RATIONALE: Photodynamic therapy uses a drug that becomes active when it is exposed to a certain kind of light. When the drug is active, tumor cells are killed. PURPOSE: This randomized phase I trial is studying the side effects and best dose of photodynamic therapy in treating patients with premalignant or early stage head and neck tumors.
OBJECTIVES: Primary * To evaluate the toxicities associated with aminolevulinic acid-mediated photodynamic therapy when administered continuously or in fractionated doses in patients with premalignant or early stage head and neck lesions. Secondary * To assess the efficacy of this regimen in these patients. OUTLINE: This is a dose-escalation study of photodynamic therapy. Patients are randomized to 1 of 2 treatment arms. * Arm I: Patients receive oral aminolevulinic acid and then undergo continuous photodynamic therapy 4-6 hours later. * Arm II: Patients receive aminolevulinic acid as in arm I and then undergo fractionated photodynamic therapy 4-6 hours later. After completion of study therapy, patients are followed up at 1 month, every 3 months for 2 years, and then annually thereafter.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
35
Patients undergo continuous or fractionated photodynamic therapy.
Abramson Cancer Center of the University of Pennsylvania
Philadelphia, Pennsylvania, United States
Dose-limiting toxicity
Time frame: One year
Maximum tolerated dose
Time frame: 90 days
Response rate
Time frame: One year
Duration of response
Time frame: One year
Time to progression
Time frame: 2 years
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