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A COVID-19 Study to Evaluate Safety and Pharmacokinetics of COVID-HIGIV Administered in Healthy Adults

A Phase 1, Double-blind, Randomized, Placebo-controlled Study to Evaluate Safety and Pharmacokinetics of Anti-SARS-CoV-2 Immunoglobulin Intravenous (Human) Investigational Product (COVID-HIGIV) Administered as a Single Dose Regimen to Healthy Adults

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04661839
Enrollment
28
Registered
2020-12-10
Start date
2020-12-24
Completion date
2021-07-27
Last updated
2025-06-08

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

Conditions

COVID-19

Keywords

SARS-CoV-2, Coronavirus disease 2019, Severe acute respiratory syndrome coronavirus 2, Immunoglobulins, Immunoglobulins, Intravenous, Antibodies

Brief summary

This study is designed to evaluate three dose levels of Anti-SARS-CoV-2 Immunoglobulin Intravenous (Human) (COVID-HIGIV) for safety and pharmacokinetics (PK) in healthy adults. Twenty-eight healthy adult subjects will be enrolled into the study to receive a single dose of COVID-HIGIV or placebo with 84 days of safety and PK follow-up post-administration.

Detailed description

This study will be a Phase 1, single-center, randomized, double-blind, placebo-controlled design to assess safety and PK of COVID-HIGIV in healthy adults. In total, 28 healthy adult subjects are to be enrolled and randomized 2:2:2:1 into four study treatment arms to receive a single intravenous (IV) infusion of one of three COVID-HIGIV dose levels or saline placebo, respectively. The enrollment/dosing of the first seven subjects in the study will be staggered. Available safety data will be reviewed by Study Monitoring Committee (SMC) after seven subjects have completed at least 72 hours of safety follow-up. Subjects will be followed up for safety and PK up to 84 days post-administration. The SMC will perform overall ongoing review of safety data during the study.

Interventions

BIOLOGICALCOVID-HIGIV

COVID-HIGIV is a purified immunoglobulin G (IgG) liquid preparation containing antibodies (including neutralizing antibodies) to SARS-CoV-2. COVID-HIGIV will be administered via intravenous infusion.

OTHERPlacebo (saline)

The reference product is a liquid solution of normal saline (0.9% weight per unit volume (w/v) sodium chloride). Placebo will be administered via intravenous infusion.

Sponsors

United States Department of Defense
CollaboratorFED
Emergent BioSolutions
Lead SponsorINDUSTRY

Study design

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

Eligibility

Sex/Gender
ALL
Age
18 Years to 60 Years
Healthy volunteers
Yes

Inclusion criteria

1. Able and willing to provide written informed consent (voluntarily signed by the subject) prior to performing study procedures. 2. Females and males 18-60 years of age, inclusive. 3. Have a body mass index (BMI) less than or equal to 35.0 kg/m2. 4. Women who are either: A) Not of childbearing potential: either surgically sterile (at least six weeks post bilateral tubal ligation, bilateral oophorectomy or hysterectomy); or post-menopausal (defined as ≥50 years of age with a history of ≥12 months without menses prior to randomization in the absence of other pathologic or physiologic causes, following cessation of exogenous sex-hormonal treatment); OR B) Women of childbearing potential (WOCBP) who are not planning to be pregnant during the study period and meet all of the following criteria: Negative serum pregnancy test (PT) at Screening; and Negative PT prior to dosing at Day 1; and Use of a highly effective contraception during the study period: * Hormonal contraceptives (e.g., implants, pills, patches) initiated ≥30 days prior to Day 1; or * Intrauterine device (IUD) inserted ≥30 days prior to Day 1; or * Double barrier type of birth control (e.g., male condom with female diaphragm, male condom with cervical cap). 5. Subject understands and agrees to comply with planned study procedures. 6. Healthy as determined by the Principal Investigator based on medical history, physical exam, vital signs, urinalysis, blood chemistry and hematology test results at Screening and evidence of no prior exposure to SARS-CoV-2 (i.e., Reverse transcription polymerase chain reaction \[RT-PCR\] negative for SARS-CoV-2 and negative for SARS-CoV-2 antibodies) at Screening.

Exclusion criteria

1. Use of any investigational product, within 30 days prior to Screening, or use of investigational SARS-CoV-2 vaccines, SARS-CoV-2 monoclonal antibodies or COVID-19 convalescent plasma at any time prior to Screening or during the study follow-up period, or subject plans to participate in another clinical study during the study period. 2. Screening clinical laboratory test result greater than the laboratory's upper limit of normal (ULN) for alanine aminotransferase (ALT), aspartate aminotransferase (AST), random glucose, total and/or bilirubin, blood urea nitrogen (BUN), or creatinine. Other serum chemistry parameters that are not within the reference range will not be considered exclusionary unless deemed clinically significant by the Principal Investigator. 3. History of allergy or hypersensitivity to blood or plasma products or to COVID-HIGIV excipients (proline, PS80). 4. History of allergy to latex or rubber. 5. History of hemolytic anemia. 6. History of Immunoglobulin A (IgA) deficiency. 7. Receipt of any blood product within the past 12 months. 8. Plasma donation within 7 days or significant blood loss or blood donation within 56 days of randomization/dosing. 9. History of known congenital or acquired immunodeficiency or receipt of immunosuppressive therapy (e.g., prednisone or equivalent for more than two consecutive weeks within the past three months). 10. History of thrombosis or hypercoagulable state with increased risk of thrombosis. 11. History of clinically significant chronic illness (e.g., requiring hospitalization in the past three months) such as cardiac, pulmonary, renal, hepatic or other chronic conditions. 12. Receipt of a live vaccine within 28 days prior to screening or anticipated receipt of a live vaccine during the study period. 13. Currently pregnant, breastfeeding, or planning to become pregnant during the study. 14. History of, or suspected substance abuse problem (including alcohol). 15. Other medical condition which may place subject at increased risk due to participation in the study as determined by the investigator. 16. Any planned elective surgery during the study period. 17. An opinion of the investigator that it would be unwise to allow the individual to be randomized into the study.

Design outcomes

Primary

MeasureTime frameDescription
Pharmacokinetics Parameter of Volume of Distribution (Vz) After Dose of COVID-HIGIVDay 1 through Day 85The volume of distribution (Vz) of SARS-CoV-2 binding IgG antibodies after dose of COVID-HIGIV. Data for PK calculations was collected: pre-dose within 2 hrs prior to dosing, and post-dose at: 1 hr, 2 hrs, 4 hrs, 8 hrs, 12 hrs, 24 hrs, Day 4, Day 8, Day 15, Day 22, Day 29, Day 43, Day 57 and Day 85.
Pharmacokinetics Parameter of Area Under the Concentration-time Curve (AUC) From Time 0 to 28 Days (AUC0-28d) After Dose of COVID-HIGIVDay 1 through Day 29AUC from time 0 to 28 days of SARS-CoV-2 binding IgG antibodies after COVID-HIGIV dose. Data for PK calculations was collected: pre-dose within 2 hrs prior to dosing, and post-dose at: 1 hr, 2 hrs, 4 hrs, 8 hrs, 12 hrs, 24 hrs, Day 4, Day 8, Day 15, Day 22, and Day 29.
Pharmacokinetics Parameter of Maximum Observed Concentration (Cmax) of SARS-CoV-2 Antibodies Observed After Dose of COVID-HIGIVDay 1 through Day 85The Cmax of SARS-CoV-2 binding IgG antibodies observed after COVID-HIGIV dose. Data for PK calculations was collected: pre-dose within 2 hrs prior to dosing, and post-dose at: 1 hr, 2 hrs, 4 hrs, 8 hrs, 12 hrs, 24 hrs, Day 4, Day 8, Day 15, Day 22, Day 29, Day 43, Day 57 and Day 85.
Pharmacokinetics Parameter of Time at Which Cmax Occurs After Dose of COVID-HIGIVDay 1 through Day 85Time at which Cmax occurs (Tmax) after COVID-HIGIV at each dose level .Data for PK calculations was collected: pre-dose within 2 hrs prior to dosing, and post-dose at: 1 hr, 2 hrs, 4 hrs, 8 hrs, 12 hrs, 24 hrs, Day 4, Day 8, Day 15, Day 22, Day 29, Day 43, Day 57 and Day 85.
Pharmacokinetics Parameter of Trough Concentration of SARS-CoV-2 Antibodies Observed 28 Days After Dose (Cmin28d) of COVID-HIGIVDay 1 through Day 29The observed trough concentration of SARS-CoV-2 binding IgG antibodies 28 days after COVID-HIGIV dose. Data for PK calculations was collected: pre-dose within 2 hrs prior to dosing, and post-dose at: 1 hr, 2 hrs, 4 hrs, 8 hrs, 12 hrs, 24 hrs, Day 4, Day 8, Day 15, Day 22, and Day 29.
Pharmacokinetics Parameter of Apparent Terminal Elimination Half-life (T1/2) After Dose of COVID-HIGIVDay 1 through Day 85The apparent terminal elimination half-life (T1/2) after dose of COVID-HIGIV. Data for PK calculations was collected: pre-dose within 2 hrs prior to dosing, and post-dose at: 1 hr, 2 hrs, 4 hrs, 8 hrs, 12 hrs, 24 hrs, Day 4, Day 8, Day 15, Day 22, Day 29, Day 43, Day 57 and Day 85.
Pharmacokinetics Parameter of Systemic Clearance (CL) After Dose of COVID-HIGIVDay 1 through Day 85The systemic clearance (CL) of SARS-CoV-2 binding IgG antibodies after dose of COVID-HIGIV. Data for PK calculations was collected: pre-dose within 2 hrs prior to dosing, and post-dose at: 1 hr, 2 hrs, 4 hrs, 8 hrs, 12 hrs, 24 hrs, Day 4, Day 8, Day 15, Day 22, Day 29, Day 43, Day 57 and Day 85.
Subjects With Adverse Events (AEs) up to 3 Days Post-dosingDay 1 through Day 4Number of subjects with AEs and severity of AEs up to 3 days post-dosing.
Subjects With Adverse Events That Led to Discontinuation or Temporary Suspension of IV Infusion0 hours to 2.5 hoursNumber of subjects and severity of treatment emergent adverse events (TEAEs) that led to discontinuation or temporary suspension of IV infusion.
Subjects With AEs and SAEs After IV InfusionDay 1 through Day 85Number of subjects with TEAEs and SAEs up to 84 days post-dosing.
Total Number of AEs and SAEs After IV InfusionDay 1 through Day 85Number of treatment emergent adverse events (TEAEs) and serious adverse events (SAEs) in all subjects reporting TEAEs/SAEs up to 84 days post-dosing.
Pharmacokinetics (PK) Parameter of Area Under the Concentration-time Curve (AUC) From Time 0 to the Last Quantifiable Concentration (AUC0-last) of SARS-CoV-2 Antibodies After Dose of COVID-HIGIVDay 1 through Day 85The area under the concentration-time curve from time 0 to the last quantifiable concentration of SARS-CoV-2 binding IgG antibodies after COVID-HIGIV dose. Data for PK calculations was collected: pre-dose within 2 hrs prior to dosing, and post-dose at: 1 hr, 2 hrs, 4 hrs, 8 hrs, 12 hrs, 24 hrs, Day 4, Day 8, Day 15, Day 22, Day 29, Day 43, Day 57 and Day 85.
Pharmacokinetics Parameter of Area Under the Concentration-time (AUC) From Time 0 to Infinity (AUC0-inf) After Dose of COVID-HIGIVDay 1 through Day 85Area under the concentration-time curve from time 0 to the last quantifiable concentration plus the additional area extrapolated to infinity of SARS-CoV-2 binding IgG antibodies after COVID-HIGIV dose. Data for PK calculations was collected: pre-dose within 2 hrs prior to dosing, and post-dose at: 1 hr, 2 hrs, 4 hrs, 8 hrs, 12 hrs, 24 hrs, Day 4, Day 8, Day 15, Day 22, Day 29, Day 43, Day 57 and Day 85.
Pharmacokinetics Parameter of Area Under the Concentration-time Curve (AUC) From Time 0 to 14 Days After Dose of COVID-HIGIVDay 1 through Day 15AUC from time 0 to 14 days (AUC0-14d) of SARS-CoV-2 binding IgG antibodies after COVID-HIGIV. Data for PK calculations was collected: pre-dose within 2 hrs prior to dosing, and post-dose at: 1 hr, 2 hrs, 4 hrs, 8 hrs, 12 hrs, 24 hrs, Day 4, Day 8, and Day 15.

Secondary

MeasureTime frameDescription
Body-weight Normalized Pharmacokinetics Parameter of Area Under the Concentration-time Curve (AUC) From Time 0 to the Last Quantifiable Concentration (AUC0-last) of SARS-CoV-2 Antibodies After Dose of COVID-HIGIVDay 1 through Day 85The body-weight normalized area under the concentration-time curve from time 0 to the last quantifiable concentration of SARS-CoV-2 binding IgG antibodies after COVID-HIGIV dose. Data for PK calculations was collected: pre-dose within 2 hrs prior to dosing, and post-dose at: 1 hr, 2 hrs, 4 hrs, 8 hrs, 12 hrs, 24 hrs, Day 4, Day 8, Day 15, Day 22, Day 29, Day 43, Day 57 and Day 85.
Body-weight Normalized Pharmacokinetics Parameter of Area Under the Concentration-time (AUC) From Time 0 to the Last Quantifiable Concentration of SARS-CoV-2 Antibodies Plus the Additional Area Extrapolated to Infinity (AUC0-inf) After Dose of COVID-HIGIVDay 1 through Day 85The body-weight normalized area under the concentration-time curve from time 0 to the last quantifiable concentration plus the additional area extrapolated to infinity of SARS-CoV-2 binding IgG antibodies after COVID-HIGIV dose. Data for PK calculations was collected: pre-dose within 2 hrs prior to dosing, and post-dose at: 1 hr, 2 hrs, 4 hrs, 8 hrs, 12 hrs, 24 hrs, Day 4, Day 8, Day 15, Day 22, Day 29, Day 43, Day 57 and Day 85.
Body-weight Normalized Pharmacokinetics Parameter of Area Under the Concentration-time Curve (AUC) From Time 0 to 14 Days (AUC0-14d) After Dose of COVID-HIGIVDay 1 through Day 15Body-weight normalized AUC from time 0 to 14 days of SARS-CoV-2 binding IgG antibodies after COVID-HIGIV. Data for PK calculations was collected: pre-dose within 2 hrs prior to dosing, and post-dose at: 1 hr, 2 hrs, 4 hrs, 8 hrs, 12 hrs, 24 hrs, Day 4, Day 8, and Day 15.
Body-weight Normalized Pharmacokinetics Parameter of Area Under the Concentration-time Curve (AUC) From Time 0 to 28 Days (AUC0-28d) After Dose of COVID-HIGIVDay 1 through Day 29AUC from time 0 to 28 days of SARS-CoV-2 binding IgG antibodies after COVID-HIGIV dose. Data for PK calculations was collected: pre-dose within 2 hrs prior to dosing, and post-dose at: 1 hr, 2 hrs, 4 hrs, 8 hrs, 12 hrs, 24 hrs, Day 4, Day 8, Day 15, Day 22, and Day 29.
Body-weight Normalized Pharmacokinetics Parameter of Trough Concentration of SARS-CoV-2 Antibodies Observed 28 Days After Dose (Cmin28d) of COVID-HIGIVDay 1 through Day 29The body-weight normalized observed trough concentration of SARS-CoV-2 binding IgG antibodies 28 days after COVID-HIGIV dose. Data for PK calculations was collected: pre-dose within 2 hrs prior to dosing, and post-dose at: 1 hr, 2 hrs, 4 hrs, 8 hrs, 12 hrs, 24 hrs, Day 4, Day 8, Day 15, Day 22, and Day 29.
Body-weight Normalized Pharmacokinetics Parameter of Maximum Observed Concentration of SARS-CoV-2 Antibodies Observed After Dose of COVID-HIGIVDay 1 through Day 85The body-weight normalized Cmax (CmaxBWN) of SARS-CoV-2 binding antibodies observed after COVID-HIGIV dose. Data for PK calculations was collected: pre-dose within 2 hrs prior to dosing, and post-dose at: 1 hr, 2 hrs, 4 hrs, 8 hrs, 12 hrs, 24 hrs, Day 4, Day 8, Day 15, Day 22, Day 29, Day 43, Day 57 and Day 85.

Countries

United States

Participant flow

Participants by arm

ArmCount
COVID-HIGIV Dose Level 1 (100 mg/kg)
Eligible subjects will be randomized to receive a single IV infusion of COVID-HIGIV dose level 1 (100 mg/kg). COVID-HIGIV: COVID-HIGIV is a purified immunoglobulin G (IgG) liquid preparation containing antibodies (including neutralizing antibodies) to SARS-CoV-2. COVID-HIGIV will be administered via intravenous infusion.
8
COVID-HIGIV Dose Level 2 (200 mg/kg)
Eligible subjects will be randomized to receive a single IV infusion of COVID-HIGIV dose level 2 (200 mg/kg). COVID-HIGIV: COVID-HIGIV is a purified immunoglobulin G (IgG) liquid preparation containing antibodies (including neutralizing antibodies) to SARS-CoV-2. COVID-HIGIV will be administered via intravenous infusion.
8
COVID-HIGIV Dose Level 3 (400 mg/kg)
Eligible subjects will be randomized to receive a single IV infusion of COVID-HIGIV dose level 3 (400 mg/kg). COVID-HIGIV: COVID-HIGIV is a purified immunoglobulin G (IgG) liquid preparation containing antibodies (including neutralizing antibodies) to SARS-CoV-2. COVID-HIGIV will be administered via intravenous infusion.
7
Dose Placebo (Saline)
Eligible subjects will be randomized to receive a single IV infusion of saline placebo. Placebo (saline): The reference product is a liquid solution of normal saline (0.9% weight per unit volume (w/v) sodium chloride). Placebo will be administered via intravenous infusion.
4
Total27

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003
Overall StudyLost to Follow-up1001
Overall StudyNot Treated0010

Baseline characteristics

CharacteristicCOVID-HIGIV Dose Level 1 (100 mg/kg)COVID-HIGIV Dose Level 2 (200 mg/kg)COVID-HIGIV Dose Level 3 (400 mg/kg)Dose Placebo (Saline)Total
Age, Continuous28.4 years
STANDARD_DEVIATION 10.2
31.5 years
STANDARD_DEVIATION 9.5
33.9 years
STANDARD_DEVIATION 14
27.8 years
STANDARD_DEVIATION 8.3
30.6 years
STANDARD_DEVIATION 10.5
Baseline body mass index24.1 kilograms per meter squared (kg/m^2)
STANDARD_DEVIATION 3.7
26.9 kilograms per meter squared (kg/m^2)
STANDARD_DEVIATION 4.5
25.9 kilograms per meter squared (kg/m^2)
STANDARD_DEVIATION 3.2
23.5 kilograms per meter squared (kg/m^2)
STANDARD_DEVIATION 1.2
25.3 kilograms per meter squared (kg/m^2)
STANDARD_DEVIATION 3.7
Baseline weight72.2 kilograms
STANDARD_DEVIATION 11.9
79.3 kilograms
STANDARD_DEVIATION 12.4
74.1 kilograms
STANDARD_DEVIATION 15.9
80.8 kilograms
STANDARD_DEVIATION 15.7
76.1 kilograms
STANDARD_DEVIATION 13.4
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants2 Participants3 Participants2 Participants8 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
7 Participants6 Participants4 Participants2 Participants19 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants
Height173.0 centimeters
STANDARD_DEVIATION 8.9
172.1 centimeters
STANDARD_DEVIATION 12.2
168.4 centimeters
STANDARD_DEVIATION 12.3
184.8 centimeters
STANDARD_DEVIATION 14.9
173.3 centimeters
STANDARD_DEVIATION 12.2
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
1 Participants0 Participants0 Participants0 Participants1 Participants
Race (NIH/OMB)
Black or African American
2 Participants2 Participants2 Participants1 Participants7 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants1 Participants2 Participants2 Participants5 Participants
Race (NIH/OMB)
White
5 Participants5 Participants3 Participants1 Participants14 Participants
Sex: Female, Male
Female
3 Participants3 Participants3 Participants1 Participants10 Participants
Sex: Female, Male
Male
5 Participants5 Participants4 Participants3 Participants17 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
0 / 80 / 80 / 70 / 4
other
Total, other adverse events
3 / 86 / 86 / 73 / 4
serious
Total, serious adverse events
0 / 80 / 80 / 71 / 4

Outcome results

Primary

Pharmacokinetics Parameter of Apparent Terminal Elimination Half-life (T1/2) After Dose of COVID-HIGIV

The apparent terminal elimination half-life (T1/2) after dose of COVID-HIGIV. Data for PK calculations was collected: pre-dose within 2 hrs prior to dosing, and post-dose at: 1 hr, 2 hrs, 4 hrs, 8 hrs, 12 hrs, 24 hrs, Day 4, Day 8, Day 15, Day 22, Day 29, Day 43, Day 57 and Day 85.

Time frame: Day 1 through Day 85

Population: The PK population included all subjects who received COVID-HIGIV and had an adequate set of evaluable PK samples (a suitable predose sample and at least one measurable postdose sample).

ArmMeasureValue (MEAN)Dispersion
COVID-HIGIV Dose Level 1 (100 mg/kg)Pharmacokinetics Parameter of Apparent Terminal Elimination Half-life (T1/2) After Dose of COVID-HIGIV583.13 hoursStandard Deviation 237.39
COVID-HIGIV Dose Level 2 (200 mg/kg)Pharmacokinetics Parameter of Apparent Terminal Elimination Half-life (T1/2) After Dose of COVID-HIGIV752.87 hoursStandard Deviation 257.67
COVID-HIGIV Dose Level 3 (400 mg/kg)Pharmacokinetics Parameter of Apparent Terminal Elimination Half-life (T1/2) After Dose of COVID-HIGIV618.79 hoursStandard Deviation 148.64
Primary

Pharmacokinetics Parameter of Area Under the Concentration-time (AUC) From Time 0 to Infinity (AUC0-inf) After Dose of COVID-HIGIV

Area under the concentration-time curve from time 0 to the last quantifiable concentration plus the additional area extrapolated to infinity of SARS-CoV-2 binding IgG antibodies after COVID-HIGIV dose. Data for PK calculations was collected: pre-dose within 2 hrs prior to dosing, and post-dose at: 1 hr, 2 hrs, 4 hrs, 8 hrs, 12 hrs, 24 hrs, Day 4, Day 8, Day 15, Day 22, Day 29, Day 43, Day 57 and Day 85.

Time frame: Day 1 through Day 85

Population: The PK population included all subjects who received COVID-HIGIV and had an adequate set of evaluable PK samples (a suitable predose sample and at least one measurable postdose sample).

ArmMeasureValue (GEOMETRIC_MEAN)
COVID-HIGIV Dose Level 1 (100 mg/kg)Pharmacokinetics Parameter of Area Under the Concentration-time (AUC) From Time 0 to Infinity (AUC0-inf) After Dose of COVID-HIGIV3818.25 h*AU/mL
COVID-HIGIV Dose Level 2 (200 mg/kg)Pharmacokinetics Parameter of Area Under the Concentration-time (AUC) From Time 0 to Infinity (AUC0-inf) After Dose of COVID-HIGIV8255.74 h*AU/mL
COVID-HIGIV Dose Level 3 (400 mg/kg)Pharmacokinetics Parameter of Area Under the Concentration-time (AUC) From Time 0 to Infinity (AUC0-inf) After Dose of COVID-HIGIV13028.08 h*AU/mL
Primary

Pharmacokinetics Parameter of Area Under the Concentration-time Curve (AUC) From Time 0 to 14 Days After Dose of COVID-HIGIV

AUC from time 0 to 14 days (AUC0-14d) of SARS-CoV-2 binding IgG antibodies after COVID-HIGIV. Data for PK calculations was collected: pre-dose within 2 hrs prior to dosing, and post-dose at: 1 hr, 2 hrs, 4 hrs, 8 hrs, 12 hrs, 24 hrs, Day 4, Day 8, and Day 15.

Time frame: Day 1 through Day 15

Population: The PK population included all subjects who received COVID-HIGIV and had an adequate set of evaluable PK samples (a suitable predose sample and at least one measurable postdose sample).

ArmMeasureValue (GEOMETRIC_MEAN)
COVID-HIGIV Dose Level 1 (100 mg/kg)Pharmacokinetics Parameter of Area Under the Concentration-time Curve (AUC) From Time 0 to 14 Days After Dose of COVID-HIGIV3398.55 h*AU/mL
COVID-HIGIV Dose Level 2 (200 mg/kg)Pharmacokinetics Parameter of Area Under the Concentration-time Curve (AUC) From Time 0 to 14 Days After Dose of COVID-HIGIV6834.66 h*AU/mL
COVID-HIGIV Dose Level 3 (400 mg/kg)Pharmacokinetics Parameter of Area Under the Concentration-time Curve (AUC) From Time 0 to 14 Days After Dose of COVID-HIGIV11722.82 h*AU/mL
Primary

Pharmacokinetics Parameter of Area Under the Concentration-time Curve (AUC) From Time 0 to 28 Days (AUC0-28d) After Dose of COVID-HIGIV

AUC from time 0 to 28 days of SARS-CoV-2 binding IgG antibodies after COVID-HIGIV dose. Data for PK calculations was collected: pre-dose within 2 hrs prior to dosing, and post-dose at: 1 hr, 2 hrs, 4 hrs, 8 hrs, 12 hrs, 24 hrs, Day 4, Day 8, Day 15, Day 22, and Day 29.

Time frame: Day 1 through Day 29

Population: The PK population included all subjects who received COVID-HIGIV and had an adequate set of evaluable PK samples (a suitable predose sample and at least one measurable postdose sample).

ArmMeasureValue (GEOMETRIC_MEAN)
COVID-HIGIV Dose Level 1 (100 mg/kg)Pharmacokinetics Parameter of Area Under the Concentration-time Curve (AUC) From Time 0 to 28 Days (AUC0-28d) After Dose of COVID-HIGIV2961.93 h*AU/mL
COVID-HIGIV Dose Level 2 (200 mg/kg)Pharmacokinetics Parameter of Area Under the Concentration-time Curve (AUC) From Time 0 to 28 Days (AUC0-28d) After Dose of COVID-HIGIV6678.80 h*AU/mL
COVID-HIGIV Dose Level 3 (400 mg/kg)Pharmacokinetics Parameter of Area Under the Concentration-time Curve (AUC) From Time 0 to 28 Days (AUC0-28d) After Dose of COVID-HIGIV11296.33 h*AU/mL
Primary

Pharmacokinetics Parameter of Maximum Observed Concentration (Cmax) of SARS-CoV-2 Antibodies Observed After Dose of COVID-HIGIV

The Cmax of SARS-CoV-2 binding IgG antibodies observed after COVID-HIGIV dose. Data for PK calculations was collected: pre-dose within 2 hrs prior to dosing, and post-dose at: 1 hr, 2 hrs, 4 hrs, 8 hrs, 12 hrs, 24 hrs, Day 4, Day 8, Day 15, Day 22, Day 29, Day 43, Day 57 and Day 85.

Time frame: Day 1 through Day 85

Population: The PK population included all subjects who received COVID-HIGIV and had an adequate set of evaluable PK samples (a suitable predose sample and at least one measurable postdose sample).

ArmMeasureValue (GEOMETRIC_MEAN)
COVID-HIGIV Dose Level 1 (100 mg/kg)Pharmacokinetics Parameter of Maximum Observed Concentration (Cmax) of SARS-CoV-2 Antibodies Observed After Dose of COVID-HIGIV7.69 AU/mL
COVID-HIGIV Dose Level 2 (200 mg/kg)Pharmacokinetics Parameter of Maximum Observed Concentration (Cmax) of SARS-CoV-2 Antibodies Observed After Dose of COVID-HIGIV17.02 AU/mL
COVID-HIGIV Dose Level 3 (400 mg/kg)Pharmacokinetics Parameter of Maximum Observed Concentration (Cmax) of SARS-CoV-2 Antibodies Observed After Dose of COVID-HIGIV33.27 AU/mL
Primary

Pharmacokinetics Parameter of Systemic Clearance (CL) After Dose of COVID-HIGIV

The systemic clearance (CL) of SARS-CoV-2 binding IgG antibodies after dose of COVID-HIGIV. Data for PK calculations was collected: pre-dose within 2 hrs prior to dosing, and post-dose at: 1 hr, 2 hrs, 4 hrs, 8 hrs, 12 hrs, 24 hrs, Day 4, Day 8, Day 15, Day 22, Day 29, Day 43, Day 57 and Day 85.

Time frame: Day 1 through Day 85

Population: The PK population included all subjects who received COVID-HIGIV and had an adequate set of evaluable PK samples (a suitable predose sample and at least one measurable postdose sample).

ArmMeasureValue (GEOMETRIC_MEAN)
COVID-HIGIV Dose Level 1 (100 mg/kg)Pharmacokinetics Parameter of Systemic Clearance (CL) After Dose of COVID-HIGIV0.0194 mL/h
COVID-HIGIV Dose Level 2 (200 mg/kg)Pharmacokinetics Parameter of Systemic Clearance (CL) After Dose of COVID-HIGIV0.0188 mL/h
COVID-HIGIV Dose Level 3 (400 mg/kg)Pharmacokinetics Parameter of Systemic Clearance (CL) After Dose of COVID-HIGIV0.0223 mL/h
Primary

Pharmacokinetics Parameter of Time at Which Cmax Occurs After Dose of COVID-HIGIV

Time at which Cmax occurs (Tmax) after COVID-HIGIV at each dose level .Data for PK calculations was collected: pre-dose within 2 hrs prior to dosing, and post-dose at: 1 hr, 2 hrs, 4 hrs, 8 hrs, 12 hrs, 24 hrs, Day 4, Day 8, Day 15, Day 22, Day 29, Day 43, Day 57 and Day 85.

Time frame: Day 1 through Day 85

Population: The PK population included all subjects who received COVID-HIGIV and had an adequate set of evaluable PK samples (a suitable predose sample and at least one measurable postdose sample).

ArmMeasureValue (MEAN)Dispersion
COVID-HIGIV Dose Level 1 (100 mg/kg)Pharmacokinetics Parameter of Time at Which Cmax Occurs After Dose of COVID-HIGIV7.09 hoursStandard Deviation 7.84
COVID-HIGIV Dose Level 2 (200 mg/kg)Pharmacokinetics Parameter of Time at Which Cmax Occurs After Dose of COVID-HIGIV7.93 hoursStandard Deviation 6.81
COVID-HIGIV Dose Level 3 (400 mg/kg)Pharmacokinetics Parameter of Time at Which Cmax Occurs After Dose of COVID-HIGIV5.36 hoursStandard Deviation 1.46
Primary

Pharmacokinetics Parameter of Trough Concentration of SARS-CoV-2 Antibodies Observed 28 Days After Dose (Cmin28d) of COVID-HIGIV

The observed trough concentration of SARS-CoV-2 binding IgG antibodies 28 days after COVID-HIGIV dose. Data for PK calculations was collected: pre-dose within 2 hrs prior to dosing, and post-dose at: 1 hr, 2 hrs, 4 hrs, 8 hrs, 12 hrs, 24 hrs, Day 4, Day 8, Day 15, Day 22, and Day 29.

Time frame: Day 1 through Day 29

Population: The PK population included all subjects who received COVID-HIGIV and had an adequate set of evaluable PK samples (a suitable predose sample and at least one measurable postdose sample).

ArmMeasureValue (GEOMETRIC_MEAN)
COVID-HIGIV Dose Level 1 (100 mg/kg)Pharmacokinetics Parameter of Trough Concentration of SARS-CoV-2 Antibodies Observed 28 Days After Dose (Cmin28d) of COVID-HIGIV2.06 AU/mL
COVID-HIGIV Dose Level 2 (200 mg/kg)Pharmacokinetics Parameter of Trough Concentration of SARS-CoV-2 Antibodies Observed 28 Days After Dose (Cmin28d) of COVID-HIGIV3.33 AU/mL
COVID-HIGIV Dose Level 3 (400 mg/kg)Pharmacokinetics Parameter of Trough Concentration of SARS-CoV-2 Antibodies Observed 28 Days After Dose (Cmin28d) of COVID-HIGIV5.47 AU/mL
Primary

Pharmacokinetics Parameter of Volume of Distribution (Vz) After Dose of COVID-HIGIV

The volume of distribution (Vz) of SARS-CoV-2 binding IgG antibodies after dose of COVID-HIGIV. Data for PK calculations was collected: pre-dose within 2 hrs prior to dosing, and post-dose at: 1 hr, 2 hrs, 4 hrs, 8 hrs, 12 hrs, 24 hrs, Day 4, Day 8, Day 15, Day 22, Day 29, Day 43, Day 57 and Day 85.

Time frame: Day 1 through Day 85

Population: The PK population included all subjects who received COVID-HIGIV and had an adequate set of evaluable PK samples (a suitable predose sample and at least one measurable postdose sample).

ArmMeasureValue (GEOMETRIC_MEAN)
COVID-HIGIV Dose Level 1 (100 mg/kg)Pharmacokinetics Parameter of Volume of Distribution (Vz) After Dose of COVID-HIGIV15.19 mL
COVID-HIGIV Dose Level 2 (200 mg/kg)Pharmacokinetics Parameter of Volume of Distribution (Vz) After Dose of COVID-HIGIV19.72 mL
COVID-HIGIV Dose Level 3 (400 mg/kg)Pharmacokinetics Parameter of Volume of Distribution (Vz) After Dose of COVID-HIGIV19.40 mL
Primary

Pharmacokinetics (PK) Parameter of Area Under the Concentration-time Curve (AUC) From Time 0 to the Last Quantifiable Concentration (AUC0-last) of SARS-CoV-2 Antibodies After Dose of COVID-HIGIV

The area under the concentration-time curve from time 0 to the last quantifiable concentration of SARS-CoV-2 binding IgG antibodies after COVID-HIGIV dose. Data for PK calculations was collected: pre-dose within 2 hrs prior to dosing, and post-dose at: 1 hr, 2 hrs, 4 hrs, 8 hrs, 12 hrs, 24 hrs, Day 4, Day 8, Day 15, Day 22, Day 29, Day 43, Day 57 and Day 85.

Time frame: Day 1 through Day 85

Population: The PK population included all subjects who received COVID-HIGIV and had an adequate set of evaluable PK samples (a suitable predose sample and at least one measurable postdose sample).

ArmMeasureValue (GEOMETRIC_MEAN)
COVID-HIGIV Dose Level 1 (100 mg/kg)Pharmacokinetics (PK) Parameter of Area Under the Concentration-time Curve (AUC) From Time 0 to the Last Quantifiable Concentration (AUC0-last) of SARS-CoV-2 Antibodies After Dose of COVID-HIGIV2961.93 h*Alliance Units (AU)/mL
COVID-HIGIV Dose Level 2 (200 mg/kg)Pharmacokinetics (PK) Parameter of Area Under the Concentration-time Curve (AUC) From Time 0 to the Last Quantifiable Concentration (AUC0-last) of SARS-CoV-2 Antibodies After Dose of COVID-HIGIV6678.80 h*Alliance Units (AU)/mL
COVID-HIGIV Dose Level 3 (400 mg/kg)Pharmacokinetics (PK) Parameter of Area Under the Concentration-time Curve (AUC) From Time 0 to the Last Quantifiable Concentration (AUC0-last) of SARS-CoV-2 Antibodies After Dose of COVID-HIGIV11722.82 h*Alliance Units (AU)/mL
Primary

Subjects With Adverse Events (AEs) up to 3 Days Post-dosing

Number of subjects with AEs and severity of AEs up to 3 days post-dosing.

Time frame: Day 1 through Day 4

Population: Safety population includes all subjects who received any amount of study treatment.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
COVID-HIGIV Dose Level 1 (100 mg/kg)Subjects With Adverse Events (AEs) up to 3 Days Post-dosingSubjects with an adverse event (AE)3 Participants
COVID-HIGIV Dose Level 1 (100 mg/kg)Subjects With Adverse Events (AEs) up to 3 Days Post-dosingSubjects with a severe adverse event (SAE)0 Participants
COVID-HIGIV Dose Level 2 (200 mg/kg)Subjects With Adverse Events (AEs) up to 3 Days Post-dosingSubjects with a severe adverse event (SAE)0 Participants
COVID-HIGIV Dose Level 2 (200 mg/kg)Subjects With Adverse Events (AEs) up to 3 Days Post-dosingSubjects with an adverse event (AE)4 Participants
COVID-HIGIV Dose Level 3 (400 mg/kg)Subjects With Adverse Events (AEs) up to 3 Days Post-dosingSubjects with an adverse event (AE)6 Participants
COVID-HIGIV Dose Level 3 (400 mg/kg)Subjects With Adverse Events (AEs) up to 3 Days Post-dosingSubjects with a severe adverse event (SAE)0 Participants
Dose Placebo (Saline)Subjects With Adverse Events (AEs) up to 3 Days Post-dosingSubjects with an adverse event (AE)2 Participants
Dose Placebo (Saline)Subjects With Adverse Events (AEs) up to 3 Days Post-dosingSubjects with a severe adverse event (SAE)0 Participants
Primary

Subjects With Adverse Events That Led to Discontinuation or Temporary Suspension of IV Infusion

Number of subjects and severity of treatment emergent adverse events (TEAEs) that led to discontinuation or temporary suspension of IV infusion.

Time frame: 0 hours to 2.5 hours

Population: Safety population includes all subjects who received any amount of study treatment.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
COVID-HIGIV Dose Level 1 (100 mg/kg)Subjects With Adverse Events That Led to Discontinuation or Temporary Suspension of IV InfusionAny TEAE leading to infusion interruption1 Participants
COVID-HIGIV Dose Level 1 (100 mg/kg)Subjects With Adverse Events That Led to Discontinuation or Temporary Suspension of IV InfusionAny TEAE leading to infusion discontinuation0 Participants
COVID-HIGIV Dose Level 2 (200 mg/kg)Subjects With Adverse Events That Led to Discontinuation or Temporary Suspension of IV InfusionAny TEAE leading to infusion discontinuation0 Participants
COVID-HIGIV Dose Level 2 (200 mg/kg)Subjects With Adverse Events That Led to Discontinuation or Temporary Suspension of IV InfusionAny TEAE leading to infusion interruption1 Participants
COVID-HIGIV Dose Level 3 (400 mg/kg)Subjects With Adverse Events That Led to Discontinuation or Temporary Suspension of IV InfusionAny TEAE leading to infusion interruption1 Participants
COVID-HIGIV Dose Level 3 (400 mg/kg)Subjects With Adverse Events That Led to Discontinuation or Temporary Suspension of IV InfusionAny TEAE leading to infusion discontinuation0 Participants
Dose Placebo (Saline)Subjects With Adverse Events That Led to Discontinuation or Temporary Suspension of IV InfusionAny TEAE leading to infusion interruption0 Participants
Dose Placebo (Saline)Subjects With Adverse Events That Led to Discontinuation or Temporary Suspension of IV InfusionAny TEAE leading to infusion discontinuation0 Participants
Primary

Subjects With AEs and SAEs After IV Infusion

Number of subjects with TEAEs and SAEs up to 84 days post-dosing.

Time frame: Day 1 through Day 85

Population: Safety population includes all subjects who received any amount of study treatment.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
COVID-HIGIV Dose Level 1 (100 mg/kg)Subjects With AEs and SAEs After IV InfusionNumber of subjects with any TEAE3 Participants
COVID-HIGIV Dose Level 1 (100 mg/kg)Subjects With AEs and SAEs After IV InfusionNumber of subjects with serious adverse events (SAEs)0 Participants
COVID-HIGIV Dose Level 2 (200 mg/kg)Subjects With AEs and SAEs After IV InfusionNumber of subjects with serious adverse events (SAEs)0 Participants
COVID-HIGIV Dose Level 2 (200 mg/kg)Subjects With AEs and SAEs After IV InfusionNumber of subjects with any TEAE6 Participants
COVID-HIGIV Dose Level 3 (400 mg/kg)Subjects With AEs and SAEs After IV InfusionNumber of subjects with serious adverse events (SAEs)0 Participants
COVID-HIGIV Dose Level 3 (400 mg/kg)Subjects With AEs and SAEs After IV InfusionNumber of subjects with any TEAE6 Participants
Dose Placebo (Saline)Subjects With AEs and SAEs After IV InfusionNumber of subjects with serious adverse events (SAEs)1 Participants
Dose Placebo (Saline)Subjects With AEs and SAEs After IV InfusionNumber of subjects with any TEAE3 Participants
Primary

Total Number of AEs and SAEs After IV Infusion

Number of treatment emergent adverse events (TEAEs) and serious adverse events (SAEs) in all subjects reporting TEAEs/SAEs up to 84 days post-dosing.

Time frame: Day 1 through Day 85

Population: Safety population includes all subjects who received any amount of study treatment.

ArmMeasureGroupValue (NUMBER)
COVID-HIGIV Dose Level 1 (100 mg/kg)Total Number of AEs and SAEs After IV InfusionTotal number of adverse events (AEs) for all subjects reporting TEAEs5 Events
COVID-HIGIV Dose Level 1 (100 mg/kg)Total Number of AEs and SAEs After IV InfusionTotal number of SAEs for all subjects reporting SAEs0 Events
COVID-HIGIV Dose Level 2 (200 mg/kg)Total Number of AEs and SAEs After IV InfusionTotal number of SAEs for all subjects reporting SAEs0 Events
COVID-HIGIV Dose Level 2 (200 mg/kg)Total Number of AEs and SAEs After IV InfusionTotal number of adverse events (AEs) for all subjects reporting TEAEs18 Events
COVID-HIGIV Dose Level 3 (400 mg/kg)Total Number of AEs and SAEs After IV InfusionTotal number of SAEs for all subjects reporting SAEs0 Events
COVID-HIGIV Dose Level 3 (400 mg/kg)Total Number of AEs and SAEs After IV InfusionTotal number of adverse events (AEs) for all subjects reporting TEAEs19 Events
Dose Placebo (Saline)Total Number of AEs and SAEs After IV InfusionTotal number of adverse events (AEs) for all subjects reporting TEAEs8 Events
Dose Placebo (Saline)Total Number of AEs and SAEs After IV InfusionTotal number of SAEs for all subjects reporting SAEs1 Events
Secondary

Body-weight Normalized Pharmacokinetics Parameter of Area Under the Concentration-time (AUC) From Time 0 to the Last Quantifiable Concentration of SARS-CoV-2 Antibodies Plus the Additional Area Extrapolated to Infinity (AUC0-inf) After Dose of COVID-HIGIV

The body-weight normalized area under the concentration-time curve from time 0 to the last quantifiable concentration plus the additional area extrapolated to infinity of SARS-CoV-2 binding IgG antibodies after COVID-HIGIV dose. Data for PK calculations was collected: pre-dose within 2 hrs prior to dosing, and post-dose at: 1 hr, 2 hrs, 4 hrs, 8 hrs, 12 hrs, 24 hrs, Day 4, Day 8, Day 15, Day 22, Day 29, Day 43, Day 57 and Day 85.

Time frame: Day 1 through Day 85

Population: The PK population included all subjects who received COVID-HIGIV and had an adequate set of evaluable PK samples (a suitable predose sample and at least one measurable postdose sample).

ArmMeasureValue (GEOMETRIC_MEAN)
COVID-HIGIV Dose Level 1 (100 mg/kg)Body-weight Normalized Pharmacokinetics Parameter of Area Under the Concentration-time (AUC) From Time 0 to the Last Quantifiable Concentration of SARS-CoV-2 Antibodies Plus the Additional Area Extrapolated to Infinity (AUC0-inf) After Dose of COVID-HIGIV52.07 h*AU/mL/kg
COVID-HIGIV Dose Level 2 (200 mg/kg)Body-weight Normalized Pharmacokinetics Parameter of Area Under the Concentration-time (AUC) From Time 0 to the Last Quantifiable Concentration of SARS-CoV-2 Antibodies Plus the Additional Area Extrapolated to Infinity (AUC0-inf) After Dose of COVID-HIGIV105.39 h*AU/mL/kg
COVID-HIGIV Dose Level 3 (400 mg/kg)Body-weight Normalized Pharmacokinetics Parameter of Area Under the Concentration-time (AUC) From Time 0 to the Last Quantifiable Concentration of SARS-CoV-2 Antibodies Plus the Additional Area Extrapolated to Infinity (AUC0-inf) After Dose of COVID-HIGIV179.39 h*AU/mL/kg
Secondary

Body-weight Normalized Pharmacokinetics Parameter of Area Under the Concentration-time Curve (AUC) From Time 0 to 14 Days (AUC0-14d) After Dose of COVID-HIGIV

Body-weight normalized AUC from time 0 to 14 days of SARS-CoV-2 binding IgG antibodies after COVID-HIGIV. Data for PK calculations was collected: pre-dose within 2 hrs prior to dosing, and post-dose at: 1 hr, 2 hrs, 4 hrs, 8 hrs, 12 hrs, 24 hrs, Day 4, Day 8, and Day 15.

Time frame: Day 1 through Day 15

Population: The PK population included all subjects who received COVID-HIGIV and had an adequate set of evaluable PK samples (a suitable predose sample and at least one measurable postdose sample).

ArmMeasureValue (GEOMETRIC_MEAN)
COVID-HIGIV Dose Level 1 (100 mg/kg)Body-weight Normalized Pharmacokinetics Parameter of Area Under the Concentration-time Curve (AUC) From Time 0 to 14 Days (AUC0-14d) After Dose of COVID-HIGIV45.90 h*AU/mL/kg
COVID-HIGIV Dose Level 2 (200 mg/kg)Body-weight Normalized Pharmacokinetics Parameter of Area Under the Concentration-time Curve (AUC) From Time 0 to 14 Days (AUC0-14d) After Dose of COVID-HIGIV87.73 h*AU/mL/kg
COVID-HIGIV Dose Level 3 (400 mg/kg)Body-weight Normalized Pharmacokinetics Parameter of Area Under the Concentration-time Curve (AUC) From Time 0 to 14 Days (AUC0-14d) After Dose of COVID-HIGIV161.44 h*AU/mL/kg
Secondary

Body-weight Normalized Pharmacokinetics Parameter of Area Under the Concentration-time Curve (AUC) From Time 0 to 28 Days (AUC0-28d) After Dose of COVID-HIGIV

AUC from time 0 to 28 days of SARS-CoV-2 binding IgG antibodies after COVID-HIGIV dose. Data for PK calculations was collected: pre-dose within 2 hrs prior to dosing, and post-dose at: 1 hr, 2 hrs, 4 hrs, 8 hrs, 12 hrs, 24 hrs, Day 4, Day 8, Day 15, Day 22, and Day 29.

Time frame: Day 1 through Day 29

Population: The PK population included all subjects who received COVID-HIGIV and had an adequate set of evaluable PK samples (a suitable predose sample and at least one measurable postdose sample).

ArmMeasureValue (GEOMETRIC_MEAN)
COVID-HIGIV Dose Level 1 (100 mg/kg)Body-weight Normalized Pharmacokinetics Parameter of Area Under the Concentration-time Curve (AUC) From Time 0 to 28 Days (AUC0-28d) After Dose of COVID-HIGIV41.83 h*AU/mL/kg
COVID-HIGIV Dose Level 2 (200 mg/kg)Body-weight Normalized Pharmacokinetics Parameter of Area Under the Concentration-time Curve (AUC) From Time 0 to 28 Days (AUC0-28d) After Dose of COVID-HIGIV85.23 h*AU/mL/kg
COVID-HIGIV Dose Level 3 (400 mg/kg)Body-weight Normalized Pharmacokinetics Parameter of Area Under the Concentration-time Curve (AUC) From Time 0 to 28 Days (AUC0-28d) After Dose of COVID-HIGIV161.17 h*AU/mL/kg
Secondary

Body-weight Normalized Pharmacokinetics Parameter of Area Under the Concentration-time Curve (AUC) From Time 0 to the Last Quantifiable Concentration (AUC0-last) of SARS-CoV-2 Antibodies After Dose of COVID-HIGIV

The body-weight normalized area under the concentration-time curve from time 0 to the last quantifiable concentration of SARS-CoV-2 binding IgG antibodies after COVID-HIGIV dose. Data for PK calculations was collected: pre-dose within 2 hrs prior to dosing, and post-dose at: 1 hr, 2 hrs, 4 hrs, 8 hrs, 12 hrs, 24 hrs, Day 4, Day 8, Day 15, Day 22, Day 29, Day 43, Day 57 and Day 85.

Time frame: Day 1 through Day 85

Population: The PK population included all subjects who received COVID-HIGIV and had an adequate set of evaluable PK samples (a suitable predose sample and at least one measurable postdose sample).

ArmMeasureValue (GEOMETRIC_MEAN)
COVID-HIGIV Dose Level 1 (100 mg/kg)Body-weight Normalized Pharmacokinetics Parameter of Area Under the Concentration-time Curve (AUC) From Time 0 to the Last Quantifiable Concentration (AUC0-last) of SARS-CoV-2 Antibodies After Dose of COVID-HIGIV41.83 h*AU/mL/kg
COVID-HIGIV Dose Level 2 (200 mg/kg)Body-weight Normalized Pharmacokinetics Parameter of Area Under the Concentration-time Curve (AUC) From Time 0 to the Last Quantifiable Concentration (AUC0-last) of SARS-CoV-2 Antibodies After Dose of COVID-HIGIV85.23 h*AU/mL/kg
COVID-HIGIV Dose Level 3 (400 mg/kg)Body-weight Normalized Pharmacokinetics Parameter of Area Under the Concentration-time Curve (AUC) From Time 0 to the Last Quantifiable Concentration (AUC0-last) of SARS-CoV-2 Antibodies After Dose of COVID-HIGIV161.44 h*AU/mL/kg
Secondary

Body-weight Normalized Pharmacokinetics Parameter of Maximum Observed Concentration of SARS-CoV-2 Antibodies Observed After Dose of COVID-HIGIV

The body-weight normalized Cmax (CmaxBWN) of SARS-CoV-2 binding antibodies observed after COVID-HIGIV dose. Data for PK calculations was collected: pre-dose within 2 hrs prior to dosing, and post-dose at: 1 hr, 2 hrs, 4 hrs, 8 hrs, 12 hrs, 24 hrs, Day 4, Day 8, Day 15, Day 22, Day 29, Day 43, Day 57 and Day 85.

Time frame: Day 1 through Day 85

Population: The PK population included all subjects who received COVID-HIGIV and had an adequate set of evaluable PK samples (a suitable predose sample and at least one measurable postdose sample).

ArmMeasureValue (GEOMETRIC_MEAN)
COVID-HIGIV Dose Level 1 (100 mg/kg)Body-weight Normalized Pharmacokinetics Parameter of Maximum Observed Concentration of SARS-CoV-2 Antibodies Observed After Dose of COVID-HIGIV0.11 AU/mL/kg
COVID-HIGIV Dose Level 2 (200 mg/kg)Body-weight Normalized Pharmacokinetics Parameter of Maximum Observed Concentration of SARS-CoV-2 Antibodies Observed After Dose of COVID-HIGIV0.22 AU/mL/kg
COVID-HIGIV Dose Level 3 (400 mg/kg)Body-weight Normalized Pharmacokinetics Parameter of Maximum Observed Concentration of SARS-CoV-2 Antibodies Observed After Dose of COVID-HIGIV0.45 AU/mL/kg
Secondary

Body-weight Normalized Pharmacokinetics Parameter of Trough Concentration of SARS-CoV-2 Antibodies Observed 28 Days After Dose (Cmin28d) of COVID-HIGIV

The body-weight normalized observed trough concentration of SARS-CoV-2 binding IgG antibodies 28 days after COVID-HIGIV dose. Data for PK calculations was collected: pre-dose within 2 hrs prior to dosing, and post-dose at: 1 hr, 2 hrs, 4 hrs, 8 hrs, 12 hrs, 24 hrs, Day 4, Day 8, Day 15, Day 22, and Day 29.

Time frame: Day 1 through Day 29

Population: The PK population included all subjects who received COVID-HIGIV and had an adequate set of evaluable PK samples (a suitable predose sample and at least one measurable postdose sample).

ArmMeasureValue (GEOMETRIC_MEAN)
COVID-HIGIV Dose Level 1 (100 mg/kg)Body-weight Normalized Pharmacokinetics Parameter of Trough Concentration of SARS-CoV-2 Antibodies Observed 28 Days After Dose (Cmin28d) of COVID-HIGIV0.0291 AU/mL/kg
COVID-HIGIV Dose Level 2 (200 mg/kg)Body-weight Normalized Pharmacokinetics Parameter of Trough Concentration of SARS-CoV-2 Antibodies Observed 28 Days After Dose (Cmin28d) of COVID-HIGIV0.0425 AU/mL/kg
COVID-HIGIV Dose Level 3 (400 mg/kg)Body-weight Normalized Pharmacokinetics Parameter of Trough Concentration of SARS-CoV-2 Antibodies Observed 28 Days After Dose (Cmin28d) of COVID-HIGIV0.0780 AU/mL/kg

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