Sputum Cytology in Screening Heavy Smokers For Lung Cancer
Lung Cancer Screening and Tissue Procurement
RATIONALE: Screening tests, such as sputum cytology, may help doctors find tumor cells early and plan better treatment for lung cancer.
PURPOSE: This phase II trial is studying how well sputum cytology works in screening heavy smokers for lung cancer.
研究概览
详细说明
OBJECTIVES:
Primary
- Classify annual sputum samples cytologically in participants with or without airflow obstruction and a heavy smoking history.
- Correlate sputum cytological atypia (moderate atypia or worse) with lung cancer incidence in these participants.
- Correlate changes in sputum cytology (i.e., changes toward higher grades of atypia) with lung cancer incidence in these participants.
Secondary
- Determine other risk factors for lung cancer (e.g., diet, family history, smoking history, and medications) that may either confound or modify the association between sputum cytology and lung cancer risk in these participants.
OUTLINE: Two 3-day pooled sputum samples are collected for 6 consecutive days from participants by the spontaneous cough technique for cytopathological evaluation. Participants also complete a risk factor questionnaire and undergo a pulmonary function test by spirometry and a blood draw.
Participants complete a questionnaire updating smoking, vital, and lung cancer status and undergo sputum sample collection annually.
Participants are informed of sputum cytology results.
PROJECTED ACCRUAL: A total of 3,400 participants (2,900 with airflow obstruction and 500 without airflow obstruction) will be accrued for this study.
研究类型
注册 (实际的)
阶段
- 阶段2
联系人和位置
学习地点
-
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Colorado
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Denver、Colorado、美国、80262
- University of Colorado Health Sciences Center - Denver
-
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参与标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
描述
DISEASE CHARACTERISTICS:
Current or ex-smoker with a lifetime history of cigarette smoking of ≥ 20 pack years, meeting 1 of the following criteria:
Airflow obstruction
- FEV_1 < 75% predicted for age by spirometry
- FEV_1/FVC ≤ 75% by spirometry
- No airflow obstruction
- No history of lung cancer
PATIENT CHARACTERISTICS:
Age
- 25 and over
Performance status
- Not specified
Life expectancy
- More than 5 years
Hematopoietic
- Not specified
Hepatic
- Not specified
Renal
- Not specified
Other
- No cancer within the past 5 years except nonmelanoma skin cancer
PRIOR CONCURRENT THERAPY:
Biologic therapy
- Not specified
Chemotherapy
- Not specified
Endocrine therapy
- Not specified
Radiotherapy
- Not specified
Surgery
- Not specified
学习计划
研究是如何设计的?
设计细节
- 主要用途:放映
研究衡量的是什么?
主要结果指标
结果测量 |
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Classification of annual sputum samples cytologically
|
Correlation of sputum cytological atypia (moderate atypia or worse) with lung cancer incidence
|
Correlation of changes in sputum cytology with lung cancer incidence
|
次要结果测量
结果测量 |
---|
Risk factors for lung cancer that may effect the association between sputum cytology and lung cancer risk
|
合作者和调查者
调查人员
- 首席研究员:Timothy Kennedy、University of Colorado, Denver
研究记录日期
研究主要日期
学习开始
初级完成 (实际的)
研究完成 (实际的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (估计)
研究记录更新
最后更新发布 (估计)
上次提交的符合 QC 标准的更新
最后验证
更多信息
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