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RSV in infants: new study aims to unlock asthma mystery

NCT ID NCT07653347

Knowledge-focused Sponsor: University of British Columbia Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study follows 300 infants to understand how catching RSV very early (before 4 months old) versus later (after 6-9 months) affects their immune system and long-term health. Researchers will measure antibody responses and track asthma-like symptoms. The goal is to learn why early RSV infection is linked to more severe illness and higher asthma risk.

What this could mean

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

What this could lead to
If successful, this study could help explain why some infants develop asthma after RSV and guide future prevention strategies.
What could go wrong
This is an observational study, not a treatment trial. It will not directly test any drug or vaccine, so it cannot provide immediate health benefits.

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.

Participants

About 300 people

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

Started

Jan 2026

Expected to finish

Dec 2029

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

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

Who is studied

Birthing parents who have a due date or delivery date in April, May or June 2026 (spring group/cohort) or September, October or November 2026 (fall group/cohort) with follow-up of the birthing parent and child during the 2026-2027, 2027-2028 and 2028-2029 RSV seasons. Children will be followed up to 3 years of age. The cohort will consist of 300 birthing parent-child pairs, with 150 in the spring cohort and 150 in the fall cohort. Birthing parents are recruited during antenatal care or shortly after delivery from the ultrasound clinic or delivery wards at BC Women's Hospital, patient lists from local maternity wards within the Vancouver Coastal Health Authority or advertisements at local prenatal care centres (obstetrician, physician and midwife clinics), community centres or on social media.

Ages

Up to 6 months

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: Birthing parent/child pairs with a delivery date in April, May or June or September, October or November who delivered or are planning to deliver at BC Women's Hospital + Health Centre or a nearby, local hospital. Exclusion Criteria: Severe pregnancy-related complications or chronic medical conditions in the children making them automatically eligible to receiving RSV immunoprophylaxis in British Columbia (e.g. infants born prematurely \< 35 weeks of gestation, or with chronic medical conditions).

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Conditions

The condition(s) this trial relates to.

childhood onset asthma respiratory syncytial virus infectious disease

As listed by the trial registrant

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

Asthma childhood Respiratory synctial virus

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

  • BC Women's Hospital and Health Centre

    RECRUITING

    Vancouver, British Columbia, V6H 3N1, Canada

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