This is a single-center, single arm, open-label phase II study evaluating the safety, anti-tumor effect, and immunogenicity of neoadjuvant Dupixent given prior to radical prostatectomy.
This is a single-center, single arm, open-label phase II study evaluating the safety, anti-tumor effect, and immunogenicity of neoadjuvant Dupixent given prior to radical prostatectomy in men with high-risk localized prostate cancer (this trial will enroll men with at least high risk prostate cancer defined by NCCN Guidelines Version 2.2017 = clinical stage ≥T3a or PSA \>20 ng/mL or Gleason score ≥8). Patients will be recruited from the outpatient Urology clinic. Men will be treated with dupilumab 600 mg subcutaneously (SQ) on day 1, and then 300 mg SQ on days 8,15, 22, 29, 36, 43. They will then undergo surgery on day 57. 14 days after the last dose of Dupixent, prostate glands will be harvested at the time of radical prostatectomy, and prostate tissue will be examined for the secondary endpoints. Follow-up evaluation for adverse events will occur 30 days and 60 days after surgery. Patients will then be followed by their urologists according to standard institutional practices, but will require PSA evaluations every 3 (±1) months during year 1 and every 6 (±2) months during years 2-3.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
7
dupilumab 600 mg SQ on day 1, and then 300 mg SQ on days 8,15, 22, 29, 36, 43.
Johns Hopkins Sidney Kimmel Comprehensive Cancer Center
Baltimore, Maryland, United States
Change in M2-TAM Infiltration From Baseline
Change in M2-TAM infiltration (number of macrophages / cell nuclei per high power field \[hpf\]) measured in pre- dupilumab biopsy to M2-TAM infiltration measured in post-dupilumab specimen collected at time of radical prostatectomy (up to 59 days post-intervention). Degree of TAM infiltration will be analyzed using immunohistochemical staining for CD206. It is hypothesized that a positive value will be associated with better outcome and a negative value will reflect a worse outcome.
Time frame: change from baseline to up to 59 days post-intervention
Safety as Assessed by Number of Participants Experiencing Adverse Events
Adverse events defined by NCI Common Toxicity Criteria version 4.0 (NCI CTCAE v4.0)
Time frame: up to 59 days post-intervention
Feasibility as Assessed by Number of Participants Who Have an Average Blood Loss in Excess of 2500 mL During Prostatectomy
Time frame: up to 59 days post-intervention
Feasibility as Assessed by Number of Participants With Average Prostatectomy Operative Time in Excess of 3.5 Hours
Time frame: up to 59 days post-intervention
Feasibility as Assessed by Number of Participants With Average Hospital Stay in Excess of 4 Days Post-prostatectomy
Time frame: up to 59 days post-intervention
CD8+ T-cell Infiltration in Post-treatment Prostate Glands
mean CD4+ T-cell staining percentage and CD4+/Treg ratio in harvested tumor tissue collected from prostatectomy specimen
Time frame: up to 59 days post-intervention
CD4+ T-cell and Treg Infiltration in Post-treatment Prostate Glands
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mean CD4+ T-cell staining percentage and CD4+/Treg ratio in harvested tumor tissue collected from prostatectomy specimen
Time frame: up to 59 days post-intervention
Expression of Apoptosis Marker (Annexin V) in Post-treatment Prostate Tumor Specimen as Measured by Mean Staining Percentage in Tumor Tissue
Mean staining percentage of Annexin V in tumor tissue, using TUNEL (Terminal deoxynucleotidyl transferase dUTP nick end labeling) staining.
Time frame: up to 59 days post-intervention
Expression of Cell Proliferation in Post-treatment Prostate Tumor Specimen as Measured by Mean Staining Percentage of Ki-67 in Tumor Tissue
Time frame: up to 59 days post-intervention
Proportion of Participants With Pathological Complete Response
Pathological response is defined as the absence of tumor identification by study pathologist on standard histological analysis of resected prostate specimens.
Time frame: 1 month post-prostatectomy
Proportion of Participants Who Achieve an Undetectable PSA at 2 Months Post-prostatectomy
Proportion of participants with PSA \<0.1ng/mL by 2 months after prostatectomy
Time frame: 2 months post-prostatectomy