About this trial
This is a randomized, open-label, active-controlled, multicenter Phase III trial evaluating QLC5508 versus docetaxel in participants with metastatic castration-resistant prostate cancer (mCRPC) who have progressed after prior treatment with novel hormonal agents (NHAs). Participants are randomized to receive either QLC5508 monotherapy (experimental arm) or docetaxel (control arm). The primary objective is to compare the efficacy of QLC5508 versus docetaxel, as measured by radiographic progression-free survival (rPFS) assessed by an Independent Radiological Review Committee (IRC).
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Male, aged ≥18 years.
Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.
Life expectancy of at least 3 months.
Histologically or cytologically confirmed adenocarcinoma of the prostate without evidence of small-cell features.
Disqualifiers
1. Prior treatment with a B7-H3-targeted therapy, or with an antibody-drug conjugate (ADC) using a topoisomerase I inhibitor (TOP1i) as the payload, or with any TOP1i-class agent.
Trial design
Parallel
Treatments tested in this trial
QLC5508
Drug2.0 mg/kg Q2W, administered as an IV infusion until disease progression, unacceptable adverse events (AEs), or other cessation of treatment
Docetaxel
Drug75 mg/m2 Q3W, administered as an IV infusion (up to 10 cycles)
Treatment groups
Trial outcomes
Primary outcomes
Radiographic Progression Free Survival (rPFS)
Secondary outcomes
Overall Survival (OS)
Objective Response Rate (ORR)
Prostate-specific Antigen (PSA) Response Rate
Time to Prostate-specific Antigen (PSA) Progression
Locations
Sponsors and contacts
Click on the lead sponsor to view all of their trials.
This trial is not recruiting at the moment. You can still explore other options: