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Vitamin D3 Supplementation in Participants Diagnosed With Early-Stage Prostate Cancer Who Decide to Undergo Active Surveillance Treatment Regimen.

Phase 2
Completed
Conditions
Prostate Cancer
Registration Number
NCT01045109
Lead Sponsor
Medical University of South Carolina
Brief Summary

This clinical trial is aimed at measuring the effect of vitamin D3 supplementation on serum prostate-specific antigen (PSA) levels in patients diagnosed with early stage, low-grade, low-risk prostate cancer (Gleason score less than/equal to 6; PSA less than/equal to 10; clinical stage T1C or T2a), who elect to have their disease monitored through active surveillance for at least one year.

Detailed Description

Not available

Recruitment & Eligibility

Status
COMPLETED
Sex
Male
Target Recruitment
52
Inclusion Criteria
  • lowgrade prostate cancer
  • serum PSA less than/equal to 10 ng/ml
  • Gleason score less than/equal to 6
  • referred from their treating physician with treatment plan of active surveillance for one year
  • serum creatinine less than/equal to 2.0 mg/dL
  • serum phosphate (measured as phosphorus)greater than 2.3 and less than 4.8 mg/dL
  • serum calcium greater than 8.5 and less than 10.5 mg/dL
Exclusion Criteria
  • concurrent malignancy, except non-melanoma skin cancer
  • history of sarcoidosis
  • history of high dose (greater than 1,000 IU daily) vitamin D3 supplementation
  • history of hypercalcemia
  • treatment with lithium medication

Study & Design

Study Type
INTERVENTIONAL
Study Design
SINGLE_GROUP
Primary Outcome Measures
NameTimeMethod
Effect of vitamin D3 supplementation on prostate specific antigen levels in patients diagnosed with early stage, low-grade, low-risk prostate cancer.48 weeks
Secondary Outcome Measures
NameTimeMethod
Safety of subjects (determined by safety lab values every 8 weeks: serum Creatinine, Ca, Phosphorus, PTH, vit D3; CBC with differential; and urine Ca/Creat ratio) taking vitamin D3 supplementation (4,000 I.U.) daily.48 weeks

Trial Locations

Locations (1)

Medical University of South Carolina

πŸ‡ΊπŸ‡Έ

Charleston, South Carolina, United States

Medical University of South Carolina
πŸ‡ΊπŸ‡ΈCharleston, South Carolina, United States

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