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A Study to Learn About the Vaccine RSVpreF In Pregnant Participants With HIV and Their Infants

Phase 3
Active, not recruiting
Conditions
Respiratory Syncytial Virus
Interventions
Biological: Placebp
Registration Number
NCT06325657
Lead Sponsor
Pfizer
Brief Summary

The purpose of the study is to learn about the safety and immune activity of the RSVpreF vaccine. It will be studied in infants born to mothers living with HIV. These infants may have higher chances of getting sick or dying due to RSV infection. Respiratory Syncytial Virus (RSV) is a common type of virus (germ) that can cause severe illness (airway diseases), where medical help is needed. Vaccines help your body make antibodies which help fight against diseases. The antibodies are substances your body uses to fight off an infection. The antibodies can be passed to the infant through the placenta of the mother.

The study will look at the safety, tolerability, and immune activity in mothers and their infants.

This study is seeking pregnant women who are:

* Less than or equal to 49 years old and have HIV (Human immunodeficiency virus -

* Receiving standard medical care during the pregnancy

* Do not have syphilis (bacterial sexually transmitted disease), Hepatitis B Virus ((HBV) liver infection), Tuberculosis ((TB) bacterial lung infection).

* Have been on stable (anti-retroviral) HIV treatment for more than or equal to 90 days.

* agree to be present for all study visits, procedures, and blood draws.

Participants will either receive:

* RSVpreF vaccine

* A placebo. A placebo does not have any medicine it but looks just like the study vaccine.

Pregnant participants will be involved in the study from:

* consent during their current pregnancy, and

* for 6 months after delivery of their baby (around 10 months in total). Pregnant participants will have at least 5 planned visits in this study. Infant participants: All eligible babies born to enrolled mothers will be followed up from birth for up to 6 months. Infant participants will have at least 3 study visits, with some site visits allowed to happen via home visits or over the telephone.

Detailed Description

Not available

Recruitment & Eligibility

Status
ACTIVE_NOT_RECRUITING
Sex
All
Target Recruitment
343
Inclusion Criteria

Not provided

Exclusion Criteria

Not provided

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
RSVpreF vaccineRSVpreF vaccineRSV vaccine (RSVpreF)
PlaceboPlacebpPlacebo
Primary Outcome Measures
NameTimeMethod
Infant Participants Primary Safety - The proportion of participants reporting Specific Birth OutcomesBirth

Describe specific birth outcomes for infant participants

Maternal Participants Primary Safety - The proportion of participants reporting Adverse Event of Special Interests (AESIs)Throughout the study duration (approximately 10 months)

AESIs include preterm delivery, diagnosis of GB syndrome, Diagnosis of Acute polyneuropathy without underlying etiology, hypertensive disorders of pregnancy, atrial fibrillation.

Infant Participants Primary Safety - The proportion of participants reporting Adverse Events (AEs)Through 1 month following birth

An AE is any untoward medical occurrence in a participant who received investigational product without regard to possibility of causal relationship. AEs include both serious and non-serious adverse events.

Maternal Participants Primary Safety - The proportion of participants reporting systemic reactionsWithin 7 days following study administration intervention

Systemic Reactions: fever, fatigue, headache, nausea, muscle pain, joint pain, vomiting, diarrhea and any systemic event recorded based on e-diary and participant reported reactogenicity events.

Maternal Participants Primary Safety - The proportion of participants reporting local reactionsWithin 7 days following study administration intervention

Local reactions included pain at injection site, redness and swelling recorded based on e-diary and participant reported reactogenicity events.

Maternal Participants Primary Safety - The proportion of participants reporting Adverse Events (AEs)Through 1 month following study administration intervention

An adverse event was any untoward medical occurrence in a participant who received investigational product without regard to possibility of causal relationship. Adverse events included both serious and non-serious adverse events.

Maternal Participants Primary Safety - The proportion of participants reporting Serious Adverse Events (SAEs)Throughout the study duration (approximately 10 months)

SAE is an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly.

Infant Participants Primary Safety - The proportion of participants reporting SAEs and Newly Diagnosed Chronic Medical Conditions (NDCMCs)Throughout the study duration (approximately 6 months)

SAE is an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly.

NDCMC is defined as a disease or medical condition, not previously identified, that is expected to be persistent or otherwise long-lasting in its effects.

Secondary Outcome Measures
NameTimeMethod
Maternal Participants: Secondary Immunogenicity - GMT of NTs for RSV A and RSV BBefore vaccination and at the delivery visit

GMT of NTs for RSV A and RSV B before vaccination and at the delivery visit

Maternal Participants: Secondary Immunogenicity - GMFR of NTs for RSV A and RSV BFrom before vaccination and to the delivery visit

GMFR of NTs for RSV A and RSV B from before vaccination to post vaccination blood-sampling visit

Trial Locations

Locations (14)

Setshaba Research Centre

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Tshwane, Gauteng, South Africa

Synergy Biomed Research Institute

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East London, Eastern CAPE, South Africa

Josha Research

πŸ‡ΏπŸ‡¦

Bloemfontein, FREE State, South Africa

Worthwhile Clinical Trials

πŸ‡ΏπŸ‡¦

Benoni, Gauteng, South Africa

REIMED Reiger Park

πŸ‡ΏπŸ‡¦

Boksburg, Gauteng, South Africa

Wits RHI

πŸ‡ΏπŸ‡¦

Johannesburg, Gauteng, South Africa

University of Witwatersrand (WITS) - Vaccines and Infectious Diseases Analytics (VIDA)

πŸ‡ΏπŸ‡¦

Johannesburg, Gauteng, South Africa

Wits VIDA Nkanyezi Research Unit

πŸ‡ΏπŸ‡¦

Johannesburg, Gauteng, South Africa

Botho Ke Bontle Health Services

πŸ‡ΏπŸ‡¦

Pretoria, Gauteng, South Africa

Qhakaza Mbokodo Research Clinic

πŸ‡ΏπŸ‡¦

Ladysmith, Kwazulu-natal, South Africa

Gole Biomed Research Centre

πŸ‡ΏπŸ‡¦

Polokwane, Limpopo, South Africa

MRC Unit on Child And Adolescent Health

πŸ‡ΏπŸ‡¦

Cape Town, Western CAPE, South Africa

Gugulethu Green Clinic

πŸ‡ΏπŸ‡¦

Cape Town, Western CAPE, South Africa

FAMCRU - Worcester

πŸ‡ΏπŸ‡¦

Worcester, Western CAPE, South Africa

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