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Differentiated Thyroid CancerPhase 1NCT02278198

Evaluation of Thyroid Stunning From a Diagnostic Dose of I-123

A Phase 1 study testing rhTSH in people with Differentiated Thyroid Cancer, run by University of Colorado, Denver at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of the study is to find out if the small dose of radioiodine, that is used for the dosimetry study on patients with differentiated thyroid cancer, may stun the cancer cells and make the thyroid cancer treatment less effective. Read more about this study

Who is it for?
Ages 21 years and older
Conditions the study is for
Differentiated Thyroid Cancer
What is being tested?
rhTSH
Could I receive a placebo?
No, everyone receives an active treatment
How many people
5 participants
Where
1 siteUnited States
Study dates
30 Nov 2012to 20 Sep 2019
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 21 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patient must be 21-years-old or greater.
  • Patient must be status post near total thyroidectomy for differentiated thyroid cancer without known distant metastases and who are planning to undergo routine remnant thyroid tissue ablation with I-131.
  • Patients must qualify for thyroid ablation with I-131.

Who cannot join

  • Women who are pregnant or breastfeeding.
  • Prior bovine TSH use.
  • Known metastatic thyroid cancer.
  • History of cardiovascular disease that may adversely affect patient participation at the discretion of the primary investigator.
  • Patients on hemodialysis.
  • Patients with acute serious illnesses at the discretion of the primary investigator.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Fawn N White

    Denver, Colorado, 80211

Other trials in United States

About this study

The purpose of the study is to find out if the small dose of radioiodine, that is used for the dosimetry study on patients with differentiated thyroid cancer, may stun the cancer cells and make the thyroid cancer treatment less effective.

Read the detailed description

This study plans to learn more about a medical problem called thyroid stunning. Thyroid stunning is a temporary decrease in the function of thyroid cells after small doses of radioiodine, a radioactive drug that is commonly used to treat thyroid cancer. Thyroid stunning can be an important medical problem in patients who have thyroid cancer that has spread beyond the thyroid gland (metastases). In patients with thyroid cancer metastases, some researchers believe it is good to give the maximum safe dose of radioiodine in order to have the greatest chance of destroying the cancer. The maximum safe dose is the highest dose of radioiodine that a patient can safely receive, and this dose is unique to each person. This special personalized dose is determined by first doing a dosimetry study. Dosimetry study is a planning study that calculates the safest dose that the patient can receive. Currently, it is not known whether the small dose of radioiodine that is used for the dosimetry study may stun the cancer cells and make the thyroid cancer treatment less effective.

There are two important types of radioiodine. I-123 is a form of radioiodine that is used to take pictures of the thyroid gland. I-131 is a form of radioiodine that is used to treat thyroid cancer. It is hoped that this study will produce important information that may be the first step in resolving the thyroid stunning question. Investigators will use I-123, a form of iodine that is currently not known to cause thyroid stunning, before thyroid cancer treatment with I-131. Investigators will try to prove that I-123 does not cause thyroid stunning and does not make the thyroid cancer treatment less effective.

Patients are being asked to be in this research study because they have differentiated thyroid cancer, and they have no evidence of thyroid cancer that has spread to the other parts of their body. As a result, those patients thyroid cancer treatment with radioiodine will be a smaller amount than what is needed to treat patients with thyroid cancer that has spread to other parts of the body. Thyroid stunning is not a medical problem for patients like these. However, by participating in this study, the information investigators gather from those patients treatment of thyroid cancer may help those patients with thyroid cancer metastases.

Being tested
rhTSH
Keywords
thyroid cancer
Medical subject headings
Thyroid Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • rhTSHDrug

    Also called Thyrogen

    Intramuscular injections of rhTSH (Thyrogen) will be given on days 1 and 2.

Study groups in NCT02278198
Study groupRoleWhat they receive
Differentiated Thyroid CancerExperimentalAll patients will receive one extra imaging scan with I-123 in addition to their routine care as described above. This research portion of their care will be similar to the scan that they undergo for the I-123 planning scan that is already a part of their routine care. The research study, which will be performed in the middle of the patient's normal standard of care treatment, will take 4 days. On days 1 and 2, all patients will receive a intramuscular injection of rhTSH (Thyrogen). On day 3, all patients will be given 3 mCi of I-123 in the form of a pill to take by mouth. On day 4, all patients will receive a I-123 Whole Body Imaging Scan and a thyroid camera scan of the neck and thigh.
Receives: Drug: rhTSH

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Difference in uptake of I-123 in the thyroid remnant in the neck in the two imaging studies.

    Greater than a 20% decrease from the first to second study will indicate evidence of stunning.

    Measured: 11 days

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted29 Oct 2014 (estimated)
  2. Study start30 Nov 2012
  3. Primary completion20 Sep 2019
  4. Study completion20 Sep 2019

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Diagnosis
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
5 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02278198
Sponsor's protocol ID
12-0300
Status last verified
Oct 2019
First submitted
27 Oct 2014
Last updated
24 Oct 2019
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing rhTSH in people with Differentiated Thyroid Cancer, run by University of Colorado, Denver at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 24 Oct 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Difference in uptake of I-123 in the thyroid remnant in the neck in the two imaging studies. (time frame: 11 days). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 24 Oct 2019.

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