Prostate Cancer
Conditions
Keywords
vitamin D, prostatic neoplasms, neoplasm recurrence
Brief summary
Prostate cancer is a common occurrence in the aging population, with one in ten men destined to develop the disease. 40% of patients with prostate cancer experience a recurrence after definitive treatment. This study addresses the as-yet unresolved problem of the optimal management of early recurrence as manifested by increase in the accepted marker for this disease, PSA. Vitamin D, an agent with cell-differentiating properties, has been shown to inhibit angiogenesis and cause differentiation of prostate cancer cells in the laboratory and to affect PSA favorably in clinical studies of patients with advanced prostate cancer. This study will assess the effects of vitamin D in patients with sub-clinical biochemical relapses of prostate cancer as indicated by rising PSA but low tumor burdens, with the potential for developing an approach to this problem that will delay or prevent progression.
Interventions
DRUGcalcifidiol
Sponsors
US Department of Veterans Affairs
Study design
Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
MALE
Healthy volunteers
No
Inclusion criteria
Patients will be males with three successive rises in PSA after achieving a nadir post-definitive therapy. The following criteria must be met: pathologically confirmed prostate cancer, completion of definitive treatment in the form of local external beam radiation or definitive surgery and three successive rises in PSA with no clinical evidence of disease.
Countries
United States
Outcome results
None listed