Daily vitamin d may slash lung risks in kids with sickle cell disease
NCT ID NCT04170348
First seen Jun 26, 2026 · Last updated Jun 26, 2026
Summary
This study tested whether taking vitamin D every day could reduce lung complications in children and teens with sickle cell disease. Lung problems like infections, asthma attacks, and acute chest syndrome are major causes of illness and death in this condition. Researchers gave daily or monthly vitamin D3 or a placebo to 58 participants aged 3-20 to see if it lowered the rate of these respiratory events.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Vitamin D3 (cholecalciferol)
- What this could lead to
- If it works, daily vitamin D could become a simple, low-cost way to cut the risk of serious lung problems in children with sickle cell disease.
- What could go wrong
- This is a small Phase 2 trial with only 58 participants, so results may not apply to everyone. Vitamin D is generally safe, but high doses can cause side effects like high calcium levels.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
-
Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
-
58 people
The number who actually took part.
- Started
-
Sep 2020
- Finished
-
Jun 2024
- Lead sponsor
-
Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
-
3 to 20 years
- Sex
-
Anyone
- Healthy volunteers
-
Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Diagnosis of sickle cell disease (Hb SS, Hb SC, Hb S-Beta-thalassemia) 2. Age 3-20 years old Exclusion Criteria: 1. Patient unwilling or unable to provide written informed consent (and assent, if applicable) 2. Patient unable or unwilling to comply with requirements of the clinical trial 3. Participation in another clinical trial 4. Current diagnosis of rickets 5. History of hypercalcemia or diagnosis of any medical condition associated with hypercalcemia, including primary hyperparathyroidism, malignancy, sarcoidosis, tuberculosis, granulomatous disease, familial hypocalciuric hypercalcemia 6. Current use of corticosteroids, excluding inhaled steroids 7. Current use of anticonvulsants (phenytoin, phenobarbital, carbamazepine) 8. Therapy with thiazide diuretics or lithium carbonate 9. Known liver or renal disease 10. Patients taking medications for pulmonary complications of sickle cell disease not on a stable dose of medications, as defined by a change in medications or doses within the three months prior to study entry 11. Patients on chronic red blood cell transfusion therapy
Get updates
Get notified about this study
Sign up to get updates when this study changes or when new studies for Acute chest syndrome are added.
Genom att skicka in godkänner du våra Användarvillkor
Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
Columbia University Medical Center
New York, New York, 10032, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Sickle cell clues to diabetes risk hidden in DNA
- Can a tweaked bird flu shot build stronger immunity?
- Asthma's hidden switch: scientists hunt for calcium channels in Kids' immune cells
- Can a simple breath test cut asthma Flare-Ups?
- Breathing tube before sedation: a safer path for complex lung scopes?
- One dose to block the flu: baloxavir put to the test in households