of normal as measured by echocardiogram
* ECOG performance status 0-2
* Signed informed consent form
* Adequate hepatic, bone marrow, and renal function

Exclusion Criteria:

* Any prior treatment with lapatinib, or any anti-HER2 treatment or any anti-EGFR treatment
* Not recovered from adverse events to a toxicity grade \</= 1 due to prior chemotherapy
* More than one prior chemotherapy regimens
* Known brain metastases, uncontrolled seizure disorders, encephalitis, or multiple sclerosis
* HIV positive on antiretroviral therapy
* Pregnant or lactating
* History of allergic reactions attributed to compounds of similar chemical or biologic composition to lapatinib or capecitabine
* Malabsorption syndrome or uncontrolled inflammatory GI disease (Crohn's or ulcerative colitis)
* Known history of uncontrolled or symptomatic angina, arrhythmia, or congestive heart failure
* Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection or psychiatric illness/ social situations that would limit compliance with study requirements
* Known dihydropyrimidine dehydrogenase deficiency
* Concurrent malignancy unless the subject has been curatively treated and disease free for \>/= 2 years or the cancer was non-melanoma skin cancer or early cervical cancer.
* Creatinine clearance \< 30 mL/min
* Absolute neutrophil count \< 1500, platelets \< 75,000
* Transaminases \> 3.0 times the upper limit of normal, except in known hepatic metastasis, wherein they must be \< 5.0 times the upper limit of normal
* Total bilirubin \> 1.5 times the ULN, \> 2.5 x ULN if patient has Gilbert's syndrome