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Perampanel in routine clinical use across Europe: Pooled, multicenter, observational data

Artikel i vetenskaplig tidskrift
Författare A. Rohracher
G. Zimmermann
V. Villanueva
I. Garamendi
J. W. Sander
T. Wehner
R. Shankar
Elinor Ben-Menachem
M. J. Brodie
M. C. Pensel
G. Di Gennaro
A. Maurousset
A. Strzelczyk
S. Rheims
A. Rácz
K. Menzler
V. Bertol-Alegre
I. García-Morales
F. J. López-González
M. Toledo
K. J. Carpenter
E. Trinka
Publicerad i Epilepsia
Volym 59
Nummer/häfte 9
Sidor 1727-1739
Publiceringsår 2018
Publicerad vid Institutionen för neurovetenskap och fysiologi
Sidor 1727-1739
Språk en
Länkar dx.doi.org/10.1111/epi.14520
Ämneskategorier Klinisk medicin

Sammanfattning

Objective To pool observational data on the routine use of perampanel to obtain information on real‐world outcomes and data in populations typically underrepresented in clinical trials. Methods Individual‐level data of people with epilepsy treated with perampanel at 45 European centers were merged into a single dataset. Prespecified outcomes were: 1‐year retention rate, 1‐year seizure freedom rate (duration ≥6 months), and incidence of treatment‐emergent adverse events (TEAEs). In addition, relationships were explored with logistic regression analyses. Results The full analysis set comprised 2396 people: 95% had focal seizures; median epilepsy duration was 27 years; median number of concomitant antiepileptic drugs (AEDs) was 2; and median prior AEDs was 6. One‐year retention rate was 48% (1117/2332; 95% confidence interval [CI] 46‐50%), and 1‐year seizure‐free rate (≥6‐month duration) was 9.2% (74/803; 95% CI 7‐11%). Median treatment duration was 11.3 months (1832 patient‐years); median dose was 8 mg. In 388 individuals with available data at 3, 6, and 12 months, responder rates were 42%, 46%, and 39%, respectively. During the first year, TEAEs were reported in 68% of participants (1317/1497; 95% CI 66‐70%). Logistic regression found higher age at perampanel initiation was associated with higher seizure‐free rate, and higher number of prior AEDs with lower seizure‐free rate and lower rates of somatic TEAEs. In 135 individuals aged ≥65 years, 1‐year retention rate was 48% and seizure‐free rate was 28%. Significance Across a large, treatment‐resistant population, add‐on perampanel was retained for ≥1 year by 48% of individuals, and 9% were seizure‐free for ≥6 months. TEAEs were in line with previous reports in routine clinical use, and less frequent than in the clinical trial setting. No new or unexpected TEAEs were seen. Despite the limitations of observational studies, our data indicate that some individuals may derive a marked benefit from the use of perampanel.

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