Study to Evaluate the Safety and Efficacy of USL261 (Intranasal Midazolam) in Patients With Seizure Clusters (ARTEMIS1)
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ClinicalTrials.gov Identifier: NCT01390220 |
Recruitment Status :
Terminated
First Posted : July 8, 2011
Results First Posted : May 31, 2019
Last Update Posted : October 10, 2019
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
Epilepsy | Drug: USL261 Drug: Placebo | Phase 3 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 292 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Triple (Participant, Investigator, Outcomes Assessor) |
Primary Purpose: | Treatment |
Official Title: | A Randomized, Double-blind, Placebo-controlled Study of the Safety and Efficacy of Intranasal Midazolam (USL261) in the Outpatient Treatment of Subjects With Seizure Clusters. ARTEMIS-1: Acute Rescue Therapy in Epilepsy With Midazolam Intranasal Spray-1 |
Actual Study Start Date : | June 2011 |
Actual Primary Completion Date : | March 2017 |
Actual Study Completion Date : | March 2017 |

Arm | Intervention/treatment |
---|---|
Experimental: USL261
intranasal midazolam 5mg
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Drug: USL261
Other Name: Midazolam nasal spray (MDZ NS) |
Experimental: Placebo
Intranasal placebo
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Drug: Placebo |
- Participants Who Met the Criteria for Treatment Success After Administration of the Double-blind Dose in the Comparative Phase (CP) [ Time Frame: 6 hours ]Treatment Success is defined as achieving both of the following: 1) termination of seizure(s) within 10 minutes after double-blind study drug administration, and 2) no recurrence of seizure(s) beginning 10 minutes after study drug administration to 6 hours after study drug administration. Participants who received the open-label second dose within 6 hours of administration of the double-blind dose were analyzed as having had a seizure.
- Participants With Seizure(s) >10 Minutes to 4 Hours After Administration of the Double-blind Dose [ Time Frame: 4 hours ]Participants with recurrence of seizure(s) >10 minutes and up to 4 hours after administration of the double-blind dose in the CP. Participants who received the open-label second dose within 4 hours of administration of the double-blind dose were analyzed as having had a seizure.
- Occurrence of Seizure With a Start Time >10 Minutes After Administration of the Double-blind Dose [ Time Frame: 24 hours ]Occurrence of next seizure with a start time >10 minutes and up to 24 hours after administration of the double-blind dose in the CP. Participants who did not have another seizure before the end of the 24-hour observation period were censored at the end of the observation period. Participants administered the open-label second dose who did not have a seizure were censored at the time of the administration.
- Time to Next Seizure With a Start Time >10 Minutes After Administration of the Double-blind Dose [ Time Frame: 24 hours ]Time to next seizure with a start time >10 minutes and up to 24 hours after administration of the double-blind dose in the CP. Participants who did not have another seizure before the end of the 24-hour observation period were censored at the end of the observation period. Participants administered the open-label second dose who did not have a seizure were censored at the time of the administration.

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Ages Eligible for Study: | 12 Years and older (Child, Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Has a competent, adult caregiver who can recognize and observe the subject's seizure cluster episodes
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Has an established diagnosis of partial or generalized epilepsy that includes the following:
- A documented history of seizure clusters lasting a minimum of 10 minutes
- Seizure cluster pattern is observable, stereotyped, and recognizably different from the subject's other non-cluster seizure activity (if any)
- A second seizure in the seizure cluster typically occurring within 6 hours from the time of cluster recognition
- A seizure cluster pattern composed of multiple (≥ 2) partial or generalized seizures
- A seizure cluster pattern established > 3 months before Visit 1
- A frequency of ≥ 3 seizure clusters during the year before Visit 1
- At least 1 seizure cluster occurring ≤ 4 months before Visit 1
- Seizure cluster pattern is confirmed by a central reviewer
- Currently on a stable regimen of anti-epileptic drugs (AEDs) with no changes in type of AEDs since Visit 1 and for ≥ 7 days before Visit 2, with or without intermittent use of benzodiazepines at a constant dose
- Weight is 40 kg to 125 kg, inclusive
Exclusion Criteria:
- Has a neurological disorder that is likely to progress in the next year
- Has severe chronic cardio-respiratory disease
- Has had psychogenic, non-epileptic seizure(s) within the 5 years before Visit 1
- Has a history of their stereotypical seizure cluster progressing to status epilepticus within the 2 years before Visit 1
- Has a history of acute narrow-angle glaucoma.
- Has had active suicidal plan/intent or active suicidal thoughts in the 6 months before Visit 1 or a suicide attempt in the past 5 years
- Currently using a vagal nerve stimulator (VNS) unless the device has been implanted for at least 6 months and the setting stable for 4 weeks before Visit 1

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01390220

Documents provided by UCB Pharma ( UCB Biopharma S.P.R.L. ):
Responsible Party: | UCB Biopharma S.P.R.L. |
ClinicalTrials.gov Identifier: | NCT01390220 |
Other Study ID Numbers: |
P261-401 2011-001318-32 ( EudraCT Number ) |
First Posted: | July 8, 2011 Key Record Dates |
Results First Posted: | May 31, 2019 |
Last Update Posted: | October 10, 2019 |
Last Verified: | October 2019 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Epilepsy seizure clusters acute repetitive seizures rescue treatment ARTEMIS |
Epilepsy Seizures Brain Diseases Central Nervous System Diseases Nervous System Diseases Neurologic Manifestations Midazolam Adjuvants, Anesthesia Hypnotics and Sedatives Central Nervous System Depressants Physiological Effects of Drugs |
Anti-Anxiety Agents Tranquilizing Agents Psychotropic Drugs Anesthetics, Intravenous Anesthetics, General Anesthetics GABA Modulators GABA Agents Neurotransmitter Agents Molecular Mechanisms of Pharmacological Action |