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Reacquisition of Radioactive Iodine (RAI) Uptake of RAI-Refractory Metastatic Thyroid Cancers by Pretreatment With the Selective MEK Inhibitor AZD6244

NCT00970359 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 24

Last updated 2017-04-12

Study results available
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Summary

The purpose of this study is to find out if the drug AZD6244 can improve the radioactive iodine uptake by the patient's metastatic thyroid cancer. The investigator will also be testing the tumor specimen taken at the time of your surgery for specific genetic changes to see if one of them in particular (the BRAF oncogene) makes your cancer more likely to become sensitive to radioactive iodine after treatment with the drug.

The investigators want to find out if AZD6244 helps to increase the entry of radioactive iodine into thyroid cancer cells that have spread and are resistant to radioactive iodine therapy, especially if they have the BRAF mutation. To measure how much iodine can enter your cancer, the investigators will use iodine-124, a different form of radioactive iodine. Iodine-124 allows the investigators to measure precisely how much radioactivity can enter the cancer cells, whereas iodine-131 does not. The process of scanning with iodine-124 is called "lesional dosimetry". Iodine-124 is an investigational agent approved by the FDA (Food and Drug Administration) for use in this research study.

Conditions

Interventions

BIOLOGICAL

AZD6244

Within 1 week of starting the study: Low iodine diet The patient will receive three bottles of capsules containing the drug AZD6244. Each capsule contains 25 milligrams of AZD6244. They will take 3 capsules orally, by mouth twice a day for 4 weeks. AZD6244 should be taken on an empty stomach (either one hour before or 2 hours after meals). AZD6244 capsules should be taken with water only. Lesional dosimetry with iodine-124 PET will be done twice, at the beginning and at the end of the study. This is done the same way that a radioactive iodine scan is done and is spread out over 5 days. It requires injection with human recombinant TSH (Thyrogen) on day 1 and 2, as well as blood tests on day 1 and day 5. On day 3, you will receive the iodine-124 in form of an oral drink, and the PET scan will be obtained on day 5. You will need to follow a low iodine diet starting 5 days before and throughout the process.

Sponsors & Collaborators

Principal Investigators

  • Alan Ho, MD, PhD · Memorial Sloan Kettering Cancer Center

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2009-09-30
Primary Completion
2013-04-30
Completion
2013-04-30

Countries

  • United States

Study Locations

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Entities

Diseases
Companies

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT00970359 on ClinicalTrials.gov