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Phase 2 N=408 Randomized Triple-blind Prevention

CSL H1N1 Influenza Vaccine Administered at Two Dose Levels in Adult and Elderly Populations

Influenza

Enrolled (actual)
408
Serious AEs
3.4%
Results posted
Apr 2011
Primary outcome: Primary: Number of Participants Reporting Solicited Local Reactions Based on the Functional Grading Scale After the First Vaccination — 29; 53; 62; 95 Participants

Study Design & Population

Study type
Interventional
Phase
Phase 2
Interventions
Inactivated H1N1 Vaccine (Biological)
Age
Adult, Older Adult · 18+ yrs
Sex
All
Sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
Primary completion
Mar 2010

Outcome Measures

OutcomeResultp-value
PRIMARY
Number of Participants Reporting Solicited Local Reactions Based on the Functional Grading Scale After the First Vaccination
29; 53; 62; 95; 23; 26
PRIMARY
Number of Participants Reporting Solicited Local Reactions Based on the Functional Grading Scale After the Second Vaccination
33; 45; 60; 91; 11; 14
PRIMARY
Number of Participants Reporting Measured Injection Site Reactions of Swelling and Redness After the First Vaccination
29; 31; 26; 29
PRIMARY
Number of Participants Reporting Measured Injection Site Reactions of Swelling and Redness After the Second Vaccination
10; 16; 22; 22
PRIMARY
Number of Participants Reporting Solicited Systemic Symptoms Based on the Functional Grading Scale After the First Vaccination
18; 20; 39; 51; 27; 28
PRIMARY
Number of Participants Reporting Solicited Systemic Symptoms Based on the Functional Grading Scale After the Second Vaccination
10; 23; 28; 36; 22; 23
PRIMARY
Number of Participants Reporting Fever After the First Vaccination
1; 2
PRIMARY
Number of Participants Reporting Fever After the Second Vaccination
1; 0
PRIMARY
Number of Participants in the 18-64 Year Age Stratum With a Serum Hemagglutination Inhibition (HAI) Antibody Titer of 1:40 or Greater Against Influenza H1N1 2009 Virus Prior to and 8-10 Days Following 1 Dose of H1N1 Vaccine
13; 10; 78; 81
PRIMARY
Number of Participants in the 65 Years and Older Age Stratum With a Serum Hemagglutination Inhibition (HAI) Antibody Titer of 1:40 or Greater Against Influenza H1N1 2009 Virus Prior to and 8-10 Days Following 1 Dose of H1N1 Vaccine
16; 18; 62; 70
PRIMARY
Number of Participants in the 18-64 Year Age Stratum With a Serum Hemagglutination Inhibition (HAI) Antibody Titer of 1:40 or Greater Against Influenza H1N1 2009 Virus at 21 Days Following 1 Dose of H1N1 Vaccine
82; 83
PRIMARY
Number of Participants in the 65 Years and Older Age Stratum With a Serum Hemagglutination Inhibition (HAI) Antibody Titer of 1:40 or Greater Against Influenza H1N1 2009 Virus at 21 Days Following 1 Dose of H1N1 Vaccine
60; 74
PRIMARY
Number of Participants Reporting Vaccine-associated Serious Adverse Events (SAEs)
0; 0
PRIMARY
Number of Participants in the 18-64 Year Age Stratum With 4-fold or Greater HAI Antibody Titer Increases Against Influenza H1N1 2009 Virus at 8-10 Days Following 1 Dose of Vaccine
71; 75
PRIMARY
Number of Participants in the 65 Years and Older Age Stratum With 4-fold or Greater HAI Antibody Titer Increases Against Influenza H1N1 2009 Virus at 8-10 Days Following 1 Dose of Vaccine
50; 58
PRIMARY
Number of Participants in the 18-64 Year Age Stratum With 4-fold or Greater HAI Antibody Titer Increases Against Influenza H1N1 2009 Virus at 21 Days Following 1 Dose of Vaccine
77; 78
PRIMARY
Number of Participants in the 65 Years and Older Age Stratum With 4-fold or Greater HAI Antibody Titer Increases Against Influenza H1N1 2009 Virus at 21 Days Following 1 Dose of Vaccine
54; 62
SECONDARY
Number of Participants in the 18-64 Year Age Stratum With 4-fold or Greater HAI Antibody Titer Increases Against Influenza H1N1 2009 Virus at 8-10 Days Following 2 Doses of H1N1 Vaccine.
77; 80
SECONDARY
Number of Participants in the 65 Years and Older Age Stratum With 4-fold or Greater HAI Antibody Titer Increases Against Influenza H1N1 2009 Virus at 8-10 Days Following 2 Doses of H1N1 Vaccine.
56; 71
SECONDARY
Number of Participants in the 18-64 Year Age Stratum With 4-fold or Greater HAI Antibody Titer Increases Against Influenza H1N1 2009 Virus at 21 Days Following 2 Doses of H1N1 Vaccine.
81; 78
SECONDARY
Number of Participants in the 65 Years and Older Age Stratum With 4-fold or Greater HAI Antibody Titer Increases Against Influenza H1N1 2009 Virus at 21 Days Following 2 Doses of H1N1 Vaccine.
56; 69
SECONDARY
Number of Participants in the 18-64 Year Age Stratum With a Serum HAI Antibody Titer of 1:40 or Greater Against Influenza H1N1 2009 Virus at 8-10 Days Following 2 Doses of H1N1 Vaccine.
84; 84
SECONDARY
Number of Participants in the 65 Years and Older Age Stratum With a Serum HAI Antibody Titer of 1:40 or Greater Against Influenza H1N1 2009 Virus at 8-10 Days Following 2 Doses of H1N1 Vaccine.
63; 81
SECONDARY
Number of Participants in the 18-64 Year Age Stratum With a Serum HAI Antibody Titer of 1:40 or Greater Against Influenza H1N1 2009 Virus at 21 Days Following 2 Doses of H1N1 Vaccine.
87; 84
SECONDARY
Number of Participants in the 65 Years and Older Age Stratum With a Serum HAI Antibody Titer of 1:40 or Greater Against Influenza H1N1 2009 Virus at 21 Days Following 2 Doses of H1N1 Vaccine.
60; 80

Summary

The purpose of this study is to assess the safety and immune response (body's defense against disease) to an experimental H1N1 influenza vaccine in healthy adult and elderly populations. The study will enroll up to 450 healthy adults ages 18 and older with no history of H1N1 infection or vaccination. Two hundred individuals will be 18-64 years old, and the other 200 will be greater than or equal to 65 years of age. Participants will be randomly assigned to 1 of 2 possible vaccine groups: group 1 will receive 15 micrograms (mcg) of H1N1 vaccine; group 2 will receive 30 mcg of H1N1 vaccine. Both groups will receive vaccine injections on days 0 and 21 in the arm muscle. Study procedures include: medical history, physical exam, maintaining a memory aid, and blood sample collection. Participants will be involved in study related procedures for approximately 7 months.

Eligibility Criteria

Inclusion Criteria

  • Are males or non-pregnant females age 18 and older, inclusive.
  • Women of child-bearing potential (not surgically sterile via tubal ligation, bilateral oophorectomy or hysterectomy or who are not postmenopausal for greater than or equal to 1 year) must agree to practice adequate contraception that may include, but is not limited to, abstinence, monogamous relationship with vasectomized partner, barrier methods such as condoms, diaphragms, spermicides, intrauterine devices, and licensed hormonal methods during the study for at least 30 days following the last vaccination.
  • Are in good health, as determined by vital signs, medical history to ensure any existing medical diagnoses or conditions are stable and not considered clinically significant, and targeted physical examination based on medical history. (A stable chronic medical condition is defined as no change in prescription medication, dose, or frequency of medication in the last 3 months and health outcomes of the specific disease are considered to be within acceptable limits in the last 6 months. Any change that is due to change of health care provider, insurance company etc, or that is done for financial reasons, as long as in the same class of medication will not be considered a violation of this inclusion criterion. Any change in prescription medication due to improvement of a disease outcome will not be considered a violation of this inclusion criterion).
  • Are able to understand and comply with planned study procedures.
  • Provide written informed consent prior to initiation of any study procedures.

Exclusion Criteria

  • Have a known allergy to eggs or other components of the vaccine (including gelatin, formaldehyde, octoxinol, thimerosal, and chicken protein).
  • Have a positive urine or serum pregnancy test within 24 hours prior to vaccination (if female of childbearing potential as defined in inclusion criteria), or women who are breastfeeding.
  • Have immunosuppression as a result of an underlying illness or treatment, or use of anticancer chemotherapy or radiation therapy (cytotoxic) within the preceding 36 months.
  • Have an active neoplastic disease or a history of any hematologic malignancy.
  • Have long term use of glucocorticoids including oral, parenteral or high-dose inhaled steroids (>800 micrograms (mcg)/day of beclomethasone dipropionate or equivalent) within the preceding 6 months. (Nasal and topical steroids are allowed.)
  • Have a diagnosis of schizophrenia, bipolar disease, or other major psychiatric diagnosis.
  • Have been hospitalized for psychiatric illness, history of suicide attempt, or confinement for danger to self or others, within the past 10 years.
  • Are receiving psychiatric drugs (aripiprazole, clozapine, ziprasidone, haloperidol, molindone, loxapine, thioridazine, thiothixene, pimozide, fluphenazine, risperidone, mesoridazine, quetiapine, trifluoperazine, chlorprothixene, chlorpromazine, perphenazine, trifluopromazine, olanzapine, carbamazepine, divalproex sodium, lithium carbonate or lithium citrate). Subjects who are receiving a single antidepressant drug and are stable for at least 3 months prior to enrollment, without de-compensating symptoms will be allowed to be enrolled in the study.
  • Have a history of receiving immunoglobulin or other blood product within the 3 months prior to vaccination in this study.
  • Received an experimental agent (vaccine, drug, biologic, device, blood product, or medication) within 1 month prior to vaccination in this study or expect to receive an experimental agent during this study (prior to the Day 201 follow-up call - 180 days after the second vaccination).
  • Have received any live licensed vaccines within 4 weeks or inactivated licensed vaccines within 2 weeks prior to vaccination in this study or plan receipt of such vaccines within 21 days following the second vaccination. This is inclusive of seasonal influenza vaccines.
  • Have an acute or chronic medical condition that, in th
View full record on ClinicalTrials.gov →

Data sourced from ClinicalTrials.gov (NCT00943488). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication.

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