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A First-in-Human Multi-Part Phase 1 Study in Healthy Volunteers to Evaluate the Safety, Tolerability, Pharmacokinetics, and Drug-Drug Interaction Potential of Single and Multiple Doses of ALG-097558

A First-in-Human Multi-Part Phase 1 Study in Healthy Volunteers to Evaluate the Safety, Tolerability, Pharmacokinetics, and Drug-Drug Interaction Potential of Single and Multiple Doses of ALG-097558

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05840952
Enrollment
90
Registered
2023-05-03
Start date
2023-07-04
Completion date
2024-04-29
Last updated
2025-04-08

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

Conditions

COVID-19

Keywords

Healthy Volunteer

Brief summary

A multi-part study of ALG-097558 to evaluate safety, tolerability, pharmacokinetics and drug-drug interaction potential after single and multiple doses in healthy volunteers

Interventions

single or multiple doses of ALG-097558

DRUGPlacebo

single or multiple doses of placebo

DRUGMidazolam

Multiple doses of Midazolam

DRUGItraconazole

Multiple doses of Itraconazole

DRUGCarbamazepine

Multiple doses of Carbamazepine

DRUGALG-097558 in solution formulation

ALG-097558 in solution administered in fasted state

DRUGALG-097558 in tablet formulation

ALG-097558 in tablet administered in fasted and fed state

Sponsors

Aligos Therapeutics
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Masking description

Parts 1 and 2 are double blinded and randomized. Parts 3, 5, and 6 are open label and non-randomized. Part 4 is partially singled blinded non-randomized. Participants are blinded.

Intervention model description

Parts 1 and 2 of the study are parallel assignment, with 2 arms. Parts 3, 5, and 6 are fixed sequence, crossover studies. Part 4 is a partially placebo-controlled, fixed sequence, crossover study.

Eligibility

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

Inclusion criteria

for All Subjects: 1. Male and Female between 18 and 55 years old 2. BMI 18.0 to 32.0 kg/m\^2 3. Female subjects must have a negative serum pregnancy test at screening 4. Subjects must have a 12-lead electrocardiogram (ECG) that meets the protocol criteria

Exclusion criteria

for All Subjects: 1. Subjects with any current or previous illness that, in the opinion of the Investigator, might confound the results of the study or pose an additional risk in administering study drug to the subject or that could prevent, limit, or confound the protocol specified assessments or study results' interpretation 2. Subjects with a past history of cardiac arrhythmias, risk factors for Torsade de Pointes syndrome (e.g., hypokalemia, family history of long QT Syndrome) or history or clinical evidence at screening of significant or unstable cardiac disease etc. 3. Subjects with a history of clinically significant drug allergy 4. Excessive use of alcohol defined as regular consumption of ≥14 units/week 5. Unwilling to abstain from alcohol use for 1 week prior to start of the study through end of study follow up 6. Subjects with Hepatitis A, B, C, E or HIV-1/HIV-2 infection or acute infections such as SARS- CoV-2 infection 7. Subjects with renal dysfunction (e.g., estimated creatinine clearance \<90 mL/min/1.73 m\^2 at screening, calculated by the Chronic Kidney Disease Epidemiology Collaboration \[CKD-EPI\] formula)

Design outcomes

Primary

MeasureTime frameDescription
Half-life [t1/2]Predose (-2 hours) up to 11 daysPharmacokinetic parameters of Midazolam and applicable metabolites
Incidence of Treatment-Emergent Adverse Events [Safety and Tolerability]Up to 11 days for Part 1The number and severity of treatment emergent adverse events as assessed by DAIDS v2.1
Area under the concentration time curve [AUC]Predose (-2 hours) up to 11 daysPharmacokinetic parameters of Midazolam and applicable metabolites
Time to maximum plasma concentration [Tmax]Predose (-2 hours) up to 11 daysPharmacokinetic parameters of Midazolam and applicable metabolites
Maximum plasma concentration [Cmax]Predose (-2 hours) up to 11 daysPharmacokinetic parameters of Midazolam and applicable metabolites
Minimum plasma concentration [Cmin]Predose (-2 hours) up to 11 daysPharmacokinetic parameters of Midazolam and applicable metabolites
C0 [predose]Predose (-2 hours) up to 11 daysPharmacokinetic parameters of Midazolam and applicable metabolites

Secondary

MeasureTime frameDescription
Maximum plasma concentration [Cmax]Predose (-0.75 hours) up to 19 daysPharmacokinetic parameters of ALG-097558 in plasma
Area under the concentration time curve [AUC]Predose (-0.75 hours) up to 19 daysPharmacokinetic parameters of ALG-097558 in plasma
Time to maximum plasma concentration [Tmax]Predose (-0.75 hours) up to 19 daysPharmacokinetic parameters of ALG-097558 in plasma
Minimum plasma concentration [Cmin]Predose (-0.75 hours) up to 19 daysPharmacokinetic parameters of ALG-097558 in plasma
Half-life [t1/2]Predose (-0.75 hours) up to 19 daysPharmacokinetic parameters of ALG-097558 in plasma
C0 [predose]Predose (-0.75 hours) up to 19 daysPharmacokinetic parameters of ALG-097558 in plasma
Dose ProportionalityPredose (-0.75 hours) up to 19 daysPharmacokinetic parameters of ALG-097558 in plasma

Countries

United Kingdom

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026