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Showing 1–24 of 602 matching trials from the live ClinicalTrials.gov search.
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Recruiting Not applicable Interventional

The Florida ASCENT Study

NCT07042243
View directory record Official record
Conditions
Cancer, Food Deprivation, Food Habits, Food Selection, Colorectal Cancer, Prostate Cancer, Lung Cancer, Breast Cancer, Gynecologic Cancer, Hematologic Cancer, Skin Cancer, Melanoma, Nutrition Poor, Nutritional Deficiency
Interventions
MyCarePulse and ASCENT PN
Behavioral
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 100 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Feb 19, 2026 · Synced Jul 20, 2026, 7:35 PM EDT
Completed No phase listed Observational

VA Nutrition Study on Immune Function

NCT00105625
View directory record Official record
Conditions
Malnutrition, Infection, Nosocomial Infection
Interventions
Not listed
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
55 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2007
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Apr 6, 2015 · Synced Jul 20, 2026, 7:35 PM EDT
Recruiting No phase listed Observational

Food is Medicine Prospective Study

NCT07169448
View directory record Official record
Conditions
Wounds and Injuries
Interventions
Not listed
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
18 Years and older
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 19, 2026 · Synced Jul 20, 2026, 7:35 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Treatment Study of Vitamin D Deficiency in Adolescents

NCT01784029
View directory record Official record
Conditions
Vitamin D Deficiency
Interventions
Vitamin D3
Drug
Lead sponsor
Montefiore Medical Center
Other
Eligibility
13 Years to 20 Years
Enrollment
183 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Oct 15, 2018 · Synced Jul 20, 2026, 7:35 PM EDT
Completed Not applicable Interventional

Vitamin D Replacement Using Oral Thin Film (OTF) Cholecalciferol in Patients Undergoing Hematopoietic Stem Cell Transplantation

NCT04818957
View directory record Official record
Conditions
Vitamin D Deficiency, Hematopoietic Stem Cell Transplantation (HSCT)
Interventions
Oral Thin Film (OTF) Cholecalciferol (Vitamin D3)
Dietary Supplement
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
Not listed
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 1, 2023 · Synced Jul 20, 2026, 7:35 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Pharmacokinetics of Thiamine in Breastfeeding Mothers and Infants

NCT01864057
View directory record Official record
Conditions
Beriberi
Interventions
thiamine hydrochloride 100 mg
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older · Female only
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated May 28, 2013 · Synced Jul 20, 2026, 7:35 PM EDT
Completed No phase listed Observational

Studies of States With Resistance to Vitamin D and Parathyroid Hormone

NCT00001242
View directory record Official record
Conditions
Hypocalcemia, Pseudohypoparathyroidism, Osteomalacia, Rickets, Pseudopseudohpoparathyroidism
Interventions
Not listed
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
2 Months to 100 Years
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1997 – 2022
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 19, 2023 · Synced Jul 20, 2026, 7:35 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

How Does Magnesium Status Influence Calcium Homeostasis?

NCT01593501
View directory record Official record
Conditions
Magnesium Deficiency, Calcium Metabolism Disorders
Interventions
vitamin D3
Dietary Supplement
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
30 Years to 75 Years · Female only
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 31, 2016 · Synced Jul 20, 2026, 7:35 PM EDT
Withdrawn No phase listed Observational Accepts healthy volunteers

Vitamin D Ancillary Study in 5 Populations of African Origin

NCT02111902
View directory record Official record
Conditions
Cardiovascular Disease, Obesity
Interventions
Not listed
Lead sponsor
Loyola University
Other
Eligibility
25 Years to 44 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2011
U.S. locations
1
States / cities
Maywood, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 29, 2017 · Synced Jul 20, 2026, 7:35 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Pilot Study of the Effect of Dietary Fat Type and Amount on Vitamin D3 Absorption

NCT01508845
View directory record Official record
Conditions
Vitamin D Deficiency
Interventions
cholecalciferol
Dietary Supplement
Lead sponsor
Tufts University
Other
Eligibility
50 Years and older
Enrollment
61 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 20, 2014 · Synced Jul 20, 2026, 7:35 PM EDT
Completed Not applicable Interventional Results available

Nutritional Perihabilitation in Older Veterans Undergoing Surgery

NCT03073811
View directory record Official record
Conditions
Malnutrition, Nutritional Risk, Abdominal Surgery
Interventions
Protein enhanced nutrition intervention, Education Control
Dietary Supplement · Other
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
60 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 31, 2025 · Synced Jul 20, 2026, 7:35 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Ga-DOTATATE PET for Phosphaturic Mesenchymal Tumors in Patients With Tumor Induced Osteomalacia

NCT03736564
View directory record Official record
Conditions
Osteomalacia
Interventions
68Ga-DOTATATE PET/CT
Combination Product
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 29, 2025 · Synced Jul 20, 2026, 7:35 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Management of Severe Acute Malnutrition in SCD, in Northern Nigeria

NCT03634488
View directory record Official record
Conditions
Sickle Cell Anemia, Severe Acute Malnutrition
Interventions
hydroxyurea (20mg/kg/day), Ready-to-use therapeutic food
Drug · Dietary Supplement
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
5 Years to 12 Years
Enrollment
132 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Mar 26, 2024 · Synced Jul 20, 2026, 7:35 PM EDT
Completed Phase 2Phase 3 Interventional Results available

Open-Label Study of Asfotase Alfa in Infants and Children ≤ 5 Years of Age With Hypophosphatasia (HPP)

NCT01176266
View directory record Official record
Conditions
Hypophosphatasia
Interventions
asfotase alfa
Drug
Lead sponsor
Alexion Pharmaceuticals, Inc.
Industry
Eligibility
1 Minute to 5 Years
Enrollment
69 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2016
U.S. locations
3
States / cities
Oakland, California • Cincinnati, Ohio • Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 12, 2019 · Synced Jul 20, 2026, 7:35 PM EDT
Completed Phase 4 Interventional Results available

A Study of Serum Folate Levels in Patients Treated With Olaparib

NCT04024254
View directory record Official record
Conditions
Ovarian Cancer, Breast Cancer, Folic Acid Deficiency
Interventions
Folic Acid Tablet
Drug
Lead sponsor
Rush University Medical Center
Other
Eligibility
18 Years and older · Female only
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 3, 2026 · Synced Jul 20, 2026, 7:35 PM EDT
Approved For Marketing No phase listed Expanded access

Expanded Access Program for Asfotase Alfa Treatment for Patients With Infantile- or Juvenile-onset Hypophosphatasia (HPP)

NCT02496689
View directory record Official record
Conditions
Hypophosphatasia
Interventions
asfotase alfa
Biological
Lead sponsor
Alexion Pharmaceuticals, Inc.
Industry
Eligibility
Not listed
U.S. locations
2
States / cities
Lakewood, Colorado • Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 28, 2019 · Synced Jul 20, 2026, 7:35 PM EDT
Terminated Phase 2 Interventional Results available

The Energy Dose Study

NCT01369147
View directory record Official record
Conditions
Critical Illness
Interventions
Parenteral Nutrition, Propofol, Clevidipine, Dextrose-containing IV Fluids, Enteral feeding
Drug
Lead sponsor
Emory University
Other
Eligibility
18 Years to 90 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jun 9, 2022 · Synced Jul 20, 2026, 7:35 PM EDT
Completed Phase 2Phase 3 Interventional

Open Label Clinical Trial of Vitamin D in Children With Autism

NCT01535508
View directory record Official record
Conditions
Autism, Vitamin D Deficiency
Interventions
Liquid Vitamin D
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
3 Years to 8 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Oct 8, 2019 · Synced Jul 20, 2026, 7:35 PM EDT
No Longer Available No phase listed Expanded access

Compassionate Use of Triheptanoin (C7) for Inherited Disorders of Energy Metabolism

NCT01461304
View directory record Official record
Conditions
Very Long-chain acylCoA Dehydrogenase (VLCAD) Deficiency, Carnitine Palmitoyltransferase Deficiencies (CPT1, CPT2), Mitochondrial Trifunctional Protein Deficiency, Long-chain Hydroxyacyl-CoA Dehydrogenase Deficiency, Glycogen Storage Disorders, Pyruvate Carboxylase Deficiency Disease, ACYL-CoA DEHYDROGENASE FAMILY, MEMBER 9, DEFICIENCY of, Barth Syndrome
Interventions
triheptanoin
Drug
Lead sponsor
Jerry Vockley, MD, PhD
Other
Eligibility
1 Month and older
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 9, 2021 · Synced Jul 20, 2026, 7:35 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Bioavailability of Zinc and Iron From a Whey-based Protein Supplement Consumed With a Habitual Plant-based Diet

NCT02208622
View directory record Official record
Conditions
Nutritional Deficiency
Interventions
Study 1: Whey Supplement Day 1, Study 1: Whey Supplement Day 2, Study 2: Whey Supplement
Dietary Supplement
Lead sponsor
University of Colorado, Denver
Other
Eligibility
2 Years to 3 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2018
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jul 4, 2019 · Synced Jul 20, 2026, 7:35 PM EDT
Terminated Phase 2 Interventional Results available

Safety, Efficacy, PK and PD of CTAP101 (Calcifediol) ER Capsules for SHPT in HD Patients VDI

NCT03602261
View directory record Official record
Conditions
Secondary Hyperparathyroidism Due to Renal Causes, Chronic Kidney Diseases, Vitamin D Deficiency, Stage 5 Chronic Kidney Disease
Interventions
Calcifediol Oral Capsule, Placebo oral capsule
Drug
Lead sponsor
OPKO Health, Inc.
Industry
Eligibility
18 Years and older
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
18
States / cities
Peoria, Arizona • Phoenix, Arizona • Cypress, California + 13 more
Source: ClinicalTrials.gov public record
Updated Apr 2, 2026 · Synced Jul 20, 2026, 7:35 PM EDT
Completed No phase listed Observational Results available

Comparison of Nutrition Risk Screens

NCT02585245
View directory record Official record
Conditions
Malnutrition
Interventions
Not listed
Lead sponsor
ThedaCare
Other
Eligibility
18 Years to 110 Years
Enrollment
607 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
2
States / cities
Appleton, Wisconsin • Neenah, Wisconsin
Source: ClinicalTrials.gov public record
Updated Nov 5, 2017 · Synced Jul 20, 2026, 7:35 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Cash Plus Interventions for Prevention of Acute Malnutrition in Children Under 5 and Their Mothers in Somalia

NCT06642012
View directory record Official record
Conditions
Malnutrition, Child, Wasting Disease, Stunting, Malnutrition, Malnutrition, Mother
Interventions
Cash only, Cash + Social Behavior Change Communication, Cash + top-up cash
Other
Lead sponsor
Johns Hopkins Bloomberg School of Public Health
Other
Eligibility
6 Months and older
Enrollment
3,384 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 7, 2025 · Synced Jul 20, 2026, 7:35 PM EDT
Completed Not applicable Interventional

Enhancing Health and Quality of Life for Individuals With Dementia Through Transitional-State Snacks

NCT05007730
View directory record Official record
Conditions
Dementia, Nutrition Poor
Interventions
Transitional-state food therapeutic nutrition supplement
Dietary Supplement
Lead sponsor
University of Oregon
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
2
States / cities
Eugene, Oregon • Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Dec 17, 2025 · Synced Jul 20, 2026, 7:35 PM EDT