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Clinical Trial Summary

The objective of this study is to assess the long-term safety, tolerability, and efficacy of adjunctive therapy of LP352 in subjects with developmental and epileptic encephalopathies who completed participation in Study LP352-201.


Clinical Trial Description

This Phase 2, multicenter, open-label, multiple-dose extension clinical study is designed to evaluate long-term safety of LP352 in subjects with developmental and epileptic encephalopathy who completed Study LP352-201. The study consists of a Screening Period (Day -1) and a 50-week open-label Treatment Period that includes a 15-day Up-titration Period (during which time subjects will titrate up to their highest tolerated doses) and an open-label Maintenance Period (48 weeks). The Treatment Period will be followed by a Down-titration/Taper Period (up to 15 days) and Follow-up Period (14 days after completion of down-titration). The starting dose of up-titration will be 6 mg TID. The target final maintenance doses are 6 mg TID, 9 mg TID, and 12 mg TID after a 15-day up-titration period, if tolerated. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05626634
Study type Interventional
Source Longboard Pharmaceuticals
Contact Longboard Study Contact
Phone 858-999-8858
Email clinicalstudies@longboardpharma.com
Status Recruiting
Phase Phase 2
Start date November 8, 2022
Completion date October 2024

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