A Clinical Study To investigate Incidence Rate of Seasonal Influenza

JRCT ID: jRCT1030240609

Registered date:15/01/2025

Basic Information

• Recruitment status: Pending
• Health condition(s) or Problem(s) studied: Seasonal influenza
• Date of first enrollment: 28/01/2025
• Target sample size: 6000
• Study type: Observational

Outcome(s)

Primary Outcome

1) The proportion of participants reporting seasonal influenza cases
2) Strains of influenza virus in participants reporting seasonal influenza cases

Key inclusion & exclusion criteria

• Age minimum: Not applicable
• Age maximum: Not applicable
• Gender: Both

Include criteria

1) Has provided written consent to research participation by the participant or via the legal representative.
2) Is not willing to receive a seasonal influenza vaccine after the date of consent until the end of research observation period.
3) Is able to visit the research institution upon report and undergo the tests specified in the protocol when seasonal influenza-like symptoms are observed during the research observation period (report by a legal representative is also acceptable).

Exclude criteria

1) Is received a seasonal influenza vaccine from 6 months before the start of resarch observation period to the date of consent in each season.
2) Has a medical history of a seasonal influenza from 6 months before the start of resarch observation period to the date of consent in each season.

Related Information

• Primary Sponsor: Inoguchi Akihiro