Evidence map›Paper›PMID 26519545›Full record

ReviewNeurology2016

Developmental effects of antiepileptic drugs and the need for improved regulations.

Kimford J Meador, David W Loring

Open access · bronzeAbstract readReview
In one paragraph

Review in Neurology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed, 1 pooled it
20.7field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

43 citing papers in PubMed, 1 synthesis or guideline pooled it, 112 citations in OpenAlex.

  1. Pooled it
  2. Evaluation of the management of high-risk obstetric patients living with epilepsy: A retrospective study from KwaZulu-Natal, South Africa.South African family practice : official journal of the South African Academy of Family Practice/Primary Care · 2026
    Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. The use of antiepileptic drugs and their effects in pregnancy.Turkish journal of medical sciences · 2025
    Article
  8. Mechanisms of neurodevelopmental toxicity of topiramate.Critical reviews in toxicology · 2024
    Review
  9. Article
  10. Article
  11. Article
  12. Observational
  13. Observational
  14. Article
  15. Article
  16. Review
  17. Article
  18. Review
  19. Review
  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors at 1 institution in 1 country.

Kimford J MeadorFrom the Department of Neurology and Neurological Sciences (K.J.M.), Stanford University, CA; and the Departments of Neurology and Pediatrics (D.W.L.), Emory University, Atlanta, GA. kmeador@stanford.edu.
David W LoringFrom the Department of Neurology and Neurological Sciences (K.J.M.), Stanford University, CA; and the Departments of Neurology and Pediatrics (D.W.L.), Emory University, Atlanta, GA.
Emory University · US

Funding

Maternal Outcomes and Neurodevelopmental Effects of Antiepileptic Drugs (MONEAD)U01NS038455 · NINDS · STANFORD UNIVERSITY · PI MATTHEWS, ABIGAIL GOREN, MEADOR, KIMFORD J · 2012 to 2022
$27.7M
Dissecting the Cognitive Roles of Hippocampus, Other Temporal Lobe StructuresR01NS088748 · NINDS · EMORY UNIVERSITY · PI DRANE, DANIEL L · 2014 to 2024
$6.4M
PRESURGICAL APPLICATIONS OF FUNCTIONAL MRI IN EPILEPSYR01NS035929 · NINDS · MEDICAL COLLEGE OF WISCONSIN · PI BINDER, JEFFREY R · 1997 to 2015
$4.9M
Characterizing and Predicting Drug Effects on CognitionR01NS076665 · NINDS · UNIVERSITY OF MINNESOTA · PI MARINO, SUSAN E · 2012 to 2016
$2.7M
NINDS NIH HHS 2U01-NS038455NINDS NIH HHS 5R01NS035929NINDS NIH HHS R01 NS076665NINDS NIH HHS R01NS088748NINDS NIH HHS U01 NS038455
6 · The paper itself

Abstract

Antiepileptic drugs (AEDs) are among the most common teratogenic drugs prescribed to women of childbearing age. AEDs can induce both anatomical (malformations) and behavioral (cognitive/behavioral deficits) teratogenicity. Only in the last decade have we begun to truly discriminate differential AED developmental effects. Fetal valproate exposure carries a special risk for both anatomical and behavioral teratogenic abnormalities, but the mechanisms and reasons for individual variability are unknown. Intermediate anatomical risks exist for phenobarbital and topiramate. Several AEDs (e.g., lamotrigine and levetiracetam) appear to possess low risks for both anatomical and behavioral teratogenesis. Despite advances in the past decade, our knowledge of the teratogenic risks for most AEDs and the underlying mechanisms remain inadequate. Further, the long-term effects of AEDs in neonates and older children remain uncertain. The pace of progress is slow given the lifelong consequences of diminished developmental outcomes, exposing children unnecessarily to potential adverse effects. It is imperative that new approaches be employed to determine risks more expediently. Our recommendations include a national reporting system for congenital malformations, federal funding of the North American AED Pregnancy Registry, routine meta-analyses of cohort studies to detect teratogenic signals, monitoring of AED prescription practices for women, routine preclinical testing of all new AEDs for neurodevelopmental effects, more specific Food and Drug Administration requirements to establish differential AED cognitive effects in children, and improved funding of basic and clinical research to fully delineate risks and underlying mechanisms for AED-induced anatomical and behavioral teratogenesis.

Indexed as

Abnormalities, Drug-InducedAnimalsAnticonvulsantsAutism Spectrum DisorderCognition DisordersFemaleFetal DiseasesHumansInfant, NewbornInfant, Newborn, DiseasesPregnancyTeratogensUnited StatesUnited States Government AgenciesAnticonvulsantsTeratogens

Identifiers

PMID26519545
PMCPMC4733155
OpenAlexW2306843755

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.