Vitamin D3 for Moderate to Mild Traumatic Brain Injury: A Randomized Trial on Inflammation and Recovery (VIMOT)

Recruiting now · Phase 2 · Has a placebo group

Conditions studied: Traumatic Brain Injury (TBI) Patients, Neuroinflammation

In brief

This study is a Phase II, randomized, quadruple-blinded, placebo-controlled clinical trial designed to test whether vitamin D₃ supplementation can improve recovery after mild-to-moderate traumatic brain injury (TBI) in adults. Traumatic brain injury often leads to inflammation and poor neurological outcomes, and many patients are vitamin D-deficient. Vitamin D₃ is a safe, widely available supplement that may reduce inflammation and support brain recovery. A total of 240 adults (18-65 years) with mild-to-moderate TBI will be enrolled at Lagos State University Teaching Hospital, Nigeria. Participants will be assigned to one of four groups: Group A (Deficient + High-Dose D₃): 40,000 IU loading dose, then 4,000 IU daily for 3 weeks Group B (Deficient + Standard-Dose D₃): 2,000 IU daily for 3 weeks Group C (Sufficient + Standard-Dose D₃): 2,000 IU daily for 3 weeks Group D (Sufficient + Placebo): placebo daily for 3 weeks All groups will be followed for 24 weeks. Blood tests at baseline, week 1, week 2, and week 4 will measure inflammation. Neurological recovery will be assessed at weeks 4, 12, and 24 using the Glasgow Outcome Scale-Extended (GOS-E) and Modified Rankin Scale (mRS). The main outcomes are changes in inflammatory markers. Secondary outcomes include mortality, functional recovery, hospital stay, safety, and cost-effectiveness. The results may identify a low-cost, scalable treatment to improve outcomes after TBI, especially in low-resource settings.

Key facts

Study ID

NCT07269457

Run by

Lagos State University

People needed

240

Starts

2026-03-02

Expected to finish

2028-12-30

Last updated by the study team

2026-05-13

Who can join

Age: 18 and older, up to 65. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Adults aged 18 to 65 years
• Diagnosed with mild-to-moderate TBI defined by GCS 9-15
• Presenting within 24 hours of head injury
• Willing and able to provide informed consent or have a legal representative provide consent
• Confirmed vitamin D-deficient status (<30 ng/mL) for randomization into treatment arms OR Vitamin D-sufficient (≥30 ng/mL) to be eligible for inclusion in the observational control arm.

You may not qualify if…

• Severe TBI (GCS ≤8)
• Prior use of vitamin D supplements within the past month
• History of hypercalcemia or hyperparathyroidism
• Pregnancy or lactation
• Use of immunosuppressive agents (e.g., corticosteroids, cytotoxic drugs)
• Chronic liver disease
• End-stage renal disease
• Any terminal illness or comorbidity with expected survival <3 months

Where it is running

• Lagos State University Teaching Hospital — Lagos, Nigeria (enrolling)

Full record on ClinicalTrials.gov

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