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Study details
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HL-400 Trial

Highlightll Pharmaceutical (USA) LLC
NCT IDNCT06997484ClinicalTrials.gov data as of Apr 2026
Phase

Phase 1

Target enrollment

54

Study length

about 10 months

Ages

18–65

Locations

1 site in MD

What this study is about

Researchers are testing a new drug called HL-400 in people with Parkinson's Disease. The trial will evaluate the safety and how the body processes HL-400 after taking it as a single dose or multiple doses over 308 days.

Simplified from trial records by PatientMatch.

What you may be asked to do

  • 1.Take HL-400
  • 2.Take Placebo

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
Standard assignment

Assignment is predetermined by the study protocol.

Extracted study details

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

Endpoints

Primary: Change in 12-lead electrocardiogram (ECG) parameters (PR Interval, QRS Complex, QT Interval, QTC Interval) from baseline, Multiple Ascending Dose (MAD) Cohorts: Maximum observed plasma concentration (Cmax) of HL-400, Number and percentage of adverse events (AEs) according to severity, Number and percentage of participants with adverse events (AEs), Single Ascending Dose (SAD) Cohorts: Maximum observed plasma concentration (Cmax) of HL-400, Single Ascending Dose (SAD) Cohorts: Plasma decay half-life (t1/2) of HL-400, Single Ascending Dose (SAD) Cohorts: Time to reach maximum observed plasma concentration (Tmax) of HL-400

Secondary: 1.The cerebrospinal fluid (CSF) cohort: Maximum observed concentration (Cmax) of HL-400 in the CSF

Body systems

Neurology