MedPath

RV630 - Approach to Control HIV With Immune Enhancement and Vaccination (ACHIEV

Phase 1
Not yet recruiting
Conditions
Acute HIV Infection
HIV Infections
PLWH
ART
Interventions
Biological: VRC07-523LS
Biological: PGDM1400LS
Other: Placebo
Biological: ChAdOx1.tHIVconsv1
Biological: ChAdOx1.HIVconsv62
Biological: MVA.tHIVconsv4
Biological: A244d11 gp120
Biological: ALFQ
Registration Number
NCT06484335
Lead Sponsor
Henry M. Jackson Foundation for the Advancement of Military Medicine
Brief Summary

This is a phase I, randomized, double-blind, placebo-controlled clinical trial to investigate the safety of VRC07-523LS and PGDM1400LS in combination with ChAdOx1.tHIVconsv1, ChAdOx1.HIVconsv62 prime, MVA.tHIVconsv4 and A244d11gp120/ALFQ vaccination, and the impact on viral load setpoint during analytic treatment interruption (ATI) in people living with human immunodeficiency virus-1 (HIV-1, PLWH) who have initiated or will initiate antiretroviral therapy (ART) during acute HIV-1 infection (AHI).

Detailed Description

This is a phase I, randomized, double-blinded, placebo-controlled clinical trial to investigate the safety of VRC07-523LS and PGDM1400LS in combination with ChAdOx1.tHIVconsv1, ChAdOx1.tHIVconsv62, MVA.tHIVconsv4 and A244d11 gp120/ALFQ vaccination, and the impact on viral load setpoint during ATI in PLWH who initiated ART during AHI.

To evaluate the primary objectives, the study will enroll up to 40 adults already enrolled in the RV 254/WRAIR #1494 study who initiated ART during Fiebig I-V acute HIV-1 infection, with plasma HIV-1 RNA \< 50 copies/mL for ≥ 48 weeks, CD4 T-cell counts ≥ 400 cells/mm3, viruses susceptible to VRC07-523LS and/or PGDM1400LS, and the absence of known protective HLA allele (Groups 1 and 2).

Participants currently on ART who meet study entry criteria will be randomized (Section 6.2) in a 1:1 allocation to the Active (Group 1) or Comparator (Group 2) Arms prior to entering Step 1.

To evaluate exploratory objectives, the study will also enroll up to 8 adults who are newly enrolled in the RV 254/WRAIR #1494 study, diagnosed during Fiebig I-V AHI, and have not yet initiated ART (Group 3).

Recruitment & Eligibility

Status
NOT_YET_RECRUITING
Sex
All
Target Recruitment
48
Inclusion Criteria

Not provided

Exclusion Criteria

Not provided

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Active ArmALFQFor the primary objectives and endpoints, this study will enroll PLWH aged 18-60 years who initiated ART during Fiebig I-V AHI, are virologically suppressed (HIV-1 RNA \<50 copies/ml for ≥48 weeks) on uninterrupted ART, and who meet study inclusion criteria into Groups 1 and 2. • Active Arm - Group 1 will receive: i. VRC07-523LS and PGDM1400LS at Step 2, Week 0 ii. ART starting at Step 2, Week 1 iii. ChAdOx1.tHIVconsv1 and ChAdOx1.HIVconsv62 vaccination at Step 2, Week 4 iv. MVA.tHIVconsv4 and A244d11 gp120/ALFQ vaccination at Step 2, Weeks 12 and 20
Active ArmPGDM1400LSFor the primary objectives and endpoints, this study will enroll PLWH aged 18-60 years who initiated ART during Fiebig I-V AHI, are virologically suppressed (HIV-1 RNA \<50 copies/ml for ≥48 weeks) on uninterrupted ART, and who meet study inclusion criteria into Groups 1 and 2. • Active Arm - Group 1 will receive: i. VRC07-523LS and PGDM1400LS at Step 2, Week 0 ii. ART starting at Step 2, Week 1 iii. ChAdOx1.tHIVconsv1 and ChAdOx1.HIVconsv62 vaccination at Step 2, Week 4 iv. MVA.tHIVconsv4 and A244d11 gp120/ALFQ vaccination at Step 2, Weeks 12 and 20
Active ArmA244d11 gp120For the primary objectives and endpoints, this study will enroll PLWH aged 18-60 years who initiated ART during Fiebig I-V AHI, are virologically suppressed (HIV-1 RNA \<50 copies/ml for ≥48 weeks) on uninterrupted ART, and who meet study inclusion criteria into Groups 1 and 2. • Active Arm - Group 1 will receive: i. VRC07-523LS and PGDM1400LS at Step 2, Week 0 ii. ART starting at Step 2, Week 1 iii. ChAdOx1.tHIVconsv1 and ChAdOx1.HIVconsv62 vaccination at Step 2, Week 4 iv. MVA.tHIVconsv4 and A244d11 gp120/ALFQ vaccination at Step 2, Weeks 12 and 20
Comparator ArmPlaceboFor the primary objectives and endpoints, this study will enroll PLWH aged 18-60 years who initiated ART during Fiebig I-V AHI, are virologically suppressed (HIV-1 RNA \<50 copies/ml for ≥48 weeks) on uninterrupted ART, and who meet study inclusion criteria into Groups 1 and 2. • Comparator Arm - Group 2 will receive: i. VRC07-523LS and PGDM1400LS at Step 2, Week 0 ii. ART starting at Step 2, Week 1 iii. Placebo vaccination at Step 2, Weeks 4, 12 and 20
Active ArmVRC07-523LSFor the primary objectives and endpoints, this study will enroll PLWH aged 18-60 years who initiated ART during Fiebig I-V AHI, are virologically suppressed (HIV-1 RNA \<50 copies/ml for ≥48 weeks) on uninterrupted ART, and who meet study inclusion criteria into Groups 1 and 2. • Active Arm - Group 1 will receive: i. VRC07-523LS and PGDM1400LS at Step 2, Week 0 ii. ART starting at Step 2, Week 1 iii. ChAdOx1.tHIVconsv1 and ChAdOx1.HIVconsv62 vaccination at Step 2, Week 4 iv. MVA.tHIVconsv4 and A244d11 gp120/ALFQ vaccination at Step 2, Weeks 12 and 20
Active ArmChAdOx1.HIVconsv62For the primary objectives and endpoints, this study will enroll PLWH aged 18-60 years who initiated ART during Fiebig I-V AHI, are virologically suppressed (HIV-1 RNA \<50 copies/ml for ≥48 weeks) on uninterrupted ART, and who meet study inclusion criteria into Groups 1 and 2. • Active Arm - Group 1 will receive: i. VRC07-523LS and PGDM1400LS at Step 2, Week 0 ii. ART starting at Step 2, Week 1 iii. ChAdOx1.tHIVconsv1 and ChAdOx1.HIVconsv62 vaccination at Step 2, Week 4 iv. MVA.tHIVconsv4 and A244d11 gp120/ALFQ vaccination at Step 2, Weeks 12 and 20
Exploratory ArmMVA.tHIVconsv4This study will also enroll an Exploratory arm of PLWH aged 18-60 years who are diagnosed during Fiebig I-V AHI, have not yet initiated ART, and meet all study inclusion criteria into Group 3. • Exploratory Arm - Group 3 will receive: i. VRC07-523LS and PGDM1400LS at Step 2, Week 0 ii. ART starting at Step 2, Week 0 iii. ChAdOx1.tHIVconsv1 and ChAdOx1.HIVconsv62 vaccination at Step 2, Week 12 iv. MVA.tHIVconsv4 and A244d11 gp120/ALFQ vaccination at Step 2, Weeks 20 and 28
Active ArmChAdOx1.tHIVconsv1For the primary objectives and endpoints, this study will enroll PLWH aged 18-60 years who initiated ART during Fiebig I-V AHI, are virologically suppressed (HIV-1 RNA \<50 copies/ml for ≥48 weeks) on uninterrupted ART, and who meet study inclusion criteria into Groups 1 and 2. • Active Arm - Group 1 will receive: i. VRC07-523LS and PGDM1400LS at Step 2, Week 0 ii. ART starting at Step 2, Week 1 iii. ChAdOx1.tHIVconsv1 and ChAdOx1.HIVconsv62 vaccination at Step 2, Week 4 iv. MVA.tHIVconsv4 and A244d11 gp120/ALFQ vaccination at Step 2, Weeks 12 and 20
Exploratory ArmChAdOx1.tHIVconsv1This study will also enroll an Exploratory arm of PLWH aged 18-60 years who are diagnosed during Fiebig I-V AHI, have not yet initiated ART, and meet all study inclusion criteria into Group 3. • Exploratory Arm - Group 3 will receive: i. VRC07-523LS and PGDM1400LS at Step 2, Week 0 ii. ART starting at Step 2, Week 0 iii. ChAdOx1.tHIVconsv1 and ChAdOx1.HIVconsv62 vaccination at Step 2, Week 12 iv. MVA.tHIVconsv4 and A244d11 gp120/ALFQ vaccination at Step 2, Weeks 20 and 28
Exploratory ArmChAdOx1.HIVconsv62This study will also enroll an Exploratory arm of PLWH aged 18-60 years who are diagnosed during Fiebig I-V AHI, have not yet initiated ART, and meet all study inclusion criteria into Group 3. • Exploratory Arm - Group 3 will receive: i. VRC07-523LS and PGDM1400LS at Step 2, Week 0 ii. ART starting at Step 2, Week 0 iii. ChAdOx1.tHIVconsv1 and ChAdOx1.HIVconsv62 vaccination at Step 2, Week 12 iv. MVA.tHIVconsv4 and A244d11 gp120/ALFQ vaccination at Step 2, Weeks 20 and 28
Active ArmMVA.tHIVconsv4For the primary objectives and endpoints, this study will enroll PLWH aged 18-60 years who initiated ART during Fiebig I-V AHI, are virologically suppressed (HIV-1 RNA \<50 copies/ml for ≥48 weeks) on uninterrupted ART, and who meet study inclusion criteria into Groups 1 and 2. • Active Arm - Group 1 will receive: i. VRC07-523LS and PGDM1400LS at Step 2, Week 0 ii. ART starting at Step 2, Week 1 iii. ChAdOx1.tHIVconsv1 and ChAdOx1.HIVconsv62 vaccination at Step 2, Week 4 iv. MVA.tHIVconsv4 and A244d11 gp120/ALFQ vaccination at Step 2, Weeks 12 and 20
Comparator ArmPGDM1400LSFor the primary objectives and endpoints, this study will enroll PLWH aged 18-60 years who initiated ART during Fiebig I-V AHI, are virologically suppressed (HIV-1 RNA \<50 copies/ml for ≥48 weeks) on uninterrupted ART, and who meet study inclusion criteria into Groups 1 and 2. • Comparator Arm - Group 2 will receive: i. VRC07-523LS and PGDM1400LS at Step 2, Week 0 ii. ART starting at Step 2, Week 1 iii. Placebo vaccination at Step 2, Weeks 4, 12 and 20
Comparator ArmVRC07-523LSFor the primary objectives and endpoints, this study will enroll PLWH aged 18-60 years who initiated ART during Fiebig I-V AHI, are virologically suppressed (HIV-1 RNA \<50 copies/ml for ≥48 weeks) on uninterrupted ART, and who meet study inclusion criteria into Groups 1 and 2. • Comparator Arm - Group 2 will receive: i. VRC07-523LS and PGDM1400LS at Step 2, Week 0 ii. ART starting at Step 2, Week 1 iii. Placebo vaccination at Step 2, Weeks 4, 12 and 20
Exploratory ArmVRC07-523LSThis study will also enroll an Exploratory arm of PLWH aged 18-60 years who are diagnosed during Fiebig I-V AHI, have not yet initiated ART, and meet all study inclusion criteria into Group 3. • Exploratory Arm - Group 3 will receive: i. VRC07-523LS and PGDM1400LS at Step 2, Week 0 ii. ART starting at Step 2, Week 0 iii. ChAdOx1.tHIVconsv1 and ChAdOx1.HIVconsv62 vaccination at Step 2, Week 12 iv. MVA.tHIVconsv4 and A244d11 gp120/ALFQ vaccination at Step 2, Weeks 20 and 28
Exploratory ArmA244d11 gp120This study will also enroll an Exploratory arm of PLWH aged 18-60 years who are diagnosed during Fiebig I-V AHI, have not yet initiated ART, and meet all study inclusion criteria into Group 3. • Exploratory Arm - Group 3 will receive: i. VRC07-523LS and PGDM1400LS at Step 2, Week 0 ii. ART starting at Step 2, Week 0 iii. ChAdOx1.tHIVconsv1 and ChAdOx1.HIVconsv62 vaccination at Step 2, Week 12 iv. MVA.tHIVconsv4 and A244d11 gp120/ALFQ vaccination at Step 2, Weeks 20 and 28
Exploratory ArmPGDM1400LSThis study will also enroll an Exploratory arm of PLWH aged 18-60 years who are diagnosed during Fiebig I-V AHI, have not yet initiated ART, and meet all study inclusion criteria into Group 3. • Exploratory Arm - Group 3 will receive: i. VRC07-523LS and PGDM1400LS at Step 2, Week 0 ii. ART starting at Step 2, Week 0 iii. ChAdOx1.tHIVconsv1 and ChAdOx1.HIVconsv62 vaccination at Step 2, Week 12 iv. MVA.tHIVconsv4 and A244d11 gp120/ALFQ vaccination at Step 2, Weeks 20 and 28
Exploratory ArmALFQThis study will also enroll an Exploratory arm of PLWH aged 18-60 years who are diagnosed during Fiebig I-V AHI, have not yet initiated ART, and meet all study inclusion criteria into Group 3. • Exploratory Arm - Group 3 will receive: i. VRC07-523LS and PGDM1400LS at Step 2, Week 0 ii. ART starting at Step 2, Week 0 iii. ChAdOx1.tHIVconsv1 and ChAdOx1.HIVconsv62 vaccination at Step 2, Week 12 iv. MVA.tHIVconsv4 and A244d11 gp120/ALFQ vaccination at Step 2, Weeks 20 and 28
Active ArmVRC07-523LSActive Arm (Group 1) will have 20 participants. For the primary objectives and endpoints, this study will enroll participants of the RV 254/WRAIR #1494 study, who are PLWH aged 18 - 60 years, initiated ART during Fiebig I-V AHI, are virologically suppressed (HIV-1 RNA \< 50 copies/mL for ≥ 48 weeks) on uninterrupted ART, and who meet study inclusion criteria into Groups 1 and 2. For Active Arm: Group 1 will receive: i. VRC07-523LS and PGDM1400LS at Step 2, Week 0 ii. ART starting at Step 2, Week 1 iii. ChAdOx1.tHIVconsv1 and ChAdOx1.HIVconsv62 vaccination at Step 2, Week 4 iv. MVA.tHIVconsv4 and A244d11 gp120/ALFQ vaccination at Step 2, Weeks 12 and 20
Active ArmPGDM1400LSActive Arm (Group 1) will have 20 participants. For the primary objectives and endpoints, this study will enroll participants of the RV 254/WRAIR #1494 study, who are PLWH aged 18 - 60 years, initiated ART during Fiebig I-V AHI, are virologically suppressed (HIV-1 RNA \< 50 copies/mL for ≥ 48 weeks) on uninterrupted ART, and who meet study inclusion criteria into Groups 1 and 2. For Active Arm: Group 1 will receive: i. VRC07-523LS and PGDM1400LS at Step 2, Week 0 ii. ART starting at Step 2, Week 1 iii. ChAdOx1.tHIVconsv1 and ChAdOx1.HIVconsv62 vaccination at Step 2, Week 4 iv. MVA.tHIVconsv4 and A244d11 gp120/ALFQ vaccination at Step 2, Weeks 12 and 20
Active ArmChAdOx1.tHIVconsv1Active Arm (Group 1) will have 20 participants. For the primary objectives and endpoints, this study will enroll participants of the RV 254/WRAIR #1494 study, who are PLWH aged 18 - 60 years, initiated ART during Fiebig I-V AHI, are virologically suppressed (HIV-1 RNA \< 50 copies/mL for ≥ 48 weeks) on uninterrupted ART, and who meet study inclusion criteria into Groups 1 and 2. For Active Arm: Group 1 will receive: i. VRC07-523LS and PGDM1400LS at Step 2, Week 0 ii. ART starting at Step 2, Week 1 iii. ChAdOx1.tHIVconsv1 and ChAdOx1.HIVconsv62 vaccination at Step 2, Week 4 iv. MVA.tHIVconsv4 and A244d11 gp120/ALFQ vaccination at Step 2, Weeks 12 and 20
Active ArmChAdOx1.HIVconsv62Active Arm (Group 1) will have 20 participants. For the primary objectives and endpoints, this study will enroll participants of the RV 254/WRAIR #1494 study, who are PLWH aged 18 - 60 years, initiated ART during Fiebig I-V AHI, are virologically suppressed (HIV-1 RNA \< 50 copies/mL for ≥ 48 weeks) on uninterrupted ART, and who meet study inclusion criteria into Groups 1 and 2. For Active Arm: Group 1 will receive: i. VRC07-523LS and PGDM1400LS at Step 2, Week 0 ii. ART starting at Step 2, Week 1 iii. ChAdOx1.tHIVconsv1 and ChAdOx1.HIVconsv62 vaccination at Step 2, Week 4 iv. MVA.tHIVconsv4 and A244d11 gp120/ALFQ vaccination at Step 2, Weeks 12 and 20
Active ArmALFQActive Arm (Group 1) will have 20 participants. For the primary objectives and endpoints, this study will enroll participants of the RV 254/WRAIR #1494 study, who are PLWH aged 18 - 60 years, initiated ART during Fiebig I-V AHI, are virologically suppressed (HIV-1 RNA \< 50 copies/mL for ≥ 48 weeks) on uninterrupted ART, and who meet study inclusion criteria into Groups 1 and 2. For Active Arm: Group 1 will receive: i. VRC07-523LS and PGDM1400LS at Step 2, Week 0 ii. ART starting at Step 2, Week 1 iii. ChAdOx1.tHIVconsv1 and ChAdOx1.HIVconsv62 vaccination at Step 2, Week 4 iv. MVA.tHIVconsv4 and A244d11 gp120/ALFQ vaccination at Step 2, Weeks 12 and 20
Comparator ArmPGDM1400LSComparator Arm (Group 2) will have 20 participants. For the primary objectives and endpoints, this study will enroll participants of the RV 254/WRAIR #1494 study, who are PLWH aged 18 - 60 years, initiated ART during Fiebig I-V AHI, are virologically suppressed (HIV-1 RNA \< 50 copies/mL for ≥ 48 weeks) on uninterrupted ART, and who meet study inclusion criteria into Groups 1 and 2. For Comparator Arm - Group 2 will receive: i. VRC07-523LS and PGDM1400LS at Step 2, Week 0 ii. ART starting at Step 2, Week 1 iii. Placebo vaccination at Step 2, Weeks 4, 12 and 20
Active ArmMVA.tHIVconsv4Active Arm (Group 1) will have 20 participants. For the primary objectives and endpoints, this study will enroll participants of the RV 254/WRAIR #1494 study, who are PLWH aged 18 - 60 years, initiated ART during Fiebig I-V AHI, are virologically suppressed (HIV-1 RNA \< 50 copies/mL for ≥ 48 weeks) on uninterrupted ART, and who meet study inclusion criteria into Groups 1 and 2. For Active Arm: Group 1 will receive: i. VRC07-523LS and PGDM1400LS at Step 2, Week 0 ii. ART starting at Step 2, Week 1 iii. ChAdOx1.tHIVconsv1 and ChAdOx1.HIVconsv62 vaccination at Step 2, Week 4 iv. MVA.tHIVconsv4 and A244d11 gp120/ALFQ vaccination at Step 2, Weeks 12 and 20
Exploratory ArmVRC07-523LSExploratory Arm (Group 3) will have 8 participants. This study will also enroll an Exploratory arm of newly enrolled participants of the RV 254/ WRAIR #1494 study, who are PLWH aged 18 - 60 years, diagnosed during Fiebig I-V AHI, have not yet initiated ART, and meet all study inclusion criteria into Group 3. For the Exploratory Arm - Group 3 will receive: iv. VRC07-523LS and PGDM1400LS at Step 2, Week 0 v. ART starting at Step 2, Week 0 vi. ChAdOx1.tHIVconsv1 and ChAdOx1.HIVconsv62 vaccination at Step 2, Week 12 vii. MVA.tHIVconsv4 and A244d11 gp120/ALFQ vaccination at Step 2, Weeks 20 and 28
Active ArmA244d11 gp120Active Arm (Group 1) will have 20 participants. For the primary objectives and endpoints, this study will enroll participants of the RV 254/WRAIR #1494 study, who are PLWH aged 18 - 60 years, initiated ART during Fiebig I-V AHI, are virologically suppressed (HIV-1 RNA \< 50 copies/mL for ≥ 48 weeks) on uninterrupted ART, and who meet study inclusion criteria into Groups 1 and 2. For Active Arm: Group 1 will receive: i. VRC07-523LS and PGDM1400LS at Step 2, Week 0 ii. ART starting at Step 2, Week 1 iii. ChAdOx1.tHIVconsv1 and ChAdOx1.HIVconsv62 vaccination at Step 2, Week 4 iv. MVA.tHIVconsv4 and A244d11 gp120/ALFQ vaccination at Step 2, Weeks 12 and 20
Comparator ArmVRC07-523LSComparator Arm (Group 2) will have 20 participants. For the primary objectives and endpoints, this study will enroll participants of the RV 254/WRAIR #1494 study, who are PLWH aged 18 - 60 years, initiated ART during Fiebig I-V AHI, are virologically suppressed (HIV-1 RNA \< 50 copies/mL for ≥ 48 weeks) on uninterrupted ART, and who meet study inclusion criteria into Groups 1 and 2. For Comparator Arm - Group 2 will receive: i. VRC07-523LS and PGDM1400LS at Step 2, Week 0 ii. ART starting at Step 2, Week 1 iii. Placebo vaccination at Step 2, Weeks 4, 12 and 20
Exploratory ArmPGDM1400LSExploratory Arm (Group 3) will have 8 participants. This study will also enroll an Exploratory arm of newly enrolled participants of the RV 254/ WRAIR #1494 study, who are PLWH aged 18 - 60 years, diagnosed during Fiebig I-V AHI, have not yet initiated ART, and meet all study inclusion criteria into Group 3. For the Exploratory Arm - Group 3 will receive: iv. VRC07-523LS and PGDM1400LS at Step 2, Week 0 v. ART starting at Step 2, Week 0 vi. ChAdOx1.tHIVconsv1 and ChAdOx1.HIVconsv62 vaccination at Step 2, Week 12 vii. MVA.tHIVconsv4 and A244d11 gp120/ALFQ vaccination at Step 2, Weeks 20 and 28
Comparator ArmPlaceboComparator Arm (Group 2) will have 20 participants. For the primary objectives and endpoints, this study will enroll participants of the RV 254/WRAIR #1494 study, who are PLWH aged 18 - 60 years, initiated ART during Fiebig I-V AHI, are virologically suppressed (HIV-1 RNA \< 50 copies/mL for ≥ 48 weeks) on uninterrupted ART, and who meet study inclusion criteria into Groups 1 and 2. For Comparator Arm - Group 2 will receive: i. VRC07-523LS and PGDM1400LS at Step 2, Week 0 ii. ART starting at Step 2, Week 1 iii. Placebo vaccination at Step 2, Weeks 4, 12 and 20
Exploratory ArmChAdOx1.tHIVconsv1Exploratory Arm (Group 3) will have 8 participants. This study will also enroll an Exploratory arm of newly enrolled participants of the RV 254/ WRAIR #1494 study, who are PLWH aged 18 - 60 years, diagnosed during Fiebig I-V AHI, have not yet initiated ART, and meet all study inclusion criteria into Group 3. For the Exploratory Arm - Group 3 will receive: iv. VRC07-523LS and PGDM1400LS at Step 2, Week 0 v. ART starting at Step 2, Week 0 vi. ChAdOx1.tHIVconsv1 and ChAdOx1.HIVconsv62 vaccination at Step 2, Week 12 vii. MVA.tHIVconsv4 and A244d11 gp120/ALFQ vaccination at Step 2, Weeks 20 and 28
Exploratory ArmChAdOx1.HIVconsv62Exploratory Arm (Group 3) will have 8 participants. This study will also enroll an Exploratory arm of newly enrolled participants of the RV 254/ WRAIR #1494 study, who are PLWH aged 18 - 60 years, diagnosed during Fiebig I-V AHI, have not yet initiated ART, and meet all study inclusion criteria into Group 3. For the Exploratory Arm - Group 3 will receive: iv. VRC07-523LS and PGDM1400LS at Step 2, Week 0 v. ART starting at Step 2, Week 0 vi. ChAdOx1.tHIVconsv1 and ChAdOx1.HIVconsv62 vaccination at Step 2, Week 12 vii. MVA.tHIVconsv4 and A244d11 gp120/ALFQ vaccination at Step 2, Weeks 20 and 28
Exploratory ArmMVA.tHIVconsv4Exploratory Arm (Group 3) will have 8 participants. This study will also enroll an Exploratory arm of newly enrolled participants of the RV 254/ WRAIR #1494 study, who are PLWH aged 18 - 60 years, diagnosed during Fiebig I-V AHI, have not yet initiated ART, and meet all study inclusion criteria into Group 3. For the Exploratory Arm - Group 3 will receive: iv. VRC07-523LS and PGDM1400LS at Step 2, Week 0 v. ART starting at Step 2, Week 0 vi. ChAdOx1.tHIVconsv1 and ChAdOx1.HIVconsv62 vaccination at Step 2, Week 12 vii. MVA.tHIVconsv4 and A244d11 gp120/ALFQ vaccination at Step 2, Weeks 20 and 28
Exploratory ArmA244d11 gp120Exploratory Arm (Group 3) will have 8 participants. This study will also enroll an Exploratory arm of newly enrolled participants of the RV 254/ WRAIR #1494 study, who are PLWH aged 18 - 60 years, diagnosed during Fiebig I-V AHI, have not yet initiated ART, and meet all study inclusion criteria into Group 3. For the Exploratory Arm - Group 3 will receive: iv. VRC07-523LS and PGDM1400LS at Step 2, Week 0 v. ART starting at Step 2, Week 0 vi. ChAdOx1.tHIVconsv1 and ChAdOx1.HIVconsv62 vaccination at Step 2, Week 12 vii. MVA.tHIVconsv4 and A244d11 gp120/ALFQ vaccination at Step 2, Weeks 20 and 28
Exploratory ArmALFQExploratory Arm (Group 3) will have 8 participants. This study will also enroll an Exploratory arm of newly enrolled participants of the RV 254/ WRAIR #1494 study, who are PLWH aged 18 - 60 years, diagnosed during Fiebig I-V AHI, have not yet initiated ART, and meet all study inclusion criteria into Group 3. For the Exploratory Arm - Group 3 will receive: iv. VRC07-523LS and PGDM1400LS at Step 2, Week 0 v. ART starting at Step 2, Week 0 vi. ChAdOx1.tHIVconsv1 and ChAdOx1.HIVconsv62 vaccination at Step 2, Week 12 vii. MVA.tHIVconsv4 and A244d11 gp120/ALFQ vaccination at Step 2, Weeks 20 and 28
Primary Outcome Measures
NameTimeMethod
To evaluate the safety of VRC07-523LS and PGDM1400LS in combination with ChAdOx1.tHIVconsv1, ChAdOx1.HIVconsv62, MVA.tHIVconsv4 and A244d11 gp120/ALFQ vaccination in PLWH who initiated ART during AHI.Measured from enrollment to a minimum of 50 weeks to a maximum of 100 weeks per participant

Occurrence of ≥ grade 3 AE or SAE that are possibly, probably, or definitely related to the IPs during the study

To evaluate the impact of VRC07-523LS and PGDM1400LS in combination with ChAdOx1.tHIVconsv1, ChAdOx1.HIVconsv62, MVA.tHIVconsv4 and A244d11 gp120/ALFQ vaccination on viral load setpoint after viral rebound during ATI.Measured for 50 weeks from entry into step 3 (treatment interruption and last mAb administration)

Viral Load setpoint after 2 weeks post viral rebound during ATI.

Secondary Outcome Measures
NameTimeMethod
To evaluate the impact of VRC07-523LS and PGDM1400LS in combination with ChAdOx1.tHIVconsv1, ChAdOx1.HIVconsv62, MVA.tHIVconsv4 and A244d11 gp120/ALFQ vaccination on time to first documented HIV-1 RNA viral rebound of ≥50 copies/mL following ATI.Measured for 50 weeks from entry into step 3 (treatment interruption and last mAb administration)

Time (days) from ATI to first documented HIV-1 RNA viral rebound of ≥50 copies/mL

To evaluate the impact of VRC07-523LS and PGDM1400LS in combination with ChAdOx1.tHIVconsv1, ChAdOx1.HIVconsv62, MVA.tHIVconsv4 and A244d11 gp120/ALFQ vaccination on viral rebound dynamics during ATI.Measured for 50 weeks from entry into step 3 (treatment interruption and last mAb administration)

Peak viral load, nadir viral load, and viral load area under the curve (AUC) during the first 8 weeks after viral rebound.

To evaluate the impact of VRC07-523LS and PGDM1400LS in combination with ChAdOx1.tHIVconsv1, ChAdOx1.HIVconsv62, MVA.tHIVconsv4 and A244d11 gp120/ALFQ vaccination on time to first documented HIV-1 RNA viral rebound of ≥1000 copies/mL following ATI.Measured for 50 weeks from entry into step 3 (treatment interruption and last mAb administration)

Time (days) from ATI to first documented HIV-1 RNA viral rebound of ≥1000 copies/mL

To assess the impact of VRC07-523LS and PGDM1400LS in combination with ChAdOx1.tHIVconsv1, ChAdOx1.HIVconsv62, MVA.tHIVconsv4 and A244d11 gp120/ALFQ vaccination on total HIV-1 DNA levels prior to ATIMeasured for 50 weeks from entry into step 3 (treatment interruption and last mAb administration)

Total HIV-1 DNA levels prior to ATI.

To assess the effects of VRC07-523LS and PGDM1400LS in combination with ChAdOx1.tHIVconsv1, ChAdOx1.HIVconsv62, MVA.tHIVconsv4 and A244d11 gp120/ALFQ vaccination on HIV-1 specific cellular immune responses prior to ATI.Measure during step 2: from the initial administration of bNab therapy through week 22 in arms 1 and 2 and through week 30 in arm 3.

Magnitude, breadth, cytokine production, cytotoxicity, proliferation and related functions of HIV-1 specific CD4 and CD8 T-cells prior to ATI.

To evaluate the impact of VRC07-523LS and PGDM1400LS in combination with ChAdOx1.tHIVconsv1, ChAdOx1.HIVconsv62, MVA.tHIVconsv4 and A244d11 gp120/ALFQ vaccination on the number of participants with plasma HIV-1 RNA < 1000 copies/mL at 12 and 24 weeks ofMeasured for 50 weeks from entry into step 3 (treatment interruption and last mAb administration)

The number of participants with plasma HIV-1 RNA \< 1000 copies/mL at 12 and 24 weeks of ATI.

To evaluate the impact of VRC07-523LS and PGDM1400LS in combination with ChAdOx1.tHIVconsv1, ChAdOx1.HIVconsv62, MVA.tHIVconsv4 and A244d11 gp120/ALFQ vaccination on time to ART resumption for an HIV-related (virologic, immunologic, or clinical) reason di. Measured for 50 weeks from entry into step 3 (treatment interruption and last mAb administration)

Time (days) from ATI to ART resumption during Step 3

To measure the effects of VRC07-523LS and PGDM1400LS in combination with ChAdOx1.tHIVconsv1, ChAdOx1.HIVconsv62, MVA.tHIVconsv4 and A244d11 gp120/ALFQ vaccination on HIV-1 RNA levels while on ART.Measured for 50 weeks from entry into step 3 (treatment interruption and last mAb administration)

HIV-1 RNA levels using single copy assay while on ART

To assess the effects of VRC07-523LS andPGDM1400LSin combination withChAdOx1.tHIVconsv1, ChAdOx1.HIVconsv62,MVA.tHIVconsv4 and A244d11 gp120/ALFQvaccination on HIV-1 specific humoral immuneresponses.Measure at week 0 of Step 3 in all groups, just prior to ATI.

Binding antibodies to HIV-1, ADCC, ADCP andother functional ab-mediated responses prior toATI.

To assess the impact of VRC07-523LS andPGDM1400LS in combination withChAdOx1.tHIVconsv1, ChAdOx1.HIVconsv62,MVA.tHIVconsv4 and A244d11 gp120/ALFQvaccination on the HIV-1 reservoir prior to ATIMeasure at week 0 of Step 3 in all groups, just prior to ATI.

Measurements of HIV-1 reservoir using assaysbased on contemporary literature that may includebut are not limited to total and/or intact HIV-1DNA, quantitative infectious virus outgrowth(qVOA), cell- associated HIV-1 RNA, and relatedassays prior to ATI.

To characterize the pharmacokinetics of VRC07-523LS and PGDM1400LS.Measured for 50 weeks from entry into step 3 (treatment interruption and last mAb administration)

Concentration of PGDM1400LS during ATI by MSD

To describe the neurological, neuroimaging andneuro-cognitive effects that occur after receiptof VRC07-523LS and PGDM1400LS incombination with ChAdOx1.tHIVconsv1,ChAdOx1.HIVconsv62, MVA.tHIVconsv4 andA244d11 gp120/ALFQ vaccination and ATIMeasure at week 0 of Step 3 in all groups, just prior to ATI.

Findings on CSF examination, MRI/MRS,neurological and neurocognitive testing before andafter receipt of study products and ATI

To assess the effects of VRC07-523LS and PGDM1400LSin combination with ChAdOx1.tHIVconsv1, ChAdOx1.HIVconsv62, MVA.tHIVconsv4 and A244d11 gp120/ALFQ vaccination on HIV-1 specific humoral immune responses.Measure at week 0 of Step 3 in all groups, just prior to ATI.

Measure Antibody Dependent Cellular Phagocytosis using clade AE protein coated target cells

To assess the impact of VRC07-523LS and PGDM1400LS in combination with ChAdOx1.tHIVconsv1, ChAdOx1.HIVconsv62, MVA.tHIVconsv4 and A244d11 gp120/ALFQ vaccination on the HIV-1 reservoir prior to ATIMeasure at week 0 of Step 3 in all groups, just prior to ATI.

Total HIV cell associate RNA measured by the quantitative RNA PCR

Trial Locations

Locations (1)

The Faculty of Medicine, Chulalongkorn University/ King Chulalongkorn Memorial Hospital

🇹🇭

Pathum Wan, Bangkok, Thailand

© Copyright 2025. All Rights Reserved by MedPath