Independent directory Public ClinicalTrials.gov records United States
Clinical Trials Finder
Objective public record navigation
Search Results

Search by objective public record fields.

Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results come from ClinicalTrials.gov. When the live registry is unavailable, a clearly labeled stored copy may be shown.

Clear filters

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 20, 2026, 7:17 AM EDT

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

Showing 145–168 of 604 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Dietary Deficiency Clear all
Completed No phase listed Observational

Prevalence of Malnutrition and/or Sarcopenia at Hospital Admission

NCT02990520
View directory record Official record
Conditions
Malnutrition, Sarcopenia
Interventions
Not listed
Lead sponsor
The University of Texas Medical Branch, Galveston
Other
Eligibility
65 Years and older
Enrollment
190 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2024
U.S. locations
1
States / cities
Galveston, Texas
Source: ClinicalTrials.gov public record
Updated Dec 19, 2024 · Synced Oct 20, 2026, 7:17 AM EDT
Completed Phase 3 Interventional Results available

Safety and Efficacy of 0.75% Phentolamine Ophthalmic Solution in Subjects With Post-refractive Surgery Visual Disturbances

NCT06349759
View directory record Official record
Conditions
Mesopic Vision, Night Vision Loss
Interventions
phentolamine ophthalmic solution 0.75%, a non-selective alpha-1 and alpha-2 adrenergic antagonist, Placebo
Drug
Lead sponsor
Opus Genetics, Inc
Industry
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
25
States / cities
Pheonix, Arizona • Scottsdale, Arizona • Bakersfield, California + 20 more
Source: ClinicalTrials.gov public record
Updated Aug 18, 2026 · Synced Oct 20, 2026, 7:17 AM EDT
Recruiting Not applicable Interventional

Copper Supplementation in Cirrhosis

NCT07471542
View directory record Official record
Conditions
Cirrhosis, Chronic Liver Disease, Fibrosis, Infection
Interventions
Copper Gluconate
Dietary Supplement
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Mar 13, 2026 · Synced Oct 20, 2026, 7:17 AM EDT
Completed Not applicable Interventional

Interaction of Cobalamin Status With Nitrous Oxide in Relation to Postoperative Cognitive Changes in the Elderly

NCT00212147
View directory record Official record
Conditions
Avitaminosis, Delirium, Dementia, Amnestic, Cognitive Disorders
Interventions
General anesthesia with nitrous oxide, General anesthesia without nitrous oxide
Drug
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
60 Years and older
Enrollment
444 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2008
U.S. locations
2
States / cities
Brooklyn, New York • New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 8, 2022 · Synced Oct 20, 2026, 7:17 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Study Vitamin D in Healthy Individuals

NCT02250625
View directory record Official record
Conditions
Vitamin D Deficiency
Interventions
Not listed
Lead sponsor
Fujirebio Diagnostics, Inc.
Industry
Eligibility
Not listed
Enrollment
482 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Mountain View, California
Source: ClinicalTrials.gov public record
Updated May 22, 2015 · Synced Oct 20, 2026, 7:17 AM EDT
Withdrawn Phase 4 Interventional

Study to Assess Safety and Efficacy of Kabiven® in Pediatric Patients 2 to 16 Years of Age

NCT03481894
View directory record Official record
Conditions
Malnutrition
Interventions
Kabiven®, Compounded standard parenteral nutrition
Drug
Lead sponsor
Fresenius Kabi
Industry
Eligibility
2 Years to 16 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
2
States / cities
Chicago, Illinois • Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Sep 4, 2019 · Synced Oct 20, 2026, 7:17 AM EDT
Withdrawn No phase listed Observational

Neurodevelopmental Outcome of Early Dietary Lysine Restriction in Pyridoxine Dependent Epilepsy Patients

NCT01795170
View directory record Official record
Conditions
Pyridoxine Dependant Epilepsy
Interventions
Lysine Restricted Diet, Pyridoxine
Dietary Supplement · Drug
Lead sponsor
University of British Columbia
Other
Eligibility
3 Months to 3 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
2
States / cities
Aurora, Colorado • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Sep 30, 2014 · Synced Oct 20, 2026, 7:17 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Environmental & Genetic Influences on Vitamin D Status

NCT01208636
View directory record Official record
Conditions
Vitamin D Deficiency
Interventions
Not listed
Lead sponsor
Creighton University
Other
Eligibility
18 Years to 60 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Sep 24, 2010 · Synced Oct 20, 2026, 7:17 AM EDT
Recruiting Early Phase 1 Interventional

The Impact of Phosphate Metabolism on Healthy Aging

NCT03771105
View directory record Official record
Conditions
Hypophosphatemia, Rickets, Hypercalciuria, XLH, HHRH
Interventions
phosphate
Drug
Lead sponsor
Yale University
Other
Eligibility
13 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2028
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated May 27, 2026 · Synced Oct 20, 2026, 7:17 AM EDT
Completed Phase 4 Interventional

Osteopenia and Renal Osteodystrophy: Evaluation and Management

NCT00108394
View directory record Official record
Conditions
Osteopenia, Renal Osteodystrophy
Interventions
pamidronate
Drug
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2007
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jan 21, 2009 · Synced Oct 20, 2026, 7:17 AM EDT
Completed Phase 1Phase 2 Interventional

Use of a Nutritional Supplement to Treat Diabetic Symptoms in HIV-Infected Adults

NCT00109746
View directory record Official record
Conditions
Insulin Resistance, HIV Infections
Interventions
chromium picolinate
Dietary Supplement
Lead sponsor
National Center for Complementary and Integrative Health (NCCIH)
NIH
Eligibility
18 Years and older
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2010
U.S. locations
1
States / cities
Stony Brook, New York
Source: ClinicalTrials.gov public record
Updated Mar 23, 2016 · Synced Oct 20, 2026, 7:17 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Vitamin D Sulfates in Breastmilk

NCT06203041
View directory record Official record
Conditions
Vitamin D Deficiency, Breast Milk Collection
Interventions
Vitamin D
Dietary Supplement
Lead sponsor
Mayo Clinic
Other
Eligibility
1 Month to 60 Years
Enrollment
101 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated May 13, 2026 · Synced Oct 20, 2026, 7:17 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Video Chat During Meals to Improve Nutritional Intake in Older Adults

NCT04862312
View directory record Official record
Conditions
Malnutrition, Loneliness
Interventions
VideoDine
Behavioral
Lead sponsor
Cornell University
Other
Eligibility
60 Years to 95 Years
Enrollment
33 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Ithaca, New York
Source: ClinicalTrials.gov public record
Updated Sep 26, 2022 · Synced Oct 20, 2026, 7:17 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Vitamin D Increases Serum Levels of the Soluble Receptor for Advanced Glycation End Products in Women With PCOS

NCT03644212
View directory record Official record
Conditions
Polycystic Ovary Syndrome, Vitamin D Deficiency
Interventions
Vitamin D3
Drug
Lead sponsor
Maimonides Medical Center
Other
Eligibility
16 Years to 48 Years · Female only
Enrollment
79 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Brooklyn, New York
Source: ClinicalTrials.gov public record
Updated Jan 13, 2020 · Synced Oct 20, 2026, 7:17 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

The Role of Vitamin D in Menopause: Relationship to Menopausal Symptoms in Body Composition

NCT01141972
View directory record Official record
Conditions
Hot Flushes, Menopause, Premature, Obesity, Vitamin D Deficiency
Interventions
Vitamin D, Placebo
Dietary Supplement · Other
Lead sponsor
Kaiser Permanente
Other
Eligibility
40 Years to 60 Years · Female only
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated May 30, 2013 · Synced Oct 20, 2026, 7:17 AM EDT
Completed No phase listed Observational Results available

A Retrospective Study of the Natural History of Patients With Severe Perinatal and Infantile Hypophosphatasia (HPP)

NCT01419028
View directory record Official record
Conditions
Hypophosphatasia (HPP)
Interventions
Not listed
Lead sponsor
Alexion Pharmaceuticals, Inc.
Industry
Eligibility
Not listed
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
5
States / cities
Los Angeles, California • Indianapolis, Indiana • St Louis, Missouri + 2 more
Source: ClinicalTrials.gov public record
Updated Apr 1, 2019 · Synced Oct 20, 2026, 7:17 AM EDT
Recruiting Phase 2 Interventional

Impact of Vitamin D Supplementation on the Rate of Pathologic Complete Response in Vitamin D Deficient Patients

NCT04677816
View directory record Official record
Conditions
Triple Negative Breast Cancer, Vitamin D Deficiency, Invasive Breast Cancer
Interventions
Standard of Care Neoadjuvant Chemotherapy (NAC), Vitamin D3, Drug Diary
Drug · Dietary Supplement · Other
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 28, 2026 · Synced Oct 20, 2026, 7:17 AM EDT
Completed Not applicable Interventional

Correction of Vitamin D Inadequacy in Nursing Home Residents

NCT00204906
View directory record Official record
Conditions
Hypovitaminosis D
Interventions
vitamin D supplementation
Dietary Supplement
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2005
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 5, 2015 · Synced Oct 20, 2026, 7:17 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Vitamin D Deficiency in Elderly African American Women in Central Texas

NCT01971411
View directory record Official record
Conditions
Vitamin D Deficiency, Osteoporosis, Osteopenia
Interventions
Calcium 500mg with 200 IU Vitamin D - 2 tablets daily, Blood levels of Vitamin D, Serum CTX, Mg, Ca++ and iPTH, Usual sun exposure documentation, Dietary intake of calcium, vitamin D, magnesium
Drug · Procedure · Behavioral
Lead sponsor
McLennan County Medical Education and Research Foundation
Other
Eligibility
70 Years and older · Female only
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
1
States / cities
Waco, Texas
Source: ClinicalTrials.gov public record
Updated Mar 30, 2018 · Synced Oct 20, 2026, 7:17 AM EDT
Not listed Phase 1 Interventional Accepts healthy volunteers

Research Study of Nutritional Methods to Reduce Body Fat Percentages in Overweight and Obese Populations

NCT00487344
View directory record Official record
Conditions
Obesity
Interventions
Non-Personalized Meal Planning, Personalized Meal Planning and Dietetic Consultation
Procedure
Lead sponsor
Central FITT, Inc
Other
Eligibility
25 Years to 45 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007
U.S. locations
1
States / cities
Edmond, Oklahoma
Source: ClinicalTrials.gov public record
Updated Jul 3, 2007 · Synced Oct 20, 2026, 7:17 AM EDT
Completed Not applicable Interventional

Bioavailability and Biological Effects of Vitamin D2 Contained in Mushroom

NCT01488734
View directory record Official record
Conditions
Vitamin D Deficiency, Metabolic Syndrome, Prediabetes
Interventions
Mushroom with 600 IU vitamin D2, Mushroom with 4000 IU Vitamin D2, 600 IU Vitamin D3 and untreated mushroom, 4000 IU Vitamin D3 and untreated mushroom, Placebo
Dietary Supplement · Drug
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
30 Years to 90 Years
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 14, 2017 · Synced Oct 20, 2026, 7:17 AM EDT
Completed Phase 3 Interventional Results available

Cholecalciferol Supplementation for Sepsis in the ICU

NCT01896544
View directory record Official record
Conditions
Hypovitaminosis D
Interventions
Cholecalciferol, Placebo
Dietary Supplement
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 13, 2016 · Synced Oct 20, 2026, 7:17 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Sunlight Exposures Effect on Serum Vitamin D Levels

NCT00473317
View directory record Official record
Conditions
Vitamin D Deficiency
Interventions
Sun Exposure
Behavioral
Lead sponsor
Creighton University
Other
Eligibility
19 Years to 50 Years
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Apr 1, 2008 · Synced Oct 20, 2026, 7:17 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Vitamin D and Calcium Study

NCT00857831
View directory record Official record
Conditions
Spinal Cord Injury
Interventions
Vitamin D and Calcium
Dietary Supplement
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
18 Years to 75 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2012
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Oct 3, 2012 · Synced Oct 20, 2026, 7:17 AM EDT