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Study identifier: NCT05027997 Synced from ClinicalTrials.gov · August 10, 2026
● Study status: Completed

Exploratory Study of Dipraglurant (ADX48621) for the Treatment of Patients With Blepharospasm

Condition: Blepharospasm · Dystonia  ·  Sponsor: Addex Pharma S.A.

PhasePhase 2
Planned participants15
Who can joinAll sexes, 18 Years to 85 Years
Healthy volunteersNoCheck eligibility criteria ↓
WhereAtlanta, Georgia, United States
For sponsors, CROs & site teams
Professional view of this study — listed sites, countries and recruiting context from the public registry. Everything below is written for patients and caregivers.Open the site landscape →

About this study

This study is designed to assess the safety and tolerability of dipraglurant in patients with blepharospasm (BSP) (randomized 1:1:1 to receive dipraglurant 50 mg, 100 mg or placebo) and explore the efficacy of 50 mg and 100 mg immediate release tablets (versus placebo) on the severity and frequency of BSP signs and symptoms using objective measures, clinical ratings and patient reported outcomes.

This description comes directly from the study's public registry record.

Talk to the study team

No contact information is available for this study as per the public registry record.

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Full eligibility criteria (exactly as the study team wrote them)

Inclusion Criteria: * Patients with an established diagnosis of idiopathic benign essential blepharospasm * Must have had prior response to to botulinum toxin (BoNT) reported on last 2 consecutive injection cycles * Last injection of BoNT at least 8 weeks prior to Screening assessments * Patient is experiencing features of Blepharospasm (BSP) of moderate severity/frequency at study entry. Exclusion Criteria: * BSP that is known or suspected to be associated with a known cause such as neuroleptic exposure, brain injury or lesion, stroke, Parkinson's disease, or related Parkinsonisms * History of surgical intervention (e.g., deep brain stimulation) or orbital myectomy for dystonia * Disabling eyelid opening apraxia * Other neurological disease (including psychiatric disease and/or cognitive impairment) that, in the opinion of the investigator, would affect the patient's ability to complete study assessments. * Other significant medical condition that may affect the safety of the patient or preclude adequate participation in the study. Other protocol-defined inclusion and exclusion criteria may apply

Reproduced word-for-word from the public registry record — the study team can answer questions about it.

Locations (1)

Emory UniversityAtlanta, Georgia, United States

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Atlanta

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