CART-PSMA-TGFbetaRDN Cells in Treating Patients with Metastatic Castrate Resistant Prostate Cancer
This phase I trial studies the side effects and best dose of CART-PSMA-TGFbetaRDN cells in treating patients with castrate resistant prostate cancer that has spread to other places in the body. Biological therapies, such as CART-PSMA-TGFbetaRDN cells, use substances made from living organisms that may stimulate or suppress the immune system in different ways and stop tumor cells from growing.
Inclusion Criteria
- Metastatic castrate resistant prostate cancer
- >= 10% tumor cells expressing PSMA as demonstrated by immunohistochemistry analysis on fresh tissue
- Radiographic evidence of osseous metastatic disease and/or measurable, non-osseous metastatic disease (nodal or visceral)
- Eastern Cooperative Oncology Group (ECOG) performance status of 0 - 1
- Serum creatinine =< 1.5 mg/dl or creatinine clearance >= 60 cc/min
- Serum total bilirubin < 1.5 x upper limit of normal (ULN)
- Serum alanine aminotransferase (ALT)/aspartate aminotransferases (AST) < 2 x ULN
- Hemoglobin (Hgb) > 10 g/dl (within 4 weeks of study enrollment) * Subjects must not be transfusion dependent
- Platelet (PLT) > 100 k/ul (within 4 weeks of study enrollment) * Subjects must not be transfusion dependent
- Absolute neutrophil count (ANC) > 1.5 k/ul (within 4 weeks of study enrollment) * Subjects must not be transfusion dependent
- Evidence of progressive castrate resistant prostate adenocarcinoma, as defined by: * Castrate levels of testosterone (< 50 ng/ml) with or without the use of androgen-deprivation therapy AND * Evidence of one of the following measures of progressive disease in the 12 weeks preceding study enrollment: ** Soft tissue progression by Response Evaluation Criteria in Solid Tumors (RECIST) 1.1 criteria ** Osseous disease progression with 2 or more new lesions on bone scan (as per Prostate Cancer Clinical Trials Working Group 2 [PCWG2 criteria]) ** Increase in serum PSA of at least 25% and an absolute increase of 2 ng/ml or more from nadir (as per PCWG2 criteria)
- Prior therapy with at least one standard 17alpha lyase inhibitor or second-generation anti-androgen therapy for the treatment of metastatic castrate resistant prostate cancer
- Provides written informed consent
- Subjects of reproductive potential must agree to use acceptable birth control methods
Exclusion Criteria
- Prior treatment with an immune-based therapy for the treatment of prostate cancer, including cancer vaccine therapies (such as sipuleucelT, PROSTVAC), immune checkpoint inhibitors, radium-223 and immunoconjugate therapies
- History of an active non-curative non-prostate primary malignancy within the prior 5 years
- Subjects with a rising PSA, but who have never had radiologic evidence of metastatic disease (i.e. ‘biochemical recurrence’)
- Subjects who require the chronic use of systemic corticosteroid therapy
- Subjects who have received > 3 prior therapies for the treatment of castrate resistant prostate cancer (excluding luteinizing hormone-releasing hormone agonists or antagonists, or first generation anti-androgen therapies). This includes subjects who received taxotere in noncastrate setting
- Subjects with class III/IV cardiovascular disability according to the New York Heart Association Classification
- Subjects with symptomatic vertebral metastases affecting spinal cord function (as determined by clinical history, physical exam, or magnetic resonance imaging [MRI] imaging)
- History of active autoimmune disease requiring immunosuppressive therapy
- Patients with ongoing or active infection
- History of allergy or hypersensitivity to study product excipients (human serum albumin, dimethyl sulfoxide [DMSO], and dextran 40)
- Active hepatitis B, hepatitis C or human immunodeficiency virus (HIV) infection
Study sponsor and potential other locations can be found on ClinicalTrials.gov for NCT03089203.
PRIMARY OBJECTIVES:
I. Determine the safety and feasibility of intravenous administration of lentivirally transduced autologous PSMA-specific TGFb-resistant CAR T cells (PSMA-TGFbetaRDN autologous CAR T cells) with and without cyclophosphamide as lymphodepleting chemotherapy in patients with advanced castrate resistant prostate cancer.
SECONDARY OBJECTIVES:
I. Assess the clinical anti-tumor effect of CART-PSMA-TGFbetaRDN cells by standard criteria.
CORRELATIVE OBJECTIVES:
I. Determine the bioactivity (persistence and effector functionality) of CART-PSMA-TGFbetaRDN cells in peripheral blood.
II. Assess the feasibility of utilizing circulating tumor cells to determine the response to therapy.
III. Evaluate the potential to follow decreases in serum prostate specific antigen (PSA) as a surrogate biomarker of anti-tumor activity.
IV. Assess for tumor antigen immune escape.
V. Evaluate the development of anti-CAR immune responses (i.e. HAMA/HACA) favoring the rejection of CART-PSMA-TGFbetaRDN cells.
OUTLINE:
Patients receive CART-PSMA-TGFbetaRDN cells intravenously (IV) on day 0. Patients may also receive a single dose of cyclophosphamide IV 2-4 days prior to CART-PSMA-TGFbetaRDN infusion.
After completion of study treatment, patients are followed up at 1, 3, 7, 10, 14, 21, and 28 days, 2, 3, and 6 months, quarterly for 2 years, and then up to 15 years.
Trial PhasePhase I
Trial Typetreatment
Lead OrganizationUniversity of Pennsylvania/Abramson Cancer Center
Principal InvestigatorNaomi Susanne Balzer-Haas
- Primary IDUPCC 32816
- Secondary IDsNCI-2018-02115
- ClinicalTrials.gov IDNCT03089203