Skip to content

Evaluating the Safety and Pharmacokinetics of VRC01, VRC01LS, and VRC07-523LS, Potent Anti-HIV Neutralizing Monoclonal Antibodies, in HIV-1-Exposed Infants

Open-Label, Dose-Escalating, Phase I Study to Determine Safety and Pharmacokinetic Parameters of Subcutaneous (SC) VRC01, VRC01LS, and VRC07-523LS, Potent Anti-HIV Neutralizing Monoclonal Antibodies, in HIV-1-Exposed Infants

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02256631
Enrollment
83
Registered
2014-10-03
Start date
2015-06-30
Completion date
2021-12-16
Last updated
2023-02-08

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

Conditions

HIV Infections

Brief summary

The purpose of this study was to assess the safety and pharmacokinetics (PK) of three monoclonal antibodies, VRC01, VRC01LS, and VRC07-523LS, in HIV-exposed infants who are at increased risk of mother-to-child HIV transmission.

Detailed description

VRC01, VRC01LS, and VRC07-523LS are anti-HIV neutralizing monoclonal antibodies that may help prevent mother-to-child transmission of HIV. This study enrolled HIV-infected mothers who were at increased risk of passing HIV on to their children. The purpose of this study was to assess the safety and PK of VRC01, VRC01LS, and VRC07-523LS in HIV-exposed infants. This study enrolled mother-infant pairs into five dose groups. Infants enrolled in Dose Group 1 and Dose Group 2 received a single VRC01 injection less than 72 hours after birth. Infants in Dose Group 3 received a VRC01 injection less than 5 days after birth, followed by VRC01 injections monthly for at least 6 months and no more than 18 months, while breastfeeding. Dose Groups 4 and 5 each enrolled infants into two cohorts: Cohort 1 (non-breastfeeding) or Cohort 2 (breastfeeding). Infants in Dose Group 4, Cohort 1 received a single VRC01LS injection less than 72 hours after birth. Infants in Dose Group 4, Cohort 2 received an initial VRC01LS injection no longer than 5 days after birth, and a second VRC01LS injection at Week 12 if they were still breastfeeding. Infants in Dose Group 5, Cohort 1 received a single VRC07-523LS injection less than 72 hours after birth. Infants in Dose Group 5, Cohort 2 received an initial VRC07-523LS injection no longer than 5 days after birth, and a second VRC07-523LS injection at Week 12 if they were still breastfeeding. The mothers did not receive any VRC01, VRC01LS, or VRC07-523LS injections. At study entry, all mothers underwent a medical history review and a blood collection, and then the study ended for the mothers. Infants in Dose Groups 1 and 2 attended study visits at days 0, 1, 3, 7, 14, 28 and at weeks 8, 16, 24, and 48. Infants in Dose Group 3 attended study visits at days 0, 1, 14, 28 and at weeks 8, 12, 16, 20, 24, and every 4 weeks until cessation of breastfeeding or week 72, then at weeks 84 and 96. Infants in Dose Group 4 attended study visits at days 0, 1, 14, 28 and at weeks 8, 12, 24, 36, 48, 60, 72, 84 and 96, with additional visits at weeks 14 and 16 for Cohort 2 participants. Infants in Dose Group 5 attended study visits at days 0, 1, 3, 7, 14, 28 and at weeks 8, 12, 24, 36, 48, 60, 72, 84 and 96, with additional visits at weeks 14 and 16 for Cohort 2 participants. Visits included a medical history review, physical examination, blood collection, and oral fluid collection.

Interventions

BIOLOGICALVRC01

Administered by subcutaneous injection in the thigh

BIOLOGICALVRC01LS

Administered by subcutaneous injection in the thigh

BIOLOGICALVRC07-523LS

Administered by subcutaneous injection in the thigh

Sponsors

National Institute of Allergy and Infectious Diseases (NIAID)
Lead SponsorNIH

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
0 Days to 5 Days
Healthy volunteers
No

Inclusion criteria

Maternal Inclusion Criteria: * HIV infection * Greater than or equal to 18 years of age * Able and willing to provide signed informed consent for herself and her infant Maternal

Exclusion criteria

* Prior participation in any HIV-1 vaccine trial * Receipt of any other active or passive HIV immunotherapy or investigational product during this pregnancy. (Note that administration of Food and Drug Administration \[FDA\]-approved antiretroviral (ARV) drugs when used to treat disease or prevent mother-to-child transmission were not considered investigational.) * Documented or suspected serious medical illness or immediate life-threatening condition (other than HIV infection) in the mother that may have interfered with the ability to complete study requirements, as judged by the examining clinician Infant Inclusion Criteria: * Born to an HIV-1-infected woman who met all maternal inclusion/

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Participants Who DiedFrom day 0 to 4 weeks after last immunization (at week 4 for Dose Groups 1, 2, 4-Cohort 1, 5-Cohort 1; at week 16-48 for Dose Group 3; at week 16 for Dose Group 4-Cohort 2, 5-Cohort 2.)The Overall Number of Participants Analyzed represents infants. Two-sided 90% exact Clopper-Pearson confidence intervals (CI) were calculated. Deaths from day 0 to 4 weeks after the participants' last immunization were included.
Percentage of Participants With an Occurrence of at Least One Grade 3 or Higher Adverse Event (AE)From day 0 to 4 weeks after last immunization (at week 4 for Dose Groups 1, 2, 4-Cohort 1, 5-Cohort 1; at week 16-48 for Dose Group 3; at week 16 for Dose Group 4-Cohort 2, 5-Cohort 2.)The Overall Number of Participants Analyzed represents infants. AE severity grading was based on the Division of AIDS (DAIDS) AE Grading table, Corrected Version 2.1. Two-sided 90% exact Clopper-Pearson confidence intervals (CI) were calculated. Adverse events from day 0 to 4 weeks after the participants' last immunization were included.
Percentage of Participants With at Least One VRC01-, VRC01LS-, or VRC07-523LS-related Grade 3 or Higher Adverse Event (AE)From day 0 to 4 weeks after last immunization (at week 4 for Dose Groups 1, 2, 4-Cohort 1, 5-Cohort 1; at week 16-48 for Dose Group 3; at week 16 for Dose Group 4-Cohort 2, 5-Cohort 2.)The Overall Number of Participants Analyzed represents infants. AE severity grading was based on the Division of AIDS (DAIDS) AE Grading table, Corrected Version 2.1. The study sites assessed and determined if AEs were related to study treatment. Two-sided 90% exact Clopper-Pearson confidence intervals (CI) were calculated. Adverse events from day 0 to 4 weeks after the participants' last immunization were included.
Percentage of Participants Diagnosed With HIV InfectionFrom day 0 to 4 weeks after last immunization (at week 4 for Dose Groups 1, 2, 4-Cohort 1, 5-Cohort 1; at week 16-48 for Dose Group 3; at week 16 for Dose Group 4-Cohort 2, 5-Cohort 2.)The Overall Number of Participants Analyzed represents infants. Diagnosis testing was performed using a HIV-1 NAT (nucleic acid testing) by a method that detects DNA. Two-sided 90% exact Clopper-Pearson confidence intervals (CI) were calculated. HIV diagnoses from day 0 to 4 weeks after the participants' last immunization were included.
Pharmacokinetics (PK) Parameter: Area Under the Curve (AUC) for Dose Groups 1, 2, 3 and 4Dose Groups (DG) 1, 2: at days 0, 1, 3, 7, 14, 28; DG 3: at days 0, 1, 14, 28, weeks 16, 20, 24; DG 4-Cohort 1: at days 0, 1, 14, 28; Cohort 2: at days 0, 1, 14, 28, 84.The Overall Number of Participants Analyzed represents infants. PK parameters were determined from plasma concentration-time profiles using noncompartmental methods (SAS 9.4, Cary, NC). AUC0-28 days (area-under-the-curve from 0 to 28 days) for Dose Groups 1, 2 and 3 and AUC0-84 days for Dose Group 4, were determined using the linear trapezoidal rule. Median and range were summarized.
Pharmacokinetics (PK) Parameter: Area Under the Curve (AUC) for Dose Group 5Dose Group 5 - Cohort 1: at days 0, 1, 3, 7, 14, 28; Cohort 2: at days 0, 1, 3, 7, 14, 28, 84.The Overall Number of Participants Analyzed represents infants. PK parameters were determined from plasma concentration-time profiles using noncompartmental methods (SAS 9.4, Cary, NC). AUC0-84 days (area-under-the-curve from 0 to 84 days) were determined using the linear trapezoidal rule. Median and range were summarized.
Pharmacokinetics (PK) Parameter: Concentration for Dose Groups 1, 2, 3 and 4Dose Groups (DG) 1, 2: at days 0, 1, 3, 7, 14, 28; DG 3: at days 0, 1, 14, 28, weeks 16, 20, 24; DG 4-Cohort 1: at days 0, 1, 14, 28; Cohort 2: at days 0, 1, 14, 28, 84.The Overall Number of Participants Analyzed represents infants. PK parameters were determined from plasma concentration-time profiles using noncompartmental methods (SAS 9.4, Cary, NC). Median and range were summarized for C28 days (concentration at 28 days) for Dose Groups 1, 2 and 3 and C84 days for Dose Group 4.
Pharmacokinetics (PK) Parameter: Concentration for Dose Group 5Dose Group 5 - Cohort 1: at days 0, 1, 3, 7, 14, 28; Cohort 2: at days 0, 1, 3, 7, 14, 28, 84.The Overall Number of Participants Analyzed represents infants. PK parameters were determined from plasma concentration-time profiles using noncompartmental methods (SAS 9.4, Cary, NC). Median and range were summarized for C84 days (concentration at 84 days).

Secondary

MeasureTime frameDescription
Percentage of Participants Who Died After Last Immunization for Dose Groups 1, 2, 3 and 4From four weeks after the participants' last immunization to the end of the study follow-up (at week 48 for Dose Groups 1 and 2 and at week 96 for Dose Group 3 and 4).The Overall Number of Participants Analyzed represents infants. Two-sided 90% exact Clopper-Pearson confidence intervals (CI) were calculated. Data for Dose Groups 1, 2, 3 and 4 are presented here.
Number of Participants Who Developed Anti-VRC AntibodiesAt weeks 24 and 48.The Overall Number of Participants Analyzed represents infants with samples collected and tested. The number of infants who developed anti antibodies to the study products are summarized. For Dose Groups 1, 2, and 3, these are anti-VRC01 antibodies. For Dose Group 4, these are anti-VCR07 antibodies and for Dose Group 5, these are anti-VRC07-523LS antibodies.
Percentage of Participants Who Died After Last Immunization for Dose Group 5From four weeks after the participants' last immunization to the end of the study follow-up (at week 96 for Dose Group 5).The Overall Number of Participants Analyzed represents infants. Two-sided 90% exact Clopper-Pearson confidence intervals (CI) were calculated.
Percentage of Participants With an Occurrence of at Least One Grade 3 or Higher Adverse Event (AE) After Last Immunization for Dose Groups 1, 2, 3 and 4From four weeks after the participants' last immunization to the end of the study follow-up (at week 48 for Dose Groups 1 and 2 and at week 96 for Dose Groups 3 and 4).The Overall Number of Participants Analyzed represents infants. AE severity grading was based on the Division of AIDS (DAIDS) AE Grading table, Corrected Version 2.1. Two-sided 90% exact Clopper-Pearson confidence intervals (CI) were calculated. Data for Dose Groups 1, 2, 3 and 4 are presented here.
Percentage of Participants With an Occurrence of at Least One Grade 3 or Higher Adverse Event (AE) After Last Immunization For Dose Group 5From four weeks after the participants' last immunization to the end of the study follow-up (at week 96 for Dose Group 5).The Overall Number of Participants Analyzed represents infants. AE severity grading was based on the Division of AIDS (DAIDS) AE Grading table, Corrected Version 2.1. Two-sided 90% exact Clopper-Pearson confidence intervals (CI) were calculated.
Percentage of Participants With at Least One VRC01-, VRC01LS-, or VRC07-523LS-related Grade 3 or Higher Adverse Event (AE) After Last Immunization For Dose Groups 1, 2, 3, and 4From four weeks after the participants' last immunization to the end of the study follow-up (at week 48 for Dose Groups 1 and 2 and at week 96 for Dose Groups 3 and 4).The Overall Number of Participants Analyzed represents infants. AE severity grading was based on the Division of AIDS (DAIDS) AE Grading table, Corrected Version 2.1. The study sites assessed if AEs were related to study treatment. Two-sided 90% exact Clopper-Pearson confidence intervals (CI) were calculated. Data for Dose Groups 1, 2, 3 and 4 are presented here.
Percentage of Participants With at Least One VRC01-, VRC01LS-, or VRC07-523LS-related Grade 3 or Higher Adverse Event (AE) After Last Immunization for Dose Group 5From four weeks after the participants' last immunization to the end of the study follow-up (at week 96 for Dose Group 5).The Overall Number of Participants Analyzed represents infants. AE severity grading was based on the Division of AIDS (DAIDS) AE Grading table, Corrected Version 2.1. The study sites assessed if AEs were related to study treatment. Two-sided 90% exact Clopper-Pearson confidence intervals (CI) were calculated.
Percentage of Participants Diagnosed With HIV Infection After Last Immunization for Dose Groups 1, 2, 3, and 4From four weeks after the participants' last immunization to the end of the study follow-up (at week 48 for Dose Groups 1 and 2 and at week 96 for Dose Groups 3 and 4).The Overall Number of Participants Analyzed represents infants. Diagnosis testing was performed using a HIV-1 NAT (nucleic acid testing) by a method that detects DNA. Two-sided 90% exact Clopper-Pearson confidence intervals (CI) were calculated. Data for Dose Groups 1, 2, 3 and 4 are presented here.
Percentage of Participants Diagnosed With HIV Infection After Last Immunization for Dose Group 5From four weeks after the participants' last immunization to the end of the study follow-up (at week 96 for Dose Group 5).The Overall Number of Participants Analyzed represents infants. Diagnosis testing was performed using a HIV-1 NAT (nucleic acid testing) by a method that detects DNA. Two-sided 90% exact Clopper-Pearson confidence intervals (CI) were calculated.

Countries

Puerto Rico, South Africa, United States, Zimbabwe

Participant flow

Recruitment details

83 mother-infant pairs were enrolled in the study. Since the mothers did not receive any treatment on study and were taken off study immediately after enrollment, the number of participants shown in all tables is the number of infants (83). Participants were enrolled from June 2015 to February 2020, at 14 medical clinics in the United States, Puerto Rico, South Africa and Zimbabwe.

Pre-assignment details

Dose groups enrolled sequentially. There was no randomization.

Participants by arm

ArmCount
Dose Group 1
Infants in Dose Group 1 received a single VRC01 20 mg/kg injection less than 72 hours after birth. VRC01: Administered by subcutaneous injection in the thigh
13
Dose Group 2
Infants in Dose Group 2 received a single VRC01 40 mg/kg injection less than 72 hours after birth. VRC01: Administered by subcutaneous injection in the thigh
14
Dose Group 3
Infants in Dose Group 3 received a VRC01 40 mg/kg injection less than 5 days after birth. They then received a VRC01 20 mg/kg injection monthly for at least 6 months and no more than 18 months while breastfeeding. VRC01: Administered by subcutaneous injection in the thigh
13
Dose Group 4, Cohort 1
Infants in Cohort 1 received a single VRC01LS injection less than 72 hours after birth. Dose was based on weight: 80 mg for infants weighing less than 4.5 kg and 100 mg for infants weighing 4.5 kg or greater. VRC01LS: Administered by subcutaneous injection in the thigh
10
Dose Group 4, Cohort 2
Infants in Cohort 2 received an initial VRC01LS injection no longer than 5 days after birth. Dose was based on weight: 80 mg for infants weighing less than 4.5 kg and 100 mg for infants weighing 4.5 kg or greater. A second dose of 100 mg VRC01LS was administered at Week 12 if an infant was still breastfeeding. VRC01LS: Administered by subcutaneous injection in the thigh
11
Dose Group 5, Cohort 1
Infants in Cohort 1 received a single VRC07-523LS injection less than 72 hours after birth. Dose was based on weight: 80 mg for infants weighing less than 4.5 kg and 100 mg for infants weighing 4.5 kg or greater. VRC07-523LS: Administered by subcutaneous injection in the thigh
11
Dose Group 5, Cohort 2
Infants in Cohort 2 received an initial VRC07-523LS injection no longer than 5 days after birth. Dose was based on weight: 80 mg for infants weighing less than 4.5 kg and 100 mg for infants weighing 4.5 kg or greater. A second dose of 100 mg VRC07-523LS was administered at Week 12 if an infant was still breastfeeding. VRC07-523LS: Administered by subcutaneous injection in the thigh
11
Total83

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005FG006
Overall StudyLost to Follow-up1102041
Overall StudyUnable to get to clinic0201012
Overall StudyWithdrawal by Subject0001101

Baseline characteristics

CharacteristicDose Group 1Dose Group 2Dose Group 3Dose Group 4, Cohort 1Dose Group 4, Cohort 2Dose Group 5, Cohort 1Dose Group 5, Cohort 2Total
Age, Customized
Age at first dose
2 days2 days2 days2 days2 days1 days4 days2 days
Birth Weight3045 grams3160 grams2860 grams2865 grams2920 grams2810 grams3235 grams2920 grams
Ethnicity (NIH/OMB)
Hispanic or Latino
5 Participants4 Participants0 Participants1 Participants0 Participants2 Participants0 Participants12 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
8 Participants10 Participants13 Participants9 Participants11 Participants8 Participants11 Participants70 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants0 Participants1 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
6 Participants11 Participants13 Participants8 Participants11 Participants8 Participants11 Participants68 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants0 Participants1 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants1 Participants0 Participants0 Participants0 Participants1 Participants0 Participants3 Participants
Race (NIH/OMB)
White
6 Participants2 Participants0 Participants2 Participants0 Participants1 Participants0 Participants11 Participants
Region of Enrollment
Puerto Rico
2 participants0 participants0 participants0 participants0 participants0 participants0 participants2 participants
Region of Enrollment
South Africa
1 participants5 participants10 participants3 participants5 participants0 participants7 participants31 participants
Region of Enrollment
United States
10 participants9 participants0 participants7 participants0 participants11 participants0 participants37 participants
Region of Enrollment
Zimbabwe
0 participants0 participants3 participants0 participants6 participants0 participants4 participants13 participants
Sex: Female, Male
Female
5 Participants8 Participants5 Participants4 Participants6 Participants6 Participants3 Participants37 Participants
Sex: Female, Male
Male
8 Participants6 Participants8 Participants6 Participants5 Participants5 Participants8 Participants46 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
deaths
Total, all-cause mortality
0 / 130 / 140 / 130 / 100 / 110 / 110 / 11
other
Total, other adverse events
13 / 1313 / 1413 / 139 / 1011 / 1111 / 1110 / 11
serious
Total, serious adverse events
4 / 131 / 140 / 132 / 100 / 116 / 111 / 11

Outcome results

Primary

Percentage of Participants Diagnosed With HIV Infection

The Overall Number of Participants Analyzed represents infants. Diagnosis testing was performed using a HIV-1 NAT (nucleic acid testing) by a method that detects DNA. Two-sided 90% exact Clopper-Pearson confidence intervals (CI) were calculated. HIV diagnoses from day 0 to 4 weeks after the participants' last immunization were included.

Time frame: From day 0 to 4 weeks after last immunization (at week 4 for Dose Groups 1, 2, 4-Cohort 1, 5-Cohort 1; at week 16-48 for Dose Group 3; at week 16 for Dose Group 4-Cohort 2, 5-Cohort 2.)

Population: All infant study participants.

ArmMeasureValue (NUMBER)
Dose Group 1Percentage of Participants Diagnosed With HIV Infection0 percentage of participants
Dose Group 2Percentage of Participants Diagnosed With HIV Infection0 percentage of participants
Dose Group 3Percentage of Participants Diagnosed With HIV Infection0 percentage of participants
Dose Group 4, Cohort 1Percentage of Participants Diagnosed With HIV Infection0 percentage of participants
Dose Group 4, Cohort 2Percentage of Participants Diagnosed With HIV Infection0 percentage of participants
Dose Group 5, Cohort 1Percentage of Participants Diagnosed With HIV Infection0 percentage of participants
Dose Group 5, Cohort 2Percentage of Participants Diagnosed With HIV Infection0 percentage of participants
Primary

Percentage of Participants Who Died

The Overall Number of Participants Analyzed represents infants. Two-sided 90% exact Clopper-Pearson confidence intervals (CI) were calculated. Deaths from day 0 to 4 weeks after the participants' last immunization were included.

Time frame: From day 0 to 4 weeks after last immunization (at week 4 for Dose Groups 1, 2, 4-Cohort 1, 5-Cohort 1; at week 16-48 for Dose Group 3; at week 16 for Dose Group 4-Cohort 2, 5-Cohort 2.)

Population: All infant study participants.

ArmMeasureValue (NUMBER)
Dose Group 1Percentage of Participants Who Died0 percentage of participants
Dose Group 2Percentage of Participants Who Died0 percentage of participants
Dose Group 3Percentage of Participants Who Died0 percentage of participants
Dose Group 4, Cohort 1Percentage of Participants Who Died0 percentage of participants
Dose Group 4, Cohort 2Percentage of Participants Who Died0 percentage of participants
Dose Group 5, Cohort 1Percentage of Participants Who Died0 percentage of participants
Dose Group 5, Cohort 2Percentage of Participants Who Died0 percentage of participants
Primary

Percentage of Participants With an Occurrence of at Least One Grade 3 or Higher Adverse Event (AE)

The Overall Number of Participants Analyzed represents infants. AE severity grading was based on the Division of AIDS (DAIDS) AE Grading table, Corrected Version 2.1. Two-sided 90% exact Clopper-Pearson confidence intervals (CI) were calculated. Adverse events from day 0 to 4 weeks after the participants' last immunization were included.

Time frame: From day 0 to 4 weeks after last immunization (at week 4 for Dose Groups 1, 2, 4-Cohort 1, 5-Cohort 1; at week 16-48 for Dose Group 3; at week 16 for Dose Group 4-Cohort 2, 5-Cohort 2.)

Population: All infant study participants.

ArmMeasureValue (NUMBER)
Dose Group 1Percentage of Participants With an Occurrence of at Least One Grade 3 or Higher Adverse Event (AE)31 percentage of participants
Dose Group 2Percentage of Participants With an Occurrence of at Least One Grade 3 or Higher Adverse Event (AE)14 percentage of participants
Dose Group 3Percentage of Participants With an Occurrence of at Least One Grade 3 or Higher Adverse Event (AE)31 percentage of participants
Dose Group 4, Cohort 1Percentage of Participants With an Occurrence of at Least One Grade 3 or Higher Adverse Event (AE)10 percentage of participants
Dose Group 4, Cohort 2Percentage of Participants With an Occurrence of at Least One Grade 3 or Higher Adverse Event (AE)27 percentage of participants
Dose Group 5, Cohort 1Percentage of Participants With an Occurrence of at Least One Grade 3 or Higher Adverse Event (AE)36 percentage of participants
Dose Group 5, Cohort 2Percentage of Participants With an Occurrence of at Least One Grade 3 or Higher Adverse Event (AE)9 percentage of participants
Primary

Percentage of Participants With at Least One VRC01-, VRC01LS-, or VRC07-523LS-related Grade 3 or Higher Adverse Event (AE)

The Overall Number of Participants Analyzed represents infants. AE severity grading was based on the Division of AIDS (DAIDS) AE Grading table, Corrected Version 2.1. The study sites assessed and determined if AEs were related to study treatment. Two-sided 90% exact Clopper-Pearson confidence intervals (CI) were calculated. Adverse events from day 0 to 4 weeks after the participants' last immunization were included.

Time frame: From day 0 to 4 weeks after last immunization (at week 4 for Dose Groups 1, 2, 4-Cohort 1, 5-Cohort 1; at week 16-48 for Dose Group 3; at week 16 for Dose Group 4-Cohort 2, 5-Cohort 2.)

Population: All infant study participants.

ArmMeasureValue (NUMBER)
Dose Group 1Percentage of Participants With at Least One VRC01-, VRC01LS-, or VRC07-523LS-related Grade 3 or Higher Adverse Event (AE)0 percentage of participants
Dose Group 2Percentage of Participants With at Least One VRC01-, VRC01LS-, or VRC07-523LS-related Grade 3 or Higher Adverse Event (AE)0 percentage of participants
Dose Group 3Percentage of Participants With at Least One VRC01-, VRC01LS-, or VRC07-523LS-related Grade 3 or Higher Adverse Event (AE)0 percentage of participants
Dose Group 4, Cohort 1Percentage of Participants With at Least One VRC01-, VRC01LS-, or VRC07-523LS-related Grade 3 or Higher Adverse Event (AE)0 percentage of participants
Dose Group 4, Cohort 2Percentage of Participants With at Least One VRC01-, VRC01LS-, or VRC07-523LS-related Grade 3 or Higher Adverse Event (AE)0 percentage of participants
Dose Group 5, Cohort 1Percentage of Participants With at Least One VRC01-, VRC01LS-, or VRC07-523LS-related Grade 3 or Higher Adverse Event (AE)0 percentage of participants
Dose Group 5, Cohort 2Percentage of Participants With at Least One VRC01-, VRC01LS-, or VRC07-523LS-related Grade 3 or Higher Adverse Event (AE)0 percentage of participants
Primary

Pharmacokinetics (PK) Parameter: Area Under the Curve (AUC) for Dose Group 5

The Overall Number of Participants Analyzed represents infants. PK parameters were determined from plasma concentration-time profiles using noncompartmental methods (SAS 9.4, Cary, NC). AUC0-84 days (area-under-the-curve from 0 to 84 days) were determined using the linear trapezoidal rule. Median and range were summarized.

Time frame: Dose Group 5 - Cohort 1: at days 0, 1, 3, 7, 14, 28; Cohort 2: at days 0, 1, 3, 7, 14, 28, 84.

Population: Participants who received the correct dose and were evaluated for PK at the designated timepoints.

ArmMeasureValue (MEDIAN)
Dose Group 1Pharmacokinetics (PK) Parameter: Area Under the Curve (AUC) for Dose Group 55358 mcg*d/mL
Dose Group 2Pharmacokinetics (PK) Parameter: Area Under the Curve (AUC) for Dose Group 54462 mcg*d/mL
Primary

Pharmacokinetics (PK) Parameter: Area Under the Curve (AUC) for Dose Groups 1, 2, 3 and 4

The Overall Number of Participants Analyzed represents infants. PK parameters were determined from plasma concentration-time profiles using noncompartmental methods (SAS 9.4, Cary, NC). AUC0-28 days (area-under-the-curve from 0 to 28 days) for Dose Groups 1, 2 and 3 and AUC0-84 days for Dose Group 4, were determined using the linear trapezoidal rule. Median and range were summarized.

Time frame: Dose Groups (DG) 1, 2: at days 0, 1, 3, 7, 14, 28; DG 3: at days 0, 1, 14, 28, weeks 16, 20, 24; DG 4-Cohort 1: at days 0, 1, 14, 28; Cohort 2: at days 0, 1, 14, 28, 84.

Population: Infants who received the correct dose and were evaluated for PK at the designated timepoints.

ArmMeasureValue (MEDIAN)
Dose Group 1Pharmacokinetics (PK) Parameter: Area Under the Curve (AUC) for Dose Groups 1, 2, 3 and 42672 mcg*d/mL
Dose Group 2Pharmacokinetics (PK) Parameter: Area Under the Curve (AUC) for Dose Groups 1, 2, 3 and 44435 mcg*d/mL
Dose Group 3Pharmacokinetics (PK) Parameter: Area Under the Curve (AUC) for Dose Groups 1, 2, 3 and 46654 mcg*d/mL
Dose Group 4, Cohort 1Pharmacokinetics (PK) Parameter: Area Under the Curve (AUC) for Dose Groups 1, 2, 3 and 49825 mcg*d/mL
Dose Group 4, Cohort 2Pharmacokinetics (PK) Parameter: Area Under the Curve (AUC) for Dose Groups 1, 2, 3 and 48639 mcg*d/mL
Primary

Pharmacokinetics (PK) Parameter: Concentration for Dose Group 5

The Overall Number of Participants Analyzed represents infants. PK parameters were determined from plasma concentration-time profiles using noncompartmental methods (SAS 9.4, Cary, NC). Median and range were summarized for C84 days (concentration at 84 days).

Time frame: Dose Group 5 - Cohort 1: at days 0, 1, 3, 7, 14, 28; Cohort 2: at days 0, 1, 3, 7, 14, 28, 84.

Population: Participants who received the correct dose and were evaluated for PK at the designated timepoints.

ArmMeasureValue (MEDIAN)
Dose Group 1Pharmacokinetics (PK) Parameter: Concentration for Dose Group 515.81 mcg/mL
Dose Group 2Pharmacokinetics (PK) Parameter: Concentration for Dose Group 519.07 mcg/mL
Primary

Pharmacokinetics (PK) Parameter: Concentration for Dose Groups 1, 2, 3 and 4

The Overall Number of Participants Analyzed represents infants. PK parameters were determined from plasma concentration-time profiles using noncompartmental methods (SAS 9.4, Cary, NC). Median and range were summarized for C28 days (concentration at 28 days) for Dose Groups 1, 2 and 3 and C84 days for Dose Group 4.

Time frame: Dose Groups (DG) 1, 2: at days 0, 1, 3, 7, 14, 28; DG 3: at days 0, 1, 14, 28, weeks 16, 20, 24; DG 4-Cohort 1: at days 0, 1, 14, 28; Cohort 2: at days 0, 1, 14, 28, 84.

Population: Infants who received the correct dose and were evaluated for PK at the designated timepoints.

ArmMeasureValue (MEDIAN)
Dose Group 1Pharmacokinetics (PK) Parameter: Concentration for Dose Groups 1, 2, 3 and 439.19 mcg/mL
Dose Group 2Pharmacokinetics (PK) Parameter: Concentration for Dose Groups 1, 2, 3 and 475.25 mcg/mL
Dose Group 3Pharmacokinetics (PK) Parameter: Concentration for Dose Groups 1, 2, 3 and 4124.24 mcg/mL
Dose Group 4, Cohort 1Pharmacokinetics (PK) Parameter: Concentration for Dose Groups 1, 2, 3 and 444.64 mcg/mL
Dose Group 4, Cohort 2Pharmacokinetics (PK) Parameter: Concentration for Dose Groups 1, 2, 3 and 449.60 mcg/mL
Secondary

Number of Participants Who Developed Anti-VRC Antibodies

The Overall Number of Participants Analyzed represents infants with samples collected and tested. The number of infants who developed anti antibodies to the study products are summarized. For Dose Groups 1, 2, and 3, these are anti-VRC01 antibodies. For Dose Group 4, these are anti-VCR07 antibodies and for Dose Group 5, these are anti-VRC07-523LS antibodies.

Time frame: At weeks 24 and 48.

Population: Infant study participants with samples collected and tested.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Dose Group 1Number of Participants Who Developed Anti-VRC Antibodies0 Participants
Dose Group 2Number of Participants Who Developed Anti-VRC Antibodies0 Participants
Dose Group 3Number of Participants Who Developed Anti-VRC Antibodies0 Participants
Dose Group 4, Cohort 1Number of Participants Who Developed Anti-VRC Antibodies0 Participants
Dose Group 4, Cohort 2Number of Participants Who Developed Anti-VRC Antibodies0 Participants
Dose Group 5, Cohort 1Number of Participants Who Developed Anti-VRC Antibodies0 Participants
Dose Group 5, Cohort 2Number of Participants Who Developed Anti-VRC Antibodies0 Participants
Secondary

Percentage of Participants Diagnosed With HIV Infection After Last Immunization for Dose Group 5

The Overall Number of Participants Analyzed represents infants. Diagnosis testing was performed using a HIV-1 NAT (nucleic acid testing) by a method that detects DNA. Two-sided 90% exact Clopper-Pearson confidence intervals (CI) were calculated.

Time frame: From four weeks after the participants' last immunization to the end of the study follow-up (at week 96 for Dose Group 5).

Population: All infants enrolled in these Dose Groups.

ArmMeasureValue (NUMBER)
Dose Group 1Percentage of Participants Diagnosed With HIV Infection After Last Immunization for Dose Group 50 percentage of participants
Dose Group 2Percentage of Participants Diagnosed With HIV Infection After Last Immunization for Dose Group 50 percentage of participants
Secondary

Percentage of Participants Diagnosed With HIV Infection After Last Immunization for Dose Groups 1, 2, 3, and 4

The Overall Number of Participants Analyzed represents infants. Diagnosis testing was performed using a HIV-1 NAT (nucleic acid testing) by a method that detects DNA. Two-sided 90% exact Clopper-Pearson confidence intervals (CI) were calculated. Data for Dose Groups 1, 2, 3 and 4 are presented here.

Time frame: From four weeks after the participants' last immunization to the end of the study follow-up (at week 48 for Dose Groups 1 and 2 and at week 96 for Dose Groups 3 and 4).

Population: All infants enrolled in these Dose Groups.

ArmMeasureValue (NUMBER)
Dose Group 1Percentage of Participants Diagnosed With HIV Infection After Last Immunization for Dose Groups 1, 2, 3, and 40 percentage of participants
Dose Group 2Percentage of Participants Diagnosed With HIV Infection After Last Immunization for Dose Groups 1, 2, 3, and 40 percentage of participants
Dose Group 3Percentage of Participants Diagnosed With HIV Infection After Last Immunization for Dose Groups 1, 2, 3, and 40 percentage of participants
Dose Group 4, Cohort 1Percentage of Participants Diagnosed With HIV Infection After Last Immunization for Dose Groups 1, 2, 3, and 40 percentage of participants
Dose Group 4, Cohort 2Percentage of Participants Diagnosed With HIV Infection After Last Immunization for Dose Groups 1, 2, 3, and 40 percentage of participants
Secondary

Percentage of Participants Who Died After Last Immunization for Dose Group 5

The Overall Number of Participants Analyzed represents infants. Two-sided 90% exact Clopper-Pearson confidence intervals (CI) were calculated.

Time frame: From four weeks after the participants' last immunization to the end of the study follow-up (at week 96 for Dose Group 5).

Population: All infants enrolled in these Dose Groups.

ArmMeasureValue (NUMBER)
Dose Group 1Percentage of Participants Who Died After Last Immunization for Dose Group 50 percentage of participants
Dose Group 2Percentage of Participants Who Died After Last Immunization for Dose Group 50 percentage of participants
Secondary

Percentage of Participants Who Died After Last Immunization for Dose Groups 1, 2, 3 and 4

The Overall Number of Participants Analyzed represents infants. Two-sided 90% exact Clopper-Pearson confidence intervals (CI) were calculated. Data for Dose Groups 1, 2, 3 and 4 are presented here.

Time frame: From four weeks after the participants' last immunization to the end of the study follow-up (at week 48 for Dose Groups 1 and 2 and at week 96 for Dose Group 3 and 4).

Population: All infants enrolled in these Dose Groups.

ArmMeasureValue (NUMBER)
Dose Group 1Percentage of Participants Who Died After Last Immunization for Dose Groups 1, 2, 3 and 40 percentage of participants
Dose Group 2Percentage of Participants Who Died After Last Immunization for Dose Groups 1, 2, 3 and 40 percentage of participants
Dose Group 3Percentage of Participants Who Died After Last Immunization for Dose Groups 1, 2, 3 and 40 percentage of participants
Dose Group 4, Cohort 1Percentage of Participants Who Died After Last Immunization for Dose Groups 1, 2, 3 and 40 percentage of participants
Dose Group 4, Cohort 2Percentage of Participants Who Died After Last Immunization for Dose Groups 1, 2, 3 and 40 percentage of participants
Secondary

Percentage of Participants With an Occurrence of at Least One Grade 3 or Higher Adverse Event (AE) After Last Immunization For Dose Group 5

The Overall Number of Participants Analyzed represents infants. AE severity grading was based on the Division of AIDS (DAIDS) AE Grading table, Corrected Version 2.1. Two-sided 90% exact Clopper-Pearson confidence intervals (CI) were calculated.

Time frame: From four weeks after the participants' last immunization to the end of the study follow-up (at week 96 for Dose Group 5).

Population: All infants enrolled in these Dose Groups.

ArmMeasureValue (NUMBER)
Dose Group 1Percentage of Participants With an Occurrence of at Least One Grade 3 or Higher Adverse Event (AE) After Last Immunization For Dose Group 518 percentage of participants
Dose Group 2Percentage of Participants With an Occurrence of at Least One Grade 3 or Higher Adverse Event (AE) After Last Immunization For Dose Group 527 percentage of participants
Secondary

Percentage of Participants With an Occurrence of at Least One Grade 3 or Higher Adverse Event (AE) After Last Immunization for Dose Groups 1, 2, 3 and 4

The Overall Number of Participants Analyzed represents infants. AE severity grading was based on the Division of AIDS (DAIDS) AE Grading table, Corrected Version 2.1. Two-sided 90% exact Clopper-Pearson confidence intervals (CI) were calculated. Data for Dose Groups 1, 2, 3 and 4 are presented here.

Time frame: From four weeks after the participants' last immunization to the end of the study follow-up (at week 48 for Dose Groups 1 and 2 and at week 96 for Dose Groups 3 and 4).

Population: All infants enrolled in these Dose Groups.

ArmMeasureValue (NUMBER)
Dose Group 1Percentage of Participants With an Occurrence of at Least One Grade 3 or Higher Adverse Event (AE) After Last Immunization for Dose Groups 1, 2, 3 and 423 percentage of participants
Dose Group 2Percentage of Participants With an Occurrence of at Least One Grade 3 or Higher Adverse Event (AE) After Last Immunization for Dose Groups 1, 2, 3 and 40 percentage of participants
Dose Group 3Percentage of Participants With an Occurrence of at Least One Grade 3 or Higher Adverse Event (AE) After Last Immunization for Dose Groups 1, 2, 3 and 40 percentage of participants
Dose Group 4, Cohort 1Percentage of Participants With an Occurrence of at Least One Grade 3 or Higher Adverse Event (AE) After Last Immunization for Dose Groups 1, 2, 3 and 420 percentage of participants
Dose Group 4, Cohort 2Percentage of Participants With an Occurrence of at Least One Grade 3 or Higher Adverse Event (AE) After Last Immunization for Dose Groups 1, 2, 3 and 418 percentage of participants
Secondary

Percentage of Participants With at Least One VRC01-, VRC01LS-, or VRC07-523LS-related Grade 3 or Higher Adverse Event (AE) After Last Immunization for Dose Group 5

The Overall Number of Participants Analyzed represents infants. AE severity grading was based on the Division of AIDS (DAIDS) AE Grading table, Corrected Version 2.1. The study sites assessed if AEs were related to study treatment. Two-sided 90% exact Clopper-Pearson confidence intervals (CI) were calculated.

Time frame: From four weeks after the participants' last immunization to the end of the study follow-up (at week 96 for Dose Group 5).

Population: All infants enrolled in these Dose Groups.

ArmMeasureValue (NUMBER)
Dose Group 1Percentage of Participants With at Least One VRC01-, VRC01LS-, or VRC07-523LS-related Grade 3 or Higher Adverse Event (AE) After Last Immunization for Dose Group 50 percentage of participants
Dose Group 2Percentage of Participants With at Least One VRC01-, VRC01LS-, or VRC07-523LS-related Grade 3 or Higher Adverse Event (AE) After Last Immunization for Dose Group 50 percentage of participants
Secondary

Percentage of Participants With at Least One VRC01-, VRC01LS-, or VRC07-523LS-related Grade 3 or Higher Adverse Event (AE) After Last Immunization For Dose Groups 1, 2, 3, and 4

The Overall Number of Participants Analyzed represents infants. AE severity grading was based on the Division of AIDS (DAIDS) AE Grading table, Corrected Version 2.1. The study sites assessed if AEs were related to study treatment. Two-sided 90% exact Clopper-Pearson confidence intervals (CI) were calculated. Data for Dose Groups 1, 2, 3 and 4 are presented here.

Time frame: From four weeks after the participants' last immunization to the end of the study follow-up (at week 48 for Dose Groups 1 and 2 and at week 96 for Dose Groups 3 and 4).

Population: All infants enrolled in these Dose Groups.

ArmMeasureValue (NUMBER)
Dose Group 1Percentage of Participants With at Least One VRC01-, VRC01LS-, or VRC07-523LS-related Grade 3 or Higher Adverse Event (AE) After Last Immunization For Dose Groups 1, 2, 3, and 40 percentage of participants
Dose Group 2Percentage of Participants With at Least One VRC01-, VRC01LS-, or VRC07-523LS-related Grade 3 or Higher Adverse Event (AE) After Last Immunization For Dose Groups 1, 2, 3, and 40 percentage of participants
Dose Group 3Percentage of Participants With at Least One VRC01-, VRC01LS-, or VRC07-523LS-related Grade 3 or Higher Adverse Event (AE) After Last Immunization For Dose Groups 1, 2, 3, and 40 percentage of participants
Dose Group 4, Cohort 1Percentage of Participants With at Least One VRC01-, VRC01LS-, or VRC07-523LS-related Grade 3 or Higher Adverse Event (AE) After Last Immunization For Dose Groups 1, 2, 3, and 40 percentage of participants
Dose Group 4, Cohort 2Percentage of Participants With at Least One VRC01-, VRC01LS-, or VRC07-523LS-related Grade 3 or Higher Adverse Event (AE) After Last Immunization For Dose Groups 1, 2, 3, and 40 percentage of participants

Source: ClinicalTrials.gov · Data processed: Mar 7, 2026