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April 09, 2019; 92 (15 Supplement) May 5, 2019

A 12-month, open-label, repeat-dose safety study of Valtoco ™ (NRL-1, diazepam nasal spray) in patients with epilepsy: Interim report (P1.5-028)

Michael Sperling, Robert Hogan, Victor Biton, Daniel Tarquinio, Enrique Carrazana, DIAZ 001.05 Study Group
First published April 16, 2019,
Michael Sperling
1Thomas Jefferson University Philadelphia PA United States
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Robert Hogan
2Washington Univ in St Louis/Neuro Dept Saint Louis MO United States
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Victor Biton
3AEP Little Rock AR United States
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Daniel Tarquinio
4Center for Rare Neurological Diseases Norcross GA United States
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Enrique Carrazana
5Neurelis San Diego CA United States
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5Neurelis San Diego CA United States
Citation
A 12-month, open-label, repeat-dose safety study of Valtoco ™ (NRL-1, diazepam nasal spray) in patients with epilepsy: Interim report (P1.5-028)
Michael Sperling, Robert Hogan, Victor Biton, Daniel Tarquinio, Enrique Carrazana, DIAZ 001.05 Study Group
Neurology Apr 2019, 92 (15 Supplement) P1.5-028;

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Abstract

Objective: To assess the long term safety of diazepam after repeat intranasal doses of Valtoco™ (NRL-1, diazepam nasal spray), formulated with Intravail® A3, administered to patients with epilepsy who experience frequent breakthrough seizures or Acute Repetitive Seizures (ARS), over 12-months.

Background: Valtoco is designed as an easy-to-use, non-invasive treatment by care-partners outside the medical setting for bouts of seizures.

Design/Methods: In this repeat dose, open-label trial, Valtoco was administered as needed to treat bouts of diagnosed seizures over a 12-month period of time. Doses were defined as 5 mg, 10 mg, 15 mg, or 20 mg based on the subject’s age and body weight, and were modified by the investigators as needed. Patients diaries documented time and duration of seizures and outcome.

Results: Of the 121 patients enrolled to date in this interim analysis, 109 patients (14 < 12 years of age) received at least one dose of Valtoco and were included in the safety population. There was a total of 1585 seizure episodes treated with Valtoco in 109 patients in the safety population (1 to >40 doses).

A single dose was adequate for seizure control in 92% (1457) of seizure episodes.

Overall, 67 out of 109 patients (61.5%) had at least one adverse event (AE). Nineteen patients (17.4%) had AEs that were considered treatment-related by the Investigator. The most frequent treatment-related events were nasal discomfort (7 patients, 6.4%), and epistaxis, headache (4 patients, 8.2%). Of the 67 patients experiencing AEs, 18 patients had 30 AEs that were considered serious, none of which was considered treatment-related by the Investigators.

Conclusions: Overall, this study demonstrates that Valtoco is safe and well tolerated in subjects with epilepsy who have frequent breakthrough seizures. Relatively few of the reported AEs were treatment related, and these were generally mild or moderate in severity. No SAEs were attributable to Valtoco.

Disclosure: Dr. Sperling has received personal compensation for consulting, serving on a scientific advisory board, speaking, or other activities with Medtronic. Dr. Sperling has received research support from Eisai, Medtronic, Neurelis, Pfizer, SK Life Science, Takeda, Sunovion, UCB Pharma and Upsher-Smith. Dr. Hogan has received personal compensation for consulting, serving on a scientific advisory board, speaking, or other activities with SK Chemical. Dr. Hogan has received research support from UCB Pharmaceuticals, Neurelis Pharnaceuticals, Biogen Inc. Dr. Biton has nothing to disclose. Dr. Tarquinio has received personal compensation for consulting, serving on a scientific advisory board, speaking, or other activities with Marinus and Avexis. Dr. Carrazana has received personal compensation for consulting, serving on a scientific advisory board, speaking, or other activities with Neurelis, Marinus, Zogenix, Praxis, Adamas, Ovid, Epalex, Aeromics, Alexza. Dr. Carrazana has received compensation for serving on the Board of Directors of Marinus Pharmaceuticals, Epalex. Dr. Novack has nothing to disclose.

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