# Vitamin K Supplementation to Reduce Deficiencies in Adults With Cystic Fibrosis

> **NCT04496921** · NA · WITHDRAWN · sponsor: **Institut de Recherches Cliniques de Montreal**

## Conditions studied

- Cystic Fibrosis

## Interventions

- **DIETARY_SUPPLEMENT:** Vitamin K supplementation, dose #1
- **DIETARY_SUPPLEMENT:** Vitamin K supplementation, dose #2

## Key facts

- **NCT ID:** NCT04496921
- **Lead sponsor:** Institut de Recherches Cliniques de Montreal
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** WITHDRAWN
- **Start date:** 2020-08-10
- **Primary completion:** 2021-08-16
- **Final completion:** 2021-08-16
- **Target enrollment:** 0 (ACTUAL)
- **Why stopped:** Clinical care of patients with CF changed following COVID-19 pandemic (OGTT not performed at the CF clinic since March 2020); in consequence, this study is no longer feasible.
- **Last updated:** 2021-08-20

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04496921

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04496921, "Vitamin K Supplementation to Reduce Deficiencies in Adults With Cystic Fibrosis". Retrieved via AI Analytics 2026-07-11 from https://api.ai-analytics.org/clinical/NCT04496921. Licensed CC0.

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