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ClinicalTrials.gov public records Last synced May 22, 2026, 1:36 AM EDT

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

Showing 1–18 of 18 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Folic Acid Deficiency Clear all
Completed No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Neural Tube Defects, Folic Acid Deficiency, Spina Bifida, Anencephaly-Spina Bifida, B12 Deficiency Vitamin, Anemia, Iron Deficiency Anaemia Due to Dietary Causes
Interventions
Micronutrient fortified iodized salt
Dietary Supplement
Lead sponsor
Hydrocephalus and Neuroscience Institute
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Orlando, Florida
Source: ClinicalTrials.gov public record
Updated Jul 13, 2025 · Synced May 22, 2026, 1:36 AM EDT
Completed No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Autism, Autism Spectrum Disorder, Autistic Disorder, Pregnancy Related, Diet, Healthy, Diet; Deficiency, Folate Deficiency, Folic Acid Deficiency, Folic Acid Overdose
Interventions
Survey
Other
Lead sponsor
Walden University
Other
Eligibility
18 Years and older · Female only
Enrollment
239 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 19, 2023 · Synced May 22, 2026, 1:36 AM EDT
Completed Phase 3 Interventional
View directory record Official record
Conditions
Pneumonia, Pneumocystis Carinii, HIV Infections
Interventions
Trimetrexate glucuronate, Pentamidine isethionate, Sulfamethoxazole-Trimethoprim, Leucovorin calcium
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
12 Years and older
Enrollment
364 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 1991
U.S. locations
23
States / cities
Los Angeles, California • Washington D.C., District of Columbia • Miami, Florida + 15 more
Source: ClinicalTrials.gov public record
Updated Nov 3, 2021 · Synced May 22, 2026, 1:36 AM EDT
Completed Not applicable Interventional
View directory record Official record
Conditions
End Stage Renal Disease, Hyperhomocysteinemia
Interventions
cyanocobalamin, folic acid, pyridoxine
Drug
Lead sponsor
Georgetown University
Other
Eligibility
21 Years to 89 Years
Enrollment
84 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2000
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Mar 24, 2015 · Synced May 22, 2026, 1:36 AM EDT
Completed Phase 4 Interventional Results available
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 May 22, 2026, 1:36 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Neural Tube Defects, Folic Acid Deficiency, Fortification
Interventions
Salt with folic acid and iodine
Dietary Supplement
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Jul 31, 2023 · Synced May 22, 2026, 1:36 AM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Folate Deficiency, Neural Tube Defects
Interventions
Fortified Iodized Salt with Folic Acid (FISFA)
Dietary Supplement
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
250 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Mar 10, 2026 · Synced May 22, 2026, 1:36 AM EDT
Completed Phase 1 Interventional
View directory record Official record
Conditions
Pneumonia, Pneumocystis Carinii, HIV Infections
Interventions
Trimetrexate glucuronate, Leucovorin calcium
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 60 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 1989
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Nov 3, 2021 · Synced May 22, 2026, 1:36 AM EDT
Completed Phase 3 Interventional
View directory record Official record
Conditions
Pneumonia, Pneumocystis Carinii, HIV Infections
Interventions
Trimetrexate glucuronate, Leucovorin calcium
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
12 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2004
U.S. locations
1
States / cities
Morris Plains, New Jersey
Source: ClinicalTrials.gov public record
Updated Dec 18, 2012 · Synced May 22, 2026, 1:36 AM EDT
Terminated No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Pregnancy
Interventions
Néevo®/ NéevoDHA®
Other
Lead sponsor
Pamlab, Inc.
Industry
Eligibility
18 Years to 39 Years · Female only
Enrollment
53 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Corpus Christi, Texas
Source: ClinicalTrials.gov public record
Updated Apr 30, 2013 · Synced May 22, 2026, 1:36 AM EDT
Completed Not applicable Interventional
View directory record Official record
Conditions
HIV Infections
Interventions
Thiamine hydrochloride, Riboflavin
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
13 Years and older
Enrollment
225 participants
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
3
States / cities
New York, New York • Chapel Hill, North Carolina • Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 27, 2011 · Synced May 22, 2026, 1:36 AM EDT
Completed No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Neural Tube Defects, Folic Acid Deficiency, Spina Bifida, Anencephaly-Spina Bifida
Interventions
Folic acid fortified iodized salt
Dietary Supplement
Lead sponsor
Hydrocephalus and Neuroscience Institute
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Orlando, Florida
Source: ClinicalTrials.gov public record
Updated Dec 18, 2023 · Synced May 22, 2026, 1:36 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Pregnancy, Autistic Disorder, Folic Acid Deficiency
Interventions
Prenatal supplement
Dietary Supplement
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older · Female only
Enrollment
59 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Scottsdale, Arizona
Source: ClinicalTrials.gov public record
Updated Oct 18, 2020 · Synced May 22, 2026, 1:36 AM EDT
Terminated No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Anemia in Pregnancy, Pre-eclampsia
Interventions
Neevo®, Prenatal vitamins
Other
Lead sponsor
Pamlab, L.L.C.
Industry
Eligibility
21 Years to 39 Years · Female only
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
3
States / cities
Chickasha, Oklahoma • Norman, Oklahoma
Source: ClinicalTrials.gov public record
Updated Nov 22, 2011 · Synced May 22, 2026, 1:36 AM EDT
Completed No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Anemia in Pregnancy, Preeclampsia
Interventions
Neevo® (a medical food), Prenatal vitamins (≤1mg folic acid, 27 - 35mg iron, and ≤12mcg vitamin B12)
Other
Lead sponsor
Pamlab, Inc.
Industry
Eligibility
21 Years to 39 Years · Female only
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
3
States / cities
Sheffield, Alabama • Flowood, Mississippi • Gainesville, Texas
Source: ClinicalTrials.gov public record
Updated Apr 15, 2013 · Synced May 22, 2026, 1:36 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Folate Deficiency
Interventions
Methyl Folate, Placebo
Dietary Supplement
Lead sponsor
Oklahoma State University Center for Health Sciences
Other
Eligibility
18 Years to 24 Years · Female only
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2024
U.S. locations
1
States / cities
Tulsa, Oklahoma
Source: ClinicalTrials.gov public record
Updated Aug 15, 2023 · Synced May 22, 2026, 1:36 AM EDT
Terminated Phase 3 Interventional
View directory record Official record
Conditions
Pneumonia, Pneumocystis Carinii, HIV Infections
Interventions
Trimetrexate glucuronate, Methylprednisolone, Pentamidine isethionate, Sulfamethoxazole-Trimethoprim, Leucovorin calcium
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
12 Years and older
Enrollment
240 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 1989
U.S. locations
1
States / cities
West Columbia, South Carolina
Source: ClinicalTrials.gov public record
Updated Nov 2, 2021 · Synced May 22, 2026, 1:36 AM EDT
Recruiting No phase listed Observational
View directory record Official record
Conditions
Neurodevelopmental Disorders, Autism Spectrum Disorder, Pediatric Autoimmune Neuropsychiatric Disorder Associated With Streptococcal Infection, Pediatric Acute-Onset Neuropsychiatric Syndrome, Down Syndrome, Epilepsy, Mitochondrial Encephalomyopathies, Cerebral Folate Deficiency
Interventions
Not listed
Lead sponsor
Richard Frye
Other
Eligibility
Not listed
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2030
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Apr 15, 2026 · Synced May 22, 2026, 1:36 AM EDT