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Clinical Trial Summary

This a phase 2 study comparing the efficacy of intravenous (IV) lacosamide (LCM) with IV fosphenytoin (fPHT) in controlling frequent nonconvulsive seizures (NCSs), the Adverse Events profile of LCM compared with fPHT when used to treat frequent NCSs, and length of stay in an intensive care unit for subjects treated with LCM versus subjects treated with fPHT. The trial will include a preacute-treatment period, an acute-treatment period, a postacute-treatment period, and a long-term follow-up period.


Clinical Trial Description

Exploratory, prospective, multicenter, open-label, randomized study, in which the physicians who are interpreting cEEGs for treatment purposes and the central reviewers who are providing final cEEG interpretation for study purposes are all blinded to treatment.

Initial LCM/maintenance doses: Subjects will receive a 400‑mg IV initial bolus over 30 minutes, followed by a 2-hour post-dose observation-only period. If a breakthrough seizure occurs in the 6 hours following the 2‑hour post-dose observation-only period, the subject will receive a 200‑mg rebolus over 30 minutes. Regardless of whether a rebolus was administered, a maintenance dose of LCM will be started 12 hours after the initial bolus, and it will continue every 12 hours throughout the acute-treatment period. The daily maintenance dose will be equivalent to the total IV bolus per day (400 mg if no rebolus was administered or 600 mg if a rebolus was administered), divided into 2 doses. After completion of the acute-treatment period, daily maintenance with an AED will be at the discretion of the treating physician.

Initial fPHT/maintenance doses: Subjects will receive a 20‑mg PE/kg IV initial bolus at a rate no greater than 75 mg PE/minute, followed by a 2‑hour post-dose observation-only period. If a breakthrough seizure occurs in the 6 hours following the 2‑hour post-dose observation-only period, the subject will receive a 5‑mg PE/kg IV rebolus at a rate no greater than 75 mg PE/minute. Regardless of whether a rebolus was administered, a maintenance dose of fPHT will be started 12 hours after the initial bolus, and it will continue every 12 hours throughout the acute-treatment period. The daily maintenance dose will be 5 mg PE/kg, divided into 2 doses. After completion of the acute-treatment period, daily maintenance with an AED will be at the discretion of the treating physician.

Crossover/maintenance doses: If a subject does not receive a rebolus but has a seizure within 24 hours following the 2-hour post-initial-dose observation-only period, he or she will "cross over" and begin receiving the other drug, ie, the one not originally administered. If a subject does receive a rebolus and has another seizure within 24 hours following the 2-hour post-rebolus observation-only period, he or she will also cross over to the other drug. If crossover occurs, the subject will "start over" with the second drug, going through the same observation-only period and rebolusing, if necessary. If a subject crosses over and starts receiving the second drug, in addition to receiving every-12‑hours maintenance doses of the drug originally administered, the subject will also receive maintenance doses of the second drug every 12 hours, beginning 12 hours after the first dose of the second drug. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT01458522
Study type Interventional
Source Duke University
Contact
Status Completed
Phase Phase 2
Start date May 2012
Completion date July 2015

See also
  Status Clinical Trial Phase
Completed NCT02082873 - Nonconvulsive Seizure Identification on Quantitative EEG by Neuro ICU Nurses