E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Treatment of stereotypical prolonged seizure |
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E.1.1.1 | Medical condition in easily understood language |
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E.1.1.2 | Therapeutic area | Diseases [C] - Nervous System Diseases [C10] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10076333 |
E.1.2 | Term | Prolonged seizure |
E.1.2 | System Organ Class | 10029205 - Nervous system disorders |
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E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
Evaluation of the long-term safety and tolerability of Staccato alprazolam |
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E.2.2 | Secondary objectives of the trial |
- Evaluation of the probability of success of repeated treatment with Staccato alprazolam (for seizures occurring within the first 12 months [up to a maximum of 10 treated seizures]) - Evaluation of the probability of success of repeated treatment with Staccato alprazolam with no recurrence of seizure(s) up to 2 hours (for seizures occurring within the first 12 months [up to a maximum of 10 treated seizures]) - Evaluation of the long-term pulmonary safety of Staccato alprazolam |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
- Participant must be ≥12 years of age at the time of signing informed consent (or giving assent, where required) - Participant must have a study caregiver ≥18 years of age at the time of signing the informed consent; the study caregiver(s) must be able to recognize and observe the participant - Participants with an established diagnosis of focal or generalized epilepsy or combined focal and generalized epilepsy with a documented history of stereotypical episodes of prolonged seizures that includes at least 1 of the following: a) Generalized seizure episodes starting with a flurry of absence seizures or myoclonic seizures with a minimum total duration of 5 minutes b) Episodes of a focal seizure with a minimum duration of 3 minutes c) Episodes of a focal seizure or a flurry of myoclonic seizures for at least 90 seconds followed by a generalized/bilateral tonic-clonic seizure with a minimum total duration of 3 minutes - Prior to the Screening Visit, participant completed a study using Staccato alprazolam - Male and female participants: a) A male participant must agree to use contraception during the Treatment Period and for at least 7 days after investigational medicinal product (IMP) administration b) A female participant is eligible to participate if she is not pregnant, not breastfeeding, and: i) Not a woman of childbearing potential (WOCBP) OR ii) A WOCBP who agrees to follow the contraceptive guidance during the Treatment Period and for at least 30 days after IMP administration - Participant is capable of giving signed informed consent (or giving assent, where required). The informed consent form (ICF) or a specific assent form, where required, will be signed and dated by minors - The participant’s caregiver(s) must be capable of giving signed informed, which includes compliance with the requirements and restrictions listed in the ICF, the protocol, and the individualized participant management plan (iPMP)
Additional inclusion criteria for treatment arms 2 to 5: Prior to the Screening Visit, the participant completed the Phase 3 efficacy study with Staccato alprazolam (EP0162) at a clinical site located in the EU, UK, and UA, and experienced an IMP-treated seizure during the Outpatient Treatment Period.
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E.4 | Principal exclusion criteria |
- Participant has a current history of alcohol or drug use disorder, as defined in the Diagnostic and Statistical Manual of Mental Disorders 5, within the previous 1 year - Participant has a known hypersensitivity to any components of the investigational medicinal product (IMP) or comparable drugs (and/or an investigational device) as stated in this protocol or to albuterol (or similar bronchospasm rescue medication if needed to meet country- specific requirements) - Participant has a history of convulsive (generalized tonic-clonic) status epilepticus in the 8 weeks prior to the Screening Visit - Participant has a history or presence of known nonepileptic seizures which cannot be distinguished from qualifying epileptic seizures - Participant has a clinically significant known airway hypersensitivity (eg, bronchospasm to known allergens, such as pollen, animals, or food) and/or acute respiratory signs/symptoms (eg, shortness of breath, wheezing on lung auscultation) - Participant has a clinically significant chronic pulmonary disorder other than mild asthma (eg, chronic obstructive pulmonary disease, restrictive lung diseases [including idiopathic pulmonary fibrosis]) and/or recent history or presence of hemoptysis or pneumothorax - Participant has had a positive antigen test for SARS-CoV-2 and experienced moderate to severe signs/symptoms of respiratory distress necessitating hospitalization or outpatient treatment such as ambulatory oxygen, extensive treatment with inhaler medications, and/or oral medications for a duration of 4 weeks or more, unless full resolution occurred at least 6 months prior to Screening - Participant has experienced a severe upper respiratory tract infection within 4 weeks or severe bronchitis/pneumonia within 3 months before the Screening Visit - Participant has a history or presence of acute narrow-angle glaucoma - Participant has a condition for which oral alprazolam is contraindicated (eg, myasthenia gravis, severe respiratory insufficiency, and sleep apnea syndrome) - Participant has a history or presence of long QT syndrome, a family history of sudden death due to long QT syndrome, or unexplained syncope - Participant is taking any drug that is a strong CYP3A4 inhibitor, including azole antifungal agents (ketoconazole and itraconazole) and nefazodone - Participant is taking any opioids (eg, fentanyl, oxycodone, morphine) or sedative hypnotics on a chronic basis - Participant is taking nonselective beta blockers on a chronic basis
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E.5 End points |
E.5.1 | Primary end point(s) |
1. Frequency of treatment-emergent adverse events (TEAEs) 2. Frequency of TEAEs leading to withdrawal from study 3. Frequency of serious TEAEs |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
1&3: From Baseline up to the End of Study Visit (up to 48 months) |
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E.5.2 | Secondary end point(s) |
1. Treatment success after investigational medicinal product (IMP) administration for seizures occurring within the first 12 months 2. Treatment success after IMP administration with no recurrence after 2 hours for seizures occurring within first 12 months 3. Frequency of respiratory TEAEs |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
1&2: From start of IMP treatment up to 12 months 3: From Baseline up to the End of Study Visit (up to 48 months) |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | Yes |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | Yes |
E.6.13.1 | Other scope of the trial description |
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E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | Yes |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | Yes |
E.8.1.2 | Open | Yes |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | Yes |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | Yes |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | Yes |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 5 |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 9 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 100 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | Yes |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |
Ukraine |
Australia |
China |
Japan |
United Kingdom |
United States |
Bulgaria |
Czechia |
Germany |
Hungary |
Italy |
Poland |
Spain |
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E.8.7 | Trial has a data monitoring committee | Yes |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 4 |
E.8.9.1 | In the Member State concerned months | 1 |
E.8.9.1 | In the Member State concerned days | 6 |
E.8.9.2 | In all countries concerned by the trial years | 5 |
E.8.9.2 | In all countries concerned by the trial months | 2 |
E.8.9.2 | In all countries concerned by the trial days | 25 |