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NCT00403390 · ClinicalTrials.gov registry record · NA
Generic vs. Name-Brand Levothyroxine
A NA study, sponsored by Boston Children's Hospital.
- Completed
- Registry status
- NA
- Development phase
- 34
- Enrollment target
NCT00403390: Completed NA study, sponsored by Boston Children's Hospital.
NCT00403390 is a NA study that has completed, run by Boston Children's Hospital. The registered enrollment target is 34 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (98% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT00403390, a NA study, has completed, sponsored by Boston Children's Hospital.
- COMPLETED
- Registry status
- NA
- Development phase
- 34 participants
- Enrollment target
Study Summary
This study compares two different brands of thyroxine (thyroid hormone). Currently, pharmacists may be substituting generic formulations of thyroid hormone without your doctor knowing about this. Although a small difference in thyroid function is not significant in most healthy children, adolescents and adults, in infants and toddlers even a small difference in thyroid function can have important harmful consequences on brain development. The purpose of the present study is to learn whether the difference between brands of thyroid hormone that are currently being substituted is sufficient to cause a difference in thyroid function.
Interventions
- DRUG Brand Name Levothyroxine (Synthroid)
- DRUG Generic formulation of Levothyroxine
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 34 participants |
| Start Date | 2006-11 |
| Est. Completion | 2010-03 |
| Phase | NA |
What the finished NCT00403390 record still lists
NCT00403390 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 34 participants, a relatively small participant target, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (98% lower).
The record links to 0 conditions, and to 2 interventions - of which Brand Name Levothyroxine (Synthroid) is the first listed.
NCT00403390 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT00403390 about?
NCT00403390 is a clinical study titled "Generic vs. Name-Brand Levothyroxine". This study compares two different brands of thyroxine (thyroid hormone). Currently, pharmacists may be substituting generic formulations of thyroid hormone without your doctor knowing about this. Although a small difference in thyroid function is not significant in most healthy children, adolescents...
What is the current status of trial NCT00403390?
This trial is currently completed. It is a NA study. The enrollment target is 34 participants. The study started on 2006-11. Estimated completion is 2010-03.
What interventions are being tested in trial NCT00403390?
The interventions under investigation include: Brand Name Levothyroxine (Synthroid) (DRUG), Generic formulation of Levothyroxine (DRUG).
Who is sponsoring clinical trial NCT00403390?
This trial is sponsored by Boston Children's Hospital, which has 462 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT00403390's enrollment target sits among peer trials
34 1570th of 2000 higher than 427 of 2,000 other NA trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other NA trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov registry export · 2026-08-08
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