At a glance
ClinicalIndex Comparison RecordPhase 2Completed· 175 enrolled
Drug / intervention
QIV-HD by IM +2 morebiological
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.
Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.
Safety and Immunogenicity of High-Dose Quadrivalent Influenza Vaccine Administered by Intramuscular or Subcutaneous Route in Participants Aged 65 Years and Older in Japan
In Brief
A Phase 2 clinical trial evaluating QIV-HD by IM, QIV-SD by SC, and 1 other intervention for Influenza. Completed, enrolled 175 participants across 2 sites.
Detailed Summary
This phase I/II, randomized, modified double-blind, multi-center study assessed the safety and immunogenicity of a high-dose Quadrivalent influenza vaccine (QIV-HD) in older adults (greater than or equal to \[\>=\] 65 years).
Study Details
Timeline
Phase 2CompletedFinished
201820192020202120222023202420252026
First PostedJul 2017
Enrollment StartSep 2017
Primary CompletionNov 2017
TodayJul 2026
First PostedJul 28, 2017
Enrollment StartSep 15, 2017
Primary CompletionNov 28, 2017
TodayJul 2, 2026
Enrollment to primary: 2 monthsPosted 8.9 years ago
Interventions
QIV-HD by IMbiological
IM, injected into the upper arm (deltoid area)
QIV-SD by SCbiological
SC, injected into the upper arm (posterior region)
QIV-HD by SCbiological
SC, injection into the upper arm (posterior region)