Crick
HomeTrialsGenesDrugs23andMeGraphBlogContact
  • Home
  • Trials
  • Genes
  • Drugs
  • 23andMe
  • Graph
  • Blog
  • Contact
Crick

An open-source clinical intelligence platform. Explore clinical trials, gene networks, and molecular structures using public data sources.

Data Sources

  • ClinicalTrials.gov
  • OpenTargets
  • ClinVar
  • PubChem

Links

  • Contact
  • About
  • Privacy

© 2026 Crick. All rights reserved.

Crick is for educational purposes only. Not medical advice.

Results for “Night Blindness”

78 trials

Showing 20 of 78 results

Not applicableStudy completedNCT03383744
What this trial is testing

Using Stable Isotopes to Assess the Effectiveness of Vitamin A Supplementation in Cameroon

Who this might be right for
Vitamin A Deficiency
Centre for Food and Nutrition Research, Yaounde 104
Not applicableEnrolling By InvitationNCT05323292
What this trial is testing

Vitamin A Status in Patients With Vocal Fold Leukoplakia

Who this might be right for
Vitamin AVitamin A DeficiencyLeukoplakia+1 more
University of Wisconsin, Madison 90
Not applicableStudy completedNCT01552512
What this trial is testing

Nutributter Programming to Prevent Undernutrition: an Evaluation

Who this might be right for
Undernutrition
Washington University School of Medicine 1,228
Not applicableUnknownNCT04438200
What this trial is testing

Liver and Bone Retinol Levels in Guatemalan Adolescents and Adults

Who this might be right for
Vitamin A DeficiencyVitamin A ToxicityHypervitaminosis A
Newcastle University 150
Testing effectiveness (Phase 2)Study completedNCT00500812
What this trial is testing

A Safety Study for Cethrin (BA-210) in the Treatment of Acute Thoracic and Cervical Spinal Cord Injuries

Who this might be right for
Spinal Cord Injury
Vertex Pharmaceuticals Incorporated 48
Not applicableStudy completedNCT02965534
What this trial is testing

Evaluation of a Night Spectacle Correction Concerning an Improvement of Mesopic Vision Quality

Who this might be right for
Myopia-Night Blindness
University of Applied Sciences Jena 100
Not applicableStudy completedNCT02996513
What this trial is testing

Assessing Model Parameters for Applying the Retinol Isotope Dilution (RID) Method

Who this might be right for
Vitamin A DeficiencyMalariaInflammation
Wageningen University 60
Testing effectiveness (Phase 2)Study completedNCT01381276
What this trial is testing

Vitamin A Absorption From Cassava in Women

Who this might be right for
Vitamin A Deficiency
USDA, Western Human Nutrition Research Center 10
Not applicableStudy completedNCT02847962
What this trial is testing

Newly Formulated, Extruded Fortified-blended Foods for Food Aid: the MFFAPP Tanzania Efficacy Study

Who this might be right for
Anemia, Iron-DeficiencyDeficiency, Vitamin A
Kansas State University 2,179
Not applicableStudy completedNCT00082420
What this trial is testing

Retinol Equivalence of Plant Carotenoids in Children

Who this might be right for
Vitamin A Deficiency
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) 32
Not applicableStudy completedNCT02702622
What this trial is testing

Vitamin A Equivalence of the Provitamin A in Biofortified Bananas

Who this might be right for
Vitamin A Deficiency
Iowa State University
Not applicableUnknownNCT03353662
What this trial is testing

Sub Regional Micronutrient Survey in Ethiopia

Who this might be right for
Iron-deficiencyVitamin A DeficiencyZinc Deficiency
Swiss Federal Institute of Technology 1,200
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
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 applicableStudy completedNCT01420406
What this trial is testing

Vitamin A Bioavailability in Lactating Women With Marginal Vitamin A Status

Who this might be right for
Vitamin A Deficiency
USDA, Western Human Nutrition Research Center 140
Testing effectiveness (Phase 2)Study completedNCT00053612
What this trial is testing

Vitamin A to Reduce HIV in Vaginal Secretions and Prevent Viral Transmission

Who this might be right for
HIV InfectionsVitamin A DeficiencyHIV Seronegativity
National Institute of Allergy and Infectious Diseases (NIAID) 400
Large-scale testing (Phase 3)Study completedNCT00742937
What this trial is testing

Impact of Maternal Supplementation With Dual Megadose of Vitamin A

Who this might be right for
HypovitaminosisVitamin A Deficiency
Instituto Materno Infantil Prof. Fernando Figueira 239
Not applicableStudy completedNCT04820465
What this trial is testing

Anemia in Older Adults

Who this might be right for
AnemiaNutritional DeficiencyInflammation
Instituto Nacional de Salud Publica, Mexico 829
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 completedNCT01614483
What this trial is testing

Efficacy of Yellow Cassava to Improve Vitamin A Status of Kenyan School Children

Who this might be right for
Vitamin A Deficiency
Wageningen University 341
Load More Results

Filters

Phase
Early Phase 1
Phase 1
Phase 2
Phase 3
Phase 4
Status
Recruiting
Active, Not Recruiting
Not Yet Recruiting
Completed
Enrolling by Invitation