- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00006430
A Safety and Feasibility Study of Active Immunotherapy in Patients With Metastatic Prostate Carcinoma Using Autologous Dendritic Cells Pulsed With Antigen Encoded in Amplified Autologous Tumor RNA
Purpose: This protocol proposes a safety and feasibility trial in patients with metastatic prostate cancer (stages D1-D3) investigating the induction of antitumor immunity by administration of cultured autologous peripheral blood precursor derived dendritic cells (DC), transfected with mRNA amplified from autologous prostate tumor tissue. The feasibility and dose-limiting toxicity of administering escalating doses of tumor RNA transfected dendritic cells will be defined. As a secondary endpoint, the ability of tumor RNA transfected dendritic cells to induce tumor-specific immune responses will be evaluated. Finally, the anti-tumor effect based on PSA (biochemical) response criteria will be defined.
Background: Because prostate cancer is incurable when metastatic and conventional therapies do not offer a clear survival benefit, new therapeutic strategies are warranted. This study is based on the premise that clinically effective cell mediated immune responses against prostate tumors can be elicited by activation of tumor associated antigen specific T cells. Work performed by others and our group suggests that PSA, a protein expressed in virtually all prostate cancers, can serve as a widely expressed candidate antigen for prostate cancer immunotherapy. In particular, we have shown that cultured dendritic cells transfected with mRNA encoding PSA are remarkably effective in stimulating antigen specific immunity in vitro. Therefore, we hypothesize that administration of PSA RNA transfected DC will lead to detectable levels of PSA specific CTL in the peripheral blood of patients with PSA expressing metastatic prostate cancer. It is hoped that these T cell responses also have clinical antitumor activity.
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Methods: Patients will undergo percutaneous needle biopsies from either primary or metastatic sites to obtain tumor tissue. Patients in whom sufficient tumor mRNA has been amplified by PCR to transfect the assigned dendritic cell dose will undergo leukapheresis and peripheral blood mononuclear cells will be cultured in vitro for 7 days with GM-CSF and IL-4 to generate precursor derived dendritic cells. Dendritic cells will then be cryopreserved for later use. On the day the patient returns to receive his infusion (weeks 0, 2, and 4) the dendritic cells will be thawed, reconstituted, and transfected with amplified total tumor mRNA. Patients will receive a total of 3 treatments consisting of combined I.V. and I.D. injections, each on study week 0, 2, and 4. Repeat leukapheresis will be performed 2 weeks after the last dose to determine immune function. PSA levels will be measured prior to the start of treatment and 2 weeks following the last infusion. Patients who do not receive therapy due to a failure to produce sufficient RNA or dendritic cells will be replaced in order to assess toxicity.
Data Analysis: 1. To determine the short and long term toxicities associated with administration of tumor RNA dendritic cells in patients with metastatic prostate cancer. 2. To determine feasibility of dendritic cell vaccine generation according to the proportion of patients for whom sufficient cells are generated to provide treatment. 3. To determine the cellular immune response to intravenous infusion of tumor RNA dendritic cells. 4. To measure the PSA response of patients with metastatic prostate cancer to intravenous infusion of tumor RNA dendritic cells.
Study Type
Phase
- Phase 1
Contacts and Locations
Study Locations
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North Carolina
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Durham, North Carolina, United States, 27710
- Duke University Medical Center
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- The patient has a histologic or clinically confirmed prostate adenocarcinoma (Stage D1-D3 metastatic with regional lymphatic, bone, visceral, or soft tissue metastases). (Transitional cell and small cell carcinomas of prostate origin are excluded.)
- The patient has a karnofsky performance status greater than or equal to 70%.
- Estimated life expectancy > 6 months
- The patient has adequate hematologic function with: WBC>=3000mm3, Hemoglobin>=9mg/dl, Platelets>=100,000/mm3
- The patient has adequate renal and hepatic function with: serum creatinine < 2.5mg/dl bilirubin < 2.0 mg/dl
- The patient has adequate coagulation parameters with: PT = 11.3-13.3 sec PTT = 20.1-32.9 sec
- For patients who receive medical gonadal androgen suppression, the patient may continue hormonally ablative therapy with LHRH analogues only (i.e. Gosereline or Leuprolide). Testosterone level must be <50 mg/l.
- For patients who receive oral nonsteroidal antiandrogen therapy (i.e.flutamide or bicalutamide) and experience a rising PSA: a 4 week period of observation must be completed following discontinuation of the nonsteroidal antiandrogen prior to entry.
- The patient has the ability to understand and provide signed inform consent that fulfills Institutional Review Board guidelines.
- The patient has the ability to return to Duke University Medical Center for adequate follow-up as required by this protocol.
Exclusion Criteria:
- The patient is receiving concurrent chemotherapy, radiation therapy, or immunotherapy. There must be at least 4 weeks (12 weeks if prior therapy included 89-Strontium) between any prior therapy and study entry. Patients must have recovered from all acute toxicities from prior treatment.
- The patient has previously irradiated or new CNS (central nervous system) metastases. (Pre-enrollment head CT is not required if not indicated by clinical signs or symptoms.)
- The patient has a history of autoimmune disease such as, but not restricted to, inflammatory bowel disease, systemic lupus erythematosus, ankylosing spondylitis, scleroderma, or multiple sclerosis.
- The patient has a serious intercurrent chronic or acute illness such as pulmonary (asthma or COPD) or cardiac (NYHA class III or IV) or hepatic disease or other illness considered by the P.I. to constitute an unwarranted high risk for investigational drug treatment.
- The patient has a serious intercurrent chronic or acute illness such as pulmonary (asthma or COPD) or cardiac (NYHA class III or IV) or hepatic disease or other illness considered by the P.I. to constitute an unwarranted high risk for investigational drug treatment.
- The patient has a medical or psychological impediment to probable compliance with the protocol.
- The patient has a concurrent second malignancy other than non-melanoma skin cancer, or controlled superficial bladder cancer.
- The patient has an active acute or chronic infection, including symptomatic urinary tract infection, HIV, or viral hepatitis.
- The patient is receiving oral or steroid therapy (or other immunosuppressive agents such as azathioprine or cyclosporine A). There must be 6 weeks between discontinuation of any steroid therapy and study enrollment.
- The patient has inadequate peripheral vein access to perform leukapheresis.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
Collaborators and Investigators
Collaborators
Investigators
- Principal Investigator: Johannes Vieweg, M.D., Duke University
Study record dates
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- NCRR-M01RR00030-0177
- M01RR000030 (U.S. NIH Grant/Contract)
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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