Inclusion Criteria:

• Provide written informed consent and be between the ages of 18 and 79, inclusive.
• Have unresectable, locally advanced adenocarcinoma of the pancreas proven by biopsy or cytology.
• Have a target tumor ≤ 6 cm in diameter that is accessible for intratumoral administration by PTA or EUS guidance as determined by the radiologist/gastroenterologist performing the PTA/EUS injection.
• Have a Karnofsky performance status of ≥ 70%.
• Have a life expectancy of ≥ 3 months.
• If female and of child-bearing potential, have a negative serum pregnancy test during screening.
• Agree to use of a barrier method of contraception if sexually active (both men and women) from the time of administration of the first treatment and for at least 8 weeks after treatment.
• Have serum creatinine < 2.0 mg/dL, AST and ALT ≥ 2.5 x ULN, PT, PPT, and PT/INR within normal limits, absolute neutrophil count (ANC) > 1,500 x 103 cells/mL, platelets ≥ 100,000/mL, and hemoglobin ≥ 10 mg/dL.
• Have a biopsy specimen that is positive for H19 expression (grade 2 or greater staining determined by a pathologist).
• Have screening procedures completed within 4 weeks of starting treatment.
• No other malignancy present that would interfere with the current intervention.
• No plans to receive concurrent chemotherapy, hormonal therapy, radiotherapy, immunotherapy or any other type of therapy for treatment of cancer while on this protocol.
• Have measurable disease.

Exclusion Criteria:

• Have distant metastatic spread (such as liver or lung metastases), peritoneal spread or malignant ascites.
• Have prior radiation therapy for pancreatic cancer or radiation to the area of the target tumor field.
• Endocrine tumors or lymphoma of the pancreas.
• Have clinically significant pancreatitis within 12 weeks of treatment.
• If female, be breast feeding.
• Have a medical condition contraindicated for both percutaneous- and endoscopic- guided delivery or any intercurrent medical illness or other medical condition that would in the judgment of the investigator compromise patient safety or the objectives of the study.
• Have a history of coagulopathy.
• Have participated in any therapeutic research study within the last 4 weeks.