Pilot Clinical Trial of Neoadjuvant SGLT2 Inhibition in Localized Prostate Cancer
This is a pilot study of the tolerability and safety of neoadjuvant dapagliflozin for patients with unfavorable intermediate, high-risk, or very high-risk prostatic adenocarcinoma prior to radical prostatectomy. The primary hypothesis is that four weeks of daily dapagliflozin prior to surgery is well-tolerated and safe to use in this patient population. The investigators also hypothesize that dapagliflozin will be efficacious in resulting in tumor shrinkage on pre-operative imaging and will result in tumor necrosis at prostatectomy.
• Histologically or cytologically confirmed localized prostatic adenocarcinoma. Patients with primarily neuroendocrine/small cell histology will be excluded.
• Patients with prostatic adenocarcinoma in one of the following risk groups as defined by NCCN criteria:
‣ Unfavorable intermediate risk. Intermediate risk is defined as having no high-risk or very high-risk factors and having at least one of the following intermediate risk factors (IRFs):
• cT2b-cT2c
∙ Grade Group 2 or 3
∙ PSA 10-20 ng/mL
∙ Unfavorable intermediate risk additionally must have one or more of the following:
‣ 2 or 3 IRFs
⁃ Grade Group 3
⁃ ≥50% biopsy cores positive (eg, ≥ 6 of 12 cores) OR
⁃ High-risk, which is defined as not meeting very high-risk criteria and having at least one of the following high-risk features:
• cT3-cT4
∙ Grade Group 4 or 5
∙ PSA \> 20 ng/mL OR
⁃ Very high-risk, which is defined as meeting at least two of the following criteria:
• cT3-cT4
∙ Grade Group 4 or 5
∙ PSA \> 40 ng/mL\
• Willing and able to undergo prostate MRI at baseline, with a measurable prostate lesion present.
• Planning to undergo radical prostatectomy as primary treatment for localized prostate cancer.
• At least 18 years of age.
• ECOG performance status ≤ 1
• Adequate bone marrow and organ function as defined below:
‣ Leukocytes ≥ 3.0 K/cumm
⁃ Absolute neutrophil count ≥ 1.5 K/cumm
⁃ Platelets ≥ 100 K/cumm
⁃ Total bilirubin ≤ 1.5 x institutional upper limit of normal (IULN)
⁃ AST(SGOT)/ALT(SGPT) ≤ 3.0 x IULN
⁃ Estimated glomerular filtration rate eGFR ≥ 30 mL/min/1.73m\^2
• Agreement to adhere to Lifestyle Considerations throughout study duration
• Ability to understand and willingness to sign an IRB approved written informed consent document (or that of legally authorized representative, if applicable).