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Tropical Journal of Pharmaceutical Research
Pharmacotherapy Group, Faculty of Pharmacy, University of Benin, Benin City, Nigeria
ISSN: 1596-5996
EISSN: 1596-5996
Vol. 11, No. 1, 2012, pp. 1-8
Bioline Code: pr12001
Full paper language: English
Document type: Research Article
Document available free of charge

Tropical Journal of Pharmaceutical Research, Vol. 11, No. 1, 2012, pp. 1-8

 en Development and Targeting Efficiency of Irinotecan Engineered Proniosomes
Goudanavar, Prakash S & Joshi, Vijay G


Purpose: This study is aimed at achieving improvement in the efficacy, reduced toxicity and enhancement of therapeutic index of irinotecan.
Methods: Proniosomes of irinotecan hydrochloride trihydrate were prepared by slurry method using different surfactants, cholesterol and dicetyl phosphate. The formulations were then characterized with respect to shape, surface morphology, entrapment efficiency, in vitro drug release, in vivo drug targeting and stability.
Results: The proniosomes were smooth in texture indicating, thin and uniform coating over maltodextrin powder. The highest entrapment efficiency was found for formulation F2 (74.9 ± 2.7 %). The highest cumulative drug release in 24 h was achieved with formulation F3 (98.2 %) In vivo results for the proniosomes reveal that the drug was preferentially targeted to liver followed by lung and spleen. Stability studies indicate that 4 ºC was the most suitable condition for the storage of formulation F2.
Conclusion: Proniosomes offer a suitable alternative colloidal carrier approach to achieving drug targeting. Proniosomes containing irinotecan are retained at targeted sites and are capable of releasing drug for an extended period of time.

Irinotecan, proniosomes, Drug targeting, In vivo tissue distribution, Stability studies.

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