This dose-escalating phase I trial assesses for the first time the safety, the side effects and the harmlessness, as well as the therapeutical benefit of the new study drug UniCAR02-T-pPSMA in patients with progressive disease after standard systemic therapy in castration-resistant prostate cancers with positive PSMA marker. The UniCAR02-T-pPSMA drug is a combination of a cellular component (UniCAR02-T) with a recombinant antibody derivative (TMpPSMA) which together forms the active drug.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
16
Intravenous infusion for 3 days
Intravenous infusion for 3 days
Intravenous Infusion for 21 days
Intravenous infusion of single dose
Universitätsklinikum Ulm
Ulm, Baden-Wurttemberg, Germany
Universitätsklinikum Würzburg
Würzburg, Bavaria, Germany
Universitätsklinikum Dresden
Dresden, Saxony, Germany
Universitätsklinikum Hamburg-Eppendorf
Hamburg, Germany
Safety and tolerability
Incidence and intensity of adverse events graded according to CTCAE V5.0 with the exception of CRS and ICANS graded according to Lee et al. 2014 and Lee et al. 2019 respectively
Time frame: DLT period (infusion period of TMpPSMA + 7 days or + 14 days in patients with with myelosuppression)
Incidence of dose limiting toxicity (DLT)
DLT is defined as any adverse event at least possible related to TMpPSMA and/or UniCAR02-T
Time frame: DLT period (infusion period of TMpPSMA + 7 days or + 14 days in patients with with myelosuppression)
Maximum tolerated dose (MTD)
The dose for which the isotonic estimate of the DLT probability is closest to the target DLT probability of 0.2.
Time frame: DLT period (infusion period of TMpPSMA + 7 days or + 14 days in patients with with myelosuppression)
Recommended phase 2 dose (RP2D)
The RP2D will be determined based on MTD, all available efficacy data, and all available safety data, including information derived from additional treatment cycles.
Time frame: DLT period (infusion period of TMpPSMA + 7 days or + 14 days in patients with with myelosuppression)
Antitumor activity
Antitumor activity of UniCAR02-T-pPSMA at any time point according to irRECIST (immune-related) Response Evaluation Criteria in Solid Tumors): Complete remission (CR) and partial remission (PR), Objective response rate (ORR), Disease control rate (DCR), Best response rate, Duration of response (DOR),Progression free survival (PFS)
Time frame: DLT period (infusion period of TMpPSMA + 7 days or + 14 days in patients with with myelosuppression)
Prostate specific antigen (PSA) response
Time frame: DLT period (infusion period of TMpPSMA + 7 days or + 14 days in patients with with myelosuppression)
Overall Survival (OS)
Time frame: Until fifteen years after last UniCAR02-T administration
Influence on Circulating tumor cells (CTC)
Time frame: Before start of lymphodepletion therapy until 6 resp. 12 months after start of last TMpPSMA application
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