# Effect of Age, Weight and Sex on Levothyroxine Pharmacokinetics

> **NCT03102177** · EARLY_PHASE1 · COMPLETED · sponsor: **Georgetown University** · enrollment: 41 (actual)

## Conditions studied

- Hypothyroidism Primary

## Interventions

- **DRUG:** Administration of stable Isotope labeled levothyroxine

## Key facts

- **NCT ID:** NCT03102177
- **Lead sponsor:** Georgetown University
- **Sponsor class:** OTHER
- **Phase:** EARLY_PHASE1
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2011-05-31
- **Primary completion:** 2013-11-30
- **Final completion:** 2016-07-26
- **Target enrollment:** 41 (ACTUAL)
- **Last updated:** 2017-04-06


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03102177

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03102177, "Effect of Age, Weight and Sex on Levothyroxine Pharmacokinetics". Retrieved via AI Analytics 2026-05-23 from https://api.ai-analytics.org/clinical/NCT03102177. Licensed CC0.

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