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Completed Phase 4 Interventional Accepts healthy volunteers Results available

Randomized Trial of High Dose Influenza Vaccine in Long Term Care Setting

ClinicalTrials.gov ID: NCT01654224

Public ClinicalTrials.gov record NCT01654224. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Nov 6, 2026, 7:00 PM EST

All trial information on this site comes from the official ClinicalTrials.gov public API (clinicaltrials.gov/api/v2), run by the U.S. National Library of Medicine. We only display that public information; we do not add opinions, endorsements, or any other intent. Always review the official ClinicalTrials.gov record for the latest information.

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

The purpose of the study is to compare the performance of two currently available influenza (flu) vaccines. This study will try and determine if the high dose flu vaccine provides protection that is the same or better than that of regular dose flu vaccine. Both the regular dose and the high dose flu vaccines are approved by the FDA for use in older adults.

Study identification

NCT ID
NCT01654224
Recruitment status
Completed
Study type
Interventional
Phase
Phase 4
Lead sponsor
University of Pittsburgh
Other
Enrollment
205 participants

Conditions and interventions

Eligibility (public fields only)

Age range
65 Years and older
Sex
All
Healthy volunteers
Accepts healthy volunteers

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Nov 2011 (Type not available)
Primary completion
Jun 2014 (Actual)
Completion
Jun 2014 (Actual)
Last update posted
Jul 2, 2017

2011 – 2014

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
University of Pittsburgh, Division of Geriatric Medicine Pittsburgh Pennsylvania 15213 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT01654224, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Jul 2, 2017 · Synced Nov 6, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT01654224 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →