Effect of Gastric Fluid Volume on the In Vitro Dissolution and In Vivo Absorption of BCS Class II Drugs: a Case Study with Nifedipine.
Effect of Gastric Fluid Volume on the In Vitro Dissolution and In Vivo Absorption of BCS Class II Drugs: a Case Study with Nifedipine.
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胃液体积对BCS II类药物的体外溶解和体内吸收的影响:硝苯地平的案例研究。
DOI:
10.1208/s12248-016-9918-x
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发表时间:
2016-07
期刊:
影响因子:
--
通讯作者:
Foster DR
中科院分区:
文献类型:
--
作者:
Nader AM;Quinney SK;Fadda HM;Foster DR
Nifedipine is a BCS Class II drug used for treatment of hypertension and preterm labor. Large inter-patient variability in nifedipine absorption results in variable exposure among different patients. We conducted in vitro dissolution studies to compare nifedipine dissolution from immediate release (IR) capsules with different volumes of dissolution media. Results from dissolution studies were used to design a cross-over study in healthy volunteers to evaluate the effect of co-administered water volume with nifedipine 10 mg IR capsules on nifedipine pharmacokinetics, especially absorption (Cmax, tmax, and AUC0–6). Dissolution studies demonstrated that larger gastric fluid volumes result in enhanced nifedipine dissolution from 10 mg IR cosolvent capsules (73% vs. 17% in 200 and 100 mL simulated gastric fluid, respectively, at 30 min). The pharmacokinetic crossover study in healthy volunteers (N=6) did not show a significant effect of the water volume administered with the capsule (50 vs. 250 ml) on Cmax, tmax, or AUC0–6 of orally administered nifedipine IR capsules (10 mg). However, administration of large water volumes resulted in lower variability in nifedipine Cmax (47% vs.70% for 250 mL and 50 mL, respectively). Administration of large water volumes with nifedipine 10 mg IR cosolvent capsules reduces inter-individual variability in plasma exposure. Evaluation of similar effects in other BCS Class-II drugs is recommended.
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DOI:
10.1136/bmj.e6226
发表时间:
2012-10-09
期刊:
BMJ (Clinical research ed.)
影响因子:
--
作者:
Haas DM;Caldwell DM;Kirkpatrick P;McIntosh JJ;Welton NJ
通讯作者:
Welton NJ
影响因子:
3.3
作者:
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通讯作者:
Shah, Vinod P.
影响因子:
7.6
作者:
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通讯作者:
Weitschies, W
影响因子:
3.8
作者:
Thelen, Kirstin;Jantratid, Ekarat;Willmann, Stefan
通讯作者:
Willmann, Stefan
影响因子:
3.9
作者:
Patki, KC;von Moltke, LL;Greenblatt, DJ
通讯作者:
Greenblatt, DJ