Neoplasms

Urinary Tract, Sexual Organs, and Pregnancy Conditions

All Conditions

Prostatic Neoplasms

Adenocarcinoma

Genital Neoplasms, Male

Urogenital Neoplasms

Genital Diseases

Genital Diseases, Male

Urogenital Diseases

Prostatic Diseases

Male Urogenital Diseases

Carcinoma

Neoplasms, Glandular and Epithelial

Neoplasms by Histologic Type

Antineoplastic Agents

All Drugs and Chemicals

Bone Density Conservation Agents

Bicalutamide

Raloxifene Hydrochloride

Androgens

Androgen Antagonists

Hormones

Hormone Antagonists

Estrogens

Estrogen Antagonists

Estrogen Receptor Antagonists

Estrogen Receptor Modulators

Selective Estrogen Receptor Modulators

Patients receive low dose raloxifene hydrochloride PO daily on days 1-30. Treatment repeats every 30 days for up to 2 courses in the absence of disease progression or unacceptable toxicity.

Patients receive low dose bicalutamide PO daily on days 1-30. Treatment repeats every 30 days for up to 2 courses in the absence of disease progression or unacceptable toxicity.

Patients receive low dose raloxifene hydrochloride PO daily and low dose bicalutamide PO on days 1-30. Treatment repeats every 30 days for up to 2 courses in the absence of disease progression or unacceptable toxicity.

Patients receive high dose raloxifene hydrochloride PO daily and high dose bicalutamide PO on days 1-30. Treatment repeats every 30 days for up to 2 courses in the absence of disease progression or unacceptable toxicity.

Laboratory Biomarker Analysis

Questionnaire Administration

Erik Castle

This phase II pilot trial studies how well bicalutamide and raloxifene hydrochloride work in treating patients with prostate cancer undergoing surgery. Antihormone therapy, such as bicalutamide and raloxifene hydrochloride, may lessen the amount of androgens made by the body.

PRIMARY OBJECTIVES:

I. To collect and interrogate samples in patients with prostate cancer that were diagnosed with prostate cancer and are planned for radical prostatectomy at Mayo Clinic Arizona.

SECONDARY OBJECTIVES:

I. To describe the adverse event profile and tolerance of therapy for 60 days of treatment prior to surgery.

II. To assess change in stage and/or grade of cancer and prostate specific antigen (PSA) response to neoadjuvant treatment in patients with hormone sensitive prostate cancer.

TERTIARY OBJECTIVES:

I. To evaluate specific pathways and changes when comparing biopsy specimens to prostatectomy.

II. To describe the quality of life of patients receiving hormonal therapy prior to radical prostatectomy.

OUTLINE: This is a dose-escalation study. Patients are randomized to 1 of 4 arms.

ARM A: Patients receive low dose raloxifene hydrochloride orally (PO) daily on days 1-30. Treatment repeats every 30 days for up to 2 courses in the absence of disease progression or unacceptable toxicity.

ARM B: Patients receive low dose bicalutamide PO daily on days 1-30. Treatment repeats every 30 days for up to 2 courses in the absence of disease progression or unacceptable toxicity.

ARM C: Patients receive low dose raloxifene hydrochloride PO daily and low dose bicalutamide PO on days 1-30. Treatment repeats every 30 days for up to 2 courses in the absence of disease progression or unacceptable toxicity.

ARM D: Patients receive high dose raloxifene hydrochloride PO daily and high dose bicalutamide PO on days 1-30. Treatment repeats every 30 days for up to 2 courses in the absence of disease progression or unacceptable toxicity.

After completion of study treatment, patients are followed up every 3 months.

Bicalutamide and Raloxifene Hydrochloride in Treating Patients With Prostate Cancer Undergoing Surgery

Neoadjuvant Treatment of Prostate Cancer With Bicalutamide and Raloxifene Prior to Radical Prostatectomy

Will be examined using stream plots and mean plots with associated two-sided 95% confidence intervals.

Continuous biomarker levels will be explored in a graphical manner including mean plots and plots of change and percent change from baseline and other summary measures. Any potential relationships between the baseline level or change in the level of each biomarker and clinical outcome will be further analyzed using Wilcoxon rank sum tests or logistic regression methods, as appropriate. Association between a dichotomized biomarker and overall response will be assessed using a chi-squared test.

Pathways and biomarkers will be compared to similar analyses that have been and will be performed on in vitro and in vivo experiments. Point estimates and two-sided 95% confidence intervals will be computed.

Will be calculated as the total number who were down staged divided by the number of total evaluable patients. A confidence interval for this rate will be calculated based on properties of the binomial distribution. Point estimates and two-sided 95% confidence intervals will be computed.

The maximum grade for each type of adverse event will be recorded for each patient, and frequency tables will be reviewed to determine patterns.

Will be calculated and displayed using waterfall plots.

Proportion of patients who complete 60 days of treatment will be calculated as the number of who completed 60 days of treatment divided by the total number of evaluable patients. A confidence interval for this rate will be calculated based on properties of the binomial distribution. The proportion of patients who experience a particular event will be calculated as the total number who experienced the event of interest divided by the number of total evaluable patients, with appropriate confidence interval.

Study title	NCT ID	Conditions	Interventions	Eligibility	Organization	Link
Bicalutamide and Raloxifene Hydrochloride in Treating Patients With Prostate Cancer Undergoing Surgery	NCT03147196	Stage I Prostat... Stage II Prosta...	Bicalutamide Laboratory Biom... Questionnaire A... Raloxifene Hydr...	40 Years -	Mayo Clinic
Bicalutamide and Raloxifene Hydrochloride in Treating Patients With Prostate Cancer Undergoing Surgery	NCT03147196	Stage I Prostat... Stage II Prosta...	Bicalutamide Laboratory Biom... Questionnaire A... Raloxifene Hydr...	40 Years -	Mayo Clinic

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