Phenethyl Isothiocyanate in Preventing Lung Cancer in People Who Smoke

Study Overview
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Brief Summary
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RATIONALE: Chemoprevention therapy is the use of certain drugs to try to prevent the development or recurrence of cancer. Phenethyl isothiocyanate may be effective in preventing lung cancer in smokers. PURPOSE: Phase I trial of phenethyl isothiocyanate in preventing lung cancer in people who smoke.

Detailed Description
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OBJECTIVES: I. Determine the maximum tolerated dose of oral phenethyl isothiocyanate in smokers. II. Measure the steady state pharmacokinetics of phenethyl isothiocyanate required to maintain a steady state of this substance during the hours of 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK) exposure in these patients. III. Obtain preliminary data on the perturbation of NNK metabolism by phenethyl isothiocyanate in these patients. OUTLINE: Patients complete a questionnaire containing a smoking and dietary log to assess cigarette and cruciferous vegetable consumption. Patients receive phenethyl isothiocyanate orally 4 times a day for 30 days. Cohorts of 3-6 patients receive escalating doses of phenethyl isothiocyanate until the maximum tolerated dose (MTD) is determined. The MTD is defined as the dose preceding that at which 2 of 6 patients experience dose limiting toxicities. Patients are followed on days 35, 36, and 43. PROJECTED ACCRUAL: A total of 15-27 patients will be accrued for this study over 4-6 months.

Official Title
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A Phase I - Part B Multiple Dose Trial of Phenethyl Isothiocyanate

Conditions
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Lung Cancer

Intervention / Treatment
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* Drug: phenethyl isothiocyanate


Participation Criteria
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Eligibility Criteria
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DISEASE CHARACTERISTICS: Asymptomatic smokers who either refuse to or cannot stop smoking Urinary cotinine levels greater than 100 ng/mL Willing to adhere to certain dietary restrictions limiting intake of cruciferous vegetables (watercress, broccoli, radishes, mustard, brussels sprouts) while on study PATIENT CHARACTERISTICS: Age: Not specified Performance status: Not specified Life expectancy: Not specified Hematopoietic: WBC at least 3,500/mm3 Platelet count at least 100,000/mm3 Hepatic: Bilirubin less than 1.6 mg/dL Transaminases less than 2 times normal Renal: Creatinine less than 1.6 mg/dL Urinary RBC levels 0-2 Urinary WBC levels at least 0-2 Pulmonary: No dyspnea at rest Other: No concurrent illness, condition, or symptom that would preclude study Not pregnant or nursing Negative pregnancy test Fertile patients must use effective contraception PRIOR CONCURRENT THERAPY: Not specified
Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Prevention


Arms and Interventions

| Intervention/Treatment |
| --- |
|Drug: phenethyl isothiocyanate|nan|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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non-small cell lung cancer, small cell lung cancer