Sputum Cytology in Screening Heavy Smokers For Lung Cancer
Study Details
Study Description
Brief Summary
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.
Condition or Disease | Intervention/Treatment | Phase |
---|---|---|
|
Phase 2 |
Detailed Description
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.
Study Design
Outcome Measures
Primary Outcome Measures
- 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 []
Secondary Outcome Measures
- Risk factors for lung cancer that may effect the association between sputum cytology and lung cancer risk []
Eligibility Criteria
Criteria
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
Contacts and Locations
Locations
Site | City | State | Country | Postal Code | |
---|---|---|---|---|---|
1 | University of Colorado Health Sciences Center - Denver | Denver | Colorado | United States | 80262 |
Sponsors and Collaborators
- University of Colorado, Denver
- National Cancer Institute (NCI)
Investigators
- Principal Investigator: Timothy Kennedy, University of Colorado, Denver
Study Documents (Full-Text)
None provided.More Information
Publications
None provided.- 92-0392
- UCHSC-92-392