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Sowińska D, Pogorzelska A, Rakicka M, Sznura J, Janowska J, Gorzycka P, Malak M, Karażniewicz-Łada M. Development and Validation of an RP-HPLC Method for Determination of Atorvastatin and its Hydroxyl Metabolites in Human Plasma. CURR PHARM ANAL 2020. [DOI: 10.2174/1573412914666180912110154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Atorvastatin (AT) belongs to cholesterol-lowering agents, commonly used in
patients with an increased risk of cardiovascular disease. The drug, as well as its hydroxyl metabolites,
exhibit pharmacological activity, and their plasma levels may be helpful in the assessment of the therapeutic
effectiveness.
Objective:
Development and validation of a fast and reproducible RP-HPLC method with UV detection
for the simultaneous determination of atorvastatin and its active metabolites, para-hydroxy-atorvastatin
(p-OH-AT) and ortho-hydroxy-atorvastatin (o-OH-AT) in human plasma.
Methods:
Optimal conditions of chromatographic separation of the analytes, as well as rosuvastatin,
chosen as an internal standard, were studied. The absorbance of the compounds was measured at λ=248
nm. Validation of the method was performed. The usefulness of the method was confirmed for determination
of the analytes in plasma of patients treated with the drug.
Results:
Total peak separation was achieved at LiChrospher 100 RP-18 column with a mobile phase
composed of methanol and water (1:1,v:v) and a flow rate of 1.2 ml/min. The method was linear in the
ranges of 0.025 - 1.0 μg/ml for AT, o-OH-AT and p-OH-AT. Intra- and inter-assay precision expressed
as relative standard deviation was ≤13% for AT, ≤12% for p-OH-AT and ≤11% for o-OH-AT. Intraand
inter-day accuracy of the method, expressed as a relative error, was ≤15%.
Conclusion:
The elaborated HPLC method is specific, repeatable, reproducible, adequately accurate
and precise and fulfills the validation requirements for the bioanalytical method. The method was
successfully applied for analysis of atorvastatin and its o-hydroxy metabolite in plasma of patients
treated with the drug.
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Affiliation(s)
- Dagmara Sowińska
- Department of Physical Pharmacy and Pharmacokinetics, Poznan University of Medical Sciences, 6 Swiecickiego Street, 60-781 Poznan, Poland
| | - Alicja Pogorzelska
- Department of Physical Pharmacy and Pharmacokinetics, Poznan University of Medical Sciences, 6 Swiecickiego Street, 60-781 Poznan, Poland
| | - Marlena Rakicka
- Department of Physical Pharmacy and Pharmacokinetics, Poznan University of Medical Sciences, 6 Swiecickiego Street, 60-781 Poznan, Poland
| | - Justyna Sznura
- Department of Physical Pharmacy and Pharmacokinetics, Poznan University of Medical Sciences, 6 Swiecickiego Street, 60-781 Poznan, Poland
| | - Justyna Janowska
- Department of Physical Pharmacy and Pharmacokinetics, Poznan University of Medical Sciences, 6 Swiecickiego Street, 60-781 Poznan, Poland
| | - Patrycja Gorzycka
- Department of Physical Pharmacy and Pharmacokinetics, Poznan University of Medical Sciences, 6 Swiecickiego Street, 60-781 Poznan, Poland
| | - Mateusz Malak
- Department of Physical Pharmacy and Pharmacokinetics, Poznan University of Medical Sciences, 6 Swiecickiego Street, 60-781 Poznan, Poland
| | - Marta Karażniewicz-Łada
- Department of Physical Pharmacy and Pharmacokinetics, Poznan University of Medical Sciences, 6 Swiecickiego Street, 60-781 Poznan, Poland
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