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WithdrawnNCT05757544Updated May 7, 2024

Safety and Efficacy Study of IV Ganaxolone as Adjuvant Therapy for Established Status Epilepticus (ESE)

A Phase 2 interventional study of IV Ganaxolone and IV Placebo in Status Epilepticus, sponsored by Marinus Pharmaceuticals. Withdrawn. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2024-05-07.

Sponsored by Marinus Pharmaceuticals (part of Immedica Pharma) · Phase 2, Interventional, and Treatment

Why this study was withdrawn
for business reasons
Phase
Phase 2
Study type
Interventional
Enrollment
0
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

This study is designed to optimize the dosing regimen and evaluate the preliminary safety and efficacy of Intravenous (IV) ganaxolone as adjuvant therapy for participants with ESE receiving initial IV antiepileptic drug (AED) according to currently practiced standard of care (SOC). The study will be composed of 2 phases: an initial, open-label, dose optimization phase followed by IV ganaxolone versus placebo double-blind phase.

02

Conditions studied

  • Status Epilepticus

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Keywords

  • Established status epilepticus
  • Ganaxolone
  • Antiepileptic drug
  • Adjuvant therapy
03

In context

Status Epilepticus

124 studies on the registry are indexed under Status Epilepticus; 37 are open to participants now.

Browse Status Epilepticus studies →

Lead sponsor

Marinus Pharmaceuticals is the lead sponsor of 22 studies on the registry; none are open to participants now.

Of its 9 completed or terminated interventional studies of FDA-regulated products, 9 (100%) have results posted.

First submitted before Marinus Pharmaceuticals became part of Immedica Pharma.

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. Males or females at least 18 years of age at the time of the first IP bolus dose.
  2. Has received benzodiazepines before or after arrival to the ED for generalized convulsive seizures lasting more than 5 minutes.
  3. Has received the last dose of benzodiazepine more than 5 minutes prior to the first IP bolus initiation.
  4. Ongoing or recurrent convulsions, or evidence of electrographic SE on rapid EEG immediately prior to the first IP bolus initiation.
  5. The participant has not yet received a IV AED for the treatment of the current episode of SE or the first IP bolus can be initiated within 15 minutes before or 10 minutes after the administration of such IV AED(s).

Exclusion criteria

Exclusion Criteria:

  1. The participant is intubated or the decision to proceed with intubation has been made.
  2. The cause of SE is acute anoxic brain injury, cardiac arrest, acute trauma, hyper- or hypo-glycemia, or eclampsia.
  3. The participant is known or suspected to be pregnant.
  4. The participant is incarcerated at the time of SE occurrence.
  5. Participants who pre-emptively opted out of the study.
  6. A known allergy or sensitivity to progesterone or allopregnanolone medications/ supplements.
  7. Receiving a concomitant IV product containing Captisol®.
  8. Known estimated (eGFR) \<30 milliliters per minute (mL/min) and not receiving dialysis (may initiate first IP bolus prior to acute labs).
  9. Individual weighing or suspected to weigh \<40 kilograms (kg).
  10. Hypotension requiring 2 or more vasopressors.
  11. An individual who, in the opinion of the investigator has a of less than 24 hours.
  12. Use of an product for which less than 30 days or 5 half-lives have elapsed from the final product administration. Participation in a non-interventional clinical study does not exclude eligibility.
  13. Known or suspected history or evidence of a medical condition that, in the investigator's judgment, would expose participant to an undue risk of a significant adverse event or interfere with assessments of safety or efficacy during the study.
Terms in these criteria, in plain language(4)

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.

Line of therapy

A line of therapy is one course of treatment, which may combine several drugs. First-line is the first course given; second-line follows when that stops working or is not tolerated.

“Two prior lines” means two courses that count separately under the study’s rules — not simply two drugs. Ask the study team if you are unsure how yours are counted.

GFR and eGFR (kidney filtering)

GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².

Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Sequential assignment
Masking
Triple (Participant, Care provider, Investigator)
Enrollment
0 participants (actual)

Study arms

  • Experimental
    Dose optimization phase (open label): IV Ganaxolone bolus (variable) followed by infusion (variable)

    Drug: IV Ganaxolone

  • Experimental
    Double-blind phase: IV Ganaxolone + SOC

    Drug: IV Ganaxolone

  • Placebo comparator
    Double-blind phase: IV Placebo + SOC

    Drug: IV Placebo

Interventions

  • IV Ganaxolone will be administered.

  • DrugIV Placebo

    IV Placebo will be administered

06

What researchers measure

Primary outcomes

  1. Absence of electrographic (rapid electroencephalography [EEG]) evidence of status epilepticus or recurrence of convulsions at 1 hour after the first IP bolus administration without the use of any additional medications with anti-seizure properties

    Time frame: At 1 hour

Secondary outcomes

  1. Percentage of participants with no escalation of care for Status epilepticus (SE) during investigational product (IP) infusion

    Time frame: Up to Day 7

  2. Time to clinical seizure and electrographic SE cessation

    Time frame: Up to Day 7

  3. Percentage of participants with no escalation of care (including re-administration of IP) at any point within 24 hours from the initial IP bolus administration

    Time frame: Up to 24 hours

  4. Percentage of participants with no escalation to IV anesthesia for treatment of seizures during IP infusion

    Time frame: Up to Day 7

  5. Percentage of participants with no escalation to IV anesthesia for treatment of seizures within 24 hours of the initial IP bolus

    Time frame: Up to 24 hours

  6. Time to clinical or electrographic seizure recurrence within 24 hours from the initiation of the first IP bolus

    Time frame: Up to 24 hours

07

Study locations

No study locations are listed for this record.

08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 7, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05757544
Responsible party
Sponsor
First posted
Mar 7, 2023
Start date
Apr 1, 2023
Primary completion
Feb 2026 (estimated)
Completion
Feb 2026 (estimated)
Last update
May 7, 2024

Oversight

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

Not currently enrolling

This study is withdrawn, as verified in May 2024. You cannot join it, but the record below documents what was studied.

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Discussion

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Studies of the drug tested here: Ganaxolone

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