A comparative use-result survey for evaluation the effectiveness of FluMist nasal spray

A comparative use-result survey by test-negative case-control study for evaluation the effectiveness of FluMist intranasal spray in preventing influenza over time - A comparative use-result survey by test-negative case-control study for evaluation the effectiveness of FluMist intranasal spray in preventing influenza over time

Status

Recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-jRCT2031240116

Enrollment

9000

Registered

2024-05-27

Start date

2025-01-01

Completion date

Unknown

Last updated

2026-09-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Influenza virus infection

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1) Patients aged 2 years or older and younger than 19 years 2) Patients who visited the hospital within 6 hours to 7 days after developing a fever of 37.8 degree Celsius or higher 3) Patients who developed any of the clinical symptoms of cough, sore throat, nasal discharge, or dyspnea before visiting the hospital. 4) Patients giving written consent from the study subjects or their guardians.

Exclusion criteria

Exclusion criteria: 1) Patients with a history of anaphylaxis after receiving influenza vaccine 2) Patients who have already received anti-influenza drugs for this influenza-like illness 3) Patients who received prophylactic anti-influenza drugs for this influenza-like illness 4) Patients who developed this influenza-like illness during hospitalization 5) Patients admitted to facilities such as infant homes or children's homes 6) Patients residing outside the prefecture where the medical institution participating in the study is located

Design outcomes

Primary

Measure	Time frame
Vaccine effectiveness of FluMist nasal spray based on those who have not been vaccinated against influenza	—

Contacts

Public ContactGPSP Contact

Daiichi Sankyo Co.,Ltd.

contact_gpsp_jp@daiichisankyo.com+81-3-6225-1059

Outcome results