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Study details
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PRAX-222 Trial for Children with Epilepsy

Praxis Precision Medicines
NCT IDNCT05737784ClinicalTrials.gov data as of Apr 2026
Phase

Phase 1/2

Target enrollment

60

Study length

about 4.5 years

Ages

2–18

Locations

1 site in TN

What this study is about

This trial is testing PRAX-222 in children aged 2 to 18 years who have early onset SCN2A developmental and epileptic encephalopathy (DEE). The goal is to learn about the effect of PRAX-222 on these children.

Simplified from trial records by PatientMatch.

What you may be asked to do

  • 1.Take PRAX-222 - Fixed Doses
  • 2.Take PRAX-222 - Initial Ascending Doses
  • 3.Take PRAX-222 - Initial Dose
  • +2 more

Participation Burden

What's physically and logistically required of participants.

Logistics & Travel
In-person visits

Requires travel to a study site

Physical Intervention
Standard

How treatment is administered

Treatment Assignment
Randomized & Blinded

You may get a placebo/standard care, and you won't know which.

Extracted study details

Pulled from the trial record to show what is being tested and what the study is measuring.

Endpoints

Primary: Number of participants with treatment-emergent adverse events (Preliminary Safety, Dose Escalation)

Secondary: Change from baseline in Caregiver Global Impression-Severity (CgGI-S) score (Confirmatory Phase), Change from baseline in Clinical Global Impression-Severity (CGI-S) score (Confirmatory Phase), Quality of life as assessed by Quality of Life Inventory-Disability (Confirmatory Phase)

Body systems

Neurology