Ireland
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Clinical Trials in the EU / 2025-523821-17-00
Authorised, recruiting Phase III

A Phase 3, Randomized, Double-blind, Placebo-Controlled, Efficacy and Safety Study of HBS-301 in Participants with Narcolepsy Followed by an Open-label Extension

2025-523821-17-00 · tracked via the Priya Life Science EU tracker
Sponsor type
Pharmaceutical company
Therapeutic area
Nervous System Diseases
Decision date
25/08/2026
Enrollment target
92
Sites
Belgium, Italy, Germany, France, Spain, Poland

Condition studied

narcolepsy

Investigational medicinal product(s)

PitolisantPlacebo will be provided as roundbiconvex enteric-coated tablets matching CCI of HBS-301. The CCI tablets are beige to light brown. The tablets are also debossed on 1 side with CCI.biconvex enteric-coated tablets matching CCI tablets of HBS-301. The CCI tablets are blue-green. he tablets are also debossed on 1 side with CCI."Placebo will be provided as roundbiconvex enteric-coated tablets matching CCI tablets of HBS-301. The CCI tablets are blue-violet. he tablets are also debossed on 1 side with CCI.

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Eligibility

Age group
18-64 years, 65+ years
Sex
Female, Male

Primary endpoint

Change in severity of EDS as measured by the ESS from Baseline to the end of the Double-blind Treatment Period

Endpoint detail

1. WRC at the end of the Double-blind Treatment Period in participants with an CCI weeks during Screening, 2. Change in sleepiness/wakefulness as measured by the MWT from Baseline to the end of the Double-blind Treatment Period, 3. Zmiana w CCI mierzona za pomocą CCI od wizyty wyjściowej do zakończenia okresu leczenia prowadzonego metodą podw. ślepej próby, 4. Change in severity of EDS as measured by the ESS from Baseline through CCI of the Titration Period, 5. Change in severity of EDS as measured by the ESS from Baseline through CCI of the Titration Period, 6. WRC at CCI of the Titration Period in participants with an CCI weeks during Screening, 7. WRC at CCI of the Titration Period in participants with an CCI weeks during Screening

Official registry record

This page summarises publicly available CTIS data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.

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