Document Detail


Retigabine for the Adjunctive Treatment of Adults with Partial-Onset Seizures in Epilepsy with and without Secondary Generalization : A NICE Single Technology Appraisal.
MedLine Citation:
PMID:  23341194     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The National Institute for Health and Clinical Excellence (NICE) invited the manufacturer of retigabine (GlaxoSmithKline) to submit evidence for the clinical and cost effectiveness of this drug for the treatment of adults with partial-onset seizures in epilepsy, with and without secondary generalization, as part of the Institute's single technology appraisal (STA) process. The Centre for Reviews and Dissemination was commissioned to act as the Evidence Review Group (ERG). The ERG undertakes a critical review of the clinical and cost-effectiveness evidence of the technology based upon the manufacturer's submission to NICE. The ERG also independently searches for relevant evidence and evaluates modifications to the manufacturer's decision-analytic model. This paper provides a description of the company submission, the ERG review and NICE's subsequent decisions. The clinical effectiveness data were derived from three placebo-controlled randomized controlled trials (RCTs). A meta-analysis pooling across all doses of retigabine found beneficial effects of retigabine in terms of responder rate (odds ratio [OR] 2.79; 95 % CI 2.08, 3.76) and rate of seizure freedom (OR 2.54; 95 % CI 0.92, 6.98) [both double-blind phase analyses]. When compared in a network meta-analysis with the selected comparator antiepileptic drugs (AEDs) [eslicarbazepine acetate, lacosamide, pregabalin, tiagabine and zonisamide], retigabine offered broadly similar efficacy in terms of responder rate and freedom from seizure. The de novo decision-analytic model presented within the submission evaluated the cost effectiveness of retigabine compared with these AEDs and no treatment (i.e. maintenance therapy). After numerous additional analyses, the ERG considered the use of retigabine to be not cost effective for NICE at thresholds below £43,000 if no treatment was considered a relevant comparator. The NICE Appraisal Committee decided that an appropriate comparator was an active treatment. The Committee recommended that retigabine is offered as an option for the adjunctive treatment of partial-onset seizures with or without secondary generalization in adults aged 18 years and older with epilepsy, only when previous treatment with carbamazepine, clobazam, gabapentin, lamotrigine, levetiracetam, oxcarbazepine, sodium valproate and topiramate has not provided an adequate response, or has not been tolerated.
Authors:
Dawn Craig; Stephen Rice; Fiona Paton; David Fox; Nerys Woolacott
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-23
Journal Detail:
Title:  PharmacoEconomics     Volume:  -     ISSN:  1179-2027     ISO Abbreviation:  Pharmacoeconomics     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-23     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9212404     Medline TA:  Pharmacoeconomics     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Centre for Reviews and Dissemination, University of York, Heslington, York, YO10 5DD, UK, dawn.craig@york.ac.uk.
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