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CompletedNCT01150331SAMU-KEPPRAUpdated Jan 15, 2026

Study of Antiepileptic Drug in Generalised Convulsive Status Epilepticus

A Phase 3 interventional study of Levetiracetam/Clonazepam and Clonazepam/Placebo levetiracetam IV in Status; Epilepticus, Tonic-clonic, sponsored by Assistance Publique - Hôpitaux de Paris. Completed at 1 site in France. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-01-15.

Sponsored by Assistance Publique - Hôpitaux de Paris · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
203
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

Compare the efficiency of the association, first line, the intravenous levetiracetam and the intravenous clonazepam, in that of a monotherapy of clonazepam intravenous in the pre-hospital treatment of tonicoclonic generalised status epilepticus.

Read the detailed description

At this time, the prehospital treatment of the status epilepticus use some molecule ("FOSPHENYLOINE") with large contra-indications. In this case the physician is not able to know the past medical history of the patient, the biological examinations and so he can not decide which molecules he can use.

The levetiracetam is a knowledge medication in the epilepsy since more than twenty years. One of specificity of the levetiracetam is to be able to be used in all situations (no clinical or biological contre-indication). This molecule seems like to be very interesting to be used in prehospital system.

The goal of this study is to evaluate the association levetiracetam / clonazepam in first line in the prehospital treatment of the status epilepticus

02

Conditions studied

  • Status; Epilepticus, Tonic-clonic

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Keywords

  • status epilepticus
  • generalised convulsive status epilepticus
  • first line treatments
  • double-blind randomized controlled trial
  • prehospital treatment
03

In context

Status Epilepticus

126 studies on the registry are indexed under Status Epilepticus; 38 are open to participants now.

This study's enrollment of 203 is above the median of 70 across 74 interventional studies indexed under Status Epilepticus.

Browse Status Epilepticus studies →

Lead sponsor

Assistance Publique - Hôpitaux de Paris is the lead sponsor of 3,504 studies on the registry; 1,006 are open to participants now.

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

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Who can participate

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

Inclusion criteria

  • Age ≥ 18 years
  • Patient taken care by a prehospital medical team participating in the study
  • Diagnosis of tonicoclonic generalized status epilepticus confirmed on the spot by a physician of the team.

Exclusion criteria

Exclusion criteria :

  • Parent or the reliable person indicated by the patient present not giving its agreement for the inclusion
  • Pregnancy clinically detectable or known for close relations at the time of the status epilepticus
  • tonicoclonic generalized status epilepticus after anoxia post cardiac arrest
  • Patient having already received another treatment for the same episode of status epilepticus
  • Patient having already participated in the study during a previous episode of status epilepticus
  • Patient in "latent" status epilepticus. Definition : patient in the coma having epileptic demonstrations (CLONISMS MYOCLONISMS) small or invalid, contrasting with permanent generalized electric seizures on the EEG
  • Patient presenting certain diagnosis of pseudo name psychogenic seizure
  • Patient whose neurological status requires an immediate surgery (traumatism)
  • Patient having a hyper-responsiveness about the levetiracetam or about the other by-products of pyrrolidone or an one of the excipients
  • Patient having a hyper-responsiveness about the clonazepam, about the benzodiazepins or about one of the other constituents of the product
  • Patient under medical guardianship
  • Not membership in a schema of medical assurance.
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Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
203 participants (actual)

Study arms

  • Experimental
    Clonazepam + levetiracetam

    Clonazepam IV 1 mg+ levetiracetam IV 2500 mg

    Drug: Levetiracetam/Clonazepam

  • Active comparator
    Clonazepam + placebo

    Clonazepam IV 1 mg + placebo levetiracetam IV

    Drug: Clonazepam/Placebo levetiracetam IV

Interventions

  • DrugLevetiracetam/Clonazepam

    Association of two anti-epileptic drugs in first line

    Also known as: Association of two anti-epileptic drugs in first line

  • DrugClonazepam/Placebo levetiracetam IV

    Association of placebo to an active comparator (clonazepam)

    Also known as: Association of placebo to an active comparator (clonazepam)

06

What researchers measure

Primary outcomes

  1. Patient's percentage having stopped convulsing in the 15 minutes following the injection. The stop of the crisis is defined as the stop of all epileptic movements (myoclonic, clonic or tonic)

    Time frame: 15 minutes

Secondary outcomes

  1. Period between the first injection and the clinical stop of the convulsion

    Time frame: up to 15 minutes

  2. Period between the first injection and the presence of signs of awakening

    Time frame: up to three days

  3. Time of hospitalization

    Time frame: up to 15 days

  4. Patient's percentage having received the second injection of clonazepam to T5 min

    Time frame: 5 minutes

  5. Patient's percentage having received an injection of second anticonvulsivant to T15 min

    Time frame: 15 minutes

  6. Patient's percentage presenting signs of awakening to T35 min

    Time frame: 35 minutes

  7. Patient's percentage having been intubated for the general anesthesia

    Time frame: 35 minutes

  8. Score of glasgow coma scale for the patients with no signs of awakening to T35 and to the arrival of the hospital

    Time frame: up to 35 minutes

  9. Patient's percentage having had a recurrence of epileptic seizure during the hospital follow-up

    Time frame: up to 15 days

  10. Patient's percentage presenting convulsions or signs of awakening to the arrival to the hospital

    Time frame: up to 15 days

  11. Frequency of adverse events and their severity

    Time frame: up to 15 days

  12. Frequency of respiratory, hemodynamic and cardiac occurence of complications

    Time frame: up to 15 days

  13. Analysis of the main criteria of efficiency by sous groups according to the etiology of the generalised tonic-clonic status epilepticus and according to this duration during the therapeutic clinical care

    Time frame: up to 15 days

07

Study locations

1 site
  • Necker Hospital
    Paris, 75015, France
08

References and documents

Publications

  • Navarro V, Dagron C, Elie C, Lamhaut L, Demeret S, Urien S, An K, Bolgert F, Treluyer JM, Baulac M, Carli P; SAMUKeppra investigators. Prehospital treatment with levetiracetam plus clonazepam or placebo plus clonazepam in status epilepticus (SAMUKeppra): a randomised, double-blind, phase 3 trial. Lancet Neurol. 2016 Jan;15(1):47-55. doi: 10.1016/S1474-4422(15)00296-3. Epub 2015 Nov 28. PubMed 26627366 ↗
  • Navarro V, Dagron C, Demeret S, An K, Lamhaut L, Bolgert F, Baulac M, Carli P. A prehospital randomized trial in convulsive status epilepticus. Epilepsia. 2011 Oct;52 Suppl 8:48-9. doi: 10.1111/j.1528-1167.2011.03236.x. PubMed 21967362 ↗
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 15, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT01150331
Lead sponsor
Assistance Publique - Hôpitaux de Paris
Collaborators
URC-CIC Paris Descartes Necker Cochin
Responsible party
Sponsor
First posted
Jun 24, 2010
Start date
Jul 2009
Primary completion
May 2013
Completion
Oct 2013
Last update
Jan 15, 2026

Study contacts

Pierre Carli, MD, PhD
study chair · Assistance Publique - Hôpitaux de Paris

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Jan 2026. You cannot join it, but the record below documents what was studied.

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