Treatment of Established Status Epilepticus in the Elderly - a prospective, randomized, double-blind comparative effectiveness trial

2024-516634-35-00 Protocol ToSEE Therapeutic use (Phase IV) Ongoing, recruiting

Start 1 Feb 2024 · Status Ongoing, recruiting · 1 EU/EEA countries · 13 sites · Protocol ToSEE

Overview

Sponsor-declared trial summary

Phase Therapeutic use (Phase IV)
Status Ongoing, recruiting
Participants planned 132
Countries 1
Sites 13

Convulsive or nonconvulsive benzodiazepine-resistant (established) status epilepticus (eSE) in people 65 years or older

Primary goal is to generate evidence for the treatment of established SE in an elderly population.

Key facts

Sponsor
Universitaet Leipzig
Participant type
Patients
Age range
65+ years
Gender
Male and Female
Therapeutic area
Diseases [C] - Nervous System Diseases [C10]
Trial duration
1 Feb 2024 → ongoing
Decision date (initial)
2024-10-11
Transition trial
Yes
Low-intervention
No
Rare-disease indication
No
Vulnerable population
Yes

External identifiers

EU CT number
2024-516634-35-00
EudraCT number
2018-003917-16

Trial design

CTIS Part I — objectives, methods, condition coding

Main objective

Scope: Therapy

Primary goal is to generate evidence for the treatment of established SE in an elderly population.

Conditions and MedDRA coding

Convulsive or nonconvulsive benzodiazepine-resistant (established) status epilepticus (eSE) in people 65 years or older

VersionLevelCodeTermSystem organ class
20.0 PT 10041962 Status epilepticus 100000004852

Eligibility criteria

Principal inclusion / exclusion criteria as submitted by sponsor

Inclusion criteria 1

  1. Adult patients ≥ 65 years old with ongoing convulsive SE (generalized CSE/focal CSE with impaired consciousness/focal CSE without impaired consciousness), as defined by a seizure lasting ≥ 5 minutes or 2 or more convulsive seizures without full recovery of consciousness ≥ 5 minutes, or nonconvulsive SE (NCSE with coma/ NCSE without coma) defined as ongoing EEG patterns consistent with definite or possible NCSE according to the Salzburg criteria (Leitinger et al. 2016), or clinically defined NCSE non-responding to treatment with AT LEAST • Lorazepam 2 mg (i.v.) • Midazolam 5 mg (i.v., buccal, intranasal, i.m.) • Diazepam 5 mg (i.v., rectal) • Clonazepam 1 mg (i.v.)

Exclusion criteria 1

  1. • Treatment of SE with other antiepileptic drugs/sedatives before enrollment • Intravenous application of VPA or LEV in the last 24 hours before enrollment. • Known or suspected severe liver or pancreatic disease (alcohol addiction, known liver cirrhosis or familial liver diseases, clinical signs of severe liver disease such as ascites, jaundice) • Known concomitant treatment with one or several of the following medications: phenobarbital, phenytoin, carbamazepine, carbapenem antibiotics, rifampicin, erythromycin, cimetidine, primidone, mefloquine, fluoxetine, felbamat, lopinavir, ritonavir • Known coagulopathy (anticoagulants allowed) • Known porphyria, mitochondriopathy and urea cycle disorders • Known severe kidney disease (GFR < 30ml/min) • Hypoglycemia (< 3.3 mmol/l) • Estimated weight < 45kg. • Need for acute neurosurgical treatment. • Known cardiopulmonary resuscitation within the last 7 days before enrollment • Known hypersensitivity against VPA or LEV • Known participation in other interventional trials • Known former participation in this trial

Endpoints

Primary and secondary outcome measures (English text)

Primary endpoints 1

  1. Primary endpoint is the effectiveness of intravenous valproate (VPA) or levetiracetam (LEV) to terminate eSE and maintain control of epileptic activity up to 60 minutes after initiation of the trial intervention

Investigational products

Investigational medicinal products (IMPs), comparators, placebo, auxiliary

Test 2

Valproate Semisodium

SCP100375882 · ATC

Active substance
Valproate Semisodium
Substance synonyms
DIVALPROEX SODIUM
Route of administration
INFUSION
Max daily dose
3 g gram(s)
Max total dose
3 g gram(s)
Max treatment duration
1 Month(s)
Authorisation status
Authorised
ATC code
N03AG01 — VALPROIC ACID
Marketing authorisation
-
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Levetiracetam

SCP1053884 · ATC

Active substance
Levetiracetam
Substance synonyms
S-ETIRACETAM
Route of administration
INFUSION
Max daily dose
4.5 g gram(s)
Max total dose
4.5 g gram(s)
Max treatment duration
1 Month(s)
Authorisation status
Authorised
ATC code
N03AX14 — LEVETIRACETAM
Marketing authorisation
-
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Sponsors and contacts

Sponsor organisations, regulatory contacts, third parties

Universitaet Leipzig

Sponsor organisation
Universitaet Leipzig
Address
Ritterstrasse 26, Zentrum Zentrum
City
Leipzig
Postcode
04109
Country
Germany

Scientific contact point

Organisation
Universitaet Leipzig
Contact name
Anett Schmiedeknecht

Public contact point

Organisation
Universitaet Leipzig
Contact name
Anett Schmiedeknecht

Locations

1 EU/EEA country · 13 investigational sites

By country

CountryMS statusPlanned subjectsSites
Germany Ongoing, recruiting 132 13
Rest of world 0

Investigational sites

Germany

13 sites · Ongoing, recruiting
Universitaetsklinikum Erlangen AöR
Neurologische Klinik, Schwabachanlage 6, Innenstadt, Erlangen
Universitaetsklinikum Ulm AöR
Klinik für Neurologie, Oberer Eselsberg 45, Eselsberg, Ulm
Universitaetsklinikum Giessen und Marburg GmbH
Klinik für Neurologie, Baldingerstrasse 1, 35043, Marburg
Vivantes Netzwerk fuer Gesundheit GmbH
Klinik für Neurologie, Am Nordgraben 2/1, Wittenau, Berlin
Klinikum Dortmund gGmbH
Klinik für Neurologie, Beurhausstrasse 40, Mitte, Dortmund
Klinikum Kassel GmbH
Klinik für Neurologie, Moenchebergstrasse 41-43, Fasanenhof, Kassel
Evangelische Krankenhausstiftung Oldenburg
Universitätsklinik für Neurologie, Steinweg 13-17, Innenstadt, Oldenburg
Universitaetsmedizin Greifswald KöR
Klinik und Poliklinik für Neurologie, Ferdinand-Sauerbruch-Strasse, 17489, Greifswald
Charite Universitaetsmedizin Berlin KöR
Klinik für Neurologie, Chariteplatz 1, Mitte, Berlin
Carl-von-Basedow-Klinikum Saalekreis gGmbH
Klinik für Neurologie, Weisse Mauer 52, 06217, Merseburg
Klinikum Osnabrueck GmbH
Neurologische Klinik, Am Finkenhuegel 1-3, Westerberg, Osnabrueck
Universitaetsklinikum Essen AöR
Klinik für Neurologie, Hufelandstrasse 55, Holsterhausen, Essen
Universitaet Leipzig
Klinik und Poliklinik für Neurologie, Liebigstrasse 20, Zentrum-Suedost, Leipzig

Country notifications

Trial-start, recruitment-start, end and early-termination notifications submitted per Member State

Country Trial startTrial end Recruitment startRecruitment end Early termination
Germany 2020-08-26 2021-02-06

Oversight and notifications

Regulatory notifications under CTR Articles 38, 52, 53, 54 and 77

Temporary halts 1 · Art. 38 CTR

Temporary halt TH-51442

Halt date
2023-08-01
Member states concerned
Germany
Publication date
2024-10-14
Reason
Sponsor decision
Explanation
The break in recruitment and treatment became necessary because the requested prolongation of the trial had not yet been approved by the BMBF. For this reason, no new batch of the trial-specific IMPs could be produced and, as a result, no patients could be included and treated in the trial.
Benefit-risk balance changed
No
Treatment stopped
No

Results and documents

Annex IV summary of results, Annex V layperson summary, and all documents registered in CTIS for this trial

Documents 8 files

Public protocol annexes, IB summaries, regulatory submissions and post-authorisation documents registered in CTIS.

TypeTitleVersion
Protocol (for publication) ToSEE_trial_protocol_p 1
Recruitment arrangements (for publication) ToSEE_recruitment 1
Subject information and informed consent form (for publication) ToSEE_informed_consent_assess_emergency_situation 3
Subject information and informed consent form (for publication) ToSEE_informed_consent_authorized_representative 5
Subject information and informed consent form (for publication) ToSEE_informed_consent_patient 5
Subject information and informed consent form (for publication) ToSEE_informed_consent_witness_regulation 2
Summary of Product Characteristics (SmPC) (for publication) ToSEE_SmPC_Levetiracetam 1
Summary of Product Characteristics (SmPC) (for publication) ToSEE_SmPC_Orfiril 1

Application history

2 submissions — initial application plus substantial / non-substantial modifications

#TypeCodeSubmittedReference MSConclusionDecision date
1 INITIAL IN 2024-09-23 Germany Acceptable
2024-10-08
2024-10-11
2 SUBSTANTIAL MODIFICATION SM-1 2025-07-28 Germany Acceptable 2025-08-07