Clinical Trials Logo

Clinical Trial Summary

Despite the low androgen receptor (AR) transcriptional activity of treatment-emergent small cell neuroendocrine prostate cancer, there is persistent AR expression observed in the majority of treatment-emergent small-cell neuroendocrine prostate cancer (t-SCNC) biopsies. This indicates that epigenetic dysregulation leads to reprogramming away from an AR-driven transcriptional program. Therefore, continuation of AR blockade in the form of apalutamide may provide additive benefit compared to immune checkpoint blockade alone. The investigators hypothesize that the combination of apalutamide plus cetrelimab will achieve a clinically significant composite response rate with sufficient durability of response in mCRPC patients with evidence of treatment-emergent small cell neuroendocrine prostate cancer


Clinical Trial Description

This is a phase 2, single arm, Simon's two-stage evaluation of the combination of apalutamide plus cetrelimab in patients with mCRPC and histologic and/or genomic evidence of treatment-emergent small cell neuroendocrine prostate cancer who have previously progressed on at least one prior androgen signaling inhibitor. Participants may continue study treatment from the time of treatment initiation until confirmed radiographic progressive disease (PD) per PCWG3 and RECIST 1.1 criteria, unequivocal clinical progression, unacceptable toxicity, or patient withdrawal, whichever occurs first, for a maximum of 24 months. PRIMARY OBJECTIVE: I. To determine the composite response rate as defined by achieving one or more of the following at any time point during study treatment: 1. Decline from baseline in serum PSA of >= 50% (PSA50), confirmed by repeat measurement >= 4 weeks later and/or 2. Objective response by RECIST 1.1 criteria SECONDARY OBJECTIVES: I. To determine safety of the combination as determined by CTCAE version 5.0. II. To determine the median radiographic progression-free survival by PCWG3 criteria. III. To determine the PSA50 and decline from baseline in serum PSA of >= 90% (PSA90) response proportion achieved. IV. To determine the median PSA progression-free survival. V. To determine the median overall survival. VI. To determine the objective response rate and median duration of response by RECIST 1.1 criteria. Patients will be followed up for safety evaluations 30 days and 100 days after treatment completion. Patients will be followed for overall survival every 90 days (+/- 30 days) from last dose of study treatment, until death, withdrawal of consent, or the end of the study, whichever occurs first. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT04926181
Study type Interventional
Source University of California, San Francisco
Contact
Status Active, not recruiting
Phase Phase 2
Start date March 16, 2022
Completion date February 28, 2026

See also
  Status Clinical Trial Phase
Recruiting NCT05540392 - An Acupuncture Study for Prostate Cancer Survivors With Urinary Issues Phase 1/Phase 2
Recruiting NCT05613023 - A Trial of 5 Fraction Prostate SBRT Versus 5 Fraction Prostate and Pelvic Nodal SBRT Phase 3
Recruiting NCT05156424 - A Comparison of Aerobic and Resistance Exercise to Counteract Treatment Side Effects in Men With Prostate Cancer Phase 1/Phase 2
Completed NCT03177759 - Living With Prostate Cancer (LPC)
Completed NCT01331083 - A Phase II Study of PX-866 in Patients With Recurrent or Metastatic Castration Resistant Prostate Cancer Phase 2
Recruiting NCT05540782 - A Study of Cognitive Health in Survivors of Prostate Cancer
Active, not recruiting NCT04742361 - Efficacy of [18F]PSMA-1007 PET/CT in Patients With Biochemial Recurrent Prostate Cancer Phase 3
Completed NCT04400656 - PROState Pathway Embedded Comparative Trial
Completed NCT02282644 - Individual Phenotype Analysis in Patients With Castration-Resistant Prostate Cancer With CellSearch® and Flow Cytometry N/A
Recruiting NCT06305832 - Salvage Radiotherapy Combined With Androgen Deprivation Therapy (ADT) With or Without Rezvilutamide in the Treatment of Biochemical Recurrence After Radical Prostatectomy for Prostate Cancer Phase 2
Recruiting NCT06037954 - A Study of Mental Health Care in People With Cancer N/A
Recruiting NCT05761093 - Patient and Physician Benefit/ Risk Preferences for Treatment of mPC in Hong Kong: a Discrete Choice Experiment
Completed NCT04838626 - Study of Diagnostic Performance of [18F]CTT1057 for PSMA-positive Tumors Detection Phase 2/Phase 3
Recruiting NCT03101176 - Multiparametric Ultrasound Imaging in Prostate Cancer N/A
Completed NCT03290417 - Correlative Analysis of the Genomics of Vitamin D and Omega-3 Fatty Acid Intake in Prostate Cancer N/A
Active, not recruiting NCT00341939 - Retrospective Analysis of a Drug-Metabolizing Genotype in Cancer Patients and Correlation With Pharmacokinetic and Pharmacodynamics Data
Completed NCT01497925 - Ph 1 Trial of ADI-PEG 20 Plus Docetaxel in Solid Tumors With Emphasis on Prostate Cancer and Non-Small Cell Lung Cancer Phase 1
Recruiting NCT03679819 - Single-center Trial for the Validation of High-resolution Transrectal Ultrasound (Exact Imaging Scanner ExactVu) for the Detection of Prostate Cancer
Completed NCT03554317 - COMbination of Bipolar Androgen Therapy and Nivolumab Phase 2
Completed NCT03271502 - Effect of Anesthesia on Optic Nerve Sheath Diameter in Patients Undergoing Robot-assisted Laparoscopic Prostatectomy N/A