Skip to content

A Single and Multiple Ascending Dose Study of EPX-100 in Healthy Adult Participants

A Randomized, Double-Blind, Placebo-Controlled, Two-Part Study to Assess the Safety and Pharmacokinetics of Ascending Single and Multiple Doses of EPX-100 in Healthy Adult Participants

Status
Recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07879170
Enrollment
88
Registered
2026-10-16
Start date
2026-08-05
Completion date
2026-12-30
Last updated
2026-10-16

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy Participants

Keywords

Multiple Ascending Dose, Single Ascending Dose

Brief summary

A study to evaluate the safety and tolerability of single and multiple ascending doses of EPX-100 in healthy adult participants.

Detailed description

This is a two-part study. Part 1 is a randomized, double-blind, placebo-controlled study to evaluate the safety, tolerability, and pharmacokinetics (PK) of EPX-100 following single ascending doses (SAD). Part 2 is a randomized, double-blind, placebo- and positive-controlled (active comparator) study to evaluate the safety, tolerability, and PK of EPX-100 following multiple ascending doses (MAD). In addition, cardiac liability will be evaluated in each cohort.

Interventions

Oral solution

DRUGEPX-100-Matching Placebo

Oral Solution

DRUGMoxifloxacin

Over-encapsulated tablet

Sponsors

Epygenix
Lead SponsorINDUSTRY
Harmony Biosciences Management, Inc.
CollaboratorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 55 Years
Healthy volunteers
Yes

Inclusion criteria

* Continuous nonsmoker who has not used nicotine- or tobacco-containing products for at least 3 months prior to (first) dosing. * Body mass index ≥18.0 and ≤32.0 kilograms per square meter(kg/m\^2) at the Screening visit (defined as within 28 days prior to dosing). * Medically healthy with no clinically significant medical history, physical examination findings, clinical laboratory profiles, vital signs, and electrocardiograms (ECGs), as deemed by the Principal Investigator (PI) or designee. * Part 2 only: No clinically significant history and presence of ECG findings as judged by the PI or designee at the Screening visit and at Check-In.

Exclusion criteria

* History of cholecystectomy. * Has a family history of sudden cardiac death, unexplained death, or death from a primary dysrhythmia potentially associated with QT prolongation in any family member. * History of any illness that, in the opinion of the PI or designee, might confound the results of the study or poses an additional risk to the participant by their participation in the study. * History of seizure (excluding simple febrile seizure), epilepsy, severe head injury, multiple sclerosis, or other known neurological conditions that the PI or designee considers to be clinically significant. * History of presence of ventricular dysfunction or risk factors for Torsades de Pointes (e.g., heart failure, cardiomyopathy, family history of Long QT Syndrome or sudden unexpected cardiac death at a young age). * Part 2 only: history or presence of sick sinus syndrome, second or third degree atrioventricular block, myocardial infarction, pulmonary congestion, symptomatic or significant cardiac arrhythmia, prolonged QTcF interval, or conduction abnormalities. Note: Additional inclusion/

Design outcomes

Primary

MeasureTime frame
Number of Participants with Treatment Emergent Adverse Events (TEAEs) in Part 1 SADPart 1 SAD: up to Day 18
Number of Participants with TEAEs in Part 2 MADPart 2 MAD: up to Day 31

Secondary

MeasureTime frame
Area Under the concentration-time curve (AUC), From Time 0 to The Last Observed Nonzero Concentration (AUC0-last) of EPX-100 and Metabolites in PlasmaPart 1 SAD: up to Day 4, Part 2 MAD: up to Day 17
AUC0-last of EPX-100 and Metabolites in UrinePart 1 SAD: up to Day 4
Maximum Observed Concentration (Cmax) of EPX-100 and Metabolites in PlasmaPart 1 SAD: up to Day 4, Part 2 MAD: up to Day 17
Cmax of EPX-100 and Metabolites in UrinePart 1 SAD: up to Day 4
Change from Baseline in Electrocardiogram (ECG) QT Interval Corrected According to the Method of Fridericia (QTcF)Part 2 MAD: Baseline and up to Day 16

Countries

United States

Contacts

CONTACTClinical Trials Administrator
clinicaltrials@harmonybiosciences.comsee email
STUDY_DIRECTORRobert Faulkner, PhD

Epygenix Therapeutics, Inc.

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Oct 17, 2026