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Phase I/II Study of Immunization of Patients with Advanced Prostate Cancer with MHC Class I-Matched Allogeneic Human Prostate Carcinoma Cells Engineered to Secrete IL-2 and IFN-G (Summary Last Modified 05/2001)
Alternate Title Biological Therapy in Treating Patients With Prostate Cancer
Objectives I. Evaluate the safety of immunization with HLA class I-matched allogeneic human prostate carcinoma cells genetically engineered to secrete interleukin-2 and interferon gamma in patients with prostate carcinoma. II. Evaluate the antitumor effects of this treatment as assessed by post-therapy declines in PSA. III. Evaluate the induction of cellular and humoral immunity in vivo with this treatment. Entry Criteria Disease Characteristics:
Histologically confirmed prostate carcinoma
For Phase I: progressive, androgen-independent disease required, i.e.:
Elevated PSA despite castrate testosterone levels (below 50 ng/dl)
documented on 3 successive occasions
For Phase II: progressive disease after surgery or radiotherapy without
prior hormonal therapy also eligible
HLA-A1- or HLA-A2-positive disease required
Measurable or evaluable disease required
No active CNS metastases
Prior/Concurrent Therapy:
Recovered from toxicity of any prior therapy
Biologic therapy:
No prior autologous or allogeneic tumor vaccines
No concurrent other immunotherapy
Chemotherapy:
At least 4 weeks since chemotherapy
No concurrent chemotherapy
Endocrine therapy:
Flutamide discontinued and subsequent progression prior to entry
3 consecutive rising PSA values at least 2 weeks apart
No concurrent corticosteroids (except for life-threatening conditions)
Medical hormonal therapy to maintain castrate testosterone levels required
in the absence of orchiectomy
Radiotherapy:
At least 4 weeks since radiotherapy
No concurrent radiotherapy
Surgery:
Prior surgery allowed
Patient Characteristics:
Age:
18 and over
Performance status:
Karnofsky 70-100%
Life expectancy:
At least 12 weeks
Hematopoietic:
WBC greater than 3,000
Absolute lymphocytes greater than 1,000
Platelets greater than 100,000
Hb at least 9 g/dl
Hepatic:
Bilirubin less than 2.0 mg/dl OR
SGOT less than 2 x ULN
Renal:
Creatinine no greater than 2.0 mg/dl OR
Creatinine clearance at least 40 ml/min
Cardiovascular:
No NYHA class III/IV status
Pulmonary:
No severe debilitating pulmonary disease
Other:
No active infection requiring antibiotics
Not HIV positive
No history of hypersensitivity to interferon gamma or other vaccine
component
No serious intercurrent medical illness
Expected Enrollment 25Up to 12 patients will be entered on the Phase I study; accrual will continue to a total of 25 patients treated at the MTD (Phase II). Accrual is expected to require 2 years. Outline Tumor Cell Vaccine Therapy. Immunization with irradiated, MHC class I-matched allogeneic human prostate carcinoma cells, LNCaP cells, engineered to secrete approximately 58 ng/24 hr/million cells of interleukin-2 (IL-2) and approximately 0.72 U/24 hr/million cells of interferon gamma (IFN-G). Trial Lead Organizations Memorial Sloan-Kettering Cancer Center
Note: The purpose of most clinical trials listed in this database is to test new cancer treatments, or new methods of diagnosing, screening, or preventing cancer. Because all potentially harmful side effects are not known before a trial is conducted, dose and schedule modifications may be required for participants if they develop side effects from the treatment or test. The therapy or test described in this clinical trial is intended for use by clinical oncologists in carefully structured settings, and may not prove to be more effective than standard treatment. A responsible investigator associated with this clinical trial should be consulted before using this protocol. Back to Top |
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