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Int J Dermatol. 2008 Jan;47(1):78-82. doi: 10.1111/j.1365-4632.2007.03363.x.

Solasodine glycoalkaloids: a novel topical therapy for basal cell carcinoma. A double-blind, randomized, placebo-controlled, parallel group, multicenter study.

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Department of Dermatology, Royal London Hospital, London, UK.



To assess the safety and efficacy of a 0.005% mixture of solasodine glycosides (Zycure) in the treatment of basal cell carcinoma. Design Double-blind, randomized, and vehicle-controlled, parallel group study.


Ten centers in the United Kingdom. Participants Male, n = 50; female, n = 44; age range, 32-95 years (Table 1).


Ninety-four patients were randomized on a 2 : 1 ratio (n = 62, Zycure; n = 32, vehicle). Histologically confirmed lesions were treated double blinded, twice daily under occlusion with Zycure or vehicle for 8 weeks. Patients were reviewed fortnightly for adverse effects and overall response. Successfully treated patients were followed up at six-month intervals for a year.


The primary efficacy endpoint was histologically confirmed clearance of the basal cell carcinoma (2-mm punch biopsy) at the end of 8-week treatment.


Efficacy (intention-to-treat population) at 8 weeks was 66% (41/62) in the Zycure group, compared to 25% (8/32) in the vehicle group (P < 0.001; Cochran-Mantel-Haenszel test). Ninety percent (37/41) of the Zycure group completed follow-up at six-month intervals for 1 year, of whom 78% (29/37) had no recurrence. There were no major treatment-related adverse effects, although 10 patients in Zycure group did not complete the treatment protocol for various reasons.


We conclude that the solasodine glycoside cream Zycure is a safe therapy for basal cell carcinoma, with a cure rate of 66% at 8 weeks and 78% at 1 year follow-up.

[Indexed for MEDLINE]

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