Clinical trial

Daily Vitamin D for Sickle-cell Respiratory Complications

NCT04170348

StatusCOMPLETED

Study typeINTERVENTIONAL

Start date2020-09-15

PhasePHASE2

Study timeline

Study start (actual)2020-09-15Date precision: day

Registry last updated2025-09-24

Observed by CureCurrent2026-10-07

Recorded dates are source observations, not predictions. Missing milestones are not estimated.

Conditions

Sickle Cell Diseaseunresolved

Anemia, Sickle Cellunresolved

Anemia, Hemolytic, Congenitalunresolved

Respiratory Tract Diseasesunresolved

Respiration Disordersunresolved

Acute Chest Syndromeunresolved

Lung Diseasesunresolved

Asthmaunresolved

Respiratory Tract Infectionsunresolved

Nutrition Disordersunresolved

Deficiency Diseases Vitaminunresolved

Vitamin D Deficiencyunresolved

Interventions

Daily oral vitamin D3, 3,333 IUDRUG

Monthly oral vitamin D3, 100,000 IUDRUG

Placebo oral tabletDRUG

Sponsors & collaborators

Columbia Universitylead sponsor

FDA Office of Orphan Products Developmentcollaborator

Mapped research locations

New YorkNew York, United States1

Registry source

Open the source record to verify current eligibility, contacts, locations and registry updates.

Open NCT04170348 on ClinicalTrials.gov ↗

Registry-derived research relationships: ClinicalTrials.gov. Raw condition and intervention labels remain distinct from canonical MONDO/RxNorm entities unless separately normalized.