NCT02511002
Long-term Observation of Hemagglutinin and Neuraminidase Inhibition Antibody Titers After Influenza Challenge
Enrolling by Invitation
Not specifiedAges 18+ObservationalNational Institute of Allergy and Infectious Diseases (NIAID)Government-funded
~200 participants
Updated 2026-07-17 on ClinicalTrials.gov
At a glance
Recruiting sites
0 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
To characterize the timing of peak antibody response to hemagglutinin (HA) and neuraminidase (NA) post influenza challenge or after natural infection To evaluate the long-term variability of hemagglutinin inhibition (HAI) and neuraminidase inhib...
Measured over 2 years
Conditions
Where it's being run
1 sites across 1 statesMaryland1
Study leadership
- Alison Han, M.D. · PRINCIPAL_INVESTIGATOR · National Institute of Allergy and Infectious Diseases (NIAID)
Who to contact
This trial hasn't published a contact. View it on ClinicalTrials.gov
What this trial measures
- To characterize the timing of peak antibody response to hemagglutinin (HA) and neuraminidase (NA) post influenza challenge or after natural infection To evaluate the long-term variability of hemagglutinin inhibition (HAI) and neuraminidase inhib...2 years
Trend of HAI titer over multiple time points Trend of NAI titer over multiple time points