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Study identifier: NCT05838716 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

Vitamin D for Prostate Endocrine Therapy

Condition: Stage I Prostate Cancer AJCC v8 · Stage II Prostate Cancer AJCC v8 · Stage III Prostate Cancer AJCC v8  ·  Sponsor: University of Rochester

PhasePhase 3
Planned participants240
Who can joinMale, 50 Years to no upper limit
Healthy volunteersNo

About this study

This phase III trial tests whether high-dose vitamin D works in treating androgen-deprivation therapy (ADT)-induced bone loss in patients with prostate cancer who are undergoing androgen-deprivation therapy. Vitamins are substances that the body needs to grow and develop normally. Vitamin D helps the body absorb calcium. Calcium is one of the main building blocks of bone. A lack of vitamin D can lead to bone diseases such as osteoporosis or rickets. This trial may help researchers determine if high-dose vitamin D helps keep bones strong, lowers number of falls, and lessens fatigue in men getting androgen-deprivation therapy.

This description comes directly from the study's public registry record.

Talk to the study team

Contact details are listed per location below or on the registry record.

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Locations (51)

Helen F Graham Cancer CenterNewark, Delaware, United StatesRecruiting
Medical Oncology Hematology Consultants PANewark, Delaware, United StatesRecruiting
Carle at The RiverfrontDanville, Illinois, United StatesRecruiting
Cancer Care Specialists of Illinois - DecaturDecatur, Illinois, United StatesRecruiting
Carle Physician Group-EffinghamEffingham, Illinois, United StatesRecruiting
Carle Physician Group-Mattoon/CharlestonMattoon, Illinois, United StatesRecruiting
Cancer Care Center of O'FallonO'Fallon, Illinois, United StatesRecruiting
Carle Cancer CenterUrbana, Illinois, United StatesRecruiting
University of Kansas Cancer CenterKansas City, Kansas, United StatesRecruiting
University of Kansas Cancer Center-Overland ParkOverland Park, Kansas, United StatesRecruiting
University of Kansas Health System Saint Francis CampusTopeka, Kansas, United StatesRecruiting
University of Kansas Hospital-Westwood Cancer CenterWestwood, Kansas, United StatesRecruiting

+ 39 more locations — full list on the registry record.

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Source record: clinicaltrials.gov/study/NCT05838716