First-in-Human Single and Multiple Dose of HL-400

Recruiting now · Phase 1 · Has a placebo group

Conditions studied: Parkinson Disease

In brief

This is a randomized, double-blind, placebo-controlled, dose-escalation study in healthy subjects to evaluate the safety, tolerability, pharmacokinetics of HL-400 (a NLRP3 inhibitor) following oral single and multiple ascending dose administration.

Key facts

Study ID

NCT06997484

Run by

Highlightll Pharmaceutical (USA) LLC

People needed

86

Starts

2025-04-25

Expected to finish

2026-10-27

Last updated by the study team

2026-04-17

Who can join

Age: 18 and older, up to 65. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• Are capable of giving written informed consent and complying with study procedures, schedule, requirements, and restrictions.
• Are between the ages of 18 and 65 years, inclusive, at screening.
• Female subjects have a negative serum hCG pregnancy test result at screening andDay （-1）, agree to refrain from ova donation for at least 3 months after the last dose, and willingness to comply with protocol-specified contraceptive methods.
• Male subjects with female partners of reproductive potential must agree to practice abstinence or to use a condom (male subject) plus an additional barrier method (female partner) of contraception for the duration of the study and for at least 3 months after last dosing; must also agree to refrain from sperm donation for at least 3 months after the last dose.
• Considered healthy by the Investigator, based on subject's reported medical history, full physical examination, clinical laboratory tests, 12-lead ECG, and vital signs.
• Non-smoker for at least 6 months prior to screening.
• Body mass index (BMI) of 18.0 to 32.0 kg/m2 inclusive, except for MAD Cohort 3 subjects with a BMI of of 32.0 to 42.0 kg/m2 inclusive.

You may not qualify if…

• Clinically significant history of gastrointestinal, cardiovascular, musculoskeletal, endocrine, hematologic, psychiatric, renal, hepatic, bronchopulmonary, neurologic, immunologic, lipid metabolism disorders, or drug hypersensitivity as determined by the Investigator.
• Pregnant (as determined by pregnancy test result) or breastfeeding women.
• History of chronic diarrhea, malabsorption, unexplained weight loss, food allergies or intolerance.
• Positive blood screen for human immunodeficiency virus (HIV 1/2), hepatitis B surface antigen (HBsAg), or hepatitis C antibody.
• A positive screen for alcohol or drugs of abuse at screening or Day -1.
• An unwillingness or inability to comply with food and beverage restrictions during study participation.
• Volunteers who have participated in any investigational drug or device study within past 3 months prior to dosing.
• Any condition or finding that in the Investigators opinion would put the subject or study conduct at risk if the subject were to participate in the study.

Where it is running

• Pharmaron CPC, Inc. — Baltimore, Maryland, United States (enrolling)

Full record on ClinicalTrials.gov

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