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

Information source: Memorial Sloan Kettering Cancer Center
ClinicalTrials.gov processed this data on August 23, 2015
Link to the current ClinicalTrials.gov record.

Condition(s) targeted: Thyroid Cancer

Intervention: AZD6244 (Biological)

Phase: N/A

Status: Completed

Sponsored by: Memorial Sloan Kettering Cancer Center

Official(s) and/or principal investigator(s):
Alan Ho, MD, PhD, Principal Investigator, Affiliation: Memorial Sloan Kettering Cancer Center


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.

Clinical Details

Official title: Reacquisition of RAI Uptake of RAI-Refractory Metastatic Thyroid Cancers by Pretreatment With the Selective MEK Inhibitor AZD6244: A Pilot Study

Study design: Allocation: Non-Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment

Primary outcome:

Determine whether RAI uptake in thyroid cancer mets increases after 4 weeks tx with the selective MEK inhibitor AZD6244 in patients with RAI-refractory thyroid cancer.

To determine whether the reacquisition of RAI uptake following AZD6244 treatment results in decrease of size of the thyroid cancer metastases once a treatment with 131I is administered.

Secondary outcome:

To determine whether treatment with 131I following AZD6244 is accompanied by decrease in serum thyroglobulin.

To determine whether BRAF mutant tumors are more susceptible to AZD6244 mediated enhancement of RAI uptake compared to BRAF wild-type tumors


Minimum age: 18 Years. Maximum age: N/A. Gender(s): Both.


Inclusion Criteria:

- Patients > or = to 18 years-old

- Patients must have histopathologically confirmed at MSKCC differentiated thyroid

carcinoma of follicular cell origin (D-TC-FCO), which includes papillary, follicular, or Hürthle cell histology, along with their respective variants.

- Pathology specimen from the original tumor (thyroid) and/or metastases must be

available for genotyping.

- RAI-refractory metastatic disease on structural imaging, defined as any one of the

following (as described in MSKCC protocol 08-066):

- index metastatic lesion non-RAI avid on a diagnostic RAI scan performed up to 2

years prior to enrolment in the current study, OR

- RAI-avid metastatic lesion which remained stable in size or progressed despite

RAI treatment 6 months or more prior to entry in the study. Lesions will be assessed by 2 independent observers in nuclear medicine and in endocrinology. There is no minimal size limit for the index lesion.

- Patients with FDG avid lesions

- Evaluable disease by RECIST

- Preliminary reproductive toxicology data indicate that AZD6244 can have adverse

effects on embryofetal development and survival at dose levels that do not induce maternal toxicity in mice. For this reason, female patients will need to be post-menopausal or with negative serum pregnancy test if pre-menopausal. Patients of childbearing potential must agree to employ adequate contraception throughout the study.

- ANC > 1500 per mm3, platelets > 100,000 per mm3, and hemoglobin > 9 g/dL

- ALT/SGOT and AST/SGPT ≤ 2. 5 X upper limit of normal (ULN)

- Bilirubin ≤ 1. 5 X ULN

- Ability to understand and the willingness to sign a written informed consent

document. Exclusion Criteria:

- Patients may not be receiving any other investigational agents.

- Patient with chronic renal insufficiency, as defined initially by an estimated

creatinine clearance of < 30 ml/minute calculated using the Cockcroft and Gault

equation: (140 - age in years) X (weight in kg) X (0. 85 if female)/72 X serum Cr. If

estimated creatinine clearance is < 30 ml/min, a 24 hour urine creatinine clearance may be collected and a patient would be eligible if the creatinine clearance is >30 ml/min.

- Patients unable to follow a low iodine diet, patients requiring medication with high

content in iodide (amiodarone), or patients receiving IV iodine containing contrast as part of radiographic procedure.

- Patients with clinically significant cardiovascular disease as defined by the


- LVEF < institutional LLN

- New York Heart Association grade III or greater congestive heart failure

- uncontrolled hypertension, defined as systolic blood pressure > 180 mmHg OR

diastolic blood pressure > 105 mmHg, on at least 2 repeated determinations on separate days within past 3 months

- Uncontrolled coronary artery disease, angina, congestive heart failure, or

ventricular arrhythmia requiring acute medical management.

- Patient with known hypersensitivity to Thyrogen (human recombinant thyrotropin).

- Patients with a history of allergic reactions attributed to compounds of similar

chemical or biologic composition to agents used in the study.

- Uncontrolled intercurrent illness including, but not limited to, ongoing or active

infection or psychiatric illness/social situations that would limit compliance with study requirements.

- Pregnant women will be ineligible; breast feeding should be discontinued if the

mother is treated with AZD6244.

- Brain metastases or spinal cord compression unless treated and stable (for at least 3

months) off steroids.

- Mean QTc interval >450 ms

Locations and Contacts

Memorial Sloan-Kettering Cancer Center, New York, New York 10065, United States
Additional Information

Memorial Sloan-Kettering Cancer Center

Starting date: September 2009
Last updated: April 10, 2013

Page last updated: August 23, 2015

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