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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Calcium supplement Clear all
Terminated Phase 4 Interventional Results available

Steroid Use in Non-RSV Bronchiolitis

NCT04221087
View directory record Official record
Conditions
Bronchiolitis, Viral
Interventions
Placebos, Dexamethasone Oral
Drug
Lead sponsor
Allison Williams
Other
Eligibility
1 Day to 2 Years
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 20, 2023 · Synced Sep 14, 2026, 3:10 PM EDT
Completed Phase 4 Interventional

Empiric Versus Selective Prevention Strategies for Kidney Stone Disease

NCT05365477
View directory record Official record
Conditions
Kidney Stones, Nephrolithiasis
Interventions
Empiric Therapy: Diet, Empiric Therapy: Drug, Selective Therapy: Diet, Selective Therapy: Drug
Behavioral · Drug
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years and older
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jun 2, 2026 · Synced Sep 14, 2026, 3:10 PM EDT
Completed Not applicable Interventional Results available

Zoledronic Acid for Osteoporosis in the Elderly

NCT00558012
View directory record Official record
Conditions
Osteoporosis, Bone Loss, Fragility Fractures
Interventions
Intravenous zoledronic acid, Vitamin D 800 IU/daily, Calcium 1200 mg/daily
Drug · Dietary Supplement
Lead sponsor
University of Pittsburgh
Other
Eligibility
65 Years and older · Female only
Enrollment
181 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2014
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 30, 2015 · Synced Sep 14, 2026, 3:10 PM EDT
Completed Phase 4 Interventional Results available

Novel Combination Therapy for Osteoporosis in Men

NCT03994172
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Sep 2, 2026 · Synced Sep 14, 2026, 3:10 PM EDT
Terminated Not applicable Interventional

Surgical vs. Lifestyle in Obese Older Adults

NCT03137329
View directory record Official record
Conditions
Obesity
Interventions
Exercise program, Nutrition, WLS
Behavioral · Dietary Supplement · Procedure
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
55 Years to 75 Years
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 22, 2019 · Synced Sep 14, 2026, 3:10 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Hydroxycitrate on Urine Chemistry

NCT03348228
View directory record Official record
Conditions
Nephrolithiasis
Interventions
Hydroxycitrate (HCA)
Dietary Supplement
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 25, 2022 · Synced Sep 14, 2026, 3:10 PM EDT
Completed Phase 4 Interventional Results available

A Study to Learn if Recombinant Human Parathyroid Hormone [rhPTH(1-84)] Can Improve Symptoms and Metabolic Control in Adults With Hypoparathyroidism (BALANCE)

NCT03324880
View directory record Official record
Conditions
Hypoparathyroidism
Interventions
rhPTH (1-84), Placebo
Biological
Lead sponsor
Shire
Industry
Eligibility
18 Years to 85 Years
Enrollment
93 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
6
States / cities
Chicago, Illinois • Detroit, Michigan • Rochester, Minnesota + 3 more
Source: ClinicalTrials.gov public record
Updated Jun 8, 2023 · Synced Sep 14, 2026, 3:10 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Galactooligosaccharide (GOS) Supplementation and Calcium Absorption in Girls

NCT01263847
View directory record Official record
Conditions
Osteoporosis
Interventions
Galactooligosaccharide
Dietary Supplement
Lead sponsor
Purdue University
Other
Eligibility
10 Years to 12 Years · Female only
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
1
States / cities
West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated May 8, 2018 · Synced Sep 14, 2026, 3:10 PM EDT
Not listed Not applicable Interventional

Changes in Microbiota and Quality of Life in IBS

NCT05266287
View directory record Official record
Conditions
IBS - Irritable Bowel Syndrome
Interventions
a supplement containing 2'-fucosyllactose (2'-FL), Placebo Supplement
Dietary Supplement
Lead sponsor
National University of Natural Medicine
Other
Eligibility
18 Years to 70 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Mar 23, 2023 · Synced Sep 14, 2026, 3:10 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Dairy Foods Compared to Dietary Supplements and Bone Health

NCT01394484
View directory record Official record
Conditions
Osteoporosis, Bone Loss, Osteopenia
Interventions
Intervention I, Intervention II
Other · Dietary Supplement
Lead sponsor
USDA, Western Human Nutrition Research Center
Federal
Eligibility
50 Years to 65 Years · Female only
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Feb 25, 2013 · Synced Sep 14, 2026, 3:10 PM EDT
Completed Not applicable Interventional

High-dose Vitamin D Supplementation for ADT-induced Side Effects

NCT02064946
View directory record Official record
Conditions
Prostatic Neoplasms, Bone Mineral Density Quantitative Trait Locus 3
Interventions
vitamin D, Placebo
Dietary Supplement
Lead sponsor
University of Rochester
Other
Eligibility
60 Years to 99 Years · Male only
Enrollment
108 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Apr 7, 2019 · Synced Sep 14, 2026, 3:10 PM EDT
Not listed Phase 2 Interventional Accepts healthy volunteers

Cyclic Versus Daily Teriparatide on Bone Mass

NCT00668941
View directory record Official record
Conditions
Osteoporosis
Interventions
Teriparatide, Alendronate, Calcium, Vitamin D3
Drug · Dietary Supplement
Lead sponsor
Helen Hayes Hospital
Other
Eligibility
45 Years to 85 Years · Female only
Enrollment
140 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2017
U.S. locations
1
States / cities
West Haverstraw, New York
Source: ClinicalTrials.gov public record
Updated Aug 9, 2017 · Synced Sep 14, 2026, 3:10 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Dried Plums Prevent Inflammation And Improve Bone Health in Osteopenic Men

NCT03408119
View directory record Official record
Conditions
Osteoporosis, Osteopenia
Interventions
Dried Plum, 800 IU vitamin D and 450mg elemental calcium
Dietary Supplement
Lead sponsor
Florida State University
Other
Eligibility
50 Years to 80 Years · Male only
Enrollment
62 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2022
U.S. locations
1
States / cities
Tallahassee, Florida
Source: ClinicalTrials.gov public record
Updated Oct 6, 2022 · Synced Sep 14, 2026, 3:10 PM EDT
Completed Phase 3 Interventional Results available

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

NCT00079001
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated May 11, 2020 · Synced Sep 14, 2026, 3:10 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

PUSH Plus Protein Pilot for Hip Fracture Patients

NCT03410823
View directory record Official record
Conditions
Hip Fracture
Interventions
PUSH, Protein, Nutrition
Behavioral · Dietary Supplement
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
60 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
2
States / cities
Baltimore, Maryland • Towson, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 25, 2024 · Synced Sep 14, 2026, 3:10 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

HMB Cerebral Palsy Pilot Study

NCT05384951
View directory record Official record
Conditions
Cerebral Palsy
Interventions
HMB + Vitamin D3
Dietary Supplement
Lead sponsor
Gillette Children's Specialty Healthcare
Other
Eligibility
13 Years to 17 Years
Enrollment
7 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Saint Paul, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 21, 2024 · Synced Sep 14, 2026, 3:10 PM EDT
Not listed Phase 1 Interventional

Nutritional Supplements on Blood Pressure 2008

NCT00609570
View directory record Official record
Conditions
Hypertension
Interventions
NanoGreens, Whey protein, Calcium pills
Dietary Supplement
Lead sponsor
Logan College of Chiropractic
Other
Eligibility
20 Years to 70 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
2
States / cities
Chesterfield, Missouri
Source: ClinicalTrials.gov public record
Updated Oct 27, 2008 · Synced Sep 14, 2026, 3:10 PM EDT
Completed Phase 2 Interventional Results available

Supplements, Placebo, or Rosuvastatin Study

NCT04846231
View directory record Official record
Conditions
Hypercholesterolemia
Interventions
Fish Oil, Cinnamon, Garlique,Turmeric, Plant Sterol, Red Yeast Rice, Rosuvastatin, Placebo
Dietary Supplement · Drug · Other
Lead sponsor
The Cleveland Clinic
Other
Eligibility
40 Years to 75 Years
Enrollment
203 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated May 24, 2023 · Synced Sep 14, 2026, 3:10 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

The Effect of Protein Supplementation on Bone Health in Healthy Older Men and Women

NCT00421408
View directory record Official record
Conditions
Bone Resorption, Osteoporosis
Interventions
Whey protein supplement, Placebo
Dietary Supplement
Lead sponsor
Yale University
Other
Eligibility
60 Years to 85 Years
Enrollment
208 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2012
U.S. locations
2
States / cities
Farmington, Connecticut • New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 8, 2020 · Synced Sep 14, 2026, 3:10 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

An Exploratory Investigation of a Supplement to Promote Cognitive Health Benefits

NCT05523115
View directory record Official record
Conditions
Anxiety, Stress, Memory Deficits, Cortisol Overproduction
Interventions
Heights Smart Supplement
Dietary Supplement
Lead sponsor
Heights
Industry
Eligibility
21 Years to 70 Years
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Santa Monica, California
Source: ClinicalTrials.gov public record
Updated Nov 7, 2022 · Synced Sep 14, 2026, 3:10 PM EDT
Completed Early Phase 1 Interventional

Oral Ketones and Exercise Among Patients With Long-chain Fatty Acid Oxidation Disorders

NCT05411835
View directory record Official record
Conditions
Long-chain 3-hydroxyacyl-CoA Dehydrogenase Deficiency, Carnitine Palmitoyltransferase Deficiency 2, Very Long Chain Acyl Coa Dehydrogenase Deficiency, Trifunctional Protein Deficiency
Interventions
Nutritional Ketone Supplement, Isocaloric Placebo Supplement
Dietary Supplement
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years and older
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Apr 1, 2024 · Synced Sep 14, 2026, 3:10 PM EDT
Completed No phase listed Observational

A Registry for Participants With Chronic Hypoparathyroidism

NCT01922440
View directory record Official record
Conditions
Hypoparathyroidism
Interventions
No intervention
Other
Lead sponsor
Takeda
Industry
Eligibility
Not listed
Enrollment
1,339 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2026
U.S. locations
54
States / cities
Birmingham, Alabama • Tucson, Arizona • Los Angeles, California + 42 more
Source: ClinicalTrials.gov public record
Updated Jul 13, 2026 · Synced Sep 14, 2026, 3:10 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effect of Caloric Restriction and Protein Intake on Metabolism and Anabolic Sensitivity

NCT02945410
View directory record Official record
Conditions
Weight Loss, Starvation
Interventions
Caloric Restriction, Protein, Exercise, Calcium and Vitamin D, Maltodextrin
Other · Dietary Supplement
Lead sponsor
University of Nebraska Lincoln
Other
Eligibility
19 Years to 30 Years · Male only
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Dec 18, 2019 · Synced Sep 14, 2026, 3:10 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Soy, Bone and Health in College Females

NCT00244478
View directory record Official record
Conditions
Osteoporosis, Obesity
Interventions
Soy Protein Dietary Supplement, Placebo
Dietary Supplement
Lead sponsor
University of Georgia
Other
Eligibility
18 Years to 19 Years · Female only
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2006
U.S. locations
1
States / cities
Athens, Georgia
Source: ClinicalTrials.gov public record
Updated Sep 24, 2015 · Synced Sep 14, 2026, 3:10 PM EDT