NCT05838716

Brief Summary

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.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
240

participants targeted

Target at P50-P75 for phase_3

Timeline
36mo left

Started Dec 2023

Longer than P75 for phase_3

Geographic Reach
1 country

51 active sites

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress45%
Dec 2023Apr 2029

First Submitted

Initial submission to the registry

April 20, 2023

Completed
11 days until next milestone

First Posted

Study publicly available on registry

May 1, 2023

Completed
8 months until next milestone

Study Start

First participant enrolled

December 14, 2023

Completed
5.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 29, 2029

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 29, 2029

Last Updated

January 15, 2026

Status Verified

January 1, 2026

Enrollment Period

5.4 years

First QC Date

April 20, 2023

Last Update Submit

January 14, 2026

Conditions

Outcome Measures

Primary Outcomes (4)

  • Reduction of bone mineral density (BMD) loss as measured at the total hip

    Will determine the efficacy of high-dose vitamin D (HDVD) supplementation versus placebo in reducing BMD loss as measured at the total hip via dual-energy x-ray absorptiometry (DXA) at 52 weeks. Will use analysis of covariance (ANCOVA) with group (vitamin D or placebo) as the main factor, baseline timepoint (\[T\]1) BMD as covariate, and week 52 (T3) BMD as the outcome. Study site will be included as a random effect independent of residual error. An initial linear mixed model (LMM) will be fit using Restricted Maximum Likelihood (REML) estimation. The significance of the variance due to study site will be tested using the Wald Test.

    At 52 weeks

  • Reduction of BMD loss as measured at the femoral neck

    Will determine the efficacy of HDVD supplementation versus placebo in reducing BMD loss as measured at the femoral neck via DXA at 52 weeks. Will use ANCOVA with group (vitamin D or placebo) as the main factor, baseline (T1) BMD as covariate, and week 52 (T3) BMD as the outcome. Study site will be included as a random effect independent of residual error. An initial LMM will be fit using REML estimation. The significance of the variance due to study site will be tested using the Wald Test.

    At 52 weeks

  • Reduction of BMD loss as measured at the distal radius

    Will determine the efficacy of HDVD supplementation versus placebo in reducing BMD loss as measured at the distal radius via DXA at 52 weeks. Will use ANCOVA with group (vitamin D or placebo) as the main factor, baseline (T1) BMD as covariate, and week 52 (T3) BMD as the outcome. Study site will be included as a random effect independent of residual error. An initial LMM will be fit using REML estimation. The significance of the variance due to study site will be tested using the Wald Test.

    At 52 weeks

  • Reduction of BMD loss as measured at the lumbar spine

    Will determine the efficacy of HDVD supplementation versus placebo in reducing BMD loss as measured at the lumbar spine via DXA at 52 weeks. Will use ANCOVA with group (vitamin D or placebo) as the main factor, baseline (T1) BMD as covariate, and week 52 (T3) BMD as the outcome. Study site will be included as a random effect independent of residual error. An initial LMM will be fit using REML estimation. The significance of the variance due to study site will be tested using the Wald Test.

    At 52 weeks

Secondary Outcomes (3)

  • Change in falls

    Baseline up to 52 weeks

  • Change in fractures

    Baseline up to 52 weeks

  • Change in quality of life

    Baseline up to 52 weeks

Study Arms (2)

Arm I (HDVD)

EXPERIMENTAL

Patients receive HDVD PO QW for 52 weeks. Patients also undergo collection of blood and DXA scan on study.

Procedure: Biospecimen CollectionDietary Supplement: D VitaminProcedure: Dual X-ray AbsorptiometryOther: Quality-of-Life AssessmentOther: Questionnaire Administration

Arm II (placebo)

PLACEBO COMPARATOR

Patients receive placebo PO QW for 52 weeks. Patients also undergo collection of blood and DXA scan on study.

Procedure: Biospecimen CollectionProcedure: Dual X-ray AbsorptiometryDrug: Placebo AdministrationOther: Quality-of-Life AssessmentOther: Questionnaire Administration

Interventions

Undergo collection of blood

Also known as: Biological Sample Collection, Biospecimen Collected, Specimen Collection
Arm I (HDVD)Arm II (placebo)
D VitaminDIETARY_SUPPLEMENT

Given PO

Also known as: 3-[2-[7a-methyl-1-(1,4,5-trimethylhex-2-enyl)-1,2,3,3a,5,6,7,7a-octahydroinden-4-ylidene]ethylidene]-4-methylidene-cyclohexan-1-ol, Vitamin D, Vitamin D Compound, Vitamin-D
Arm I (HDVD)

Undergo DXA scan

Also known as: BMD scan, bone mineral density scan, DEXA, DEXA (Bone Density), DEXA Scan, dual energy x-ray absorptiometric scan, Dual Energy X-ray Absorptiometry, Dual X-Ray Absorptometry, DXA, DXA SCAN
Arm I (HDVD)Arm II (placebo)

Given PO

Arm II (placebo)

Ancillary studies

Also known as: Quality of Life Assessment
Arm I (HDVD)Arm II (placebo)

Ancillary studies

Arm I (HDVD)Arm II (placebo)

Eligibility Criteria

Age50 Years+
Sexmale(Gender-based eligibility)
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Be diagnosed with Stage I-IV prostate cancer without metastases to bone (lymph node involvement and prior diagnosis of a primary cancer is allowed)
  • Be age 50 years or older
  • Be starting ADT or have received their first ADT treatment in the past 6 months, with a total of at least 6 planned months of treatment (both luteinizing hormone-releasing hormone \[LHRH\] antagonists and LHRH agonists are permitted)
  • Have a total serum vitamin D between 10 and 32 ng/ml
  • Have a total serum calcium of less than or equal to 10.5 mg/dl
  • Have a normal GFR (glomerular filtration rate \> 30ml)
  • Agree not to take calcium and/or vitamin D supplements for the duration of the intervention other than those provided by the study
  • Be able to provide written informed consent
  • Be able to swallow pills and capsules
  • Be able to speak and read English

You may not qualify if:

  • Have long term (greater than 3 months) use of any pharmacologic bone-modifying agent including but not limited to oral or intravenous (IV) bisphosphonates, denosumab, or teriparatide prior to enrollment
  • Have a diagnosis of stage IV chronic kidney disease
  • Have a diagnosis of grade II or greater hypercalcemia (serum calcium greater than 11.5 mg/dl)
  • Have a history of hypercalcemia or vitamin D toxicity/sensitivity

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (51)

Helen F Graham Cancer Center

Newark, Delaware, 19713, United States

RECRUITING

Medical Oncology Hematology Consultants PA

Newark, Delaware, 19713, United States

RECRUITING

Carle at The Riverfront

Danville, Illinois, 61832, United States

RECRUITING

Cancer Care Specialists of Illinois - Decatur

Decatur, Illinois, 62526, United States

RECRUITING

Carle Physician Group-Effingham

Effingham, Illinois, 62401, United States

RECRUITING

Carle Physician Group-Mattoon/Charleston

Mattoon, Illinois, 61938, United States

RECRUITING

Cancer Care Center of O'Fallon

O'Fallon, Illinois, 62269, United States

RECRUITING

Carle Cancer Center

Urbana, Illinois, 61801, United States

RECRUITING

University of Kansas Cancer Center

Kansas City, Kansas, 66160, United States

RECRUITING

University of Kansas Cancer Center-Overland Park

Overland Park, Kansas, 66210, United States

RECRUITING

University of Kansas Health System Saint Francis Campus

Topeka, Kansas, 66606, United States

RECRUITING

University of Kansas Hospital-Westwood Cancer Center

Westwood, Kansas, 66205, United States

RECRUITING

Louisiana State University Health Science Center

New Orleans, Louisiana, 70112, United States

RECRUITING

University Medical Center New Orleans

New Orleans, Louisiana, 70112, United States

RECRUITING

Ochsner Medical Center Jefferson

New Orleans, Louisiana, 70121, United States

RECRUITING

Mercy Hospital

Coon Rapids, Minnesota, 55433, United States

RECRUITING

Minnesota Oncology Hematology PA-Maplewood

Maplewood, Minnesota, 55109, United States

RECRUITING

Saint John's Hospital - Healtheast

Maplewood, Minnesota, 55109, United States

RECRUITING

Park Nicollet Clinic - Saint Louis Park

Saint Louis Park, Minnesota, 55416, United States

RECRUITING

Regions Hospital

Saint Paul, Minnesota, 55101, United States

RECRUITING

Ridgeview Medical Center

Waconia, Minnesota, 55387, United States

RECRUITING

University of Kansas Cancer Center - North

Kansas City, Missouri, 64154, United States

RECRUITING

University of Kansas Cancer Center - Lee's Summit

Lee's Summit, Missouri, 64064, United States

RECRUITING

Mercy Hospital Saint Louis

St Louis, Missouri, 63141, United States

RECRUITING

OptumCare Cancer Care at Charleston

Las Vegas, Nevada, 89102, United States

RECRUITING

CarolinaEast Medical Center

New Bern, North Carolina, 28561, United States

RECRUITING

Nash UNC HealthCare

Rocky Mount, North Carolina, 27804, United States

RECRUITING

Adena Regional Medical Center

Chillicothe, Ohio, 45601, United States

RECRUITING

Geisinger Cancer Center Dickson City

Dickson City, Pennsylvania, 18519, United States

RECRUITING

Community Medical Center

Scranton, Pennsylvania, 18510, United States

RECRUITING

Geisinger Wyoming Valley/Henry Cancer Center

Wilkes-Barre, Pennsylvania, 18711, United States

RECRUITING

Gibbs Cancer Center-Gaffney

Gaffney, South Carolina, 29341, United States

RECRUITING

Saint Francis Hospital

Greenville, South Carolina, 29601, United States

RECRUITING

Saint Francis Cancer Center

Greenville, South Carolina, 29607, United States

RECRUITING

Gibbs Cancer Center-Pelham

Greer, South Carolina, 29651, United States

RECRUITING

Spartanburg Medical Center

Spartanburg, South Carolina, 29303, United States

RECRUITING

SMC Center for Hematology Oncology Union

Union, South Carolina, 29379, United States

RECRUITING

Regional Cancer Center at Johnson City Medical Center

Johnson City, Tennessee, 37604, United States

RECRUITING

Ballad Health Cancer Care - Kingsport

Kingsport, Tennessee, 37660, United States

RECRUITING

Ballad Health Cancer Care - Bristol

Bristol, Virginia, 24201, United States

RECRUITING

Bon Secours Memorial Regional Medical Center

Mechanicsville, Virginia, 23116, United States

RECRUITING

Bon Secours Saint Francis Medical Center

Midlothian, Virginia, 23114, United States

RECRUITING

Bon Secours Saint Mary's Hospital

Richmond, Virginia, 23226, United States

RECRUITING

Bon Secours Cancer Institute at Reynolds Crossing

Richmond, Virginia, 23230, United States

RECRUITING

VCU Massey Cancer Center at Stony Point

Richmond, Virginia, 23235, United States

RECRUITING

VCU Massey Comprehensive Cancer Center

Richmond, Virginia, 23298, United States

RECRUITING

Carilion Roanoke Memorial Hospital

Roanoke, Virginia, 24033, United States

RECRUITING

Saint Vincent Hospital Cancer Center Green Bay

Green Bay, Wisconsin, 54301, United States

RECRUITING

Saint Vincent Hospital Cancer Center at Saint Mary's

Green Bay, Wisconsin, 54303, United States

RECRUITING

Gundersen Lutheran Medical Center

La Crosse, Wisconsin, 54601, United States

RECRUITING

Saint Vincent Hospital Cancer Center at Sturgeon Bay

Sturgeon Bay, Wisconsin, 54235-1495, United States

RECRUITING

MeSH Terms

Conditions

Prostatic Neoplasms

Interventions

Specimen HandlingCholecalciferolVitamin DAbsorptiometry, PhotonBone Density

Condition Hierarchy (Ancestors)

Genital Neoplasms, MaleUrogenital NeoplasmsNeoplasms by SiteNeoplasmsGenital Diseases, MaleGenital DiseasesUrogenital DiseasesProstatic DiseasesMale Urogenital Diseases

Intervention Hierarchy (Ancestors)

Clinical Laboratory TechniquesDiagnostic Techniques and ProceduresDiagnosisInvestigative TechniquesCholestenesCholestanesSteroidsFused-Ring CompoundsPolycyclic CompoundsSterolsSecosteroidsMembrane LipidsLipidsRadiographyDiagnostic ImagingDensitometryPhotometryChemistry Techniques, AnalyticalMusculoskeletal Physiological PhenomenaMusculoskeletal and Neural Physiological Phenomena

Study Officials

  • Luke J Peppone

    University of Rochester NCORP Research Base

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
SUPPORTIVE CARE
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
URCC Study Chair

Study Record Dates

First Submitted

April 20, 2023

First Posted

May 1, 2023

Study Start

December 14, 2023

Primary Completion (Estimated)

April 29, 2029

Study Completion (Estimated)

April 29, 2029

Last Updated

January 15, 2026

Record last verified: 2026-01

Locations