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Application of an LC-MS/MS method for reliable determination of amodiaquine, N-desethylamodiaquine, artesunate and dihydroartemisinin in human plasma for a bioequivalence study in healthy Indian subjects.

Publication ,  Journal Article
Rathod, DM; Patel, KR; Mistri, HN; Jangid, AG; Shrivastav, PS; Sanyal, M
Published in: J Pharm Biomed Anal
May 30, 2016

A sensitive and high throughput bioanalytical method has been developed for reliable determination of amodiaquine (AQ), N-desethylamodiaquine (DEAQ), artesunate (AS) and dihydroartemisinin (DHA) in human plasma by LC-MS/MS. The method employs a solid phase extraction procedure without an evaporation step and with optimum use of organic solvents to circumvent degradation of artemisinin derivatives. The analytes and their deuterated internal standards (ISs) were analyzed on Hypersil Gold (100 mm × 4.6mm, 5 μm) column using acetonitrile and 2.0mM ammonium formate (pH 2.50) in 80:20 (v/v) ratio as the mobile phase. A triple quadrupole mass spectrometer equipped with an electrospray ionization interface was used to detect and quantify the analytes. The method was established over the concentration range of 0.250-30.0 ng/mL, 1.50-180 ng/mL, 2.00-600 ng/mL and 5.00-1400 ng/mL for AQ, DEAQ, AS and DHA respectively using 250 μL human plasma. The intra-day and inter-day accuracy and precision (% CV) across quality controls varied from 93.3-105.0% and 1.7-8.3 respectively for all the analytes. The stability was assessed in whole blood as well as in plasma samples under different conditions. All four analytes were stable in whole blood up to 2h on melting ice. The long term stability in plasma was ascertained up to 90 days. IS-normalized matrix factors ranged from 0.988-1.023 for all the analytes. The method was successfully applied to a bioequivalence study using 50mg artesunate and 135 mg amodiaquine fixed dose formulation in 14 healthy subjects.

Duke Scholars

Published In

J Pharm Biomed Anal

DOI

EISSN

1873-264X

Publication Date

May 30, 2016

Volume

124

Start / End Page

67 / 78

Location

England

Related Subject Headings

  • Therapeutic Equivalency
  • Tandem Mass Spectrometry
  • India
  • Humans
  • Chromatography, Liquid
  • Artesunate
  • Artemisinins
  • Analytical Chemistry
  • Amodiaquine
  • 1115 Pharmacology and Pharmaceutical Sciences
 

Citation

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Rathod, D. M., Patel, K. R., Mistri, H. N., Jangid, A. G., Shrivastav, P. S., & Sanyal, M. (2016). Application of an LC-MS/MS method for reliable determination of amodiaquine, N-desethylamodiaquine, artesunate and dihydroartemisinin in human plasma for a bioequivalence study in healthy Indian subjects. J Pharm Biomed Anal, 124, 67–78. https://doi.org/10.1016/j.jpba.2016.02.021
Rathod, Dhiraj M., Keyur R. Patel, Hiren N. Mistri, Arvind G. Jangid, Pranav S. Shrivastav, and Mallika Sanyal. “Application of an LC-MS/MS method for reliable determination of amodiaquine, N-desethylamodiaquine, artesunate and dihydroartemisinin in human plasma for a bioequivalence study in healthy Indian subjects.J Pharm Biomed Anal 124 (May 30, 2016): 67–78. https://doi.org/10.1016/j.jpba.2016.02.021.
Journal cover image

Published In

J Pharm Biomed Anal

DOI

EISSN

1873-264X

Publication Date

May 30, 2016

Volume

124

Start / End Page

67 / 78

Location

England

Related Subject Headings

  • Therapeutic Equivalency
  • Tandem Mass Spectrometry
  • India
  • Humans
  • Chromatography, Liquid
  • Artesunate
  • Artemisinins
  • Analytical Chemistry
  • Amodiaquine
  • 1115 Pharmacology and Pharmaceutical Sciences