Vitamin D for Prostate Endocrine Therapy

ClinicalTrials.gov ID: NCT05838716

Public ClinicalTrials.gov record NCT05838716. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

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ClinicalTrials.gov public records Last synced May 19, 2026, 1:40 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

High-dose Vitamin D Supplementation for ADT-Induced Bone Loss in Older Prostate Cancer Patients

Study identification

NCT ID: NCT05838716
Recruitment status: Recruiting
Study type: Interventional
Phase: Phase 3
Lead sponsor: University of Rochester; Other
Enrollment: 240 participants

Conditions and interventions

Conditions

Interventions

Biospecimen Collection Procedure
D Vitamin Dietary Supplement
Dual X-ray Absorptiometry Procedure
Placebo Administration Drug
Quality-of-Life Assessment Other
Questionnaire Administration Other

Procedure · Dietary Supplement · Drug + 1 more

Eligibility (public fields only)

Age range: 50 Years and older
Sex: Male
Healthy volunteers: Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date: Dec 13, 2023
Primary completion: Apr 28, 2029
Completion: Apr 28, 2029
Last update posted: Jan 14, 2026

2023 – 2029

United States locations

U.S. sites: 51
U.S. states: 14
U.S. cities: 42

Facility	City	State	ZIP	Site status
Helen F Graham Cancer Center	Newark	Delaware	19713	Recruiting
Medical Oncology Hematology Consultants PA	Newark	Delaware	19713	Recruiting
Carle at The Riverfront	Danville	Illinois	61832	Recruiting
Cancer Care Specialists of Illinois - Decatur	Decatur	Illinois	62526	Recruiting
Carle Physician Group-Effingham	Effingham	Illinois	62401	Recruiting
Carle Physician Group-Mattoon/Charleston	Mattoon	Illinois	61938	Recruiting
Cancer Care Center of O'Fallon	O'Fallon	Illinois	62269	Recruiting
Carle Cancer Center	Urbana	Illinois	61801	Recruiting
University of Kansas Cancer Center	Kansas City	Kansas	66160	Recruiting
University of Kansas Cancer Center-Overland Park	Overland Park	Kansas	66210	Recruiting
University of Kansas Health System Saint Francis Campus	Topeka	Kansas	66606	Recruiting
University of Kansas Hospital-Westwood Cancer Center	Westwood	Kansas	66205	Recruiting
Louisiana State University Health Science Center	New Orleans	Louisiana	70112	Recruiting
University Medical Center New Orleans	New Orleans	Louisiana	70112	Recruiting
Ochsner Medical Center Jefferson	New Orleans	Louisiana	70121	Recruiting
Mercy Hospital	Coon Rapids	Minnesota	55433	Recruiting
Minnesota Oncology Hematology PA-Maplewood	Maplewood	Minnesota	55109	Recruiting
Saint John's Hospital - Healtheast	Maplewood	Minnesota	55109	Recruiting
Park Nicollet Clinic - Saint Louis Park	Saint Louis Park	Minnesota	55416	Recruiting
Regions Hospital	Saint Paul	Minnesota	55101	Recruiting
Ridgeview Medical Center	Waconia	Minnesota	55387	Recruiting
University of Kansas Cancer Center - North	Kansas City	Missouri	64154	Recruiting
University of Kansas Cancer Center - Lee's Summit	Lee's Summit	Missouri	64064	Recruiting
Mercy Hospital Saint Louis	St Louis	Missouri	63141	Recruiting
OptumCare Cancer Care at Charleston	Las Vegas	Nevada	89102	Recruiting
CarolinaEast Medical Center	New Bern	North Carolina	28561	Recruiting
Nash UNC HealthCare	Rocky Mount	North Carolina	27804	Recruiting
Adena Regional Medical Center	Chillicothe	Ohio	45601	Recruiting
Geisinger Cancer Center Dickson City	Dickson City	Pennsylvania	18519	Recruiting
Community Medical Center	Scranton	Pennsylvania	18510	Recruiting
Geisinger Wyoming Valley/Henry Cancer Center	Wilkes-Barre	Pennsylvania	18711	Recruiting
Gibbs Cancer Center-Gaffney	Gaffney	South Carolina	29341	Recruiting
Saint Francis Hospital	Greenville	South Carolina	29601	Recruiting
Saint Francis Cancer Center	Greenville	South Carolina	29607	Recruiting
Gibbs Cancer Center-Pelham	Greer	South Carolina	29651	Recruiting
Spartanburg Medical Center	Spartanburg	South Carolina	29303	Recruiting
SMC Center for Hematology Oncology Union	Union	South Carolina	29379	Recruiting
Regional Cancer Center at Johnson City Medical Center	Johnson City	Tennessee	37604	Recruiting
Ballad Health Cancer Care - Kingsport	Kingsport	Tennessee	37660	Recruiting
Ballad Health Cancer Care - Bristol	Bristol	Virginia	24201	Recruiting
Bon Secours Memorial Regional Medical Center	Mechanicsville	Virginia	23116	Recruiting
Bon Secours Saint Francis Medical Center	Midlothian	Virginia	23114	Recruiting
Bon Secours Saint Mary's Hospital	Richmond	Virginia	23226	Recruiting
Bon Secours Cancer Institute at Reynolds Crossing	Richmond	Virginia	23230	Recruiting
VCU Massey Cancer Center at Stony Point	Richmond	Virginia	23235	Recruiting
VCU Massey Comprehensive Cancer Center	Richmond	Virginia	23298	Recruiting
Carilion Roanoke Memorial Hospital	Roanoke	Virginia	24033	Recruiting
Saint Vincent Hospital Cancer Center Green Bay	Green Bay	Wisconsin	54301	Recruiting
Saint Vincent Hospital Cancer Center at Saint Mary's	Green Bay	Wisconsin	54303	Recruiting
Gundersen Lutheran Medical Center	La Crosse	Wisconsin	54601	Recruiting
Saint Vincent Hospital Cancer Center at Sturgeon Bay	Sturgeon Bay	Wisconsin	54235-1495	Recruiting

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows: Public field values for ClinicalTrials.gov record NCT05838716, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do: No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from: Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh: Last update posted Jan 14, 2026 · Synced May 19, 2026

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The complete protocol, eligibility criteria, and contact information for NCT05838716 live on ClinicalTrials.gov.

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