Phase 2a Trial to Evaluate Safety and Immunogenicity of COVID-19 Vaccine Strategies in HIV-infected/Uninfected Adults.

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ACTIVE_NOT_RECRUITING

Clinical Phase

PHASE2

Total Enrollment

694 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-07-25

Study Completion Date

2024-12-31

Brief Summary

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This is a multicenter, randomized, observer blind clinical trial. A total of 750 evaluable HIV-infected (660) and HIV-uninfected (90) adult participants meeting all entry criteria (all inclusion and no exclusion criteria) will be enrolled in 3 treatment strategies in 3 participant groups dependent on prior vaccination with a single dose Janssen (Group 1), 2 doses of Pfizer (Group 2) or no prior COVID-19 vaccination with evidence of prior SARS-CoV-2 infection (Group 3) .A total of 300 participants per group will be enrolled in Groups 1 and 2 (255 HIV-infected and 45 HIV-uninfected per group), and 150 HIV-infected, unvaccinated participants in Group 3. Each treatment regimen (Vaccine Arm: A, B or C) will evaluate 250 participants. Groups 1 and 2 will enrol 85 HIV-infected and 15 HIV-uninfected per vaccine arm.

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Detailed Description

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Conditions

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COVID-19

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

This is a multicenter, randomized, observer blind clinical trial. A total of 750 evaluable HIV-infected (660) and HIV-uninfected (90) adult participants meeting all entry criteria (all inclusion and no exclusion criteria) will be enrolled in 3 treatment strategies in 3 participant groups dependent on prior vaccination with a single dose Janssen (Group 1), 2 doses of Pfizer (Group 2) or no prior COVID-19 vaccination with evidence of prior SARS-CoV-2 infection (Group 3). A total of 300 participants per group will be enrolled in Groups 1 and 2 (255 HIV-infected and 45 HIV-uninfected per group), and 150 HIV-infected, unvaccinated participants in Group 3. Each treatment regimen (Vaccine Arm: A, B or C) will evaluate 250 participants. Groups 1 and 2 will enrol 85 HIV-infected and 15 HIV-uninfected per vaccine arm.

Primary Study Purpose

PREVENTION

Blinding Strategy

DOUBLE

Participants Investigators

Participants, investigators, and site staff (except for site pharmacists) will be blinded to participant treatment group assignment for the full duration of the study. Study product assignments are accessible to the site pharmacists and unblinded monitors who are required to know this information in order to ensure proper trial conduct. Any discussion of study product assignment between pharmacy staff and any other staff is prohibited. The DSMB members may be unblinded on request to treatment assignment, in order to conduct review of trial safety data.

Study Groups

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Ad26.COV2.S (VAC31518, JNJ-78436735) Vaccine

Description: The Ad26.COV2.Sis a recombinant, replication-defective adenovirus type 26 (Ad26) vector vaccine encoding the SARS-CoV-2 spike (S) glycoprotein.

Dose: The Ad26.COV2.S drug product (DP) is supplied as a single-dose or multi-dose suspension (target DP titer is 1×1011 virus particles \[vp\]/mL or 2×1011 vp/mL) for intramuscular (IM) injection.

Dosage Form: Sterile liquid suspension for injection Colourless to slightly yellow, clear to very opalescent suspension (pH 6-6.4).

Packaging: The vaccine will be provided as a multi-dose vial with 5 doses per vial with a total volume of 2.5ml.

Administration: Vaccination (5x10\^10 vp dose) is given as a 0.5mL intramuscular injection into the deltoid muscle in the upper arm.

Group Type ACTIVE_COMPARATOR

Ad26.COV2.S (VAC31518, JNJ-78436735) Vaccine, SARS-CoV-2 rS (CovovaxTM), BNT162b2 (Pfizer)

Intervention Type DRUG

As included in arm/group descriptions

SARS-CoV-2 rS (CovovaxTM)

Description - SARS-CoV-2 rS (CovovaxTM): is a recombinant protein nanoparticle vaccine constructed from the SARS-CoV-2 full-length spike (S) glycoprotein co-formulated with Matrix-M1 adjuvant.

Dose: Each 0.5ml of SARS-CoV-2 rS consists of 5μg of a recombinant nanoparticle spike protein plus 50 μg of Matrix-M1 adjuvant.

Dosage Form: Suspension for injection COVOVAX™ is colourless to slightly yellow, clear to mildly opalescent, free to practically free from visible particles.

Packaging: The vaccine will be supplied as a multi-dose vial containing 10 doses per vial Administration: Vaccinations are given as a 0.5mL intramuscular injection into the deltoid muscle in the upper arm

Group Type ACTIVE_COMPARATOR

Ad26.COV2.S (VAC31518, JNJ-78436735) Vaccine, SARS-CoV-2 rS (CovovaxTM), BNT162b2 (Pfizer)

Intervention Type DRUG

As included in arm/group descriptions

BNT162b2 (Pfizer) (Comirnaty)

Description: is a nucleoside-modified messenger RNA encoding the viral spike (S) glycoprotein of SARS-CoV-2. Vaccinations 30mcg (0.3mL) will be given as an intramuscular injection into the deltoid muscle in the upper arm.

Dose: Each dose (0.3 mL) contains 30 micrograms of COVID-19 mRNA Vaccine. Dosage Form: White to off-white frozen suspension for Intramuscular (IM) injection Packaging: This vaccine will be supplied as a multidose vial and must be diluted with 0.9% Sodium Chloride USP before use. Each vial (0.45 mL) contains 6 doses of 0.3 mL after dilution.

Administration: Comirnaty should be administered intramuscularly after dilution. Each dose must contain 0.3 mL of vaccine. The preferred site is the deltoid muscle of the upper arm

Group Type ACTIVE_COMPARATOR

Ad26.COV2.S (VAC31518, JNJ-78436735) Vaccine, SARS-CoV-2 rS (CovovaxTM), BNT162b2 (Pfizer)

Intervention Type DRUG

As included in arm/group descriptions

Interventions

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Ad26.COV2.S (VAC31518, JNJ-78436735) Vaccine, SARS-CoV-2 rS (CovovaxTM), BNT162b2 (Pfizer)

As included in arm/group descriptions

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

1. . Adult male or female aged 18 and above at the time of written informed consent
2. . Willing and able to give written informed consent
3. . HIV-infected persons on ART for at least three months prior to enrollment, or HIV-uninfected persons
4. . Able to provide evidence of completing a primary COVID-19 vaccination regimen with either a single dose of Ad26.COV2.S or two doses of BNT162b2 at least two months prior to enrolment, or HIV-infected with no prior COVID-19 vaccination and evidence of prior SAR-CoV-2 infection
5. . Residing in the vicinity of the clinical trial site and planning to remain in the area of the study for 12months
6. . Able and willing to participate for the duration of the study visits and follow-up
7. . Willing to provide verifiable identification (eg. Identity document, passport) at study entry and follow-up visits

Exclusion Criteria

1. . Positive SARS-CoV-2 PCRor antigen detection test
2. . Persons with undocumented HIV status
3. . HIV-infected persons with CD4count \<1 00 cells/mm3and/or Viral Load \> 1000 copies/ml
4. . Known allergy or history of anaphylaxis or other serious adverse reactions to specific COVID-19 vaccine constituents
5. . History of capillary leak syndrome, thrombosis with thrombocytopenia syndrome (TTS), heparin-induced thrombocytopenia (HIT), history of any neurological disorders or seizures including Guillain-Barré syndrome, with the exception of febrile seizures during childhood
6. . Participants with acute illness (this does not include minor illnesses such as diarrhoea or mild upper respiratory tract infection) or body temperature ≥38.0ºC on Day 1 will be excluded from randomization at that time but may be rescheduled for randomization and/or vaccination at a later date.
7. . Participants who cannot communicate reliably with the investigator
8. . Pregnant or breastfeeding
9. . Women of childbearing potential who are not on an effective long-acting contraceptive method for at least 21 days prior to enrollment (date of signed informed consent) and not intending to continue contraception for up to 9 months post first vaccination.(See Section 10.5.1 below)
10. . Prior administration of an investigational coronavirus vaccine (for example, SARS-CoV-2, SARS-CoV, Middle East Respiratory Syndrome \[MERS-CoV\] vaccine), except for participants of the Sisonke trial
11. . Prior administration of any SARS-CoV-2 vaccine boost
12. . Has a medical, psychiatric, or occupational condition that may pose additional risk as a result of participation, or that could interfere with safety assessments or interpretation of results according to the Investigator's judgment
13. . History of harmful substance or alcohol use within the past 2 years. This exclusion does not apply to cannabis use.
14. . Receipt of:

1. . Systemic immunosuppressants or immune-modifying drugs for \>14 days in total within 6 months prior to the day of randomization (for corticosteroids, ≥20 mg/day prednisone equivalent). Topical tacrolimus is allowed if not used within 14 days prior to the day of randomization. Inhaled, nasal, and topical steroids are allowed.
2. . Intravenous blood products (red cells, platelets, immunoglobulins, monoclonal antibodies specific for SARS-CoV-2) within 3 months prior to enrollment
3. . Experimental vaccine within the past 6 months before first vaccination
4. . Any inactivated vaccines received within 14 days prior to first vaccination or planned within 14 days of first vaccination, or live attenuated vaccines received with 30 days prior to the first vaccination or planned within 30 days of the first vaccination.
15. . Participated in an interventional clinical study within 28 days prior to the Screening Visit (Day 1) or plans to do so while participating in this study.
16. . Employee of the investigator or study site, with direct involvement in the proposed study or other studies under the direction of that investigator or study site, as well as family members of the employees or the investigator.

Minimum Eligible Age

18 Years

Maximum Eligible Age

100 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes