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RecruitingNCT05313308Updated May 18, 2026

A Survey of Midazolam in People With Status Epilepticus

An observational study in Epilepsy, sponsored by Clinigen K.K.. Recruiting at 1 site in Japan. Per ClinicalTrials.gov, last updated 2026-05-18.

Sponsored by Clinigen K.K. · Observational

From the registry’s dates

  • Started Jun 2021; still recruiting 5 years 4 months later.
Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
50
Sex
All
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Study summary

This study is a survey in Japan of midazolam oromucosal solution used to treat people with status epilepticus. The study sponsor will not be involved in how the participants are treated but will provide instructions on how the clinics will record what happens during the study.

The main aim of the study is to check for side effects related from midazolam oromucosal solution and to check if midazolam oromucosal solution improves symptoms of status epilepticus. During the study, participants with status epilepticus will take midazolam oromucosal solution according to their clinic's standard practice. The study doctors will check for side effects from midazolam for 6 months.

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Conditions studied

  • Epilepsy

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03

In context

Epilepsy

1,805 studies on the registry are indexed under Epilepsy; 417 are open to participants now.

This study's planned enrollment of 50 is below the median of 102 across 521 observational studies indexed under Epilepsy.

Browse Epilepsy studies →

Lead sponsor

This is the only study on the registry with Clinigen K.K. as lead sponsor.

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

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Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Probability sample

Study population

Participants with status epilepticus who received midazolam oromucosal solution

Eligibility criteria

Inclusion Criteria

  • Participants with non-convulsive status epilepticus
  • Participants treated with study drug outside the medical institution
  • Participants receiving an additional dose of study drug

Exclusion Criteria Participants have any contraindication to midazolam.

05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
50 participants (estimated)
Patient registry
No

Groups and cohorts

  • Midazolam

    Participants will receive a single age-specific dose midazolam oromucosal solution through buccal mucosa upon onset of seizures. Dose will be dependent by age of participants as follows: \>= 52 weeks and \< 1 year; 2.5 mg/dose of midazolam, for \>= 1 year and \< 5 years; 5 mg/dose of midazolam, for \>= 5 years and \< 10 years; 7.5 mg/dose of midazolam, for \>= 10 years and \< 18 years; 10 mg/dose of midazolam. Participants received interventions as part of routine medical care.

    Drug: Midazolam

Interventions

  • DrugMidazolam

    Midazolam oromucosal solution

    Also known as: BUCCOLAM oromucosal solution

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What researchers measure

Primary outcomes

  1. Number of Participants Who Experienced At Least One Treatment-Emergent Adverse Event (TEAE)

    An adverse event (AE) is any untoward medical occurrence in a participant or clinical investigation subject administered a pharmaceutical product. It does not necessarily have to have a causal relationship with the treatment. An adverse event can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of a pharmaceutical product (including an investigational product for a new indication in Japan), whether or not related to the pharmaceutical product.

    Time frame: Up to 24 hours after drug administration

  2. Number of Participants With Serious Adverse Events

    A serious AE is any untoward medical occurrence or effect that at any dose results in death, is life-threatening, requires inpatient hospitalization or prolongation of existing hospitalization, results in persistent or significant disability / incapacity, is a congenital anomaly / birth defect or is medically important due to other reasons than the above mentioned criteria.

    Time frame: Up to 24 hours after drug administration

  3. Number of Participants With Therapeutic Success

    Therapeutic success is defined as cessation of seizure activity within 10 minutes and sustained absence of seizure activity for 30 minutes following the first dose of midazolam oromucosal solution. Number of participants with therapeutic success will be reported.

    Time frame: Up to 30 minutes after drug administration

07

Study locations

1 of 1 sites recruiting
  • Clinigen selected site
    Tokyo, Japan
    Recruiting
08

References and documents

Related links

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 18, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT05313308
Lead sponsor
Clinigen K.K.
Responsible party
Sponsor
First posted
Apr 6, 2022
Start date
Jun 1, 2021
Primary completion
Aug 31, 2028 (estimated)
Completion
Aug 31, 2028 (estimated)
Last update
May 18, 2026

Study contacts

Clinigen Contact
Contact
takashi.namba@clinigen.co.jp
+81-3-6869-0663
Study Director
study director · Clinigen K.K.

Oversight

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

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