Phase I Trial of Photodynamic Therapy With HPPH (2-1[Hexyloxyethyl]-2-devinylpyropheophorbide-a) for Treatment of Dysplasia, Carcinoma in Situ and T1 Carcinoma of the Larynx
Phase I Trial of Photodynamic Therapy With HPPH (2-1[Hexyloxyethyl]-2-devinylpyropheophorbide-a) for Treatment of Dysplasia, Carcinoma in Situ and T1 Carcinoma of the Larynx
RATIONALE: Photodynamic therapy uses a drug, such as HPPH, that becomes active when it is exposed to a certain kind of light. When the drug is active, tumor cells are killed. This may be an effective treatment for laryngeal cancer.
PURPOSE: This phase I trial is studying the side effects and best dose of laser light therapy when given together with HPPH in treating patients with dysplasia, cancer in situ, or invasive cancer of the larynx.
OBJECTIVES:
Primary
Secondary
OUTLINE: This is a dose-escalation study of laser light therapy.
Patients undergo photodynamic therapy comprising HPPH IV over 1 hour on day 1 and laser light therapy to the tumor on day 2. Approximately 8 weeks later, patients with a partial response, no response, or a geographical miss may receive a second course of treatment.
After completion of study treatment, patients are followed at 1 week, 1 month, 3 months, and then periodically thereafter.
DISEASE CHARACTERISTICS:
Biopsy-confirmed diagnosis of 1 of the following:
Mild to severe dysplasia of the larynx
Squamous cell carcinoma in situ of the larynx
T1 squamous cell carcinoma of the larynx
Newly diagnosed or recurrent disease
PATIENT CHARACTERISTICS:
PRIOR CONCURRENT THERAPY: