Phase I Clinical Trial Using Topical Silicon Phthalocyanine (Pc 4) Photodynamic Therapy (PDT) for the Treatment of Pre-Malignant and Malignant Skin Conditions
OBJECTIVES:
- Determine the maximum tolerated dose of photodynamic therapy using topically delivered
silicon phthalocyanine 4 in patients with actinic keratosis, Bowen's disease, squamous
cell or basal cell skin cancer, or stage IA, IB, IIA, or IIB mycosis fungoides.
- Determine the safety and toxicity of this therapy with emphasis on whether it induces
photosensitivity in non-treated sites in these patients.
- Determine the antitumor mechanism of this therapy, by monitoring tissue changes via
clinical, histological, immunohistochemical, and other biochemical markers, in these
patients.
- Determine, preliminarily, the dose of this therapy that results in highest clearing
rates in these patients.
OUTLINE: This is a dose-escalation study.
Patients receive topical silicon phthalocyanine 4 (Pc 4). One hour later, patients undergo
photodynamic therapy. Treatment repeats weekly for up to 3 weeks (up to 3 total treatments
for the same lesion OR up to 3 lesions treated if multiple lesions are present).
Cohorts of 3 patients receive escalating doses of Pc 4 and visible light until the maximum
tolerated dose (MTD) is determined. The MTD is defined as the dose preceding that at which 1
of 3 patients experiences dose-limiting toxicity. Three additional patients are treated at
the MTD.
After completion of study therapy, patients are followed for up to 2 weeks.
PROJECTED ACCRUAL: A total of 16-45 patients will be accrued for this study.
Interventional
Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
Maximum tolerated dose
Treatment repeats weekly for up to 3 weeks. Cohorts of 3 patients receive escalating doses of Pc 4 and visible light until the maximum tolerated dose (MTD) is determined.
Yes
Kevin Cooper, MD
Principal Investigator
Case Medical Center, University Hospitals Seidman Cancer Center, Case Comprehensive Cancer Center
United States: Federal Government
CASE1Y04
NCT00103246
September 2004
August 2010
Name | Location |
---|---|
Case Medical Center, University Hospitals Seidman Cancer Center, Case Comprehensive Cancer Center | Cleveland, Ohio 44106-5065 |