# Hormonal Changes in Early Pregnancy

> **NCT00340028** · — · COMPLETED · sponsor: **National Institute of Environmental Health Sciences (NIEHS)** · enrollment: 40 (actual)

## Conditions studied

- Pregnancy

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT00340028
- **Lead sponsor:** National Institute of Environmental Health Sciences (NIEHS)
- **Sponsor class:** NIH
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2005-01-18
- **Primary completion:** 2006-02-24
- **Final completion:** 2014-04-22
- **Target enrollment:** 40 (ACTUAL)
- **Last updated:** 2025-01-01


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00340028

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00340028, "Hormonal Changes in Early Pregnancy". Retrieved via AI Analytics 2026-06-12 from https://api.ai-analytics.org/clinical/NCT00340028. Licensed CC0.

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