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Xie H, Zheng Y, Wang C, Song S, Dai Y, Huang X, Liu M, Wu X. Managing delayed or missed pregabalin doses in patients with focal epilepsy: a Monte Carlo simulation study. Int J Clin Pharm 2024; 46:150-157. [PMID: 37991662 DOI: 10.1007/s11096-023-01657-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Accepted: 09/28/2023] [Indexed: 11/23/2023]
Abstract
BACKGROUND Delayed or missed doses are inevitable in epilepsy pharmacotherapy. The current remedial measures recommended by the United States Food and Drug Administration (FDA) for non-adherence are generic and lack clinical evidence. AIM To assess remedial strategies for delayed or missed pregabalin doses in patients with epilepsy using Monte Carlo simulations. METHOD Monte Carlo simulations were performed using a published population pharmacokinetic model for pregabalin. The applicability of five proposed remedial regimens as well as FDA recommendations was evaluated by simulating various poor adherence scenarios in eight populations, including those with renal dysfunction. RESULTS All proposed remedial strategies were associated with delay duration and renal function. When delays are relatively short, an immediate regular dose is advised. The cut-off time points for taking the regular dose as a remedial regimen were 1, 2, 4, and 12 h for patients with mild renal impairment and normal renal function, moderate renal impairment, severe renal impairment, and end-stage renal disease, respectively. However, when delay aligns closely with a dosing interval, a regular dose combined with a partial dose proves effective. Generally, supplementing 1.3-fold the regular dose at the next scheduled time adequately compensates for the missed dose. CONCLUSION Model-based simulations provided quantitative evidence for the effectiveness and feasibility of remedial strategies for missed or delayed pregabalin doses.
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Affiliation(s)
- Helin Xie
- Department of Pharmacy, Fujian Medical University Union Hospital, Gulou District, 29 Xinquan Road, Fuzhou, 350001, Fujian, China
| | - You Zheng
- Department of Pharmacy, Fujian Medical University Union Hospital, Gulou District, 29 Xinquan Road, Fuzhou, 350001, Fujian, China
- School of Pharmacy, Fujian Medical University, 88 Jiaotong Road, Fuzhou, 350000, Fujian, China
| | - Chenyu Wang
- Department of Pharmacy, Shanghai Chest Hospital, Shanghai Jiao Tong University, 241 West Huaihai Road, Shanghai, 200000, China
| | - Shiwei Song
- Department of Neurosurgery, Fujian Medical University Union Hospital, 29 Xinquan Road, Gulou District, Fuzhou, 350001, Fujian, China
| | - Yihai Dai
- Department of Neurosurgery, Fujian Medical University Union Hospital, 29 Xinquan Road, Gulou District, Fuzhou, 350001, Fujian, China
| | - Xian Huang
- Department of Neurosurgery, Fujian Medical University Union Hospital, 29 Xinquan Road, Gulou District, Fuzhou, 350001, Fujian, China
| | - Maobai Liu
- Department of Pharmacy, Fujian Medical University Union Hospital, Gulou District, 29 Xinquan Road, Fuzhou, 350001, Fujian, China
| | - Xuemei Wu
- Department of Pharmacy, Fujian Medical University Union Hospital, Gulou District, 29 Xinquan Road, Fuzhou, 350001, Fujian, China.
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Evaluating Therapeutic Equivalence of Generic and Original Levetiracetam in Patients with Epilepsy: A Retrospective Study. Neurol Int 2022; 14:271-283. [PMID: 35324578 PMCID: PMC8953522 DOI: 10.3390/neurolint14010022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Revised: 03/02/2022] [Accepted: 03/11/2022] [Indexed: 02/01/2023] Open
Abstract
The brand interchangeability of antiepileptic drugs (AEDs) is a topic of debate, especially regarding their therapeutic equivalence. This study evaluates the efficacy and tolerability of generic levetiracetam compared to the brand-name equivalent in a routine clinical setting. We conducted a retrospective study, examining patients with stable seizure frequency who received generic levetiracetam after the brand-name drug. During the six-month substitution period, changes in seizure frequency, hospitalization due to seizure exacerbation, adverse events, composite outcomes related to adjusting the AED dosage, and switching back to original levetiracetam were analyzed. Seventy-five patients were enrolled; the majority (85.3%) had focal onset seizures, and almost half (49.3%) had refractory epilepsy. Six months after the substitution, the mean seizure frequency per month was not significantly different (3.15 ± 14.47 vs. 2.77 ± 11.41; p = 0.970). In patients with controlled seizures before the change, the seizure frequency increased significantly (0.56 ± 1.83 vs. 0.03 ± 0.16; p = 0.012). Adverse events occurred in six patients. We have observed recurrent seizures or adverse events from 14 days after the transition. The original drug return rates due to recurrent seizures and adverse events were 5.3% and 1.3%, respectively. Generic levetiracetam might not show therapeutic equivalence to the original molecule, especially in patients adequately controlled by the brand-name drug.
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Yang C, Peng Y, Zhang L, Zhao L. Safety and Tolerability of Lacosamide in Patients With Epilepsy: A Systematic Review and Meta-Analysis. Front Pharmacol 2021; 12:694381. [PMID: 34616294 PMCID: PMC8488108 DOI: 10.3389/fphar.2021.694381] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 08/23/2021] [Indexed: 01/03/2023] Open
Abstract
Background: As a third-generation antiseizure medication (ASM), lacosamide (LCM) is recommended worldwide for patients with epilepsy. We aimed to provide more conclusive evidence for the safety and tolerability of LCM in patients with epilepsy. Methods: A systematic search was performed on MEDLINE, Embase, Cochrane Library, CBM, CNKI, IDB, VIP Database, and Wanfang Database from inception to 2021 March, and all studies assessing the safety of LCM were included. A meta-analysis was performed for safety data of LCM. Results: Eighty-three studies involving 12268 populations (11 randomized clinical trials (RCTs), 16 cohort studies, 53 case series, and 3 case reports) were included in our study. Meta-analysis of the total incidence of adverse events (AEs) of LCM was 38.7% [95% CI (35.1%, 45.8%); n=75 studies]. Incidence of withdrawal due to AEs was 10.8% [95% CI (9.1%, 12.6%); n=56 studies], and incidence of serious adverse events (SAEs) was 6.5% [95% CI (4.0%, 8.9%); n=13 studies]. Most AEs were in the nervous system and digestive system. The most common AEs were sedation (15.8%), dizziness (15.7%), fatigue (9.4%), and nausea/vomiting (9.3%). For children, the total incidence of AEs of LCM was 32.8% [95% CI (21.6%, 44.0%); n=16 studies], and the most common AEs were dizziness (8.6%), nausea/vomiting (8.6%), and somnolence (6.8%). Conclusion: Lacosamide is generally safe and well tolerated in patients with epilepsy. Common AEs were sedation, dizziness, and fatigue. It is necessary to pay more attention to the prevention and management of these AEs and conduct more large-scale and high-quality studies to update safety data.
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Affiliation(s)
- Chunsong Yang
- Department of Pharmacy, Evidence-Based Pharmacy Center, West China Second Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
| | - Yuxuan Peng
- West China School of Pharmacy, Sichuan University, Chengdu, China
| | - Lingli Zhang
- Department of Pharmacy, Evidence-Based Pharmacy Center, West China Second Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
| | - Li Zhao
- Department of Health Policy and Management, West China School of Public Health/West China Fourth Hospital, Sichuan University, Chengdu, China
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Kwong PPK, Chan EYK, Cheung EYW, Fong SYY, Nip W, Cheung HHK, Yip IPL, Chong KY, Pao RSY, Tam KL, Tang MH, Chan SKC, Mak KY. Consensus statements on the clinical uses of pregabalin for Hong Kong. Asia Pac Psychiatry 2020; 12:e12403. [PMID: 32830438 DOI: 10.1111/appy.12403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 06/15/2020] [Indexed: 11/29/2022]
Abstract
To facilitate the understanding of pregabalin and optimize its clinical usage in Hong Kong, an expert panel (11 psychiatrists, one family physician and one anesthesiologist) experienced in treating anxiety and somatic symptoms was invited to establish a set of consensus statements based on several discussion areas. A non-systematic literature search for relevant articles was conducted. The panelists addressed the discussion areas by sharing their clinical experience and available literature in a couple of meetings. At the last meeting, consensus statements derived from the proceedings were discussed and finalized. A total of 11 statements were ultimately accepted by panel voting based on their practicability of recommendation in Hong Kong. These statements are aimed to act as a practical reference for local clinicians when they consider prescribing pregabalin in different clinical situations.
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Affiliation(s)
- Patrick Po-Keung Kwong
- Asian Association of Neuropsychopharmacology (AANP), Anxiety Hong Kong Study Group Panelists
| | - Eric Yan-Kwong Chan
- Asian Association of Neuropsychopharmacology (AANP), Anxiety Hong Kong Study Group Panelists
| | - Eric Yat-Wo Cheung
- Asian Association of Neuropsychopharmacology (AANP), Anxiety Hong Kong Study Group Panelists
| | - Samson Yat-Yuk Fong
- Asian Association of Neuropsychopharmacology (AANP), Anxiety Hong Kong Study Group Panelists
| | - Wai Nip
- Asian Association of Neuropsychopharmacology (AANP), Anxiety Hong Kong Study Group Panelists
| | - Henry Hon-Kee Cheung
- Asian Association of Neuropsychopharmacology (AANP), Anxiety Hong Kong Study Group Panelists
| | - Isaac Pui-Lam Yip
- Asian Association of Neuropsychopharmacology (AANP), Anxiety Hong Kong Study Group Panelists
| | - King-Yee Chong
- Asian Association of Neuropsychopharmacology (AANP), Anxiety Hong Kong Study Group Panelists
| | - Ronnie Sze-Yuan Pao
- Asian Association of Neuropsychopharmacology (AANP), Anxiety Hong Kong Study Group Panelists
| | - Ka-Lok Tam
- Asian Association of Neuropsychopharmacology (AANP), Anxiety Hong Kong Study Group Panelists
| | - Man-Ho Tang
- Asian Association of Neuropsychopharmacology (AANP), Anxiety Hong Kong Study Group Panelists
| | - Simon Kin-Cheong Chan
- Asian Association of Neuropsychopharmacology (AANP), Anxiety Hong Kong Study Group Panelists
| | - Ki-Yan Mak
- Asian Association of Neuropsychopharmacology (AANP), Anxiety Hong Kong Study Group Panelists
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Wang Z, Zhang Y, Guo W, Hu XM, Gao X, Lu L. Reporting specifications regarding epilepsy practice guidelines based on the RIGHT reporting checklist: an analysis. BMJ Open 2019; 9:e029589. [PMID: 31796475 PMCID: PMC6924717 DOI: 10.1136/bmjopen-2019-029589] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Revised: 08/02/2019] [Accepted: 09/23/2019] [Indexed: 11/11/2022] Open
Abstract
OBJECTIVE Clinical guidelines are designed to optimise patient care and provide efficient approaches for therapy. Epilepsy is a chronic brain disorder that continues to experience a considerable treatment gap due to non-standard recommendations. We assessed the reporting quality of clinical practice guidelines on epilepsy over the past 5 years to generate a reporting specification for this study. SETTING Seven databases were searched in May 2018 focusing on the period from 2013 to 2018. These included Medline, EMBASE, PubMed, Cumulative Index to Nursing and Allied Health Literature, China National Knowledge Infrastructure, Wanfang and Chinese Science and Technology Journal Database (VIP). Reporting quality of epilepsy guidelines was assessed by two independent authors using the Reporting Items for practice Guidelines in HealThcare (RIGHT) approach. Spearman's correlation was used to assess inter-rater reliability. PARTICIPANTS Participants with epilepsy or seizure, not limited by age, gender, course of disease or cause of epilepsy, were included. INTERVENTIONS There were no limitations with regard to intervention. PRIMARY AND SECONDARY OUTCOME MEASURES The outcome was the ability of the RIGHT tool to measure reporting quality. RESULTS Twelve relevant guidelines were included in this study. The reporting quality was not high in any of the included guidelines. The highest reporting quality included a 'yes' proportion of 77.1%, whereas the worst included a corresponding proportion of 37.1%. Overall evaluation results showed that 16.7% of the included guidelines were of high quality, 75% were of medium quality and 8.3% were of low quality. The correlation between the two estimators was credible (ρ>0.7). CONCLUSIONS Appraisal of these guidelines using the RIGHT tool revealed that the quality of reporting varied among guidelines. Items that exhibited low quality in most included guidelines were healthcare questions, rationale/explanation for recommendations, quality assurance, funding source(s) and role(s) of the funder, and limitations of the guideline. Thus, these aspects should receive greater attention in future guideline reporting.
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Affiliation(s)
- Zhijie Wang
- Medical College of Acupuncture and Rehabilitation, Guangzhou University of Chinese Medicine, Guangzhou, China
- Primary Care, Population Sciences, and Medical Education, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Yu Zhang
- Medical College of Acupuncture and Rehabilitation, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Wei Guo
- Oncology Department, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xiaoyang Mio Hu
- Primary Care, Population Sciences, and Medical Education, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Xiao Gao
- Geriatric Ward, The Second Hospital Affiliated of Heilongjiang University of Chinese Medicine (Southern Branch), Harbin, China
| | - Liming Lu
- Medical College of Acupuncture and Rehabilitation, Guangzhou University of Chinese Medicine, Guangzhou, China
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Yi ZM, -, Wen C, Cai T, Xu L, Zhong XL, Zhan SY, Zhai SD. Levetiracetam for epilepsy: an evidence map of efficacy, safety and economic profiles. Neuropsychiatr Dis Treat 2018; 15:1-19. [PMID: 30587993 PMCID: PMC6301299 DOI: 10.2147/ndt.s181886] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
OBJECTIVE To evaluate the efficacy, safety and economics of levetiracetam (LEV) for epilepsy. MATERIALS AND METHODS PubMed, Scopus, the Cochrane Library, OpenGrey.eu and ClinicalTrials.gov were searched for systematic reviews (SRs), meta-analyses, randomized controlled trials (RCTs), observational studies, case reports and economic studies published from January 2007 to April 2018. We used a bubble plot to graphically display information of included studies and conducted meta-analyses to quantitatively synthesize the evidence. RESULTS A total of 14,803 records were obtained. We included 30 SRs/meta-analyses, 34 RCTs, 18 observational studies, 58 case reports and 2 economic studies after the screening process. The included SRs enrolled patients with pediatric epilepsy, epilepsy in pregnancy, focal epilepsy, generalized epilepsy and refractory focal epilepsy. Meta-analysis of the included RCTs indicated that LEV was as effective as carbamazepine (CBZ; treatment for 6 months: 58.9% vs 64.8%, OR=0.76, 95% CI: 0.50-1.16; 12 months: 54.9% vs 55.5%, OR=1.24, 95% CI: 0.79-1.93), oxcarbazepine (57.7% vs 59.8%, OR=1.34, 95% CI: 0.34-5.23), phenobarbital (50.0% vs 50.9%, OR=1.20, 95% CI: 0.51-2.82) and lamotrigine (LTG; 61.5% vs 57.7%, OR=1.22, 95% CI: 0.90-1.66). SRs and observational studies indicated a low malformation rate and intrauterine death rate for pregnant women, as well as low risk of cognitive side effects. But psychiatric and behavioral side effects could not be ruled out. LEV decreased discontinuation due to adverse events compared with CBZ (OR=0.52, 95% CI: 0.41-0.65), while no difference was found when LEV was compared with placebo and LTG. Two cost-effectiveness evaluations for refractory epilepsy with decision-tree model showed US$ 76.18 per seizure-free day gained in Canada and US$ 44 per seizure-free day gained in Korea. CONCLUSION LEV is as effective as CBZ, oxcarbazepine, phenobarbital and LTG and has an advantage for pregnant women and in cognitive functions. Limited evidence supports its cost-effectiveness. REGISTERED NUMBER PROSPERO (No CRD 42017069367).
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Affiliation(s)
- Zhan-Miao Yi
- Department of Pharmacy, Peking University Third Hospital, Beijing, China,
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- Department of Pharmacy, Peking University Third Hospital, Beijing, China,
| | - Cheng Wen
- Department of Pharmacy, Peking University Third Hospital, Beijing, China,
- Department of Pharmacy Administration and Clinical Pharmacy, School of Pharmaceutical Science, Peking University Health Science Center, Beijing, China
| | - Ting Cai
- Department of Epidemiology and Bio-statistics, School of Public Health, Peking University Health Science Center, Beijing, China
| | - Lu Xu
- Department of Epidemiology and Bio-statistics, School of Public Health, Peking University Health Science Center, Beijing, China
| | - Xu-Li Zhong
- Department of Pharmacy, Children's Hospital Affiliated to Capital Institute of Pediatrics, Beijing, China
| | - Si-Yan Zhan
- Department of Epidemiology and Bio-statistics, School of Public Health, Peking University Health Science Center, Beijing, China
- Center for Clinical Epidemiology, Peking University Third Hospital, Beijing, China
| | - Suo-Di Zhai
- Department of Pharmacy, Peking University Third Hospital, Beijing, China,
- Institute for Drug Evaluation, Peking University Health Science Center, Beijing, China,
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Lapmag A, Lertsinudom S, Chaiyakam A, Sawanyawisuth K, Tiamkao S. Clinical outcomes of intravenous levetiracetam treatment in patients with renal impairment. Neurol Int 2018; 10:7469. [PMID: 30344963 PMCID: PMC6176471 DOI: 10.4081/ni.2018.7469] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2017] [Revised: 01/25/2018] [Accepted: 03/09/2018] [Indexed: 11/23/2022] Open
Abstract
Intravenous levetiracetam has been approved for use as an antiepileptic drug, as well as in cases of status epilepticus. There are few reports that detail the clinical data and outcomes associated with this antiepileptic drug, particularly in patients with renal impairment. This was a retrospective analytical study conducted at Khon Kaen University's Srinagarind Hospital in Thailand. The study period was between January 1, 2010 and December 31, 2014. The inclusion criteria were that patents were over 15 years old, had renal impairment, and had received intravenous levetiracetam treatment. The main clinical outcomes were seizure control and mortality. Clinical outcomes were compared between those with and without status epilepticus. Mortality of patients with status epilepticus were compared in terms of seizure control and order of intravenous levetiracetam treatment. During the study period, there were 247 patients who met the study criteria. The average age of the patients was 58 years with nearly equal sex distribution. Of those, 90 patients (36.4%) had GRFs of less than 15 mL/min/1.73 m2 and 60 patients (24.3%) received intravenous LEVE due to status epilepticus. The seizure control rates in the status epilepticus and non-status epilepticus groups were 36.7% and 88.7%, respectively (P<0.001). The mortality rate did not differ significantly between the two groups (33.3% vs 27.8%; P=0.418). There was no significant overall difference in mortality rate between seizure-controlled and seizure-uncontrolled patients in the status epilepticus group. In the convulsive status epilepticus group, variations in terms of treatment order of intravenous levetiracetam and seizure control resulted in no significant difference in mortality rates (P=0.311). No major side effects were detected in any patients after the intravenous levetiracetam treatment. In conclusion, intravenous levetiracetam treatment was effective and safe in patients with renal impairment.
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Affiliation(s)
- Anyamanee Lapmag
- Cinical Pharmacy Division, Faculty of Pharmaceutical Sciences, Khon Kaen University.,The College of Pharmacotherapy of Thailand, Pharmacy Council, Bangkok
| | - Sunee Lertsinudom
- Cinical Pharmacy Division, Faculty of Pharmaceutical Sciences, Khon Kaen University.,The College of Pharmacotherapy of Thailand, Pharmacy Council, Bangkok.,Integrated Epilepsy Research Group, Khon Kaen University
| | - Aporanee Chaiyakam
- Cinical Pharmacy Division, Faculty of Pharmaceutical Sciences, Khon Kaen University.,The College of Pharmacotherapy of Thailand, Pharmacy Council, Bangkok
| | | | - Somsak Tiamkao
- Integrated Epilepsy Research Group, Khon Kaen University.,Department of Medicine, Faculty of Medicine, Khon Kaen University, Thailand
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Tsai JJ, Wu T, Leung H, Desudchit T, Tiamkao S, Lim KS, Dash A. Perampanel, an AMPA receptor antagonist: From clinical research to practice in clinical settings. Acta Neurol Scand 2018; 137:378-391. [PMID: 29214650 DOI: 10.1111/ane.12879] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/13/2017] [Indexed: 12/21/2022]
Abstract
Epileptic seizures are refractory to treatment in approximately one-third of patients despite the recent introduction of many newer antiepileptic drugs (AEDs). Development of novel AEDs therefore remains a high priority. Perampanel is a first-in-class non-competitive selective AMPA receptor antagonist with a unique mechanism of action. Clinical efficacy and safety of perampanel as adjunctive treatment for focal seizures with/without secondary generalization (±SG) and primary generalized tonic-clonic (PGTC) seizures have been established in five phase 3 randomized controlled trials (RCTs), and a long-term extension study, and perampanel is approved as monotherapy for focal seizures ±SG in the USA. In patients with focal seizures ±SG, add-on perampanel resulted in median percent reduction in seizure frequency 23.3%-34.5% and ≥50% responder rate 28.5%-37.6%; in PGTC seizures, these results were 76.5% and 64.2%, respectively. Efficacy among adolescents (reduction in seizure frequency 34.8%-35.6%; ≥50% responder rate 40.9%-45.0%) and elderly people (reduction in seizure frequency 12.5%-16.9%; ≥50% responder rate 22.2%-42.9%) is similar to those in adults, and results remain comparable between Asian (reduction in seizure frequency 17.3%-38.0%) and global populations. Perampanel has been extensively studied in real-world clinical practice, with similar efficacy and safety results to the RCTs (≥50% responder rate 12.8%-75.0%; adverse events of somnolence/sedation, dizziness, ataxia, and behavioral changes). Real-world observational studies suggest that perampanel tolerability can be improved by slow titration (2 mg every 2-4 weeks), and bedtime administration can mitigate somnolence and dizziness. Counseling about the potential for behavioral changes and close monitoring are recommended.
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Affiliation(s)
- J.-J. Tsai
- Department of Neurology; National Cheng Kung University Hospital and School of Medicine; National Cheng Kung University; Tainan Taiwan
| | - T. Wu
- Department of Neurology; Chang Gung Memorial Hospital; Chang Gung University; Taoyuan City Taiwan
| | - H. Leung
- Department of Medicine and Therapeutics; Faculty of Medicine; Prince of Wales Hospital; Hong Kong Hong Kong
| | - T. Desudchit
- Department of Paediatrics; King Chulalongkorn Memorial Hospital; Bangkok Thailand
| | - S. Tiamkao
- Integrated Epilepsy Research Group; Department of Medicine; Faculty of Medicine; Khon Kaen University; Khon Kaen Thailand
| | - K.-S. Lim
- Division of Neurology; Department of Medicine; Faculty of Medicine; University of Malaya; Kuala Lumpur Malaysia
| | - A. Dash
- Eisai Singapore Pte. Ltd.; Singapore
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