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Completed Phase 2 Interventional Accepts healthy volunteers Results available

A Clinical Trial of CSL's 2009 H1N1 Influenza Vaccine (CSL425) in Healthy Adults in the USA

ClinicalTrials.gov ID: NCT00958126

Public ClinicalTrials.gov record NCT00958126. 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 Jul 23, 2026, 11:20 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Phase II, Multicenter, Randomized, Observer-Blind, Placebo-Controlled Study to Evaluate the Immunogenicity, Safety and Tolerability of CSL's 2009 H1N1 Influenza Vaccine (CSL425) in Healthy Adults Aged 18 Years and Older

Study identification

NCT ID
NCT00958126
Recruitment status
Completed
Study type
Interventional
Phase
Phase 2
Lead sponsor
Seqirus
Industry
Enrollment
1,313 participants

Conditions and interventions

Conditions

Interventions

  • CSL425 Biological
  • Placebo Biological

Biological

Eligibility (public fields only)

Age range
18 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
Jul 31, 2009
Primary completion
Oct 31, 2009
Completion
Mar 31, 2010
Last update posted
Nov 20, 2017

2009 – 2010

United States locations

U.S. sites
11
U.S. states
9
U.S. cities
11
Facility City State ZIP Site status
Study Site Huntsville Alabama 35802
Study Site San Diego California 92108
Study Site Melbourne Florida 32935
Study Site Peoria Illinois 61602
Study Site South Bend Indiana 46601
Study Site Metairie Louisiana 70006
Study Site Baltimore Maryland 21205
Study Site Rockville Maryland 20850
Study Site Austin Texas 78705
Study Site Fort Worth Texas 76135
Study Site Salt Lake City Utah 84124

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 NCT00958126, 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 Nov 20, 2017 · Synced Jul 23, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT00958126 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →