Prostate Cancer
Conditions
Brief summary
Disease progression after definitive therapy for prostate cancer is a major source of morbidity and mortality. Adrenergic/sympathetic innervation of the prostate is essential for prostate cancer progression, and abrogation of these signals by blocking adrenergic innervation halts disease progression. Long-acting neuraxial block of the sympathetic nerves that innervate the pelvis with dehydrated alcohol (\>98% Ethanol) is a safe and effective tool in the treatment of chronic pelvic pain and cancer- induced pelvic pain. Furthermore, ultrasound guided periprostatic neuraxial block at the time of prostate biopsy with short-acting lidocaine is standard of care. Herein the research team proposes to administer a long-acting periprostatic neuraxial block with dehydrated alcohol and lidocaine under trans rectal ultrasound guidance in patients with high-risk clinical features for prostate cancer at the time of prostate biopsy.
Interventions
Long-acting neuraxial blockade at the time of prostate biopsy by periprostatic injection of Dehydrated alcohol.
By periprostatic injection, 2mL
Sponsors
Study design
Eligibility
Inclusion criteria
* PSA \>10 * PSAD \>0.15 * PI-RADS 5 lesion on MRI * Karnofsky performance status \>80 * Ability to understand and the willingness to sign a written informed consent.
Exclusion criteria
* Prior or concomitant treatment for prostate cancer, including radiation therapy, focal therapy, cryo therapy, androgen deprivation therapy. * Imaging or clinical evidence of metastatic disease. * PSA \> 100ng/mL
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Dose-Limiting Toxicity (DLT) | At week 2 | The DLT will be measured in the two week post administration period. The target toxicity rate is assumed as 25% considering immediate post-administration toxicity. This rate will not account for the delayed onset toxicities. |
| Maximally Tolerated Dose (MTD) | At week 2 | The MTD will be defined as the dose at which the isotonic estimate of the toxicity rate is closest to the target toxicity rate of 25%. The MTD will be used as a recommended dose for prospective Phase II study in future |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Time to biochemical recurrence | at month 6 and at year 2 | Absence or presence of any evidence of biochemical recurrence at two years after definitive treatment for prostate cancer. |
| Response Rate | at week 8 | Evidence of response supported by either histologic markers of treatment response, evidence based on difference in molecular proliferation markers between PBx and prostatectomy specimen. |
| Tumor immunogenicity | at week 8 | Evidence based on tumor immunogenicity as measured by PD1/PDL-1 expression by immunohistochemistry on final pathology. |
| Degree of neural inhibition | at week 8 | Histological quantification of adrenergic nerve density by tyrosine hydroxylase positive nerve staining |
Countries
United States