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RecruitingNCT06180993NIRSE-GALUpdated Dec 26, 2023

Evaluation of the Effectiveness and Impact of Nirsevimab Administered as Routine Immunization

An observational study in RSV Infection, sponsored by Federico Martinón Torres. Recruiting at 1 site in Spain. Open to participants aged 1 Day to 24 Months. Per ClinicalTrials.gov, last updated 2023-12-26.

Sponsored by Federico Martinón Torres · Observational

From the registry’s dates

  • Primary completion was expected by Mar 2026, 6 months ago, but the record still lists the study as recruiting.
  • Started Sep 2023; still recruiting 3 years later.
Study type
Observational
Model
Other
Time perspective
Prospective
Enrollment
42,000
Ages
1 Day to 24 Months
Sex
All
01

Study summary

A longitudinal observational study based on routinely collected data on hospital and health care use for RSV infections will be undertaken. The Galician public health registries will be used for data collection including baseline information and follow-up data. Historical data will be retrieved for comparison purposes. The study aims to observe and analyze data from all the eligible children in Galicia for nirsevimab treatment. The number of eligible children is expected to be approximately 14,000 per each RSV season.

Read the detailed description

The purpose of this study is to evaluate the impact of nirsevimab in preventing RSV in healthy infants and high-risk children less than 24 months of age at the start of RSV season in Galicia.

The target population to receive nirsevimab is around 14,000 subjects including all healthy newborns during the RSV season, those \< 6 months at the start of the season, as well as those \< 24 months with comorbidities at the start of the season. Nirsevimab will be administered as part of the immunization program of Galicia and following the implementation plan designed by the Public Health authorities, using the vaccination facilities of the Galician system, i.e., hospitals and primary care centres. Appointments for administration and registration of administered doses will be performed as per usual immunization protocols. The expected coverage with nirsevimab in the target population is expected to be high (>80%).

RSV testing is routinely performed in the hospital and emergency department settings. The Galician Regional Surveillance Information System will retrieve all the existing information of the different electronic databases for new RSV cases detected in Galicia, including hospitalization, primary care, drug administration and immunization. RSV case ascertainment and classification will be per- formed by a specialized clinical team according to pre-established definitions.

02

Conditions studied

  • RSV Infection
03

In context

Respiratory Syncytial Virus Infections

293 studies on the registry are indexed under Respiratory Syncytial Virus Infections; 45 are open to participants now.

This study's planned enrollment of 42,000 is above the median of 346 across 73 observational studies indexed under Respiratory Syncytial Virus Infections.

Browse Respiratory Syncytial Virus Infections studies →

Lead sponsor

Federico Martinón Torres is the lead sponsor of 2 studies on the registry; 1 is open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
1 Day to 24 Months
Sexes eligible
All
Sampling method
Non-probability sample

Study population

All children born between April 1st, 2023 and March 1st, 2026, both dates included, in Galicia (North- west Spain)

Inclusion criteria

  • Subjects born in Galicia from April 1st, 2023 and March 1st, 2026

Exclusion criteria

Exclusion Criteria:

  • No specific criteria has been reported
05

Study design

Observational model
Other
Time perspective
Prospective
Enrollment
42,000 participants (estimated)
Patient registry
No

Groups and cohorts

  • At birth cohort

    Subjects born from September 25, 2023 to March 31 in each of the 3 RSV seasons under study 2023/2024, 2024/2025, 2025/2026

    Biological: Nirsevimab

  • Risk Cohort

    Subjects with risk factors born between 1 October 2021 and 31 March 2023

    Biological: Nirsevimab

  • Catch-up cohort

    Subjects born between 1 April and 24 September 2023

    Biological: Nirsevimab

Interventions

  • BiologicalNirsevimab

    Nirsevimab will be administered administered in a single dose at birth for birth cohort and at the beginning of the campaign for the other cohorts under study

    Also known as: Beyfortus

06

What researchers measure

Primary outcomes

  1. Incidence of RSV LRTI hospitalization through the RSV season

    Time frame: 8 months (from October to May)

07

Study locations

1 of 1 sites recruiting
  • Hospital Clínico Universitario de Santiago de Compostela
    Santiago de Compostela, A Coruña 15707, Spain
    Recruiting
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 26, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT06180993
Lead sponsor
Federico Martinón Torres
Responsible party
Federico Martinón Torres (Principal investigator, Hospital Clinico Universitario de Santiago) — Sponsor-investigator
First posted
Dec 26, 2023
Start date
Sep 25, 2023
Primary completion
Mar 31, 2026 (estimated)
Completion
Oct 31, 2026 (estimated)
Last update
Dec 26, 2023

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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