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COVID-19Phase 1NCT05840952

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 Phase 1 study testing ALG-097558, Midazolam and Itraconazole in people with COVID-19, run by Aligos Therapeutics at 1 site in United Kingdom.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial 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 Read more about this study

Who is it for?
Ages 18 to 55 yearsHealthy volunteers can take part
Conditions the study is for
COVID-19
What is being tested?
ALG-097558, Midazolam and Itraconazole
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
90 participants
Where
1 siteUnited Kingdom
Study dates
4 Jul 2023to 29 Apr 2024
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 55 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

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

Who cannot join

  • 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
  • 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.
  • Subjects with a history of clinically significant drug allergy
  • Excessive use of alcohol defined as regular consumption of ≥14 units/week
  • Unwilling to abstain from alcohol use for 1 week prior to start of the study through end of study follow up
  • Subjects with Hepatitis A, B, C, E or HIV-1/HIV-2 infection or acute infections such as SARS- CoV-2 infection
  • 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)

Trial locations and contacts

1 site in 1 country.

United Kingdom1 site
  • Hammersmith Medicines Research

    London

Other trials in United Kingdom

About this study

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

Conditions
COVID-19
Being tested
ALG-097558, Placebo, Midazolam, Itraconazole, Carbamazepine
Keywords
Healthy Volunteer
Medical subject headings
COVID-19

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • ALG-097558Drug

    single or multiple doses of ALG-097558

  • PlaceboDrug

    single or multiple doses of placebo

  • MidazolamDrug

    Multiple doses of Midazolam

  • ItraconazoleDrug

    Multiple doses of Itraconazole

  • CarbamazepineDrug

    Multiple doses of Carbamazepine

  • ALG-097558 in solution formulationDrug

    ALG-097558 in solution administered in fasted state

  • ALG-097558 in tablet formulationDrug

    ALG-097558 in tablet administered in fasted and fed state

Study groups in NCT05840952
Study groupRoleWhat they receive
ALG-097558ExperimentalOral doses of ALG-097558 in Healthy Volunteers, up to 20 doses over 10 days
Receives: Drug: ALG-097558
PlaceboPlacebo comparatorOral doses of placebo in Healthy Volunteers, up to 20 doses over 10 days
Receives: Drug: Placebo
ALG-097558 and MidazolamExperimentalOral doses of ALG-097558, up to 14 doses over 7 days and oral dose of Midazolam, up to 2 doses, over 2 days, in Healthy Volunteers
Receives: Drug: ALG-097558; Drug: Midazolam
ALG-097558, Placebo, and, ItraconazoleExperimentalOral doses of placebo, up to 2 doses over 2 days, followed by ALG-097558, up to 2 doses over 2 days, and itraconazole up to 10 doses over 10 days, in Healthy Volunteers.
Receives: Drug: ALG-097558; Drug: Placebo; Drug: Itraconazole
ALG-097558 and CarbamazepineExperimentalOral doses of ALG-097558, up to 2 doses over 2 days and oral doses of Carbamazepine, up to 30 doses, over 15 days, in Healthy Volunteers
Receives: Drug: ALG-097558; Drug: Carbamazepine
ALG-097558 BioavailabilityExperimentalOral doses of ALG-097558, up to 3 doses over 3 days, both solution and tablet formulations dosed in fasted state, and tablet formulation dosed in fed state, in Healthy Volunteers
Receives: Drug: ALG-097558 in solution formulation; Drug: ALG-097558 in tablet formulation

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Incidence of Treatment-Emergent Adverse Events [Safety and Tolerability]

    The number and severity of treatment emergent adverse events as assessed by DAIDS v2.1

    Measured: Up to 11 days for Part 1

  2. Incidence of Treatment-Emergent Adverse Events [Safety and Tolerability]

    The number and severity of treatment emergent adverse events as assessed by DAIDS v2.1

    Measured: Up to 20 days for Part 2

  3. Incidence of Treatment-Emergent Adverse Events [Safety and Tolerability]

    The number and severity of treatment emergent adverse events as assessed by DAIDS v2.1

    Measured: Up to 20 days for Part 3

  4. Incidence of Treatment-Emergent Adverse Events [Safety and Tolerability]

    The number and severity of treatment emergent adverse events as assessed by DAIDS v2.1

    Measured: Up to 23 days for Part 4

  5. Incidence of Treatment-Emergent Adverse Events [Safety and Tolerability]

    The number and severity of treatment emergent adverse events as assessed by DAIDS v2.1

    Measured: Up to 28 days for Part 5

  6. Incidence of Treatment-Emergent Adverse Events [Safety and Tolerability]

    The number and severity of treatment emergent adverse events as assessed by DAIDS v2.1

    Measured: Up to 17 days for Part 6

  7. Area under the concentration time curve [AUC]

    Pharmacokinetic parameters of Midazolam and applicable metabolites

    Measured: Predose (-2 hours) up to 11 days

  8. Time to maximum plasma concentration [Tmax]

    Pharmacokinetic parameters of Midazolam and applicable metabolites

    Measured: Predose (-2 hours) up to 11 days

  9. Maximum plasma concentration [Cmax]

    Pharmacokinetic parameters of Midazolam and applicable metabolites

    Measured: Predose (-2 hours) up to 11 days

  10. Minimum plasma concentration [Cmin]

    Pharmacokinetic parameters of Midazolam and applicable metabolites

    Measured: Predose (-2 hours) up to 11 days

  11. C0 [predose]

    Pharmacokinetic parameters of Midazolam and applicable metabolites

    Measured: Predose (-2 hours) up to 11 days

  12. Half-life [t1/2]

    Pharmacokinetic parameters of Midazolam and applicable metabolites

    Measured: Predose (-2 hours) up to 11 days

  13. Area under the concentration time curve [AUC]

    Pharmacokinetic parameters of ALG-07558 and metabolite ALG-097730 following administration of itraconazole or carbamazepine

    Measured: Predose (-0.75 hours) up to 19 days

  14. Time to maximum plasma concentration [Tmax]

    Pharmacokinetic parameters of ALG-07558 and metabolite ALG-097730 following administration of itraconazole or carbamazepine

    Measured: Predose (-0.75 hours) up to 19 days

  15. Maximum plasma concentration [Cmax]

    Pharmacokinetic parameters of ALG-07558 and metabolite ALG-097730 following administration of itraconazole or carbamazepine

    Measured: Predose (-0.75 hours) up to 19 days

  16. Minimum plasma concentration [Cmin]

    Pharmacokinetic parameters of ALG-07558 and metabolite ALG-097730 following administration of itraconazole or carbamazepine

    Measured: Predose (-0.75 hours) up to 19 days

  17. C0 [predose]

    Pharmacokinetic parameters of ALG-07558 and metabolite ALG-097730 following administration of itraconazole or carbamazepine

    Measured: Predose (-0.75 hours) up to 19 days

  18. Half-life [t1/2]

    Pharmacokinetic parameters of ALG-07558 and metabolite ALG-097730 following administration of itraconazole or carbamazepine

    Measured: Predose (-0.75 hours) up to 19 days

  19. Area under the concentration time curve [AUC]

    Pharmacokinetic parameters of ALG-07558 and metabolite ALG-097730 following administration of ALG-097558 in either solution or tablet formulations and following a high fat diet

    Measured: Predose (-0.75 hours) up to 9 days

  20. Time to maximum plasma concentration [Tmax]

    Pharmacokinetic parameters of ALG-07558 and metabolite ALG-097730 following administration of ALG-097558 in either solution or tablet formulations and following a high fat diet

    Measured: Predose (-0.75 hours) up to 9 days

  21. Maximum plasma concentration [Cmax]

    Pharmacokinetic parameters of ALG-07558 and metabolite ALG-097730 following administration of ALG-097558 in either solution or tablet formulations and following a high fat diet

    Measured: Predose (-0.75 hours) up to 9 days

  22. Minimum plasma concentration [Cmin]

    Pharmacokinetic parameters of ALG-07558 and metabolite ALG-097730 following administration of ALG-097558 in either solution or tablet formulations and following a high fat diet

    Measured: Predose (-0.75 hours) up to 9 days

  23. C0 [predose]

    Pharmacokinetic parameters of ALG-07558 and metabolite ALG-097730 following administration of ALG-097558 in either solution or tablet formulations and following a high fat diet

    Measured: Predose (-0.75 hours) up to 9 days

  24. Half-life [t1/2]

    Pharmacokinetic parameters of ALG-07558 and metabolite ALG-097730 following administration of ALG-097558 in either solution or tablet formulations and following a high fat diet

    Measured: Predose (-0.75 hours) up to 9 days

Secondary outcomes (7)
  1. Maximum plasma concentration [Cmax]

    Pharmacokinetic parameters of ALG-097558 in plasma

    Measured: Predose (-0.75 hours) up to 19 days

  2. Area under the concentration time curve [AUC]

    Pharmacokinetic parameters of ALG-097558 in plasma

    Measured: Predose (-0.75 hours) up to 19 days

  3. Time to maximum plasma concentration [Tmax]

    Pharmacokinetic parameters of ALG-097558 in plasma

    Measured: Predose (-0.75 hours) up to 19 days

  4. Minimum plasma concentration [Cmin]

    Pharmacokinetic parameters of ALG-097558 in plasma

    Measured: Predose (-0.75 hours) up to 19 days

  5. Half-life [t1/2]

    Pharmacokinetic parameters of ALG-097558 in plasma

    Measured: Predose (-0.75 hours) up to 19 days

  6. C0 [predose]

    Pharmacokinetic parameters of ALG-097558 in plasma

    Measured: Predose (-0.75 hours) up to 19 days

  7. Dose Proportionality

    Pharmacokinetic parameters of ALG-097558 in plasma

    Measured: Predose (-0.75 hours) up to 19 days

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted3 May 2023
  2. Study start4 Jul 2023
  3. Primary completion29 Apr 2024
  4. Study completion29 Apr 2024

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
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.
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
90 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05840952
Sponsor's protocol ID
ALG-097558-701
Status last verified
Sep 2024
First submitted
10 Apr 2023
Last updated
8 Apr 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing ALG-097558, Midazolam and Itraconazole in people with COVID-19, run by Aligos Therapeutics at 1 site in United Kingdom.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 8 Apr 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United Kingdom. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Incidence of Treatment-Emergent Adverse Events [Safety and Tolerability] (time frame: Up to 11 days for Part 1). The study lists 24 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 8 Apr 2025.

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