# Vitamin C Supplementation to Pregnant Smokers: Follow-up of 2 Randomized Trials Plus Changes in DNA Methylation

> **NCT03206710** · — · COMPLETED · sponsor: **Oregon Health and Science University** · enrollment: 395 (actual)

## Conditions studied

- Asthma
- Wheezing
- In Utero Nicotine
- Pulmonary Function

## Interventions

- **OTHER:** No current intervention

## Key facts

- **NCT ID:** NCT03206710
- **Lead sponsor:** Oregon Health and Science University
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2017-06-01
- **Primary completion:** 2023-12-01
- **Final completion:** 2024-12-31
- **Target enrollment:** 395 (ACTUAL)
- **Last updated:** 2025-03-21

## Collaborators

- [object Object]
- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03206710

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03206710, "Vitamin C Supplementation to Pregnant Smokers: Follow-up of 2 Randomized Trials Plus Changes in DNA Methylation". Retrieved via AI Analytics 2026-05-23 from https://api.ai-analytics.org/clinical/NCT03206710. Licensed CC0.

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