About this trial
This is a multi-center, open-label Phase 1/2 trial evaluating the safety and efficacy of AB-3028 in subjects with metastatic castration resistant prostate cancer (mCRPC).
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
At least 18 years of age at time of signing informed consent form.
Prior prostate cancer treatment with at least 1 novel androgen receptor pathway inhibitor (ARPI) therapy.
Measurable disease by RECIST 1.1 criteria, or evaluable disease via measurable PSA (≥ 1 ng/mL) per PCWG3 criteria.
Adequate organ functions.
Disqualifiers
Any prior systemic therapy for CRPC within 14 days prior to scheduled protocol required leukapheresis.
Central nervous system (CNS) metastatic disease, leptomeningeal disease, or cord compression.
Unwillingness to participate in an extended safety monitoring period.
Trial design
Single group
Treatments tested in this trial
AB-3028
Biological/Vaccineautologous T cell therapy
Treatment groups
Trial outcomes
Primary outcomes
Safety and tolerability of AB-3028
To assess safety and tolerability of increasing dose levels of AB-3028 in successive cohorts of subjects with metastatic CRPC to determine the maximum tolerated dose (MTD) and/or recommended Phase 2 dose (RP2D) of AB-3028
Other outcomes
Phase 1 (Dose escalation and Backfill Cohorts): incidence of adverse events
Defined as dose-limiting toxicities based on a Bayesian optimal interval (BOIN) design
Phase 2 (Cohort expansion): Objective response rate (ORR)
ORR based on Independent Review Committee (IRC) assessment, defined as the proportion of subjects who have achieved a best overall response of CR or PR according to RECIST v1.1
Sponsors and contacts
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