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Clinical Trial Summary

RATIONALE: Imaging procedures, such as PET scan and CT scan, may help doctors predict a patient's response to treatment and plan the best treatment.

PURPOSE: This clinical trial is studying how well PET scans and CT scans show response to treatment in patients with locally advanced head and neck cancer undergoing chemotherapy and radiation therapy.


Clinical Trial Description

OBJECTIVES:

Primary

- Determine the feasibility of performing positron emission tomography-computed tomography (PET-CT) imaging for early discrimination of treatment response and post-therapy neck management in patients with locally advanced cancer of the head and neck treated with definitive chemoradiotherapy.

Secondary

- Perform semiquantitative analysis of tracer uptake in these patients using standard uptake values and qualitative analysis of tracer uptake using pure visual analysis.

- Determine the feasibility of distinguishing benign from malignant processes during initial tumor staging of these patients by whole-body PET-CT imaging.

- Correlate staging by whole-body PET-CT imaging with staging by standard CT/MRI, clinical exam, and pathologic specimen.

- Determine the feasibility of PET-CT imaging in these patients in treatment position for radiotherapy treatment planning, correlate the results with standard CT/MRI images, and record the differences.

- Perform PET-CT imaging in these patients during weeks 2 and 4 of chemoradiotherapy to evaluate the predictive value of response to treatment at these time points.

- Determine if the time interval for treatment monitoring at 6 and 12 weeks post chemoradiotherapy is important for the predictive value of PET-CT imaging.

- Evaluate patients with clinical or radiographic abnormalities worrisome for residual or recurrent disease with PET-CT imaging at 6 and 12 weeks post chemoradiotherapy to assess the need for additional therapies (i.e., neck dissection).

OUTLINE: This is a pilot study.

Patients receive fludeoxyglucose F 18 (FDG) IV over 90 seconds prior to the initial scan. Patients undergo whole-body computed tomography (CT) imaging with contrast followed by positron emission tomography (PET) imaging (approximately 1 hour after FDG injection) for initial staging and simulation for radiotherapy treatment planning. After PET-CT evaluation, patients with locoregional disease are recommended for standard-care chemoradiotherapy. Patients with evidence of M1 disease that is confirmed by CT/MRI and/or biopsy are treated at the discretion of the attending clinician. During chemoradiotherapy, patients undergo PET-CT imaging, as described above, at the beginning of week 2 and during week 4 for treatment monitoring and early detection of recurrent or residual disease. Follow-up PET-CT scans are performed, as described previously, at 6 weeks and then at 3 months after completion of chemoradiotherapy.

After completion of study procedures, patients are followed periodically for up to 5 years. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT00388024
Study type Observational
Source Wake Forest University Health Sciences
Contact
Status Completed
Phase N/A
Start date February 2006
Completion date January 2015

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