# Cellular and Molecular Characterization of the Immune Response in Healthy NIH Employees atBaseline, and After Immunization With the H1N1 or Seasonal Influenza Vaccines

> **NCT01191853** · — · COMPLETED · sponsor: **National Heart, Lung, and Blood Institute (NHLBI)** · enrollment: 203 (actual)

## Conditions studied

- Healthy Volunteers
- Influenza

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT01191853
- **Lead sponsor:** National Heart, Lung, and Blood Institute (NHLBI)
- **Sponsor class:** NIH
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2009-09-18
- **Primary completion:** —
- **Final completion:** —
- **Target enrollment:** 203 (ACTUAL)
- **Last updated:** 2026-04-08


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01191853

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01191853, "Cellular and Molecular Characterization of the Immune Response in Healthy NIH Employees atBaseline, and After Immunization With the H1N1 or Seasonal Influenza Vaccines". Retrieved via AI Analytics 2026-06-09 from https://api.ai-analytics.org/clinical/NCT01191853. Licensed CC0.

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*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*