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Results for “Night Blindness”

78 trials

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Showing 20 of 78 results

Not applicableStudy completedNCT05872061
What this trial is testing

Senegal Market Study for Food-to-Food Fortified (F2F) Instant Porridge Flours

Who this might be right for
Iron-deficiencyVitamin A Deficiency
Purdue University 1,800
Not applicableLooking for participantsNCT02435940
What this trial is testing

Inherited Retinal Degenerative Disease Registry

Who this might be right for
Eye Diseases HereditaryRetinal DiseaseAchromatopsia+25 more
Foundation Fighting Blindness 20,000
Not applicableUnknownNCT03971604
What this trial is testing

The Correlation Between Vitamin A / E Levels and Preeclampsia

Who this might be right for
PreeclampsiaVitamin A DeficiencyVitamin E Deficiency
Second Affiliated Hospital, School of Medicine, Zhejiang University 300
Not applicableStudy completedNCT02909985
What this trial is testing

Visual Activity Evoked by Infrared in Humans After Dark Adaptation

Who this might be right for
Age Related Macular DegenerationRetinitis PigmentosaCongenital Stationary Night Blindness+1 more
University of New Mexico 21
Not applicableStudy completedNCT01922713
What this trial is testing

Effect of Daily Consumption of Orange Maize on Breast Milk Retinol in Lactating Zambian Women

Who this might be right for
Vitamin A Deficiency
University of California, Davis 149
Testing effectiveness (Phase 2)Ended earlyNCT05085964
What this trial is testing

An Open-Label Extension Study to Evaluate Safety & Tolerability of QR-421a in Subjects With Retinitis Pigmentosa

Who this might be right for
Retinitis PigmentosaUsher Syndrome Type 2
Laboratoires Thea 21
Testing effectiveness (Phase 2)Looking for participantsNCT06450925
What this trial is testing

Vitamin A Supplementation in Allogeneic Stem Cell Transplantation.

Who this might be right for
Graft Vs Host DiseaseVitamin A DeficiencyVitamin D Deficiency
Children's Hospital Medical Center, Cincinnati 190
Large-scale testing (Phase 3)Study completedNCT01695148
What this trial is testing

Efficacy of β-carotene Biofortified Maize in Reducing Vitamin A Deficiency Among Children

Who this might be right for
Vitamin A DeficiencyLow Serum Retinol
Johns Hopkins Bloomberg School of Public Health 1,228
Not applicableStudy completedNCT01583972
What this trial is testing

Efficacy of Newborn Vitamin A Supplementation in Improving Immune Function

Who this might be right for
Vitamin A Deficiency
USDA, Western Human Nutrition Research Center 300
Very early researchStudy completedNCT01199445
What this trial is testing

Efficacy of Vitamin A in Fortified Extruded Rice in School Children

Who this might be right for
Vitamin A Deficiency
Swiss Federal Institute of Technology 50
Not applicableStudy completedNCT04123210
What this trial is testing

Estimating Average Vitamin A Requirements in Indonesian and American Women

Who this might be right for
Vitamin A Deficiency
University of Wisconsin, Madison 70
Large-scale testing (Phase 3)Study completedNCT00198822
What this trial is testing

Impact of Maternal Vitamin A or Beta-Carotene Supplementation on Maternal and Infant Mortality in Bangladesh

Who this might be right for
Vitamin A DeficiencyMaternal MortalityInfant Mortality
Johns Hopkins Bloomberg School of Public Health 59,666
Not applicableStudy completedNCT02363985
What this trial is testing

Using Stable Isotope Techniques to Monitor and Assess the Vitamin A Status of Children Susceptible to Infection

Who this might be right for
Vitamin A Deficiency
Ethiopian Public Health Institute 138
Not applicableStudy completedNCT04632771
What this trial is testing

Nutritional Status and Bouillon Use in Northern Ghana

Who this might be right for
Iron DeficiencyVitamin A DeficiencyVitamin B 12 Deficiency+4 more
University of California, Davis 995
Not applicableLooking for participantsNCT07335991
What this trial is testing

Effect of Vitamin A Supplementation on Idiopathic Scoliosis

Who this might be right for
Vitamin A DeficiencyIdiopathic Scoliosis
Second Affiliated Hospital of Wenzhou Medical University 140
Not applicableStudy completedNCT03305042
What this trial is testing

Vitamin A Liver Reserves and Serum Markers of Vitamin A in US Adults at Time of Death

Who this might be right for
Vitamin A DeficiencyVitamin A Toxicity
University of Wisconsin, Madison 27
Large-scale testing (Phase 3)Active Not RecruitingNCT06349759
What this trial is testing

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

Who this might be right for
Mesopic VisionNight Vision Loss
Ocuphire Pharma, Inc. 200
Large-scale testing (Phase 3)Study completedNCT02804490
What this trial is testing

Efficacy of Biofortified Maize to Improve Maternal and Infant Vitamin A Status

Who this might be right for
Vitamin A Deficiency
Johns Hopkins Bloomberg School of Public Health 255
Not applicableStudy completedNCT06391437
What this trial is testing

Prevalence Of Vitamin A Deficiency In Critically Ill Children With Sepsis And Its Association With Clinical Outcomes

Who this might be right for
Vitamin A Deficiency in Children
Benha University 220
Not applicableStudy completedNCT00374023
What this trial is testing

A Study on Immunological Effect of Vitamin A and Zinc in a Placebo Controlled 4 Cell Trial

Who this might be right for
ImmunityDiarrheaRespiratory Tract Infections
International Centre for Diarrhoeal Disease Research, Bangladesh 147
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