Phase I/II Intratumoral DC Immunotherapy With Gemcitabine & XRT in Unresectable Pancreatic Cancer

A Phase I/II Trial of Intratumoral Dendritic Cell Immunotherapy in Combination With Gemcitabine and Stereotactic Radiosurgery in Unresectable Pancreatic Cancer

To determine the safety, feasibility and appropriate dendritic cell dose to vaccinate patients with pancreas cancer

Study Overview

• Status: Completed
• Conditions: Pancreatic Cancer
• Intervention / Treatment: Drug: Gemcitabine; Procedure: Dendritic Cell Immunotherapy

• Study Type: Interventional
• Enrollment (Actual): 2
• Phase: Phase 1

Contacts and Locations

Study Locations

• United States
  • California
    • Stanford, California, United States, 94305
      • Stanford University School of Medicine

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:1. Patients must have histologically or cytologically confirmed adenocarcinoma of the pancreas. The site of the primary lesion should be confirmed endoscopically, radiologically, or surgically to be in the pancreas.

2. Patients must be deemed unresectable due to involvement of critical vasculature, adjacent organ invasion, presence of metastasis, or other medical condition making surgical resection unfavorable.

3. Patients must have a primary or metastatic lesion measurable in at least one dimension by RECIST criteria within 4 weeks prior to entry of study 4. More than 4 weeks must have elapsed from the time of major surgery or completion of the last dose of chemotherapy, radiation therapy, investigational therapy and patients must adequately recover from these effects.

5. Life expectancy of >3 months. 6. Karnofsky performance status >70%. 7. Patients must have normal organ and marrow functions as defined below: absolute neutrophil count >1,500/mm3 platelets >70,000/mm3 total bilirubin <1.5 mg/dL AST(SGOT)/ALT(SGPT) <2.5 X institutional upper limit of normal creatinine within normal institutional limits OR creatinine clearance >60mL/min/1.73 m2 for patients with creatinine levels above institutional normal.

albumin > 2.8 mg/dL 8. Patients must have adequate clotting function (platelet > 70k; INR<1.4; PTT<60).

9. Age >18 years. 10. The effects of DCs on the developing human fetus 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.

11. No history of autoimmune diseases. 12. Ability to understand the study protocol and a willingness to sign a written informed consent document. Exclusion Criteria:1. Patients receiving anticoagulation therapy.

2. Patients who have received prior gemcitabine or radiation therapy to the pancreatic bed 3. Patients receiving any other investigational agents. 4. Patients with known brain metastases will be excluded because of their poor prognosis and because they often develop progressive neurological dysfunction that would confound the evaluation of neurological and other adverse effects.

5. Uncontrolled concurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situation that would limit compliance with study requirements.

6. Patients who test positive for Hepatitis B virus, Hepatitis C virus or HIV.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Non-Randomized
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Gemcitabine	Drug: Gemcitabine; 1000 mg/m2 intravenoulsy once a week according to protocol schedule; Other Names: Gemzar; Procedure: Dendritic Cell Immunotherapy; The cells will be administered by intratumoral injection on 2 different days(at least 21 days apart); Other Names: DC Therapy; Dendritic Cell Therapy

What is the study measuring?

Primary Outcome Measures

Outcome Measure
o evaluate the immune response of patients treated with this regimen based on the presence and characterization of tumor-infiltrating white blood cells.
Phase II: To determine the overall response rate for this regimen as determined by radiographic criteria.
Phase I: To establish the maximally tolerated dose (MTD) and dose limiting toxicities (DLT) of intratumoral autologous dendritic cell vaccination in combination with gemcitabine and stereotactic radiosurgery
To determine the time to tumor progression for this regimen.

Collaborators and Investigators

• Sponsor: George Albert Fisher
• Investigators: Principal Investigator: Edgar G Engleman, Stanford University

Study record dates

Study Major Dates

• Study Start: October 1, 2005
• Primary Completion (Actual): April 1, 2008
• Study Completion (Actual): April 1, 2008

Study Registration Dates

• First Submitted: October 18, 2007
• First Submitted That Met QC Criteria: October 18, 2007
• First Posted (Estimate): October 22, 2007

Study Record Updates

• Last Update Posted (Estimate): November 8, 2012
• Last Update Submitted That Met QC Criteria: November 6, 2012
• Last Verified: August 1, 2012

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Digestive System Diseases; Neoplasms; Neoplasms by Site; Endocrine System Diseases; Digestive System Neoplasms; Endocrine Gland Neoplasms; Pancreatic Diseases; Pancreatic Neoplasms; Physiological Effects of Drugs; Molecular Mechanisms of Pharmacological Action; Anti-Infective Agents; Antiviral Agents; Enzyme Inhibitors; Antimetabolites, Antineoplastic; Antimetabolites; Antineoplastic Agents; Immunosuppressive Agents; Immunologic Factors; Gemcitabine
• Other Study ID Numbers: PANC0003; 95935 (Other Identifier: Stanford University alternate IRB Number); 1454 (Other Identifier: Stanford IRB)