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Simultaneous determination of emtricitabine, tenofovir alafenamide fumarate and dolutegravir sodium by validated stability-indicating RP-HPLC-DAD method - 03/01/23

Détermination simultanée de l’emtricitabine, du fumarate de ténofovir alafénamide et du dolutégravir sodique par la méthode RP-HPLC-DAD validée indiquant la stabilité

Doi : 10.1016/j.pharma.2022.08.006 
S.M. Rathod a, , N.C. Patel b, P.U. Patel c
a Department of Pharmaceutical Chemistry and Quality Assurance, APMC College of Pharmaceutical Education and Research, Himatnagar, 383001 Gujarat, India 
b Department of Pharmacognosy, APMC College of Pharmaceutical Education and Research, Himatnagar, 383001 Gujarat, India 
c Department of Pharmaceutical Chemistry and Quality Assurance, S. K. Patel College of Pharmaceutical Education and Research, Ganpat University, Ganpat Vidyanagar, Mehsana-Gozaria Highway, 384012 Gujarat, India 

Corresponding author.

Graphical abstract




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Highlights

Reverse phase HPLC in a gradient mode was developed for the separation of drugs.
Novel stability indicating RP HPLC method for simultaneous estimation of Emtricitabine, Tenofovir Alafenamide and Dolutegravir.
Full validation of developed chromatographic method as per ICH Q2 (R1) guideline.
The developed method is rapid, accurate, precise, robust, specific and selective.

Il testo completo di questo articolo è disponibile in PDF.

Summary

Objective

The purpose of this research was to develop and validate a stability-indicating RP–HPLC technique for simultaneous quantification of Emtricitabine (EMT), Tenofovir Alafenamide Fumarate (TEN), and Dolutegravir Sodium (DOL) in bulk and in their combined formulation.

Material and methods

The developed approach was done on Exterra C18 column (150×4.6mm, 5μm) and Methanol and Buffer (comprising 0.1 (v/v) of Triethylamine and o-phosphoric acid in water, pH 2.6) as mobile phase in the proportion of 75:25 (v/v), eluted at 1mL/min. The analytes were quantified using DAD detector at 265nm.

Results

The approach was validated in accordance with the ICH guidelines. Linearity, precision, accuracy, specificity, Limit of Detection (LOD), Limit of Quantitation (LOQ), and robustness were used to validate the proposed method. Linear response was found in the range of 500–1500μg/mL for EMT, 62.5–187.5μg/mL for TEN and 125–375μg/mL for DOL. The LOD values of EMT, TEN and DOL were found 91.78μg/mL, 10.47μg/mL and 19.28μg/mL correspondingly. The LOQ values of EMT, TEN and DOL were found and 278.11μg/mL, 31.74μg/mL and 58.42μg/mL correspondingly. The assay outcomes for all drugs were observed between 99.11–100.84%. To access the method's stability indicating capabilities, the drugs were exposed to various environmental (acid, alkaline, neutral, oxidative, photolytic and thermal) conditions.

Conclusion

The established approach was considered to be accurate, linear, precise, specific, robust and it can be utilized to analyse the drugs mentioned in its tablet.

Il testo completo di questo articolo è disponibile in PDF.

Résumé

Objectif

Le but de cette recherche était de développer et de valider une technique RP-HPLC indiquant la stabilité pour la quantification simultanée de l’emtricitabine (EMT), du fumarate de ténofovir alafénamide (TEN) et du dolutégravir sodique (DOL) en vrac et dans leur formulation combinée.

Matériels et méthodes

L’approche développée a été réalisée sur colonne Exterra C18 (150×4,6mm, 5μm) et Méthanol et Tampon (comprenant 0,1 (v/v) de triéthylamine et d’acide o-phosphorique dans l’eau, pH 2,6) comme phase mobile dans la proportion de 75:25 (v/v), éluée à 1mL/min. Les analytes ont été quantifiés à l’aide d’un détecteur DAD à 265nm.

Résultats

L’approche a été validée conformément aux directives de l’ICH. La linéarité, la précision, l’exactitude, la spécificité, la limite de détection (LOD), la limite de quantification (LOQ) et la robustesse ont été utilisées pour valider la méthode proposée. Une réponse linéaire a été trouvée dans la plage de 500 à 1500μg/mL pour EMT, 62,5 à 187,5μg/mL pour TEN et 125 à 375μg/mL pour DOL. Les valeurs LOD d’EMT, TEN et DOL ont été trouvées 91,78μg/mL, 10,47μg/mL et 19,28μg/mL en conséquence. Les valeurs LOQ d’EMT, TEN et DOL ont été trouvées et 278,11μg/mL, 31,74μg/mL et 58,42μg/mL en conséquence. Les résultats des tests pour tous les médicaments ont été observés entre 99,11 et 100,84 %. Pour accéder aux capacités d’indication de la stabilité de la méthode, les médicaments ont été exposés à diverses conditions environnementales (acides, alcalines, neutres, oxydatives, photolytiques et thermiques).

Conclusion

L’approche établie a été considérée comme exacte, linéaire, précise, spécifique, robuste et elle peut être utilisée pour analyser les médicaments mentionnés dans son comprimé.

Il testo completo di questo articolo è disponibile in PDF.

Keywords : Stability indicating HPLC method, Forced degradation, Dolutegravir sodium, Emtrictabine, Tenofovir alafenamide fumarate, Simultaneous estimation

Mots clés : Méthode HPLC indiquant la stabilité, Dégradation forcée, Dolutégravir sodique, Emtrictabine, Fumarate de ténofovir alafénamide, Estimation simultanée


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Vol 81 - N° 1

P. 94-106 - Gennaio 2023 Ritorno al numero
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