# Effects of Vitamin D and Omega-3 Fatty Acids on Infectious Diseases and hCAP18 (VITAL Infection)

> **NCT01758081** · NA · ACTIVE_NOT_RECRUITING · sponsor: **Brigham and Women's Hospital** · enrollment: 25874 (actual)

## Conditions studied

- Infections
- Human Cathelicidin Antimicrobial Peptide (hCAP-18)

## Interventions

- **DIETARY_SUPPLEMENT:** vitamin D3
- **DRUG:** omega-3 fatty acids (fish oil)
- **DIETARY_SUPPLEMENT:** Vitamin D3 placebo
- **DIETARY_SUPPLEMENT:** fish oil placebo

## Key facts

- **NCT ID:** NCT01758081
- **Lead sponsor:** Brigham and Women's Hospital
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** ACTIVE_NOT_RECRUITING
- **Start date:** 2010-07
- **Primary completion:** 2026-12
- **Final completion:** 2026-12
- **Target enrollment:** 25874 (ACTUAL)
- **Last updated:** 2025-09-25


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01758081

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01758081, "Effects of Vitamin D and Omega-3 Fatty Acids on Infectious Diseases and hCAP18 (VITAL Infection)". Retrieved via AI Analytics 2026-06-09 from https://api.ai-analytics.org/clinical/NCT01758081. Licensed CC0.

---

*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*