ClinicalTrials.gg
RecruitingNCT05851391RESTOREUpdated Jul 29, 2026

buRst-supprESsion TO Stop Refractory Status Epilepticus Post-cardiac Arrest

A Phase 2 interventional study of Burst Suppression EEG Target Intravenous Anesthesia and Seizure Suppression EEG Target Intravenous Anesthesia in Hypoxia-Ischemia, Brain, Heart Arrest and Status Epilepticus, sponsored by University of California, San Francisco. Recruiting at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-07-29.

Sponsored by University of California, San Francisco · Phase 2, Interventional, and Treatment

From the registry’s dates

  • Started Aug 2023; still recruiting 3 years 3 months later.
Phase
Phase 2
Study type
Interventional
Enrollment
30
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

RESTORE is a randomized clinical trial investigating the safety and feasibility of using EEG treatment targets (burst suppression vs. seizure suppression) for post-cardiac arrest refractory status epilepticus treatment.

Read the detailed description

Rationale: Seizures emerge as a complication of hypoxic-ischemic brain injury in near a third of patients successfully resuscitated from cardiac arrest. Seizures post-cardiac arrest can be refractory to treatment with anti-seizure medications and anesthetics may be used for refractory status epilepticus control. Anesthetic treatment guided by continuous EEG can target burst suppression or seizure suppression, however it is not known which strategy is superior for achieving PCARSE control.

Objective: determine the safety and feasibility of post-cardiac arrest refractory status epilepticus (PCARSE) treatment using EEG goals for intravenous anesthetic titration (burst suppression vs. seizure suppression).

Clinical Trial Phase: II

Study Design: prospective, randomized, open-label, blinded end-point, concurrently-controlled, parallel arms design clinical trial.

Study Period: two years

Study Population: unconscious cardiac arrest survivors with return of spontaneous circulation who develop post-cardiac arrest refractory status epilepticus (PCARSE).

Interventions: anesthetic use targeting burst suppression vs. seizure suppression on EEG for 24 hours. Intervention maybe repeated using the dame EEG target once in case of PCARSE recurrence.

Sample Size: 30 subjects randomized in a 1:1 ratio to either burst suppression or seizure suppression EEG targets.

Primary Endpoints: Safety and feasibility of seizure control using burst suppression or seizure suppression EEG targets for PCARSE treatment.

Secondary Endpoints: Seizure recurrence incidence, time to seizure recurrence, number and dose of anti-seizure medication and anesthetic needed for PCARSE control, Death or disability according to the Cerebral Performance Category at Discharge (30 days), and Death or disability according to the modified Rankin Scale at Discharge (30 days).

Risks: Participants receiving anesthetics for PCARSE treatment will be monitored for hypotension, propofol infusion syndrome, and hypertriglyceridemia. Patients with PCARSE are at high risk for death and prolonged hospital stays.

02

Conditions studied

  • Hypoxia-Ischemia, Brain
  • Heart Arrest
  • Status Epilepticus
  • Refractory Status Epilepticus
  • Seizures
  • Anoxic-Ischemic Encephalopathy
  • Anoxia-Ischemia, Cerebral
03

In context

Hypoxia-Ischemia, Brain

261 studies on the registry are indexed under Hypoxia-Ischemia, Brain; 95 are open to participants now.

This study's planned enrollment of 30 is below the median of 50 across 156 interventional studies indexed under Hypoxia-Ischemia, Brain.

Browse Hypoxia-Ischemia, Brain studies →

Lead sponsor

University of California, San Francisco is the lead sponsor of 2,169 studies on the registry; 372 are open to participants now.

Of its 267 completed or terminated interventional studies of FDA-regulated products, 202 (76%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Age ≥18 years old
  2. Non-traumatic, out-of-hospital cardiac arrest
  3. Comatose on admission - defined as not following commands
  4. Return of spontaneous circulation (ROSC) within less than 45 minutes
  5. Admission to the intensive care unit
  6. Diagnosis of post-cardiac arrest status epilepticus confirmed with continuous

EEG monitoring within 7 days from ROSC

Exclusion criteria

Exclusion Criteria:

  1. Acute cerebral hemorrhage or infarction
  2. Pregnancy
  3. Prisoners
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Relapsed and refractory

Relapsed: the illness came back after treatment had worked. Refractory: it did not respond to treatment, or stopped responding while still on it.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
30 participants (estimated)

Study arms

  • Other
    Burst Suppression EEG Target

    Anesthetic will be titrated to achieve burst suppression on continuous EEG (50-99% attenuation/suppression) for 24 hours.

    Drug: Burst Suppression EEG Target Intravenous Anesthesia

  • Other
    Seizure Suppression EEG Target

    Anesthetic will be titrated to achieve seizure suppression on continuous EEG for 24 hours.

    Drug: Seizure Suppression EEG Target Intravenous Anesthesia

Interventions

  • DrugBurst Suppression EEG Target Intravenous Anesthesia

    The objective of the burst suppression EEG target is to stop seizures by titrating the anesthetic infusion to suppress most of the EEG background (\>50% suppressed/attenuated). After this 24-hour period, this target would be continued for 24 hours. The anesthetic will then be tapered under EEG monitoring. In case of PCARSE recurrence, the intervention with the same target will be re-initiated for another cycle of 24 hours.

  • DrugSeizure Suppression EEG Target Intravenous Anesthesia

    is to stop seizures by titrating the anesthetic infusion without suppressing most of the EEG background. This target would be continued for 24 hours. After this 24-hours period, this target would be continued for 24 hours. The anesthetic will then be tapered under EEG monitoring. In case of PCARSE recurrence, the intervention with the same target will be re-initiated for another cycle of 24 hours.

06

What researchers measure

Primary outcomes

  1. Post-cardiac arrest refractory status epilepticus control

    Continuous EEG will be monitored to determine time to PCARSE recurrence during the anesthetic maintenance and anesthetic weaning phase (combined)

    Time frame: 48 hours

Secondary outcomes

  1. Seizure recurrence incidence and duration (burden)

    Presence of seizures on EEG after initiation of anesthetic maintenance phase

    Time frame: 24-48 hours

  2. Neurological Function at Discharge (CPC: Cerebral Performance Category)

    Cerebral Performance Category score at Discharge

    Time frame: 30 days

  3. Neurological Function at Discharge (mRS: modified Ranking Scale)

    modified Rankin Scale score at Discharge

    Time frame: 30 days

  4. Neurological Function 90 days (CPC: Cerebral Performance Category)

    Cerebral Performance Category score at 90 days

    Time frame: 90 days

  5. Neurological Function 90 days (mRS: modified Ranking Scale)

    modified Rankin Scale score at Discharge

    Time frame: 90 days

  6. Neurological Function 180 days (mRS: modified Ranking Scale)

    modified Rankin Scale score at Discharge

    Time frame: 180 days

  7. Neurological Function180 days (mRS: modified Ranking Scale)

    modified Rankin Scale score at Discharge

    Time frame: 180 days

  8. PCARSE Treatment Intensity

    Number of anti-seizure medications and anesthetics used for PCARSE control after initiation of anesthetic maintenance phase and prior to weaning

    Time frame: 24-48 hours

  9. Seizure recurrence incidence and duration (burden)

    Presence of seizures on EEG after initiation of anesthetic weaning phase

    Time frame: 24-48 hours

  10. PCARSE Treatment Intensity

    Dose of anti-seizure medications and anesthetics used for PCARSE control after initiation of anesthetic maintenance phase and prior to weaning

    Time frame: 24-48 hours

07

Study locations

1 of 1 sites recruiting
  • Zuckerberg San Francisco General Hospital
    San Francisco, California 94110, United States
    Recruiting
    • Edilberto Amorim, MD · Contact
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Started Aug 2023 (actual). Primary completion is estimated for Nov 2027, 51 months after the start.

How these figures are worked out, and which studies are left out of them.

Registered
Feb 24, 2023
First posted
May 9, 2023
StartActual
Aug 7, 2023
Primary completionEst.
Nov 30, 2027
CompletionEst.
Apr 30, 2028
Last update
Jul 29, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jul 29, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05851391
Collaborators
The ZOLL Foundation
Responsible party
Sponsor
First posted
May 9, 2023
Start date
Aug 7, 2023
Primary completion
Nov 30, 2027 (estimated)
Completion
Apr 30, 2028 (estimated)
Last update
Jul 29, 2026

Study contacts

Edilberto Amorim, MD
Contact
restorestudy@ucsf.edu
628-206-3203
Kevin Bao
Contact
restorestudy@ucsf.edu
(415)514-2120
Edilberto Amorim, MD
principal investigator · Assistant Professor of Neurology

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Interested in this study?

Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.

Contact study team

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion