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Lattanzi S, Chiesa V, Di Gennaro G, Ferlazzo E, Labate A, La Neve A, Meletti S, Di Bonaventura C. Brivaracetam use in clinical practice: a Delphi consensus on its role as first add-on therapy in focal epilepsy and beyond. Neurol Sci 2024; 45:4519-4527. [PMID: 38558319 PMCID: PMC11306259 DOI: 10.1007/s10072-024-07485-w] [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: 01/27/2024] [Accepted: 03/19/2024] [Indexed: 04/04/2024]
Abstract
BACKGROUND Antiseizure medications remain the cornerstone of treatment for epilepsy, although a proportion of individuals with the condition will continue to experience seizures despite appropriate therapy. Treatment choices for epilepsy are based on variables related to both the individual patient and the available medications. Brivaracetam is a third-generation agent antiseizure medication. METHODS We carried out a Delphi consensus exercise to define the role of brivaracetam in clinical practice and to provide guidance about its use as first add-on ASM and in selected clinical scenarios. A total of 15 consensus statements were drafted by an expert panel following review of the literature and all were approved in the first round of voting by panelists. The consensus indicated different clinical scenarios for which brivaracetam can be a good candidate for treatment, including first add-on use. RESULTS Overall, brivaracetam was considered to have many advantageous characteristics that render it a suitable option for patients with focal epilepsy, including a fast onset of action, favorable pharmacokinetic profile with few drug-drug interactions, broad-spectrum activity, and being well tolerated across a range of doses. Brivaracetam is also associated with sustained clinical response and good tolerability in the long term. CONCLUSIONS These characteristics also make it suitable as an early add-on for the elderly and for patients with post-stroke epilepsy or status epilepticus as highlighted by the present Delphi consensus.
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Affiliation(s)
- Simona Lattanzi
- Department of Experimental and Clinical Medicine, Neurological Clinic, Marche Polytechnic University, Via Conca 71, 60020, Ancona, Italy.
| | - Valentina Chiesa
- Epilepsy Center, Child Neurology Unit, ASST Santi Paolo Carlo, Milan, Italy
| | | | - Edoardo Ferlazzo
- Department of Medical and Surgical Sciences, Magna Græcia University of Catanzaro, Catanzaro, Italy
| | - Angelo Labate
- Neurophysiopathology and Movement Disorders Clinic, University of Messina, Messina, Italy
| | - Angela La Neve
- DiBraiN, University Hospital of Bari "A. Moro", Bari, Italy
| | - Stefano Meletti
- Department of Biomedical, Metabolic and Neural Science, University of Modena and Reggio Emilia, Modena, Italy
- Neurology and neurophysiology unit - AOU Modena, Modena, Italy
| | - Carlo Di Bonaventura
- Department of Human Neurosciences, Policlinico Umberto I, Sapienza University of Rome, Rome, Italy
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Klein P, Bourikas D. Narrative Review of Brivaracetam: Preclinical Profile and Clinical Benefits in the Treatment of Patients with Epilepsy. Adv Ther 2024; 41:2682-2699. [PMID: 38811492 PMCID: PMC11213745 DOI: 10.1007/s12325-024-02876-z] [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: 03/13/2024] [Accepted: 04/16/2024] [Indexed: 05/31/2024]
Abstract
One third of patients with epilepsy will continue to have uncontrolled seizures despite treatment with antiseizure medications (ASMs). There is therefore a need to develop novel ASMs. Brivaracetam (BRV) is an ASM that was developed in a major drug discovery program aimed at identifying selective, high-affinity synaptic vesicle protein 2A (SV2A) ligands, the target molecule of levetiracetam. BRV binds to SV2A with 15- to 30-fold higher affinity and greater selectivity than levetiracetam. BRV has broad-spectrum antiseizure activity in animal models of epilepsy, a favorable pharmacokinetic profile, few clinically relevant drug-drug interactions, and rapid brain penetration. BRV is available in oral and intravenous formulations and can be initiated at target dose without titration. Efficacy and safety of adjunctive BRV (50-200 mg/day) treatment of focal-onset seizures was demonstrated in three pivotal phase III trials (NCT00490035/NCT00464269/NCT01261325), including in patients who had previously failed levetiracetam. Efficacy and safety of adjunctive BRV were also demonstrated in adult Asian patients with focal-onset seizures (NCT03083665). In several open-label trials (NCT00150800/NCT00175916/NCT01339559), long-term safety and tolerability of adjunctive BRV was established, with efficacy maintained for up to 14 years, with high retention rates. Evidence from daily clinical practice highlights BRV effectiveness and tolerability in specific epilepsy patient populations with high unmet needs: the elderly (≥ 65 years of age), children (< 16 years of age), patients with cognitive impairment, patients with psychiatric comorbid conditions, and patients with acquired epilepsy of specific etiologies (post-stroke epilepsy/brain tumor related epilepsy/traumatic brain injury-related epilepsy). Here, we review the preclinical profile and clinical benefits of BRV from pivotal trials and recently published evidence from daily clinical practice.
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Affiliation(s)
- Pavel Klein
- Mid-Atlantic Epilepsy and Sleep Center, 6410 Rockledge Dr, Bethesda, MD, 20817, USA.
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Inoue Y, Tiamkao S, Zhou D, Cabral‐Lim L, Lim KS, Lim S, Tsai J, Moseley B, Wang L, Sun W, Hayakawa Y, Sasamoto H, Sano T, McClung C, Bass A. Efficacy, safety, and tolerability of adjunctive brivaracetam in adult Asian patients with uncontrolled focal-onset seizures: A phase III randomized, double-blind, placebo-controlled trial. Epilepsia Open 2024; 9:1007-1020. [PMID: 38576178 PMCID: PMC11145603 DOI: 10.1002/epi4.12929] [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: 11/29/2023] [Revised: 03/04/2024] [Accepted: 03/07/2024] [Indexed: 04/06/2024] Open
Abstract
OBJECTIVE Evaluate efficacy, safety, and tolerability of adjunctive brivaracetam (BRV) in adult Asian patients with focal-onset seizures (FOS). METHODS Phase III, randomized, double-blind, placebo-controlled study (EP0083; NCT03083665) evaluating BRV 50 mg/day and 200 mg/day in patients (≥16-80 years) with FOS with/without secondary generalization (focal to bilateral tonic-clonic seizures) despite current treatment with 1 or 2 concomitant antiseizure medications. Following an 8-week baseline, patients were randomized 1:1:1 to placebo, BRV 50 mg/day, or BRV 200 mg/day, and entered a 12-week treatment period. Efficacy outcomes: percent reduction over placebo in 28-day FOS frequency (primary); 50% responder rate in FOS frequency; median percent reduction in FOS frequency from baseline; seizure freedom during treatment period (secondary). Primary safety endpoints: incidences of treatment-emergent adverse events (TEAEs); TEAEs leading to discontinuation; serious TEAEs. RESULTS In this study, 448/449 randomized patients (mean age, 34.5 years; 53.8% female) received ≥1 dose of study medication (placebo/BRV 50 mg/BRV 200 mg/day: n = 149/151/148). Percent reduction over placebo in 28-day adjusted FOS frequency was 24.5% (p = 0.0005) and 33.4% (p < 0.0001) with BRV 50 mg/day and 200 mg/day, respectively, 50% responder rate was 19.0%, 41.1%, and 49.3% with placebo, BRV 50 mg/day, and BRV 200 mg/day, respectively (p < 0.0001 for both BRV groups vs. placebo). Median percent reduction in FOS frequency from baseline was 21.3%/38.9%/46.7% in patients on placebo/BRV 50 mg/BRV 200 mg/day, respectively. Overall, 0, 7 (4.6%), and 10 (6.8%) patients were classified as seizure-free during the treatment period on placebo, BRV 50 mg/day, and BRV 200 mg/day, respectively (p = 0.0146/p = 0.0017 for BRV 50 mg/200 mg/day vs. placebo, respectively). TEAE incidences were similar between patients on placebo (58.4%) and all patients receiving BRV (58.5%); TEAE incidences for BRV 50 mg/day and BRV 200 mg/day were 57.0% and 60.1%, respectively. Overall, 0.7% of patients on placebo and 2.0% of all patients on BRV reported serious TEAEs (incidences for BRV 50 mg/day and BRV 200 mg/day were 1.3% and 2.7%, respectively), 20.1% of patients on placebo and 33.1% of all patients on BRV reported drug-related TEAEs (incidences for BRV 50 mg/day and BRV 200 mg/day were 26.5% and 39.9%, respectively), and 4.7% of patients on placebo and 3.0% of all patients on BRV discontinued due to TEAEs (discontinuation incidences for BRV 50 mg/day and BRV 200 mg/day were 2.6% and 3.4%, respectively). SIGNIFICANCE Adjunctive BRV was efficacious and well tolerated in adult Asian patients with FOS. Efficacy and safety profiles were consistent with BRV studies in predominantly non-Asian populations. PLAIN LANGUAGE SUMMARY Brivaracetam is used to treat partial or focal seizures in people with epilepsy. Most studies with brivaracetam tablets have involved people from non-Asian racial backgrounds. In this study, 449 Asian adults with epilepsy took part. One third took 50 mg of brivaracetam, one third took 200 mg of brivaracetam, and one third took a placebo each day for 12 weeks. On average, those who took brivaracetam had fewer seizures than those given the placebo. Most of the side effects were mild and the number and type of side effects seen were as expected for this medication.
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Affiliation(s)
- Yushi Inoue
- NHO Shizuoka Institute of Epilepsy and Neurological DisordersShizuokaJapan
| | - Somsak Tiamkao
- Integrated Epilepsy Research GroupKhon Kaen University, Srinagarind HospitalKhon KaenThailand
| | - Dong Zhou
- West China Hospital of Sichuan UniversityChengduSichuanChina
| | - Leonor Cabral‐Lim
- Department of Neurosciences, College of Medicine, Philippine General HospitalUniversity of the Philippines Manila, The Health Sciences CenterManilaPhilippines
| | - Kheng Seang Lim
- Division of Neurology, Department of Medicine, Faculty of MedicineUniversiti MalayaKuala LumpurMalaysia
| | - Shih‐Hui Lim
- Singapore General HospitalSingapore CitySingapore
| | - Jing‐Jane Tsai
- Department of NeurologyNational Cheng Kung University HospitalTainanTaiwan
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Siddiqui F, Soomro BA, Badshah M, Rehman EU, Numan A, Ikram A, Khan MWA, Ali S, Hashim H, Salam JU, Akram A, Irfan Hashmat M, Iqbal S, Zeeshan Javed M, Iqbal SZ, Maqsood A, Khan A, Maheshwary N, Khan MA. Efficacy and Safety of Brivaracetam in Persons With Epilepsy in a Real-World Setting: A Prospective, Non-Interventional Study. Cureus 2023; 15:e50313. [PMID: 38205459 PMCID: PMC10777439 DOI: 10.7759/cureus.50313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/11/2023] [Indexed: 01/12/2024] Open
Abstract
BACKGROUND AND AIM Epilepsy stands out as one of the most prevalent neurological conditions. Brivaracetam (BRV) is a noteworthy antiseizure medication (ASM) distinguished by its pronounced and selective interaction with the synaptic vesicle protein 2A (SV2A) within the brain. Prior investigations, including regulatory trials, post-marketing assessments, and comparative meta-analyses, have consistently underscored BRV's equivalency in efficacy and superior tolerability when pitted against other antiseizure drugs. This study aimed to evaluate the effectiveness, safety, and acceptability of BRV in treating epileptic patients in the Pakistani population. METHODS This prospective observational study, conducted in Pakistan from February to December 2022, employed a non-probability consecutive sampling technique. This study included 368 adult patients diagnosed with epilepsy, with a focus on those aged 18 and above experiencing focal seizures. Demographic data, clinical history, seizure types, and epilepsy profiles were recorded. Patients were administered BRV (Brivera; manufactured by Helix Pharma Pvt Ltd., Sindh, Pakistan) monotherapy therapy under physician guidance and followed up for three months. The study assessed changes in seizure frequency, side effects, and drug resistance at baseline, 14th day, and 90th day. Safety aspects were monitored, including documenting any adverse effects associated with BRV therapy. RESULTS A total of 368 epileptic patients were included in this study, of which 287 (61.3%) were males and 181 (38.7%) were females. The mean age was 32.91±17.11 years. The mean number of seizures at the baseline visit was 5.74±6.21, at 14 days was 2.89±3.84 and at 90 days was 1.73±5.01 (p<0.001). Overall, a more than 50% reduction in seizure episodes was achieved in 178 (56.3%) patients at day 90, and less than 50% reduction in seizure episodes was achieved by 95 (26.8%) patients on Day 14, with a highly significant association between them (p<0.001). Among 316 patients, only 41 (4.4%) of all BRV-treated patients experienced adverse events; Of these 41 patients, 17 (41.7%) reported dizziness and 14(34.2%) reported behavioral issues. CONCLUSIONS Epileptic patients receiving BRV demonstrated a substantial reduction of greater than 50% seizure episodes at the end of follow-up visits. Moreover, BRV exhibited fewer adverse effects in individuals with epilepsy.
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Affiliation(s)
- Fowzia Siddiqui
- Neurology, The Aga Khan University Hospital (AKUH), Karachi, PAK
| | | | - Mazhar Badshah
- Neurology, Pakistan Institute of Medical Sciences, Islamabad, PAK
| | - Ehsan U Rehman
- Neurology, Akhtar Saeed Medical and Dental College, Islamabad, PAK
| | - Ahsan Numan
- Neurology, Mayo Hospital, King Edward Medical University, Lahore, PAK
| | - Amer Ikram
- Neurology, Doctors Hospital Lahore, Lahore, PAK
| | | | - Sajjad Ali
- Neurology, Dar ul Shifa Hospital Sialkot, Sialkot, PAK
| | | | - Jawwad-Us Salam
- Medicine/Neurology, Dow International Medical College, Dow University of Health Sciences, Karachi, PAK
| | | | | | - Shahid Iqbal
- Neurology, Rehman Medical Institute, Peshawar, PAK
| | | | - S Zafar Iqbal
- Neurology, Tahsil Head Quarter (TQH) Hospital Sadiqabad, Sadiqabad, PAK
| | - Atif Maqsood
- Neurology, Aziz Fatima Hospital, Faisalabad, PAK
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Abstract
PURPOSE OF REVIEW Epilepsy affects 70 million people worldwide and is a significant cause of morbidity and early mortality. The mainstay of therapy is oral medications. Epilepsy drug development is escalating, driven by continued drug resistance in up to a third of epilepsy patients. Treatment development now focuses on discovery of novel mechanisms of action and syndrome-specific therapies. RECENT FINDINGS Difficult-to-treat epilepsy related to conditions including tuberous sclerosis complex (TSC), Lennox Gastaut syndrome (LGS) and Dravet syndrome (DS) have been the target of recent developments. Disease-modifying therapy for epilepsy related to TSC with vigabatrin at onset of first electroencephalographic epileptiform changes, rather than after first clinical seizure, has demonstrated strongly positive seizure and developmental outcomes. Fenfluramine, approved for DS and, more recently, LGS, has robust data supporting efficacy, safety/tolerability, as well as mortality, quality of life and cognitive function. Rescue therapy has expanded to include better tolerated benzodiazepines in the form of nasal midazolam and valium. Cenobamate, a first-in-class inactivator of the persistent voltage-gated sodium channel and approved for adult partial onset epilepsy, has exceptional efficacy and tolerability and will be expanded to children and to generalized onset epilepsy in adults. SUMMARY The repertoire of available and developmental therapies for epilepsy is rapidly expanding, and now includes disease-modifying vigabatrin in TSC and agents with extraordinary efficacy, fenfluramine and cenobamate.
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Affiliation(s)
- Amanda W Pong
- Mid-Atlantic Epilepsy and Sleep Center, Mid-Atlantic Neurological Institute, Bethesda, Maryland, USA
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Brivaracetam as Early Add-On Treatment in Patients with Focal Seizures: A Retrospective, Multicenter, Real-World Study. Neurol Ther 2022; 11:1789-1804. [DOI: 10.1007/s40120-022-00402-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 08/24/2022] [Indexed: 10/14/2022] Open
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Lattanzi S, Ascoli M, Canafoglia L, Canevini MP, Casciato S, Cerulli Irelli E, Chiesa V, Dainese F, De Maria G, Didato G, Di Gennaro G, Falcicchio G, Fanella M, Gangitano M, La Neve A, Mecarelli O, Montalenti E, Morano A, Piazza F, Pizzanelli C, Pulitano P, Ranzato F, Rosati E, Tassi L, Di Bonaventura C, Alicino A, Assenza G, Avorio F, Badioni V, Banfi P, Bartolini E, Manfredi Basili L, Belcastro V, Beretta S, Berto I, Biggi M, Billo G, Boero G, Bonanni P, Bongiorno J, Brigo F, Caggia E, Cagnetti C, Calvello C, Cesnik E, Chianale G, Ciampanelli D, Ciuffini R, Cocito D, Colella D, Contento M, Costa C, Cumbo E, D'Aniello A, Deleo F, DiFrancesco JC, Di Giacomo R, Di Liberto A, Domina E, Donato F, Dono F, Durante V, Elia M, Estraneo A, Evangelista G, Teresa Faedda M, Failli Y, Fallica E, Fattouch J, Ferrari A, Ferreri F, Fisco G, Fonti D, Fortunato F, Foschi N, Francavilla T, Galli R, Gasparini S, Gazzina S, Teresa Giallonardo A, Sean Giorgi F, Giuliano L, Habetswallner F, Izzi F, Kassabian B, Kiferle L, Labate A, Luisi C, Magliani M, Maira G, Mari L, Marino D, Mascia A, Mazzeo A, Meletti S, Milano C, Nilo A, Orlando B, Paladin F, Grazia Pascarella M, Pastori C, Pauletto G, Peretti A, Perri G, Pezzella M, Piccioli M, Pignatta P, Pilolli N, Pisani F, Rosa Pisani L, Placidi F, Pollicino P, Porcella V, Puligheddu M, Quadri S, Paolo Quarato P, Quintas R, Renna R, Rum A, Michele Salamone E, Savastano E, Sessa M, Stokelj D, Tartara E, Tombini M, Tumminelli G, Elisabetta Vaudano A, Ventura M, Viganò I, Viglietta E, Vignoli A, Villani F, Zambrelli E, Zummo L. Sustained seizure freedom with adjunctive brivaracetam in patients with focal‐onset seizures. Epilepsia 2022; 63:e42-e50. [PMID: 35278335 PMCID: PMC9311068 DOI: 10.1111/epi.17223] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 03/06/2022] [Accepted: 03/09/2022] [Indexed: 11/27/2022]
Affiliation(s)
- Simona Lattanzi
- Neurological Clinic Department of Experimental and Clinical Medicine Marche Polytechnic University Ancona Italy
| | - Michele Ascoli
- Department of Medical and Surgical Sciences Magna Græcia University of Catanzaro Catanzaro Italy
| | - Laura Canafoglia
- Department of Epileptology Fondazione IRCCS Istituto Neurologico Carlo Besta Milan Italy
| | - Maria Paola Canevini
- Epilepsy Center Child Neuropsychiatry Unit AAST Santi Paolo Carlo Milan Italy
- Department of Health Sciences Università degli Studi Milan Italy
| | | | | | - Valentina Chiesa
- Epilepsy Center Child Neuropsychiatry Unit AAST Santi Paolo Carlo Milan Italy
| | | | - Giovanni De Maria
- Clinical Neurophysiology Unit, Epilepsy Center Spedali Civili Brescia Italy
| | - Giuseppe Didato
- Epilepsy Unit Fondazione IRCCS Istituto Neurologico "Carlo Besta" Milan Italy
| | | | - Giovanni Falcicchio
- Department of Basic Medical Sciences Neurosciences and Sense Organs‐ University Hospital of Bari “A. Moro”
| | - Martina Fanella
- Department of Human Neurosciences Policlinico Umberto I Sapienza University of Rome Italy
| | - Massimo Gangitano
- Department of Biomedicine Neuroscience, and advanced Diagnostic (BIND) University of Palermo Palermo Italy
| | - Angela La Neve
- Department of Basic Medical Sciences Neurosciences and Sense Organs‐ University Hospital of Bari “A. Moro”
| | - Oriano Mecarelli
- Department of Human Neurosciences Policlinico Umberto I Sapienza University of Rome Italy
| | - Elisa Montalenti
- Epilepsy Center AOU Città della Salute e della Scienza di Torino Turin Italy
| | - Alessandra Morano
- Department of Human Neurosciences Policlinico Umberto I Sapienza University of Rome Italy
| | - Federico Piazza
- Rita Levi Montalcini Department of Neurosciences University of Turin Turin Italy
| | - Chiara Pizzanelli
- Department of Clinical and Experimental Medicine Neurological Clinic University of Pisa Pisa, Pisa Italy
| | - Patrizia Pulitano
- Department of Human Neurosciences Policlinico Umberto I Sapienza University of Rome Italy
| | | | - Eleonora Rosati
- Department Neurology 2 Careggi University Hospital Florence Italy
| | - Laura Tassi
- "C. Munari" Epilepsy Surgery Centre Niguarda Hospital Milan Italy
| | - Carlo Di Bonaventura
- Department of Human Neurosciences Policlinico Umberto I Sapienza University of Rome Italy
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Moseley BD, Dimova S, Elmoufti S, Laloyaux C, Asadi-Pooya AA. Long-term efficacy and tolerability of adjunctive brivaracetam in adults with focal to bilateral tonic-clonic (secondary generalized) seizures: Post hoc pooled analysis. Epilepsy Res 2021; 176:106694. [PMID: 34218211 DOI: 10.1016/j.eplepsyres.2021.106694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 05/26/2021] [Accepted: 06/19/2021] [Indexed: 11/26/2022]
Abstract
This post hoc analysis was conducted to evaluate the efficacy, tolerability, and health-related quality of life during long-term adjunctive brivaracetam (BRV) treatment in adult patients with focal to bilateral tonic-clonic seizures (FBTCS). Patients (≥ 16 years) were included in this post hoc analysis if they were randomized to BRV or placebo in double-blind, placebo-controlled (N01252 [NCT00490035], N01253 [NCT00464269], N01358 [NCT01261325]; core) trials, and received adjunctive BRV in the corresponding long-term follow-up (N01125 [NCT00175916], N01199 [NCT00150800], N01379 [NCT01339559]) trials, and reported FBTCS during the 8-week prospective baseline (core trial). Efficacy (concomitant levetiracetam excluded) and tolerability (concomitant levetiracetam included) were assessed from the first day of BRV in patients who initiated BRV at 50-200 mg/day. Two hundred and eighty-four patients reported FBTCS during baseline (core trials) and were included in the Efficacy Set. Patients (mean age of 37.0 years; 51.8% male; mean epilepsy duration of 22.4 years; median baseline frequency of 2.8 FBTCS per 28 days) received BRV for a median treatment duration of 2.5 years (range< 0.1-11.3) at a median modal dose of 150 mg/day. BRV was discontinued by 175 (61.6%) patients, most commonly (≥ 10% of patients) due to adverse event (18.3%), lack of efficacy (18.3%), and consent withdrawn (11.6%); the median time to discontinuation of BRV due to any reason was 358.5 days. The Kaplan-Meier (KM)-estimated retention on BRV at 1, 3, and 5 years, were 69.3%, 48.2%, and 37.3%, respectively. The KM-estimated proportion of patients not discontinuing BRV due to lack of efficacy or adverse event were 80.0%, 63.9%, and 57.2% at 1, 3, and 5 years, respectively. Overall, the median percentage reduction in FBTCS frequency from baseline was 76.2%, and the 50% and 75% responder rates for FBTCS were 68.7% and 50.7%, respectively, which were sustained over time across completer cohorts. Sustained 50%, 75%, and 100% response in FBTCS from day 1 of adjunctive BRV treatment during the entire first year was estimated for 32.5%, 21.1%, and 15.0% of patients, respectively (KM analysis), and showed maintenance or improvement in the response to BRV over time. For patients with ≥ 1 year of BRV exposure, 51.3% were free from FBTCS for ≥ 1 year during any time of the treatment period, and 22.8% of patients did not report FBTCS during the first year from the first day of treatment. Clinically meaningful improvements in total Patient Weighted Quality of Life in Epilepsy Inventory-Form 31 (QOLIE-31-P) score were reported by 43.6% and 46.4% of patients after 1 and 2 years of treatment, respectively. The largest improvements in the QOLIE-31-P score, with > 50% of patients reporting a clinically meaningful improvement, were observed in the seizure worry and daily activities/social functioning subscales after 1 and 2 years of BRV treatment. Overall, 278/313 (88.8%; Safety Set) patients reported at least one treatment-emergent adverse event (TEAE), 170 (54.3%) had a drug-related TEAE, 88 (28.1%) had a serious TEAE, and 55 (17.6%) discontinued BRV due to a TEAE. Overall, long-term adjunctive BRV was generally well tolerated and reduced the frequency of FBTCS in adults, with 22.8% of patients (who completed ≥ 1 year of treatment) not reporting any FBTCS during the first year from the first day of BRV treatment.
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Affiliation(s)
- Brian D Moseley
- Department of Neurology & Rehabilitation Medicine, University of Cincinnati, 260 Stetson Street, Suite 2300, Cincinnati, OH, 45267-0525, USA.
| | - Svetlana Dimova
- UCB Pharma, Allée de la Recherche 60, B-1070, Brussels, Belgium.
| | - Sami Elmoufti
- UCB Pharma, 8010 Arco Corporate Dr, Raleigh, NC, 27617, USA.
| | - Cédric Laloyaux
- UCB Pharma, Allée de la Recherche 60, B-1070, Brussels, Belgium.
| | - Ali A Asadi-Pooya
- Shiraz Epilepsy Research Center, Shiraz University of Medical Sciences, Zand St, Shiraz, Iran; Jefferson Comprehensive Epilepsy Center, Department of Neurology, Thomas Jefferson University, 909 Walnut St #3, Philadelphia, PA, 19107, USA.
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Toledo M, Brandt C, Quarato PP, Schulz AL, Cleveland JM, Wagener G, Klein P. Long-term safety, efficacy, and quality of life during adjunctive brivaracetam treatment in patients with uncontrolled epilepsy: An open-label follow-up trial. Epilepsy Behav 2021; 118:107897. [PMID: 33780735 DOI: 10.1016/j.yebeh.2021.107897] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 02/15/2021] [Accepted: 02/24/2021] [Indexed: 10/21/2022]
Abstract
OBJECTIVES The primary objective of this long-term follow-up (LTFU) trial was to evaluate the long-term safety and tolerability of brivaracetam (BRV). The secondary objective was to evaluate the maintenance of efficacy of BRV (including quality of life) over time. METHODS This open-label, multicenter, flexible-dose trial (N01379 [NCT01339559]) was conducted in adults (≥16 years) with focal or generalized-onset seizures, who had participated in a placebo (PBO)-controlled trial of adjunctive BRV (N01258: NCT01405508 or N01358: NCT01261325). RESULTS Seven hundred and sixty-six patients received BRV in this LTFU trial (753 had focal seizures and 13 had generalized-onset seizures). Kaplan-Meier-estimated retention was 71.9% at 12 months, and 53.7% at 36 months. Treatment-emergent adverse events (TEAEs) were reported by 643 (83.9%) patients, most commonly headache (104 [13.6%] patients) and dizziness (100 [13.1%] patients). Two hundred and fifty-seven (33.6%) patients had drug-related TEAEs, most commonly somnolence (49 [6.4%] patients) and dizziness (41 [5.4%] patients). Permanent discontinuation of BRV due to TEAEs occurred in 91 (11.9%) patients. Patients with focal seizures had a median percentage reduction in focal seizure frequency of 52.0% and 51.7% were 50% responders (sustained over time); 26.0% were seizurefree for 6 months, and 17.9% were seizurefree for 12 months. 42.4% of patients at 12 months and 46.8% at 24 months had clinically meaningful improvements in Patient Weighted Quality of Life in Epilepsy Questionnaire 31 total score. CONCLUSIONS In this select group of patients who entered the LTFU trial, BRV was generally safe and well tolerated. Results indicate the long-term efficacy of BRV in patients with focal seizures.
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Affiliation(s)
- Manuel Toledo
- Hospital Universitari Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
| | | | - Pier Paolo Quarato
- IRCCS Istituto Neurologico, Centro per la Chirurgia dell'Epilessia, Pozzilli, Italy.
| | | | | | | | - Pavel Klein
- Mid-Atlantic Epilepsy and Sleep Center, Bethesda, MD, USA.
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Klein P, Laloyaux C, Elmoufti S, Gasalla T, Martin MS. Time course of 75%-100% efficacy response of adjunctive brivaracetam. Acta Neurol Scand 2020; 142:175-180. [PMID: 32432339 PMCID: PMC7422720 DOI: 10.1111/ane.13287] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Revised: 05/05/2020] [Accepted: 05/17/2020] [Indexed: 12/01/2022]
Abstract
BACKGROUND Time to sustained seizure frequency reduction can provide clinically meaningful epilepsy outcomes. AIMS OF THE STUDY To examine the time course of brivaracetam (BRV) efficacy in adults with focal seizures and focal to bilateral tonic-clonic seizures (FBTCS). METHODS Post hoc analysis of data pooled from three randomized controlled trials of oral adjunctive BRV in adults with epilepsy. Patients with focal epilepsy and a subpopulation with FBTCS receiving BRV 50, 100, or 200 mg/d (initiated without up-titration) or placebo for 12 weeks were analyzed for time to sustained ≥75%, ≥90%, and 100% seizure reduction without interruption from first day until trial ends. RESULTS Evaluation included 1160 patients with focal seizures, including 352 patients with FBTCS. Sustained ≥75%, ≥90%, and 100% response in focal seizures was higher from day 1 for BRV 100 and 200 mg/d vs placebo (P < .01). Sustained ≥75% and 100% FBTCS reduction from day 1 was higher for BRV 100 and 200-mg/d groups vs placebo (P < .01). CONCLUSIONS The majority of patients achieving 75%-100% sustained seizure frequency reduction (all focal seizure types and the subpopulation with FBTCS) with oral BRV (100 or 200 mg/d) achieved this response on the first-treatment day.
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Affiliation(s)
- Pavel Klein
- Mid‐Atlantic Epilepsy and Sleep Center Bethesda MD USA
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