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Study of HIV-Exposed Pregnancies and Transplacental Antibody Delivery Following RSVpreF (SHIELD-RSV)

3. juli 2026 opdateret af: Jeffrey Wong, University of British Columbia

Study of HIV-Exposed Pregnancies and Transplacental Antibody Delivery Following RSVpreF (SHIELD-RSV)

Respiratory syncytial virus (RSV) is the leading cause of hospitalization in young infants in Canada. While most babies recover, RSV can cause severe breathing problems and place major stress on families and the health system. Infants born to pregnant women and people with HIV, even if they do not acquire the virus, face higher risks of RSV illness. This is partly because HIV increases the chance of preterm birth and can reduce the amount of protective antibodies passed to the baby during pregnancy.

Two new tools now exist to prevent RSV. One is a vaccine given in late pregnancy (RSVpreF), which boosts antibodies that cross the placenta and protect the baby at birth. The other is a long-lasting antibody (nirsevimab) given directly to infants after delivery. Both work well in the general population, but pregnant people living with HIV were excluded from the original studies. Health care providers therefore do not know if perinatal vaccination provides enough protection for these babies.

This study will follow 20 pregnant women/people with HIV at BC Women's Hospital who receive the RSVpreF vaccine. Antibody levels will be measured before and after vaccination from the pregnant recipient, and in infant blood sample, to see how well protection is transferred to infants. We will also assess vaccine safety, birth outcomes, and parental views on RSV immunization. Findings will guide Canadian policies to ensure that all infants, including those exposed to HIV, have equitable access to RSV protection.

Studieoversigt

Status

Ikke rekrutterer endnu

Betingelser

Intervention / Behandling

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

20

Fase

  • Fase 4

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ingen

Beskrivelse

Inclusion Criteria:

  1. Pregnant women/people aged ≥19 years
  2. Confirmed diagnosis of HIV
  3. Gestational age between 28 and 34 weeks at enrollment (to allow scheduling of vaccination at 32-36 weeks)
  4. Able to provide informed consent

Exclusion Criteria:

  1. Contraindications to RSVpreF vaccine per product monograph
  2. History of severe allergic reaction to any vaccine component
  3. Planned delivery outside of British Columbia
  4. Received RSVpreF in current or previous pregnancy
  5. Received immunoglobulins (except Rh (D) immuneglobulin) within 1 year of enrollment
  6. Unable to complete in-person follow-up for infant at the Oak Tree Clinic

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Forebyggelse
  • Tildeling: N/A
  • Interventionel model: Enkelt gruppeopgave
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Pregnant people with HIV

We plan to recruit 20 pregnant women/people with HIV receiving antenatal care in British Columbia. Recruitment site will be the Oak Tree Clinic at BC Women's Hospital, which is the provincial referral centre for all pregnant women/people with HIV in British Columbia.

Inclusion criteria:

  • Pregnant women/people aged ≥18 years
  • Confirmed HIV infection
  • Gestational age between 28 and 34 weeks at enrollment (to allow scheduling of vaccination at 32-36 weeks)
  • Able to provide informed consent in English
Medicin: RSVpreF
Participants will receive a single dose of the RSVpreF vaccine (Abrysvo®) intramuscularly between 32+0 and 36+6 weeks of gestation, consistent with Health Canada approval.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Immunogenicity
Tidsramme: Within 10 weeks
To measure the RSV neutralizing antibody geometric mean titer and geometric mean ratio in twenty pregnant women/people with HIV at pre-vaccination (32-36 weeks) and post-vaccination (4 weeks post-vaccination) from RSVpreF
Within 10 weeks
Transplacental Antibody
Tidsramme: 8-10 weeks
To measure the RSV neutralizing antibody geometric mean titer and geometric mean ratio through infant dried blood spots after birth among twenty infants born to pregnant people with HIV immunized with RSVpreF
8-10 weeks

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Safety profile and reactogenicity
Tidsramme: 8-10 weeks
Among pregnant women/people with HIV vaccinated with RSVpreF, proportion of individuals with fatigue, headache, and fever will be determined
8-10 weeks
Pregnancy Factors
Tidsramme: 8-10 weeks
Among pregnant women/people with HIV vaccinated with RSVpreF, gestational age at delivery and rate of adverse birth outcomes (e.g., rate of preterm birth, low birth weight) will be determined as percentage of cohort.
8-10 weeks
Acceptability
Tidsramme: 4 weeks
To understand the acceptability of RSV immunization strategies among pregnant women/people with HIV, presented as descriptive statistics based on proportion who would accept repeat vaccination and/or recommend to others
4 weeks

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

University of British Columbia

Samarbejdspartnere

Women's Health Research Institute of British Columbia

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Anslået)

1. september 2026

Primær færdiggørelse (Anslået)

1. september 2027

Studieafslutning (Anslået)

1. marts 2028

Datoer for studieregistrering

Først indsendt

22. juni 2026

Først indsendt, der opfyldte QC-kriterier

3. juli 2026

Først opslået (Faktiske)

9. juli 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

9. juli 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

3. juli 2026

Sidst verificeret

1. juli 2026

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Andre undersøgelses-id-numre

  • H26-01191

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

INGEN

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

Ja

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

produkt fremstillet i og eksporteret fra U.S.A.

Ja

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

Kliniske forsøg med HIV

Kliniske forsøg med RSVpreF

Søg i lignende forsøg

Sponsorer og samarbejdspartnere

Medicinske tilstande

Narkotikainterventioner

CROs by country

CROs in Bosnia & Herzegovina

Betingelser

Sjældne sygdomme

Narkotikainterventioner

Kosttilskud

Sponsor / samarbejdspartnere

Placeringer

3
Abonner