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Generalized Convulsive Status EpilepticusPhase 2/3Ket-MidNCT05779657

Combined Ketamine and Midazolam for Generalized Convulsive Status Epilepticus

A Phase 2/3 study testing Ketamine and Midazolam in people with Generalized Convulsive Status Epilepticus, run by Sohag University at 1 site in Egypt.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Generalized convulsive status epilepticus (GCSE) is a common neurological emergency in children. Benzodiazepines are the recommended first line antiseizure medication (ASMs), but they fail to control seizures in a third of cases. Read more about this study

Who is it for?
Ages 6 months to 16 years
What is being tested?
Ketamine and Midazolam
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
144 participants
Where
1 siteEgypt
Study dates
21 Mar 2023to 30 Aug 2024
Phase
Phase 2/3
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 6 months to 16 years
  • All sexes
  • No healthy volunteers
  • Child

Who may be able to join

  • Age from 6 month to 16 years.
  • Generalized convulsive status epilepticus, defined as > 5 minutes of clinically observed continuous or recurrent generalized, tonic-clonic seizure activity without regaining of consciousness.

Who cannot join

  • Failure to obtain informed consent.
  • Previous treatment with any antiseizure medication for the presenting seizure episode.
  • Hypertension
  • Alcohol intake
  • Conditions associated with increased intracranial pressure (e.g., central nervous system mass lesions, hydrocephalus)
  • Glaucoma
Show all 18Show fewer
  • Known allergy or contraindications to any of the study drugs.
  • End-stage kidney disease.
  • End stage liver disease
  • Arrhythmia, severe heart disease, or pulmonary hypertension.
  • Hyperthyroidism
  • Pheochromocytoma
  • Hypoglycemia or hyperglycemia.
  • Inborn errors of metabolism.
  • Known or suspected psychiatric disorder.
  • Failure to obtain intravenous access in the first 5 minutes of stabilization phase.
  • Cessation of seizures during the stabilization phase (0 - 5 minutes).
  • Traumatic brain injury.

Trial locations and contacts

1 site in 1 country.

Egypt1 site
  • Sohag University Hospital

    Sohag, 82524

Other trials in Egypt

About this study

Official title: Efficacy of Combined Ketamine and Midazolam for Treatment of Generalized Convulsive Status Epilepticus in Children .

Generalized convulsive status epilepticus (GCSE) is a common neurological emergency in children. Benzodiazepines are the recommended first line antiseizure medication (ASMs), but they fail to control seizures in a third of cases. Combination of benzodiazepines with another ASM that has a different mechanism of action may be a promising option for faster control of GCSE. In this study, the investigators aim to evaluate the efficacy and safety of ketamine plus midazolam versus midazolam alone as first-line therapy of pediatric GCSE.

Read the detailed description

Generalized convulsive status epilepticus (GCSE) is a common neurological emergency in children, which is associated with significant morbidity and mortality. This condition is defined as > 5 minutes of continuous or recurrent generalized tonic-clonic seizure activity without regaining consciousness. GCSE requires immediate evaluation and management in order to control ongoing seizures.

According to most guidelines, benzodiazepines are the recommended first line antiseizure medication (ASMs). Second-line ASMs for benzodiazepines-refractory GCSE include multiple options, such as fosphenytoin/phenytoin, valproic acid, or levetiracetam. Last, refractory GCSE requires treatment with third-line ASMs, such as another second-line ASMs or infusion with thiopental, midazolam, pentobarbital, propofol, or ketamine.

However, about 35% of cases with GCSE are not controlled by benzodiazepines, and up to 40% of benzodiazepines-refractory GCSE don't respond to second-line ASMs. As GCSE persists for a longer time, it becomes more difficult to control with worse prognosis. Indeed, the effectiveness of benzodiazepines to control seizures decreases by 50% when given after 10-15 minutes of continuous seizures. Therefore, new ASMs or combinations are required for earlier control of seizures, which will contribute to better outcome. Combination of benzodiazepines with another ASM that has a different mechanism of action may be a promising option for faster control of GCSE. One of the potential drugs for such combination is ketamine.

Several adult and pediatric studies have shown effectiveness of ketamine in refractory and super-refractory GCSE. Unlike benzodiazepines that act through inhibitory Gamma-aminobutyric acid (GABA), ketamine is a non-competitive antagonist for N- methyl- d- aspartate (NMDA) receptors, which mediates excitatory glutamate action. Continuous seizure activity is associated with internalization of GABA receptors and upregulation of NMDA receptors.

A number of animal studies have demonstrated synergistic action of combined ketamine and benzodiazepines for status epilepticus. While combined ketamine and benzodiazepines have been used in pediatric sedation/analgesia, there are limited studies on such combination for children with GCSE.

In this study, the investigators aim to evaluate the efficacy and safety of ketamine plus midazolam versus midazolam alone as first-line therapy of pediatric GCSE.

Being tested
Ketamine, Midazolam, Placebo
Keywords
Status epilepticus, Ketamine, Drug combination, Children, Pediatric
Medical subject headings
Status Epilepticus

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • KetamineDrug

    Also called Ketalar

    Intravenous ketamine 2 mg/kg (max 60 mg) over 2 minutes (diluted with isotonic saline to 5 mg/ml concentration)

  • MidazolamDrug

    Intravenous midazolam 0.2 mg/kg (maximum 10 mg) over 2 minutes

  • PlaceboDrug

    Intravenous isotonic saline 0.4 ml/kg (max 12 ml) over 5 minutes

Study groups in NCT05779657
Study groupRoleWhat they receive
Study group (Ket-Mid)ExperimentalChildren receiving ketamine + midazolam
Receives: Drug: Ketamine; Drug: Midazolam
Control group (Pla-Mid)Placebo comparatorChildren receiving placebo + midazolam
Receives: Drug: Midazolam; Drug: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Cessation of seizures at 5 minutes

    Cessation of clinical seizures at 5 minutes study timepoint

    Measured: 5 minutes

Secondary outcomes (12)
  1. Need for repeating midazolam

    Need for repeating midazolam during the first therapy phase

    Measured: 15 minutes

  2. Cessation of seizures at 15 minutes

    Cessation of clinical seizures at 15 minutes study timepoint

    Measured: 15 minutes

  3. Cessation of seizures at 35 minutes

    Cessation of clinical seizures at 35 minutes study timepoint

    Measured: 35 minutes

  4. Cessation of seizures at 55 minutes

    Cessation of clinical seizures at 55 minutes study timepoint

    Measured: 55 minutes

  5. Seizure recurrence

    Recurrence of clinical seizures after initial cessation in the first 24 hours

    Measured: 24 hours

  6. Hypotension

    Occurrence of hypotension

    Measured: 24 hours

  7. Hypertension

    Occurrence of hypertension

    Measured: 24 hours

  8. Intubation

    Need for endotracheal intubation

    Measured: 24 hours

  9. Arrhythmia

    Occurrence of Arrhythmia

    Measured: 24 hours

  10. Emergence phenomenon

    Occurrence of emergence phenomenon, as one or more of the following: hallucination, delirium, vivid dreams, blurred/double vision, nausea/vomiting, hypersalivation.

    Measured: 24 hours

  11. Skin rash

    Occurrence of skin rash

    Measured: 24 hours

  12. Mortality

    Occurrence of death

    Measured: 24 hours

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted22 Mar 2023
  2. Study start21 Mar 2023
  3. Primary completion26 Aug 2024
  4. Study completion30 Aug 2024

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2/3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
Two groups of children with continuing seizures after stabilization phase (5 minutes) Study group (Ket-Mid): will receive intravenous ketamine 2 mg/kg (max 60 mg) over 2 minutes. Control group (Pla-Mid): will receive intravenous isotonic saline (as a placebo) in the same way. At the same time, both groups will receive intravenous midazolam 0.2 mg/kg (maximum 10 mg) over 2 minutes.
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
144 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05779657
Sponsor's protocol ID
Soh-Med-23-03-12MS
Acronym
Ket-Mid
Status last verified
Oct 2024
First submitted
9 Mar 2023
Last updated
29 Oct 2024
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: Unidentified individual patients' data will be available upon reasonable request after publication

Publications

  • Trinka E, Cock H, Hesdorffer D, Rossetti AO, Scheffer IE, Shinnar S, Shorvon S, Lowenstein DH. A definition and classification of status epilepticus--Report of the ILAE Task Force on Classification of Status Epilepticus. Epilepsia. 2015 Oct;56(10):1515-23. doi: 10.1111/epi.13121. Epub 2015 Sep 4.

    PubMed 26336950
  • Singh A, Stredny CM, Loddenkemper T. Pharmacotherapy for Pediatric Convulsive Status Epilepticus. CNS Drugs. 2020 Jan;34(1):47-63. doi: 10.1007/s40263-019-00690-8.

    PubMed 31879852
  • Glauser T, Shinnar S, Gloss D, Alldredge B, Arya R, Bainbridge J, Bare M, Bleck T, Dodson WE, Garrity L, Jagoda A, Lowenstein D, Pellock J, Riviello J, Sloan E, Treiman DM. Evidence-Based Guideline: Treatment of Convulsive Status Epilepticus in Children and Adults: Report of the Guideline Committee of the American Epilepsy Society. Epilepsy Curr. 2016 Jan-Feb;16(1):48-61. doi: 10.5698/1535-7597-16.1.48.

    PubMed 26900382
  • Naylor DE. Treating acute seizures with benzodiazepines: does seizure duration matter? Epileptic Disord. 2014 Oct;16 Spec No 1:S69-83. doi: 10.1684/epd.2014.0691.

    PubMed 25323468
  • Rosati A, L'Erario M, Ilvento L, Cecchi C, Pisano T, Mirabile L, Guerrini R. Efficacy and safety of ketamine in refractory status epilepticus in children. Neurology. 2012 Dec 11;79(24):2355-8. doi: 10.1212/WNL.0b013e318278b685. Epub 2012 Nov 28.

    PubMed 23197747
  • Gaspard N, Foreman B, Judd LM, Brenton JN, Nathan BR, McCoy BM, Al-Otaibi A, Kilbride R, Fernandez IS, Mendoza L, Samuel S, Zakaria A, Kalamangalam GP, Legros B, Szaflarski JP, Loddenkemper T, Hahn CD, Goodkin HP, Claassen J, Hirsch LJ, Laroche SM. Intravenous ketamine for the treatment of refractory status epilepticus: a retrospective multicenter study. Epilepsia. 2013 Aug;54(8):1498-503. doi: 10.1111/epi.12247. Epub 2013 Jun 12.

    PubMed 23758557
  • Niquet J, Baldwin R, Norman K, Suchomelova L, Lumley L, Wasterlain CG. Midazolam-ketamine dual therapy stops cholinergic status epilepticus and reduces Morris water maze deficits. Epilepsia. 2016 Sep;57(9):1406-15. doi: 10.1111/epi.13480. Epub 2016 Aug 8.

    PubMed 27500978
  • Martin BS, Kapur J. A combination of ketamine and diazepam synergistically controls refractory status epilepticus induced by cholinergic stimulation. Epilepsia. 2008 Feb;49(2):248-55. doi: 10.1111/j.1528-1167.2007.01384.x. Epub 2007 Oct 15.

    PubMed 17941842
  • Buratti S, Giacheri E, Palmieri A, Tibaldi J, Brisca G, Riva A, Striano P, Mancardi MM, Nobili L, Moscatelli A. Ketamine as advanced second-line treatment in benzodiazepine-refractory convulsive status epilepticus in children. Epilepsia. 2023 Apr;64(4):797-810. doi: 10.1111/epi.17550. Epub 2023 Mar 2.

    PubMed 36792542
  • Sidharth, Sharma S, Jain P, Mathur SB, Malhotra RK, Kumar V. Status Epilepticus in Pediatric patients Severity Score (STEPSS): A clinical score to predict the outcome of status epilepticus in children- a prospective cohort study. Seizure. 2019 Oct;71:328-332. doi: 10.1016/j.seizure.2019.09.005. Epub 2019 Sep 11.

    PubMed 31536850

Questions about this trial

What is this clinical trial studying?

A Phase 2/3 study testing Ketamine and Midazolam in people with Generalized Convulsive Status Epilepticus, run by Sohag University at 1 site in Egypt.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 18 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 29 Oct 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Egypt. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Cessation of seizures at 5 minutes (time frame: 5 minutes). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05779657, which also lists 10 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 29 Oct 2024.

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