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A Multicenter Study to Determine the Depth and Duration of Hepatitis B Surface Antigen (HBsAg) Reduction After Single or Multiple Doses of ARC-520, in Combination With Entecavir in Patients With Chronic Hepatitis B Virus (HBV) Infection

A Multicenter, Randomized, Double-blind, Placebo-controlled, Dose-escalation Study to Determine the Depth and Duration of Hepatitis B Surface Antigen (HBsAg) Reduction After a Single Intravenous Dose of ARC-520 in Combination With Entecavir in Patients With Chronic Hepatitis B Virus (HBV) Infection, Followed by a Two-dose Open-label Cohort and Three Open-label Single-dose Cohorts in Treatment Naïve Patients, Including a Multi-dose Open-label Extension at a Single Center

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02065336
Enrollment
58
Registered
2014-02-19
Start date
2014-03-31
Completion date
2017-01-31
Last updated
2026-01-13

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

Conditions

Hepatitis B, Chronic

Keywords

HBV, Hepatitis

Brief summary

The purpose of this study is to determine whether ARC-520 in combination with entecavir is effective in the treatment of patients with chronic HBV Infection.

Detailed description

Treatment with ARC-520 for injection is expected to reduce all HBV proteins and replicative intermediates via ribonucleic acid (RNA) interference. The magnitude of the reduction and duration of effect will depend on the dose. Since to date ARC-520 has not been administered to patients with chronic HBV infection, the effective therapeutic dose in patients with chronic HBV infection is unknown. This study is designed to assess the antiviral activity of ARC-520, especially its effect on HBsAg, in patients with chronic HBV infection at different dose levels. This is a multicenter, randomized, double-blind, placebo-controlled, single-dose escalation study of ARC 520 in combination with entecavir administered to participants with hepatitis B virus e antigen (HBeAg)-negative (Cohorts 1 through 4) or HBeAg-positive (Cohort 5) immune active, chronic HBV infection, followed by a two-dose open-label cohort (Cohort 6), three open-label single-dose cohorts in treatment-naïve participants (Cohorts 7, 11 and 12) and an open-label multi-dose extension study (Cohorts 8, 9, 10). Cohort 6 will investigate ARC-520 in combination with entecavir administered in two doses to participants with HBeAg-positive immune-active chronic HBV infection. Cohorts 7, 11 and 12 will enroll treatment-naïve participants. Cohort 8 will only enroll participants previously completing Cohorts 1-4. Cohort 9 will only enroll participants previously completing Cohort 5 or 6. Cohort 10 will only enroll participants previously completing Cohort 7. Participants will undergo the following evaluations at regular intervals during the study: medical history, physical examinations, vital sign measurements (blood pressure, heart rate, respiratory rate, and temperature), weight, adverse events (AEs), 12-lead electrocardiograms (ECGs), concomitant medication, blood sample collection for hematology, coagulation, chemistry, pharmacokinetic (PK) and exploratory pharmacodynamic (PD) measures, urinalysis, HBV serology, HBV genotyping and sequencing, follicle stimulating hormone (FSH) testing and pregnancy testing for females of childbearing potential. Clinically significant changes including AEs will be followed until resolution, until the condition stabilizes, until the event is otherwise explained, or until the participant is lost to follow-up.

Interventions

DRUGPlacebo
DRUGentecavir

In all cohorts, each participant received an 8 mg dose of oral chlorpheniramine 2 hours prior to each administration of ARC-520 Injection.

Sponsors

ICON Clinical Research
CollaboratorINDUSTRY
Arrowhead Pharmaceuticals
Lead SponsorINDUSTRY

Study design

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

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

Key Inclusion Criteria: * Diagnosis of HBeAg negative and immune active chronic HBV infection (Cohorts 1-4, 8) * Diagnosis of HBeAg positive and immune active chronic HBV infection (Cohorts 5-6, 9) * Diagnosis of HBeAg negative or HBeAg positive and immune active or tolerant chronic HBV infection (Cohorts 7, 10, 11 & 12) * Patients with \> 6 months of continuous, 0.5 mg/day oral entecavir, and a willingness to continue taking entecavir throughout the study (Cohorts 1-6, 8-9). * Patients naive to entecavir (never on entecavir or on entecavir \<30 days prior to screening) and a willingness to take entecavir and willingness to continue taking entecavir throughout the study (Cohorts 7, 11 & 12). Key

Exclusion criteria

* Female patients that have a positive pregnancy test or are lactating. * Acute signs of hepatitis/other infection (eg, moderate fever, jaundice, nausea, vomiting, and abdominal pain) evident within 4 weeks of screening and/or at the screening examination. * Patients with antiviral therapy other than entecavir within 3 months of screening or prior treatment with interferon or a toll receptor agonist in the last 5 years. * Use within the last 6 months or an anticipated requirement for anticoagulants, corticosteroids, immunomodulators, or immunosuppressants. * Has any history of autoimmune disease especially autoimmune hepatitis. * Has human immunodeficiency virus (HIV) infection, as shown by the presence of anti-HIV antibody (sero-positive). * Is sero-positive for hepatitis C virus (HCV), and/or a history of delta virus hepatitis. * Has a history of allergy to bee venom or history of hypersensitivity reaction requiring an emergency visit to a physician or hospital and/or requirement for treatment with steroids and/or epinephrine.

Design outcomes

Primary

MeasureTime frame
Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Baseline, through Day 85 (Cohorts 1-7) and through 24 weeks post-last dose (last dose: Day 85 Cohort 9; Day 253 Cohort 10)

Secondary

MeasureTime frameDescription
Number of Participants With Negative Bee Venom Allergy Test Results at Baseline, Day 29, and Day 85Baseline, Day 29, Day 85Bee venom allergy tests were used to assess immunoglobulin E (IgE) in Cohorts 1-7. Analysis values less than 0.35 kU/L were taken as negative.
Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Baseline, Days 1, 2, 3, 8, 15, 22, 29
Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Area Under the Plasma Concentration-Time Curve From Time 0 to 24 Hours (AUC0-24), Cohorts 1-5Day 1 predose, immediately prior to the end of infusion, 0.5, 1, 3, 6, 24, and 48 hours postdose
Pharmacokinetics of ARC-520 of ARC-520 Product Constituents AD0009 and AD0010: Area Under the Plasma Concentration-Time Curve From Time 0 to the Last Quantifiable Plasma Concentration (AUClast), Cohorts 1-5Day 1 predose, immediately prior to the end of infusion, 0.5, 1, 3, 6, 24, and 48 hours postdose
Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Area Under the Plasma Concentration-Time Curve From Time 0 Extrapolated to Infinity (AUCinf), Cohorts 1-5 OnlyDay 1 predose, immediately prior to the end of infusion, 0.5, 1, 3, 6, 24, and 48 hours postdose
Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)through Day 85 (Cohorts 1-7) and through 24 weeks post-last dose (last dose: Day 85 Cohort 9; Day 225 Cohort 10)An adverse event (AE) is any untoward medical occurrence which does not necessarily have a causal relationship with this treatment. An SAE is any AE that: results in death; is life-threatening; requires inpatient hospitalization or prolongation of an existing hospitalization; results in persistent or significant disability/incapacity; is a congenital anomaly/birth defect; or is a medically important event or reaction.Events were categorized as mild, moderate or severe. TEAEs were defined as all AEs starting or worsening after commencement of treatment with investigational product. A treatment-related TEAE was one whose relationship to treatment was noted as unlikely, possibly, or probably related.
Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Clearance (CL), Cohorts 1-5Day 1 predose, immediately prior to the end of infusion, 0.5, 1, 3, 6, 24, and 48 hours postdose
Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Apparent Volume of Distribution During the Terminal Phase (Vz), Cohorts 1-5Day 1 predose, immediately prior to the end of infusion, 0.5, 1, 3, 6, 24, and 48 hours postdose
Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Volume in Steady State (Vss), Cohorts 1-5Day 1 predose, immediately prior to the end of infusion, 0.5, 1, 3, 6, 24, and 48 hours postdose
Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Terminal Elimination Rate Constant (Kel), Cohorts 1-5Day 1 predose, immediately prior to the end of infusion, 0.5, 1, 3, 6, 24, and 48 hours postdose
Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Terminal Elimination Half-Life (t1/2), Cohorts 1-5Day 1 predose, immediately prior to the end of infusion, 0.5, 1, 3, 6, 24, and 48 hours postdose
Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Maximum Observed Plasma Concentration (Cmax), Cohorts 1-5Day 1 predose, immediately prior to the end of infusion, 0.5, 1, 3, 6, 24, and 48 hours postdose

Countries

Hong Kong

Participant flow

Pre-assignment details

No patients were enrolled in Cohorts 8, 11, or 12. Cohort 9 (n=2) and Cohort 10 (n=8) enrolled participants who previously completed treatment in other cohorts.

Participants by arm

ArmCount
ARC-520 Cohort 1
a single IV dose of double-blind ARC-520 Injection 1.0 mg/kg in combination with entecavir administered to participants with HBeAg-negative immune active chronic HBV infection
6
ARC-520 Cohort 2
a single IV dose of double-blind ARC-520 Injection 2.0 mg/kg in combination with entecavir administered to participants with HBeAg-negative immune active chronic HBV infection
6
ARC-520 Cohort 3
a single IV dose of double-blind ARC-520 Injection 3.0 mg/kg in combination with entecavir administered to participants with HBeAg-negative immune active chronic HBV infection
6
ARC-520 Cohort 4
a single IV dose of double-blind ARC-520 Injection 4.0 mg/kg in combination with entecavir administered to participants with HBeAg-negative immune active chronic HBV infection
6
ARC-520 Cohort 5
a single IV dose of double-blind ARC-520 Injection 4.0 mg/kg in combination with entecavir administered to participants with HBeAg-positive immune active chronic HBV infection
6
ARC-520 Cohort 6
two IV doses of open-label ARC-520 2.0 mg/kg administered to participants with HBeAg-positive immune active chronic HBV
6
ARC-520 Cohort 7
a single IV dose of open-label ARC-520 4.0 mg/kg administered to treatment-naïve, HBeAg-negative or -positive participants with chronic hepatitis B (CHB)
12
Placebo Normal Saline Cohorts 1-5
a single IV dose of double-blind normal saline in combination with entecavir administered to participants with HBeAg-negative or -positive immune active chronic HBV infection
10
Total58

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005FG006FG007FG008FG009
Extension PhaseStudy Terminated by Sponsor0000000028

Baseline characteristics

CharacteristicARC-520 Cohort 1ARC-520 Cohort 2ARC-520 Cohort 3ARC-520 Cohort 4ARC-520 Cohort 5ARC-520 Cohort 6ARC-520 Cohort 7Placebo Normal Saline Cohorts 1-5Total
Age, Continuous49.0 years
STANDARD_DEVIATION 8.22
43.0 years
STANDARD_DEVIATION 4.15
42.0 years
STANDARD_DEVIATION 1.79
39.8 years
STANDARD_DEVIATION 2.04
39.5 years
STANDARD_DEVIATION 7.23
33.3 years
STANDARD_DEVIATION 4.23
39.8 years
STANDARD_DEVIATION 10.12
44.4 years
STANDARD_DEVIATION 9.09
41.4 years
STANDARD_DEVIATION 7.94
Sex: Female, Male
Female
2 Participants2 Participants3 Participants1 Participants2 Participants3 Participants5 Participants2 Participants20 Participants
Sex: Female, Male
Male
4 Participants4 Participants3 Participants5 Participants4 Participants3 Participants7 Participants8 Participants38 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
EG006
affected / at risk
EG007
affected / at risk
EG008
affected / at risk
EG009
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —— / —— / —— / —— / —— / —— / —— / —
other
Total, other adverse events
1 / 64 / 61 / 60 / 61 / 61 / 61 / 121 / 27 / 80 / 10
serious
Total, serious adverse events
0 / 60 / 60 / 60 / 60 / 60 / 60 / 120 / 20 / 80 / 10

Outcome results

Primary

Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)

Time frame: Baseline, through Day 85 (Cohorts 1-7) and through 24 weeks post-last dose (last dose: Day 85 Cohort 9; Day 253 Cohort 10)

Population: Pharmacodynamic (PD) Population: all participants who received at least 1 dose of study drug and had evaluable data from at least one postdose PD assessment according to the treatment the participants were assigned.

ArmMeasureGroupValue (MEAN)Dispersion
ARC-520 Cohort 1Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 43-1020.1 IU/mLStandard Deviation 1252.98
ARC-520 Cohort 1Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 15-1055.1 IU/mLStandard Deviation 1900.89
ARC-520 Cohort 1Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 85-670.1 IU/mLStandard Deviation 1825.99
ARC-520 Cohort 1Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 22-1225.4 IU/mLStandard Deviation 1967.15
ARC-520 Cohort 1Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 29-579.1 IU/mLStandard Deviation 352.71
ARC-520 Cohort 1Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 8-928.1 IU/mLStandard Deviation 1285.26
ARC-520 Cohort 1Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 3-554.8 IU/mLStandard Deviation 861.86
ARC-520 Cohort 2Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 15-2260.8 IU/mLStandard Deviation 4022.82
ARC-520 Cohort 2Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 3-1194.0 IU/mLStandard Deviation 2083.72
ARC-520 Cohort 2Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 29-1826.3 IU/mLStandard Deviation 2618.78
ARC-520 Cohort 2Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 43-1288.8 IU/mLStandard Deviation 1498.6
ARC-520 Cohort 2Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 8-2179.2 IU/mLStandard Deviation 3170.68
ARC-520 Cohort 2Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 85-542.8 IU/mLStandard Deviation 1815.34
ARC-520 Cohort 2Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 57-1056.7 IU/mLStandard Deviation 773.69
ARC-520 Cohort 2Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 22-2266.2 IU/mLStandard Deviation 3868.9
ARC-520 Cohort 3Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 85-2119.3 IU/mLStandard Deviation 1717.17
ARC-520 Cohort 3Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 2993.3 IU/mLStandard Deviation 2425.68
ARC-520 Cohort 3Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 57-2330.1 IU/mLStandard Deviation 1676.5
ARC-520 Cohort 3Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 3-1003.6 IU/mLStandard Deviation 949.36
ARC-520 Cohort 3Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 8-884.3 IU/mLStandard Deviation 1296.49
ARC-520 Cohort 3Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 43-1471.8 IU/mLStandard Deviation 1625.3
ARC-520 Cohort 3Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 15-470.8 IU/mLStandard Deviation 2025.31
ARC-520 Cohort 3Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 22-204.3 IU/mLStandard Deviation 2077.12
ARC-520 Cohort 4Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 85-926.3 IU/mLStandard Deviation 1406.29
ARC-520 Cohort 4Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 22-2978.8 IU/mLStandard Deviation 3536.73
ARC-520 Cohort 4Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 15-3069.0 IU/mLStandard Deviation 3923.45
ARC-520 Cohort 4Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 3-1501.0 IU/mLStandard Deviation 1930.12
ARC-520 Cohort 4Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 57-2813.0 IU/mLStandard Deviation 2665.97
ARC-520 Cohort 4Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 43-3219.8 IU/mLStandard Deviation 3601.7
ARC-520 Cohort 4Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 29-2972.8 IU/mLStandard Deviation 3506.01
ARC-520 Cohort 4Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 8-2591.2 IU/mLStandard Deviation 3304.72
ARC-520 Cohort 5Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 57-1536.0 IU/mLStandard Deviation 1373.46
ARC-520 Cohort 5Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 29-1964.3 IU/mLStandard Deviation 2501.62
ARC-520 Cohort 5Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 43-1939.7 IU/mLStandard Deviation 2277.79
ARC-520 Cohort 5Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 85-537.5 IU/mLStandard Deviation 1901.16
ARC-520 Cohort 5Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 3-1664.7 IU/mLStandard Deviation 2375.62
ARC-520 Cohort 5Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 22-1951.7 IU/mLStandard Deviation 2819.85
ARC-520 Cohort 5Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 8-1789.8 IU/mLStandard Deviation 2101.23
ARC-520 Cohort 5Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 15-1672.8 IU/mLStandard Deviation 1892.73
ARC-520 Cohort 6Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 85-791.0 IU/mLStandard Deviation 457.04
ARC-520 Cohort 6Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 3-948.0 IU/mLStandard Deviation 1016.31
ARC-520 Cohort 6Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 8-1344.0 IU/mLStandard Deviation 1319.66
ARC-520 Cohort 6Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 22-1553.7 IU/mLStandard Deviation 1596.05
ARC-520 Cohort 6Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 29-1532.3 IU/mLStandard Deviation 1500.4
ARC-520 Cohort 6Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 43-1566.8 IU/mLStandard Deviation 1290.46
ARC-520 Cohort 6Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 57-1370.7 IU/mLStandard Deviation 872.64
ARC-520 Cohort 7Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 85-20827.2 IU/mLStandard Deviation 31753.76
ARC-520 Cohort 7Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 57-22658.4 IU/mLStandard Deviation 34292.84
ARC-520 Cohort 7Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 8-20123.8 IU/mLStandard Deviation 29795.99
ARC-520 Cohort 7Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 3-12401.1 IU/mLStandard Deviation 17661.02
ARC-520 Cohort 7Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 22-23872.7 IU/mLStandard Deviation 35753.39
ARC-520 Cohort 7Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 43-23932.0 IU/mLStandard Deviation 35929.8
ARC-520 Cohort 7Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 29-24148.3 IU/mLStandard Deviation 36256.02
ARC-520 Cohort 7Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 15-22915.6 IU/mLStandard Deviation 34381.59
Placebo Normal Saline Cohorts 1-5Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 29168.8 IU/mLStandard Deviation 460.59
Placebo Normal Saline Cohorts 1-5Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 15236.6 IU/mLStandard Deviation 321.17
Placebo Normal Saline Cohorts 1-5Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 57156.1 IU/mLStandard Deviation 527.4
Placebo Normal Saline Cohorts 1-5Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 842.2 IU/mLStandard Deviation 568.32
Placebo Normal Saline Cohorts 1-5Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 343.3 IU/mLStandard Deviation 267.6
Placebo Normal Saline Cohorts 1-5Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 4358.3 IU/mLStandard Deviation 411.6
Placebo Normal Saline Cohorts 1-5Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 85225.4 IU/mLStandard Deviation 393.81
Placebo Normal Saline Cohorts 1-5Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 22115.1 IU/mLStandard Deviation 594.38
ARC-520 Cohort 10Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 253-643 IU/mLStandard Deviation 905
ARC-520 Cohort 10Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 29-22617 IU/mLStandard Deviation 32653
ARC-520 Cohort 10Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 1-19222 IU/mLStandard Deviation 27217
ARC-520 Cohort 10Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 85-23305 IU/mLStandard Deviation 32455
ARC-520 Cohort 10Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 225-1249 IU/mLStandard Deviation 1273
ARC-520 Cohort 10Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 197-30234 IU/mLStandard Deviation 34097
ARC-520 Cohort 10Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 57-22840 IU/mLStandard Deviation 32239
ARC-520 Cohort 10Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 169-26481 IU/mLStandard Deviation 33649
ARC-520 Cohort 10Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 141-23182 IU/mLStandard Deviation 32379
ARC-520 Cohort 10Change From Baseline Over Time in Quantitative Hepatitis B Surface Antigen (HBsAG)Day 113-23205 IU/mLStandard Deviation 32362
Secondary

Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7

Time frame: Baseline, Days 1, 2, 3, 8, 15, 22, 29

Population: Pharmacokinetic (PK) Population: all participants who received at least 1 dose of study drug and had evaluable PK data.

ArmMeasureGroupValue (MEAN)Dispersion
ARC-520 Cohort 1Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 220.04 ng/mLStandard Deviation 0.06
ARC-520 Cohort 1Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 150.01 ng/mLStandard Deviation 0.05
ARC-520 Cohort 1Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 20.06 ng/mLStandard Deviation 0.05
ARC-520 Cohort 1Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 10 ng/mLStandard Deviation 0
ARC-520 Cohort 1Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 290.00 ng/mLStandard Deviation 0.06
ARC-520 Cohort 1Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 3-0.02 ng/mLStandard Deviation 0.02
ARC-520 Cohort 1Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 8-0.01 ng/mLStandard Deviation 0.07
ARC-520 Cohort 2Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 15-0.03 ng/mLStandard Deviation 0.12
ARC-520 Cohort 2Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 10 ng/mLStandard Deviation 0
ARC-520 Cohort 2Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 3-0.06 ng/mLStandard Deviation 0.09
ARC-520 Cohort 2Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 20.06 ng/mLStandard Deviation 0.08
ARC-520 Cohort 2Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 29-0.01 ng/mLStandard Deviation 0.11
ARC-520 Cohort 2Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 22-0.02 ng/mLStandard Deviation 0.14
ARC-520 Cohort 2Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 8-0.09 ng/mLStandard Deviation 0.08
ARC-520 Cohort 3Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 290.01 ng/mLStandard Deviation 0.07
ARC-520 Cohort 3Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 20.13 ng/mLStandard Deviation 0.08
ARC-520 Cohort 3Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 8-0.09 ng/mLStandard Deviation 0.13
ARC-520 Cohort 3Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 3-0.06 ng/mLStandard Deviation 0.06
ARC-520 Cohort 3Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 22-0.03 ng/mLStandard Deviation 0.09
ARC-520 Cohort 3Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 15-0.03 ng/mLStandard Deviation 0.06
ARC-520 Cohort 3Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 10 ng/mLStandard Deviation 0
ARC-520 Cohort 4Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 290.00 ng/mLStandard Deviation 0.15
ARC-520 Cohort 4Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 10 ng/mLStandard Deviation 0
ARC-520 Cohort 4Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 20.12 ng/mLStandard Deviation 0.1
ARC-520 Cohort 4Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 8-0.03 ng/mLStandard Deviation 0.18
ARC-520 Cohort 4Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 150.00 ng/mLStandard Deviation 0.18
ARC-520 Cohort 4Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 30.12 ng/mLStandard Deviation 0.63
ARC-520 Cohort 4Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 220.00 ng/mLStandard Deviation 0.13
ARC-520 Cohort 5Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 10 ng/mLStandard Deviation 0
ARC-520 Cohort 5Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 2-0.91 ng/mLStandard Deviation 1.59
ARC-520 Cohort 5Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 3-1.04 ng/mLStandard Deviation 1.58
ARC-520 Cohort 5Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 8-1.01 ng/mLStandard Deviation 1.6
ARC-520 Cohort 5Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 15-1.01 ng/mLStandard Deviation 1.63
ARC-520 Cohort 5Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 22-1.00 ng/mLStandard Deviation 1.58
ARC-520 Cohort 5Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 29-1.00 ng/mLStandard Deviation 1.61
ARC-520 Cohort 6Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 30.15 ng/mLStandard Deviation 0.03
ARC-520 Cohort 6Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 20.16 ng/mLStandard Deviation 0.04
ARC-520 Cohort 6Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 80.45 ng/mLStandard Deviation 0.76
ARC-520 Cohort 6Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 10 ng/mLStandard Deviation 0
ARC-520 Cohort 6Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 290.36 ng/mLStandard Deviation 0.11
ARC-520 Cohort 6Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 220.33 ng/mLStandard Deviation 0.11
ARC-520 Cohort 6Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 150.32 ng/mLStandard Deviation 0.11
ARC-520 Cohort 7Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 22-0.30 ng/mLStandard Deviation 0.89
ARC-520 Cohort 7Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 3-0.29 ng/mLStandard Deviation 0.88
ARC-520 Cohort 7Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 2-0.31 ng/mLStandard Deviation 0.89
ARC-520 Cohort 7Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 15-0.10 ng/mLStandard Deviation 1.14
ARC-520 Cohort 7Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 10 ng/mLStandard Deviation 0
ARC-520 Cohort 7Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 8-0.30 ng/mLStandard Deviation 0.9
ARC-520 Cohort 7Change From Baseline in Entecavir Plasma Trough Concentration, Cohorts 1-7Day 29-0.30 ng/mLStandard Deviation 0.89
Secondary

Number of Participants With Negative Bee Venom Allergy Test Results at Baseline, Day 29, and Day 85

Bee venom allergy tests were used to assess immunoglobulin E (IgE) in Cohorts 1-7. Analysis values less than 0.35 kU/L were taken as negative.

Time frame: Baseline, Day 29, Day 85

Population: Safety Population: all participants who received any amount of study drug or placebo, and had at least 1 postdose safety assessment.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
ARC-520 Cohort 1Number of Participants With Negative Bee Venom Allergy Test Results at Baseline, Day 29, and Day 85Baseline6 Participants
ARC-520 Cohort 1Number of Participants With Negative Bee Venom Allergy Test Results at Baseline, Day 29, and Day 85Day 856 Participants
ARC-520 Cohort 1Number of Participants With Negative Bee Venom Allergy Test Results at Baseline, Day 29, and Day 85Day 296 Participants
ARC-520 Cohort 2Number of Participants With Negative Bee Venom Allergy Test Results at Baseline, Day 29, and Day 85Day 856 Participants
ARC-520 Cohort 2Number of Participants With Negative Bee Venom Allergy Test Results at Baseline, Day 29, and Day 85Baseline6 Participants
ARC-520 Cohort 2Number of Participants With Negative Bee Venom Allergy Test Results at Baseline, Day 29, and Day 85Day 296 Participants
ARC-520 Cohort 3Number of Participants With Negative Bee Venom Allergy Test Results at Baseline, Day 29, and Day 85Day 856 Participants
ARC-520 Cohort 3Number of Participants With Negative Bee Venom Allergy Test Results at Baseline, Day 29, and Day 85Baseline6 Participants
ARC-520 Cohort 3Number of Participants With Negative Bee Venom Allergy Test Results at Baseline, Day 29, and Day 85Day 296 Participants
ARC-520 Cohort 4Number of Participants With Negative Bee Venom Allergy Test Results at Baseline, Day 29, and Day 85Baseline6 Participants
ARC-520 Cohort 4Number of Participants With Negative Bee Venom Allergy Test Results at Baseline, Day 29, and Day 85Day 296 Participants
ARC-520 Cohort 4Number of Participants With Negative Bee Venom Allergy Test Results at Baseline, Day 29, and Day 85Day 856 Participants
ARC-520 Cohort 5Number of Participants With Negative Bee Venom Allergy Test Results at Baseline, Day 29, and Day 85Baseline6 Participants
ARC-520 Cohort 5Number of Participants With Negative Bee Venom Allergy Test Results at Baseline, Day 29, and Day 85Day 296 Participants
ARC-520 Cohort 5Number of Participants With Negative Bee Venom Allergy Test Results at Baseline, Day 29, and Day 85Day 856 Participants
ARC-520 Cohort 6Number of Participants With Negative Bee Venom Allergy Test Results at Baseline, Day 29, and Day 85Day 296 Participants
ARC-520 Cohort 6Number of Participants With Negative Bee Venom Allergy Test Results at Baseline, Day 29, and Day 85Baseline6 Participants
ARC-520 Cohort 6Number of Participants With Negative Bee Venom Allergy Test Results at Baseline, Day 29, and Day 85Day 856 Participants
ARC-520 Cohort 7Number of Participants With Negative Bee Venom Allergy Test Results at Baseline, Day 29, and Day 85Day 2911 Participants
ARC-520 Cohort 7Number of Participants With Negative Bee Venom Allergy Test Results at Baseline, Day 29, and Day 85Baseline12 Participants
ARC-520 Cohort 7Number of Participants With Negative Bee Venom Allergy Test Results at Baseline, Day 29, and Day 85Day 8511 Participants
Placebo Normal Saline Cohorts 1-5Number of Participants With Negative Bee Venom Allergy Test Results at Baseline, Day 29, and Day 85Baseline10 Participants
Placebo Normal Saline Cohorts 1-5Number of Participants With Negative Bee Venom Allergy Test Results at Baseline, Day 29, and Day 85Day 2910 Participants
Placebo Normal Saline Cohorts 1-5Number of Participants With Negative Bee Venom Allergy Test Results at Baseline, Day 29, and Day 85Day 8510 Participants
Secondary

Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)

An adverse event (AE) is any untoward medical occurrence which does not necessarily have a causal relationship with this treatment. An SAE is any AE that: results in death; is life-threatening; requires inpatient hospitalization or prolongation of an existing hospitalization; results in persistent or significant disability/incapacity; is a congenital anomaly/birth defect; or is a medically important event or reaction.Events were categorized as mild, moderate or severe. TEAEs were defined as all AEs starting or worsening after commencement of treatment with investigational product. A treatment-related TEAE was one whose relationship to treatment was noted as unlikely, possibly, or probably related.

Time frame: through Day 85 (Cohorts 1-7) and through 24 weeks post-last dose (last dose: Day 85 Cohort 9; Day 225 Cohort 10)

Population: Safety Population: all participants who received any amount of study drug or placebo, and had at least 1 postdose safety assessment. Data for Cohort 9 was not analyzed or summarized due to limited enrollment.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
ARC-520 Cohort 1Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any TEAE related to study drug0 Participants
ARC-520 Cohort 1Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any mild TEAE1 Participants
ARC-520 Cohort 1Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any severe TEAE0 Participants
ARC-520 Cohort 1Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any SAE related to study drug0 Participants
ARC-520 Cohort 1Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any SAE0 Participants
ARC-520 Cohort 1Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any SAE leading to death0 Participants
ARC-520 Cohort 1Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any TEAE leading to discontinuation of treatment0 Participants
ARC-520 Cohort 1Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any moderate TEAE0 Participants
ARC-520 Cohort 1Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any life-threatening SAE0 Participants
ARC-520 Cohort 1Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any TEAE1 Participants
ARC-520 Cohort 2Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any SAE leading to death0 Participants
ARC-520 Cohort 2Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any severe TEAE0 Participants
ARC-520 Cohort 2Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any life-threatening SAE0 Participants
ARC-520 Cohort 2Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any TEAE4 Participants
ARC-520 Cohort 2Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any SAE related to study drug0 Participants
ARC-520 Cohort 2Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any SAE0 Participants
ARC-520 Cohort 2Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any mild TEAE3 Participants
ARC-520 Cohort 2Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any TEAE leading to discontinuation of treatment0 Participants
ARC-520 Cohort 2Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any TEAE related to study drug0 Participants
ARC-520 Cohort 2Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any moderate TEAE1 Participants
ARC-520 Cohort 3Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any SAE leading to death0 Participants
ARC-520 Cohort 3Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any TEAE leading to discontinuation of treatment0 Participants
ARC-520 Cohort 3Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any severe TEAE0 Participants
ARC-520 Cohort 3Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any life-threatening SAE0 Participants
ARC-520 Cohort 3Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any TEAE1 Participants
ARC-520 Cohort 3Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any TEAE related to study drug0 Participants
ARC-520 Cohort 3Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any SAE0 Participants
ARC-520 Cohort 3Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any SAE related to study drug0 Participants
ARC-520 Cohort 3Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any moderate TEAE0 Participants
ARC-520 Cohort 3Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any mild TEAE1 Participants
ARC-520 Cohort 4Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any TEAE related to study drug0 Participants
ARC-520 Cohort 4Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any TEAE0 Participants
ARC-520 Cohort 4Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any SAE leading to death0 Participants
ARC-520 Cohort 4Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any mild TEAE0 Participants
ARC-520 Cohort 4Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any moderate TEAE0 Participants
ARC-520 Cohort 4Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any severe TEAE0 Participants
ARC-520 Cohort 4Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any TEAE leading to discontinuation of treatment0 Participants
ARC-520 Cohort 4Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any SAE0 Participants
ARC-520 Cohort 4Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any SAE related to study drug0 Participants
ARC-520 Cohort 4Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any life-threatening SAE0 Participants
ARC-520 Cohort 5Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any mild TEAE1 Participants
ARC-520 Cohort 5Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any TEAE leading to discontinuation of treatment0 Participants
ARC-520 Cohort 5Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any SAE0 Participants
ARC-520 Cohort 5Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any life-threatening SAE0 Participants
ARC-520 Cohort 5Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any moderate TEAE0 Participants
ARC-520 Cohort 5Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any SAE leading to death0 Participants
ARC-520 Cohort 5Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any SAE related to study drug0 Participants
ARC-520 Cohort 5Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any TEAE related to study drug0 Participants
ARC-520 Cohort 5Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any TEAE1 Participants
ARC-520 Cohort 5Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any severe TEAE0 Participants
ARC-520 Cohort 6Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any TEAE1 Participants
ARC-520 Cohort 6Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any SAE0 Participants
ARC-520 Cohort 6Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any TEAE leading to discontinuation of treatment0 Participants
ARC-520 Cohort 6Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any moderate TEAE0 Participants
ARC-520 Cohort 6Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any TEAE related to study drug0 Participants
ARC-520 Cohort 6Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any life-threatening SAE0 Participants
ARC-520 Cohort 6Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any severe TEAE0 Participants
ARC-520 Cohort 6Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any SAE leading to death0 Participants
ARC-520 Cohort 6Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any mild TEAE1 Participants
ARC-520 Cohort 6Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any SAE related to study drug0 Participants
ARC-520 Cohort 7Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any TEAE1 Participants
ARC-520 Cohort 7Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any severe TEAE0 Participants
ARC-520 Cohort 7Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any TEAE related to study drug0 Participants
ARC-520 Cohort 7Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any mild TEAE1 Participants
ARC-520 Cohort 7Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any TEAE leading to discontinuation of treatment0 Participants
ARC-520 Cohort 7Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any SAE leading to death0 Participants
ARC-520 Cohort 7Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any SAE0 Participants
ARC-520 Cohort 7Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any SAE related to study drug0 Participants
ARC-520 Cohort 7Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any life-threatening SAE0 Participants
ARC-520 Cohort 7Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any moderate TEAE0 Participants
Placebo Normal Saline Cohorts 1-5Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any TEAE related to study drug0 Participants
Placebo Normal Saline Cohorts 1-5Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any mild TEAE1 Participants
Placebo Normal Saline Cohorts 1-5Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any SAE0 Participants
Placebo Normal Saline Cohorts 1-5Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any moderate TEAE0 Participants
Placebo Normal Saline Cohorts 1-5Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any SAE related to study drug0 Participants
Placebo Normal Saline Cohorts 1-5Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any TEAE leading to discontinuation of treatment0 Participants
Placebo Normal Saline Cohorts 1-5Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any severe TEAE0 Participants
Placebo Normal Saline Cohorts 1-5Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any TEAE1 Participants
Placebo Normal Saline Cohorts 1-5Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any SAE leading to death0 Participants
Placebo Normal Saline Cohorts 1-5Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any life-threatening SAE0 Participants
ARC-520 Cohort 9Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any SAE related to study drug0 Participants
ARC-520 Cohort 9Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any SAE0 Participants
ARC-520 Cohort 9Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any life-threatening SAE0 Participants
ARC-520 Cohort 9Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any TEAE related to study drug4 Participants
ARC-520 Cohort 9Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any mild TEAE7 Participants
ARC-520 Cohort 9Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any moderate TEAE0 Participants
ARC-520 Cohort 9Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any SAE leading to death0 Participants
ARC-520 Cohort 9Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any severe TEAE0 Participants
ARC-520 Cohort 9Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any TEAE leading to discontinuation of treatment0 Participants
ARC-520 Cohort 9Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any TEAE7 Participants
ARC-520 Cohort 10Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any mild TEAE0 Participants
ARC-520 Cohort 10Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any severe TEAE0 Participants
ARC-520 Cohort 10Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any TEAE0 Participants
ARC-520 Cohort 10Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any SAE0 Participants
ARC-520 Cohort 10Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any moderate TEAE0 Participants
ARC-520 Cohort 10Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any life-threatening SAE0 Participants
ARC-520 Cohort 10Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any SAE related to study drug0 Participants
ARC-520 Cohort 10Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any SAE leading to death0 Participants
ARC-520 Cohort 10Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any TEAE leading to discontinuation of treatment0 Participants
ARC-520 Cohort 10Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Any TEAE related to study drug0 Participants
Secondary

Pharmacokinetics of ARC-520 of ARC-520 Product Constituents AD0009 and AD0010: Area Under the Plasma Concentration-Time Curve From Time 0 to the Last Quantifiable Plasma Concentration (AUClast), Cohorts 1-5

Time frame: Day 1 predose, immediately prior to the end of infusion, 0.5, 1, 3, 6, 24, and 48 hours postdose

Population: PK Population: all participants who received at least 1 dose of study drug and had evaluable PK data.

ArmMeasureGroupValue (MEAN)Dispersion
ARC-520 Cohort 1Pharmacokinetics of ARC-520 of ARC-520 Product Constituents AD0009 and AD0010: Area Under the Plasma Concentration-Time Curve From Time 0 to the Last Quantifiable Plasma Concentration (AUClast), Cohorts 1-5AD000981.4 µg*hr/mLStandard Deviation 9.25
ARC-520 Cohort 1Pharmacokinetics of ARC-520 of ARC-520 Product Constituents AD0009 and AD0010: Area Under the Plasma Concentration-Time Curve From Time 0 to the Last Quantifiable Plasma Concentration (AUClast), Cohorts 1-5AD001097.6 µg*hr/mLStandard Deviation 9.77
ARC-520 Cohort 2Pharmacokinetics of ARC-520 of ARC-520 Product Constituents AD0009 and AD0010: Area Under the Plasma Concentration-Time Curve From Time 0 to the Last Quantifiable Plasma Concentration (AUClast), Cohorts 1-5AD0009196 µg*hr/mLStandard Deviation 66.3
ARC-520 Cohort 2Pharmacokinetics of ARC-520 of ARC-520 Product Constituents AD0009 and AD0010: Area Under the Plasma Concentration-Time Curve From Time 0 to the Last Quantifiable Plasma Concentration (AUClast), Cohorts 1-5AD0010205 µg*hr/mLStandard Deviation 50.2
ARC-520 Cohort 3Pharmacokinetics of ARC-520 of ARC-520 Product Constituents AD0009 and AD0010: Area Under the Plasma Concentration-Time Curve From Time 0 to the Last Quantifiable Plasma Concentration (AUClast), Cohorts 1-5AD0009218 µg*hr/mLStandard Deviation 37.1
ARC-520 Cohort 3Pharmacokinetics of ARC-520 of ARC-520 Product Constituents AD0009 and AD0010: Area Under the Plasma Concentration-Time Curve From Time 0 to the Last Quantifiable Plasma Concentration (AUClast), Cohorts 1-5AD0010317 µg*hr/mLStandard Deviation 50.7
ARC-520 Cohort 4Pharmacokinetics of ARC-520 of ARC-520 Product Constituents AD0009 and AD0010: Area Under the Plasma Concentration-Time Curve From Time 0 to the Last Quantifiable Plasma Concentration (AUClast), Cohorts 1-5AD0010385 µg*hr/mLStandard Deviation 88
ARC-520 Cohort 4Pharmacokinetics of ARC-520 of ARC-520 Product Constituents AD0009 and AD0010: Area Under the Plasma Concentration-Time Curve From Time 0 to the Last Quantifiable Plasma Concentration (AUClast), Cohorts 1-5AD0009326 µg*hr/mLStandard Deviation 87.3
ARC-520 Cohort 5Pharmacokinetics of ARC-520 of ARC-520 Product Constituents AD0009 and AD0010: Area Under the Plasma Concentration-Time Curve From Time 0 to the Last Quantifiable Plasma Concentration (AUClast), Cohorts 1-5AD0009356 µg*hr/mLStandard Deviation 47.4
ARC-520 Cohort 5Pharmacokinetics of ARC-520 of ARC-520 Product Constituents AD0009 and AD0010: Area Under the Plasma Concentration-Time Curve From Time 0 to the Last Quantifiable Plasma Concentration (AUClast), Cohorts 1-5AD0010434 µg*hr/mLStandard Deviation 53.3
Secondary

Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Apparent Volume of Distribution During the Terminal Phase (Vz), Cohorts 1-5

Time frame: Day 1 predose, immediately prior to the end of infusion, 0.5, 1, 3, 6, 24, and 48 hours postdose

Population: PK Population: all participants who received at least 1 dose of study drug and had evaluable PK data.

ArmMeasureGroupValue (MEAN)Dispersion
ARC-520 Cohort 1Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Apparent Volume of Distribution During the Terminal Phase (Vz), Cohorts 1-5AD001039.4 mL/kgStandard Deviation 5.01
ARC-520 Cohort 1Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Apparent Volume of Distribution During the Terminal Phase (Vz), Cohorts 1-5AD000939.5 mL/kgStandard Deviation 4.13
ARC-520 Cohort 2Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Apparent Volume of Distribution During the Terminal Phase (Vz), Cohorts 1-5AD001046.1 mL/kgStandard Deviation 9.99
ARC-520 Cohort 2Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Apparent Volume of Distribution During the Terminal Phase (Vz), Cohorts 1-5AD000943.2 mL/kgStandard Deviation 15.8
ARC-520 Cohort 3Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Apparent Volume of Distribution During the Terminal Phase (Vz), Cohorts 1-5AD000945.7 mL/kgStandard Deviation 5.72
ARC-520 Cohort 3Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Apparent Volume of Distribution During the Terminal Phase (Vz), Cohorts 1-5AD001037.1 mL/kgStandard Deviation 2.52
ARC-520 Cohort 4Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Apparent Volume of Distribution During the Terminal Phase (Vz), Cohorts 1-5AD000939.0 mL/kgStandard Deviation 7.27
ARC-520 Cohort 4Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Apparent Volume of Distribution During the Terminal Phase (Vz), Cohorts 1-5AD001037.9 mL/kgStandard Deviation 5.83
ARC-520 Cohort 5Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Apparent Volume of Distribution During the Terminal Phase (Vz), Cohorts 1-5AD000935.4 mL/kgStandard Deviation 4.06
ARC-520 Cohort 5Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Apparent Volume of Distribution During the Terminal Phase (Vz), Cohorts 1-5AD001036.9 mL/kgStandard Deviation 3.18
Secondary

Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Area Under the Plasma Concentration-Time Curve From Time 0 Extrapolated to Infinity (AUCinf), Cohorts 1-5 Only

Time frame: Day 1 predose, immediately prior to the end of infusion, 0.5, 1, 3, 6, 24, and 48 hours postdose

Population: PK Population: all participants who received at least 1 dose of study drug and had evaluable PK data.

ArmMeasureGroupValue (MEAN)Dispersion
ARC-520 Cohort 1Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Area Under the Plasma Concentration-Time Curve From Time 0 Extrapolated to Infinity (AUCinf), Cohorts 1-5 OnlyAD000981.4 µg*hr/mLStandard Deviation 9.26
ARC-520 Cohort 1Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Area Under the Plasma Concentration-Time Curve From Time 0 Extrapolated to Infinity (AUCinf), Cohorts 1-5 OnlyAD001097.8 µg*hr/mLStandard Deviation 9.8
ARC-520 Cohort 2Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Area Under the Plasma Concentration-Time Curve From Time 0 Extrapolated to Infinity (AUCinf), Cohorts 1-5 OnlyAD0009196 µg*hr/mLStandard Deviation 66.3
ARC-520 Cohort 2Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Area Under the Plasma Concentration-Time Curve From Time 0 Extrapolated to Infinity (AUCinf), Cohorts 1-5 OnlyAD0010207 µg*hr/mLStandard Deviation 51.1
ARC-520 Cohort 3Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Area Under the Plasma Concentration-Time Curve From Time 0 Extrapolated to Infinity (AUCinf), Cohorts 1-5 OnlyAD0009218 µg*hr/mLStandard Deviation 37.2
ARC-520 Cohort 3Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Area Under the Plasma Concentration-Time Curve From Time 0 Extrapolated to Infinity (AUCinf), Cohorts 1-5 OnlyAD0010318 µg*hr/mLStandard Deviation 51.2
ARC-520 Cohort 4Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Area Under the Plasma Concentration-Time Curve From Time 0 Extrapolated to Infinity (AUCinf), Cohorts 1-5 OnlyAD0010386 µg*hr/mLStandard Deviation 88.6
ARC-520 Cohort 4Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Area Under the Plasma Concentration-Time Curve From Time 0 Extrapolated to Infinity (AUCinf), Cohorts 1-5 OnlyAD0009326 µg*hr/mLStandard Deviation 87.4
ARC-520 Cohort 5Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Area Under the Plasma Concentration-Time Curve From Time 0 Extrapolated to Infinity (AUCinf), Cohorts 1-5 OnlyAD0009356 µg*hr/mLStandard Deviation 47.4
ARC-520 Cohort 5Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Area Under the Plasma Concentration-Time Curve From Time 0 Extrapolated to Infinity (AUCinf), Cohorts 1-5 OnlyAD0010435 µg*hr/mLStandard Deviation 53.8
Secondary

Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Area Under the Plasma Concentration-Time Curve From Time 0 to 24 Hours (AUC0-24), Cohorts 1-5

Time frame: Day 1 predose, immediately prior to the end of infusion, 0.5, 1, 3, 6, 24, and 48 hours postdose

Population: PK Population: all participants who received at least 1 dose of study drug and had evaluable PK data.

ArmMeasureGroupValue (MEAN)Dispersion
ARC-520 Cohort 1Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Area Under the Plasma Concentration-Time Curve From Time 0 to 24 Hours (AUC0-24), Cohorts 1-5AD000979.1 µg*hr/mLStandard Deviation 8.28
ARC-520 Cohort 1Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Area Under the Plasma Concentration-Time Curve From Time 0 to 24 Hours (AUC0-24), Cohorts 1-5AD001093.0 µg*hr/mLStandard Deviation 9.11
ARC-520 Cohort 2Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Area Under the Plasma Concentration-Time Curve From Time 0 to 24 Hours (AUC0-24), Cohorts 1-5AD0009185 µg*hr/mLStandard Deviation 61.2
ARC-520 Cohort 2Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Area Under the Plasma Concentration-Time Curve From Time 0 to 24 Hours (AUC0-24), Cohorts 1-5AD0010190 µg*hr/mLStandard Deviation 43.2
ARC-520 Cohort 3Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Area Under the Plasma Concentration-Time Curve From Time 0 to 24 Hours (AUC0-24), Cohorts 1-5AD0009212 µg*hr/mLStandard Deviation 34.7
ARC-520 Cohort 3Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Area Under the Plasma Concentration-Time Curve From Time 0 to 24 Hours (AUC0-24), Cohorts 1-5AD0010301 µg*hr/mLStandard Deviation 43.9
ARC-520 Cohort 4Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Area Under the Plasma Concentration-Time Curve From Time 0 to 24 Hours (AUC0-24), Cohorts 1-5AD0010370 µg*hr/mLStandard Deviation 80.5
ARC-520 Cohort 4Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Area Under the Plasma Concentration-Time Curve From Time 0 to 24 Hours (AUC0-24), Cohorts 1-5AD0009318 µg*hr/mLStandard Deviation 82.3
ARC-520 Cohort 5Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Area Under the Plasma Concentration-Time Curve From Time 0 to 24 Hours (AUC0-24), Cohorts 1-5AD0009349 µg*hr/mLStandard Deviation 45.2
ARC-520 Cohort 5Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Area Under the Plasma Concentration-Time Curve From Time 0 to 24 Hours (AUC0-24), Cohorts 1-5AD0010412 µg*hr/mLStandard Deviation 47.5
Secondary

Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Clearance (CL), Cohorts 1-5

Time frame: Day 1 predose, immediately prior to the end of infusion, 0.5, 1, 3, 6, 24, and 48 hours postdose

Population: PK Population: all participants who received at least 1 dose of study drug and had evaluable PK data.

ArmMeasureGroupValue (MEAN)Dispersion
ARC-520 Cohort 1Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Clearance (CL), Cohorts 1-5AD00105.16 mL/hr/kgStandard Deviation 0.522
ARC-520 Cohort 1Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Clearance (CL), Cohorts 1-5AD00096.21 mL/hr/kgStandard Deviation 0.724
ARC-520 Cohort 2Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Clearance (CL), Cohorts 1-5AD00095.58 mL/hr/kgStandard Deviation 1.84
ARC-520 Cohort 2Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Clearance (CL), Cohorts 1-5AD00105.08 mL/hr/kgStandard Deviation 1.19
ARC-520 Cohort 3Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Clearance (CL), Cohorts 1-5AD00104.84 mL/hr/kgStandard Deviation 0.952
ARC-520 Cohort 3Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Clearance (CL), Cohorts 1-5AD00097.11 mL/hr/kgStandard Deviation 1.56
ARC-520 Cohort 4Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Clearance (CL), Cohorts 1-5AD00096.47 mL/hr/kgStandard Deviation 1.51
ARC-520 Cohort 4Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Clearance (CL), Cohorts 1-5AD00105.41 mL/hr/kgStandard Deviation 1.19
ARC-520 Cohort 5Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Clearance (CL), Cohorts 1-5AD00104.65 mL/hr/kgStandard Deviation 0.586
ARC-520 Cohort 5Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Clearance (CL), Cohorts 1-5AD00095.70 mL/hr/kgStandard Deviation 0.781
Secondary

Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Maximum Observed Plasma Concentration (Cmax), Cohorts 1-5

Time frame: Day 1 predose, immediately prior to the end of infusion, 0.5, 1, 3, 6, 24, and 48 hours postdose

Population: PK Population: all participants who received at least 1 dose of study drug and had evaluable PK data.

ArmMeasureGroupValue (MEAN)Dispersion
ARC-520 Cohort 1Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Maximum Observed Plasma Concentration (Cmax), Cohorts 1-5AD000913.7 µg/mLStandard Deviation 2.42
ARC-520 Cohort 1Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Maximum Observed Plasma Concentration (Cmax), Cohorts 1-5AD001012.7 µg/mLStandard Deviation 2.07
ARC-520 Cohort 2Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Maximum Observed Plasma Concentration (Cmax), Cohorts 1-5AD000926.4 µg/mLStandard Deviation 6.84
ARC-520 Cohort 2Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Maximum Observed Plasma Concentration (Cmax), Cohorts 1-5AD001022.5 µg/mLStandard Deviation 2.74
ARC-520 Cohort 3Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Maximum Observed Plasma Concentration (Cmax), Cohorts 1-5AD000933.5 µg/mLStandard Deviation 1.78
ARC-520 Cohort 3Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Maximum Observed Plasma Concentration (Cmax), Cohorts 1-5AD001039.7 µg/mLStandard Deviation 2.6
ARC-520 Cohort 4Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Maximum Observed Plasma Concentration (Cmax), Cohorts 1-5AD001050.5 µg/mLStandard Deviation 10.6
ARC-520 Cohort 4Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Maximum Observed Plasma Concentration (Cmax), Cohorts 1-5AD000954.8 µg/mLStandard Deviation 9.59
ARC-520 Cohort 5Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Maximum Observed Plasma Concentration (Cmax), Cohorts 1-5AD000958.2 µg/mLStandard Deviation 5.88
ARC-520 Cohort 5Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Maximum Observed Plasma Concentration (Cmax), Cohorts 1-5AD001052.4 µg/mLStandard Deviation 6.44
Secondary

Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Terminal Elimination Half-Life (t1/2), Cohorts 1-5

Time frame: Day 1 predose, immediately prior to the end of infusion, 0.5, 1, 3, 6, 24, and 48 hours postdose

Population: PK Population: all participants who received at least 1 dose of study drug and had evaluable PK data.

ArmMeasureGroupValue (MEDIAN)
ARC-520 Cohort 1Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Terminal Elimination Half-Life (t1/2), Cohorts 1-5AD00105.29 hours
ARC-520 Cohort 1Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Terminal Elimination Half-Life (t1/2), Cohorts 1-5AD00094.38 hours
ARC-520 Cohort 2Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Terminal Elimination Half-Life (t1/2), Cohorts 1-5AD00095.36 hours
ARC-520 Cohort 2Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Terminal Elimination Half-Life (t1/2), Cohorts 1-5AD00106.32 hours
ARC-520 Cohort 3Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Terminal Elimination Half-Life (t1/2), Cohorts 1-5AD00105.48 hours
ARC-520 Cohort 3Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Terminal Elimination Half-Life (t1/2), Cohorts 1-5AD00094.64 hours
ARC-520 Cohort 4Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Terminal Elimination Half-Life (t1/2), Cohorts 1-5AD00094.18 hours
ARC-520 Cohort 4Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Terminal Elimination Half-Life (t1/2), Cohorts 1-5AD00104.79 hours
ARC-520 Cohort 5Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Terminal Elimination Half-Life (t1/2), Cohorts 1-5AD00094.32 hours
ARC-520 Cohort 5Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Terminal Elimination Half-Life (t1/2), Cohorts 1-5AD00105.36 hours
Secondary

Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Terminal Elimination Rate Constant (Kel), Cohorts 1-5

Time frame: Day 1 predose, immediately prior to the end of infusion, 0.5, 1, 3, 6, 24, and 48 hours postdose

Population: PK Population: all participants who received at least 1 dose of study drug and had evaluable PK data.

ArmMeasureGroupValue (MEAN)Dispersion
ARC-520 Cohort 1Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Terminal Elimination Rate Constant (Kel), Cohorts 1-5AD00090.157 1/hrStandard Deviation 0.0115
ARC-520 Cohort 1Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Terminal Elimination Rate Constant (Kel), Cohorts 1-5AD00100.132 1/hrStandard Deviation 0.0131
ARC-520 Cohort 2Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Terminal Elimination Rate Constant (Kel), Cohorts 1-5AD00090.132 1/hrStandard Deviation 0.0242
ARC-520 Cohort 2Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Terminal Elimination Rate Constant (Kel), Cohorts 1-5AD00100.111 1/hrStandard Deviation 0.0188
ARC-520 Cohort 3Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Terminal Elimination Rate Constant (Kel), Cohorts 1-5AD00090.154 1/hrStandard Deviation 0.0135
ARC-520 Cohort 3Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Terminal Elimination Rate Constant (Kel), Cohorts 1-5AD00100.130 1/hrStandard Deviation 0.018
ARC-520 Cohort 4Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Terminal Elimination Rate Constant (Kel), Cohorts 1-5AD00100.142 1/hrStandard Deviation 0.0164
ARC-520 Cohort 4Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Terminal Elimination Rate Constant (Kel), Cohorts 1-5AD00090.165 1/hrStandard Deviation 0.012
ARC-520 Cohort 5Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Terminal Elimination Rate Constant (Kel), Cohorts 1-5AD00090.161 1/hrStandard Deviation 0.00614
ARC-520 Cohort 5Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Terminal Elimination Rate Constant (Kel), Cohorts 1-5AD00100.126 1/hrStandard Deviation 0.00793
Secondary

Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Volume in Steady State (Vss), Cohorts 1-5

Time frame: Day 1 predose, immediately prior to the end of infusion, 0.5, 1, 3, 6, 24, and 48 hours postdose

Population: PK Population: all participants who received at least 1 dose of study drug and had evaluable PK data.

ArmMeasureGroupValue (MEAN)Dispersion
ARC-520 Cohort 1Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Volume in Steady State (Vss), Cohorts 1-5AD000939.6 mL/kgStandard Deviation 6.05
ARC-520 Cohort 1Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Volume in Steady State (Vss), Cohorts 1-5AD001040.7 mL/kgStandard Deviation 6.01
ARC-520 Cohort 2Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Volume in Steady State (Vss), Cohorts 1-5AD000945.8 mL/kgStandard Deviation 11.6
ARC-520 Cohort 2Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Volume in Steady State (Vss), Cohorts 1-5AD001046.7 mL/kgStandard Deviation 8.22
ARC-520 Cohort 3Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Volume in Steady State (Vss), Cohorts 1-5AD000945.3 mL/kgStandard Deviation 3.6
ARC-520 Cohort 3Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Volume in Steady State (Vss), Cohorts 1-5AD001038.1 mL/kgStandard Deviation 2.08
ARC-520 Cohort 4Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Volume in Steady State (Vss), Cohorts 1-5AD001039.8 mL/kgStandard Deviation 6.36
ARC-520 Cohort 4Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Volume in Steady State (Vss), Cohorts 1-5AD000939.6 mL/kgStandard Deviation 6.31
ARC-520 Cohort 5Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Volume in Steady State (Vss), Cohorts 1-5AD000935.3 mL/kgStandard Deviation 3.57
ARC-520 Cohort 5Pharmacokinetics of ARC-520 Product Constituents AD0009 and AD0010: Volume in Steady State (Vss), Cohorts 1-5AD001038.5 mL/kgStandard Deviation 4.21

Source: ClinicalTrials.gov · Data processed: Feb 15, 2026