Adjunctive treatment of PGTC seizures in patients 12 years of age and older.

  • 80% of patients were treated with 1 or 2 AEDs at baseline2
  • 6 most commonly used concomitant AEDs at baseline: valproic acid/ergenyl chrono, lamotrigine, levetiracetam, topiramate, zonisamide2,3,†



*Median percent change in PGTC seizure frequency during the treatment period as compared with the baseline period.

AEDs at baseline: valproic acid/ergenyl chrono, lamotrigine, levetiracetam, topiramate, zonisamide, clonazepam, carbamazepine, phenytoin, phenobarbital, clobazam, ethosuximide, oxcarbazepine, lacosamide, gabapentin, lorazepam, acetazolamide, clorazepic acid, mesuximide, sultiame, and tiagabine.

Full analysis set.

  • Responder rate is defined as the percentage of patients experiencing a 50% or greater reduction in PGTC seizure frequency from baseline

Proportion of patients exhibiting PGTC SEIZURE FREQUENCY REDUCTION with FYCOMPA®1-3

31% (n=25) of patients taking FYCOMPA experienced PGTC SEIZURE FREEDOM in the 13-week maintenance phase of the trial vs placebo (12%; n=10)2,3

LIMITATIONS2:

  • Prespecified exploratory endpoint not adjusted for multiple comparisons

PRIMARY GENERALIZED TONIC-CLONIC SEIZURES:

LONG-TERM OPEN-LABEL EXTENSION (OLEx) of the Phase III clinical trial 

PGTC OLEx Study Design3
  • Objective: To report the long-term efficacy, safety, and tolerability outcomes for FYCOMPA in an OLEx of the Phase III pivotal trial in patients with drug-resistant primary generalized tonic-clonic seizures in idiopathic generalized epilepsy
  • 138 patients aged 12 years who completed the 17-week double-blind treatment phase
  • FYCOMPA was titrated over 6 weeks to a dose of up to 12 mg/day


PRIMARY GENERALIZED TONIC-CLONIC SEIZURE OLEx:

Long-term PGTC SEIZURE FREQUENCY reduction3

LIMITATIONS3:

  • Study design was open-label and did not include a control arm
  • Potential confounders, including changes in background AEDs and the potential association between treatment duration and different tolerability, could have influenced study results

SEIZURE FREEDOM: 30% of patients in the long-term OLEx were free of primary generalized tonic-clonic seizures for at least 12 months3

53% of patients in the OLEx maintained primary generalized tonic-clonic seizure freedom for 6 months (n=73/138)

*To be considered seizure-free, patients must not have experienced a primary generalized tonic-clonic seizure for at least 12 months.

OLEx LIMITATIONS3:

  • Study design was open-label and did not include a control arm
  • Potential confounders, including changes in background AEDs and the potential association between treatment duration and different tolerability, could have influenced study results

CONSISTENT RATES of primary generalized tonic-clonic seizure freedom2,3

53% of patients in the OLEx maintained primary generalized tonic-clonic seizure freedom for 6 months (n=73/138)


*During the 13-week maintenance phase in an exploratory analysis of a pivotal trial.

To be considered seizure-free, patients must not have experienced a primary generalized tonic-clonic seizure for at least 12 months.

*During the 13-week maintenance phase in an exploratory analysis of a pivotal trial.

To be considered seizure-free, patients must not have experienced a primary generalized tonic-clonic seizure for at least 12 months.

OLEx LIMITATIONS3:

  • Study design was open-label and did not include a control arm
  • Potential confounders, including changes in background AEDs and the potential association between treatment duration and different tolerability, could have influenced study results

1 in 3 patients were convulsive seizure free2

LIMITATIONS:

  • These exploratory analyses were not adjusted for multiplicity and not adequately powered to show statistical significance. The open-label extension studies did not include a control arm.

*Analysis included patients who experienced this seizure type during the baseline period. Seizure freedom during maintenance period in patients who completed the Phase III clinical trial maintenance phase (N=489); includes 2 mg dose (Study 3).

Post-hoc exploratory analysis.

To be considered seizure free, patients must not have experienced a secondarily generalized seizure for a full year.

§Prespecified exploratory analysis.

PHASE 3 STUDY DESIGN

Multicenter, randomized, double-blind, placebo-controlled, parallel-group study on effectiveness of FYCOMPA as adjunctive therapy in patients 12 years of age and older. The total treatment period was 17 weeks (4: titration; 13: maintenance). Inclusion criteria included taking 1 to 3 concomitant AEDs at baseline and 3 PGTC seizures experienced in 8-week baseline period.1


PHASE 3 BASELINE PATIENT CHARACTERISTICS

  • 6 most commonly used concomitant AEDs at baseline: valproic acid/ergenyl chrono, lamotrigine, levetiracetam, topiramate, zonisamide2,*

MEDIAN BASELINE PGTC SEIZURE FREQUENCY PER 28 DAYS: Placebo=2.5; FYCOMPA=2.62,‡

*AEDs at baseline: valproic acid/ergenyl chrono, lamotrigine, levetiracetam, topiramate, zonisamide, clonazepam, carbamazepine, phenytoin, phenobarbital, clobazam, ethosuximide, oxcarbazepine, lacosamide, gabapentin, lorazepam, acetazolamide, clorazepic acid, mesuximide, sultiame, and tiagabine.

Safety analysis set.

Full analysis set.


PHASE 3 BASELINE AEDs

  • 80% of patients were treated with 1 or 2 AEDs at baseline2
  • 6 most commonly used concomitant AEDs at baseline: valproic acid/ergenyl chrono, lamotrigine, levetiracetam, topiramate, zonisamide2,*

*AEDs at baseline: valproic acid/ergenyl chrono, lamotrigine, levetiracetam, topiramate, zonisamide, clonazepam, carbamazepine, phenytoin, phenobarbital, clobazam, ethosuximide, oxcarbazepine, lacosamide, gabapentin, lorazepam, acetazolamide, clorazepic acid, mesuximide, sultiame, and tiagabine.

Safety analysis set.

The frequency distribution of the number of AEDs taken was similar for the placebo and FYCOMPA treatment groups.


CONCOMITANT AEDs IN THE OLEx

Note: Valproic acid includes ergenyl chrono.

  • Patients were on 1 to 3 concomitant AEDs
  • At double-blind baseline, 48 (34.8%) patients were taking 1 concomitant AED, 61 (44.2%) were taking 2 AEDs, and 28 (20.3%) were taking 3 AEDs
  • Concomitant AEDs could be modified at the investigator’s discretion during the OLEx

REASONS FOR DISCONTINUATION IN THE OLEx

*Including patient choice (n=4) and inadequate efficacy (n=4).

RETENTION RATES IN THE OLEx

Retention rate is defined as the number of patients on treatment for at least x years/the number of patients who could have been on treatment for at least x years; 1 year was defined as 52 weeks. *Safety analysis set.
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REFERENCES: 1. FYCOMPA US Prescribing Information. Woodcliff Lake, NJ: Eisai Inc. 2. French JA, Krauss GL, Wechsler RT, et al. Perampanel for tonic-clonic seizures in idiopathic generalized epilepsy: a randomized trial. Neurology. 2015;85(11):950-957. 3. Data on file. Eisai Inc., Woodcliff Lake, NJ. 4. Krauss GL, Perucca E, Kwan P, et al. Final safety, tolerability, and seizure outcomes in patients with focal epilepsy treated with adjunctive perampanel for up to 4 years in an open-label extension of phase III randomized trials: Study 307. Epilepsia. 2018;59(4):866-876.

IMPORTANT SAFETY INFORMATION AND INDICATION

WARNING: SERIOUS PSYCHIATRIC AND BEHAVIORAL REACTIONS

  • Serious or life-threatening psychiatric and behavioral adverse reactions including aggression, hostility, irritability, anger, and homicidal ideation and threats have been reported in patients taking FYCOMPA
  • These reactions occurred in patients with and without prior psychiatric history, prior aggressive behavior, or concomitant use of medications associated with hostility and aggression
  • Advise patients and caregivers to contact a healthcare provider immediately if any of these reactions or changes in mood, behavior, or personality that are not typical for the patient are observed while taking FYCOMPA or after discontinuing FYCOMPA
  • Closely monitor patients particularly during the titration period and at higher doses
  • FYCOMPA should be reduced if these symptoms occur and should be discontinued immediately if symptoms are severe or are worsening

SERIOUS PSYCHIATRIC AND BEHAVIORAL REACTIONS

In the partial-onset seizures clinical trials, hostility- and aggression-related adverse reactions occurred in 12% and 20% of patients randomized to receive FYCOMPA at doses of 8 mg and 12 mg per day, respectively, compared to 6% of patients in the placebo group. These effects were dose-related and generally appeared within the first 6 weeks of treatment, although new events continued to be observed through more than 37 weeks. These effects in FYCOMPA-treated patients led to dose reduction, interruption, and discontinuation more frequently than placebo-treated patients. Homicidal ideation and/or threat have also been reported postmarketing in patients treated with FYCOMPA. The combination of alcohol and FYCOMPA significantly worsened mood and increased anger. Patients taking FYCOMPA should avoid the use of alcohol. Patients, their caregivers, and families should be informed that FYCOMPA may increase the risk of psychiatric events. Patients should be monitored during treatment and for at least one month after the last dose of FYCOMPA, and especially when taking higher doses and during the initial few weeks of drug therapy (titration period) or at other times of dose increases. Similar serious psychiatric and behavioral events were observed in the primary generalized tonic-clonic (PGTC) seizure clinical trial.

SUICIDAL BEHAVIOR AND IDEATION

Antiepileptic drugs (AEDs), including FYCOMPA, increase the risk of suicidal thoughts or behavior in patients. Anyone considering prescribing FYCOMPA or any other AED must balance the risk of suicidal thoughts or behavior with the risk of untreated illness. Epilepsy and many other illnesses for which AEDs are prescribed are themselves associated with morbidity and mortality and an increased risk of suicidal thoughts and behavior. Patients, their caregivers, and families should be informed of the risk and advised to monitor and immediately report the emergence or worsening of depression, suicidal thoughts or behavior, thoughts about self-harm and/or any unusual changes in mood or behavior. Should suicidal thoughts and behavior emerge during treatment, consider whether the emergence of these symptoms in any given patient may be related to the illness being treated.

DIZZINESS AND GAIT DISTURBANCE

FYCOMPA caused dose-related increases in events related to dizziness and disturbance in gait or coordination. Dizziness and vertigo were reported in 35% and 47% of patients in the partial-onset seizure trials randomized to receive FYCOMPA at doses of 8 mg and 12 mg per day, respectively, compared to 10% of placebo-treated patients. Gait disturbance related events were reported in 12% and 16% of patients in the partial-onset seizure clinical trials randomized to receive FYCOMPA at doses of 8 mg and 12 mg per day, respectively, compared to 2% of placebo-treated patients. These adverse reactions occurred mostly during the titration phase. These adverse reactions were also observed in the PGTC seizure clinical trial.

SOMNOLENCE AND FATIGUE

FYCOMPA caused dose-dependent increases in somnolence and fatigue-related events. Somnolence was reported in 16% and 18% of patients in the partial-onset seizure trials randomized to receive FYCOMPA at doses of 8 mg and 12 mg per day, respectively, compared to 7% of placebo-treated patients. Fatigue-related events were reported in 12% and 15% of patients in the partial-onset seizure trials randomized to receive FYCOMPA at doses of 8 mg and 12 mg per day, respectively, compared to 5% of placebo-treated patients. These adverse reactions occurred mostly during the titration phase. These adverse reactions were also observed in the PGTC seizure clinical trial. Patients should be advised against engaging in hazardous activities requiring mental alertness, such as operating motor vehicles or dangerous machinery, until the effect of FYCOMPA is known. Patients should be carefully observed for signs of central nervous system (CNS) depression when FYCOMPA is used with other drugs with sedative properties because of potential additive effects.

FALLS

Falls were reported in 5% and 10% of patients in the partial-onset seizure clinical trials randomized to receive FYCOMPA at doses of 8 mg and 12 mg per day, respectively, compared to 3% of placebo-treated patients.

DRUG REACTION WITH EOSINOPHILIA AND SYSTEMIC SYMPTOMS (DRESS)

DRESS, also known as multiorgan hypersensitivity, has been reported in patients taking AEDs, including FYCOMPA. DRESS may be fatal or life-threatening. DRESS typically, although not exclusively, presents with fever, rash, lymphadenopathy, and/or facial swelling, in association with other organ system involvement. If signs or symptoms are present, immediately evaluate the patient and discontinue FYCOMPA if an alternative etiology for signs or symptoms cannot be established.

WITHDRAWAL OF AEDs

A gradual withdrawal is generally recommended with AEDs to minimize the potential of increased seizure frequency, but if withdrawal is a response to adverse events, prompt withdrawal can be considered.

MOST COMMON ADVERSE REACTIONS

The most common adverse reactions in patients aged 12 years and older receiving FYCOMPA (5% and 1% higher than placebo) include dizziness, somnolence, fatigue, irritability, falls, nausea, weight gain, vertigo, ataxia, headache, vomiting, contusion, abdominal pain, and anxiety. Adverse reactions in patients aged 4 to <12 years were generally similar to patients aged 12 years and older.

DRUG INTERACTIONS

FYCOMPA may decrease the efficacy of contraceptives containing levonorgestrel. Plasma levels of perampanel were decreased when administered with known moderate and strong CYP3A4 inducers, including, carbamazepine, phenytoin, or oxcarbazepine. Multiple dosing of FYCOMPA 12 mg per day enhanced the effects of alcohol on vigilance and alertness, and increased levels of anger, confusion, and depression. These effects may also be seen when FYCOMPA is used in combination with other CNS depressants.

PREGNANCY AND LACTATION

Physicians are advised to recommend that pregnant patients taking FYCOMPA enroll in the North American Antiepileptic Drug (NAAED) Pregnancy Registry. Caution should be exercised when FYCOMPA is administered to pregnant or nursing women as there are no adequate data on the developmental risk associated with use in pregnant women, and no data on the presence of perampanel in human milk, the effects on the breastfed child, or the effects of the drug on milk production.

HEPATIC AND RENAL IMPAIRMENT

Use in patients with severe hepatic or severe renal impairment is not recommended. Dosage adjustments are recommended in patients with mild or moderate hepatic impairment. Use with caution in patients with moderate renal impairment.

DRUG ABUSE AND DEPENDENCE

FYCOMPA is a Schedule III controlled substance and has the potential to be abused and lead to drug dependence and withdrawal symptoms including anxiety, nervousness, irritability, fatigue, asthenia, mood swings, and insomnia.

INDICATION

FYCOMPA® (perampanel) is indicated in patients with epilepsy aged 4 years and older for partial-onset seizures (POS) with or without secondarily generalized seizures and adjunctive therapy for patients aged 12 years and older for primary generalized tonic-clonic (PGTC) seizures.

View the Prescribing Information.