A Phase I Study for Superficial Basal Cell Carcinoma to Determine the Irradiance - Dependent Pain Threshold for Methylaminolevulinate (MAL)/PDT.
PRIMARY OBJECTIVES: I. To determine the "low" initial irradiance that causes no or minimal
(pain grade of < 4) during the time period during which 90 +/- 10% photo bleaching of
protoporphyrin IX (PplX) in the lesion occurs, and which precedes the "high" irradiance
portion of MAL/PDT. II. To determine the effects of preceding "low" irradiance on the pain
level of the "high" irradiance portion of MAL-PDT. SECONDARY OBJECTIVES: I. To determine
the effects of irradiance on lesion perfusion. II. To determine PpIX and Total Vit D
content in blood. TERTIARY OBJECTIVES: I. To monitor the clinical outcomes of the
treatments for initial response and recurrences. OUTLINE: Patients are randomized to 1 of
2 treatment arms. GROUP I: Patients apply methyl-5-aminolevulinate hydrochloride (MAL)
cream on the lesions and the surrounding normal skin. Beginning 3 hours later, patients
undergo laser light treatment for 3-5 minutes. GROUP II: Patients apply MAL cream on the
lesions and the surrounding normal skin. Beginning 3 hours later, patients undergo
light-emitting diode treatment for 10-20 minutes. After completion of study treatment,
patients are followed up at 5-7 days, at 6-12 months, and at 24 months.
Interventional
Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment
Irradiance-dependent pain threshold
30-60 sec after the initial "low" irradiance treatment, every 3-5 min until irradiance increase, 30-60 sec after the "high" irradiance increase, and every 3-5 min until end of treatment
No
Nathalie Zeitouni
Principal Investigator
Roswell Park Cancer Institute
United States: Food and Drug Administration
I 175410
NCT01292668
March 2011
Name | Location |
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Roswell Park Cancer Institute | Buffalo, New York 14263 |