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Meng XX, Nan GJ, Hu H, He JY, Li YZ, Yang GD. Effects of vitamin C on the pharmacokinetics and pharmacodynamics of nimodipine in rats. Biomed Chromatogr 2024; 38:e5827. [PMID: 38287211 DOI: 10.1002/bmc.5827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 11/27/2023] [Accepted: 12/27/2023] [Indexed: 01/31/2024]
Abstract
In recent years, researchers have shown a growing interest in the interactions between different pharmaceutical agents. An intriguing instance lies in the possible interaction between nimodipine and vitamin C. To investigate the pharmacokinetic and pharmacodynamic effects of vitamin C on nimodipine in rats, rats were randomly divided into a nimodipine only group and a combination group (nimodipine + vitamin C). The two groups were given intragastric administration and nimodipine blood concentrations were determined using high-performance liquid chromatography-tandem mass spectrum at different time points. Blood pressure and heart rate were measured via carotid artery cannulation. Pharmacokinetic differences were observed between the nimodipine only group and the combination group at the same dose. Compared with the nimodipine only group, the combination group's main pharmacokinetic parameters of peak concentration and area under the curve increased significantly, and the difference was statistically significant (p < 0.05); furthermore, the combination group exhibited a significant reduction in average blood pressure, while no significant effects on heart rate were observed. Vitamin C did not affect the activity of CYP450 in rat liver. The pharmacokinetic characteristics and pharmacodynamics of nimodipine were changed by vitamin C administration in rats.
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Affiliation(s)
- Xian-Xin Meng
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Guan-Jun Nan
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Hao Hu
- School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Jian-Yu He
- School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Yun-Zhe Li
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Guang-de Yang
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, Shaanxi, China
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Kerschbaumer J, Freyschlag CF, Petr O, Adage T, Breitenbach J J, Wessels L, Wolf S, Hecht N, Gempt J, Wostrack M, Gmeiner M, Gollwitzer M, Stefanits H, Bendszus M M, Gruber A, Meyer B, Vajkoczy P, Thomé C. A randomized, single ascending dose safety, tolerability and pharmacokinetics study of NicaPlant® in aneurysmal subarachnoid hemorrhage patients undergoing clipping. BRAIN & SPINE 2023; 3:102673. [PMID: 38021019 PMCID: PMC10668089 DOI: 10.1016/j.bas.2023.102673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 09/15/2023] [Accepted: 09/17/2023] [Indexed: 12/01/2023]
Abstract
Introduction Aneurysmal subarachnoid hemorrhage (aSAH) is associated with high morbidity and mortality. Post-hemorrhagic vasospasm with neurological deterioration is a major concern in this context. NicaPlant®, a modified release formulation of the calcium channel blocker nicardipine, has shown vasodilator efficacy preclinically and a similar formulation known as NPRI has shown anti-vasospasm activity in aSAH patients under compassionate use. Research question The study aimed to assess pharmacokinetics and pharmacodynamics of NicaPlant® pellets to prevent vasospasm after clip ligation in aSAH. Material and methods In this multicenter, controlled, randomized, dose escalation trial we assessed the safety and tolerability of NicaPlant®. aSAH patients treated by clipping were randomized to receive up to 13 NicaPlant® implants, similarly to the dose of NPRIs previous used, or standard of care treatment. Results Ten patients across four dose groups were treated with NicaPlant® (3-13 implants) while four patients received standard of care. 45 non-serious and 13 serious adverse events were reported, 4 non-serious adverse events and 5 serious adverse events assessed a probable or possible causal relationship to the investigational medical product. Across the NicaPlant® groups there was 1 case of moderate vasospasm, while in the standard of care group there were 2 cases of severe vasospasm. Discussion and conclusion The placement of NicaPlant® during clip ligation of a ruptured cerebral aneurysm raised no safety concern. The dose of 10 NicaPlant® implants was selected for further clinical studies.
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Affiliation(s)
| | | | - Ondra Petr
- Department of Neurosurgery, Medical University Innsbruck, Innsbruck, Austria
| | | | | | - Lars Wessels
- Department of Neurosurgery, Charité Berlin, Berlin, Germany
| | - Stefan Wolf
- Department of Neurosurgery, Charité Berlin, Berlin, Germany
| | - Nils Hecht
- Department of Neurosurgery, Charité Berlin, Berlin, Germany
| | - Jens Gempt
- Department of Neurosurgery, Klinikum Rechts der Isar, School of Medicine, Technical University Munich, Munich, Germany
| | - Maria Wostrack
- Department of Neurosurgery, Klinikum Rechts der Isar, School of Medicine, Technical University Munich, Munich, Germany
| | - Matthias Gmeiner
- Department of Neurosurgery, Kepler University Hospital and Johannes Kepler University, Linz, Austria
| | - Maria Gollwitzer
- Department of Neurosurgery, Kepler University Hospital and Johannes Kepler University, Linz, Austria
| | - Harald Stefanits
- Department of Neurosurgery, Kepler University Hospital and Johannes Kepler University, Linz, Austria
| | - Martin Bendszus M
- Department of Neuroradiology, University of Heidelberg, Heidelberg, Germany
| | - Andreas Gruber
- Department of Neurosurgery, Kepler University Hospital and Johannes Kepler University, Linz, Austria
| | - Bernhard Meyer
- Department of Neurosurgery, Klinikum Rechts der Isar, School of Medicine, Technical University Munich, Munich, Germany
| | | | - Claudius Thomé
- Department of Neurosurgery, Medical University Innsbruck, Innsbruck, Austria
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