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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Calcium carbonate Clear all
Active, not recruiting Phase 1 Interventional

ADP-A2M4CD8 as Monotherapy or in Combination With Either Nivolumab or Pembrolizumab in HLA-A2+ Subjects With MAGE-A4 Positive Tumors (SURPASS)

NCT04044859
View directory record Official record
Conditions
Endometrial Cancer, Esophageal Cancer, Esophagogastric Junction (EGJ), Gastric (Stomach) Cancer, Head and Neck Cancer, Melanoma, Ovarian Cancer, Non-small Cell Lung (NSCLC), Urothelial Cancer
Interventions
Autologous genetically modified ADP-A2M4CD8 cells alone or in combination with nivolumab every four weeks or pembrolizumab every 6 weeks
Genetic
Lead sponsor
USWM CT, LLC
Industry
Eligibility
18 Years to 75 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2037
U.S. locations
9
States / cities
Orlando, Florida • Boston, Massachusetts • St Louis, Missouri + 6 more
Source: ClinicalTrials.gov public record
Updated Sep 22, 2026 · Synced Sep 27, 2026, 7:06 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

A Study of Changes in Bone Mineral Density as a Function of Consuming Two Different Forms of Calcium Carbonate

NCT01857154
View directory record Official record
Conditions
Osteopenia, Osteoporosis
Interventions
Micronized Calcium Carbonate, Non-Micronized Calcium Carbonate, Vitamin D3
Dietary Supplement
Lead sponsor
Integrative Health Technologies, Inc.
Network
Eligibility
21 Years and older
Enrollment
160 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Nov 24, 2013 · Synced Sep 27, 2026, 7:06 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Nutrition and Body Composition in Acute Lymphoblastic Leukemia

NCT01317940
View directory record Official record
Conditions
Precursor Cell Lymphoblastic Leukemia-Lymphoma, Vitamin D Deficiency
Interventions
Vitamin D and Calcium Citrate
Dietary Supplement
Lead sponsor
Children's Hospital Los Angeles
Other
Eligibility
10 Years to 29 Years
Enrollment
76 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2016
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 7, 2020 · Synced Sep 27, 2026, 7:06 AM EDT
Completed Not applicable Interventional

Randomized Study of Alendronate in Adult Patients With Cystic Fibrosis Related Osteoporosis

NCT00004489
View directory record Official record
Conditions
Osteoporosis, Cystic Fibrosis
Interventions
alendronate sodium, calcium carbonate, cholecalciferol
Drug
Lead sponsor
University of North Carolina
Other
Eligibility
18 Years to 45 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1998 – 2002
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 24, 2015 · Synced Sep 27, 2026, 7:06 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity of Sequential Rotavirus Vaccine Schedules

NCT01266850
View directory record Official record
Conditions
Rotavirus Infection
Interventions
Rotarix®, RotaTeq®
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
6 Weeks to 14 Weeks
Enrollment
1,384 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2014
U.S. locations
13
States / cities
Oakland, California • Atlanta, Georgia • Iowa City, Iowa + 8 more
Source: ClinicalTrials.gov public record
Updated Oct 27, 2014 · Synced Sep 27, 2026, 7:06 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A New Paradigm for Vitamin D Sufficiency

NCT02969850
View directory record Official record
Conditions
New Biomarkers for Measuring Vitamin D Level
Interventions
Vitamin D Supplementation, Placebo, Calcium
Dietary Supplement · Other
Lead sponsor
NYU Langone Health
Other
Eligibility
60 Years to 90 Years · Female only
Enrollment
444 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
Mineola, New York
Source: ClinicalTrials.gov public record
Updated Oct 21, 2021 · Synced Sep 27, 2026, 7:06 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Clinical Efficacy of 10% Arginine Bicarbonate Prophylaxis Paste

NCT01072188
View directory record Official record
Conditions
Hypersensitivity
Interventions
Arginine/Calcium Carbonate, Nupro - Fluoride Free
Device
Lead sponsor
Colgate Palmolive
Industry
Eligibility
18 Years to 70 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
1
States / cities
Langhorne, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 13, 2011 · Synced Sep 27, 2026, 7:06 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Optimizing Vitamin D Status During Initial Military Training

NCT01617109
View directory record Official record
Conditions
Bone Health, Nutrition Status
Interventions
Ca/Vit D, Placebo
Dietary Supplement · Other
Lead sponsor
United States Army Research Institute of Environmental Medicine
Federal
Eligibility
17 Years to 42 Years
Enrollment
342 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2018
U.S. locations
2
States / cities
Fort Sill, Oklahoma • San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Oct 10, 2018 · Synced Sep 27, 2026, 7:06 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Encapsulated Calcium Absorption in Pregnancy

NCT01678079
View directory record Official record
Conditions
Pregnancy
Interventions
Encapsulated Calcium, Non-capsulated Calcium
Dietary Supplement
Lead sponsor
The Hospital for Sick Children
Other
Eligibility
18 Years to 30 Years · Female only
Enrollment
61 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013
U.S. locations
2
States / cities
Baltimore, Maryland • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Nov 17, 2014 · Synced Sep 27, 2026, 7:06 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Alpena Otago Telehealth Program

NCT04664166
View directory record Official record
Conditions
Geriatrics, Exercise, Telemedicine
Interventions
Alpena Otago Telehealth Program
Other
Lead sponsor
University of Michigan
Other
Eligibility
60 Years and older
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Flint, Michigan
Source: ClinicalTrials.gov public record
Updated Jan 5, 2022 · Synced Sep 27, 2026, 7:06 AM EDT
Completed Not applicable Interventional Results available

Impact of Vitamin D on Diabetic Kidney Disease in African Americans

NCT01214356
View directory record Official record
Conditions
Diabetic Kidney Disease
Interventions
Vitamin D3
Dietary Supplement
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years and older
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Oct 15, 2018 · Synced Sep 27, 2026, 7:06 AM EDT
Recruiting Not applicable Interventional

O. Formigenes Colonization in Calcium Oxalate Kidney Stone Disease

NCT06330246
View directory record Official record
Conditions
Kidney Stone, Kidney Calculi, Urolithiasis, Urolithiasis, Calcium Oxalate, Nephrolithiasis, Nephrolithiasis, Calcium Oxalate, Oxalate Urolithiasis, Oxaluria
Interventions
Low oxalate fixed diets pre-colonization, Moderately high oxalate fixed diets pre-colonization, Colonization with Oxalobacter formigenes, Low oxalate fixed diets post-colonization, Moderately high oxalate fixed diets post-colonization
Dietary Supplement
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years to 70 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2031
U.S. locations
2
States / cities
Birmingham, Alabama • Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Aug 26, 2026 · Synced Sep 27, 2026, 7:06 AM EDT
Terminated Phase 3 Interventional

Chemoprevention of Colorectal Adenomas

NCT00486512
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Sep 2, 2020 · Synced Sep 27, 2026, 7:06 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study Assessing Dosing Time and Calcium and Vitamin D on the Relative BA of 35 mg DR Risedronate Dosed With Food

NCT00868907
View directory record Official record
Conditions
Healthy
Interventions
35 mg risedronate DR tablet
Drug
Lead sponsor
Warner Chilcott
Industry
Eligibility
40 Years to 70 Years · Female only
Enrollment
101 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
4
States / cities
Gainesville, Florida • Miami, Florida • Honolulu, Hawaii + 1 more
Source: ClinicalTrials.gov public record
Updated Oct 11, 2011 · Synced Sep 27, 2026, 7:06 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Drug-Drug Interaction Study of Orforglipron (LY3502970) in Healthy Overweight and Obese Participants

NCT06186622
View directory record Official record
Conditions
Healthy, Obese, Overweight
Interventions
Orforglipron, Simvastatin, Digoxin, Rosuvastatin, Acetaminophen, Midazolam, Sodium Bicarbonate
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years to 70 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
2
States / cities
Daytona Beach, Florida • Dallas, Texas
Source: ClinicalTrials.gov public record
Updated May 21, 2026 · Synced Sep 27, 2026, 7:06 AM EDT
Completed Phase 2Phase 3 Interventional Results available

Study to Evaluate the Efficacy of Tenapanor as Adjunctive Therapy to Phosphate Binder Therapy

NCT03824587
View directory record Official record
Conditions
Hyperphosphatemia
Interventions
Tenapanor, Placebo, Phosphate Binder Agents
Drug
Lead sponsor
Ardelyx
Industry
Eligibility
18 Years to 80 Years
Enrollment
236 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019
U.S. locations
48
States / cities
Huntsville, Alabama • Pine Bluff, Arkansas • Beverly Hills, California + 41 more
Source: ClinicalTrials.gov public record
Updated Mar 5, 2023 · Synced Sep 27, 2026, 7:06 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Vitamin D Supplementation and Physical Function in Older Adults

NCT01179503
View directory record Official record
Conditions
Physical Function, Vitamin D Insufficiency
Interventions
calcium, Vitamin D plus calcium
Dietary Supplement
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
70 Years to 89 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 16, 2018 · Synced Sep 27, 2026, 7:06 AM EDT
Active, not recruiting Phase 3 Interventional

Imatinib Mesylate and Combination Chemotherapy in Treating Patients With Newly Diagnosed Philadelphia Chromosome Positive Acute Lymphoblastic Leukemia

NCT03007147
View directory record Official record
Conditions
Acute Lymphoblastic Leukemia, B Acute Lymphoblastic Leukemia, Mixed Phenotype Acute Leukemia, T Acute Lymphoblastic Leukemia
Interventions
Allogeneic Hematopoietic Stem Cell Transplantation, Calaspargase Pegol, Cyclophosphamide, Cytarabine, Daunorubicin Hydrochloride, Dexamethasone, Dexrazoxane Hydrochloride, Doxorubicin, Etoposide, Filgrastim, Ifosfamide, Imatinib Mesylate, Laboratory Biomarker Analysis, Leucovorin Calcium, Levoleucovorin, Mercaptopurine, Methotrexate, Methylprednisolone, Pegaspargase, Prednisolone, Questionnaire Administration, Therapeutic Hydrocortisone, Thioguanine, Vincristine Sulfate
Procedure · Drug · Biological + 1 more
Lead sponsor
Children's Oncology Group
Network
Eligibility
1 Year to 21 Years
Enrollment
352 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2027
U.S. locations
184
States / cities
Birmingham, Alabama • Mobile, Alabama • Anchorage, Alaska + 145 more
Source: ClinicalTrials.gov public record
Updated Aug 18, 2026 · Synced Sep 27, 2026, 7:06 AM EDT
Terminated Not applicable Interventional Results available

Study of Adults With Low Growth Hormone Who Survived Childhood Cancer Where Treatment Caused Low Bone Density

NCT00145704
View directory record Official record
Conditions
Osteopenia
Interventions
bisphosphonate therapy (risedronate), Vitamin D supplement, Calcium
Drug · Dietary Supplement
Lead sponsor
State University of New York - Upstate Medical University
Other
Eligibility
18 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2008
U.S. locations
1
States / cities
Syracuse, New York
Source: ClinicalTrials.gov public record
Updated Apr 7, 2013 · Synced Sep 27, 2026, 7:06 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Study of Parental Ratings of Quality of Life and Body Composition in 5-19 Year Olds While Participating in the Good NEWS 4 Kids Program

NCT01855009
View directory record Official record
Conditions
Quality of Life, Body Mass Index
Interventions
MannaBears, AlgaeCal Calcium, Calcium carbonate, Vitamin D3
Dietary Supplement
Lead sponsor
Integrative Health Technologies, Inc.
Network
Eligibility
5 Years to 19 Years
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Jun 23, 2013 · Synced Sep 27, 2026, 7:06 AM EDT
Active, not recruiting Phase 1Phase 2 Interventional Results available

A Study to Determine Dose, Safety, Tolerability and Efficacy of CC-220 Monotherapy, and in Combination With Other Treatments in Subjects With Multiple Myeloma

NCT02773030
View directory record Official record
Conditions
Multiple Myeloma
Interventions
CC-220, Dexamethasone, Daratumumab, Bortezomib, Carfilzomib, Daratumumab - 16mg/kg, Bortezomib (BTZ), Daratumumab- 1800mg
Drug
Lead sponsor
Celgene
Industry
Eligibility
18 Years and older
Enrollment
466 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2028
U.S. locations
58
States / cities
Scottsdale, Arizona • Little Rock, Arkansas • Atlanta, Georgia + 24 more
Source: ClinicalTrials.gov public record
Updated Mar 19, 2026 · Synced Sep 27, 2026, 7:06 AM EDT
Completed Phase 2 Interventional Results available

Celecoxib After Tonsillectomy

NCT02934191
View directory record Official record
Conditions
Tonsillectomy
Interventions
Celecoxib, Placebo, Acetaminophen, Oxycodone
Drug · Other
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
3 Years to 11 Years
Enrollment
172 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 9, 2020 · Synced Sep 27, 2026, 7:06 AM EDT
Completed Phase 2 Interventional

Calcium and Vitamin D vs Markers of Adenomatous Polyps

NCT00208793
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Nov 25, 2013 · Synced Sep 27, 2026, 7:06 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

CARDIA-Salt Sensitivity of Blood Pressure (SSBP)

NCT04258332
View directory record Official record
Conditions
Salt Sensitivity of Blood Pressure, Hypertension
Interventions
High Salt Diet, Low Salt Diet
Dietary Supplement
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
50 Years to 70 Years
Enrollment
281 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
2
States / cities
Birmingham, Alabama • Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 6, 2026 · Synced Sep 27, 2026, 7:06 AM EDT