High-dose vitamin D followed by maintenance to reduce seizures, fatigue, and improve quality of life in adults with epilepsy

Effects of Mega-dose Vitamin D Pulse and Maintenance Therapy on Seizure Frequency, Fatigue, and Quality of Life: A Prospective Study

NA · National Cheng-Kung University Hospital · NCT06736002

This trial will give adults with epilepsy a mega-dose vitamin D pulse followed by maintenance or placebo to see if it lowers seizures, eases fatigue, and improves quality of life.

Quick facts

PhaseNA
Study typeInterventional
Enrollment200 (estimated)
SexAll
SponsorNational Cheng-Kung University Hospital (other)
Locations1 site (Tainan)
Trial IDNCT06736002 on ClinicalTrials.gov

What this trial studies

This prospective, interventional study gives participants a high-dose vitamin D pulse followed by maintenance dosing and compares outcomes to a placebo group. Adults aged 20 and older with refractory epilepsy and stable brain imaging are enrolled and followed over time. Main outcomes include seizure frequency, patient-reported fatigue, and standardized quality-of-life measures collected longitudinally. Clinical and safety data will be used to determine whether vitamin D supplementation has measurable benefits as an adjunct to usual epilepsy care.

Who should consider this trial

Good fit: Adults aged 20 or older with refractory epilepsy who have had no progressive brain damage on imaging in the past three years and who can follow the treatment plan are the intended candidates.

Not a fit: Children, people under age 20, patients with recent or progressive brain lesions, or those who cannot take vitamin D safely are unlikely to be appropriate or to benefit from this protocol.

Why it matters

Potential benefit: If successful, the intervention could reduce seizure frequency, lessen fatigue, and improve quality of life for some people with epilepsy when added to existing treatments.

How similar studies have performed: Observational studies and small trials have linked low vitamin D to worse epilepsy outcomes and suggested possible benefits, but larger randomized data remain limited.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Aged 20 or above (inclusive)
* Diagnosed patients (refractory epilepsy refers to those who have used more than two drugs, and each drug has reached the When epileptic seizures cannot be well controlled at standard reasonable treatment doses, it is called refractory epilepsy)
* There is no imaging evidence of persistence or expansion of brain damage in the past three years
* Subjects or family members (caregivers) can comply with the trial plan and take vitamin D patients

Exclusion Criteria:

\-

Where this trial is running

Tainan

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Epilepsy, Mega-Vitamin D, Fatigue, Quality of life

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.