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Peron A, Picot C, Jurek L, Nourredine M, Ripoche E, Ajiji P, Cucherat M, Cottin J. Neurodevelopmental outcomes after prenatal exposure to lamotrigine monotherapy in women with epilepsy: a systematic review and meta-analysis. BMC Pregnancy Childbirth 2024; 24:103. [PMID: 38308208 PMCID: PMC10835851 DOI: 10.1186/s12884-023-06242-9] [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: 02/11/2023] [Accepted: 12/31/2023] [Indexed: 02/04/2024] Open
Abstract
BACKGROUND Lamotrigine has become one of the most commonly prescribed antiseizure medications (ASM) in epileptic women during pregnancy and therefore requires regular updates regarding its safety. The aim of this study was to estimate the association between in utero exposure to lamotrigine monotherapy and the occurrence of neurodevelopmental outcomes. METHODS All comparative studies assessing the occurrence of neurodevelopmental outcomes after epilepsy-indicated lamotrigine monotherapy exposure during pregnancy were searched. First, references were identified through a snowballing approach, then, through electronic databases (Medline and Embase) from 2015 to June 2022. One investigator evaluated study eligibility and extracted data and a second independent investigator reviewed the meta-analysis (MA). A systematic review and random-effects model approach were performed using a collaborative WEB-based meta-analysis platform (metaPreg.org) with a registered protocol (osf.io/u4gva). RESULTS Overall, 18 studies were included. For outcomes reported by at least 4 studies, the pooled odds ratios and 95% confidence interval obtained with the number of exposed (N1) and unexposed children (N0) included were: neurodevelopmental disorders as a whole 0.84 [0.66;1.06] (N1 = 5,271; N0 = 22,230); language disorders or delay 1.16 [0.67;2.00] (N1 = 313; N0 = 506); diagnosis or risk of ASD 0.97 [0.61;1.53] (N1 = at least 5,262; N0 = 33,313); diagnosis or risk of ADHD 1.14 [0.75;1.72] (N1 = at least 113; N0 = 11,530) and psychomotor developmental disorders or delay 2.68 [1.29-5.56] (N1 = 163; N0 = 220). The MA of cognitive outcomes included less than 4 studies and retrieved a significant association for infants exposed to lamotrigine younger than 3 years old but not in the older age groups. CONCLUSION Prenatal exposure to lamotrigine monotherapy is not found to be statistically associated with neurodevelopmental disorders as a whole, language disorders or delay, diagnosis or risk of ASD and diagnosis or risk of ADHD. However, the MA found an increased risk of psychomotor developmental disorders or delay and cognitive developmental delay in less than 3 years old children. Nevertheless, these findings were based exclusively on observational studies presenting biases and on a limited number of included children. More studies should assess neurodevelopmental outcomes in children prenatally exposed to lamotrigine.
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Affiliation(s)
- Audrey Peron
- Service Hospitalo-Universitaire de Pharmacotoxicologie de Lyon, Hospices Civils de Lyon, Bât. A-162, avenue Lacassagne, Lyon Cedex 03, 69424, France
| | - Cyndie Picot
- Service Hospitalo-Universitaire de Pharmacotoxicologie de Lyon, Hospices Civils de Lyon, Bât. A-162, avenue Lacassagne, Lyon Cedex 03, 69424, France
| | - Lucie Jurek
- Pôle de psychiatrie de l'Enfant et l'Adolescent, Centre Hospitalier Le Vinatier, Bron, France
| | - Mikaïl Nourredine
- Service Hospitalo-Universitaire de Pharmacotoxicologie de Lyon, Hospices Civils de Lyon, Bât. A-162, avenue Lacassagne, Lyon Cedex 03, 69424, France
- Service Universitaire d'Addictologie de Lyon, Centre Hospitalier Le Vinatier, Bron, France
| | - Emmanuelle Ripoche
- Adverse Events and Incidents Department-Surveillance Division, Agence nationale de sécurité du médicament et des produits de santé (ANSM), Saint Denis, France
| | - Priscilla Ajiji
- Adverse Events and Incidents Department-Surveillance Division, Agence nationale de sécurité du médicament et des produits de santé (ANSM), Saint Denis, France
- Faculté de Santé, Université Paris-Est Créteil, Créteil, EA 7379, France
| | - Michel Cucherat
- Service Hospitalo-Universitaire de Pharmacotoxicologie de Lyon, Hospices Civils de Lyon, Bât. A-162, avenue Lacassagne, Lyon Cedex 03, 69424, France
| | - Judith Cottin
- Service Hospitalo-Universitaire de Pharmacotoxicologie de Lyon, Hospices Civils de Lyon, Bât. A-162, avenue Lacassagne, Lyon Cedex 03, 69424, France.
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Ogunjimi L, Alabi A, Aderinola A, Ogunjimi O, Oladunjoye Y, Kasali A, Kasumu E, Oyenuga I, Akinbodu S, Onipede M, Dele O, Adeyemo S, Osalusi B. Predictors and associated factors with adverse drug reaction in people with epilepsy. Epilepsy Behav 2024; 150:109566. [PMID: 38071827 DOI: 10.1016/j.yebeh.2023.109566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 11/24/2023] [Accepted: 11/26/2023] [Indexed: 01/14/2024]
Abstract
OBJECTIVES There is a need for early identification and intervention of Adverse Drug Reaction (ADR) to alleviate the unacceptably growing burden, morbidity, and mortality associated with People With Epilepsy (PWE). This study is aimed at identifying associated factors and predictors of ADR among PWE. METHODS It is an interviewer-administered questionnaire-based study consisting of 940 consenting participants aged 16 years and above attending epilepsy clinics for 5 years with diagnosis confirmed by International League against Epilepsy (ILAE) criteria and supported by Electroencephalography (EEG). Twenty-one-item Liverpool Adverse Effect Profile (LAEP) and 8-item Morinsky Medication Adherence Scale (MMAS) were used to assess ADR and adherence respectively. RESULTS The highest reported ADR in PWE were nervousness (34.3%), aggression (33.6%), and weight gain (32.3%). Specifically, 20.1% of the participants complained of memory problems. On the other hand, ADR associated with skin, mouth/gum and hair loss was 9.3%, 8.9%, and 7.2% respectively, and these were the lowest reported ADRs. Using the MMAS, 545(90.2%), 28(4.6%), and 31(5.1%) of PWE in this study were classified as having high, medium, and low adherence, respectively. Duration of Anti-Seizure Medication (ASM) use and duration of epilepsy were the major determinants of ADR in PWE on the regression model. CONCLUSION Duration of ASM use and duration of epilepsy are the major determinants of ADR in PWE. Effective strategies to identify and reduce ADR should be incorporated into the management of PWE by Health Care Providers (HCPs) to improve their quality of life.
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Affiliation(s)
- Luqman Ogunjimi
- Department of Pharmacology and Therapeutics, Obafemi Awolowo College of Health Sciences, Olabisi Onabanjo University, Remo Campus, Sagamu, Ogun state, Nigeria.
| | - Akinyinka Alabi
- Department of Pharmacology and Therapeutics, Obafemi Awolowo College of Health Sciences, Olabisi Onabanjo University, Remo Campus, Sagamu, Ogun state, Nigeria
| | - Aderonke Aderinola
- Department of Pharmacology and Therapeutics, Obafemi Awolowo College of Health Sciences, Olabisi Onabanjo University, Remo Campus, Sagamu, Ogun state, Nigeria
| | - Olabisi Ogunjimi
- Department of Pharmacy, University College Hospital, Ibadan, Oyo state, Nigeria
| | - Yusuf Oladunjoye
- Department of Pharmacology and Therapeutics, Obafemi Awolowo College of Health Sciences, Olabisi Onabanjo University, Remo Campus, Sagamu, Ogun state, Nigeria
| | - Adeola Kasali
- Department of Pharmacology and Therapeutics, Obafemi Awolowo College of Health Sciences, Olabisi Onabanjo University, Remo Campus, Sagamu, Ogun state, Nigeria
| | - Emmanuel Kasumu
- Department of Pharmacology and Therapeutics, Obafemi Awolowo College of Health Sciences, Olabisi Onabanjo University, Remo Campus, Sagamu, Ogun state, Nigeria
| | - Ibironke Oyenuga
- Department of Pharmacology and Therapeutics, Obafemi Awolowo College of Health Sciences, Olabisi Onabanjo University, Remo Campus, Sagamu, Ogun state, Nigeria
| | - Shittabey Akinbodu
- Department of Physiology, Obafemi Awolowo College of Health Sciences, Olabisi Onabanjo University, Remo Campus, Sagamu, Ogun state, Nigeria
| | - Modupeoluwa Onipede
- Department of Pharmacology and Therapeutics, Obafemi Awolowo College of Health Sciences, Olabisi Onabanjo University, Remo Campus, Sagamu, Ogun state, Nigeria
| | - Oludolapo Dele
- Department of Pharmacology and Therapeutics, Obafemi Awolowo College of Health Sciences, Olabisi Onabanjo University, Remo Campus, Sagamu, Ogun state, Nigeria
| | - Stella Adeyemo
- Department of Pharmacology and Therapeutics, Obafemi Awolowo College of Health Sciences, Olabisi Onabanjo University, Remo Campus, Sagamu, Ogun state, Nigeria
| | - Bamidele Osalusi
- Department of Medicine, Obafemi Awolowo College of Health Sciences, Olabisi Onabanjo University, Remo Campus, Sagamu, Ogun state, Nigeria
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Abd-Allah WH, El-Mohsen Anwar MA, Mohammed ER, El Moghazy SM. Anticonvulsant Classes and Possible Mechanism of Actions. ACS Chem Neurosci 2023; 14:4076-4092. [PMID: 37948544 DOI: 10.1021/acschemneuro.3c00613] [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] [Indexed: 11/12/2023] Open
Abstract
Epilepsy is considered one of the most common neurological disorders worldwide; it needs long-term or life-long treatment. Despite the presence of several novel antiepileptic drugs, approximately 30% patients still suffer from drug-resistant epilepsy. Subsequently, searching for new anticonvulsants with lower toxicity and better efficacy is still in paramount demand. Using target-based studies in the discovery of novel antiepileptics is uncommon owing to the insufficient information on the molecular pathway of epilepsy and complex mode of action for most of known antiepileptic drugs. In this review, we investigated the properties of anticonvulsants, types of epileptic seizures, and mechanism of action for anticonvulsants.
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Affiliation(s)
- Walaa Hamada Abd-Allah
- Pharmaceutical Chemistry Department, Collage of Pharmaceutical Science and Drug Manufacturing, Misr University for Science and Technology, P.O. 77, 12568 6th of October City, Giza, Egypt
| | - Mostafa Abd El-Mohsen Anwar
- Pharmaceutical Chemistry Department, Collage of Pharmaceutical Science and Drug Manufacturing, Misr University for Science and Technology, P.O. 77, 12568 6th of October City, Giza, Egypt
| | - Eman R Mohammed
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Cairo University, 11562 Cairo, Egypt
| | - Samir M El Moghazy
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Cairo University, 11562 Cairo, Egypt
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Lawal OD, Meador KJ, Hume AL, Wen X. Utilization of Antiseizure Medications in Women of Childbearing Age With Epilepsy and Nonepilepsy Indications: A Retrospective Cohort Study. Neurology 2023; 101:e1083-e1096. [PMID: 37407266 PMCID: PMC10491435 DOI: 10.1212/wnl.0000000000207580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 05/10/2023] [Indexed: 07/07/2023] Open
Abstract
BACKGROUND AND OBJECTIVES Antiseizure medications (ASMs) are among the most commonly prescribed teratogenic drugs in women of childbearing age. Limited data exist on utilization patterns across different indications for therapy and for the newer-generation ASMs in this population. Thus, we assessed the pattern of ASM use in women of childbearing age with epilepsy and nonepilepsy indications (pain and psychiatric disorders). METHODS We conducted a retrospective analysis of deidentified administrative data submitted to the Optum Clinformatics database. Eligible participants included women aged 12-50 years who filled ASMs between year 2011 and 2017. Participants were followed from date of index prescription filled to study end or insurance disenrollment, whichever came first. For the overall cohort and potential therapy indications, we assessed the type and frequency of ASMs filled; proportion of participants on monotherapy, polytherapy, or treatment switching; and duration of continuous use. Trends were characterized using annual percent change from study start to study end. RESULTS Our analysis included 465,131 participants who filled 603,916 distinct ASM prescriptions. At baseline, most of the participants had chronic pain (51.0%) and psychiatric disorders (32.7%), with epilepsy the least common (0.9%). The most frequently dispensed were diazepam (24.3%), lorazepam (20.1%), gabapentin (17.4%), clonazepam (12.7%), topiramate (11.3%), and lamotrigine (4.6%). Significant linear increase in trends were observed with gabapentin (annual percent change [95% CI]: 8.4 [7.3-9.4]; p < 0.001) and levetiracetam (3.4 [0.7-6.2]; p = 0.022) and decreasing trends for diazepam (-3.5 [-2.4 to 4.5]; p < 0.001) and clonazepam (-3.4 [-2.3 to 4.5]; p = 0.001). No significant change in trend was observed with valproate (-0.4 [-2.7 to 1.9]; p = 0.651), while nonlinear changes in trends were observed with lorazepam, topiramate, lamotrigine, and pregabalin. DISCUSSION Decreasing trends were observed with older ASMs in the overall cohort and across the potential indications for therapy. Conversely, increasing trends were seen with the newer ASMs. Considering the risk of teratogenicity associated with the newer medications largely unknown, counseling and education in addition to a careful consideration of the benefits vs potential risks should remain pivotal when prescribing ASMs for women of childbearing age.
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Affiliation(s)
- Oluwadolapo D Lawal
- From the Department of Pharmacy Practice (O.D.L., A.L.H., X.W.), College of Pharmacy, University of Rhode Island, Kingstown; and Department of Neurology & Neurological Sciences (K.J.M.), Stanford University School of Medicine, CA
| | - Kimford J Meador
- From the Department of Pharmacy Practice (O.D.L., A.L.H., X.W.), College of Pharmacy, University of Rhode Island, Kingstown; and Department of Neurology & Neurological Sciences (K.J.M.), Stanford University School of Medicine, CA
| | - Anne L Hume
- From the Department of Pharmacy Practice (O.D.L., A.L.H., X.W.), College of Pharmacy, University of Rhode Island, Kingstown; and Department of Neurology & Neurological Sciences (K.J.M.), Stanford University School of Medicine, CA
| | - Xuerong Wen
- From the Department of Pharmacy Practice (O.D.L., A.L.H., X.W.), College of Pharmacy, University of Rhode Island, Kingstown; and Department of Neurology & Neurological Sciences (K.J.M.), Stanford University School of Medicine, CA.
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Bromley R, Adab N, Bluett-Duncan M, Clayton-Smith J, Christensen J, Edwards K, Greenhalgh J, Hill RA, Jackson CF, Khanom S, McGinty RN, Tudur Smith C, Pulman J, Marson AG. Monotherapy treatment of epilepsy in pregnancy: congenital malformation outcomes in the child. Cochrane Database Syst Rev 2023; 8:CD010224. [PMID: 37647086 PMCID: PMC10463554 DOI: 10.1002/14651858.cd010224.pub3] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
BACKGROUND Prenatal exposure to certain anti-seizure medications (ASMs) is associated with an increased risk of major congenital malformations (MCM). The majority of women with epilepsy continue taking ASMs throughout pregnancy and, therefore, information on the potential risks associated with ASM treatment is required. OBJECTIVES To assess the effects of prenatal exposure to ASMs on the prevalence of MCM in the child. SEARCH METHODS For the latest update of this review, we searched the following databases on 17 February 2022: Cochrane Register of Studies (CRS Web), MEDLINE (Ovid, 1946 to February 16, 2022), SCOPUS (1823 onwards), and ClinicalTrials.gov, WHO International Clinical Trials Registry Platform (ICTRP). No language restrictions were imposed. SELECTION CRITERIA We included prospective cohort controlled studies, cohort studies set within pregnancy registries, randomised controlled trials and epidemiological studies using routine health record data. Participants were women with epilepsy taking ASMs; the two control groups were women without epilepsy and untreated women with epilepsy. DATA COLLECTION AND ANALYSIS Five authors independently selected studies for inclusion. Eight authors completed data extraction and/or risk of bias assessments. The primary outcome was the presence of an MCM. Secondary outcomes included specific types of MCM. Where meta-analysis was not possible, we reviewed included studies narratively. MAIN RESULTS From 12,296 abstracts, we reviewed 283 full-text publications which identified 49 studies with 128 publications between them. Data from ASM-exposed pregnancies were more numerous for prospective cohort studies (n = 17,963), than data currently available for epidemiological health record studies (n = 7913). The MCM risk for children of women without epilepsy was 2.1% (95% CI 1.5 to 3.0) in cohort studies and 3.3% (95% CI 1.5 to 7.1) in health record studies. The known risk associated with sodium valproate exposure was clear across comparisons with a pooled prevalence of 9.8% (95% CI 8.1 to 11.9) from cohort data and 9.7% (95% CI 7.1 to 13.4) from routine health record studies. This was elevated across almost all comparisons to other monotherapy ASMs, with the absolute risk differences ranging from 5% to 9%. Multiple studies found that the MCM risk is dose-dependent. Children exposed to carbamazepine had an increased MCM prevalence in both cohort studies (4.7%, 95% CI 3.7 to 5.9) and routine health record studies (4.0%, 95% CI 2.9 to 5.4) which was significantly higher than that for the children born to women without epilepsy for both cohort (RR 2.30, 95% CI 1.47 to 3.59) and routine health record studies (RR 1.14, 95% CI 0.80 to 1.64); with similar significant results in comparison to the children of women with untreated epilepsy for both cohort studies (RR 1.44, 95% CI 1.05 to 1.96) and routine health record studies (RR 1.42, 95% CI 1.10 to 1.83). For phenobarbital exposure, the prevalence was 6.3% (95% CI 4.8 to 8.3) and 8.8% (95% CI 0.0 to 9277.0) from cohort and routine health record data, respectively. This increased risk was significant in comparison to the children of women without epilepsy (RR 3.22, 95% CI 1.84 to 5.65) and those born to women with untreated epilepsy (RR 1.64, 95% CI 0.94 to 2.83) in cohort studies; data from routine health record studies was limited. For phenytoin exposure, the prevalence of MCM was elevated for cohort study data (5.4%, 95% CI 3.6 to 8.1) and routine health record data (6.8%, 95% CI 0.1 to 701.2). The prevalence of MCM was higher for phenytoin-exposed children in comparison to children of women without epilepsy (RR 3.81, 95% CI 1.91 to 7.57) and the children of women with untreated epilepsy (RR 2.01. 95% CI 1.29 to 3.12); there were no data from routine health record studies. Pooled data from cohort studies indicated a significantly increased MCM risk for children exposed to lamotrigine in comparison to children born to women without epilepsy (RR 1.99, 95% CI 1.16 to 3.39); with a risk difference (RD) indicating a 1% increased risk of MCM (RD 0.01. 95% CI 0.00 to 0.03). This was not replicated in the comparison to the children of women with untreated epilepsy (RR 1.04, 95% CI 0.66 to 1.63), which contained the largest group of lamotrigine-exposed children (> 2700). Further, a non-significant difference was also found both in comparison to the children of women without epilepsy (RR 1.19, 95% CI 0.86 to 1.64) and children born to women with untreated epilepsy (RR 1.00, 95% CI 0.79 to 1.28) from routine data studies. For levetiracetam exposure, pooled data provided similar risk ratios to women without epilepsy in cohort (RR 2.20, 95% CI 0.98 to 4.93) and routine health record studies (RR 0.67, 95% CI 0.17 to 2.66). This was supported by the pooled results from both cohort (RR 0.71, 95% CI 0.39 to 1.28) and routine health record studies (RR 0.82, 95% CI 0.39 to 1.71) when comparisons were made to the offspring of women with untreated epilepsy. For topiramate, the prevalence of MCM was 3.9% (95% CI 2.3 to 6.5) from cohort study data and 4.1% (0.0 to 27,050.1) from routine health record studies. Risk ratios were significantly higher for children exposed to topiramate in comparison to the children of women without epilepsy in cohort studies (RR 4.07, 95% CI 1.64 to 10.14) but not in a smaller comparison to the children of women with untreated epilepsy (RR 1.37, 95% CI 0.57 to 3.27); few data are currently available from routine health record studies. Exposure in utero to topiramate was also associated with significantly higher RRs in comparison to other ASMs for oro-facial clefts. Data for all other ASMs were extremely limited. Given the observational designs, all studies were at high risk of certain biases, but the biases observed across primary data collection studies and secondary use of routine health records were different and were, in part, complementary. Biases were balanced across the ASMs investigated, and it is unlikely that the differential results observed across the ASMs are solely explained by these biases. AUTHORS' CONCLUSIONS Exposure in the womb to certain ASMs was associated with an increased risk of certain MCMs which, for many, is dose-dependent.
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Affiliation(s)
- Rebecca Bromley
- Division of Neuroscience, University of Manchester, Manchester, UK
- Royal Manchester Children's Hospital, Manchester, UK
| | - Naghme Adab
- Department of Neurology, A5 Corridor, Walsgrave Hospital, University Hospitals Coventry and Warwickshire NHS Trust, Coventry, UK
| | - Matt Bluett-Duncan
- Institute of Human Development, University of Manchester, Manchester, UK
| | - Jill Clayton-Smith
- Institute of Human Development, University of Manchester, Manchester, UK
| | - Jakob Christensen
- Department of Neurology, Aarhus University Hospital, Aarhus, Denmark
| | - Katherine Edwards
- Liverpool Reviews and Implementation Group, University of Liverpool, Liverpool, UK
| | - Janette Greenhalgh
- Liverpool Reviews and Implementation Group, University of Liverpool, Liverpool, UK
| | - Ruaraidh A Hill
- Liverpool Reviews and Implementation Group, Department of Health Data Science, University of Liverpool, Liverpool, UK
| | - Cerian F Jackson
- Department of Molecular and Clinical Pharmacology, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Sonia Khanom
- Institute of Human Development, University of Manchester, Manchester, UK
| | - Ronan N McGinty
- Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, Oxford, UK
| | - Catrin Tudur Smith
- Department of Health Data Science, University of Liverpool, Liverpool, UK
| | - Jennifer Pulman
- Department of Molecular and Clinical Pharmacology, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Anthony G Marson
- Department of Pharmacology and Therapeutics, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, UK
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Tesiye MR, Gol M, Fadardi MR, Kani SNM, Costa AM, Ghasemi-Kasman M, Biagini G. Therapeutic Potential of Mesenchymal Stem Cells in the Treatment of Epilepsy and Their Interaction with Antiseizure Medications. Cells 2022; 11:cells11244129. [PMID: 36552892 PMCID: PMC9777461 DOI: 10.3390/cells11244129] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 12/11/2022] [Accepted: 12/15/2022] [Indexed: 12/24/2022] Open
Abstract
Epilepsy is a life-threatening neurological disease that affects approximately 70 million people worldwide. Although the vast majority of patients may be successfully managed with currently used antiseizure medication (ASM), the search for alternative therapies is still necessary due to pharmacoresistance in about 30% of patients with epilepsy. Here, we review the effects of ASMs on stem cell treatment when they could be, as expected, co-administered. Indeed, it has been reported that ASMs produce significant effects on the differentiation and determination of stem cell fate. In addition, we discuss more recent findings on mesenchymal stem cells (MSCs) in pre-clinical and clinical investigations. In this regard, their ability to differentiate into various cell types, reach damaged tissues and produce and release biologically active molecules with immunomodulatory/anti-inflammatory and regenerative properties make them a high-potential therapeutic tool to address neuroinflammation in different neurological disorders, including epilepsy. Overall, the characteristics of MSCs to be genetically engineered, in order to replace dysfunctional elements with the aim of restoring normal tissue functioning, suggested that these cells could be good candidates for the treatment of epilepsy refractory to ASMs. Further research is required to understand the potential of stem cell treatment in epileptic patients and its interaction with ASMs.
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Affiliation(s)
- Maryam Rahimi Tesiye
- Faculty of Life Science and Biotechnology, Shahid Beheshti University, Tehran 19839-69411, Iran
| | - Mohammad Gol
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy
- PhD School of Clinical and Experimental Medicine (CEM), University of Modena and Reggio Emilia, 41125 Modena, Italy
| | | | | | - Anna-Maria Costa
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy
| | - Maryam Ghasemi-Kasman
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol 47176-47745, Iran
- Department of Physiology, School of Medical Sciences, Babol University of Medical Sciences, Babol 47176-47745, Iran
- Correspondence: (M.G.-K.); (G.B.)
| | - Giuseppe Biagini
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy
- Correspondence: (M.G.-K.); (G.B.)
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Mhaimeed N, Mhaimeed N, Shad MU. Pharmacokinetic mechanisms underlying clinical cases of valproic acid autoinduction: A review. JOURNAL OF AFFECTIVE DISORDERS REPORTS 2022. [DOI: 10.1016/j.jadr.2022.100426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Shawahna R, Zaid L. Concentrations of antiseizure medications in breast milk of lactating women with epilepsy: A systematic review with qualitative synthesis. Seizure 2022; 98:57-70. [PMID: 35427849 DOI: 10.1016/j.seizure.2022.03.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Revised: 03/20/2022] [Accepted: 03/25/2022] [Indexed: 10/18/2022] Open
Abstract
BACKGROUND Recent position papers and guidelines encourage women with epilepsy (WWE) to exclusively breastfeed their infants because the benefits to their infants outweigh the potential adverse effects caused by exposure to antiseizure medications (ASMs). OBJECTIVE The objectives of this review were: to evaluate concentrations of ASMs in breastmilk of lactating WWE, qualitatively synthesize evidence that can be used to estimate theoretical doses as estimated daily intake (EDI) and relative infant dose (RID) of ASMs, and to evaluate potential risks to infants as a result of exposure to ASMs from breastmilk. METHODS This systematic review was registered in the International Prospective Register of Systematic Reviews (PROSPERO) as CRD42020223645. The databases: MEDLINE/PubMed, EMBASE, CINAHL/EBSCO, COCHRANE, SpringerLink, ScienceDirect, Summon, WHO International Clinical Trials Registry Platform, and SCOPUS were systematically searched. A qualitative synthesis was adopted in this study. RESULTS A total of 15 records were included in this systematic review. The included studies reported levels of 8 ASMs in the breastmilk of WWE. The highest RIDs of carbamazepine, lamotrigine, primidone, phenobarbital, gabapentin, valproic acid, ethosuximide, levetiracetam, and topiramate were 3.70%, 36.33%, 4.96%, 3.15%, 4.37%, 1.90%, 31.49%, 12.50%, and 12.18%, respectively. Breastfeeding might be limited or even discontinued when signs of excessive sedation/drowsiness and/or poor weight gain are evident on infants exposed to primidone and phenobarbital, ethosuximide/primidone, or ethosuximide/phenobarbital. CONCLUSIONS Concentrations of ASMs can be detected in breastmilk of WWE and plasma/serum of infants exposed via breastmilk. Healthcare providers and WWE might use the findings of this study to make informed decisions on the safety of breastfeeding while taking ASMs.
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Degremont A, Polard E, Kerbrat S, Grimaud O, Jonville-Béra AP, Ringa V, Travers D, Oger E, Biraben A, Nowak E. Impact of recommendations on sodium valproate prescription among women with epilepsy: An interrupted time-series study. Epilepsy Behav 2021; 125:108449. [PMID: 34839242 DOI: 10.1016/j.yebeh.2021.108449] [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: 10/01/2021] [Revised: 11/12/2021] [Accepted: 11/12/2021] [Indexed: 10/19/2022]
Abstract
BACKGROUND The European Medicines Agency (EMA) has developed risk minimization measures (RMMs) to reduce the use of the teratogenic drug, sodium valproate (VPA). The objective was to assess the impact of these RMMs among females with epilepsy in France. METHODS We used data from the French National Health Insurance Database (SNDS), including 114,936 females aged under 50, with a reimbursement claim for an antiepileptic drug from January 2011 to December 2017, and identified as people with epilepsy. We used a controlled interrupted time series stratifying on age: girls (0-14 years old) and women of childbearing age (15-49 years), and with 129,917 males as controls. RESULTS VPA prevalent use among girls and women of childbearing age with epilepsy decreased significantly after the issue of the RMMs (trend changes of, respectively, -5 and -4 users per 1000 females at-risk per quarter in comparison to the control group). We did not detect any significant change in VPA incident use. CONCLUSIONS VPA use decreased over the study period among females with epilepsy but there were still 317 women and 206 girls started on VPA therapy VPA in 2017 (8 per 1000 at-risk and 18 per 1000, respectively). This suggests that either the measures should be strengthened or that the lowest level of VPA use has been reached. In this context, the introduction of a new RMM (in 2018) needs to be evaluated.
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Affiliation(s)
- Adeline Degremont
- Pharmacovigilance, Pharmacoepidemiology and Drug Information Centre, Department of Clinical Pharmacology, CHU de Rennes, 35033 Rennes, France; Univ Rennes, EA 7449 REPERES 'Pharmacoepidemiology and Health Services Research', 35000 Rennes, France.
| | - Elisabeth Polard
- Pharmacovigilance, Pharmacoepidemiology and Drug Information Centre, Department of Clinical Pharmacology, CHU de Rennes, 35033 Rennes, France; Univ Rennes, EA 7449 REPERES 'Pharmacoepidemiology and Health Services Research', 35000 Rennes, France
| | - Sandrine Kerbrat
- Univ Rennes, EA 7449 REPERES 'Pharmacoepidemiology and Health Services Research', 35000 Rennes, France
| | - Olivier Grimaud
- Ecole des Hautes Etudes en Sante Publique, 35000 Rennes, France
| | - Annie-Pierre Jonville-Béra
- Pharmacovigilance and Drug Information Centre, Department of Pharmacosurveillance, CHU de Tours, 37044 Tours, France
| | - Virginie Ringa
- INSERM, Univ Paris-Saclay, Univ Paris-Sud, UVSQ, CESP, Villejuif, France
| | - David Travers
- Psychiatry Department, Department of Psychiatry, CHU Rennes, Rennes, France
| | - Emmanuel Oger
- Pharmacovigilance, Pharmacoepidemiology and Drug Information Centre, Department of Clinical Pharmacology, CHU de Rennes, 35033 Rennes, France; Univ Rennes, EA 7449 REPERES 'Pharmacoepidemiology and Health Services Research', 35000 Rennes, France
| | - Arnaud Biraben
- Epilepsy Unit, Neurology Department, Rennes University Hospital and INSERM 1099, Signal and Image Processing Laboratory, University of Rennes 1, France
| | - Emmanuel Nowak
- CHU de Brest et Université Européenne de Bretagne, Université de Brest, INSERM CIC 1412, IFR 148, France
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Ajinkya S, Fox J, Lekoubou A. Contemporary trends in antiepileptic drug treatment among women of childbearing age with epilepsy in the United States: 2004-2015. J Neurol Sci 2021; 427:117500. [PMID: 34087566 DOI: 10.1016/j.jns.2021.117500] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 04/18/2021] [Accepted: 05/15/2021] [Indexed: 12/15/2022]
Abstract
OBJECTIVE Certain antiepileptic drugs are associated with an increased risk for major congenital malformations (MCM). However, little is known regarding recent patterns of antiepileptic drug (ASM) prescriptions to women of childbearing age with epilepsy (WCE) in the United States. METHODS Data from the Medical Expenditure Panel Survey was analyzed between the years 2004-2015 to determine trends in national antiepileptic drug prescriptions for WCE. Analysis of associations between demographic covariates and prescription of ASMs with MCM rate > 5% (topiramate, valproate, or phenobarbital) was performed with logistic regression. RESULTS There was a weighted total of 395,292 WCE. 29.1% (23.2%-35.8%) of WCE were prescribed an AED with MCM rate > 5%. The odds of a LEV prescription significantly increased in the 2010-2012 (OR 2.91, 95% CI 1.09-7.79) and 2013-2015 (OR 5.06, 95% CI 2.02-12.67) intervals compared to 2004-2006. Conversely, the odds of PB prescriptions significantly decreased in 2010-2012 (OR 0.13, 95% CI 0.02-0.83) and 2013-2015 (OR 0.13, 95% CI 0.02-0.93) compared to 2004-2006. WCE between the ages of 25-34 (OR = 2.67, 95% CI = 1.32-5.41) and 35-44 years (OR = 2.59, 95% CI = 1.23-5.45), had lower odds of being prescribed ASMs with MCM rate > 5% compared to those between the ages of 15-24 years. SIGNIFICANCE Between 2004 and 2015, the prescriptions of ASMs given to WCE has changed. Regardless, nearly one third were prescribed potentially teratogenic medications despite available and affordable safer alternatives. Identifying factors associated with the prescription of teratogenic drugs to WCE is critical so that it may be further limited in the future.
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Affiliation(s)
- Shaun Ajinkya
- Department of Neurology, Mayo Clinic, Rochester, MN, USA.
| | - Jonah Fox
- Department of Neurology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Alain Lekoubou
- Department of Neurology, Penn State University Hershey Medical Center, Hershey, PA, USA
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Toussi M, Shlaen M, Coste F, de Voogd H, Dimos V, Kaplan S. Effectiveness of risk minimisation measures for valproate: A drug utilisation study in Europe. Pharmacoepidemiol Drug Saf 2021; 30:292-303. [PMID: 33108674 PMCID: PMC7894134 DOI: 10.1002/pds.5166] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 10/16/2020] [Accepted: 10/21/2020] [Indexed: 12/11/2022]
Abstract
PURPOSE The purpose of this study was to evaluate the effectiveness of the risk minimisation measures (RMMs) implemented in Europe in 2014 for valproate-containing products to mitigate their risk during pregnancy and to characterise valproate prescribing patterns in women of childbearing potential (WCBP) before and after implementation of RMMs. METHODS A multinational cohort study based on existing data sources using a pre-/post- design was performed in five European countries (France, Germany, Spain, Sweden, UK) in an outpatient setting. Effectiveness of RMMs was assessed by comparing the proportion of valproate initiations as second (or subsequent) line therapy before and after implementation of RMMs (primary outcome) with an increase in this proportion indicating success of RMMs. Overall use of valproate and incidence of pregnancies in WCBP were also examined. RESULTS The proportion of valproate initiations as second line therapy increased after implementation of RMMs in incident female users in Sweden (from 81.1%, 95% CI 79.9%-82.3% to 84.5%, 95% CI 83.5%-85.5%) and the UK (from 66.4%, 95% CI 64.5%-68.3% to 72.4%, 95% CI 70.0%-74.9%), it remained the same in Germany and Spain and decreased in France from 48.7% (95% CI 45.6%-51.9%) to 40.6% (95% CI 37.6%-43.7%). In Sweden and the UK, the incidence of pregnancies exposed to valproate decreased in the post-implementation period: 8.0 vs 9.5 and 10.9 vs 16.9 per 1000 person-years, respectively. CONCLUSION The results on primary outcome of this study suggest limited effectiveness of the RMMs. Additional RMMs were implemented in 2018.
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Affiliation(s)
- Massoud Toussi
- Department Real World SolutionsIQVIALa Défense CedexFrance
| | | | - Florence Coste
- Department Epidemiology and Risk‐BenefitSanofi Aventis R&DChilly MazarinFrance
| | | | - Vasilis Dimos
- Department Pharmacovigilance (medical section)Demo S.A.AthensGreece
| | - Sigal Kaplan
- Department PharmacoepidemiologyTeva Pharmaceutical Industries LtdNetanyaIsrael
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12
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Valproate use in women aged 15-44 years: an observational study in general practice. BJGP Open 2021; 5:BJGPO.2020.0104. [PMID: 33619016 PMCID: PMC8170604 DOI: 10.3399/bjgpo.2020.0104] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 08/20/2020] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Valproate is a known teratogen. In April 2018, the Medicines and Healthcare products Regulatory Agency (MHRA) restricted its use in women and banned use in pregnancy, except for epilepsy with no other effective treatment. To date, there is limited information on valproate prescribing within primary care. AIM To characterise valproate prescribing to women of childbearing age, recorded advice or GP prescribed contraception, and recorded pregnancies. DESIGN & SETTING A cross-sectional study of patients from all 141 general practices across three clinical commissioning groups (CCGs) in East London. METHOD Women aged 15-44 years prescribed valproate between 1 October 2017 and 1 January 2020 were included. Exclusion criteria were early menopause, sterilisation procedures, or hysterectomy. Pseudonymised data on valproate indication, pregnancy, pre-conception, and contraception advice were retrospectively extracted from general practice consultation data. Data were analysed by quarter using univariate statistics. RESULTS Of the total 1 042 463 registered patients, 344 women aged 15-44 years were prescribed valproate during the study period; 14 were excluded. There were 10 pregnancies during possible valproate exposure; one was terminated. During the study period, the number of women prescribed valproate significantly decreased (P = 0.003). The pregnancy rate decreased from 9.9/1000 on valproate before the MHRA April 2018 warning, to an average of 2.8/1000 afterwards. Recorded pre-conception and contraception advice increased by 79%, from 24% to 43%, of women prescribed valproate. CONCLUSION With continued pregnancies in women aged 15-44 years prescribed valproate, patient education and foetal outcomes remain ongoing concerns. Further improvements are needed to ensure women make informed reproductive choices and safeguard future pregnancies from valproate exposure.
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13
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Dupont S, Vercueil L. Epilepsy and pregnancy: What should the neurologists do? Rev Neurol (Paris) 2021; 177:168-179. [PMID: 33610349 DOI: 10.1016/j.neurol.2021.01.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 01/27/2021] [Indexed: 02/08/2023]
Abstract
Epilepsy is one of the most common chronic disorders affecting women of childbearing age. Unfortunately, many women with epilepsy (WWE) still report not receiving key information about pregnancy. They obviously need information about epilepsy and pregnancy prior to conception with a particular emphasis on effective birth control (i.e. contraception), necessity to plan pregnancy, antiepileptic drugs optimization, and folate supplementation. The risks associated with use of antiepileptic drugs during pregnancy have to be balanced against fetal and maternal risks associated with uncontrolled seizures. This report reviews evidence-based counseling and management strategies concerning maternal and fetal risks associated with seizures, teratogenic risks associated with antiepileptic drug exposure with a special emphasis on developmental and behavioural outcomes of children exposed to intra utero antiepileptic drugs.
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Affiliation(s)
- S Dupont
- Epilepsy and Rehabilitation Unit, Hôpital de la Pitié-Salpêtrière, AP-HP, Paris, France; Centre de Recherche de l'Institut du Cerveau et de la Moëlle Épinière (ICM), UMPC-UMR 7225 CNRS-UMRS 975 INSERM, Paris, France; Université Paris Sorbonne, Paris, France.
| | - L Vercueil
- EFSN, University Grenoble Alpes, Inserm, U1216, CHU Grenoble Alpes, Grenoble Institut Neurosciences (GIN), 38000 Grenoble, France
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Han SH, Lee H, Shin JY, Moon HJ, Lee SY. Real-world prescribing trends of valproate in women with epilepsy in Korea. Epilepsy Behav 2021; 115:107700. [PMID: 33421853 DOI: 10.1016/j.yebeh.2020.107700] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 12/08/2020] [Accepted: 12/08/2020] [Indexed: 11/28/2022]
Abstract
Avoiding valproate is recommended in women of childbearing age due to possible teratogenicity and infertility. We aimed to examine the recent trend of valproate prescriptions in Korea to review the adequacy of anticonvulsant prescriptions in women with epilepsy (WWE). Oral valproate utilization was assessed using nationwide and unselected data from the Korean National Health Insurance Service from 2009 to 2017. The temporal trends of the proportions of valproate prescriptions were analyzed using the Poisson regression model and expressed as average annual percentage change (AAPC). Among the WWE of childbearing age, valproate was prescribed in 37.0% overall and 29.4% as initial prescription in 2017. The proportion of valproate utilization showed a decreasing trend in overall prescription (AAPC = -1.10%) and initial prescription (AAPC = -2.63%). However, the proportion was static over time in the initial monotherapy group (AAPC = -0. 53%), while it was significantly decreasing in the initial polytherapy group (AAPC = -8.25%). A noticeable proportion of WWE was still being prescribed valproate in Korea. In particular, the use of valproate for initial monotherapy has not decreased over the past nine years. This result calls not only for reinforcement of education regarding anticonvulsant selection but also for monitoring the actual prescription.
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Affiliation(s)
- Su-Hyun Han
- Department of Neurology, Chung-Ang University College of Medicine, Seoul, Republic of Korea
| | - Hyesung Lee
- School of Pharmacy, Sungkyunkwan University, Suwon, Republic of Korea
| | - Ju-Young Shin
- School of Pharmacy, Sungkyunkwan University, Suwon, Republic of Korea; Samsung Advanced Institute for Health Sciences & Technology (SAIHST), Sungkyunkwan University, Seoul, Republic of Korea
| | - Hye-Jin Moon
- Department of Neurology, Soonchunhyang University Bucheon Hospital, Bucheon, Republic of Korea.
| | - Seo-Young Lee
- Department of Neurology, Kangwon National University School of Medicine, Chuncheon, Republic of Korea.
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Toussi M, Isabelle B, Tcherny-Lessenot S, de Voogd H, Dimos V, Kaplan S. Effectiveness of risk minimisation measures for valproate: A cross-sectional survey among physicians in Europe. Pharmacoepidemiol Drug Saf 2020; 30:283-291. [PMID: 33216434 PMCID: PMC7894483 DOI: 10.1002/pds.5119] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 08/19/2020] [Accepted: 08/25/2020] [Indexed: 11/24/2022]
Abstract
Purpose This study evaluated the effectiveness of risk minimisation measures (RMMs) implemented following the 2014 referral for valproate in Europe. Methods Cross‐sectional survey was conducted over 2‐month period in 2016 among physicians who prescribed valproate in France, Germany, the United Kingdom, Spain and Sweden. The web‐based questionnaire included five endpoints to evaluate physicians' knowledge on (a) prescribing valproate only for epilepsy and bipolar disorder in women if other treatments were ineffective or not tolerated; (b) ensuring supervision by experienced physicians while treating these conditions; (c) considering alternative treatments for women planning pregnancy, regular review of treatment needs and re‐assessing the benefit–risk balance in women and girls reaching puberty; (d) informing patients about the risks of taking valproate during pregnancy and (e) advising women on effective contraception during their treatment. Results Among 1153 physicians, 95.5% responded prescribing valproate for epilepsy and bipolar disorder in women only if other treatments are ineffective/not tolerated; 66.5% supervised while treatment; 76.6% considered alternative treatments for women planning pregnancy; 92.1% informed patients about the risks of taking valproate during pregnancy and 94.4% advised patients on the use of effective contraception during its treatment. Overall, 25.8% physicians recalled receiving both educational material (EM) and Dear Healthcare Professional Communication (DHPC). All endpoint rates were higher for physicians who acknowledged receipt of both DHPC and EM compared to physicians who did not receive them. Conclusions Although results varied across geography and physician speciality, majority of physicians had good knowledge about the indication and safety aspects of prescribing and using valproate.
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Affiliation(s)
- Massoud Toussi
- Real World Evidence Solutions, IQVIA, La Défense Cedex, France
| | | | | | - Hanka de Voogd
- Global Clinical Research, Mylan, Amstelveen, The Netherlands
| | - Vasilis Dimos
- Department of Pharmacovigilance (medical section), Demo S.A., Athens, Greece
| | - Sigal Kaplan
- Global Patient Safety & Pharmacovigilance, Teva Pharmaceutical Industries Ltd, Netanya, Israel
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Kim H, Faught E, Thurman DJ, Fishman J, Kalilani L. Antiepileptic Drug Treatment Patterns in Women of Childbearing Age With Epilepsy. JAMA Neurol 2020; 76:783-790. [PMID: 30933252 DOI: 10.1001/jamaneurol.2019.0447] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Importance Limited population-based data are available on antiepileptic drug (AED) treatment patterns in women of childbearing age with epilepsy; the current population risk is not clear. Objectives To examine the AED treatment patterns and identify differences in use of valproate sodium and topiramate by comorbidities among women of childbearing age with epilepsy. Design, Setting, and Participants A retrospective cohort study used a nationwide commercial database and supplemental Medicare as well as Medicaid insurance claims data to identify 46 767 women with epilepsy aged 15 to 44 years. The eligible study cohort was enrolled between January 1, 2009, and December 31, 2013. Data analysis was conducted from January 1, 2017, to February 22, 2018. Exposures Cases required an International Classification of Diseases, Ninth Revision, Clinical Modification-coded epilepsy diagnosis with continuous medical and pharmacy enrollment. Incident cases required a baseline of 2 or more years without an epilepsy diagnosis or AED prescription before the index date. For both incident and prevalent cases, focal and generalized epilepsy cohorts were matched by age, payer type, and enrollment period and then compared. Main Outcomes and Measures Antiepileptic drug treatment pattern according to seizure type and comorbidities. Results Of the 46 767 patients identified, there were 8003 incident cases (mean [SD] age, 27.3 [9.4] years) and 38 764 prevalent cases (mean [SD] age, 29.7 [9.0] years). Among 3219 women in the incident epilepsy group who received AEDs for 90 days or more, 3173 (98.6%) received monotherapy as first-line treatment; among 28 239 treated prevalent cases, 18 987 (67.2%) received monotherapy. In 3544 (44.3%) incident cases and 9480 (24.5%) prevalent cases, AED treatment was not documented during 180 days or more of follow-up after diagnosis. Valproate (incident: 35 [5.81%]; prevalent: 514 [13.1%]) and phenytoin (incident: 33 [5.48%]; prevalent: 178 [4.53%]) were more commonly used for generalized epilepsy and oxcarbazepine (incident: 53 [8.03%]; prevalent: 386 [9.89%]) was more often used for focal epilepsy. Levetiracetam (incident: focal, 267 [40.5%]; generalized, 271 [45.0%]; prevalent: focal, 794 [20.3%]; generalized, 871 [22.2%]), lamotrigine (incident: focal, 123 [18.6%]; generalized, 106 [17.6%]; prevalent: focal, 968 [24.8%]; generalized, 871 [22.2%]), and topiramate (incident: focal, 102 [15.5%]; generalized, 64 [10.6%]; prevalent: focal, 499 [12.8%]; generalized, 470 [12.0%]) were leading AEDs prescribed for both focal and generalized epilepsy. Valproate was more commonly prescribed for women with comorbid headache or migraine (incident: 53 of 1251 [4.2%]; prevalent: 839 of 8046 [10.4%]), mood disorder (incident: 63 of 860 [7.3%]; prevalent: 1110 of 6995 [15.9%]), and anxiety and dissociative disorders (incident: 57 of 881 [6.5%]; prevalent: 798 of 5912 [13.5%]). Topiramate was more likely prescribed for those with comorbid headache or migraine (incident: 335 of 1251 [26.8%]; prevalent: 2322 of 8046 [28.9%]). Conclusions and Relevance Many women appear to be treated with valproate and topiramate despite known teratogenicity risks. Comorbidities may affect selecting certain AEDs despite their teratogenicity risks.
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Affiliation(s)
- Hyunmi Kim
- Department of Neurology, Stanford University School of Medicine, Palo Alto, California
| | - Edward Faught
- Department of Neurology, Emory University School of Medicine, Atlanta, Georgia
| | - David J Thurman
- Department of Neurology, Emory University School of Medicine, Atlanta, Georgia
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Hurault-Delarue C, Morris JK, Charlton R, Gini R, Loane M, Pierini A, Puccini A, Neville A, Snowball J, Damase-Michel C. Prescription of antiepileptic medicines including valproate in pregnant women: A study in three European countries. Pharmacoepidemiol Drug Saf 2019; 28:1510-1518. [PMID: 31517430 DOI: 10.1002/pds.4897] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 08/20/2019] [Accepted: 08/24/2019] [Indexed: 12/17/2022]
Abstract
PURPOSE To study patterns of antiepileptic drugs (AED) prescribing, particularly valproate, during pregnancy over a 10-year period in the UK, Italy, and France. METHODS Data on pregnancies conceived after 1 January 2007 with outcomes before 31 December 2016 were extracted from four European electronic health care databases (380 499 in the United Kingdom (UK), 66 681 in France, and 649 918 in Italy [355 767 in Emilia Romagna and 294 151 in Tuscany]). Prevalence of AEDs with an ATC code starting N03A and clobazam (N05BA09) were stratified by country and calendar year. RESULTS AED prescribing during pregnancy varied from 3.0 (2.8-3.1) per 1000 pregnancies in Emilia Romagna to 7.8 (7.5-8.0) in the UK, 5.9 (5.6-6.1) in Tuscany, and 6.3 (5.7-6.9) in France. Lamotrigine was commonly prescribed in all regions with a third of women exposed to an AED during pregnancy taking lamotrigine in the UK and France. Valproate was prescribed to 28.6% of AED exposed pregnant women in Tuscany, 21.6% in France, 16.7% in Emilia Romagna, and 11.9% in the UK. Over the study period, the prevalence of AED prescribing increased in the UK mainly due to increases in pregabalin and gabapentin, declined in France mainly related to decreases in clonazepam, and remained constant in Italy. Valproate prescriptions declined to a prevalence <1 per 1000 pregnancies in 2015 to 2016 in the UK, France, and Emilia Romagna. CONCLUSIONS Variations in AED prescribing during pregnancy indicate the potential for further reductions, particularly of valproate. Increases in pregabalin/gabapentin prescribing, for which risks are not well known, are a cause for concern.
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Affiliation(s)
- Caroline Hurault-Delarue
- Pharmacologie Faculté de Médecine, Université Paul-Sabatier Toulouse III CHU Toulouse, UMR INSERM, Toulouse, 1027, France
| | - Joan K Morris
- Population Health Research Institute, St George's, University of London, St George's, University of London, London, UK
| | - Rachel Charlton
- Department of Pharmacy and Pharmacology, University of Bath, Bath, UK
| | - Rosa Gini
- Agenzia Regionale di Sanità della Toscana, Florence, Italy
| | - Maria Loane
- Centre for Maternal, Fetal and Infant Research, INHR, Ulster University, Newtowanbbey, UK
| | - Anna Pierini
- Institute of Clinical Physiology-National Research Council (IFC-CNR)/Fondazione Toscana "Gabriele Monasterio", Pisa, Italy
| | - Aurora Puccini
- Drug Policy Service, Emilia Romagna Region Health Authority, Bologna, Italy
| | - Amanda Neville
- IMER (Emilia Romagna Registry of Birth Defects), Centre for Clinical and Epidemiological Research, University of Ferrara and Azienda Ospedaliero-Universitaria di Ferrara, Ferrara, Italy
| | - Julia Snowball
- Department of Pharmacy and Pharmacology, University of Bath, Bath, UK
| | - Christine Damase-Michel
- Pharmacologie Faculté de Médecine, Université Paul-Sabatier Toulouse III CHU Toulouse, UMR INSERM, Toulouse, 1027, France
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Cantwell MG, Katz DR, Sullivan J, Kuhn A. Evaluation of the artificial sweetener sucralose as a sanitary wastewater tracer in Narragansett Bay, Rhode Island, USA. MARINE POLLUTION BULLETIN 2019; 146:711-717. [PMID: 31426213 PMCID: PMC6766748 DOI: 10.1016/j.marpolbul.2019.07.036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 07/15/2019] [Accepted: 07/15/2019] [Indexed: 05/04/2023]
Abstract
Narragansett Bay is an urban estuary that historically has been impacted by long-term discharge of sanitary wastewater (WW) effluents. High-density water sampling was conducted in Narragansett Bay, RI, USA, in an effort to understand the distribution and behavior of sucralose, an artificial sweetener that has shown utility as a sanitary wastewater tracer. Water samples were collected at sixty-seven sites and analyzed for sucralose, whose performance was compared to other tracers present in wastewater effluents. Concentrations of sucralose were much higher than the other tracers measured, carbamazepine and caffeine, ranging from 18 to 3180 ng/L and corresponded well with salinity (r2 = 0.88), demonstrating conservative behavior throughout the Bay. Mapped interpolation data using an empirical bayesian kriging model clearly show the spatial trends of WW and how estuarine processes influence dilution and dispersion throughout the Bay. These findings provide further evidence of the efficacy of sucralose as a wastewater tracer in large urban estuaries where continuous high-volume discharge of WW occur.
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Affiliation(s)
- Mark G Cantwell
- US Environmental Protection Agency, Office of Research and Development (ORD), National Health and Environmental Effects Research Laboratory (NHEERL), Atlantic Ecology Division (AED), 27 Tarzwell Drive, Narragansett, RI 02882, USA.
| | - David R Katz
- US Environmental Protection Agency, Office of Research and Development (ORD), National Health and Environmental Effects Research Laboratory (NHEERL), Atlantic Ecology Division (AED), 27 Tarzwell Drive, Narragansett, RI 02882, USA
| | - Julia Sullivan
- Oak Ridge Associated Universities, Narragansett, RI 02882, USA
| | - Anne Kuhn
- US Environmental Protection Agency, Office of Research and Development (ORD), National Health and Environmental Effects Research Laboratory (NHEERL), Atlantic Ecology Division (AED), 27 Tarzwell Drive, Narragansett, RI 02882, USA
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Charlton R, Damase‐Michel C, Hurault‐Delarue C, Gini R, Loane M, Pierini A, Puccini A, Neville A, Snowball J, Morris JK. Did advice on the prescription of sodium valproate reduce prescriptions to women? An observational study in three European countries between 2007 and 2016. Pharmacoepidemiol Drug Saf 2019; 28:1519-1528. [DOI: 10.1002/pds.4881] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 06/17/2019] [Accepted: 07/22/2019] [Indexed: 12/29/2022]
Affiliation(s)
- Rachel Charlton
- Department of Pharmacy and PharmacologyUniversity of Bath Bath UK
| | - Christine Damase‐Michel
- Pharmacologie Faculté de MédecineUniversité Toulouse III, CHU Toulouse, INSERM UMR1027 France
| | | | - Rosa Gini
- Agenzia regionale di sanità della Toscana Italy
| | - Maria Loane
- Institute of Nursing and Health ResearchUlster University Co Antrim Northern Ireland
| | - Anna Pierini
- Institute of Clinical Physiology ‐ National Research Council (IFC‐CNR)/Fondazione Toscana “Gabriele Monasterio” Pisa Italy
| | - Aurora Puccini
- Drug Policy ServiceEmilia Romagna Region Health Authority Bologna Italy
| | - Amanda Neville
- IMER (Emilia Romagna Registry of Birth Defects), Centre for Clinical and Epidemiological ResearchUniversity of Ferrara and Azienda Ospedaliero‐Universitaria di Ferrara Ferrara Italy
| | - Julia Snowball
- Department of Pharmacy and PharmacologyUniversity of Bath Bath UK
| | - Joan K. Morris
- Centre for Environmental and Preventive MedicineQueen Mary University of London London UK
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Trends in sodium valproate prescriptions among children aged 0 to 14 years between 2010 and 2016: A study based on the French National Health Insurance Database. Seizure 2019; 70:71-76. [PMID: 31302303 DOI: 10.1016/j.seizure.2019.07.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 07/03/2019] [Accepted: 07/05/2019] [Indexed: 11/21/2022] Open
Abstract
PURPOSE After a huge campaign of information on the teratogenic risk of sodium valproate (VPA) having taken place in France we aimed to evaluate the trend of its prescriptions in young epileptic girls. METHOD Using the French National Health Insurance Database we searched for patients aged 0-14 years being supplied an antiepileptic drug (AED) between 2010 and 2016. RESULTS 113,362 children received at least one AED, 61,259 boys and 52,103 girls. Compared to 2010-2014 years, VPA was less prescribed in 2016 as first AED (29% vs 37.3% respectively). The difference between the two periods was greater for girls (-41%) than for boys (-12%). CONCLUSION The changing trend of VPA as first AED prescribed, particularly in girls, reflects published evidence in terms of safety.
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Mostacci B, Bisulli F, Poluzzi E, Cocchi G, Piccinni C, Curti A, Simonazzi G, Astolfi G, Rizzo N, Zenesini C, D'Alessandro R, Tinuper P. Emilia-Romagna Study on Pregnancy and Exposure to Antiepileptic drugs (ESPEA): a population-based study on prescription patterns, pregnancy outcomes and fetal health. J Neurol Neurosurg Psychiatry 2018; 89:983-988. [PMID: 29549194 PMCID: PMC6109238 DOI: 10.1136/jnnp-2017-317833] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Revised: 01/23/2018] [Accepted: 02/21/2018] [Indexed: 12/15/2022]
Abstract
OBJECTIVES To assess the prevalence of antiepileptic drug (AED) exposure in pregnant women and the comparative risk of terminations of pregnancy (TOPs), spontaneous abortions, stillbirths, major birth defects (MBDs), neonatal distress and small for gestational age (SGA) infants following intrauterine AED exposure in the Emilia Romagna region, Italy (4 459 246 inhabitants on 31 December 2011). METHODS We identified all deliveries and hospitalised abortions in Emilia Romagna in the period 2009-2011 from the certificate of delivery assistance registry (Certificato di Assistenza al Parto- CedAP) and the hospital discharge card registry, exposure to AEDs from the reimbursed drug prescription registries, MBDs from the regional registry of congenital malformations, and Apgar scores and cases of SGA from the CedAP. Records from different registries were linked. RESULTS We identified 145 243 pregnancies: 111 284 deliveries, 16 408 spontaneous abortions and 17 551 TOPs. Six hundred and eleven pregnancies (0.42%; 95% Cl 0.39 to 0.46) were exposed to AEDs. In the AED-exposed group 21% of pregnancies ended in TOPs vs 12% in the non-exposed women (OR: 2.24; 95% CI 1.41 to 3.56). Rates of spontaneous abortions, stillbirths, neonatal distress and SGA were comparable. Three hundred and fifty-three babies (0.31%; 95% CI 0.28 to 0.35) were exposed to AEDs during the first trimester. MBD rates were 2.3% in the exposed vs 2.0% in the non-exposed pregnancies (OR: 1.12, 95% CI 0.55 to 2.55). CONCLUSION The Emilia Romagna prevalence of AED exposure in pregnancy was 0.42%, comparable with previous European studies. Rates of spontaneous abortions, stillbirths, neonatal distress, SGA and MBDs following AED exposure were not significantly increased. The rate of TOPs was significantly higher in the AED-exposed women.
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Affiliation(s)
| | - Francesca Bisulli
- Institute of Neurological Sciences of Bologna, Bologna, Italy.,Department of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna, Bologna, Italy
| | - Elisabetta Poluzzi
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, Bologna, Italy
| | - Guido Cocchi
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, Bologna, Italy.,Division of Neonatology, Sant'Orsola Malpighi Hospital, Bologna, Italy
| | - Carlo Piccinni
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, Bologna, Italy
| | - Alessandra Curti
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, Bologna, Italy.,Division of Prenatal Medicine, Sant'Orsola Malpighi Hospital, Bologna, Italy
| | - Giuliana Simonazzi
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, Bologna, Italy.,Division of Prenatal Medicine, Sant'Orsola Malpighi Hospital, Bologna, Italy
| | - Gianni Astolfi
- IMER Registry (Emila Romagna Registry of Birth Defects)- Department of Biomedical and Specialty Surgical Sciences, University of Ferrara, Ferrara, Italy
| | - Nicola Rizzo
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, Bologna, Italy.,Division of Prenatal Medicine, Sant'Orsola Malpighi Hospital, Bologna, Italy
| | | | | | - Paolo Tinuper
- Institute of Neurological Sciences of Bologna, Bologna, Italy.,Department of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna, Bologna, Italy
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Vatzaki E, Straus S, Dogne JM, Garcia Burgos J, Girard T, Martelletti P. Latest clinical recommendations on valproate use for migraine prophylaxis in women of childbearing age: overview from European Medicines Agency and European Headache Federation. J Headache Pain 2018; 19:68. [PMID: 30109437 PMCID: PMC6092728 DOI: 10.1186/s10194-018-0898-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 07/31/2018] [Indexed: 11/10/2022] Open
Abstract
Migraine is a common and burdensome neurological condition which affects mainly female patients during their childbearing years. Valproate has been widely used for the prophylaxis of migraine attacks and is also included in the main European Guidelines. Previous (2014) European recommendations on limiting the use of valproate in women of childbearing age did not achieve their objective in terms of limiting the use of valproate in women of childbearing age and raising awareness regarding the hazardous effect of valproate to children exposed in utero. The teratogenic and foetotoxic effects of valproate are well documented, and more recent studies show that there is an even greater neurodevelopmental risk to children exposed to valproate in the womb. The latest 2018 European review from the European Medicines Agency, with the active participation of the European Headache Federation, concluded that not enough has been done to mitigate the risks associated with in utero exposure to valproate. The review called for more extensive restrictions to the conditions for prescribing, better public awareness, and a more effective education campaign in migrainous women.
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Affiliation(s)
| | - Sabine Straus
- Medicines Evaluation Board, Utrecht, The Netherlands
- PRAC member, European Medicines Agency, London, UK
| | - Jean-Michel Dogne
- PRAC member, European Medicines Agency, London, UK
- Department of Pharmacy, Namur Thrombosis and Haemostasis Centre - Narilis University of Namur, Namur, Belgium
| | | | - Thomas Girard
- European Medicines Agency, 30 Churchill Place, London, E14 5EU UK
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COSTA RODRIGOMDA, KARMIRIAN KARINA, REHEN STEVENSK. Deformation of Mitochondrial Cristae in Human Neural Progenitor Cells Exposed to Valproic Acid. ACTA ACUST UNITED AC 2018; 90:2223-2232. [DOI: 10.1590/0001-3765201820170762] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Accepted: 12/04/2017] [Indexed: 12/29/2022]
Affiliation(s)
| | | | - STEVENS K. REHEN
- Instituto D’Or de Pesquisa e Ensino, Brazil; Universidade Federal do Rio de Janeiro, Brazil
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Meador KJ, Pennell PB, May RC, Gerard E, Kalayjian L, Velez-Ruiz N, Penovich P, Cavitt J, French J, Hwang S, Pack AM, Sam M, Moore E, Ippolito DM. Changes in antiepileptic drug-prescribing patterns in pregnant women with epilepsy. Epilepsy Behav 2018; 84:10-14. [PMID: 29730500 PMCID: PMC6016834 DOI: 10.1016/j.yebeh.2018.04.009] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Accepted: 04/13/2018] [Indexed: 12/15/2022]
Abstract
OBJECTIVE We analyzed current prescribing patterns for antiepileptic drugs (AEDs) in pregnant women with epilepsy (PWWE) at 20 USA tertiary epilepsy centers. METHODS The Maternal Outcomes and Neurodevelopmental Effects of Antiepileptic Drugs (MONEAD) study is an NIH-funded, prospective, observational, multicenter investigation of pregnancy outcomes for both mother and child, which enrolled women from December 2012 to January 2016. Inclusion criteria for PWWE included ages 14-45 years and up to 20 weeks gestational age. Exclusion criteria included history of psychogenic nonepileptic spells, expected intelligence quotient (IQ) <70, other major medical illness, progressive cerebral disease, and switching AEDs in pregnancy prior to enrollment. RESULTS Three hundred fifty-one PWWE were enrolled in the MONEAD study, which included 259 (73.8%) on monotherapy, 77 (21.9%) on polytherapy, and 15 (4.3%) on no AEDs. The most common AED monotherapy regimens were lamotrigine (42.1% of monotherapies), levetiracetam (37.5%), carbamazepine (5.4%), zonisamide (5.0%), oxcarbazepine (4.6%), and topiramate (3.1%). All other individual monotherapies were each <1%. The most common AED polytherapy combination was lamotrigine + levetiracetam (42.9% of polytherapies), followed by lacosamide + levetiracetam (6.5%), lamotrigine + zonisamide (5.2%), and all other remaining combinations (each <4%); only 5.2% of polytherapy subjects were on ≥3 AEDs (1.1% of total PWWE). Only four subjects (1.1%) were on valproate (1 monotherapy, 3 polytherapy). CONCLUSIONS The distribution of AED use likely reflects current prescribing patterns for PWWE cared for in USA tertiary epilepsy centers. This distribution has changed markedly since the turn of the century, but changes in the general population remain uncertain.
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Affiliation(s)
| | - Page B Pennell
- Brigham & Women's Hospital, Harvard Medical School, United States
| | | | | | | | | | | | | | | | | | | | - Maria Sam
- Wake Forest University, United States
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Women with epilepsy in childbearing age: Pregnancy-related knowledge, information sources, and antiepileptic drugs. Epilepsy Behav 2018; 80:122-128. [PMID: 29414541 DOI: 10.1016/j.yebeh.2018.01.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 01/02/2018] [Accepted: 01/04/2018] [Indexed: 11/21/2022]
Abstract
Pregnancy-related issues in epilepsy (PRIE) are essential for management of epilepsy in women. We conducted a study among women with epilepsy (WWE) aged 15-45years about their knowledge, sources, and needs for information regarding PRIE, which included their current antiepileptic drugs (AEDs) usage. Women with epilepsy, visitors of Croatian Association for Epilepsy webpage, were offered an online questionnaire, and 200 responses were analyzed. The mean number of correct answers about PRIE was 3.5 out of 5. Main predictors of knowledge on PRIE were a prior consultation with a neurologist and higher usage of books/brochures. A prior neurologist consultation on PRIE was stated by 45% of subjects. As the preferred future mode of being informed on PRIE, majority of women (61%) chooses their neurologist, 22% written materials distributed by a neurologist, and only 13% Internet. Levetiracetam was the most commonly used AED (34.5%). Valproate was used by 26%, and of those 59% stated no previous consultation on PRIE with their neurologist. In summary, we believe our study shows that knowledge of PRIE among WWE in their childbearing age is unsatisfactory, as are the neurologist consultation rates about PRIE. Our results demonstrate that, despite modern technologies, educational activities should be based on neurologist consultations and providing the patients with appropriate written materials. This is especially true for the relatively large proportion of women still taking valproate.
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Johannessen Landmark C, Farmen AH, Burns ML, Baftiu A, Lossius MI, Johannessen SI, Tomson T. Pharmacokinetic variability of valproate during pregnancy - Implications for the use of therapeutic drug monitoring. Epilepsy Res 2018; 141:31-37. [PMID: 29453075 DOI: 10.1016/j.eplepsyres.2018.02.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Revised: 02/07/2018] [Accepted: 02/08/2018] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND PURPOSE Use of valproate (VPA) in women of childbearing age is restricted due to dose-dependent risk of teratogenicity. The purpose of this study was to characterise pharmacokinetic variability of VPA in pregnancy, and discuss use of therapeutic drug monitoring (TDM) as guidance to exposure in women. METHOD Measurements of trough total and unbound VPA concentrations before, during and after pregnancy, at assumed steady-state were collected from the TDM-database (2006-2016) at the National Center for Epilepsy in Norway. Additional clinical data were obtained from the Oppland county Perinatal Database (1994-2011). RESULTS Data from 51 pregnancies in 33 women aged 19-40 years were included. Each woman underwent 1-4 pregnancies, and 1-7 measurements per pregnancy were performed. The variability in total concentration/dose (C/D)-ratios between women was 13-fold, and intra-patient variability extensive. Total C/D-ratios were reduced by 46% from before pregnancy to third trimester (0.48-0.29 μmol/L/mg). Unbound concentrations of VPA were only requested in 10% of the pregnancies. Repeated measurements from two pregnancies in one women revealed increased unbound concentration of VPA during pregnancy. There were 19 with idiopathic generalized epilepsy and two focal based on clinical data from 21 women and 38 pregnancies; 1 major congenital malformation was noted. CONCLUSION There is pronounced pharmacokinetic variability of VPA during pregnancy. Unbound concentrations are rarely requested. TDM should be used by measurements of both total and unbound concentrations since total concentrations may be misleading for efficacy and fetal exposure of VPA.
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Affiliation(s)
- Cecilie Johannessen Landmark
- Programme for Pharmacy, Dept of Life Sciences and Health, Faculty of Health Sciences, Oslo Metropolitan University, Oslo, Norway; The National Center for Epilepsy, Sandvika, Oslo University Hospital, Norway; Dept of Pharmacology, Oslo University Hospital, Norway.
| | | | | | - Arton Baftiu
- Programme for Pharmacy, Dept of Life Sciences and Health, Faculty of Health Sciences, Oslo Metropolitan University, Oslo, Norway
| | - Morten I Lossius
- The National Center for Epilepsy, Sandvika, Oslo University Hospital, Norway; Faculty of Medicine, University of Oslo, Norway
| | - Svein I Johannessen
- The National Center for Epilepsy, Sandvika, Oslo University Hospital, Norway; Dept of Pharmacology, Oslo University Hospital, Norway
| | - Torbjörn Tomson
- Dept of Clinical Neuroscience, Karolinska Institute, Stockholm, Sweden
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Diav-Citrin O, Shechtman S, Zvi N, Finkel-Pekarsky V, Ornoy A. Is it safe to use lamotrigine during pregnancy? A prospective comparative observational study. Birth Defects Res 2017; 109:1196-1203. [DOI: 10.1002/bdr2.1058] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 02/13/2017] [Accepted: 04/24/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Orna Diav-Citrin
- The Israeli Teratology Information Service, Israel Ministry of Health; Jerusalem
- The Hebrew University Hadassah Medical School; Jerusalem Israel
| | - Svetlana Shechtman
- The Israeli Teratology Information Service, Israel Ministry of Health; Jerusalem
| | - Naama Zvi
- The Israeli Teratology Information Service, Israel Ministry of Health; Jerusalem
| | | | - Asher Ornoy
- The Hebrew University Hadassah Medical School; Jerusalem Israel
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The effect of carbamazepine on etonogestrel concentrations in contraceptive implant users. Contraception 2017; 95:571-577. [DOI: 10.1016/j.contraception.2017.03.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Revised: 03/02/2017] [Accepted: 03/05/2017] [Indexed: 11/18/2022]
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Pariente G, Leibson T, Shulman T, Adams-Webber T, Barzilay E, Nulman I. Pregnancy Outcomes Following In Utero Exposure to Lamotrigine: A Systematic Review and Meta-Analysis. CNS Drugs 2017; 31:439-450. [PMID: 28434134 DOI: 10.1007/s40263-017-0433-0] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
INTRODUCTION Lamotrigine is used in pregnancy to control epilepsy and mood disorders. The reproductive safety of this widely used drug remains undefined and may represent a significant public health concern. OBJECTIVE We aimed to perform a systematic review and meta-analysis of existing knowledge related to malformation rates and maternal-neonatal outcomes after in utero exposure to monotherapy with lamotrigine. METHODS Relevant studies were identified through systematic searches conducted in MEDLINE (Ovid), Embase (Ovid), CENTRAL (Ovid), and Web of Science (Thomson Reuters) from database inception to July 2016; no language or date restrictions were applied. All publications of clinically relevant outcomes of pregnancies following in utero exposure to lamotrigine were included in this systematic review and meta-analysis. RESULTS A total of 21 studies describing immediate pregnancy outcomes and rates of congenital malformations fulfilled the inclusion criteria. Compared with disease-matched controls (n = 1412, total number of patients) and healthy controls (n = 774,571, total number of patients), in utero exposure to lamotrigine monotherapy was found to be associated with significantly decreased rates of inborn defects (odds ratio [OR] 1.15; 95% confidence interval [CI] 0.62-2.16 and OR 1.25; 95% CI 0.89-1.74, respectively). Rates of miscarriages, stillbirths, preterm deliveries, and small for gestational age (SGA) neonates were not found to have been increased after in-utero exposure to LTG compared to the general population. Similarly, in utero exposure to lamotrigine monotherapy was not found to be associated with increased rates of inborn defects compared with in utero exposure to carbamazepine, and lamotrigine was found to be statistically significantly less teratogenic than valproic acid (n = 12,958 and 10,748; OR 0.84; 95% CI 0.68-1.03 and OR 0.32; 95% CI 0.26-0.39, respectively). CONCLUSION No association was found between prenatal lamotrigine monotherapy and increased rates of birth defects and other explored variables related to adverse pregnancy outcomes.
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Affiliation(s)
- Gali Pariente
- Division of Clinical Pharmacology and Toxicology, The Hospital for Sick Children, University of Toronto, 555 University Avenue, Toronto, ON, M5G 1X8, Canada.
| | - Tom Leibson
- Division of Clinical Pharmacology and Toxicology, The Hospital for Sick Children, University of Toronto, 555 University Avenue, Toronto, ON, M5G 1X8, Canada
| | - Talya Shulman
- Division of Clinical Pharmacology and Toxicology, The Hospital for Sick Children, University of Toronto, 555 University Avenue, Toronto, ON, M5G 1X8, Canada
| | | | - Eran Barzilay
- Department of Obstetrics and Gynecology, Chaim Sheba Medical Center, Tel Hashomer, Affiliated with the Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Irena Nulman
- Division of Clinical Pharmacology and Toxicology, The Hospital for Sick Children, University of Toronto, 555 University Avenue, Toronto, ON, M5G 1X8, Canada
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Additional considerations are required when preparing a protocol for a systematic review with multiple interventions. J Clin Epidemiol 2017; 83:65-74. [PMID: 28088593 DOI: 10.1016/j.jclinepi.2016.11.015] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Revised: 11/21/2016] [Accepted: 11/30/2016] [Indexed: 11/22/2022]
Abstract
OBJECTIVES The number of systematic reviews that aim to compare multiple interventions using network meta-analysis is increasing. In this study, we highlight aspects of a standard systematic review protocol that may need modification when multiple interventions are to be compared. STUDY DESIGN AND SETTING We take the protocol format suggested by Cochrane for a standard systematic review as our reference and compare the considerations for a pairwise review with those required for a valid comparison of multiple interventions. We suggest new sections for protocols of systematic reviews including network meta-analyses with a focus on how to evaluate their assumptions. We provide example text from published protocols to exemplify the considerations. CONCLUSION Standard systematic review protocols for pairwise meta-analyses need extensions to accommodate the increased complexity of network meta-analysis. Our suggested modifications are widely applicable to both Cochrane and non-Cochrane systematic reviews involving network meta-analyses.
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Weston J, Bromley R, Jackson CF, Adab N, Clayton‐Smith J, Greenhalgh J, Hounsome J, McKay AJ, Tudur Smith C, Marson AG. Monotherapy treatment of epilepsy in pregnancy: congenital malformation outcomes in the child. Cochrane Database Syst Rev 2016; 11:CD010224. [PMID: 27819746 PMCID: PMC6465055 DOI: 10.1002/14651858.cd010224.pub2] [Citation(s) in RCA: 106] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
BACKGROUND There is evidence that certain antiepileptic drugs (AEDs) are teratogenic and are associated with an increased risk of congenital malformation. The majority of women with epilepsy continue taking AEDs throughout pregnancy; therefore it is important that comprehensive information on the potential risks associated with AED treatment is available. OBJECTIVES To assess the effects of prenatal exposure to AEDs on the prevalence of congenital malformations in the child. SEARCH METHODS We searched the Cochrane Epilepsy Group Specialized Register (September 2015), Cochrane Central Register of Controlled Trials (CENTRAL) (2015, Issue 11), MEDLINE (via Ovid) (1946 to September 2015), EMBASE (1974 to September 2015), Pharmline (1978 to September 2015), Reprotox (1983 to September 2015) and conference abstracts (2010-2015) without language restriction. SELECTION CRITERIA We included prospective cohort controlled studies, cohort studies set within pregnancy registries and randomised controlled trials. Participants were women with epilepsy taking AEDs; the two control groups were women without epilepsy and women with epilepsy who were not taking AEDs during pregnancy. DATA COLLECTION AND ANALYSIS Three authors independently selected studies for inclusion. Five authors completed data extraction and risk of bias assessments. The primary outcome was the presence of a major congenital malformation. Secondary outcomes included specific types of major congenital malformations. Where meta-analysis was not possible, we reviewed included studies narratively. MAIN RESULTS We included 50 studies, with 31 contributing to meta-analysis. Study quality varied, and given the observational design, all were at high risk of certain biases. However, biases were balanced across the AEDs investigated and we believe that the results are not explained by these biases.Children exposed to carbamazepine (CBZ) were at a higher risk of malformation than children born to women without epilepsy (N = 1367 vs 2146, risk ratio (RR) 2.01, 95% confidence interval (CI) 1.20 to 3.36) and women with untreated epilepsy (N = 3058 vs 1287, RR 1.50, 95% CI 1.03 to 2.19). Children exposed to phenobarbital (PB) were at a higher risk of malformation than children born to women without epilepsy (N = 345 vs 1591, RR 2.84, 95% CI 1.57 to 5.13). Children exposed to phenytoin (PHT) were at an increased risk of malformation compared with children born to women without epilepsy (N = 477 vs 987, RR 2.38, 95% CI 1.12 to 5.03) and to women with untreated epilepsy (N = 640 vs 1256, RR 2.40, 95% CI 1.42 to 4.08). Children exposed to topiramate (TPM) were at an increased risk of malformation compared with children born to women without epilepsy (N = 359 vs 442, RR 3.69, 95% CI 1.36 to 10.07). The children exposed to valproate (VPA) were at a higher risk of malformation compared with children born to women without epilepsy (N = 467 vs 1936, RR 5.69, 95% CI 3.33 to 9.73) and to women with untreated epilepsy (N = 1923 vs 1259, RR 3.13, 95% CI 2.16 to 4.54). There was no increased risk for major malformation for lamotrigine (LTG). Gabapentin (GBP), levetiracetam (LEV), oxcarbazepine (OXC), primidone (PRM) or zonisamide (ZNS) were not associated with an increased risk, however, there were substantially fewer data for these medications.For AED comparisons, children exposed to VPA had the greatest risk of malformation (10.93%, 95% CI 8.91 to 13.13). Children exposed to VPA were at an increased risk of malformation compared with children exposed to CBZ (N = 2529 vs 4549, RR 2.44, 95% CI 2.00 to 2.94), GBP (N = 1814 vs 190, RR 6.21, 95% CI 1.91 to 20.23), LEV (N = 1814 vs 817, RR 5.82, 95% CI 3.13 to 10.81), LTG (N = 2021 vs 4164, RR 3.56, 95% CI 2.77 to 4.58), TPM (N = 1814 vs 473, RR 2.35, 95% CI 1.40 to 3.95), OXC (N = 676 vs 238, RR 3.71, 95% CI 1.65 to 8.33), PB (N = 1137 vs 626, RR 1.59, 95% CI 1.11 to 2.29, PHT (N = 2319 vs 1137, RR 2.00, 95% CI 1.48 to 2.71) or ZNS (N = 323 vs 90, RR 17.13, 95% CI 1.06 to 277.48). Children exposed to CBZ were at a higher risk of malformation than those exposed to LEV (N = 3051 vs 817, RR 1.84, 95% CI 1.03 to 3.29) and children exposed to LTG (N = 3385 vs 4164, RR 1.34, 95% CI 1.01 to 1.76). Children exposed to PB were at a higher risk of malformation compared with children exposed to GBP (N = 204 vs 159, RR 8.33, 95% CI 1.04 to 50.00), LEV (N = 204 vs 513, RR 2.33, 95% CI 1.04 to 5.00) or LTG (N = 282 vs 1959, RR 3.13, 95% CI 1.64 to 5.88). Children exposed to PHT had a higher risk of malformation than children exposed to LTG (N = 624 vs 4082, RR 1.89, 95% CI 1.19 to 2.94) or to LEV (N = 566 vs 817, RR 2.04, 95% CI 1.09 to 3.85); however, the comparison to LEV was not significant in the random-effects model. Children exposed to TPM were at a higher risk of malformation than children exposed to LEV (N = 473 vs 817, RR 2.00, 95% CI 1.03 to 3.85) or LTG (N = 473 vs 3975, RR 1.79, 95% CI 1.06 to 2.94). There were no other significant differences, or comparisons were limited to a single study.We found significantly higher rates of specific malformations associating PB exposure with cardiac malformations and VPA exposure with neural tube, cardiac, oro-facial/craniofacial, and skeletal and limb malformations in comparison to other AEDs. Dose of exposure mediated the risk of malformation following VPA exposure; a potential dose-response association for the other AEDs remained less clear. AUTHORS' CONCLUSIONS Exposure in the womb to certain AEDs carried an increased risk of malformation in the foetus and may be associated with specific patterns of malformation. Based on current evidence, LEV and LTG exposure carried the lowest risk of overall malformation; however, data pertaining to specific malformations are lacking. Physicians should discuss both the risks and treatment efficacy with the patient prior to commencing treatment.
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Affiliation(s)
- Jennifer Weston
- Institute of Translational Medicine, University of LiverpoolDepartment of Molecular and Clinical PharmacologyClinical Sciences Centre for Research and Education, Lower LaneFazakerleyLiverpoolMerseysideUKL9 7LJ
| | - Rebecca Bromley
- University of ManchesterInstitute of Human Development6th Floor, Genetic Medicine, St Mary's HospitalOxford RoadManchesterUKM13 9WL
| | - Cerian F Jackson
- Institute of Translational Medicine, University of LiverpoolDepartment of Molecular and Clinical PharmacologyClinical Sciences Centre for Research and Education, Lower LaneFazakerleyLiverpoolMerseysideUKL9 7LJ
| | - Naghme Adab
- Walsgrave Hospital, University Hospitals Coventry and Warwickshire NHS TrustDepartment of Neurology, A5 CorridorClifford Bridge RoadCoventryWarwickshireUKCV2 2DX
| | - Jill Clayton‐Smith
- University of ManchesterInstitute of Human Development6th Floor, Genetic Medicine, St Mary's HospitalOxford RoadManchesterUKM13 9WL
| | - Janette Greenhalgh
- University of LiverpoolLiverpool Reviews and Implementation GroupSherrington BuildingAshton StreetLiverpoolUKL69 3GE
| | - Juliet Hounsome
- University of LiverpoolLiverpool Reviews and Implementation GroupSherrington BuildingAshton StreetLiverpoolUKL69 3GE
| | - Andrew J McKay
- Institute of Child Health, Alder Hey HospitalClinical Trials UnitEaton RoadWest DerbyLiverpoolMerseysideUKL12 2AP
| | - Catrin Tudur Smith
- University of LiverpoolDepartment of BiostatisticsShelley's CottageBrownlow StreetLiverpoolUKL69 3GS
| | - Anthony G Marson
- Institute of Translational Medicine, University of LiverpoolDepartment of Molecular and Clinical PharmacologyClinical Sciences Centre for Research and Education, Lower LaneFazakerleyLiverpoolMerseysideUKL9 7LJ
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Davis AR, Saadatmand HJ, Pack A. Women with epilepsy initiating a progestin IUD: A prospective pilot study of safety and acceptability. Epilepsia 2016; 57:1843-1848. [PMID: 27677612 DOI: 10.1111/epi.13559] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/12/2016] [Indexed: 11/27/2022]
Abstract
OBJECTIVE Effective contraception enables women with epilepsy (WWE) to plan their pregnancies and improve outcomes for themselves and their children. Although popular among all women, complex drug interactions limit the efficacy and safety of oral contraceptives (OCs) for WWE. We sought to explore the safety, acceptability, and pharmacokinetic impact of a progestin-containing intrauterine device (IUD) in WWE. METHODS We enrolled 20 women with well-controlled epilepsy and a stable antiepileptic drug (AED) regimen and who were initiating a progestin-containing IUD (levonorgestrel 52 mg) in a prospective, observational study. For each AED, we compared the trough concentration before IUD insertion to the trough concentration 3 weeks, and 3 and 6 months later. Participants recorded seizures in a daily paper diary. We compared seizures that occurred during the month before IUD insertion to those occurring in the 6 months thereafter. Participants completed an acceptability questionnaire at 3 and 6 months. RESULTS Participants' average age was 28 years; 60% were nulligravid. They reported a history of multiple seizure types. During the baseline month, 75% were seizure-free and the remainder reported between one and three seizures. Fourteen received monotherapy and six received polytherapy. Lamotrigine use was most common (n = 12). AED trough concentrations remained stable during the 6 months after IUD insertion, without clinically meaningful deviations from baseline. Diary data showed that seizure frequency worsened in 3, and remained unchanged in 13 and improved in 4 after IUD insertion. Subjectively, no participant believed the IUD worsened her seizure control. All participants were either somewhat or very satisfied with the IUD throughout the study. All participants continued the IUD use at 6 months. No pregnancies occurred. SIGNIFICANCE This pilot study suggests that the progestin-containing IUD is a safe and acceptable long-acting contraceptive for WWE.
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Affiliation(s)
- Anne R Davis
- Department of Obstetrics and Gynecology, Columbia University Medical Center, New York, New York, U.S.A
| | - Heva J Saadatmand
- Columbia University College of Physicians and Surgeons, New York, New York, U.S.A
| | - Alison Pack
- Department of Neurology, Columbia University Medical Center, New York, New York, U.S.A
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Abstract
Approximately 50% of all pregnancies in women with epilepsy (WWE) occur unplanned. This is worrying, given the increased occurrence of obstetrical complications in WWE, including the risk of seizures and their possible consequences for both the mother and the unborn child. Hormonal contraception is usually regarded as highly effective, but it is subject to numerous bidirectional drug interactions with several antiepileptic drugs. These interactions may lead to loss of seizure control or contraceptive failure. Further concerns are loss of bone mineral density and increased seizure activity due to hormonal effects. Many physicians lack sufficient knowledge regarding these issues, and most WWE have never received adequate counseling. Moreover, several studies show that a large proportion of WWE do not take their medicines regularly. This article reviews all of these issues and offers practical recommendations for the management of contraception in WWE.
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Affiliation(s)
- Arne Reimers
- Department of Clinical Pharmacology, St Olavs University Hospital.,Department of Laboratory Medicine, Children's and Women's Health, Faculty of Medicine, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
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Frankel S, Medvedeva N, Gutherz S, Kulick C, Kondratyev A, Forcelli PA. Comparison of the long-term behavioral effects of neonatal exposure to retigabine or phenobarbital in rats. Epilepsy Behav 2016; 57:34-40. [PMID: 26921596 PMCID: PMC4828307 DOI: 10.1016/j.yebeh.2016.01.018] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 01/15/2016] [Accepted: 01/18/2016] [Indexed: 01/18/2023]
Abstract
Anticonvulsant drugs, when given during vulnerable periods of brain development, can have long-lasting consequences on nervous system function. In rats, the second postnatal week approximately corresponds to the late third trimester of gestation/early infancy in humans. Exposure to phenobarbital during this period has been associated with deficits in learning and memory, anxiety-like behavior, and social behavior, among other domains. Phenobarbital is the most common anticonvulsant drug used in neonatology. Several other drugs, such as lamotrigine, phenytoin, and clonazepam, have also been reported to trigger behavioral changes. A new generation anticonvulsant drug, retigabine, has not previously been evaluated for long-term effects on behavior. Retigabine acts as an activator of KCNQ channels, a mechanism that is unique among anticonvulsants. Here, we examined the effects retigabine exposure from postnatal day (P)7 to P14 on behavior in adult rats. We compared these effects with those produced by phenobarbital (as a positive control) and saline (as a negative control). Motor behavior was assessed by using the open field and rotarod, anxiety-like behavior by the open field, elevated plus maze, and light-dark transition task, and learning/memory by the passive avoidance task; social interactions were assessed in same-treatment pairs, and nociceptive sensitivity was assessed via the tail-flick assay. Motor behavior was unaltered by exposure to either drug. We found that retigabine exposure and phenobarbital exposure both induced increased anxiety-like behavior in adult animals. Phenobarbital, but not retigabine, exposure impaired learning and memory. These drugs also differed in their effects on social behavior, with retigabine-exposed animals displaying greater social interaction than phenobarbital-exposed animals. These results indicate that neonatal retigabine induces a subset of behavioral alterations previously described for other anticonvulsant drugs and extend our knowledge of drug-induced behavioral teratogenesis to a new mechanism of anticonvulsant action.
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Affiliation(s)
- Sari Frankel
- Department of Pharmacology & Physiology, Georgetown University School of Medicine, United States
| | - Natalia Medvedeva
- Department of Pharmacology & Physiology, Georgetown University School of Medicine, United States
| | - Samuel Gutherz
- Department of Pharmacology & Physiology, Georgetown University School of Medicine, United States
| | - Catherine Kulick
- Department of Pharmacology & Physiology, Georgetown University School of Medicine, United States
| | - Alexei Kondratyev
- Department of Pharmacology & Physiology, Georgetown University School of Medicine, United States
| | - Patrick A Forcelli
- Department of Pharmacology & Physiology, Georgetown University School of Medicine, United States.
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Murphy S, Bennett K, Doherty CP. Prescribing trends for sodium valproate in Ireland. Seizure 2016; 36:44-48. [DOI: 10.1016/j.seizure.2016.01.019] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Revised: 01/28/2016] [Accepted: 01/30/2016] [Indexed: 10/22/2022] Open
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Italiano D, Capuano A, Alibrandi A, Ferrara R, Cannata A, Trifirò G, Sultana J, Ferrajolo C, Tari M, Tari DU, Perrotta M, Pagliaro C, Rafaniello C, Spina E, Arcoraci V. Indications of newer and older anti-epileptic drug use: findings from a southern Italian general practice setting from 2005-2011. Br J Clin Pharmacol 2016; 79:1010-9. [PMID: 25556909 DOI: 10.1111/bcp.12577] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Revised: 10/31/2014] [Accepted: 12/22/2014] [Indexed: 12/30/2022] Open
Abstract
AIMS The aim of the study was to analyze the prescribing pattern of both newer and older AEDs. METHODS A population of almost 150 000 individuals registered with 123 general practitioners was included in this study. Patients who received at least one AED prescription over 2005-2011 were identified. The 1 year prevalence and cumulative incidence of AED use, by drug class and individual drug, were calculated over the study period. Potential predictors of starting therapy with newer AEDs were also investigated. RESULTS The prevalence of use per 1000 inhabitants of older AEDs increased from 10.7 (95% CI10.1, 11.2) in 2005 to 13.0 (95% CI12.4, 13.6) in 2011, while the incidence remained stable. Newer AED incidence decreased from 9.4 (95% CI 8.9, 9.9) in 2005 to 7.0 (95% CI 6.6, 7.5) in 2011, with a peak of 15.5 (95% CI 14.8, 16.1) in 2006. Phenobarbital and valproic acid were the most commonly prescribed AEDs as starting therapy for epilepsy. Gabapentin and pregabalin accounted for most new pain-related prescriptions, while valproic acid and lamotrigine were increasingly used for mood disorders. Female gender (OR 1.36, 95% CI 1.20, 1.53), age ranging between 45-54 years (OR 1.39, 95% CI 1.16, 1.66) and pain as an indication (OR 16.7, 95% CI, 13.1, 21.2) were associated with newer AEDs starting therapy. CONCLUSIONS Older AEDs were mainly used for epileptic and mood disorders, while newer drugs were preferred for neuropathic pain. Gender, age, indication of use and year of starting therapy influenced the choice of AED type. The decrease of newer AED use during 2007 is probably related to the restricted reimbursement criteria for gabapentin and pregabalin.
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Affiliation(s)
- Domenico Italiano
- Department of Clinical and Experimental Medicine, University of Messina, Messina
| | - Annalisa Capuano
- Department of Experimental Medicine, Pharmacology Section, Campania Regional Center of Pharmacovigilance and Pharmacoepidemiology, Second University of Naples, Naples
| | - Angela Alibrandi
- Department of Economics, Business, Environmental Science and Quantitative Methodologies, University of Messina, Messina
| | - Rosarita Ferrara
- Department of Clinical and Experimental Medicine, University of Messina, Messina
| | - Angelo Cannata
- Department of Clinical and Experimental Medicine, University of Messina, Messina
| | - Gianluca Trifirò
- Department of Clinical and Experimental Medicine, University of Messina, Messina
| | - Janet Sultana
- Department of Clinical and Experimental Medicine, University of Messina, Messina
| | - Carmen Ferrajolo
- Department of Experimental Medicine, Pharmacology Section, Campania Regional Center of Pharmacovigilance and Pharmacoepidemiology, Second University of Naples, Naples
| | | | | | | | | | - Concita Rafaniello
- Department of Experimental Medicine, Pharmacology Section, Campania Regional Center of Pharmacovigilance and Pharmacoepidemiology, Second University of Naples, Naples
| | - Edoardo Spina
- Department of Clinical and Experimental Medicine, University of Messina, Messina
| | - Vincenzo Arcoraci
- Department of Clinical and Experimental Medicine, University of Messina, Messina
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Herzog AG, Mandle HB, Cahill KE, Fowler KM, Hauser WA, Davis AR. Contraceptive practices of women with epilepsy: Findings of the epilepsy birth control registry. Epilepsia 2016; 57:630-7. [DOI: 10.1111/epi.13320] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/23/2015] [Indexed: 12/01/2022]
Affiliation(s)
- Andrew G. Herzog
- Harvard Neuroendocrine Unit; Beth Israel Deaconess Medical Center; Boston Massachusetts U.S.A
| | - Hannah B. Mandle
- Harvard Neuroendocrine Unit; Beth Israel Deaconess Medical Center; Boston Massachusetts U.S.A
| | - Kaitlyn E. Cahill
- Harvard Neuroendocrine Unit; Beth Israel Deaconess Medical Center; Boston Massachusetts U.S.A
| | - Kristen M. Fowler
- Harvard Neuroendocrine Unit; Beth Israel Deaconess Medical Center; Boston Massachusetts U.S.A
| | - W. Allen Hauser
- Gertrude H. Sergievsky Center; Mailman School of Public Health; Columbia University; New York New York U.S.A
| | - Anne R. Davis
- Department of OBGYN; Columbia University Medical Center; New York New York U.S.A
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Verrotti A, Mencaroni E, Castagnino M, Zaccara G. Foetal safety of old and new antiepileptic drugs. Expert Opin Drug Saf 2015; 14:1563-71. [PMID: 26329145 DOI: 10.1517/14740338.2015.1084288] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
INTRODUCTION Drugs teratogenicity has been studied for many years, especially teratogenic effects of antiepileptic drugs, because of the important impact that epilepsy has always had for young women, but data from literature are often conflicting. AREAS COVERED We have carried out a critical review of all human studies about the antiepileptic drugs teratogenicity. A systematic search was performed in Medline and PubMed up to May 1, 2015. The use of older antiepileptic drugs in pregnancy is associated with an increased risk of fetus malformations; in particular, Valproate can determine neural-tube-like defects; in Phenytoin and Phenobarbital-exposed pregnancies, orofacial clefts, cardiac and genitourinary malformations are the major anomalies described. Spina bifida is the only specific major congenital malformation significantly associated with exposure to Carbamazepine monotherapy Despite the small number of studies on the teratogenic effects of new antiepileptic drugs, the analysis of the literature shows that exposure of the fetus to the new antiepileptic drugs is associated with a lower risk of major congenital malformations compared to the use of older drugs. EXPERT OPINION Where possible, Valproate should be avoided in women of childbearing potential. Results about the safety of newer antiepileptic drugs require validation and further investigation.
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Affiliation(s)
- Alberto Verrotti
- a 1 University of Perugia, Department of Pediatrics , S. Andrea delle Fratte, Perugia, Italy , +39 07 55 78 44 15 ;
| | - Elisabetta Mencaroni
- a 1 University of Perugia, Department of Pediatrics , S. Andrea delle Fratte, Perugia, Italy , +39 07 55 78 44 15 ;
| | - Miriam Castagnino
- a 1 University of Perugia, Department of Pediatrics , S. Andrea delle Fratte, Perugia, Italy , +39 07 55 78 44 15 ;
| | - Gaetano Zaccara
- b 2 Unit of Neurology, Florence Health Authority, Department of Medicine , Florence, Italy
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Abstract
Characteristics of using valproic acid drugs in women, from puberty to menopause period, are reviewed. Based on initial treatment efficacy, type of epileptic seizures and a form of epilepsy, the author emphasizes the practical use of valproates during pregnancy in dependence on the situation. Several scenarios of pregnancy course and possible treatment tactics are presented.
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Affiliation(s)
- P N Vlasov
- Evdokimov Moscow State University of Medical Dentistry, Moscow
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Does in utero exposure of antiepileptic drugs lead to failure to reach full cognitive potential? Seizure 2015; 28:51-6. [DOI: 10.1016/j.seizure.2015.01.019] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2014] [Accepted: 01/22/2015] [Indexed: 02/07/2023] Open
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Wen X, Meador KJ, Hartzema A. Antiepileptic drug use by pregnant women enrolled in Florida Medicaid. Neurology 2015; 84:944-50. [PMID: 25653296 PMCID: PMC4351665 DOI: 10.1212/wnl.0000000000001304] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2014] [Accepted: 11/03/2014] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE The study aims were to investigate secular trends in antiepileptic drug (AED) use in women during pregnancy, and to compare the use of first- and second-generation AEDs. METHODS Study participants consisted of female Florida Medicaid beneficiaries, older than 15 years, and pregnant within the time period 1999 to 2009. Fifteen AEDs were categorized into first and second generation of AEDs. Continuous use of AEDs was defined as at least 2 consecutive AED prescriptions totaling more than a 30-day supply. Polytherapy was defined as 2 or more AEDs continuously used for at least 30 overlapping days. Annual prevalence was estimated and compared. RESULTS We included 2,099 pregnant women who were enrolled in Florida Medicaid from 1999 to 2009 and exposed to AEDs during pregnancy. Although there were fluctuations, overall AED use in the study cohort did not increase from 2000 to 2009 (β ± standard error [SE]: -0.07 ± 0.06, p = 0.31). The use of first-generation AEDs decreased (β ± SE: -6.21 ± 0.47, p < 0.0001), whereas the use of second-generation AEDs increased (β ± SE: 6.27 ± 0.52, p < 0.0001) from 2000 to 2009. AED use in polytherapy did not change through the study period. Valproate use reduced from 23% to 8% in the study population (β ± SE: -1.61 ± 0.36, p = 0.0019), but this decrease was only for women receiving an AED for epilepsy and was not present for other indications. CONCLUSION The second-generation AEDs are replacing first-generation AEDs in both monotherapy and polytherapy. Valproate use has declined for epilepsy but not other indications. Additional changes in AED use are expected in future years.
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Affiliation(s)
- Xuerong Wen
- From the Department of Medicine (X.W.), and Department of Pharmaceutical Outcomes and Policy, College of Pharmacy (A.H.), University of Florida, Gainesville; and Department of Neurology & Neurological Sciences (K.J.M.), Stanford University, CA.
| | - Kimford J Meador
- From the Department of Medicine (X.W.), and Department of Pharmaceutical Outcomes and Policy, College of Pharmacy (A.H.), University of Florida, Gainesville; and Department of Neurology & Neurological Sciences (K.J.M.), Stanford University, CA
| | - Abraham Hartzema
- From the Department of Medicine (X.W.), and Department of Pharmaceutical Outcomes and Policy, College of Pharmacy (A.H.), University of Florida, Gainesville; and Department of Neurology & Neurological Sciences (K.J.M.), Stanford University, CA
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Bromley R, Weston J, Adab N, Greenhalgh J, Sanniti A, McKay AJ, Tudur Smith C, Marson AG. Treatment for epilepsy in pregnancy: neurodevelopmental outcomes in the child. Cochrane Database Syst Rev 2014; 2014:CD010236. [PMID: 25354543 PMCID: PMC7390020 DOI: 10.1002/14651858.cd010236.pub2] [Citation(s) in RCA: 104] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
BACKGROUND Accumulating evidence suggests an association between prenatal exposure to antiepileptic drugs (AEDs) and increased risk of both physical anomalies and neurodevelopmental impairment. Neurodevelopmental impairment is characterised by either a specific deficit or a constellation of deficits across cognitive, motor and social skills and can be transient or continuous into adulthood. It is of paramount importance that these potential risks are identified, minimised and communicated clearly to women with epilepsy. OBJECTIVES To assess the effects of prenatal exposure to commonly prescribed AEDs on neurodevelopmental outcomes in the child and to assess the methodological quality of the evidence. SEARCH METHODS We searched the Cochrane Epilepsy Group Specialized Register (May 2014), Cochrane Central Register of Controlled Trials (CENTRAL) in The Cochrane Library (2014, Issue 4), MEDLINE (via Ovid) (1946 to May 2014), EMBASE (May 2014), Pharmline (May 2014) and Reprotox (May 2014). No language restrictions were imposed. Conference abstracts from the last five years were reviewed along with reference lists from the included studies. SELECTION CRITERIA Prospective cohort controlled studies, cohort studies set within pregnancy registers and randomised controlled trials were selected for inclusion. Participants were women with epilepsy taking AED treatment; the two control groups were women without epilepsy and women with epilepsy who were not taking AEDs during pregnancy. DATA COLLECTION AND ANALYSIS Three authors (RB, JW and JG) independently selected studies for inclusion. Data extraction and risk of bias assessments were completed by five authors (RB, JW, AS, NA, AJM). The primary outcome was global cognitive functioning. Secondary outcomes included deficits in specific cognitive domains or prevalence of neurodevelopmental disorders. Due to substantial variation in study design and outcome reporting only limited data synthesis was possible. MAIN RESULTS Twenty-two prospective cohort studies were included and six registry based studies. Study quality varied. More recent studies tended to be larger and to report individual AED outcomes from blinded assessments, which indicate improved methodological quality.The developmental quotient (DQ) was lower in children exposed to carbamazepine (CBZ) (n = 50) than in children born to women without epilepsy (n = 79); mean difference (MD) of -5.58 (95% confidence interval (CI) -10.83 to -0.34, P = 0.04). The DQ of children exposed to CBZ (n = 163) was also lower compared to children of women with untreated epilepsy (n = 58) (MD -7.22, 95% CI -12.76 to - 1.67, P = 0.01). Further analysis using a random-effects model indicated that these results were due to variability within the studies and that there was no significant association with CBZ. The intelligence quotient (IQ) of older children exposed to CBZ (n = 150) was not lower than that of children born to women without epilepsy (n = 552) (MD -0.03, 95% CI -3.08 to 3.01, P = 0.98). Similarly, children exposed to CBZ (n = 163) were not poorer in terms of IQ in comparison to the children of women with untreated epilepsy (n = 87) (MD 1.84, 95% CI -2.13 to 5.80, P = 0.36). The DQ in children exposed to sodium valproate (VPA) (n = 123) was lower than the DQ in children of women with untreated epilepsy (n = 58) (MD -8.72, 95% -14.31 to -3.14, P = 0.002). The IQ of children exposed to VPA (n = 76) was lower than for children born to women without epilepsy (n = 552) (MD -8.94, 95% CI -11.96 to -5.92, P < 0.00001). Children exposed to VPA (n = 89) also had lower IQ than children born to women with untreated epilepsy (n = 87) (MD -8.17, 95% CI -12.80 to -3.55, P = 0.0005).In terms of drug comparisons, in younger children there was no significant difference in the DQ of children exposed to CBZ (n = 210) versus VPA (n=160) (MD 4.16, 95% CI -0.21 to 8.54, P = 0.06). However, the IQ of children exposed to VPA (n = 112) was significantly lower than for those exposed to CBZ (n = 191) (MD 8.69, 95% CI 5.51 to 11.87, P < 0.00001). The IQ of children exposed to CBZ (n = 78) versus lamotrigine (LTG) (n = 84) was not significantly different (MD -1.62, 95% CI -5.44 to 2.21, P = 0.41). There was no significant difference in the DQ of children exposed to CBZ (n = 172) versus phenytoin (PHT) (n = 87) (MD 3.02, 95% CI -2.41 to 8.46, P = 0.28). The IQ abilities of children exposed to CBZ (n = 75) were not different from the abilities of children exposed to PHT (n = 45) (MD -3.30, 95% CI -7.91 to 1.30, P = 0.16). IQ was significantly lower for children exposed to VPA (n = 74) versus LTG (n = 84) (MD -10.80, 95% CI -14.42 to -7.17, P < 0.00001). DQ was higher in children exposed to PHT (n = 80) versus VPA (n = 108) (MD 7.04, 95% CI 0.44 to 13.65, P = 0.04). Similarly IQ was higher in children exposed to PHT (n = 45) versus VPA (n = 61) (MD 9.25, 95% CI 4.78 to 13.72, P < 0.0001). A dose effect for VPA was reported in six studies, with higher doses (800 to 1000 mg daily or above) associated with a poorer cognitive outcome in the child. We identified no convincing evidence of a dose effect for CBZ, PHT or LTG. Studies not included in the meta-analysis were reported narratively, the majority of which supported the findings of the meta-analyses. AUTHORS' CONCLUSIONS The most important finding is the reduction in IQ in the VPA exposed group, which are sufficient to affect education and occupational outcomes in later life. However, for some women VPA is the most effective drug at controlling seizures. Informed treatment decisions require detailed counselling about these risks at treatment initiation and at pre-conceptual counselling. We have insufficient data about newer AEDs, some of which are commonly prescribed, and further research is required. Most women with epilepsy should continue their medication during pregnancy as uncontrolled seizures also carries a maternal risk.
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Affiliation(s)
- Rebecca Bromley
- Institute of Human Development, University of Manchester, 6th Floor, Genetic Medicine, St Mary's Hospital, Oxford Road, Manchester, UK, M13 9WL
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Tricco AC, Cogo E, Angeliki VA, Soobiah C, Hutton B, Hemmelgarn BR, Moher D, Finkelstein Y, Straus SE. Comparative safety of anti-epileptic drugs among infants and children exposed in utero or during breastfeeding: protocol for a systematic review and network meta-analysis. Syst Rev 2014; 3:68. [PMID: 24964932 PMCID: PMC4086277 DOI: 10.1186/2046-4053-3-68] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Accepted: 06/17/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Epilepsy affects about 1% of the general population. Anti-epileptic drugs (AEDs) prevent or terminate seizures in individuals with epilepsy. Pregnant women with epilepsy may continue taking AEDs. Many of these agents cross the placenta and increase the risk of major congenital malformations, early cognitive and developmental delays, and infant mortality. We aim to evaluate the comparative safety of AEDs approved for chronic use in Canada when administered to pregnant and breastfeeding women and the effects on their infants and children through a systematic review and network meta-analysis. METHODS Studies examining the effects of AEDs administered to pregnant and breastfeeding women regardless of indication (e.g., epilepsy, migraine, pain, psychiatric disorders) on their infants and children will be included. We will include randomized clinical trials (RCTs), quasi-RCTs, non-RCTs, controlled before-after, interrupted time series, cohort, registry, and case-control studies. The main literature search will be executed in MEDLINE, EMBASE, and the Cochrane Central Register of Controlled Trials. We will seek unpublished literature through searches of trial protocol registries and conference abstracts. The literature search results screening, data abstraction, and risk of bias appraisal will be performed by two individuals, independently. Conflicts will be resolved through discussion. The risk of bias of experimental and quasi-experimental studies will be appraised using the Cochrane Effective Practice and Organization of Care Risk-of-Bias tool, methodological quality of observational studies will be appraised using the Newcastle-Ottawa Scale, and quality of reporting of safety outcomes will be conducted using the McMaster Quality Assessment Scale of Harms (McHarm) tool. If feasible and appropriate, we will conduct random effects meta-analysis. Network meta-analysis will be considered for outcomes that fulfill network meta-analysis assumptions.The primary outcome is major congenital malformations (overall and by specific types), while secondary outcomes include fetal loss/miscarriage, minor congenital malformations (overall and by specific types), cognitive development, psychomotor development, small for gestational age, preterm delivery, and neonatal seizures. DISCUSSION Our systematic review will address safety concerns regarding the use of AEDs during pregnancy and breastfeeding. Our results will be useful to healthcare providers, policy-makers, and women of childbearing age who are taking anti-epileptic medications. SYSTEMATIC REVIEW REGISTRATION PROSPERO CRD42014008925.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Sharon E Straus
- Li Ka Shing Knowledge Institute, St, Michael's Hospital, 209 Victoria Street, East Building, Toronto, Ontario M5B 1 T8, Canada.
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Nakken KO, Taubøll E. [Valproate should be avoided in pregnancy]. TIDSSKRIFT FOR DEN NORSKE LEGEFORENING 2014; 134:144-5. [PMID: 24477142 DOI: 10.4045/tidsskr.13.1350] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
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Othman NH, Ab Rahman AF. Obstetric and birth outcomes in pregnant women with epilepsy: A hospital-based study. Ann Indian Acad Neurol 2013; 16:534-7. [PMID: 24339574 PMCID: PMC3841595 DOI: 10.4103/0972-2327.120458] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2012] [Revised: 01/16/2013] [Accepted: 04/24/2013] [Indexed: 11/21/2022] Open
Abstract
Introduction: In addition to changes in seizure frequency, pregnant women with epilepsy (WWE) are at increased risk of complications during pregnancy or delivery. In the absence of a nationwide WWE registry, hospital-based studies may provide important information regarding current management and outcomes in these patients. Objectives: The aims of this study were to determine changes in seizure frequency, and pregnancy and birth outcomes among pregnant WWE. Materials and Methods: We conducted a retrospective review of medical records of pregnant patients with epilepsy, who obtained medical care (from 2006 to 2011) at one of the general hospitals in the North-Eastern State of Malaysia. Data were collected for seizure frequency before and during the pregnancy, concurrent medications, pregnancy complications, and neonatal outcomes. Results: We reviewed records of 25 patients with a total of 33 different pregnancies. All patients were treated with antiepileptic medications during their pregnancies, with 42% monotherapy and 58% polytherapy. Seizure frequency decreased in 5 (15.2%), increased in 18 (54.5%) and unchanged in 10 (30.3%) cases of pregnancies. Pregnancy complications were anemia, gestational diabetes mellitus, gestational hypertension, intrauterine growth retardation, premature rupture of membrane, and vaginal bleeding. Preterm deliveries were recorded in 11 (33.3%) infants. Conclusion: In our setting, many patients were being on polytherapy during their pregnancies. This underscores the need for planned pregnancies so that antiepileptic medications can be optimized prior to pregnancy.
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Affiliation(s)
- Noor Haslina Othman
- Department of Pharmacy, Hospital Raja Perempuan Zainab II, Jalan Hospital, 15586 Kota Bharu, Malaysia
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Åberg E, Holst S, Neagu A, Ögren SO, Lavebratt C. Prenatal exposure to carbamazepine reduces hippocampal and cortical neuronal cell population in new-born and young mice without detectable effects on learning and memory. PLoS One 2013; 8:e80497. [PMID: 24244693 PMCID: PMC3828387 DOI: 10.1371/journal.pone.0080497] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2012] [Accepted: 10/14/2013] [Indexed: 12/21/2022] Open
Abstract
Pregnant women with epilepsy have to balance maternal and fetal risks associated with uncontrolled seizures against the potential teratogenic effects from antiepileptic drugs (AEDs). Carbamazepine (CBZ) is among the four most commonly used AEDs for treatment of pregnant epileptic women. We previously reported that new-born children had a decreased head circumference after in utero CBZ exposure. This study investigates how prenatal exposure of CBZ influences the number of neurons in new-born and young mouse hippocampus, amygdala and cortex cerebri. Clinical studies describe inconclusive results on if prenatal CBZ treatment influences cognition. Here we investigate this issue in mice using two well characterized cognitive tasks, the passive avoidance test and the Morris water maze test. Prenatal exposure of CBZ reduced the number of neurons (NeuN-immunoreactive cells) in the new-born mouse hippocampus with 50% compared to non-exposed mice. A reduction of neurons (20%) in hippocampus was still observed when the animals were 5 weeks old. These mice also displayed a 25% reduction of neurons in cortex cerebri. Prenatal CBZ treatment did not significantly impair learning and memory measured in the passive avoidance test and in the Morris water maze. However, these mice displayed a higher degree of thigmotaxic behaviour than the control mice. The body weight of prenatally CBZ exposed five-week old mice were lower compared to control mice not exposed to CBZ (p = 0.001). In conclusion, prenatal exposure to CBZ reduces the number of neurons dramatically in areas important for cognition such as hippocampus and cortex, without severe impairments on learning and memory. These results are in line with some clinical studies, reporting that CBZ has minor negative effects on cognition. The challenge for future studies are to segment out what possible effects a reduction of neurons could have on different types of cognition, like intellectual ability and social interaction.
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Affiliation(s)
- Elin Åberg
- Neurogenetics Unit, Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden and Center for Molecular Medicine, Karolinska University Hospital, Stockholm, Sweden
- * E-mail:
| | - Sarah Holst
- Department of Neuroscience, Karolinska Institute, Stockholm, Sweden
| | - Alexandru Neagu
- Neurogenetics Unit, Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden and Center for Molecular Medicine, Karolinska University Hospital, Stockholm, Sweden
| | - Sven Ove Ögren
- Department of Neuroscience, Karolinska Institute, Stockholm, Sweden
| | - Catharina Lavebratt
- Neurogenetics Unit, Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden and Center for Molecular Medicine, Karolinska University Hospital, Stockholm, Sweden
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Adedinsewo DA, Thurman DJ, Luo YH, Williamson RS, Odewole OA, Oakley GP. Valproate prescriptions for nonepilepsy disorders in reproductive-age women. ACTA ACUST UNITED AC 2013; 97:403-8. [DOI: 10.1002/bdra.23147] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2013] [Revised: 04/10/2013] [Accepted: 04/12/2013] [Indexed: 12/20/2022]
Affiliation(s)
| | - David J. Thurman
- National Center for Chronic Disease Prevention and Health Promotion; Centers for Disease Control and Prevention; Atlanta; Georgia
| | - Yao-Hua Luo
- National Center for Chronic Disease Prevention and Health Promotion; Centers for Disease Control and Prevention; Atlanta; Georgia
| | - Rebecca S. Williamson
- Department of Epidemiology; Emory University Rollins School of Public Health; Atlanta; Georgia
| | - Oluwaseun A. Odewole
- Division of Nuclear Medicine and Molecular Imaging; Department of Radiology; Emory University Hospital; Atlanta; Georgia
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Trinka E. Ideal characteristics of an antiepileptic drug: how do these impact treatment decisions for individual patients? Acta Neurol Scand 2013:10-8. [PMID: 23106521 DOI: 10.1111/ane.12015] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Effective management of epilepsy requires a holistic approach that takes into account the needs of the individual patient. Antiepileptic drug (AED) treatment must therefore look beyond efficacy to ensure that the patient's overall health status and quality of life (QoL) are optimized. Because the primary objective of AED treatment is to control seizures over the long term, the ideal AED should, first and foremost, demonstrate sustained efficacy and favourable tolerability. In addition, it should have a broad spectrum of activity; its pharmacokinetic profile should be stable and predictable and allow the option of once-daily dosing; and it should not interact with other medications and concomitant AEDs. Because the efficacy of first-line AEDs is broadly comparable, choice of treatment should be based on the individual patient's specific clinical characteristics. In particular, the primary and secondary prevention of comorbid conditions should be taken into consideration, because this can reduce the risk of mortality and improve health outcomes and QoL. Treatment selection must also take into account the patient's particular lifestyle and priorities, to maximize the likelihood of long-term treatment adherence. Advances in genetic testing may help inform choice of treatment - not only by elucidating a patient's underlying aetiology, but also by helping to avoid unnecessary side effects. Although certain patient populations (e.g. women of childbearing potential, adolescents, the elderly) require particular consideration when choosing the most appropriate treatment, every patient's unique clinical characteristics and personal circumstances must be taken into account to ensure treatment success and optimize their QoL.
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Affiliation(s)
- E. Trinka
- Department of Neurology; Paracelsus Medical University; Christian Doppler Klinik; Salzburg; Austria
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Chiu CT, Wang Z, Hunsberger JG, Chuang DM. Therapeutic potential of mood stabilizers lithium and valproic acid: beyond bipolar disorder. Pharmacol Rev 2013; 65:105-42. [PMID: 23300133 PMCID: PMC3565922 DOI: 10.1124/pr.111.005512] [Citation(s) in RCA: 282] [Impact Index Per Article: 25.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The mood stabilizers lithium and valproic acid (VPA) are traditionally used to treat bipolar disorder (BD), a severe mental illness arising from complex interactions between genes and environment that drive deficits in cellular plasticity and resiliency. The therapeutic potential of these drugs in other central nervous system diseases is also gaining support. This article reviews the various mechanisms of action of lithium and VPA gleaned from cellular and animal models of neurologic, neurodegenerative, and neuropsychiatric disorders. Clinical evidence is included when available to provide a comprehensive perspective of the field and to acknowledge some of the limitations of these treatments. First, the review describes how action at these drugs' primary targets--glycogen synthase kinase-3 for lithium and histone deacetylases for VPA--induces the transcription and expression of neurotrophic, angiogenic, and neuroprotective proteins. Cell survival signaling cascades, oxidative stress pathways, and protein quality control mechanisms may further underlie lithium and VPA's beneficial actions. The ability of cotreatment to augment neuroprotection and enhance stem cell homing and migration is also discussed, as are microRNAs as new therapeutic targets. Finally, preclinical findings have shown that the neuroprotective benefits of these agents facilitate anti-inflammation, angiogenesis, neurogenesis, blood-brain barrier integrity, and disease-specific neuroprotection. These mechanisms can be compared with dysregulated disease mechanisms to suggest core cellular and molecular disturbances identifiable by specific risk biomarkers. Future clinical endeavors are warranted to determine the therapeutic potential of lithium and VPA across the spectrum of central nervous system diseases, with particular emphasis on a personalized medicine approach toward treating these disorders.
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Affiliation(s)
- Chi-Tso Chiu
- Molecular Neurobiology Section, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland, USA
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Man SL, Petersen I, Thompson M, Nazareth I. Antiepileptic drugs during pregnancy in primary care: a UK population based study. PLoS One 2012; 7:e52339. [PMID: 23272239 PMCID: PMC3525559 DOI: 10.1371/journal.pone.0052339] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2012] [Accepted: 11/16/2012] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVE Antiepileptic drugs (AEDs) are commonly prescribed for epilepsy and bipolar disorder but little is known about their use in pregnancy. We examined secular trends in AED prescribing in pregnancy and pregnancy as a determinant for stopping AED prescribing. METHODS We identified 174,055 pregnancies from The Health Improvement Network UK primary care database. Secular trends in AED prescribing during pregnancy were examined between 1994 and 2009. We used Cox's regression analyses to compare time to discontinuation of AED prescriptions between pregnant and non-pregnant women and to identify predictors of discontinuation of AEDs in pregnancy. RESULTS Prescribing of carbamazepine and sodium valproate have declined since 1994 despite being the most commonly prescribed AEDs in pregnancy up to 2004. Prescribing of lamotrigine in pregnancy has steadily increased and has been the most popular AED prescribed in pregnancy since 2004. Pregnant women with epilepsy were twice as likely to stop receiving AEDs (Hazard Ratio (HR) 2.00, 95% Confidence Interval (CI) 1.62-2.47) when compared to non-pregnant women and for women with bipolar disorder this was even higher (HR 3.07, 95% CI 2.04-4.62). For pregnant women with epilepsy, those receiving AEDs less regularly before pregnancy were more likely to stop receiving AEDs in pregnancy. CONCLUSIONS Lamotrigine has been increasingly prescribed in pregnancy over older AEDs namely carbamazepine and sodium valproate. Pregnancy is a strong determinant for the discontinuation of AED prescribing particularly for women with bipolar disorder.
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Affiliation(s)
- Shuk-Li Man
- Research Department of Primary Care and Population Health, University College London, London, United Kingdom.
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