<abstract xmlns="http://www.w3.org/1999/xhtml">Background: Indinavir, one component in the HAART regimen, plays an important role in the current treatment of HIV-infection and AIDS. Availability and accessibility of qualified generic indinavir to patients may be the keys for the success of treatment. Objective: Compare the rate and extent of absorption of a generic indinavir formulation with those of an original formulation in healthy Thai volunteers. Method: A randomized, two-period, two-treatment, two-sequence, crossover study with a two-week washout period was performed. A single dose of 2×400 mg indinavir capsules of each formulation was administered to 24 volunteers after an overnight fast. Indinavir plasma concentrations up to 10 hours postdose were determined using high-performance liquid chromatography. Relevant pharmacokinetic parameters were derived and tested for statistically significant differences using ANOVA and criteria of bioequivalence determination were applied. Results: No statistically significant differences were demonstrated for pharmacokinetic parameters including Cmax, Tmax, AUC0-t, and AUC0-∞ derived from the two formulations (n=23, p>0.05). The criteria of bioequivalence determination i.e., the 90% confidence intervals on the mean ratio (generic/original formulation) of natural logarithmtransformed values of Cmax, AUC0-t and AUC0-∞ were 86.3-106.5%, 94.0-108.5%, and 93.9-108.5%, respectively. Conclusion: As the mean ratios of Cmax, AUC0-t and AUC0-∞ of the generic and original formulations were entirely within the guideline range of bioequivalence (80.0-125.0%), the two formulations were considered bioequivalent in terms of rate and extent of absorption.</abstract>

Background: Indinavir, one component in the HAART regimen, plays an important role in the current treatment of HIV-infection and AIDS. Availability and accessibility of qualified generic indinavir to patients may be the keys for the success of treatment. Objective: Compare the rate and extent of absorption of a generic indinavir formulation with those of an original formulation in healthy Thai volunteers. Method: A randomized, two-period, two-treatment, two-sequence, crossover study with a two-week washout period was performed. A single dose of 2×400 mg indinavir capsules of each formulation was administered to 24 volunteers after an overnight fast. Indinavir plasma concentrations up to 10 hours postdose were determined using high-performance liquid chromatography. Relevant pharmacokinetic parameters were derived and tested for statistically significant differences using ANOVA and criteria of bioequivalence determination were applied. Results: No statistically significant differences were demonstrated for pharmacokinetic parameters including Cmax, Tmax, AUC0-t, and AUC0-∞ derived from the two formulations (n=23, p>0.05). The criteria of bioequivalence determination i.e., the 90% confidence intervals on the mean ratio (generic/original formulation) of natural logarithmtransformed values of Cmax, AUC0-t and AUC0-∞ were 86.3-106.5%, 94.0-108.5%, and 93.9-108.5%, respectively. Conclusion: As the mean ratios of Cmax, AUC0-t and AUC0-∞ of the generic and original formulations were entirely within the guideline range of bioequivalence (80.0-125.0%), the two formulations were considered bioequivalent in terms of rate and extent of absorption.

Bioequivalence of indinavir capsules in healthy volunteers

Asian Biomedicine

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

{"article-title":"Bioequivalence of indinavir capsules in healthy volunteers"}

Background: Indinavir, one component in the HAART regimen, plays an important role in the current treatment of HIV-infection and AIDS. Availability and...

Bioequivalence of indinavir capsules in healthy volunteers

Published Online: Apr 13, 2018

Page range: 95 - 101

DOI: https://doi.org/10.2478/abm-2010-0011

Keywords
Bioequivalence, indinavir, pharmacokinetics, protease inhibitors, Thai volunteers

© 2018

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Bioequivalence of indinavir capsules in healthy volunteers

Published Online: Apr 13, 2018

Page range: 95 - 101

DOI: https://doi.org/10.2478/abm-2010-0011

KeywordsBioequivalence, indinavir, pharmacokinetics, protease inhibitors, Thai volunteers

© 2018

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
Bioequivalence, indinavir, pharmacokinetics, protease inhibitors, Thai volunteers