COMPARATIVE EFFICACY AND TOLERABILITY OF ECONAZOLE LIPOSOMAL GEL 1-PERCENT, BRANDED ECONAZOLE CONVENTIONAL CREAM 1-PERCENT AND GENERIC CLOTRIMAZOLE CREAM 1-PERCENT IN TINEA-PEDIS
Hc. Korting et al., COMPARATIVE EFFICACY AND TOLERABILITY OF ECONAZOLE LIPOSOMAL GEL 1-PERCENT, BRANDED ECONAZOLE CONVENTIONAL CREAM 1-PERCENT AND GENERIC CLOTRIMAZOLE CREAM 1-PERCENT IN TINEA-PEDIS, Clinical drug investigation, 14(4), 1997, pp. 286-293
This controlled, double-blind trial investigated the use of liposomes
as a drug carrier system. Treatment either encompassed once-daily appl
ication for 14 days of econazole liposome gel 1%, branded econazole cr
eam 1% or a generic clotrimazole cream 1%. For confirmatory data analy
sis mycological cure defined as negative findings upon microscopy and
culture on day 7 served as a prime target parameter. A total of 535 pa
tients were recruited. Intent-to-treat analysis revealed no significan
t differences. Analysis based on evaluable patients in particular tend
ed to indicate a higher cure rate based on microscopy and culture look
ed at simultaneously on day 28 in the econazole liposome gel treatment
group. Values obtained were 80.2, 73.1 and 69.0%, respectively, for e
conazole liposome gel, branded econazole cream and generic clotrimazol
e cream (P = 0.080, Cochran-Mantel-Haenszel test). Moreover, tolerabil
ity was considered slightly better in the econazole liposome gel group
, compared with the econazole cream and clotrimazole cream treatment g
roups, being classified as very good in 69.7, 62.6 and 64.9% of patien
ts, respectively. Thus, further trials addressing the benefit-to-risk
ratio appear warranted in which analysis should be based on evaluable
patients rather than intent-to-treat.