# High Dose Vitamin D Plus Multivitamin in the Prevention of Cluster Headache

> **NCT04570475** · NA · TERMINATED · sponsor: **The University of Texas Health Science Center, Houston** · enrollment: 27 (actual)

## Conditions studied

- Cluster Headache

## Interventions

- **DIETARY_SUPPLEMENT:** Vitamin D
- **DIETARY_SUPPLEMENT:** multivitamin
- **DIETARY_SUPPLEMENT:** Placebo

## Key facts

- **NCT ID:** NCT04570475
- **Lead sponsor:** The University of Texas Health Science Center, Houston
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** TERMINATED
- **Start date:** 2021-09-15
- **Primary completion:** 2024-05-13
- **Final completion:** 2024-05-13
- **Target enrollment:** 27 (ACTUAL)
- **Why stopped:** Low number met criteria to randomize.
- **Last updated:** 2025-02-06


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04570475

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04570475, "High Dose Vitamin D Plus Multivitamin in the Prevention of Cluster Headache". Retrieved via AI Analytics 2026-05-24 from https://api.ai-analytics.org/clinical/NCT04570475. Licensed CC0.

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