ClinicalTrials.gg
CompletedNCT06568861Updated Aug 5, 2026Results posted

A Study to Evaluate the Pharmacokinetics, Safety and Tolerability of ALG-097558 in Subjects With Hepatic Impairment and in Healthy Subjects With Normal Hepatic Function

A Phase 1 interventional study of ALG-097558 in COVID-19, sponsored by Aligos Therapeutics. Completed at 2 sites in United States. Open to participants aged 18 Years to 75 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-08-05.

Sponsored by Aligos Therapeutics · Phase 1, Interventional, and Treatment

Phase
Phase 1
Study type
Interventional
Enrollment
16
Allocation
Non-randomized
Ages
18 Years to 75 Years
Sex
All
01

Study summary

This is a Phase 1 non-randomized, open-label, multiple dose, parallel-group study of ALG-097558 in subjects with moderate hepatic impairment and subjects without hepatic impairment, matched for age, body weight and, to the extent possible, for gender. The primary purpose of this study is to characterize the effect of hepatic impairment on the plasma pharmacokinetics of ALG-097558 following administration of multiple, twice daily (Q12H) oral (PO) doses.

02

Conditions studied

  • COVID-19

Browse trials for

03

In context

COVID-19

7,990 studies on the registry are indexed under COVID-19; 466 are open to participants now.

This study's enrollment of 16 is below the median of 102 across 4,364 interventional studies indexed under COVID-19.

Browse COVID-19 studies →

Lead sponsor

Aligos Therapeutics is the lead sponsor of 15 studies on the registry; none are open to participants now.

Of its 7 completed or terminated interventional studies of FDA-regulated products, 2 (29%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Male and Female between 18 and 75 years old
  2. 17.5 to 40.0 kg/m\^2 and a total body weight >50 kg (110 lb) 3 .Female subjects must either be not of or if they are a woman of childbearing potential, they are only eligible if they and any non-sterile, male sexual partners agree to use highly effective therapy

4. Female subjects must have a negative serum pregnancy test at screening

Inclusion Criteria for Subjects with Normal Hepatic Function:

  1. Good general health as defined by no abnormalities identified by Medical History and a vital signs and 12-lead (ECG) assessment
  2. Subjects must fit the demographic-matching criteria including body weight, age, and to the extent possible, gender
  3. Normal hepatic function with no known or suspected hepatic impairment

Inclusion Criteria for Subjects with Impaired Hepatic Function:

  1. Subject satisfies the criteria for Class B of the classification (Child Pugh Scores 7-9 points) within 28 days of study drug administration
  2. A diagnosis of hepatic dysfunction due to hepatocellular disease (and not secondary to any acute ongoing hepatocellular process) documented by medical history, physical examination, liver , hepatic ultrasound, Fibroscan, computerized tomography scan, or magnetic resonance imaging (MRI)
  3. Stable hepatic impairment for at least 3 months prior to screening or second screening visit to demonstrate stability
  4. Stable concomitant medications for the management of an individual subject's medical history for at least 28 days prior to screening
  5. Subjects must have a 12-lead ECG and vital signs assessment that meet the protocol criteria

Exclusion 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 Syndrome) or history or clinical evidence at screening of significant or unstable cardiac disease etc.
  3. Subjects with a history of drug allergy
  4. Subjects with a recent (within 1 year of randomization) history or current evidence of drug abuse or recreational drug use
  5. Excessive use of alcohol defined as regular consumption of ≥14 units/ week for women and ≥21 units/week for men
  6. Unwilling to abstain from alcohol use for 48 hours prior to start of the study through end of study follow up
  7. Subjects with Hepatitis A, B, C, E or -1/HIV-2 infection or acute infections such as SARS- CoV-2 infection. Subejcts with infection may be eligible for moderate impairment cohort provided provided they met stable treatment criteria. Subjects with HIV infection may be eligible for moderate impairment cohort provided they met stable treatment criteria.

Exclusion Criteria for Subjects with Normal Hepatic Function:

  1. Estimated \<60 mL/min/1.73 m2 at screening, calculated by the Chronic Kidney Disease Epidemiology Collaboration () formula] - Unless otherwise instructed by the Study Review Committee (SRC), CKD-EPI should not be corrected for subjects of African ancestry
  2. (total, direct) >1.2× (ULN) (unless Gilbert's is suspected)
  3. (ALT) or aspartate aminotransferase (AST) level > 1.2×ULN
  4. Grade ≥1

Exclusion Criteria for Subjects with Impaired Hepatic Function:

  1. Subjects with advanced ascites (Grade 3)
  2. Subjects with encephalopathy as judged by the investigator.
  3. Subjects with esophageal variceal bleeding within the past 6 months prior to screening.
  4. Subjects with Transjugular Intrahepatic Portosystemic Shunt (TIPS) placement.
  5. Estimated creatinine clearance \<60 mL/min/1.73 m2 at screening, calculated by the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) formula] - Unless otherwise instructed by the SRC, CKD-EPI should not be corrected for subjects of African ancestry
  6. ALT or AST level ≥5×ULN
  7. Serum sodium ≤125 mmol/L
  8. \<50×10\^9/L
  9. Grade ≥2 Hemoglobin
Terms in these criteria, in plain language(18)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

ECG (electrocardiogram)

A recording of the heart’s electrical activity, taken with stickers on the chest, arms and legs. It takes a few minutes and does not hurt.

Child-Pugh class

A score of how well the liver works in people with liver disease such as cirrhosis: class A is mild, B moderate and C severe.

Biopsy and archival tissue

A biopsy takes a small piece of tissue to examine. “Archival tissue” is a sample already taken, for example at diagnosis, and kept by the hospital.

Whether a stored sample will do depends on when it was taken, how much there is and what the study needs. Ask whether the study accepts your stored sample or needs a new biopsy.

QT and QTc

On an ECG, the QT interval is the time the heart’s lower chambers take to activate electrically and recover in each beat. QTc is that time adjusted for heart rate (QTcF by Fridericia’s formula, QTcB by Bazett’s). Some medicines lengthen it, and a long QTc can raise the risk of a dangerous heart rhythm.

The study may name a correction formula and a limit in milliseconds, often around 450–480.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Creatinine clearance (CrCl)

How quickly the kidneys clear creatinine, a waste product, from the blood. A study may estimate it from a blood test with age, weight and sex (often by the Cockcroft–Gault formula), or measure it using blood and urine collected over a set time. Given in mL/min; higher is better.

GFR and eGFR (kidney filtering)

GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².

Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.

Bilirubin

A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.

Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

Hemoglobin (Hb)

The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).

Relapsed and refractory

Relapsed: the illness came back after treatment had worked. Refractory: it did not respond to treatment, or stopped responding while still on it.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
16 participants (actual)

Study arms

  • Experimental
    Subjects with Moderate Hepatic Impairment (Child-Pughs Class B)

    Subjects with moderate hepatic impairment will receive oral doses of 200 mg ALG-097558 twice daily (every 12 hours \[Q12H\]) for 6 days for 11 total doses.

    Drug: ALG-097558

  • Experimental
    Subjects with Normal Hepatic Function

    Demographically matched subjects with normal hepatic function will receive oral doses of 200 mg ALG-097558 twice daily (every 12 hours \[Q12H\]) for 6 days for 11 total doses.

    Drug: ALG-097558

Interventions

  • Multiple doses of ALG-097558 200 mg (2 x 100 mg tablets)

06

What researchers measure

Primary outcomes

  1. Area Under the Concentration Time Curve [AUC]

    Pharmacokinetic parameters of ALG-097558 and metabolite ALG-097730 in plasma

    Time frame: AUC(0-12): Pre-dose (-0.75), 0.25, 0.5, 1, 2, 3, 4, 6, 8, and 12h post last dose on days 1 and 6; AUC(0-last): Predose (-0.75), 0.25, 0.5, 1, 2, 3, 4, 6, 8, and 12h post last dose on day 1 and 6, and additionally 14, 24, 36 and 48h on day 6 only

  2. Time to Maximum Plasma Concentration [Tmax]

    Pharmacokinetic parameters of ALG-097558 and metabolite ALG-097730 in plasma

    Time frame: Pre-dose (-0.75 hours), 0.25, 0.5, 1, 2, 3, 4, 6, 8, and 12 hours post last dose on day 1; Pre-dose (-0.75 hours), 0.25, 0.5, 1, 2, 3, 4, 6, 8, 12, 14, 24, 36, and 48 hours post last dose on day 6

  3. Maximum Plasma Concentration [Cmax]

    Pharmacokinetic parameters of ALG-097558 and metabolite ALG-097730 in plasma

    Time frame: Pre-dose (-0.75 hours), 0.25, 0.5, 1, 2, 3, 4, 6, 8, and 12 hours post last dose on day 1; Pre-dose (-0.75 hours), 0.25, 0.5, 1, 2, 3, 4, 6, 8, 12, 14, 24, 36, and 48 hours post last dose on day 6

  4. Minimum Plasma Concentration [Cmin]

    Pharmacokinetic parameters of ALG-097558 and metabolite ALG-097730 in plasma

    Time frame: Pre-dose (-0.75 hours), 0.25, 0.5, 1, 2, 3, 4, 6, 8, and 12 hours post last dose on day 6 only

  5. C0 [Predose]

    Pharmacokinetic parameters of ALG-097558 and metabolite ALG-097730 in plasma

    Time frame: Pre-dose (-0.75 hours) up to Day 8

  6. Half-life [t1/2]

    Pharmacokinetic parameters of ALG-097558 and metabolite ALG-097730 in plasma

    Time frame: Pre-dose (-0.75 hours), 0.25, 0.5, 1, 2, 3, 4, 6, 8, 12, 14, 24, 36, and 48 hours post last dose on day 6 only

Secondary outcomes

  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

    Time frame: Up to 20 Days

07

Results

Posted Aug 5, 2026

Participant flow

Participants were recruited at 2 investigational sites. The first participant enrolled was on 13-Jan-2025 and the last participant was enrolled on 24-Jun-2025.

Participant flow — Overall Study
MilestoneSubjects With Moderate Hepatic Impairment (Child-Pughs Class B)Subjects With Normal Hepatic Function
Started88
Completed87
Not completed01
Withdrew: Adverse event01

Outcome measures

PrimaryArea Under the Concentration Time Curve [AUC]

Pharmacokinetic parameters of ALG-097558 and metabolite ALG-097730 in plasma

Time frame:
AUC(0-12): Pre-dose (-0.75), 0.25, 0.5, 1, 2, 3, 4, 6, 8, and 12h post last dose on days 1 and 6; AUC(0-last): Predose (-0.75), 0.25, 0.5, 1, 2, 3, 4, 6, 8, and 12h post last dose on day 1 and 6, and additionally 14, 24, 36 and 48h on day 6 only
Reported as:
Geometric mean · ng.h/mL
Area Under the Concentration Time Curve [AUC]
ng.h/mLSubjects With Moderate Hepatic Impairment (Child-Pughs Class B)Subjects With Normal Hepatic Function
Total ALG-097558 - AUC(0-12) Day 112700 ± 35.17620 ± 144
Total ALG-097558 - AUC(0-12) Day 611600 ± 20.810600 ± 31.4
Unbound ALG-097558 - AUC(0-12) Day 11240 ± 28.2628 ± 48.8
Unbound ALG-097558 - AUC(0-12) Day 61130 ± 39.9648 ± 30.4
Total ALG-097730 - AUC(0-12) Day 12700 ± 29.81620 ± 158
Total ALG-097730 - AUC(0-12) Day 62640 ± 21.72460 ± 21.1
Unbound ALG-097730 - AUC(0-12) Day 11000 ± 22.0620 ± 32.7
Unbound ALG-097730 - AUC(0-12) Day 6963 ± 27.4634 ± 20.8
Total ALG-097558 - AUC(0-last) Day 612800 ± 23.511400 ± 33.4
Unbound ALG-097558 - AUC(0-last) Day 61120 ± 41.3593 ± 35.5
Total ALG-097730 - AUC(0-last) Day 63300 ± 25.82890 ± 23.2
Unbound ALG-097730 - AUC(0-last) Day 6991 ± 29.0619 ± 23.8
PrimaryTime to Maximum Plasma Concentration [Tmax]

Pharmacokinetic parameters of ALG-097558 and metabolite ALG-097730 in plasma

Time frame:
Pre-dose (-0.75 hours), 0.25, 0.5, 1, 2, 3, 4, 6, 8, and 12 hours post last dose on day 1; Pre-dose (-0.75 hours), 0.25, 0.5, 1, 2, 3, 4, 6, 8, 12, 14, 24, 36, and 48 hours post last dose on day 6
Reported as:
Median · hours
Time to Maximum Plasma Concentration [Tmax]
hoursSubjects With Moderate Hepatic Impairment (Child-Pughs Class B)Subjects With Normal Hepatic Function
Total ALG-097558 - Tmax Day 12.00 (0.5 to 3.0)2.00 (1.0 to 3.0)
Total ALG-097558 - Tmax Day 62.00 (0.5 to 3.0)2.00 (0.5 to 4.0)
Total ALG-097730 - Tmax Day 12.5 (1.0 to 3.0)2.00 (2.0 to 4.0)
Total ALG-097730 - Tmax Day 62.50 (1.0 to 4.0)3.00 (1.0 to 4.0)
PrimaryMaximum Plasma Concentration [Cmax]

Pharmacokinetic parameters of ALG-097558 and metabolite ALG-097730 in plasma

Time frame:
Pre-dose (-0.75 hours), 0.25, 0.5, 1, 2, 3, 4, 6, 8, and 12 hours post last dose on day 1; Pre-dose (-0.75 hours), 0.25, 0.5, 1, 2, 3, 4, 6, 8, 12, 14, 24, 36, and 48 hours post last dose on day 6
Reported as:
Geometric mean · ng/mL
Maximum Plasma Concentration [Cmax]
ng/mLSubjects With Moderate Hepatic Impairment (Child-Pughs Class B)Subjects With Normal Hepatic Function
Total ALG-097558 - Cmax Day 13000 ± 39.41800 ± 135.0
Total ALG-097558 - Cmax Day 62570 ± 35.52450 ± 40.2
Unbound ALG-097558 - Cmax Day 1343 ± 19.2161 ± 39.0
Unbound ALG-097558 - Cmax Day 6291 ± 47.1154 ± 32.9
Total ALG-097730 - Cmax Day 1471 ± 33.3299 ± 159
Total ALG-097730 - Cmax Day 6441 ± 28.4448 ± 33.8
Unbound ALG-097730 - Cmax Day 1194 ± 22.1128 ± 23.8
Unbound ALG-097730 - Cmax Day 6179 ± 25.1128 ± 27.0
PrimaryMinimum Plasma Concentration [Cmin]

Pharmacokinetic parameters of ALG-097558 and metabolite ALG-097730 in plasma

Time frame:
Pre-dose (-0.75 hours), 0.25, 0.5, 1, 2, 3, 4, 6, 8, and 12 hours post last dose on day 6 only
Reported as:
Geometric mean · ng/mL
Minimum Plasma Concentration [Cmin]
ng/mLSubjects With Moderate Hepatic Impairment (Child-Pughs Class B)Subjects With Normal Hepatic Function
Total ALG-097558 - Cmin Day 6126 ± 56.499.0 ± 66.9
Total ALG-097730 - Cmin Day 655.9 ± 45.341.8 ± 46.2
PrimaryC0 [Predose]

Pharmacokinetic parameters of ALG-097558 and metabolite ALG-097730 in plasma

Time frame:
Pre-dose (-0.75 hours) up to Day 8
Reported as:
Geometric mean · ng/mL
C0 [Predose]
ng/mLSubjects With Moderate Hepatic Impairment (Child-Pughs Class B)Subjects With Normal Hepatic Function
Total ALG-097558 - Ctrough Day 2320 ± 55.4NA
Total ALG-097558 - Ctrough Day 3268 ± 50.8230 ± 63.2
Total ALG-097558 - Ctrough Day 4234 ± 69.4174 ± 36.1
Total ALG-097558 - Ctrough Day 5230 ± 89.3170 ± 46.8
Total ALG-097558 - Ctrough Day 6290 ± 65.1171 ± 40.3
Unbound ALG-097558 - Ctrough Day 224.1 ± 67.711.8 ± 47.1
Unbound ALG-097558 - Ctrough Day 322.5 ± 62.711.4 ± 33.2
Unbound ALG-097558 - Ctrough Day 423.3 ± 66.211.8 ± 23.7
Unbound ALG-097558 - Ctrough Day 524.3 ± 71.59.84 ± 4.00
Unbound ALG-097558 - Ctrough Day 633.9 ± 56.413.0 ± 29.7
Total ALG-097730 - Ctrough Day 2103 ± 24.8NA
Total ALG-097730 - Ctrough Day 397.1 ± 35.881.7 ± 39.5
Total ALG-097730 - Ctrough Day 493.6 ± 48.372.2 ± 30.8
Total ALG-097730 - Ctrough Day 586.4 ± 48.369.5 ± 34.6
Total ALG-097730 - Ctrough Day 697.2 ± 45.369.9 ± 33.3
Unbound ALG-097730 - Ctrough Day 232.0 ± 28.116.7 ± 43.2
Unbound ALG-097730 - Ctrough Day 331.7 ± 40.514.3 ± 41.1
Unbound ALG-097730 - Ctrough Day 433.8 ± 43.618.1 ± 23.6
Unbound ALG-097730 - Ctrough Day 530.5 ± 54.415.5 ± 27.7
Unbound ALG-097730 - Ctrough Day 636.2 ± 45.719.5 ± 31.5
PrimaryHalf-life [t1/2]

Pharmacokinetic parameters of ALG-097558 and metabolite ALG-097730 in plasma

Time frame:
Pre-dose (-0.75 hours), 0.25, 0.5, 1, 2, 3, 4, 6, 8, 12, 14, 24, 36, and 48 hours post last dose on day 6 only
Reported as:
Geometric mean · hours
Half-life [t1/2]
hoursSubjects With Moderate Hepatic Impairment (Child-Pughs Class B)Subjects With Normal Hepatic Function
Total ALG-097558 - t1/2 Day 65.74 ± 71.66.75 ± 36.8
Total ALG-097730 - t1/2 Day 67.50 ± 82.99.44 ± 49.1
SecondaryIncidence of Treatment-Emergent Adverse Events [Safety and Tolerability]

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

Time frame:
Up to 20 Days
Reported as:
Number · participants
Incidence of Treatment-Emergent Adverse Events [Safety and Tolerability]
participantsSubjects With Moderate Hepatic Impairment (Child-Pughs Class B)Subjects With Normal Hepatic Function
Any TEAE — Safety Set - Any TEAE21
Any treatment-related TEAE — Safety Set - Any TEAE01
Any Grade ≥3 TEAE — Safety Set - Any TEAE10
Any treatment-related TEAE by severity — Safety Set - Any TEAE01
Any treatment-related TEAE by severity Grade 2 — Safety Set - Any TEAE01
Any treatment-related Grade ≥3 TEAE — Safety Set - Any TEAE00
Any TEAE Leading to Early Discontinuation — Safety Set - Any TEAE01

Adverse events

Collected over Up to 20 days. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Subjects With Moderate Hepatic Impairment (Child-Pughs Class B)0/8 (0%)1/8 (12.5%)1/8 (12.5%)
Subjects With Normal Hepatic Function0/8 (0%)0/8 (0%)1/8 (12.5%)
Most frequent serious events
Most frequent serious events
EventSubjects With Moderate Hepatic Impairment (Child-Pughs Class B)Subjects With Normal Hepatic Function
Alcohol Withdrawal SyndromePsychiatric disorders1/80/8
Hepatitis alcoholicHepatobiliary disorders1/80/8
Most frequent other events
Most frequent other events
EventSubjects With Moderate Hepatic Impairment (Child-Pughs Class B)Subjects With Normal Hepatic Function
Abdominal pain upperGastrointestinal disorders0/81/8
DuodenitisGastrointestinal disorders1/80/8
Mallory-Weiss syndromeGastrointestinal disorders1/80/8
ThrombocytopeniaBlood and lymphatic system disorders1/80/8
Ligament PainInjury, poisoning and procedural complications1/80/8

Baseline characteristics

Age, Continuous
Age, Continuous(years)Subjects With Moderate Hepatic Impairment (Child-Pughs Class B)Subjects With Normal Hepatic FunctionTotal
Mean59.4 ± 9.0462.8 ± 3.2061.1 ± 6.78
Sex: Female, Male
Sex: Female, Male(Participants)Subjects With Moderate Hepatic Impairment (Child-Pughs Class B)Subjects With Normal Hepatic FunctionTotal
Female5510
Male336
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Subjects With Moderate Hepatic Impairment (Child-Pughs Class B)Subjects With Normal Hepatic FunctionTotal
American Indian or Alaska Native000
Asian000
Native Hawaiian or Other Pacific Islander000
Black or African American000
White8816
More than one race000
Unknown or Not Reported000
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)Subjects With Moderate Hepatic Impairment (Child-Pughs Class B)Subjects With Normal Hepatic FunctionTotal
Hispanic or Latino5510
Not Hispanic or Latino336
Unknown or Not Reported000
Region of Enrollment
Region of Enrollment(Participants)Subjects With Moderate Hepatic Impairment (Child-Pughs Class B)Subjects With Normal Hepatic FunctionTotal
United States8816
Height
Height(centimetres)Subjects With Moderate Hepatic Impairment (Child-Pughs Class B)Subjects With Normal Hepatic FunctionTotal
Mean160.84 ± 9.548164.70 ± 10.081162.77 ± 9.693
Weight
Weight(kg)Subjects With Moderate Hepatic Impairment (Child-Pughs Class B)Subjects With Normal Hepatic FunctionTotal
Mean72.25 ± 11.65170.75 ± 7.50671.50 ± 9.499
Body Mass Index
Body Mass Index(kg/m^2)Subjects With Moderate Hepatic Impairment (Child-Pughs Class B)Subjects With Normal Hepatic FunctionTotal
Mean27.79 ± 2.20026.24 ± 3.34827.01 ± 2.851

2 further baseline measures are reported on the registry.

08

Study locations

2 sites
  • University of Miami
    Miami, Florida 33136, United States
  • Orlando Clinical Research Center
    Orlando, Florida 32809, United States
09

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Jan 2025 to primary completion in Jul 2025, 6 months.

Results were first posted in Aug 2026, 1 year after primary completion.

Of 233 industry-sponsored phase 1 interventional studies under COVID-19, half reached primary completion within 6 months of starting (the median), counting those still running; a quarter within 2 and three quarters within 12. This study's 6 months is close to that.

Counting every sponsor, half of 384 studies reached it within 7 months; a quarter within 3 and three quarters within 15.

How these figures are worked out, and which studies are left out of them.

Registered
Aug 20, 2024
First posted
Aug 23, 2024
StartActual
Jan 13, 2025
Primary completionActual
Jul 16, 2025
CompletionActual
Jul 28, 2025
Results first posted
Aug 5, 2026
Last update
Aug 5, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Aug 5, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT06568861
Lead sponsor
Aligos Therapeutics
Responsible party
Sponsor
First posted
Aug 23, 2024
Start date
Jan 13, 2025
Primary completion
Jul 16, 2025
Completion
Jul 28, 2025
Results posted
Aug 5, 2026
Last update
Aug 5, 2026

Oversight

FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

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Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Studies of the drug tested here: ALG-097558

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