Dual-Time Point (DTP) FDG PET CT for the Post-Treatment Assessment of Head and Neck Tumors Following Definitive Chemoradiation Therapy
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 14
- 试验地点
- 2
- 主要终点
- Differences in L/B ratio
研究概览
简要总结
This trial studies how well standard and delayed fludeoxyglucose F-18 (FDG)-positron emission tomography (PET)/computed tomography (CT) given after standard radiation and chemotherapy works in assessing patients with head and neck squamous cell cancer that has spread to other places in the body. Diagnostic procedures, such as PET/CT, use radioactive material, such as fludeoxyglucose F-18, to find and diagnose head and neck tumors and may help to find out how far the disease has spread.
详细描述
PRIMARY OBJECTIVE:
I. To assess the optimal imaging time using FDG positron emission tomography (PET) with comparison between a standard of care 1-hour scan (early) and the research scan of 3-hours scan (delayed) post radiotracer administration that maximizes separation of activity between lesion and non-lesional parenchyma (measured as lesion/background [L/B] ratio) in patients with head and neck primary squamous cell carcinoma following chemoradiation treatment.
OUTLINE:
Patients receive fludeoxyglucose F-18 intravenously (IV) over 1 minute and undergo PET/CT at 70 and 180 minutes after injection at 12-14 weeks following standard chemoradiation (CRT) completion.
After completion of study, patients are followed up at 30 days and then periodically for up to 6 months.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Diagnostic
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Adult with computed tomography (CT) or fludeoxyglucose F-18 (FDG) positron emission tomography (PET) findings of cervical nodal metastasis from a head and neck primary squamous cell carcinoma treated with definitive chemoradiation
排除标准
- •No evidence of cervical nodal metastasis
- •Active infection of the head and neck
- •Known allergy to FDG, iodine or gadolinium-based contrast agents
- •Blood glucose (> 250 mg/dl)
- •Pregnant women
结局指标
主要结局
Differences in L/B ratio
时间窗: Up to 6 months
Differences in L/B ratio between the initial and delayed time point will be tested via paired t-test after appropriate transformation.
Optimal imaging time
时间窗: Up to 6 months
Determined by fludeoxyglucose F-18 (FDG) positron emission tomography. The optimal time point is defined as the time point that meets the following requirements: 1) it has the largest average lesion/background (L/B) ratio, and 2) if the delayed time point is greater, it must be significantly different from the initial time point at the 0.025 significance level. The acquired PET data will be reconstructed using iterative techniques with resolution recovery. All delayed time points will then be registered using rigid techniques to the standard of care initial PET/CT image. Volumes of interest around the largest nodal metastasis will be drawn and the standard uptake value (SUV) max will be calculated. A corresponding region for largest nodal metastasis will be drawn on the contralateral sternocleidomastoid muscle respective to each lesion to determine L/B ratio, where L is the lesion SUV max and B is the corresponding background SUV max.
次要结局
未报告次要终点