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About
The purpose of this study is to test the preventive effects of a combination of drugs: polyphenon E (PPE) derived from green tea extracts, and erlotinib. Because this combination of drugs has not been tested in humans before for the prevention of cancer, it is not clear which dose of each agent will be optimal in combination.
We will test the safety of the combination of PPE and erlotinib and see what effects (good and/or bad) it has on the patient's premalignant lesion, and find the highest dose of each agent that can be given in combination without causing severe side effects.
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Inclusion and exclusion criteria
Inclusion Criteria
Participants with premalignant lesions (mild dysplasia, moderate dysplasia, severe dysplasia, or carcinoma in situ) of the head and neck, as confirmed by biopsy within the 4 months prior to study entry or a treated primary T1N0 or T2N0 squamous cell carcinoma will be eligible.
For patients with T1N0 or T2N0 treated squamous cell carcinoma, they must have been free of disease for a minimum period of 8 weeks, up to a maximum of 3 years following completion of surgery and/or radiotherapy.
Eligible tumor and premalignant lesion sites include oral cavity (buccal mucosal, gingival, floor of mouth, dorsal/ventral tongue, pharyngeal wall), oropharynx, larynx (glottis, supraglottis, subglottis, epiglottis), hypopharynx paranasal sinus and nasal cavity.
Patients with a treated tumor 1-node 0 (T1N0) or tumor 2-node 0 (T2N0) squamous cell carcinoma may have oral premalignant lesions (i.e., hyperplasia, dysplasia, carcinoma in situ) at the time of study entry (provided their Stage I or II disease has been definitively treated).
Lesion sites include oral cavity (buccal mucosa, gingival, floor of mouth, dorsal/ventral tongue, pharyngeal wall), oropharynx, hypopharynx,larynx (glottis, supraglottis, subglottis, epiglottis), nasopharynx and paranasal sinuses.
Eastern Cooperative Oncology Group (ECOG)/Zubrod performance status of 0-1.
No medical contraindications for flexible laryngoscopy using topical anesthesia, and in the setting of a contraindication to topical anesthesia, general anesthesia may not be used as a substitute.
General anesthesia, if indicated, is acceptable in patients whose lesions would require general anesthesia for laryngoscopy and biopsy according to routine standard of care.
Blood counts: total neutrophil count > 1,500/mm³; platelet count > 100,000/mm³.
Adequate liver function:
Adequate renal function: serum creatinine < 1.5 mg/dl.
Hemoglobin level ≥ 11gm/dl (age adjusted if appropriate) provided by the reference laboratory performing the test.
Patients not taking warfarin must have prothrombin time (PT)/partial thromboplastin time (PTT) levels ≤ 1.5 times the upper limit of normal provided by the reference laboratory performing the test.
Adequate pulmonary function: forced expiratory volume at one second (FEV1) and forced vital capacity (FVC) at least 60% predicted value by spirometry.
Signed written informed consent.
The effects of polyphenon E on the developing human fetus at the recommended dose are unknown. For this reason and because polyphenon E may be teratogenic, women of child-bearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) prior to study entry and for the duration of study participation. Should a woman become pregnant or suspect she is pregnant while participating in this study, she should inform her study physician immediately.
Women of child-bearing potential must also have a negative urine pregnancy test (β-HCG) within 72 hours of receiving treatment.
Must be able to swallow the oral doses of erlotinib and PPE.
Must be willing to abstain from drinking green tea or taking supplements containing green tea or green tea compounds, for the duration of the investigation and for 30 days prior to study entry.
Please note that patients with a treated T1N0 or T2N0 squamous carcinoma and who do not have a pre-malignant measurable lesion at the time of study entry will not be subjected to a biopsy but will have cytobrush samples taken as specified in the protocol.
Exclusion Criteria
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25 participants in 1 patient group
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Data sourced from clinicaltrials.gov
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