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Favorable Pharmacok...
Favorable Pharmacokinetic Characteristics of Extended-Half-Life Recombinant Factor VIII BAY 94-9027 Enable Robust Individual Profiling Using a Population Pharmacokinetic Approach
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- Solms, Alexander (författare)
- Bayer Pharma AG
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- Iorio, Alfonso (författare)
- McMaster University
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- Ahsman, Maurice J. (författare)
- LAP&P Consultants BV
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- Vis, Peter (författare)
- LAP&P Consultants BV
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- Shah, Anita (författare)
- Bayer Corporation, USA
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- Berntorp, Erik (författare)
- Lund University,Lunds universitet,Klinisk koagulationsmedicin, Malmö,Forskargrupper vid Lunds universitet,Clinical Coagulation, Malmö,Lund University Research Groups,Skåne University Hospital
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- Garmann, Dirk (författare)
- Bayer Pharma AG
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(creator_code:org_t)
- 2019-11-21
- 2020
- Engelska 12 s.
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Ingår i: Clinical Pharmacokinetics. - : Springer Science and Business Media LLC. - 0312-5963 .- 1179-1926. ; 59:5, s. 605-616
- Relaterad länk:
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http://dx.doi.org/10... (free)
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https://link.springe...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
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- Background: Prophylaxis with factor VIII (FVIII) should be individualized based on patient characteristics, including FVIII pharmacokinetics. Population pharmacokinetic (popPK) modeling simplifies pharmacokinetic studies by obviating the need for multiple samples. Objective: The objective of this study was to characterize the pharmacokinetics and inter-individual variability (IIV) of BAY 94-9027 in relation to patient characteristics in support of a popPK-tailored approach, including identifying the optimal number and timing of pharmacokinetic samples. Methods: Pharmacokinetic samples from 198 males (aged 2‒62 years) with severe hemophilia A, enrolled in BAY 94-9027 clinical trials, were analyzed. Baseline age, height, weight, body mass index, lean body weight (LBW), von Willebrand factor (VWF) level, and race were evaluated. A popPK model was developed and used to simulate pharmacokinetic endpoints difficult to observe from measured FVIII levels, including time to maintain FVIII levels above 1, 3, and 5 IU/dL after different BAY 94-9027 doses. Results: A one-compartment model adequately described BAY 94-9027 pharmacokinetics. Clearance and central volume of distribution were significantly associated with LBW; clearance was inversely correlated with VWF. Due to the monophasic pharmacokinetics and well-understood IIV sources, identification of patient pharmacokinetics was achievable with sparse blood sampling. Median predicted time to maintain FVIII levels > 1 IU/dL in patients aged ≥ 12 years ranged from 120.1 to 127.2 h after single BAY 94-9027 doses of 45‒60 IU/kg. Conclusions: This analysis evaluated the pharmacokinetics of BAY 94-9027 and its sources of IIV. Using the model, determination of individual patient pharmacokinetics was possible with few FVIII samples, and a sparse sampling design to support pharmacokinetic-guided dosing was identified.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Farmaceutiska vetenskaper (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Pharmaceutical Sciences (hsv//eng)
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