Pulse itraconazole 400 mg daily in the treatment of chromoblastomycosis
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Published on: March 14, 2014
1Mycology Department, Institute of Dermatology, Bangkok, Thailand. rataporn@health.morph.go.th
Abstract:
Pulse itraconazole is effective in the treatment of chromoblastomycosis caused by Fonsecaea pedrosoi. Six patients, mean 62.3 years (range 45-79), mean duration 103 months (range 4 months to 30 years), were included in this study. F. pedrosoi was the only isolated organism. Four patients (66.7%) were cured by 12 months. Two patients (33.3%) failed to respond fully to treatment; however, one patient whose culture remained positive showed > 50% improvement at the end of study. Data showed that duration and severity were not predictive of treatment response. No side-effects were noted. Treatment should be continued until absence of organisms is proven by histology and tissue culture. Pulse regimen is more economical with better compliance than the conventional continuous 200-400 mg daily regimen, although optimum treatment duration depends on individual cases.
Insights
Pulse itraconazole therapy effectively treats chromoblastomycosis caused by Fonsecaea pedrosoi. This regimen offers a more economical and compliant alternative to continuous dosing, with no observed side-effects.
Area of Science:
- Mycology
- Dermatology
- Infectious Diseases
Background:
- Chromoblastomycosis is a chronic fungal infection often caused by Fonsecaea pedrosoi.
- Treatment of chromoblastomycosis can be challenging, requiring prolonged therapy.
- Conventional itraconazole dosing may present challenges with compliance and cost.
Purpose of the Study:
- To evaluate the efficacy and safety of a pulse itraconazole regimen for treating chromoblastomycosis.
- To assess the impact of disease duration and severity on treatment outcomes.
- To compare the pulse regimen with conventional itraconazole therapy.
Main Methods:
- A study involving six patients with chromoblastomycosis caused by F. pedrosoi.
- Patients were treated with a pulse itraconazole regimen.
- Treatment response was assessed over 12 months, with cure defined by absence of organisms on histology and culture.
Main Results:
- Four out of six patients (66.7%) achieved cure within 12 months.
- Two patients (33.3%) showed incomplete response, but one had over 50% improvement.
- Disease duration and severity did not predict treatment response. No side-effects were reported.
Conclusions:
- Pulse itraconazole is an effective and safe treatment for chromoblastomycosis caused by F. pedrosoi.
- The pulse regimen is more economical and offers better compliance than continuous dosing.
- Treatment should continue until fungal absence is histologically and culturally confirmed.
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