Medical Information Only. Always consult your healthcare provider before enrolling in any clinical trial.
Evaluating the Effects of Supplemental Vitamin C on Infant Lung Function in Pregnant Smoking Women
NCT00632476 · View on ClinicalTrials.gov ↗
Study Summary
Women who smoke during their pregnancy place their unborn child at an increased risk of health problems, including decreased lung function and possible lung diseases later in life. Preliminary animal research suggests that if vitamin C is taken during pregnancy, nicotine's harmful effects on the unborn baby's developing lungs may be blocked. This study will determine the effect that vitamin C has on the lung development and function of babies born to women who smoke during pregnancy.
Interventions
- OTHER Placebo
- DIETARY_SUPPLEMENT Vitamin C
Study Locations (1)
Oregon
- Oregon Health & Science University — Portland
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 282 participants |
| Start Date | 2007-03 |
| Est. Completion | 2012-07 |
| Phase | NA |
Interested in This Trial?
Always speak with your doctor before enrolling in a clinical trial.
Full Details on ClinicalTrials.gov ↗What the Registry Record Tells You About NCT00632476
The ClinicalTrials.gov registry entry for NCT00632476 describes a study currently listed as completed. It is categorized as NA, which is the standard way researchers label where a study sits along the investigational pathway from early safety work through later efficacy and post-marketing evaluation. The registered enrollment target is 282 participants, a figure that helps gauge the scale of data the investigators plan to collect. The listed sponsor is Oregon Health and Science University, which has 665 total studies on file at ClinicalTrials.gov, and sponsors are the parties responsible for study design, oversight, and regulatory filings.
The record links to 2 conditions, with Pregnancy appearing as the primary indexed condition, and to 2 interventions — of which Placebo is the first listed. Interventions can include drugs, devices, procedures, behavioral programs, or observational arms, and each is tracked as a separate registry field so that downstream queries can filter accurately. When a trial lists multiple interventions, it usually reflects a multi-arm design or a comparison protocol rather than a single treatment being tested in isolation. The brief summary published in the registry is the clearest source of protocol intent and should be read before drawing conclusions from any sidebar tags.
Geographic footprint matters for practical reasons: NCT00632476 reports 1 study location spanning 1 distinct geographic area — top geographies include Oregon. A larger site network tends to correlate with broader recruitment capacity, but it does not imply anything about study quality, and site-level enrollment status can diverge from the overall registry status shown above. Every data point on this page comes from the public ClinicalTrials.gov dataset and is reproduced here for reference only; it is not a medical recommendation, an endorsement of the sponsor, or an invitation to enroll. Verify current status, eligibility criteria, and contact details directly at ClinicalTrials.gov, and discuss any participation decision with your own healthcare provider.
Frequently Asked Questions
What is clinical trial NCT00632476 about?
NCT00632476 is a clinical study titled "Evaluating the Effects of Supplemental Vitamin C on Infant Lung Function in Pregnant Smoking Women". Women who smoke during their pregnancy place their unborn child at an increased risk of health problems, including decreased lung function and possible lung diseases later in life. Preliminary animal research suggests that if vitamin C is taken during pregnancy, nicotine's harmful effects on the unb...
What is the current status of trial NCT00632476?
This trial is currently completed. It is a NA study. The enrollment target is 282 participants. The study started on 2007-03. Estimated completion is 2012-07.
What conditions does trial NCT00632476 study?
This clinical trial studies the following conditions: Pregnancy, Smoking. These conditions were identified from the trial registry and reflect the primary focus areas of the research.
What interventions are being tested in trial NCT00632476?
The interventions under investigation include: Placebo (OTHER), Vitamin C (DIETARY_SUPPLEMENT). Each intervention is being evaluated for safety and efficacy as part of this clinical study.
Who is sponsoring clinical trial NCT00632476?
This trial is sponsored by Oregon Health and Science University, which has 665 total clinical trials registered on ClinicalTrials.gov. The sponsor is responsible for the study's design, funding, and regulatory compliance.
Where is trial NCT00632476 being conducted?
This trial has 1 study location across Oregon. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.
Learn More About Clinical Trials
How Clinical Trials Work
Understand phases 1-4, trial design, randomization, and the informed consent process.
Patient Rights in Clinical Trials
Your rights as a participant: consent, withdrawal, privacy, and who to contact.
Finding the Right Clinical Trial
A practical guide to searching trials, understanding eligibility, and evaluating options.
All Guides
Browse our complete library of clinical trial educational resources.
Read our methodology — how this data is sourced, computed, and verified.