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NCT00001730 · ClinicalTrials.gov registry record · Phase 4
Study of Radioiodine (131-I) Uptake Following Administration of Thyrogen and Hypothyroid States During Thyroid Hormone Withdrawal.
A Phase 4 study, sponsored by National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK).
- Completed
- Registry status
- Phase 4
- Development phase
- 20
- Enrollment target
NCT00001730: Completed Phase 4 study, sponsored by National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK).
NCT00001730 is a Phase 4 study that has completed, run by National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK). The registered enrollment target is 20 participants, below the 518-participant average among 9,235 other Phase 4 trials with a reported enrollment target (96% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT00001730, a Phase 4 study, has completed, sponsored by National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK).
- COMPLETED
- Registry status
- Phase 4
- Development phase
- 20 participants
- Enrollment target
Study Summary
Thyroid cancer is typically treated with surgery, radiation or a combination of both. Following surgical removal of thyroid tissue patients receive thyroid hormone replacement medication. In addition patients undergo tests to determine the status of the disease. One of the tests conducted is a whole body scan using radioactive iodine to detect and locate any remaining cancerous thyroid tissue. Thyroid tissue uses iodine to make thyroid hormones (T3 and T4). In order for a radioiodine scan to work, cancerous thyroid tissue must be "hungry" for iodine. Thyroid stimulating hormone (TSH) produced in the pituitary gland is responsible for making thyroid tissue "hungry" for iodine. Once thyroid tissue absorbs the radioactive iodine it will be clearly visible on the scan and can be located for removal. However, thyroid hormone replacement medication tends to lower the activity of the pituitary gland and the amount of naturally produced TSH. So it is necessary to stop thyroid hormone replacement to increase TSH. A problem arises when there is a lack of thyroid hormone replacement causing patients to experience hypothyroidism. This condition is associated with unpleasant physical and emotional symptoms. TSH has been created in a laboratory and called Thyrogen. It is basically the same as the TSH produced in the human pituitary gland. However, Thyrogen increases the level of TSH in the body without having to stop thyroid replacement medication. Therefore patients will not experience hypothyroidism while preparing for a radioactive iodine scan. The objective of this study is to compare the activity of radioiodine (131I) in patients taking Thyrogen with normal thyroid activity versus patients with hypothyroid activity after thyroid replacement medication is withdrawn. In addition the study will provide information on how radioactive iodine is eliminated from the body. The study will help researchers understand how to give Thyrogen and radioiodine for purposes of scanning and
Interventions
- DRUG Thyrogen
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 20 participants |
| Start Date | 1997-12 |
| Est. Completion | 2000-04 |
| Phase | Phase 4 |
What the finished NCT00001730 record still lists
NCT00001730 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 20 participants, a relatively small participant target, below the 518-participant average among 9,235 other Phase 4 trials with a reported enrollment target (96% lower).
The record links to 0 conditions, and to 1 intervention - of which Thyrogen is the first listed.
NCT00001730 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT00001730 about?
NCT00001730 is a clinical study titled "Study of Radioiodine (131-I) Uptake Following Administration of Thyrogen and Hypothyroid States During Thyroid Hormone Withdrawal.". Thyroid cancer is typically treated with surgery, radiation or a combination of both. Following surgical removal of thyroid tissue patients receive thyroid hormone replacement medication. In addition patients undergo tests to determine the status of the disease. One of the tests conducted is a whole...
What is the current status of trial NCT00001730?
This trial is currently completed. It is a Phase 4 study. The enrollment target is 20 participants. The study started on 1997-12. Estimated completion is 2000-04.
What interventions are being tested in trial NCT00001730?
The interventions under investigation include: Thyrogen (DRUG).
Who is sponsoring clinical trial NCT00001730?
This trial is sponsored by National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), which has 490 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT00001730's enrollment target sits among peer trials
20 1753rd of 2000 higher than 167 of 2,000 other Phase 4 trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other Phase 4 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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