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Showing 1–24 of 1,572 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Nutritional Deficiencies Clear all
Completed No phase listed Observational Results available

PEU in Elderly TCU Residents

NCT00242684
View directory record Official record
Conditions
Aging
Interventions
Not listed
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
64 Years and older
Enrollment
446 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2012
U.S. locations
1
States / cities
No. Little Rock, Arkansas
Source: ClinicalTrials.gov public record
Updated Apr 23, 2015 · Synced Sep 7, 2026, 5:27 PM EDT
Completed No phase listed Observational

Laparoscopic Revision of Jejunoileal Bypass to Gastric Bypass

NCT01040533
View directory record Official record
Conditions
Clinically Severe Obesity, Metabolic Complications After Jejunoileal Bypass, Nutritional Complications After Jejunoileal Bypass, Obesity Recidivism, Inadequate Initial Weight Loss, Intestinal Malabsorptive Syndrome, Protein Malnutrition
Interventions
Not listed
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 65 Years
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
Fresno, California
Source: ClinicalTrials.gov public record
Updated Dec 28, 2009 · Synced Sep 7, 2026, 5:27 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Impact of Vitamin D Supplementation on Cardiometabolic Risk Factors [The Daily D Health Study]

NCT01537809
View directory record Official record
Conditions
Vitamin D Deficiency
Interventions
Vitamin D3
Dietary Supplement
Lead sponsor
Tufts University
Other
Eligibility
9 Years to 14 Years
Enrollment
691 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 12, 2013 · Synced Sep 7, 2026, 5:27 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Nutrition, Vision, and Cognition in Sport Study: Beef

NCT04427852
View directory record Official record
Conditions
Cognitive Change, Nutrient Deficiency, Nutritional Anemia, Visual Spatial Processing, Diet, Healthy, Diet; Deficiency, Dietary Deficiency, Dietary B12 Deficiency, Dietary Zinc Deficiency, Dietary Vitamin B12 Deficiency Anemia, Dietary Deficiency of Selenium and Vitamin E
Interventions
30 day Daily consumption of 1 serving of beef, 30 day Daily consumption of 1 serving of the vegatable protein source
Dietary Supplement
Lead sponsor
Texas A&M University
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
College Station, Texas
Source: ClinicalTrials.gov public record
Updated Sep 28, 2025 · Synced Sep 7, 2026, 5:27 PM EDT
Completed Phase 3 Interventional Results available

Ferric Carboxymaltose (FCM) Assessment in Subjects With Iron Deficiency Anaemia and Non-dialysis-dependent Chronic Kidney Disease (NDD-CKD)

NCT00994318
View directory record Official record
Conditions
Iron Deficiency Anaemia, Chronic Kidney Disease
Interventions
FCM (Ferric carboxymaltose) high ferritin target, FCM (Ferric carboxymaltose) low ferritin target, Oral Iron (Ferrous sulphate)
Drug
Lead sponsor
Vifor Pharma
Industry
Eligibility
18 Years and older
Enrollment
626 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
1
States / cities
Wilmington, North Carolina
Source: ClinicalTrials.gov public record
Updated May 19, 2014 · Synced Sep 7, 2026, 5:27 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Social Network Interventions in Rural Honduras

NCT01672580
View directory record Official record
Conditions
Malnutrition, Dysentery, Social Transmission of Health Behaviors
Interventions
exposure to vitamin use, exposure to water chlorination, high in-degree, nominated by random
Behavioral
Lead sponsor
Harvard University
Other
Eligibility
15 Years and older
Enrollment
5,773 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 18, 2015 · Synced Sep 7, 2026, 5:27 PM EDT
Completed Phase 2 Interventional Results available

A Trial of Tocilizumab in ALS Subjects

NCT02469896
View directory record Official record
Conditions
ALS, Amyotrophic Lateral Sclerosis, Lou Gehrig's Disease, Motor Neuron Disease
Interventions
Tocilizumab, Placebo
Drug · Other
Lead sponsor
Barrow Neurological Institute
Other
Eligibility
18 Years to 75 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
5
States / cities
Phoenix, Arizona • Kansas City, Kansas • Boston, Massachusetts + 2 more
Source: ClinicalTrials.gov public record
Updated Dec 17, 2019 · Synced Sep 7, 2026, 5:27 PM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Calcimimetics in Hypophosphatemic Rickets

NCT00844740
View directory record Official record
Conditions
Familial Hypophosphatemic Rickets
Interventions
Cinacalcet
Drug
Lead sponsor
Children's Mercy Hospital Kansas City
Other
Eligibility
5 Years to 21 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
1
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Dec 16, 2020 · Synced Sep 7, 2026, 5:27 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A First in Human Study of ORT247 in Healthy Volunteers

NCT06769620
View directory record Official record
Conditions
Amyotrophic Lateral Sclerosis (ALS)
Interventions
ORT247, Placebo
Drug
Lead sponsor
Orthogonal Neuroscience Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
44 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Jan 14, 2025 · Synced Sep 7, 2026, 5:27 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Study of ALS Reversals 2: Genetic Analyses

NCT03464903
View directory record Official record
Conditions
Amyotrophic Lateral Sclerosis, Progressive Muscular Atrophy
Interventions
Not listed
Lead sponsor
Duke University
Other
Eligibility
Not listed
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2023
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 10, 2024 · Synced Sep 7, 2026, 5:27 PM EDT
Completed Not applicable Interventional Results available

Vitamin D Replacement After Kidney Transplant

NCT00748618
View directory record Official record
Conditions
Kidney Transplantation, Vitamin D Deficiency
Interventions
Standard vitamin D3 treatment, High dose vitamin D3 treatment
Dietary Supplement
Lead sponsor
University of Nebraska
Other
Eligibility
19 Years and older
Enrollment
116 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2023
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Oct 25, 2024 · Synced Sep 7, 2026, 5:27 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Iron Source on the Growth of Enteric Pathogens

NCT05314062
View directory record Official record
Conditions
Iron-deficiency, Iron Deficiency Anemia, Iron Deficiency Anemia Treatment
Interventions
FeSO4, Ao iron
Dietary Supplement
Lead sponsor
Florida State University
Other
Eligibility
5 Years to 12 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Tallahassee, Florida
Source: ClinicalTrials.gov public record
Updated Jun 21, 2022 · Synced Sep 7, 2026, 5:27 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 Sep 7, 2026, 5:27 PM EDT
Terminated Phase 2 Interventional Results available

Vitamin D3 Treatment in Pediatric Systemic Lupus Erythematosus

NCT01709474
View directory record Official record
Conditions
Systemic Lupus Erythematosus
Interventions
Vitamin D3 6000 IU, Vitamin D3 400 IU
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
5 Years to 20 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
13
States / cities
Los Angeles, California • Palo Alto, California • San Francisco, California + 9 more
Source: ClinicalTrials.gov public record
Updated Dec 16, 2015 · Synced Sep 7, 2026, 5:27 PM EDT
Not listed Phase 1Phase 2 Interventional

Determining the Safety of L-serine in ALS

NCT01835782
View directory record Official record
Conditions
Amyotrophic Lateral Sclerosis (ALS)
Interventions
L-Serine
Drug
Lead sponsor
Phoenix Neurological Associates, LTD
Other
Eligibility
18 Years to 85 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2013
U.S. locations
2
States / cities
Phoenix, Arizona • San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jul 29, 2015 · Synced Sep 7, 2026, 5:27 PM EDT
Completed Phase 3 Interventional

Efficacy and Safety Study of KIACTA in Preventing Renal Function Decline in AA Amyloidosis

NCT01215747
View directory record Official record
Conditions
Amyloidosis
Interventions
KIACTA (eprodisate disodium), Placebo
Drug
Lead sponsor
C.T. Development America, Inc.
Industry
Eligibility
18 Years to 80 Years
Enrollment
261 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2016
U.S. locations
3
States / cities
Glendale, California • Boston, Massachusetts • Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 9, 2016 · Synced Sep 7, 2026, 5:27 PM EDT
Recruiting Phase 2 Interventional

Usnoflast Neuromuscular Investigation for Treatment Efficacy in Amyotrophic Lateral Sclerosis

NCT07023835
View directory record Official record
Conditions
Amyotrophic Lateral Sclerosis (ALS)
Interventions
50 mg Usnoflast, 75 mg Usnoflast, Placebo
Drug
Lead sponsor
Zydus Therapeutics Inc.
Industry
Eligibility
18 Years and older
Enrollment
240 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
15
States / cities
La Jolla, California • Orange, California • San Francisco, California + 12 more
Source: ClinicalTrials.gov public record
Updated Aug 31, 2026 · Synced Sep 7, 2026, 5:27 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Comparative Effectiveness of Vitamin D and Repletion Strategies

NCT01524874
View directory record Official record
Conditions
Hypovitaminosis D, Insulin Resistance, Diabetes
Interventions
Vitamin D3
Dietary Supplement
Lead sponsor
Bastyr University
Other
Eligibility
18 Years to 65 Years
Enrollment
66 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
2
States / cities
Kailua-Kona, Hawaii • Kenmore, Washington
Source: ClinicalTrials.gov public record
Updated Feb 1, 2012 · Synced Sep 7, 2026, 5:27 PM EDT
Completed Phase 1 Interventional

A Study of KRN23 in X-linked Hypophosphatemia

NCT00830674
View directory record Official record
Conditions
X-linked Hypophosphatemia
Interventions
Placebo, KRN23
Drug
Lead sponsor
Kyowa Kirin Co., Ltd.
Industry
Eligibility
18 Years and older
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2013
U.S. locations
4
States / cities
New Haven, Connecticut • Indianapolis, Indiana • Durham, North Carolina + 1 more
Source: ClinicalTrials.gov public record
Updated Jun 16, 2024 · Synced Sep 7, 2026, 5:27 PM EDT
Terminated Not applicable Interventional

Gemcitabine Compared With Pancreatic Enzyme Therapy Plus Specialized Diet (Gonzalez Regimen) in Treating Patients Who Have Stage II, Stage III, or Stage IV Pancreatic Cancer

NCT00003851
View directory record Official record
Conditions
Malnutrition, Pancreatic Cancer
Interventions
proteolytic enzymes, gemcitabine hydrochloride, Gonzalez regimen
Biological · Drug · Procedure
Lead sponsor
Columbia University
Other
Eligibility
18 Years to 65 Years
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2004
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 14, 2013 · Synced Sep 7, 2026, 5:27 PM EDT
Terminated No phase listed Observational

Pennsylvania Consortium: Clinical Database

NCT00718445
View directory record Official record
Conditions
Amyotrophic Lateral Sclerosis, Neurodegenerative Disease, Motor Neuron Disease
Interventions
Not listed
Lead sponsor
Drexel University College of Medicine
Other
Eligibility
18 Years to 89 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2015
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 26, 2016 · Synced Sep 7, 2026, 5:27 PM EDT
Recruiting Not applicable Interventional

Randomized Evaluation of Voucher Interventions for Value and Effectiveness (REVIVE) in Philippines

NCT07640594
View directory record Official record
Conditions
Food Insecurity, Undernutrition, Diet Quality, Nutrition Knowledge
Interventions
Food Voucher + SBCC (PhP 3,000), Food Voucher + SBCC (PhP 5,000), Food Voucher + SBCC (PhP 8,000)
Behavioral
Lead sponsor
International Food Policy Research Institute
Other
Eligibility
0 Months to 99 Years
Enrollment
5,320 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Jun 9, 2026 · Synced Sep 7, 2026, 5:27 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 Sep 7, 2026, 5:27 PM EDT
Recruiting Phase 4 Interventional

Longitudinal Multi-Modality Imaging in Progressive Apraxia of Speech

NCT01818661
View directory record Official record
Conditions
PPA, Non-fluent Aphasia, Apraxia of Speech, Primary Progressive Non-fluent Aphasia, Primary Progressive Aphasia
Interventions
AV-1451
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2028
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Nov 11, 2025 · Synced Sep 7, 2026, 5:27 PM EDT