The goal of this clinical trial is to determine if treatment of patients with two doses of ketamine plus levetiracetam versus levetiracetam alone leads to more effective control of status epilepticus.
KESETT is a multicenter, randomized, blinded study to determine whether adding 1 mg/kg or 3 mg/kg dose of KET to 60 mg/kg LEV can terminate status epilepticus (SE) in a larger fraction of subjects with benzodiazepine-refractory SE than those treated with LEV (60 mg/kg) alone. The primary outcome is termination of SE from 15 minutes after starting the study drug infusion, sustained until 60 minutes from enrollment without using additional anti-seizure medication. Termination of SE is determined by (1) improving consciousness and absence of clinically apparent seizures at 60 minutes or (2) absence of any electrographic SE after 15 minutes in those with EEG monitoring and no improvement in consciousness. Secondary objectives include determining the relative safety of the treatment arms on defined safety outcomes and all adverse events, analysis of secondary/exploratory efficacy outcomes, and evaluation of both effectiveness and safety in the pediatric subpopulation. The trial will initially allocate subjects equally (1:1:1) for the first 350 participants (burn-in period) before transitioning to response-adaptive randomization. Interim analyses will be conducted for efficacy and futility beginning when 350 subjects have been randomized, and will occur every 100 subjects thereafter. A maximum of 770 participants will be enrolled.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
770
The study drug will be produced at the central pharmacy, a GMP facility at the University of California, Davis. Diluted formulations are expected to remain stable for months when stored at room temperature. Expiration dates for study drugs will be determined and adjusted based on ongoing stability testing performed on study drugs prepared at the GMP facility for the study. All three formulations will be transparent solutions. None of the formulations are reported to consistently cause adverse effects at the infusion site. The method of drug administration, including volume and rate of infusion, is identical for all three drugs. These factors ensure that drug administration will be blinded.
The study drug will be produced at the central pharmacy, a GMP facility at the University of California, Davis. Diluted formulations are expected to remain stable for months when stored at room temperature. Expiration dates for study drugs will be determined and adjusted based on ongoing stability testing performed on study drugs prepared at the GMP facility for the study. All three formulations will be transparent solutions. None of the formulations are reported to consistently cause adverse effects at the infusion site. The method of drug administration, including volume and rate of infusion, is identical for all three drugs. These factors ensure that drug administration will be blinded.
Termination of SE
Termination of SE from 15 minutes after starting the study drug infusion, sustained for 60 minutes without using additional anti-seizure medication. Termination of SE is determined by (1) improving consciousness and absence of clinically apparent seizures at 60 minutes or (2) absence of any electrographic status epilepticus (ESE) after 15 minutes in those with EEG monitoring and no improvement in consciousness.
Time frame: From 15 minutes after starting the study drug infusion, sustained for 60 minutes without using additional anti-seizure medication.
Desirability of response (DOOR) outcome
One secondary outcome will be a desirability of response (DOOR) outcome which is a composite efficacy measure evaluated on a graded scale from 1 to 5 at 60 minutes, as follows: * No clinically evident or electrographic seizures after 15 minutes, no rescue drugs, and improving mental status by 60 minutes * No clinically evident or electrographic seizures after 15 minutes, not intubated, but not improving mental status at 60 minutes * No clinically evident or electrographic seizures after 15 minutes, but intubated or use of additional seizures medications (including medications used for intubation) * Any clinically evident seizure or electrographic seizure requiring rescue medicine within the timeframe between 15 and 60 minutes * Life-threatening hypotension or cardiac arrhythmia or death within 60 minutes The Central Adjudication Core will determine the DOOR grade (1-5) based on clinical outcome data provided by the site and EEG data provided by the Central EEG Core.
Time frame: 60 minutes after starting the study drug infusion
Endotracheal intubation
Endotracheal intubation within 60 minutes of randomization (start of study drug infusion) and duration
Time frame: Within 60 minutes after start of the study drug infusion
ICU duration
ICU duration during the study period for those that are admitted to the ICU as abstracted from the hospital admission record
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The study drug will be produced at the central pharmacy, a GMP facility at the University of California, Davis. Diluted formulations are expected to remain stable for months when stored at room temperature. Expiration dates for study drugs will be determined and adjusted based on ongoing stability testing performed on study drugs prepared at the GMP facility for the study. All three formulations will be transparent solutions. None of the formulations are reported to consistently cause adverse effects at the infusion site. The method of drug administration, including volume and rate of infusion, is identical for all three drugs. These factors ensure that drug administration will be blinded.
UAB Hospital
Birmingham, Alabama, United States
NOT_YET_RECRUITINGBanner University Medical Center - Tucson Campus
Tucson, Arizona, United States
RECRUITINGUC San Diego Health La Jolla
La Jolla, California, United States
NOT_YET_RECRUITINGRonald Reagan UCLA Medical Center
Los Angeles, California, United States
NOT_YET_RECRUITINGChildren's Hospital Los Angeles
Los Angeles, California, United States
NOT_YET_RECRUITINGStanford University Medical Center
Palo Alto, California, United States
RECRUITINGUC Davis Medical Center
Sacramento, California, United States
RECRUITINGUC San Diego Health Hillcrest Hospital
San Diego, California, United States
NOT_YET_RECRUITINGRady Children's Hospital
San Diego, California, United States
NOT_YET_RECRUITINGSan Francisco General Hospital
San Francisco, California, United States
RECRUITING...and 53 more locations
Time frame: Up to 30 days after enrollment
Hospital length-of-stay (LOS)
Hospital length-of-stay (LOS) from the ED as abstracted from the hospital admission record
Time frame: Up to 30 days after enrollment
Late recurrent seizure
Number of participants with late recurrent seizure between 60 minutes and 4 hours after the start of the study drug infusion
Time frame: Between 60 minutes and 4 hours after the start of the study drug infusion
Time to termination of seizures
The interval from the start of infusion of study drug to the cessation of electrographic seizure in those who meet the primary outcome
Time frame: From the start of infusion of study drug to the cessation of electrographic seizure assessed up to 60 minutes from study drug initiation
Late seizures after requiring an anesthetic
Number of participants with late seizures after requiring an anesthetic between 60 minutes and 24 hours after start of study drug infusion
Time frame: Between 60 minutes and 24 hours after start of study drug infusion
All cause mortality
All cause mortality to end of study
Time frame: From the start of study drug infusion to hospital discharge or day 30