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Could a vaccine shield HIV-Exposed newborns? early trial launches

NCT ID NCT06613789

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Sep 18, 2026 · Updated 1 time

Summary

This early-stage trial will test a new HIV vaccine in 22 infants who were exposed to HIV during birth but are not infected. The vaccine is designed to train the immune system to recognize and fight HIV. The main goal is to see if the vaccine is safe and whether it triggers an immune response. The study is not yet recruiting.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
426c.Mod.Core-C4b vaccine with 3M-052-AF and alum adjuvants
What this could lead to
If successful, this could point toward a safe vaccine to protect HIV-exposed infants from infection.
What could go wrong
This is a very early Phase 1 trial with only 22 infants, so it is primarily checking safety, not effectiveness. The vaccine may not produce a strong immune response or could have side effects.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 1

The first testing in people. Mainly checks safety and dose, usually in a small group.

Participants

About 22 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Mar 2027

An estimate. Start dates often move.

Expected to finish

Jun 2027

An estimate. End dates often move.

Lead sponsor

A research network

The lead sponsor is a research network or cooperative group.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

Up to 7 days

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: Mother * Mother's age is at least 18 years and is willing and able to provide written informed consent for their and their infant's participation in this study * Mother is in the second or third trimester of singleton pregnancy, as determined by a clinical exam or sonography and reported menstrual history * Mother agrees to donate umbilical cord blood * Mother has a planned Caesarian delivery at Chris Hani Baragwanath Academic Hospital (Soweto) and plans to remain in the area after delivery and through study duration * Mother is determined by the site investigator to be in good overall health at the time of delivery based on medical history and physical exam * Mother has a documented CD4 count of more than 350 cells/mcL at screening * Mother has been on cART for at least 16 weeks prior to delivery and intends to continue with cART for the duration of breastfeeding * Mother has a viral load of less than 400 copies/mL between 2 weeks before and 7 days after delivery * Mother has access to the participating HVTN CRS and is willing to be followed for the planned duration of the study * Mother demonstrates understanding of this study and is able and willing to complete the informed consent process and delivery with verbal demonstration of understanding of all questionnaire items answered incorrectly * Mother agrees not to enroll either self or infant in another research study for the duration of the trial without prior approval of the HVTN 316 PSRT. * Mother has confirmed positive HIV-1 status documented by medical records at any time during or prior to screening, and confirmed by the HVTN CRS by serology Exclusion Criteria: Mother * Any World Health Organization (WHO) grade IV illness within 1 year prior to study enrollment, as determined by the history and physical examination and review of the medical record (if available). These include HIV wasting syndrome; PJP pneumonia; cerebral toxoplasmosis; extrapulmonary cryptococcosis; progressive multifocal leukoencephalopathy; any disseminated endemic mycosis (histoplasmosis); candidiasis of the esophagus, trachea, bronchi, or lung; disseminated atypical mycobacteria; non-typhoid salmonella septicemia; extrapulmonary tuberculosis; lymphoma; and Kaposi's sarcoma. * Prior participation in any HIV-1 vaccine or anti-HIV antibody-mediated prevention trial * Receipt of any investigational agent during this pregnancy * Receipt of blood products, immunoglobulin (Ig), or immunomodulating therapy within 45 days prior to, and the day of delivery * Any medical, psychiatric, occupational, or other condition that, in the judgment of the investigator, would interfere with or serve as a contraindication to protocol adherence, assessment of infant safety or reactogenicity, or a volunteer's ability to give informed consent * Any condition that places the newborn at higher risk of early-onset sepsis, such as concern for active maternal infection at delivery, as determined by local site investigators (eg, fever) * Detectable hepatitis B surface antigen (HBsAg) Inclusion Criteria: Infant * Born via Caesarean delivery to a pregnant woman living with HIV-1 who meets all maternal inclusion/exclusion criteria listed above * Estimated gestational age at birth is at least 37 weeks Note: If gestational age at birth is not documented in the infant's available birth records, study staff may assess gestational age at the earliest possible opportunity during the screening period and use this assessment for purposes of eligibility determination. * Weight at birth is at least 2.5 kg * Has initiated ARV prophylaxis consistent with current site-specific standard of care * Hemoglobin (HgB) more than 14.0 g/dL * White blood cell (WBC) count ≥ 7,000 cells/mm3 * Platelets more than 100,000 cells/mm3 * Alanine aminotransferase (ALT) less than 1.25 times upper limit of age-adjusted normal * Creatinine less than 1.1 times upper limit of age adjusted normal * Negative HIV-1 nucleic acid test (NAT) on specimen drawn within 72 hours of birth * Written informed consent provided by mother * Age is equal to or less than 7 days Exclusion Criteria: Infant * Any clinically significant congenital anomaly/birth defect * Documented or suspected serious medical illness, infection, clinically significant finding from physical examination, or immediate life-threatening condition, including requirement for ongoing supplemental oxygen, as judged by the examining clinician * Receipt of or anticipated need for blood products, immunoglobulin, or immunosuppressive therapy. This includes infants who require hepatitis B immunoglobulin (HBIG), but it does not require exclusion of infants who receive hepatitis B vaccine in the newborn period. * Receipt of any other investigational product

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Soweto HVTN CRS

    Soweto, Gauteng, 1862, South Africa

More trials for these conditions

Other studies related to the condition(s) this trial covers.