Cochrane for Clinicians
Putting Evidence into Practice
Antiepileptic Drug Monotherapy for Epilepsy
Am Fam Physician. 2018 May 1;97(9):572-573.
Author disclosure: No relevant financial affiliations.
Which is the best antiepileptic drug monotherapy for adults and children with epilepsy?
In patients with partial-onset (focal) seizures, levetiracetam (Keppra), lamotrigine (Lamictal), and carbamazepine (Tegretol) were associated with the longest time to treatment withdrawal (i.e., the recommended patient-oriented outcome measure that balances tolerability with effectiveness). In patients with generalized seizure disorder, valproic acid (Depakene) was associated with the longest time to treatment withdrawal.1 (Strength of Recommendation: A, based on consistent patient-oriented evidence.)
Approximately 1.2% of the U.S. population has active epilepsy, including 3 million adults and 470,000 children.2 Up to 70% of patients with epilepsy will attain remission with appropriate treatment, the majority with antiepileptic drug monotherapy.3,4 This analysis compared the effectiveness of 10 monotherapy antiepileptic drugs: carbamazepine, gabapentin (Neurontin), lamotrigine, levetiracetam, oxcarbazepine (Trileptal), phenobarbital, phenytoin (Dilantin), valproic acid, topiramate (Topamax), and zonisamide (Zonegran).
This Cochrane review included 36 randomized controlled trials with 12,391 patients. Patients of all ages were pooled for analyses; approximately 67% had partial-onset seizures, 25% had generalized-onset seizures, and 9% had unclassified seizures.1 The primary outcome was time to withdrawal of allocated treatment, with longer time to withdrawal indicating more successful therapy. Secondary outcomes were six- and 12-month remission of seizures, time to first seizure post-randomization, and treatment-related adverse effects. Outcomes were presented as Cox proportional hazard ratios (HRs), with HRs less than 1.0 being better and HRs greater than 1.0 being worse when compared with control drugs.1
In patients being treated for partial seizures, lamotrigine (HR = 0.75; 95% confidence interval [CI], 0.65 to 0.86) and levetiracetam (HR =
The practice recommendations in this activity are available at http://www.cochrane.org/CD011412.
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Referencesshow all references
1. Nevitt SJ, Sudell M, Weston J, Tudur Smith C, Marson AG. Antiepileptic drug monotherapy for epilepsy: a network meta-analysis of individual participant data. Cochrane Database Syst Rev. 2017;(12):CD011412....
2. Centers for Disease Control and Prevention. Epilepsy. Data and statistics. Updated January 17, 2018. https://www.cdc.gov/epilepsy/data/index.html. Accessed April 2, 2018.
3. Liu G, Slater N, Perkins A. Epilepsy: treatment options. Am Fam Physician. 2017;96(2):87–96.
4. Manford M. Recent advances in epilepsy. J Neurol. 2017;264(8):1811–1824.
5. National Institute for Health and Care Excellence. Epilepsies: diagnosis and management. Clinical guideline 137. Updated February 2016. https://www.nice.org.uk/guidance/cg137. Accessed April 2, 2018.
These are summaries of reviews from the Cochrane Library.
This series is coordinated by Corey D. Fogleman, MD, Assistant Medical Editor.
A collection of Cochrane for Clinicians published in AFP is available at https://www.aafp.org/afp/cochrane.
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