Phase 2b Randomized, Double-blind, Placebo-controlled Crossover Study Evaluating the Efficacy and Safety of Zagociguat in Participants With MELAS (PRIZM)

Status: Active_not_recruiting
Location: See all (23) locations...
Intervention Type: Drug
Study Type: Interventional
Study Phase: Phase 2
SUMMARY

PRIZM is a Phase 2b randomized, double-blind, placebo-controlled, 3-treatment, 2-period, crossover study evaluating the efficacy and safety of oral zagociguat 15 and 30 mg vs. placebo when administered daily for 12 weeks in participants with genetically and phenotypically defined MELAS.

Eligibility
Participation Requirements
Sex: All
Minimum Age: 18
Maximum Age: 75
Healthy Volunteers: f
View:

• Signed consent form.

• 18 to 75 years of age.

• Diagnosed with MELAS based on the presence of each of the following criteria:

‣ A documented pathogenic variant in a mitochondrial DNA (mtDNA) gene.

⁃ History of one or more stroke-like episodes (SLEs) with magnetic resonance imaging (MRI) findings consistent with stroke-like lesions.

• Scores below normal average on the iDSST and GMLT.

• Reports fatigue due to MELAS.

• Can complete at least 1 sit-to-stand in the 30-second test interval.

• Completes all at-home weekly activities independently during the Screening Period (caregiver may help set up device/app, log-in, etc.).

• Other criteria per the protocol.

Locations
United States
California
UC San Diego - Altman Clinical and Translational Research Institute
La Jolla
Colorado
Children's Hospital of Colorado
Aurora
Georgia
Rare Disease Research
Atlanta
Massachusetts
Massachusetts General Hospital
Boston
Maryland
Johns Hopkins University School of Medicine
Baltimore
Minnesota
Mayo Clinic Rochester
Rochester
New York
Columbia University Irving Medical Center
New York
Mount Sinai - Ichan School of Medicine
New York
Ohio
Akron Children's Hospital
Akron
Pennsylvania
Children's Hospital of Philadelphia
Philadelphia
Texas
Baylor College of Medicine
Houston
University of Texas Medical School at Houston
Houston
Other Locations
Australia
Royal Melbourne Hospital
Melbourne
Neuroscience Research Australia
Sydney
Canada
McMaster University Medical Center
Hamilton
Shared Health/University of Manitoba
Winnipeg
Germany
University Hospital Bonn
Bonn
Ludwig-Maximilians-University of Munich
Munich
Italy
Neurologic Institute Carlo Besta of Milan
Milan
University of Pisa Neurological Clinic
Pisa
Fondazione Policlinico Universitario Agostino Gemelli
Roma
United Kingdom
UCL Queen Square Institute of Neurology
London
Newcastle University
Newcastle Upon Tyne
Time Frame
Start Date: 2024-09-10
Completion Date: 2026-06-20
Participants
Target number of participants: 44
Treatments
Experimental: Placebo then Zagociguat 15mg
Participants first receive placebo once a day for 12 weeks. Then after a 4 week washout, they receive zagociguat 15 mg once a day for 12 weeks.
Experimental: Zagociguat 15mg then Placebo
Participants first receive zagociguat 15 mg once a day for 12 weeks. Then after a 4-week washout, they receive placebo once a day for 12 weeks.
Experimental: Placebo then Zagociguat 30mg
Participants first receive placebo once a day for 12 weeks. Then after a 4-week washout, they receive zagociguat 30 mg once a day for 12 weeks.
Experimental: Zagociguat 30mg then Placebo
Participants first receive zagociguat 30 mg once a day for 12 weeks. Then after a 4-week washout, they receive placebo once a day for 12 weeks.
Related Therapeutic Areas
Sponsors
Leads: Tisento Therapeutics

This content was sourced from clinicaltrials.gov

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