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A Clinical Study To investigate Incidence Rate of Seasonal Influenza

A Clinical Study To investigate Incidence Rate of Seasonal Influenza

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
JPRN
Registry ID
JPRN-jRCT1030240609
Enrollment
6000
Registered
2025-01-15
Start date
2025-02-04
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

Seasonal influenza

Interventions

None listed

Sponsors

Inoguchi Akihiro
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion 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).

Exclusion criteria

Exclusion 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.

Design outcomes

Primary

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

Contacts

Public ContactContact for Clinical Trial Information

Daiichi Sankyo Co., Ltd.

dsclinicaltrial_jp@daiichisankyo.com+81-3-6225-1111

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026