Effectiveness And Impact Of Nirsevimab In Chile (NIRSE-CL)

ConditionRSV
Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
AgeUp to 4
SponsorInstituto Sistemas Complejos de Ingeniería

About this trial

The Nirse-CL study is a collaborative effort between the Ministry of Health of Chile, Instituto Sistemas Complejos de Ingeniería (ISCI), and the Faculty of Medicine of the University of Chile. The primary aim is to determine the effectiveness of the monoclonal antibody nirsevimab in preventing RSV infection in infants based on the integrated analysis of several national databases before, during, and after the implementation of a universal immunization program. The impact of the program on RSV-related health outcomes will also be determined.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Subjects born between October 1st, 2023, to September 31st, 2024.

Subjects born with 29 weeks of gestational age (wga) or less who were born between July 1st, 2023 and October 1st, 2023

Subjects born with Bronchopulmonary Dysplasia (BPD), 32 or less wga and/or a birth weight less than 1·5 kgs born between April 1st, 2023 and October 1st, 2023.

Disqualifiers

No specific criteria has been reported

Trial population

All infants born in Chile between October 1st, 2023, to September 31st, 2024 (approximately 160.000), and all high-risk infants born between July 1st, 2023, and October 1st, 2023 (approximately \<1.000).

Trial design

Design model

Cohort

Time perspective

Retrospective

Treatments tested in this trial

  • Nirsevimab

    Biological/Vaccine

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

Treatment groups

160,000 Participants
are divided into 3 treatment groups
Group A: Newborns1 intervention
Group B: Catch-up1 intervention
Group C: High-risk1 intervention

Trial outcomes

Primary outcomes

1

LRTI

Number and incidence of lower-tract respiratory infections hospitalizations (LRTI) attributed to RSV in the pediatric intensive care units (PICU) at a nationwide and regional level.

Time frame
from April 2024 to October 2024

Secondary outcomes

Other outcomes

Sponsors and contacts

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