A Study Using SAGE-547 for Super Resistant Status Epilepticus


  • Study type

  • Study phase

  • Study IDs

  • Describes the nature of a clinical study. Types include:

    • Observational study — observes people and measures outcomes without affecting results.
    • Interventional study (clinical trial) — studies new tests, treatments, drugs, surgical procedures or devices.
    • Medical records research — uses historical information collected from medical records of large groups of people to study how diseases progress and which treatments and surgeries work best.
  • During the early phases (phases 1 and 2), researchers assess safety, side effects, optimal dosages and risks/benefits. In the later phase (phase 3), researchers study whether the treatment works better than the current standard therapy. They also compare the safety of the new treatment with that of current treatments. Phase 3 trials include large numbers of people to make sure that the result is valid. There are also less common very early (phase 0) and later (phase 4) phases. Phase 0 trials are small trials that help researchers decide if a new agent should be tested in a phase 1 trial. Phase 4 trials look at long-term safety and effectiveness, after a new treatment has been approved and is on the market.

  • Site IRB
    • Rochester, Minnesota: 15-002432
    NCT ID: NCT02477618
    Sponsor Protocol Number: 547-SSE-301

About this study

This is a randomized, double-blind, placebo-controlled trial, designed to evaluate the effectiveness and safety of SAGE-547 administered as a continuous intravenous infusion to patients in very resistant status epilepticus.

Participation eligibility

Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. If you need assistance understanding the eligibility criteria, please contact the study team.

See eligibility criteria

Inclusion Criteria:

  • Subjects two (2) years of age and older
  • Subjects who have:
    • Failed to respond to the administration of at least one first-line agent (e.g., benzodiazepine or other emergent initial AED treatment), according to institution standard of care, and;
    • Failed to respond to at least one second-line agent (e.g., phenytoin, fosphenytoin, valproate, phenobarbital, levetiracetam or other urgent control AED), according to institution standard of care, and;
    • Not previously been administered a third-line agent but have been admitted to an intensive care unit with the intent of administering at least one third-line agent for at least 24 hours; or who have previously failed zero, one or more wean attempts from third-line agents and are now on continuous intravenous infusions of one or more third-line agent and in an EEG burst or seizure suppression pattern; or who have previously failed one or more wean attempts from third-line agents and are now either not on a continuous intravenous infusion of at least one third-line agent or are on a continuous intravenous infusion of one or more third-line agent but not in an EEG burst or seizure suppression pattern

Exclusion Criteria:

  • Subjects with SRSE due to anoxic/hypoxic encephalopathy with highly malignant/ malignant EEG features
  • Children (subjects aged less than 17 years) with an encephalopathy due to a rapidly progressing underlying neurological disorder
  • Subjects who have any of the following:
    1. a GFR low enough to warrant dialysis but for whatever reason, dialysis is not planned or non-continuous dialysis planned (that would not adequately remove Captisol®);
    2. severe cardiogenic or vasodilatory shock requiring two or more pressors that is not related to third-line agent use;
    3. fulminant hepatic failure;
    4. no reasonable expectation of recovery (for instance, a likely outcome is persistent vegetative state) or life-expectancy, in the experience of the investigator, is less than 30 days.
  • Subjects who are being administered more than three third-line agents concomitantly or in whom the qualifying wean cannot be completed per protocol

Participating Mayo Clinic locations

Study statuses change often. Please contact us for help.

Mayo Clinic Location Status

Rochester, Minn.

Mayo Clinic principal investigator

Sara Hocker, M.D.

Closed for enrollment


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