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InfluenzaPhase 2NCT01045564

Safety and Immunogenicity of Vaccine in Adults at Occupational Risk for Influenza A (H5N1) Exposure

A Phase 2 study testing GSK influenza virus H5N1 vaccine 1557484A in people with Influenza, run by GlaxoSmithKline at 3 sites in United States.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

The purpose of this study is to characterize the immunogenicity and safety of 3 doses of GSK's avian flu vaccine GSK 1557484A given at different time intervals to adults aged 18 years or greater who are at increased occupational risk of H5N1 exposure. Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
Conditions the study is for
Influenza
What is being tested?
GSK influenza virus H5N1 vaccine 1557484A
Could I receive a placebo?
No, everyone receives an active treatment
How many people
0 participants
Where
3 sitesUnited States
Study dates
Jan 2011to Feb 2013
Phase
Phase 2
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
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • A male or female 18 years of age or greater at the time of the first vaccination.
  • At increased risk of occupational exposure to H5N1 influenza viruses based on:
  • Exposure to diseased poultry or wild birds,
  • Exposure, or potential exposure, to human cases of unidentified respiratory disease or known avian influenza,
  • Handling of human or avian microbiological specimens,
  • Handling of H5N1 viral isolates,
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  • Or status critical to the implementation of emergency response measures in the event of an influenza pandemic declaration.
  • Written informed consent obtained from the subject.
  • Stable health status as defined by absence of a health event satisfying the definition of a serious adverse event, or a change in an ongoing drug therapy due to therapeutic failure or symptoms of drug toxicity, within one (1) month prior to enrollment.
  • Comprehension of the study requirements, ability to comprehend and comply with procedures for collection of safety data, expressed availability for the required study period, and ability and willingness to attend scheduled visits.

Who cannot join

  • Presence of evidence of substance abuse or of neurological or psychiatric diagnoses which, although stable, are deemed by the investigator to render the potential subject unable/unlikely to provide accurate safety reports.
  • Presence of an oral temperature >= 37.8ºC, or acute symptoms greater than "mild" severity on the scheduled date of first vaccination.
  • Diagnosed with cancer, or treatment for cancer, within 3 years.
  • Persons with a history of cancer who are disease-free without treatment for 3 years or more are eligible.
  • Persons with a history of histologically-confirmed basal cell carcinoma of the skin successfully treated with local excision only are excepted and may enroll within 3 years of diagnosis, but other histologic types of skin cancer require a 3 year untreated and disease-free window as above.
  • Women who are disease-free 3 years or more after treatment for breast cancer and receiving long-term prophylactic tamoxifen are excepted and may enroll.
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  • Any confirmed or suspected immunosuppressive or immunodeficient condition including history of human immunodeficiency virus (HIV) infection.
  • Receipt of systemic glucocorticoids within 1 month prior to study enrollment, or any other cytotoxic or immunosuppressive drug within 6 months of study enrollment.
  • Receipt of any immunoglobulins and/or any blood products within 3 months of study enrollment or planned administration of any of these products during the study period.
  • Any significant disorder of coagulation or treatment with warfarin derivatives or heparin. Persons receiving individual doses of low molecular weight heparin outside of 24 hours prior to vaccination, are eligible. Persons receiving prophylactic antiplatelet medications, e.g., low-dose aspirin, and without a clinically-apparent bleeding tendency, are eligible.
  • An acute evolving neurological disorder or history of Guillain-Barré syndrome within 6 weeks of receipt of seasonal influenza vaccine.
  • Administration of any vaccines within 30 days before any study vaccination.
  • Exposure to any investigational or non-registered product (drug or vaccine) during this trial, or within 30 days prior to study enrollment. Potential subjects in the follow-up (i.e., no treatment) phase of a prior investigational study may be enrolled if the investigator's judgment is that it will have no effect on safety, reactogenicity, or immunogenicity endpoints in this study; and that it does not violate the protocol requirements of the prior trial.
  • Any known or suspected allergy to any constituent of influenza vaccines (including egg proteins or mercurial preservatives); a history of anaphylactic-type reaction to consumption of eggs; or a history of severe adverse reaction to a previous influenza vaccine.
  • Receipt of analgesic or antipyretic medication with the specific intent of prophylaxis of vaccine reactogenicity on the day of treatment constitutes a contraindication to administration of study vaccine at that point in time;
  • Known pregnancy or a positive urine beta-human chorionic gonadotropin (β-hCG) test result prior to any vaccination.
  • Lactating or nursing.
  • Women of child bearing potential who lack a history of reliable contraceptive practices. The provision of this history does NOT replace the requirement to perform, and obtain negative results in pregnancy urine tests prior to treatments.
  • Reliable contraceptive practices include:
  • consistent abstinence from heterosexual activity,
  • consistent use of combined or progestogen oral contraceptives,
  • injectable progestogen,
  • implants of levonorgestrel,
  • estrogen or estrogen/ progestogen vaginal ring,
  • percutaneous contraceptive patches or intrauterine device (IUD) or intrauterine system (IUS),
  • vasectomy with documented azoospermia of >= 6 months of the sole male partner, or
  • double barrier method (condom or occlusive cap plus spermicidal agent).

Trial locations and contacts

3 sites in 1 country.

United States3 sites
  • GSK Investigational Site

    Atlanta, Georgia, 30329-4018

  • GSK Investigational Site

    Bethesda, Maryland, 20892-1584

  • GSK Investigational Site

    Silver Spring, Maryland, 20910

Other trials in United States

About this study

Official title: Safety and Immunogenicity of GSK 15574484A Vaccine in Adults at Occupational Risk for Influenza A (H5N1) Exposure

The purpose of this study is to characterize the immunogenicity and safety of 3 doses of GSK's avian flu vaccine GSK 1557484A given at different time intervals to adults aged 18 years or greater who are at increased occupational risk of H5N1 exposure.

Conditions
Influenza
Being tested
GSK influenza virus H5N1 vaccine 1557484A
Keywords
Immunogenicity, Vaccines, H5N1, Influenza, Pandemic, Human, Avian, Safety
Medical subject headings
Influenza, Human

What participants receive

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

  • GSK influenza virus H5N1 vaccine 1557484ABiological

    Three doses of GSK 1557484A administered intramuscularly (IM), the first and third in the deltoid region of the non-dominant arm and the second in the deltoid region of the dominant arm

Study groups in NCT01045564
Study groupRoleWhat they receive
AExperimentalOne dose of study vaccine (GSK 1557484A) on Day 0, Day 182, and Day 364
Receives: Biological: GSK influenza virus H5N1 vaccine 1557484A
BExperimentalOne dose of study vaccine (GSK 1557484A) on Day 0, Day 91, and Day 364
Receives: Biological: GSK influenza virus H5N1 vaccine 1557484A
CExperimentalOne dose of study vaccine (GSK 1557484A) on Day 0, Day 21, and Day 364
Receives: Biological: GSK influenza virus H5N1 vaccine 1557484A
DExperimentalOne dose of study vaccine (GSK 1557484A) on Day 0, Day 21, and Day 364
Receives: Biological: GSK influenza virus H5N1 vaccine 1557484A
EExperimentalOne dose of study vaccine (GSK 1557484A) on Day 0, Day 21, and Day 364
Receives: Biological: GSK influenza virus H5N1 vaccine 1557484A

What is being measured

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

  1. Booster humoral immune response in terms of Hemagglutination Inhibition (HI) antibodies (after second vaccination).

    Measured: Day 0 and 21 days after the second vaccination

Secondary outcomes (7)
  1. Booster humoral immune response in terms of Hemagglutination Inhibition (HI) antibodies.on secondary readouts (after second vaccination)

    Measured: Days 0 and 21 days after second vaccination

  2. Primary humoral immune response in terms of Hemagglutination Inhibition (HI) antibodies (after first vaccination)

    Measured: Days 0, 21 and 42 after first vaccination (depending on vaccination schedule)

  3. Humoral immune response in terms of Hemagglutination Inhibition (HI) antibodies (after third vaccination)

    Measured: Days 364, 385, and 546

  4. Humoral immune response in terms of microneutralization titers and cellular T-cell immune response

    Measured: Days 0, 21, 21 days after second vaccination, 364, 385, and 546 (depending on vaccination schedule)

  5. Occurrence of specifically-solicited local and general signs and symptoms

    Measured: During a 7-day follow up period after each vaccine dose

  6. Occurrence of all unsolicited adverse events

    Measured: During a 21-day follow up period after each vaccine dose

  7. Occurrence of serious adverse events and adverse events of special interest

    Measured: From day 0 through day 546

Timeline

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

  1. First posted11 Jan 2010 (estimated)
  2. Study startJan 2011
  3. Primary completionFeb 2013 (estimated)
  4. Study completionFeb 2013 (estimated)

Why it stopped: Study was cancelled before enrolment for reasons not related to vaccine safety or efficacy.

Resources

More details

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

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01045564
Sponsor's protocol ID
112576
Status last verified
Mar 2015
First submitted
7 Jan 2010
Last updated
23 Mar 2015
Results posted
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing GSK influenza virus H5N1 vaccine 1557484A in people with Influenza, run by GlaxoSmithKline at 3 sites 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 10 inclusion and 27 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: withdrawn, as of the sponsor's last update on 23 Mar 2015. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites 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.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study was withdrawn before enrolling participants, so there are no results.

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?

Booster humoral immune response in terms of Hemagglutination Inhibition (HI) antibodies (after second vaccination). (time frame: Day 0 and 21 days after the second vaccination). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 23 Mar 2015.

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