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A Safety, Pharmacokinetics, and Pharmacodynamics Study of ABX464 in HIV-1 Seronegative and Seropositive Adults

An Open-Label Study of the Safety, Pharmacokinetics, and Pharmacodynamics of ABX464 in HIV-1 Seronegative and Seropositive Adults

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02990325
Enrollment
36
Registered
2016-12-13
Start date
2017-03-27
Completion date
2019-10-21
Last updated
2023-03-31

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

Conditions

Health Volunteers, HIV Infections

Keywords

ABX464, HIV infection

Brief summary

The purpose of the ABX464-005 study is to characterize the systemic and mucosal immunological sequelae associated with exposure to ABX464 and to explore selected immunological endpoints, compartmental pharmacokinetics, and pharmacodynamics.

Detailed description

The purpose of the ABX464-005 study is to characterize the systemic and mucosal immunological sequelae associated with exposure to ABX464 and to explore selected immunological endpoints, compartmental pharmacokinetics, and pharmacodynamics. The site will screen and enroll 12 HIV-infected subjects who will receive 150 mg ABX464 orally once daily for 28 days (Cohort 1). Following completion of this cohort a further 24 subjects will be enrolled: 12 HIV-uninfected subjects will receive 50 mg ABX464 orally once daily for 28 days (Cohort 2) and 12 HIV-infected subjects (Cohort 3) who will 50 mg ABX464 orally once daily for 84 days.

Interventions

DRUGABX464 150mg

ABX464 given orally at 150 mg per day from Day 0 to Day 28 (Cohort 1/ HIV infected subjects)

ABX464 given orally at 50 mg per day from Day 0 to Day 28 (Cohort 2 / non HIV infected subjects)

Sponsors

Abivax S.A.
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
MALE
Age
18 Years to 65 Years
Healthy volunteers
Yes

Inclusion criteria

* Males aged 18-65 years; * Subjects with adequate hematological and biochemical laboratory parameters * Subjects should be able and willing to comply with study visits and procedures as per protocol; * Subjects should understand, sign and date the written voluntary informed consent form at the screening visit prior to any protocol-specific procedures being performed; * Subjects must agree to use in addition to the condom, a second highly effective method (one for the subject and one for the partner) of contraception (defined as per the Clinical Trials Facilitation and Coordination Group (CTFG) Guidance). For HIV positive Subjects * Subjects with a positive HIV-1 serology at any time before the study entry. * Subjects treated for at least 12 months prior to screening with Dolutegravir or Raltegravir combined with either Tenofovir + Emtricitabine (TDF/FTC) or Abacavir + Lamivudine (ABC/3TC); * Subjects with HIV plasma viral load ≤ 50 copies/mL during the 6 months prior to screening with a maximum of 2 blips ≤ 1000 copies during this period; * Subjects' HIV-1 plasma viral load to be ≤ 100,000 copies/mL at any time beyond 6 months after the estimated date of primary infection;

Exclusion criteria

* History of allergic disease, anaphylaxis or reactions likely to be triggered or exacerbated by any component of investigational products; * Acute or chronic infectious disease other than HIV infection (include but not limited to viral hepatitis such as hepatitis B, hepatitis C, active tuberculosis, active syphilis \[i.e. currently treated\]. * Acute, chronic or history of clinically relevant pulmonary, cardiovascular, gastrointestinal, hepatic, pancreatic or renal functional abnormality, encephalopathy, neuropathy or unstable Central Nervous System (CNS) pathology, angina or cardiac arrhythmias, or any other clinically significant medical problems as determined by physical examination and/or laboratory screening tests and/or medical history; * Severe hepatic impairment; * Acute, chronic or history of immunodeficiency or autoimmune disease other than HIV infection;

Design outcomes

Primary

MeasureTime frameDescription
Concentration of ABX464 Metabolite (ABX464-N-Glucuronide) in Rectal Tissue (Measured Only at Pre-infusion Timepoint)Day 1, Day 28, Day 56, Day 84 and Day 112Pharmacokinetic parameters
Maximum Observed Concentration (Cmax) of ABX464 Metabolite (ABX464-N-Glucuronide) in Peripheral Blood Mononuclear Cells (PBMC)Day 1, Day 28 and Day 84Pharmacokinetic parameters
Area Under the Curve (AUC) of ABX464 Metabolite (ABX464-N-Glucuronide) in Peripheral Blood Mononuclear Cells (PBMC)Day 1, Day 28 and Day 84Pharmacokinetic parameters
Concentration of ABX464 in Rectal Tissue (Measured Only at Pre-infusion Timepoint)Day 1, Day 28, Day 56, Day 84 and Day 112Pharmacokinetic parameters
Area Under the Curve (AUC) of ABX464 in SeraDay 1, Day 28 and Day 84Pharmacokinetic parameters
Maximum Observed Concentration (Cmax) of ABX464 in SeraDay 1, Day 28 and day 84Pharmacokinetic parameters
Area Under the Curve (AUC) of ABX464 Metabolite (ABX464-N-Glucuronide) in SeraDay 1, Day 28 and Day 84Pharmacokinetics parameters
Maximum Observed Concentration (Cmax) of ABX464 Metabolite (ABX464-N-Glucuronide) in SeraDay 1, Day 28 and Day 84Pharmacokinetic parameters
Maximum Observed Concentration (Cmax) of ABX464 in Peripheral Blood Mononuclear Cells (PBMC)Day 1, Day 28 and Day 84Pharmacokinetic parameters
Area Under the Curve (AUC) of ABX464 in Peripheral Blood Mononuclear Cells (PBMC)Day 1, Day 28 and Day 84Pharmacokinetic parameters

Secondary

MeasureTime frameDescription
CD4+ Counts (Cell/mm^3)Day 28, Day 35, Day 56, Day 84, Day 91 and Day 112T-cell determinations
Total HIV-1 DNA Reservoir in Peripheral Blood Mononuclear Cells (PBMC)Day 28, Day 56, Day 84 and Day 112HIV reservoir cells (CD4+)
Mean Change From Baseline in Plasma Viral Load (Ultrasensitive Assay)Day 28, Day 56, Day 84 and Day 112Viral Load Assessments (HIV-1 RNA copies/ml)

Countries

Spain

Participant flow

Participants by arm

ArmCount
ABX464 150 mg Capsules for 28 Days
ABX464 150mg: ABX464 given orally at 150 mg per day from Day 0 to Day 28 (Cohort 1/ HIV infected subjects)
11
ABX464 50 mg Capsules for 28 Days
ABX464 50mg: ABX464 given orally at 50 mg per day from Day 0 to Day 28 (Cohort 2 / non HIV infected subjects)
12
ABX464 50 mg Capsules for 84 Days
ABX464 50mg: ABX464 given orally at 50 mg per day from Day 0 to Day 84 (Cohort 3 / HIV infected subjects)
13
Total36

Baseline characteristics

CharacteristicABX464 150 mg Capsules for 28 DaysABX464 50 mg Capsules for 28 DaysABX464 50 mg Capsules for 84 DaysTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
11 Participants12 Participants13 Participants36 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
11 Participants12 Participants13 Participants36 Participants
Region of Enrollment
Spain
11 participants12 participants13 participants36 participants
Sex: Female, Male
Female
0 Participants0 Participants0 Participants0 Participants
Sex: Female, Male
Male
11 Participants12 Participants13 Participants36 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
0 / 110 / 120 / 13
other
Total, other adverse events
9 / 113 / 127 / 13
serious
Total, serious adverse events
0 / 110 / 120 / 13

Outcome results

Primary

Area Under the Curve (AUC) of ABX464 in Peripheral Blood Mononuclear Cells (PBMC)

Pharmacokinetic parameters

Time frame: Day 1, Day 28 and Day 84

Population: Subjects who had received at least 1 dose of the Investigational Medicinal Product and who have at least baseline data.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
ABX464 150mgArea Under the Curve (AUC) of ABX464 in Peripheral Blood Mononuclear Cells (PBMC)Day 28522.4 ng*h/mLGeometric Coefficient of Variation 49.2
ABX464 150mgArea Under the Curve (AUC) of ABX464 in Peripheral Blood Mononuclear Cells (PBMC)Day 11120.7 ng*h/mLGeometric Coefficient of Variation 52.6
ABX464 50mg for 28 DaysArea Under the Curve (AUC) of ABX464 in Peripheral Blood Mononuclear Cells (PBMC)Day 28156.0 ng*h/mLGeometric Coefficient of Variation 51.8
ABX464 50mg for 28 DaysArea Under the Curve (AUC) of ABX464 in Peripheral Blood Mononuclear Cells (PBMC)Day 1594.2 ng*h/mLGeometric Coefficient of Variation 53.2
ABX464 50mg for 84 DaysArea Under the Curve (AUC) of ABX464 in Peripheral Blood Mononuclear Cells (PBMC)Day 1481.5 ng*h/mLGeometric Coefficient of Variation 78.9
ABX464 50mg for 84 DaysArea Under the Curve (AUC) of ABX464 in Peripheral Blood Mononuclear Cells (PBMC)Day 84144.9 ng*h/mLGeometric Coefficient of Variation 48.6
ABX464 50mg for 84 DaysArea Under the Curve (AUC) of ABX464 in Peripheral Blood Mononuclear Cells (PBMC)Day 28151.6 ng*h/mLGeometric Coefficient of Variation 74.3
Primary

Area Under the Curve (AUC) of ABX464 in Sera

Pharmacokinetic parameters

Time frame: Day 1, Day 28 and Day 84

Population: Subjects who had received at least 1 dose of the Investigational Medicinal Product and who have at least baseline data.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
ABX464 150mgArea Under the Curve (AUC) of ABX464 in SeraDay 28119.8 ng*h/mLGeometric Coefficient of Variation 48.7
ABX464 150mgArea Under the Curve (AUC) of ABX464 in SeraDay 1306.0 ng*h/mLGeometric Coefficient of Variation 46.5
ABX464 50mg for 28 DaysArea Under the Curve (AUC) of ABX464 in SeraDay 2817.8 ng*h/mLGeometric Coefficient of Variation 60.9
ABX464 50mg for 28 DaysArea Under the Curve (AUC) of ABX464 in SeraDay 163.7 ng*h/mLGeometric Coefficient of Variation 39.9
ABX464 50mg for 84 DaysArea Under the Curve (AUC) of ABX464 in SeraDay 163.7 ng*h/mLGeometric Coefficient of Variation 77.4
ABX464 50mg for 84 DaysArea Under the Curve (AUC) of ABX464 in SeraDay 8428.9 ng*h/mLGeometric Coefficient of Variation 66.8
ABX464 50mg for 84 DaysArea Under the Curve (AUC) of ABX464 in SeraDay 2830.3 ng*h/mLGeometric Coefficient of Variation 68.2
Primary

Area Under the Curve (AUC) of ABX464 Metabolite (ABX464-N-Glucuronide) in Peripheral Blood Mononuclear Cells (PBMC)

Pharmacokinetic parameters

Time frame: Day 1, Day 28 and Day 84

Population: Subjects who had received at least 1 dose of the Investigational Medicinal Product and who have at least baseline data.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
ABX464 150mgArea Under the Curve (AUC) of ABX464 Metabolite (ABX464-N-Glucuronide) in Peripheral Blood Mononuclear Cells (PBMC)Day 282212.3 ng*h/mLGeometric Coefficient of Variation 58.8
ABX464 150mgArea Under the Curve (AUC) of ABX464 Metabolite (ABX464-N-Glucuronide) in Peripheral Blood Mononuclear Cells (PBMC)Day 12133.7 ng*h/mLGeometric Coefficient of Variation 42.2
ABX464 50mg for 28 DaysArea Under the Curve (AUC) of ABX464 Metabolite (ABX464-N-Glucuronide) in Peripheral Blood Mononuclear Cells (PBMC)Day 2835.0 ng*h/mLGeometric Coefficient of Variation 210.1
ABX464 50mg for 28 DaysArea Under the Curve (AUC) of ABX464 Metabolite (ABX464-N-Glucuronide) in Peripheral Blood Mononuclear Cells (PBMC)Day 139.2 ng*h/mLGeometric Coefficient of Variation 186.7
ABX464 50mg for 84 DaysArea Under the Curve (AUC) of ABX464 Metabolite (ABX464-N-Glucuronide) in Peripheral Blood Mononuclear Cells (PBMC)Day 1835.3 ng*h/mLGeometric Coefficient of Variation 116
ABX464 50mg for 84 DaysArea Under the Curve (AUC) of ABX464 Metabolite (ABX464-N-Glucuronide) in Peripheral Blood Mononuclear Cells (PBMC)Day 84766.5 ng*h/mLGeometric Coefficient of Variation 57.4
ABX464 50mg for 84 DaysArea Under the Curve (AUC) of ABX464 Metabolite (ABX464-N-Glucuronide) in Peripheral Blood Mononuclear Cells (PBMC)Day 28697.5 ng*h/mLGeometric Coefficient of Variation 92
Primary

Area Under the Curve (AUC) of ABX464 Metabolite (ABX464-N-Glucuronide) in Sera

Pharmacokinetics parameters

Time frame: Day 1, Day 28 and Day 84

Population: Subjects who had received at least 1 dose of the Investigational Medicinal Product and who have at least baseline data.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
ABX464 150mgArea Under the Curve (AUC) of ABX464 Metabolite (ABX464-N-Glucuronide) in SeraDay 2848605.0 ng*h/mLGeometric Coefficient of Variation 40.6
ABX464 150mgArea Under the Curve (AUC) of ABX464 Metabolite (ABX464-N-Glucuronide) in SeraDay 150115.8 ng*h/mLGeometric Coefficient of Variation 41.5
ABX464 50mg for 28 DaysArea Under the Curve (AUC) of ABX464 Metabolite (ABX464-N-Glucuronide) in SeraDay 18282.3 ng*h/mLGeometric Coefficient of Variation 37
ABX464 50mg for 28 DaysArea Under the Curve (AUC) of ABX464 Metabolite (ABX464-N-Glucuronide) in SeraDay 284800.6 ng*h/mLGeometric Coefficient of Variation 37
ABX464 50mg for 84 DaysArea Under the Curve (AUC) of ABX464 Metabolite (ABX464-N-Glucuronide) in SeraDay 111209.6 ng*h/mLGeometric Coefficient of Variation 66.5
ABX464 50mg for 84 DaysArea Under the Curve (AUC) of ABX464 Metabolite (ABX464-N-Glucuronide) in SeraDay 2813308.8 ng*h/mLGeometric Coefficient of Variation 62.5
ABX464 50mg for 84 DaysArea Under the Curve (AUC) of ABX464 Metabolite (ABX464-N-Glucuronide) in SeraDay 8414588.2 ng*h/mLGeometric Coefficient of Variation 58.3
Primary

Concentration of ABX464 in Rectal Tissue (Measured Only at Pre-infusion Timepoint)

Pharmacokinetic parameters

Time frame: Day 1, Day 28, Day 56, Day 84 and Day 112

Population: Subjects who had received at least 1 dose of the Investigational Medicinal Product and who have at least baseline data.

ArmMeasureGroupValue (MEAN)Dispersion
ABX464 150mgConcentration of ABX464 in Rectal Tissue (Measured Only at Pre-infusion Timepoint)Day 280.1 ng/mLStandard Deviation 0.11
ABX464 150mgConcentration of ABX464 in Rectal Tissue (Measured Only at Pre-infusion Timepoint)Day 10.0 ng/mLStandard Deviation 0
ABX464 150mgConcentration of ABX464 in Rectal Tissue (Measured Only at Pre-infusion Timepoint)Day 560.0 ng/mLStandard Deviation 0
ABX464 50mg for 28 DaysConcentration of ABX464 in Rectal Tissue (Measured Only at Pre-infusion Timepoint)Day 280.1 ng/mLStandard Deviation 0.19
ABX464 50mg for 28 DaysConcentration of ABX464 in Rectal Tissue (Measured Only at Pre-infusion Timepoint)Day 10.0 ng/mLStandard Deviation 0
ABX464 50mg for 84 DaysConcentration of ABX464 in Rectal Tissue (Measured Only at Pre-infusion Timepoint)Day 280.1 ng/mLStandard Deviation 0.13
ABX464 50mg for 84 DaysConcentration of ABX464 in Rectal Tissue (Measured Only at Pre-infusion Timepoint)Day 10.0 ng/mLStandard Deviation 0
ABX464 50mg for 84 DaysConcentration of ABX464 in Rectal Tissue (Measured Only at Pre-infusion Timepoint)Day 840.1 ng/mLStandard Deviation 0.13
ABX464 50mg for 84 DaysConcentration of ABX464 in Rectal Tissue (Measured Only at Pre-infusion Timepoint)Day 1120.0 ng/mLStandard Deviation 0
Primary

Concentration of ABX464 Metabolite (ABX464-N-Glucuronide) in Rectal Tissue (Measured Only at Pre-infusion Timepoint)

Pharmacokinetic parameters

Time frame: Day 1, Day 28, Day 56, Day 84 and Day 112

Population: Subjects who had received at least 1 dose of the Investigational Medicinal Product and who have at least baseline data.

ArmMeasureGroupValue (MEAN)Dispersion
ABX464 150mgConcentration of ABX464 Metabolite (ABX464-N-Glucuronide) in Rectal Tissue (Measured Only at Pre-infusion Timepoint)Day 280.1 ng/mLStandard Deviation 0.04
ABX464 150mgConcentration of ABX464 Metabolite (ABX464-N-Glucuronide) in Rectal Tissue (Measured Only at Pre-infusion Timepoint)Day 10.0 ng/mLStandard Deviation 0
ABX464 150mgConcentration of ABX464 Metabolite (ABX464-N-Glucuronide) in Rectal Tissue (Measured Only at Pre-infusion Timepoint)Day 560.0 ng/mLStandard Deviation 0
ABX464 50mg for 28 DaysConcentration of ABX464 Metabolite (ABX464-N-Glucuronide) in Rectal Tissue (Measured Only at Pre-infusion Timepoint)Day 280.1 ng/mLStandard Deviation 0.11
ABX464 50mg for 28 DaysConcentration of ABX464 Metabolite (ABX464-N-Glucuronide) in Rectal Tissue (Measured Only at Pre-infusion Timepoint)Day 10.1 ng/mLStandard Deviation 0.08
ABX464 50mg for 84 DaysConcentration of ABX464 Metabolite (ABX464-N-Glucuronide) in Rectal Tissue (Measured Only at Pre-infusion Timepoint)Day 280.1 ng/mLStandard Deviation 0.09
ABX464 50mg for 84 DaysConcentration of ABX464 Metabolite (ABX464-N-Glucuronide) in Rectal Tissue (Measured Only at Pre-infusion Timepoint)Day 10.0 ng/mLStandard Deviation 0
ABX464 50mg for 84 DaysConcentration of ABX464 Metabolite (ABX464-N-Glucuronide) in Rectal Tissue (Measured Only at Pre-infusion Timepoint)Day 840.2 ng/mLStandard Deviation 0.11
ABX464 50mg for 84 DaysConcentration of ABX464 Metabolite (ABX464-N-Glucuronide) in Rectal Tissue (Measured Only at Pre-infusion Timepoint)Day 1120.0 ng/mLStandard Deviation 0
Primary

Maximum Observed Concentration (Cmax) of ABX464 in Peripheral Blood Mononuclear Cells (PBMC)

Pharmacokinetic parameters

Time frame: Day 1, Day 28 and Day 84

Population: Subjects who had received at least 1 dose of the Investigational Medicinal Product and who have at least baseline data.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
ABX464 150mgMaximum Observed Concentration (Cmax) of ABX464 in Peripheral Blood Mononuclear Cells (PBMC)Day 28247.8 ng/mLGeometric Coefficient of Variation 75.7
ABX464 150mgMaximum Observed Concentration (Cmax) of ABX464 in Peripheral Blood Mononuclear Cells (PBMC)Day 1463.3 ng/mLGeometric Coefficient of Variation 55
ABX464 50mg for 28 DaysMaximum Observed Concentration (Cmax) of ABX464 in Peripheral Blood Mononuclear Cells (PBMC)Day 2876.4 ng/mLGeometric Coefficient of Variation 51.7
ABX464 50mg for 28 DaysMaximum Observed Concentration (Cmax) of ABX464 in Peripheral Blood Mononuclear Cells (PBMC)Day 1209.4 ng/mLGeometric Coefficient of Variation 54.4
ABX464 50mg for 84 DaysMaximum Observed Concentration (Cmax) of ABX464 in Peripheral Blood Mononuclear Cells (PBMC)Day 1203.8 ng/mLGeometric Coefficient of Variation 81
ABX464 50mg for 84 DaysMaximum Observed Concentration (Cmax) of ABX464 in Peripheral Blood Mononuclear Cells (PBMC)Day 8473.6 ng/mLGeometric Coefficient of Variation 57.5
ABX464 50mg for 84 DaysMaximum Observed Concentration (Cmax) of ABX464 in Peripheral Blood Mononuclear Cells (PBMC)Day 2872.3 ng/mLGeometric Coefficient of Variation 82.9
Primary

Maximum Observed Concentration (Cmax) of ABX464 in Sera

Pharmacokinetic parameters

Time frame: Day 1, Day 28 and day 84

Population: Subjects who had received at least 1 dose of the Investigational Medicinal Product and who have at least baseline data.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
ABX464 150mgMaximum Observed Concentration (Cmax) of ABX464 in SeraDay 2850.9 ng/mLGeometric Coefficient of Variation 57.1
ABX464 150mgMaximum Observed Concentration (Cmax) of ABX464 in SeraDay 1106.1 ng/mLGeometric Coefficient of Variation 54.5
ABX464 50mg for 28 DaysMaximum Observed Concentration (Cmax) of ABX464 in SeraDay 289.3 ng/mLGeometric Coefficient of Variation 60.3
ABX464 50mg for 28 DaysMaximum Observed Concentration (Cmax) of ABX464 in SeraDay 123.1 ng/mLGeometric Coefficient of Variation 45.2
ABX464 50mg for 84 DaysMaximum Observed Concentration (Cmax) of ABX464 in SeraDay 124.5 ng/mLGeometric Coefficient of Variation 75.5
ABX464 50mg for 84 DaysMaximum Observed Concentration (Cmax) of ABX464 in SeraDay 8415.6 ng/mLGeometric Coefficient of Variation 65.6
ABX464 50mg for 84 DaysMaximum Observed Concentration (Cmax) of ABX464 in SeraDay 2813.0 ng/mLGeometric Coefficient of Variation 76
Primary

Maximum Observed Concentration (Cmax) of ABX464 Metabolite (ABX464-N-Glucuronide) in Peripheral Blood Mononuclear Cells (PBMC)

Pharmacokinetic parameters

Time frame: Day 1, Day 28 and Day 84

Population: Subjects who had received at least 1 dose of the Investigational Medicinal Product and who have at least baseline data.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
ABX464 150mgMaximum Observed Concentration (Cmax) of ABX464 Metabolite (ABX464-N-Glucuronide) in Peripheral Blood Mononuclear Cells (PBMC)Day 28491.5 ng/mLGeometric Coefficient of Variation 73
ABX464 150mgMaximum Observed Concentration (Cmax) of ABX464 Metabolite (ABX464-N-Glucuronide) in Peripheral Blood Mononuclear Cells (PBMC)Day 1585.5 ng/mLGeometric Coefficient of Variation 60.3
ABX464 50mg for 28 DaysMaximum Observed Concentration (Cmax) of ABX464 Metabolite (ABX464-N-Glucuronide) in Peripheral Blood Mononuclear Cells (PBMC)Day 2835.6 ng/mLGeometric Coefficient of Variation 85.7
ABX464 50mg for 28 DaysMaximum Observed Concentration (Cmax) of ABX464 Metabolite (ABX464-N-Glucuronide) in Peripheral Blood Mononuclear Cells (PBMC)Day 139.7 ng/mLGeometric Coefficient of Variation 90.5
ABX464 50mg for 84 DaysMaximum Observed Concentration (Cmax) of ABX464 Metabolite (ABX464-N-Glucuronide) in Peripheral Blood Mononuclear Cells (PBMC)Day 1230.0 ng/mLGeometric Coefficient of Variation 153.9
ABX464 50mg for 84 DaysMaximum Observed Concentration (Cmax) of ABX464 Metabolite (ABX464-N-Glucuronide) in Peripheral Blood Mononuclear Cells (PBMC)Day 84153.3 ng/mLGeometric Coefficient of Variation 49.4
ABX464 50mg for 84 DaysMaximum Observed Concentration (Cmax) of ABX464 Metabolite (ABX464-N-Glucuronide) in Peripheral Blood Mononuclear Cells (PBMC)Day 28125.1 ng/mLGeometric Coefficient of Variation 86.1
Primary

Maximum Observed Concentration (Cmax) of ABX464 Metabolite (ABX464-N-Glucuronide) in Sera

Pharmacokinetic parameters

Time frame: Day 1, Day 28 and Day 84

Population: Subjects who had received at least 1 dose of the Investigational Medicinal Product and who have at least baseline data.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
ABX464 150mgMaximum Observed Concentration (Cmax) of ABX464 Metabolite (ABX464-N-Glucuronide) in SeraDay 287011.1 ng/mLGeometric Coefficient of Variation 37.5
ABX464 150mgMaximum Observed Concentration (Cmax) of ABX464 Metabolite (ABX464-N-Glucuronide) in SeraDay 19918.2 ng/mLGeometric Coefficient of Variation 33.5
ABX464 50mg for 28 DaysMaximum Observed Concentration (Cmax) of ABX464 Metabolite (ABX464-N-Glucuronide) in SeraDay 28695.9 ng/mLGeometric Coefficient of Variation 38.6
ABX464 50mg for 28 DaysMaximum Observed Concentration (Cmax) of ABX464 Metabolite (ABX464-N-Glucuronide) in SeraDay 11626.8 ng/mLGeometric Coefficient of Variation 36.9
ABX464 50mg for 84 DaysMaximum Observed Concentration (Cmax) of ABX464 Metabolite (ABX464-N-Glucuronide) in SeraDay 12036.2 ng/mLGeometric Coefficient of Variation 62.8
ABX464 50mg for 84 DaysMaximum Observed Concentration (Cmax) of ABX464 Metabolite (ABX464-N-Glucuronide) in SeraDay 842150.6 ng/mLGeometric Coefficient of Variation 56.1
ABX464 50mg for 84 DaysMaximum Observed Concentration (Cmax) of ABX464 Metabolite (ABX464-N-Glucuronide) in SeraDay 281705.5 ng/mLGeometric Coefficient of Variation 71.8
Secondary

CD4+ Counts (Cell/mm^3)

T-cell determinations

Time frame: Day 28, Day 35, Day 56, Day 84, Day 91 and Day 112

Population: Subjects who had received at least 1 dose of the Investigational Medicinal Product and who have at least baseline data. CD4+ counts measurements were not assessed for cohort 2 subjects as they were HIV non infected subjets.

ArmMeasureGroupValue (MEAN)
ABX464 150mgCD4+ Counts (Cell/mm^3)Day 35-125.6 cells/mm^3
ABX464 150mgCD4+ Counts (Cell/mm^3)Day 28-130.6 cells/mm^3
ABX464 150mgCD4+ Counts (Cell/mm^3)Day 5629.6 cells/mm^3
ABX464 50mg for 28 DaysCD4+ Counts (Cell/mm^3)Day 112161.8 cells/mm^3
ABX464 50mg for 28 DaysCD4+ Counts (Cell/mm^3)Day 9123.3 cells/mm^3
ABX464 50mg for 28 DaysCD4+ Counts (Cell/mm^3)Day 848.3 cells/mm^3
ABX464 50mg for 28 DaysCD4+ Counts (Cell/mm^3)Day 28-34.6 cells/mm^3
Secondary

Mean Change From Baseline in Plasma Viral Load (Ultrasensitive Assay)

Viral Load Assessments (HIV-1 RNA copies/ml)

Time frame: Day 28, Day 56, Day 84 and Day 112

Population: Subjects who had received at least 1 dose of the Investigational Medicinal Product and who have at least baseline data. HIV viral measurements were not assessed for cohort 2 subjects as they were HIV non infected subjets.

ArmMeasureGroupValue (MEAN)
ABX464 150mgMean Change From Baseline in Plasma Viral Load (Ultrasensitive Assay)Day 28-0.9 copies/mL
ABX464 150mgMean Change From Baseline in Plasma Viral Load (Ultrasensitive Assay)Day 56-0.4 copies/mL
ABX464 50mg for 28 DaysMean Change From Baseline in Plasma Viral Load (Ultrasensitive Assay)Day 28-2.0 copies/mL
ABX464 50mg for 28 DaysMean Change From Baseline in Plasma Viral Load (Ultrasensitive Assay)Day 84-0.9 copies/mL
ABX464 50mg for 28 DaysMean Change From Baseline in Plasma Viral Load (Ultrasensitive Assay)Day 112-1.1 copies/mL
Secondary

Total HIV-1 DNA Reservoir in Peripheral Blood Mononuclear Cells (PBMC)

HIV reservoir cells (CD4+)

Time frame: Day 28, Day 56, Day 84 and Day 112

Population: Subjects who had received at least 1 dose of the Investigational Medicinal Product and who have at least baseline data. Total HIV-1 DNA reservoir measurements were not assessed for cohort 2 subjects as they were HIV non infected subjets.

ArmMeasureGroupValue (MEAN)
ABX464 150mgTotal HIV-1 DNA Reservoir in Peripheral Blood Mononuclear Cells (PBMC)Day 28-86.8 copies/10^6 cells
ABX464 150mgTotal HIV-1 DNA Reservoir in Peripheral Blood Mononuclear Cells (PBMC)Day 56-37.1 copies/10^6 cells
ABX464 50mg for 28 DaysTotal HIV-1 DNA Reservoir in Peripheral Blood Mononuclear Cells (PBMC)Day 11295.6 copies/10^6 cells
ABX464 50mg for 28 DaysTotal HIV-1 DNA Reservoir in Peripheral Blood Mononuclear Cells (PBMC)Day 2822.3 copies/10^6 cells
ABX464 50mg for 28 DaysTotal HIV-1 DNA Reservoir in Peripheral Blood Mononuclear Cells (PBMC)Day 8410.8 copies/10^6 cells

Source: ClinicalTrials.gov · Data processed: Feb 14, 2026