The primary objective of this study is to assess whether basal cell carcinoma (BCC) lesions surgically treated with curettage, followed by imiquimod 5% cream as postsurgical adjuvant therapy, will have an improved cure rate over the ED/C historical norm of approximately 70% at 1-year posttreatment follow-up. A secondary objective is to assess cosmetic outcome.
This was an open-label, phase IIIb, multicenter, single arm, historical-controlled study. Biopsy-confirmed BCC lesions (1 per subject) were excised by curettage, with no electrodessication. Approximately 1 week later, treatment with imiquimod 5% cream was initiated. Imiquimod was applied to the target BCC once daily, 5 times per week (5x/week) for up to 6 weeks. Rest periods were allowed as needed. Subjects reported to the study center at treatment weeks 1, 2, and 6, and posttreatment at weeks 12, 26, and 52. At treatment week 6 and all posttreatment visits, the investigator clinically assessed the target site for tumor clearance and cosmetic outcome. A template made at initiation and created from clear plastic overlay aided in locating the target tumor site. If the investigator identified a lesion that had occurred or recurred at the target site, the subject was discontinued from the study and counted as a recurrence/persistence (R/P).
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
63
Imiquimod 5% cream applied once daily 5x/week for up to 6 weeks
Unnamed facility
Grass Valley, California, United States
Unnamed facility
Loma Linda, California, United States
Unnamed facility
New York, New York, United States
Number of subjects with recurrence
Primary variable was the proportion of subjects with recurrence/persistence (R/P)of BCC at 1 year posttreatment
Time frame: 1 year posttreatment
Cosmetic outcome of the target lesion
The cosmetic outcome of the target lesion at 1 year posttreatment was the secondary efficacy measurement. The investigator judged cosmetic outcome by using a visual analog scale (VAS) to assess the parameters of hypo- and hyperpigmentation,roughness, scarring, and overall skin health and appearance.
Time frame: 1 year posttreatment
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