Search | Clinical Trials Finder

These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.

ClinicalTrials.gov public records Last synced Oct 4, 2026, 11:05 AM EDT

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

Showing 1–17 of 17 matching trials from the live ClinicalTrials.gov search.

Filters: Intervention: Calcium and vitamin D3 combined Clear all

Conditions: Renal Insufficiency
Interventions: Zoledronic Acid, Calcium with vitamin D, Alendronate; Drug · Combination Product
Lead sponsor: University of Nebraska; Other
Eligibility: 19 Years and older
Enrollment: 59 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2003 – 2014
U.S. locations: 1
States / cities: Omaha, Nebraska

Conditions: Type 1 Diabetes
Interventions: Autologous UCB, Omega 3 FA, Vitamin D; Biological · Dietary Supplement
Lead sponsor: University of Florida; Other
Eligibility: 1 Year to 18 Years
Enrollment: 15 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2009 – 2012
U.S. locations: 1
States / cities: Gainesville, Florida

Conditions: Male Osteoporosis
Interventions: Teriparatide or human parathyroid hormone (PTH) 1-34, Cinacalcet, placebo tablet, Calcium citrate tablet, Vitamin D3; Drug · Dietary Supplement
Lead sponsor: VA Office of Research and Development; Federal
Eligibility: 60 Years to 85 Years · Male only
Enrollment: 40 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2019 – 2025
U.S. locations: 1
States / cities: San Francisco, California

Conditions: HIV Infection
Interventions: Vitamin D3 50,000 IU, Vitamin D3 placebo; Dietary Supplement
Lead sponsor: University of North Carolina, Chapel Hill; Other
Eligibility: 16 Years to 24 Years
Enrollment: 214 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2012 – 2016
U.S. locations: 16
States / cities: Los Angeles, California • Washington D.C., District of Columbia • Fort Lauderdale, Florida + 11 more

Conditions: Osteoporosis
Interventions: PTH(1-84), Ibandronate, Placebo injection, Placebo pills; Drug · Other
Lead sponsor: University of California, San Francisco; Other
Eligibility: 55 Years to 75 Years · Female only
Enrollment: 44 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2008 – 2011
U.S. locations: 1
States / cities: San Francisco, California

Conditions: Osteoporosis, Prostate Cancer
Interventions: Calcium, Zoledronic acid, radiation therapy, LHRH, Vitamin D; Dietary Supplement · Radiation · Drug
Lead sponsor: Radiation Therapy Oncology Group; Network
Eligibility: 18 Years and older · Male only
Enrollment: 109 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2006 – 2014
U.S. locations: 80
States / cities: Chico, California • Los Angeles, California • Pomona, California + 66 more

Conditions: Adenomatous Polyps
Interventions: 0.5 mg calcitriol (1a -25-dihydroxycholecalciferol), 75 mg acetylsalicylic acid (ASA) + 1250 mg calcium carbonate (CaCO3), placebo to 0.5 mg calcitriol (1a -25-dihydroxycholecalciferol), placebo to 75 mg acetylsalicylic acid (ASA) + 1250 mg calcium carbonate (CaCO3), Colonoscopy; Drug · Procedure
Lead sponsor: Colotech A/S; Industry
Eligibility: 40 Years to 75 Years
Enrollment: 350 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2007 – 2010
U.S. locations: 24
States / cities: Huntsville, Alabama • San Diego, California • Clearwater, Florida + 20 more

Conditions: Aging, Skeletal Muscle
Interventions: Non-Exercise Control, Resistance Exercise Training, Placebo, HMB+VitD; Behavioral · Dietary Supplement
Lead sponsor: University of Illinois at Urbana-Champaign; Other
Eligibility: 45 Years to 60 Years · Female only
Enrollment: 48 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2019 – 2021
U.S. locations: 1
States / cities: Urbana, Illinois

Conditions: Colorectal Adenomatous Polyps
Interventions: Calcium and vitamin D3 combined, Placebo, Calcium, Vitamin D3; Dietary Supplement · Drug
Lead sponsor: Emory University; Other
Eligibility: 30 Years to 74 Years
Enrollment: 92 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2005 – 2013
U.S. locations: 1
States / cities: Atlanta, Georgia

Conditions: Postmenopausal Osteoporosis
Interventions: Strength/Weight Training & Drug/Supplement, Drug/Supplement only; Other · Combination Product
Lead sponsor: University of Nebraska; Other
Eligibility: 35 Years to 75 Years · Female only
Enrollment: 249 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2002 – 2007
U.S. locations: 4
States / cities: Kearney, Nebraska • Lincoln, Nebraska • Omaha, Nebraska + 1 more

Conditions: HIV-1 Infection
Interventions: EFV/FTC/TDF, Calcium Carbonate, Vitamin D3, Placebo for calcium carbonate, Placebo for vitamin D3; Drug
Lead sponsor: Advancing Clinical Therapeutics Globally for HIV/AIDS and Other Infections; Network
Eligibility: 18 Years and older
Enrollment: 167 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2011 – 2013
U.S. locations: 38
States / cities: Birmingham, Alabama • Los Angeles, California • Palo Alto, California + 27 more

Conditions: Metastatic Cancer, Prostate Cancer
Interventions: zoledronic acid, placebo, androgen deprivation therapy, GnRH agonist, Calcium supplement, Vitamin D; Drug · Other · Dietary Supplement
Lead sponsor: Alliance for Clinical Trials in Oncology; Other
Eligibility: 18 Years and older · Male only
Enrollment: 645 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2004 – 2014
U.S. locations: 238
States / cities: Mobile, Alabama • Fort Smith, Arkansas • Little Rock, Arkansas + 159 more

Conditions: Sarcopenia
Interventions: Placebo, HMB plus Vitamin D, Non-Exercise, Exercise; Dietary Supplement · Drug · Behavioral
Lead sponsor: Metabolic Technologies Inc.; Industry
Eligibility: 60 Years and older
Enrollment: 238 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2014 – 2019
U.S. locations: 1
States / cities: Ames, Iowa

Conditions: Post Menopausal Osteoporosis
Interventions: Placebo, Vitamin D and calcium supplementation, ibandronate [Bonviva/Boniva]; Drug
Lead sponsor: Hoffmann-La Roche; Industry
Eligibility: 65 Years and older · Female only
Enrollment: 67 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2006 – 2007
U.S. locations: 7
States / cities: Beverly Hills, California • La Jolla, California • Augusta, Georgia + 4 more

Conditions: Breast Cancer
Interventions: Raloxifene followed by combination therapy, Exemestane followed by combination therapy; Drug
Lead sponsor: Memorial Sloan Kettering Cancer Center; Other
Eligibility: 18 Years and older · Female only
Enrollment: 11 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 1999 – 2008
U.S. locations: 1
States / cities: New York, New York

Conditions: Stage IV Colon Cancer, Stage IV Rectal Cancer
Interventions: leucovorin calcium, bevacizumab, cholecalciferol, fluorouracil, oxaliplatin, pharmacological study; Drug · Biological · Dietary Supplement + 1 more
Lead sponsor: Roswell Park Cancer Institute; Other
Eligibility: 18 Years to 79 Years
Enrollment: 10 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2010 – 2012
U.S. locations: 1
States / cities: Buffalo, New York

Conditions: Obesity, Overweight
Interventions: Orange Juice fortified with Calcium and Vitamin D, Orange juice without Ca or VitD, Nutritional Counseling; Dietary Supplement · Behavioral
Lead sponsor: Massachusetts General Hospital; Other
Eligibility: 18 Years to 65 Years
Enrollment: 130 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2005 – 2006
U.S. locations: 1
States / cities: Boston, Massachusetts

Search by objective public record fields.

Effects of Zoledronic Acid Versus Alendronate on Bone Loss After Kidney and Kidney/Pancreas Transplants

Cord Blood Plus Vitamin D and Omega 3s in T1D

Novel Combination Therapy for Osteoporosis in Men

Vitamin D Absorption in HIV Infected Young Adults Being Treated With Tenofovir Containing cART

PTH & Ibandronate Combination Study (PICS)

Zoledronate in Preventing Osteoporosis and Bone Fractures in Patients With Locally Advanced Nonmetastatic Prostate Cancer Undergoing Radiation Therapy and Hormone Therapy

Chemoprevention of Colorectal Adenomas

Independent and Combined Effects of Resistance Exercise Training and β-hydroxy β-methylbutyrate Plus Vitamin D

Calcium and Vitamin D vs Markers of Adenomatous Polyps

Prevention of Osteoporosis in Breast Cancer Survivors

High Dose Vitamin D and Calcium for Bone Health in Individuals Initiating HAART

Zoledronate in Preventing Skeletal (Bone)-Related Events in Men Who Are Receiving Androgen Deprivation Therapy For Prostate Cancer and Bone Metastases

Nutritional Intervention for Age-related Muscular Function and Strength Losses-Study 2

A Study of Bone Turnover Markers in Post-Menopausal Women With Osteoporosis Treated With Monthly Boniva (Ibandronate)

Combined Estrogen Blockade of the Breast With Exemestane and Raloxifene in Postmenopausal Women With a History of Breast Cancer Who Have No Clinical Evidence of Disease

High-Dose Cholecalciferol in Treating Patients Receiving Combination Chemotherapy and Bevacizumab as First-Line Therapy For Metastatic Colorectal Cancer

Calcium Supplementation for a Healthy Weight (CaSHeW)