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Healthy VolunteersNCT01191853

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

An observational study of Healthy Volunteers and Influenza, run by National Heart, Lung, and Blood Institute (NHLBI) at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Background: Seasonal influenza is a major health problem whose impact is typically reduced by vaccination. The H1N1 (swine flu) influenza virus is an emerging pathogen that has the potential to cause devastating illness and even death in the coming months. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Healthy Volunteers, Influenza
Type of treatment
Vaccines
How many people
203 participants
Where
1 siteUnited States
Study dates
18 Sep 2009to not given
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Healthy NIH Volunteers

Who may be able to join

  • NIH employees scheduled to receive the Influenza and H1N1 vaccines through OMS.
  • Health status confirmed by History, Physical Exam and blood work through the CHI Screening Protocol.
  • Age 18 years and older (no upper limit).
  • Able to comprehend the investigational nature of the protocol and provide informed consent.

Who cannot join

  • Recipient of another vaccine or immune modulating drug within 6 months prior to study entry.
  • Severe allergies to eggs or their products.
  • Prior severe reactions to vaccines.
  • Participation on any blood collection or blood donation procedure during study participation.
  • Current pregnancy (women of child bearing potential must have a negative serum pregnancy test done on screening within 1 week of protocol accrual).

Trial locations and contacts

1 site in 1 country.

United States1 site
  • National Institutes of Health Clinical Center

    Bethesda, Maryland, 20892

Other trials in United States

About this study

Official title: Cellular and Molecular Characterization of the Immune Response in Healthy NIH Employees at Baseline, and After Immunization With the H1N1 or Seasonal Influenza Vaccines

Background:

  • Seasonal influenza is a major health problem whose impact is typically reduced by vaccination. The H1N1 (swine flu) influenza virus is an emerging pathogen that has the potential to cause devastating illness and even death in the coming months. Currently, there are limited data on the cellular and molecular immune responses in adult recipients of either the seasonal or the H1N1 influenza vaccines.
Read more

Objectives:

  • To obtain blood and nasal wash samples and perform laboratory studies to characterize the immune response in healthy adult volunteers at baseline and after immunization with the seasonal or H1N1 influenza vaccines.

Eligibility:

  • Adult employees at least 18 years of age of the NIH Clinical Center who are deemed healthy by a brief medical history and physical examination and routine blood testing.

Design:

  • Before the start of the influenza season, volunteers will receive either the seasonal influenza vaccine or the H1N1 vaccine when it becomes available. If the H1N1 vaccine is available at the start of the season, volunteers will receive both the seasonal vaccine and the H1N1 vaccine.
  • Blood will be drawn over an 8-week period. Volunteers must not eat anything for 8 hours prior to the blood draw. The sequence of the blood draws is as follows: 2 weeks before vaccination; right before vaccination; and 1, 7, 14, 28, and 60 days after vaccination.
  • Two to four nasal washings will be collected by a nurse before volunteers receive the vaccination(s) and 28 days after the vaccination.
  • Prevaccine and postvaccine blood and nasal wash samples will be compared to determine volunteers immune responses.
  • Research samples will be stored indefinitely and will be used strictly for laboratory experiments.
Read the detailed description

Seasonal influenza is a major health problem whose impact is typically reduced by vaccination. The H1N1 (swine flu) influenza virus is an emerging pathogen which has the potential to cause devastating morbidity and mortality in the coming months. In June 2009, the World Health Organization declared the H1N1 outbreak to be a global pandemic. At present there are limited data on the cellular and molecular immune responses in adult recipients of either the seasonal or the H1N1 influenza vaccines.

Therefore, the Center for Human Immunology, Autoimmunity, and Inflammatory Diseases proposes this protocol designed to obtain blood from healthy adult subjects (NIH employees) prior to vaccination and then at various time points after receiving the FDA-licensed seasonal and H1N1 influenza vaccine. These samples will be used to perform a comprehensive and detailed analysis of the immune system at baseline and in response to vaccination. To our knowledge, this protocol will be the first study to characterize the human cellular and molecular immune system parameters, or immunome, in a large number of healthy adults (NIH employees). This information may be useful in designing newer, more effective vaccines to prevent the spread of H1N1 influenza.

The primary objective is to perform laboratory studies to characterize the immune response in healthy adult volunteers at baseline and after immunization with the seasonal or H1N1 influenza vaccines. Primary endpoint is the results of the research laboratory assessments. As samples will be stored indefinitely, the time frame for primary endpoint is indefinite.

Keywords
Post Swine Flu Blood Samples, Biologic Sample Collection, Laboratory Research Samples, Natural History, Healthy Volunteer, HV
Medical subject headings
Influenza, Human

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT01191853
Study groupRoleWhat they receive
Healthy volunteersHealthy volunteers will have blood drawn before and after seasonal flu vaccination

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Analysis of immune response after vaccine

    Immune response to vaccine

    Measured: continuous

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted31 Aug 2010 (estimated)
  2. Study start18 Sep 2009

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
203 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01191853
Sponsor's protocol ID
090239
Other IDs
09-H-0239
Status last verified
16 Sep 2026
First submitted
28 Aug 2010
Last updated
29 Oct 2026
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Thompson WW, Shay DK, Weintraub E, Brammer L, Cox N, Anderson LJ, Fukuda K. Mortality associated with influenza and respiratory syncytial virus in the United States. JAMA. 2003 Jan 8;289(2):179-86. doi: 10.1001/jama.289.2.179.

    PubMed 12517228
  • Zimmer SM, Burke DS. Historical perspective--Emergence of influenza A (H1N1) viruses. N Engl J Med. 2009 Jul 16;361(3):279-85. doi: 10.1056/NEJMra0904322. Epub 2009 Jun 29. No abstract available.

    PubMed 19564632
  • Taubenberger JK, Morens DM. 1918 Influenza: the mother of all pandemics. Emerg Infect Dis. 2006 Jan;12(1):15-22. doi: 10.3201/eid1201.050979.

    PubMed 16494711

Questions about this trial

What is this clinical trial studying?

An observational study of Healthy Volunteers and Influenza, run by National Heart, Lung, and Blood Institute (NHLBI) at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 29 Oct 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Analysis of immune response after vaccine (time frame: continuous). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01191853, which also lists 3 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 29 Oct 2026.

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