B. Infantis Supplementation to Improve Immunity in Infants Exposed to HIV

NCT ID: NCT05923333

Last Updated: 2024-08-22

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

RECRUITING

Clinical Phase

NA

Total Enrollment

200 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-08-11

Study Completion Date

2027-06-30

Brief Summary

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The primary objectives of this study are to evaluate the effect of early-life B. infantis Rosell®-33 supplementation in infants exposed to HIV on:

* gut microbiome composition and diversity at 4 weeks of life
* markers of intestinal inflammation and microbial translocation at 4 weeks of life
* Th1 cytokine responses to BCG at 7 weeks and 36 weeks of life

The secondary objectives include to evaluate the effect of B. infantis Rosell®-33 supplementation on:

* longitudinal succession of the gut microbiota composition, diversity and function
* relative and absolute abundance of B. infantis in infant stool during the first 36 weeks of life
* stool metabolome
* T cell subset ontogeny during the first 9 months of life.

Exploratory objectives are to evaluate whether B. infantis Rosell®-33 supplementation improves:

* infant growth
* all-cause morbidity
* neurodevelopment during the first 9 months of life
* antibody responses to early childhood vaccines

Detailed Description

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Infants who are born to mothers with HIV (exposed but uninfected; iHEU) are at higher risk of morbidity and display multiple immune alterations compared to infants who are HIV-unexposed (iHU). Easily implementable strategies to improve immunity of iHEU, and possibly subsequent health outcomes, are needed. iHEU have altered gut microbiome composition and bifidobacterial depletion, and relative abundance of Bifidobacterium infantis has been associated with immune ontogeny, including humoral and cellular vaccine responses. Therefore, a randomized trial of B. infantis Rosell®-33 versus placebo given during the first month of life in South African iHEU will be conducted.

This is a parallel, randomised, controlled study. Two-hundred breastfed iHEU will be enrolled from the Khayelitsha Site B Midwife Obstetric Unit in Cape Town, South Africa and 1:1 randomised to receive 8 x109 CFU B. infantis Rosell®-33 daily or placebo for the first 4 weeks of life, starting on day 1-3 of life. Infants will be followed over 36 weeks with extensive collection of meta-data and samples.

Conditions

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Hiv Vaccine Reaction Microbial Colonization Infant Development

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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B. infantis Rosell®-33

Participants will receive 8 x 109 CFU B. infantis Rosell®-33 per dose (single microbial active ingredient) and carrier material (maltodextrin) for 28 days from day 1-3 of life.

Group Type ACTIVE_COMPARATOR

B. infantis Rosell®-33

Intervention Type DIETARY_SUPPLEMENT

B. infantis Rosell®-33 + maltodextrin

Placebo

Participants will receive placebo (containing all materials besides B. infantis Rosell®-33) for 28 days from day 1-3 of life.

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DIETARY_SUPPLEMENT

Maltodextrin

Interventions

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B. infantis Rosell®-33

B. infantis Rosell®-33 + maltodextrin

Intervention Type DIETARY_SUPPLEMENT

Placebo

Maltodextrin

Intervention Type DIETARY_SUPPLEMENT

Eligibility Criteria

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Inclusion Criteria

* Willing and able to provide signed and dated informed consent form
* 18 years of age or older
* Documented HIV seropositive
* Antiretroviral therapy initiated before the third trimester of pregnancy
* Planning on exclusively breastfeeding the infant for the first 6 months of life


* Documented HIV seronegative at birth
* Born at term (completed at least 37 weeks of gestation)
* Birth weight \>2.4kgs

Exclusion Criteria

* Severe illnesses, e.g. Sepsis
* current TB or known household TB contact
* Chronic disorder or medications (other than antiretrovirals and cotrimoxazole prophylaxis) that in the opinion of the investigator would alter immunity
* Pregnancy or delivery complications including birth asphyxia, seizures, sepsis, major congenital anomalies or congenital infections
* Known contraindications to components of the interventional products
* Taking additional probiotics or prebiotics
* Any condition that in the opinion of the investigator would make participation in the trial unsafe
Minimum Eligible Age

0 Days

Maximum Eligible Age

50 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Seattle Children's Hospital

OTHER

Sponsor Role collaborator

University of Stellenbosch

OTHER

Sponsor Role collaborator

Institute for Systems Biology

OTHER

Sponsor Role collaborator

Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)

NIH

Sponsor Role collaborator

University of Washington

OTHER

Sponsor Role collaborator

University of Cape Town

OTHER

Sponsor Role lead

Responsible Party

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Anna-Ursula Happel

Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Heather Jaspan, MD PHD

Role: PRINCIPAL_INVESTIGATOR

Seattle Children's Hospital

Locations

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Khayelitsha Site B Midwife Obstetric Unit

Cape Town, , South Africa

Site Status RECRUITING

Countries

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South Africa

Central Contacts

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Heather Jaspan, MD PHD

Role: CONTACT

2068543336

Anna-Ursula Happel, PhD

Role: CONTACT

+ 27 21 406 6823

Facility Contacts

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Busi Tyhenge

Role: primary

References

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Happel AU, Rametse L, Perumaul B, Diener C, Gibbons SM, Nyangahu DD, Donald KA, Gray C, Jaspan HB. Bifidobacterium infantis supplementation versus placebo in early life to improve immunity in infants exposed to HIV: a protocol for a randomized trial. BMC Complement Med Ther. 2023 Oct 18;23(1):367. doi: 10.1186/s12906-023-04208-0.

Reference Type DERIVED
PMID: 37853370 (View on PubMed)

Other Identifiers

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R01HD109089

Identifier Type: NIH

Identifier Source: secondary_id

View Link

PACTR202301748714019

Identifier Type: REGISTRY

Identifier Source: secondary_id

697/2022

Identifier Type: -

Identifier Source: org_study_id

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