InfluenzaPhase 2NCT00943488
CSL H1N1 Influenza Vaccine Administered at Two Dose Levels in Adult and Elderly Populations
A Phase 2 study testing Inactivated H1N1 Vaccine in people with Influenza, run by National Institute of Allergy and Infectious Diseases (NIAID) at 4 sites in United States.
Trial 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. 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?
- Inactivated H1N1 Vaccine
- Type of treatment
- Vaccines, Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 408 participants
- Where
- 4 sitesUnited States
- Study dates
- Aug 2009to Mar 2010
- Phase
- Phase 2
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
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
- 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.
Who cannot join
- 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.
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- 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 the opinion of the investigator, would render vaccination unsafe, or would interfere with the evaluation of responses.
- Have a history of severe reactions following previous immunization with influenza virus vaccines.
- Have an acute illness, including an oral temperature greater than 100.4 degrees Fahrenheit, within 3 days prior to vaccination.
- Have any condition that would, in the opinion of the site investigator, place them at an unacceptable risk of injury or render them unable to meet the requirements of the protocol.
- Participated in a novel influenza H1N1 2009 vaccine study in the past two years or have a history of novel influenza H1N1 2009 infection prior to enrollment.
- Have a known active human immunodeficiency virus (HIV), Hepatitis B, or Hepatitis C infection.
- Have a history of alcohol or drug abuse in the last 5 years.
- Plan to travel outside of North America in the time between the first vaccination and 42 days following the first vaccination.
- Have a history of Guillain-Barré Syndrome.
- Have any condition that the investigator believes may interfere with successful completion of the study.
Trial locations and contacts
4 sites in 1 country.
United States4 sites
Cincinnati Children's Hospital Medical Center - Infectious Diseases
Cincinnati, Ohio, 45231
University of Iowa
Iowa City, Iowa, 52242
Group Health Cooperative
Seattle, Washington, 98101
University of Washington
Seattle, Washington, 98104
About this study
Official title: A Phase II Study in Healthy Adult and Elderly Populations to Assess the Safety and Immunogenicity of an Unadjuvanted CSL H1N1 Influenza Vaccine Administered at Two Dose Levels
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.
Read the detailed description
Recently, a novel swine-origin influenza A/H1N1 virus was identified as a significant cause of febrile respiratory illnesses in Mexico and the United States. It rapidly spread to many countries around the world, prompting the World Health Organization (WHO) to declare a pandemic on June 11, 2009. Data from several cohorts in different age groups that received licensed trivalent seasonal influenza vaccines suggest that these vaccines are unlikely to provide protection against the new virus. In addition, adults are more likely to have measurable levels of serum hemagglutination inhibition assay (HAI) or neutralizing antibody than are children. These data indicate the need to develop vaccines against the new H1N1 strain and suggest that different vaccine strategies (e.g., number of doses, need for adjuvant) may be appropriate for persons in different age groups. The primary safety objective of this study is to assess the safety of the unadjuvanted, inactivated H1N1 vaccine when administered at the 15 or 30 microgram (mcg) dose. The primary immunogenicity objective is to assess the antibody response following a single dose of unadjuvanted, inactivated H1N1 vaccine, stratified by age of recipient, when administered at the 15 or 30 mcg dose. The secondary immunogenicity objective is to assess the antibody response following 2 doses of unadjuvanted, inactivated H1N1 vaccine, stratified by age of recipient, when administered at the 15 or 30 mcg dose. Participants will include up to 450 healthy adults age 18 and older who have no history of novel influenza H1N1 2009 infection or novel influenza H1N1 2009 vaccination. This is a randomized, double-blinded, Phase II study in healthy males and non-pregnant females designed to investigate the safety, reactogenicity, and immunogenicity of an inactivated influenza H1N1 virus vaccine at 2 dose levels. Subjects will be randomized into 2 dose groups, stratified by age (200 subjects per dose group with 100 subjects per age stratum, 18-64 or greater than or equal to 65 years of age) to receive intramuscular inactivated influenza H1N1 vaccine at 15 mcg (Group 1) or 30 mcg (Group 2). The H1N1 vaccine will be administered at Day 0 and Day 21. Following immunization, safety will be measured by assessment of adverse events through 21 days following the last vaccination (Day 42 for those receiving both doses and Day 21 for those who do not receive the second dose), serious adverse events and new-onset chronic medical conditions through 7 months post first vaccination (Day 201), and reactogenicity to the vaccine for 8 days following each vaccination (Day 0-7). Immunogenicity testing will include HAI and neutralizing antibody testing on serum obtained on the day of each vaccination (prior to vaccination), on Day 8-10 after each vaccination, and 21 days following the second vaccination (Day 42).
- Conditions
- Influenza
- Being tested
- Inactivated H1N1 Vaccine
- Keywords
- influenza A viruses, H1N1, elderly
- Medical subject headings
- Influenza, Human
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Inactivated H1N1 VaccineBiological
Two doses of inactivated influenza H1N1 vaccine delivered intramuscularly as 15 or 30 mcg per dose.
| Study group | Role | What they receive |
|---|---|---|
| Group 1: H1N1 Vaccine 15 mcg | Experimental | 200 subjects (100 subjects ages 18-64 and 100 subjects greater than or equal to age 65) to receive 15 mcg of H1N1 vaccine on Days 0 and 21. Receives: Biological: Inactivated H1N1 Vaccine |
| Group 2: H1N1 Vaccine 30 mcg | Experimental | 200 subjects (100 subjects ages 18-64 and 100 subjects greater than or equal to age 65) to receive 30 mcg of H1N1 vaccine on Days 0 and 21. Receives: Biological: Inactivated H1N1 Vaccine |
What is being measured
The primary outcome is the main question the study is designed to answer.
Number of Participants Reporting Solicited Local Reactions Based on the Functional Grading Scale After the First Vaccination
Participants maintained a memory aid to record daily the occurrence of local reactions of pain, tenderness and swelling for 8 days after vaccination (Day 0-7) based on their interference with daily activities, with a severity grade of mild meaning no interference, moderate as some interference and severe as significant interference/prevented daily activity. Participants are counted if they reported experiencing the symptom at any severity on any of the 8 days.
Measured: Day 0-7 after first vaccination
Number of Participants Reporting Solicited Local Reactions Based on the Functional Grading Scale After the Second Vaccination
Participants maintained a memory aid to record daily the occurrence of local reactions of pain, tenderness and swelling for 8 days after vaccination (Day 0-7) based on their interference with daily activities, with a severity grade of mild meaning no interference, moderate as some interference and severe as significant interference/prevented daily activity. Participants are counted if they reported experiencing the symptom at any severity on any of the 8 days.
Measured: Day 0-7 after second vaccination
Number of Participants Reporting Measured Injection Site Reactions of Swelling and Redness After the First Vaccination
Participants maintained a memory aid to record daily the occurrence of local reactions of swelling and redness for 8 days after vaccination (Day 0-7). If the reaction was present, the maximum diameter was measured in millimeters (mm). Participants are counted if they reported experiencing the reaction with any measurement greater than 0 mm on any of the 8 days.
Measured: Day 0-7 after first vaccination
Number of Participants Reporting Measured Injection Site Reactions of Swelling and Redness After the Second Vaccination
Participants maintained a memory aid to record daily the occurrence of local reactions of swelling and redness for 8 days after vaccination (Day 0-7). If the reaction was present, the maximum diameter was measured in millimeters (mm). Participants are counted if they reported experiencing the reaction with any measurement greater than 0 mm on any of the 8 days.
Measured: Day 0-7 after second vaccination
Number of Participants Reporting Solicited Systemic Symptoms Based on the Functional Grading Scale After the First Vaccination
Participants maintained a memory aid to record daily the occurrence of systemic symptoms of feverishness, malaise, myalgia, headache, and nausea for 8 days after vaccination (Day 0-7) based on their interference with daily activities, with a severity grade of mild meaning no interference, moderate as some interference and severe as significant interference/prevented daily activity. Participants are counted if they reported experiencing the symptom at any severity on any of the 8 days.
Measured: Day 0-7 after first vaccination
Number of Participants Reporting Solicited Systemic Symptoms Based on the Functional Grading Scale After the Second Vaccination
Participants maintained a memory aid to record daily the occurrence of systemic symptoms of feverishness, malaise, myalgia, headache, and nausea for 8 days after vaccination (Day 0-7) based on their interference with daily activities, with a severity grade of mild meaning no interference, moderate as some interference and severe as significant interference/prevented daily activity. Participants are counted if they reported experiencing the symptom at any severity on any of the 8 days.
Measured: Day 0-7 after second vaccination
Number of Participants Reporting Fever After the First Vaccination
Participants were provided with a thermometer and a memory aid on which to record daily oral temperatures for 8 days after vaccination (Day 0-7). The protocol defined fever as oral temperature of 38.0 degrees Celsius or higher. Participants are counted as experiencing fever if they reported oral temperatures of 38.0 degrees Celsius or higher on any of the 8 days.
Measured: Day 0-7 after first vaccination
Number of Participants Reporting Fever After the Second Vaccination
Participants were provided with a thermometer and a memory aid on which to record daily oral temperatures for 8 days after vaccination (Day 0-7). The protocol defined fever as oral temperature of 38.0 degrees Celsius or higher. Participants are counted as experiencing fever if they reported oral temperatures of 38.0 degrees Celsius or higher on any of the 8 days.
Measured: Day 0-7 after second vaccination
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
Blood was collected from all participants prior to vaccination and at the 8-10 day follow up visit for testing in the HAI assay with Influenza H1N1 2009 virus as the assay antigen. Each sample was tested at least twice according to standard operating procedures and the result of each replicate reported. A participant is counted if the geometric mean of the replicate values was 1:40 or greater.
Measured: Day 0 prior to and Day 8-10 after first vaccination
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
Blood was collected from all participants prior to vaccination and at the 8-10 day follow up visit for testing in the HAI assay with Influenza H1N1 2009 virus as the assay antigen. Each sample was tested at least twice according to standard operating procedures and the result of each replicate reported. A participant is counted if the geometric mean of the replicate values was 1:40 or greater.
Measured: Day 0 prior to and Day 8-10 after first vaccination
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
Blood was collected from all participants at the 21 day follow up visit for testing in the HAI assay with Influenza H1N1 2009 virus as the assay antigen. Each sample was tested at least twice according to standard operating procedures and the result of each replicate reported. A participant is counted if the geometric mean of the replicate values was 1:40 or greater.
Measured: Day 21 after first vaccination
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
Blood was collected from all participants at the 21 day follow up visit for testing in the HAI assay with Influenza H1N1 2009 virus as the assay antigen. Each sample was tested at least twice according to standard operating procedures and the result of each replicate reported. A participant is counted if the geometric mean of the replicate values was 1:40 or greater.
Measured: Day 21 after first vaccination
Number of Participants Reporting Vaccine-associated Serious Adverse Events (SAEs)
Serious adverse events included any untoward medical occurrence that resulted in death; was life threatening; was a persistent/significant disability/incapacity; required in-patient hospitalization or prolongation thereof; resulted in a congenital anomaly/birth defect; or may have jeopardized the participant or required intervention to prevent one of these outcomes. Association to vaccination was determined by a study clinician licensed to make medical diagnoses.
Measured: Day 0 through Day 180 after last vaccination
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
Blood was collected from all participants prior to vaccination and at the 8-10 day follow up visit for testing in the HAI assay with Influenza H1N1 2009 virus as the assay antigen. A participant met the threshold of a 4-fold rise in titer if the Day 0 titer was less than 1:10 (the assay's lowest level of detection) and the Day 8-10 titer was 1:40 or greater, or the Day 0 titer was greater than or equal to 1:10 and the Day 8-10 titer was an increase by 4-fold or more.
Measured: Day 0 prior to and Day 8-10 after first vaccination
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
Blood was collected from all participants prior to vaccination and at the 8-10 day follow up visit for testing in the HAI assay with Influenza H1N1 2009 virus as the assay antigen. A participant met the threshold of a 4-fold rise in titer if the Day 0 titer was less than 1:10 (the assay's lowest level of detection) and the Day 8-10 titer was 1:40 or greater, or the Day 0 titer was greater than or equal to 1:10 and the Day 8-10 titer was an increase by 4-fold or more.
Measured: Day 0 prior to and Day 8-10 after first vaccination
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
Blood was collected from all participants prior to vaccination and at the 21 day follow up visit for testing in the HAI assay with Influenza H1N1 2009 virus as the assay antigen. A participant met the threshold of a 4-fold rise in titer if the Day 0 titer was less than 1:10 (the assay's lowest level of detection) and the Day 21 titer was 1:40 or greater, or the Day 0 titer was greater than or equal to 1:10 and the Day 21 titer was an increase by 4-fold or more.
Measured: Day 0 prior to and Day 21 after first vaccination
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
Blood was collected from all participants prior to vaccination and at the 21 day follow up visit for testing in the HAI assay with Influenza H1N1 2009 virus as the assay antigen. A participant met the threshold of a 4-fold rise in titer if the Day 0 titer was less than 1:10 (the assay's lowest level of detection) and the Day 21 titer was 1:40 or greater, or the Day 0 titer was greater than or equal to 1:10 and the Day 21 titer was an increase by 4-fold or more.
Measured: Day 0 prior to and Day 21 after first vaccination
Secondary outcomes (8)
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.
Blood was collected from all participants prior to the initial vaccination and 8-10 days after the second vaccination for testing in the HAI assay with Influenza H1N1 2009 virus as the assay antigen. A participant met the threshold of a 4-fold rise in titer if the Day 0 titer was less than 1:10 (the assay's lowest level of detection) and the Day 8-10 post vaccination 2 titer was 1:40 or greater, or the Day 0 titer was greater than or equal to 1:10 and the Day 8-10 post vaccination 2 titer was an increase by 4-fold or more.
Measured: Day 0 prior to first vaccination and Day 8-10 after the second vaccination
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.
Blood was collected from all participants prior to the initial vaccination and 8-10 days after the second vaccination for testing in the HAI assay with Influenza H1N1 2009 virus as the assay antigen. A participant met the threshold of a 4-fold rise in titer if the Day 0 titer was less than 1:10 (the assay's lowest level of detection) and the Day 8-10 post vaccination 2 titer was 1:40 or greater, or the Day 0 titer was greater than or equal to 1:10 and the Day 8-10 post vaccination 2 titer was an increase by 4-fold or more.
Measured: Day 0 prior to first vaccination and Day 8-10 after the second vaccination
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.
Blood was collected from all participants prior to the initial vaccination and 21 days after the second vaccination for testing in the HAI assay with Influenza H1N1 2009 virus as the assay antigen. A participant met the threshold of a 4-fold rise in titer if the Day 0 titer was less than 1:10 (the assay's lowest level of detection) and the Day 21 post vaccination 2 titer was 1:40 or greater, or the Day 0 titer was greater than or equal to 1:10 and the Day 21 post vaccination 2 titer was an increase by 4-fold or more.
Measured: Day 0 prior to first vaccination and Day 21 after the second vaccination
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.
Blood was collected from all participants prior to the initial vaccination and 21 days after the second vaccination for testing in the HAI assay with Influenza H1N1 2009 virus as the assay antigen. A participant met the threshold of a 4-fold rise in titer if the Day 0 titer was less than 1:10 (the assay's lowest level of detection) and the Day 21 post vaccination 2 titer was 1:40 or greater, or the Day 0 titer was greater than or equal to 1:10 and the Day 21 post vaccination 2 titer was an increase by 4-fold or more.
Measured: Day 0 prior to first vaccination and Day 21 after the second vaccination
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.
Blood was collected from all participants at Day 8-10 post second vaccination for testing in the HAI assay with Influenza H1N1 2009 virus as the assay antigen. Each sample was tested at least twice according to standard operating procedures and the result of each replicate reported. A participant is counted if the geometric mean of the replicate values was 1:40 or greater.
Measured: Day 8-10 after the second vaccination
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.
Blood was collected from all participants at Day 8-10 post second vaccination for testing in the HAI assay with Influenza H1N1 2009 virus as the assay antigen. Each sample was tested at least twice according to standard operating procedures and the result of each replicate reported. A participant is counted if the geometric mean of the replicate values was 1:40 or greater.
Measured: Day 8-10 after the second vaccination
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.
Blood was collected from all participants at Day 21 post second vaccination for testing in the HAI assay with Influenza H1N1 2009 virus as the assay antigen. Each sample was tested at least twice according to standard operating procedures and the result of each replicate reported. A participant is counted if the geometric mean of the replicate values was 1:40 or greater.
Measured: Day 21 after the second vaccination
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.
Blood was collected from all participants at Day 21 post second vaccination for testing in the HAI assay with Influenza H1N1 2009 virus as the assay antigen. Each sample was tested at least twice according to standard operating procedures and the result of each replicate reported. A participant is counted if the geometric mean of the replicate values was 1:40 or greater.
Measured: Day 21 after the second vaccination
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted22 Jul 2009 (estimated)
- Study startAug 2009
- Primary completionMar 2010
- Study completionMar 2010
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for InfluenzaStudies of the same condition, open and under way.
- More trials run by National Institute of Allergy and Infectious Diseases (NIAID)The sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- Triple blind
- Who is masked
- Participant, Investigator, Outcomes assessor
- Enrolment
- 408 participants (actual)
Sponsor and investigators
- Sponsor type
- US National Institutes of Health
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00943488
- Sponsor's protocol ID
- 09-0043
- Other IDs
- N01AI80008C
- Status last verified
- Mar 2010
- First submitted
- 21 Jul 2009
- Last updated
- 31 Oct 2012
- Results posted
- Yes, on ClinicalTrials.gov
Publications
Chen WH, Winokur PL, Edwards KM, Jackson LA, Wald A, Walter EB, Noah DL, Wolff M, Kotloff KL; Pandemic H1N1 Vaccine Adult Study Group. Phase 2 assessment of the safety and immunogenicity of two inactivated pandemic monovalent H1N1 vaccines in adults as a component of the U.S. pandemic preparedness plan in 2009. Vaccine. 2012 Jun 13;30(28):4240-8. doi: 10.1016/j.vaccine.2012.04.044. Epub 2012 Apr 23.
PubMed 22537984
Study at a glance
From the registry record, last updated by the sponsor on 31 Oct 2012. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Phase II Study in Healthy Adult and Elderly Populations to Assess the Safety and Immunogenicity of an Unadjuvanted CSL H1N1 Influenza Vaccine Administered at Two Dose Levels
- ClinicalTrials.gov ID
- NCT00943488
- Acronym / sponsor ID
- 09-0043
- Conditions
- Influenza
- Keywords
- influenza A viruses, H1N1, elderly
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 408 participants (actual)
- Lead sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)US National Institutes of Health
- Study start
- Aug 2009
- Primary completion
- Mar 2010 (actual)
- Study completion
- Mar 2010 (actual)
- First posted
- 22 Jul 2009 (estimated)
- Results
- Posted 11 Apr 2011
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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.
Detailed description
Recently, a novel swine-origin influenza A/H1N1 virus was identified as a significant cause of febrile respiratory illnesses in Mexico and the United States. It rapidly spread to many countries around the world, prompting the World Health Organization (WHO) to declare a pandemic on June 11, 2009. Data from several cohorts in different age groups that received licensed trivalent seasonal influenza vaccines suggest that these vaccines are unlikely to provide protection against the new virus. In addition, adults are more likely to have measurable levels of serum hemagglutination inhibition assay (HAI) or neutralizing antibody than are children. These data indicate the need to develop vaccines against the new H1N1 strain and suggest that different vaccine strategies (e.g., number of doses, need for adjuvant) may be appropriate for persons in different age groups. The primary safety objective of this study is to assess the safety of the unadjuvanted, inactivated H1N1 vaccine when administered at the 15 or 30 microgram (mcg) dose. The primary immunogenicity objective is to assess the antibody response following a single dose of unadjuvanted, inactivated H1N1 vaccine, stratified by age of recipient, when administered at the 15 or 30 mcg dose. The secondary immunogenicity objective is to assess the antibody response following 2 doses of unadjuvanted, inactivated H1N1 vaccine, stratified by age of recipient, when administered at the 15 or 30 mcg dose. Participants will include up to 450 healthy adults age 18 and older who have no history of novel influenza H1N1 2009 infection or novel influenza H1N1 2009 vaccination. This is a randomized, double-blinded, Phase II study in healthy males and non-pregnant females designed to investigate the safety, reactogenicity, and immunogenicity of an inactivated influenza H1N1 virus vaccine at 2 dose levels. Subjects will be randomized into 2 dose groups, stratified by age (200 subjects per dose group with 100 subjects per age stratum, 18-64 or greater than or equal to 65 years of age) to receive intramuscular inactivated influenza H1N1 vaccine at 15 mcg (Group 1) or 30 mcg (Group 2). The H1N1 vaccine will be administered at Day 0 and Day 21. Following immunization, safety will be measured by assessment of adverse events through 21 days following the last vaccination (Day 42 for those receiving both doses and Day 21 for those who do not receive the second dose), serious adverse events and new-onset chronic medical conditions through 7 months post first vaccination (Day 201), and reactogenicity to the vaccine for 8 days following each vaccination (Day 0-7). Immunogenicity testing will include HAI and neutralizing antibody testing on serum obtained on the day of each vaccination (prior to vaccination), on Day 8-10 after each vaccination, and 21 days following the second vaccination (Day 42).
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Triple blind (participant, investigator, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Group 1: H1N1 Vaccine 15 mcg | Experimental | Biological: Inactivated H1N1 Vaccine200 subjects (100 subjects ages 18-64 and 100 subjects greater than or equal to age 65) to receive 15 mcg of H1N1 vaccine on Days 0 and 21. |
| Group 2: H1N1 Vaccine 30 mcg | Experimental | Biological: Inactivated H1N1 Vaccine200 subjects (100 subjects ages 18-64 and 100 subjects greater than or equal to age 65) to receive 30 mcg of H1N1 vaccine on Days 0 and 21. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (5 listed)
- 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.
Key exclusion criteria (21 listed)
- 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.)
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Inactivated H1N1 VaccineTwo doses of inactivated influenza H1N1 vaccine delivered intramuscularly as 15 or 30 mcg per dose. | Biological | Group 1: H1N1 Vaccine 15 mcg, Group 2: H1N1 Vaccine 30 mcg |
Primary outcome
Number of Participants Reporting Solicited Local Reactions Based on the Functional Grading Scale After the First Vaccination
Time frame: Day 0-7 after first vaccination
Participants maintained a memory aid to record daily the occurrence of local reactions of pain, tenderness and swelling for 8 days after vaccination (Day 0-7) based on their interference with daily activities, with a severity grade of mild meaning no interference, moderate as some interference and severe as significant interference/prevented daily activity. Participants are counted if they reported experiencing the symptom at any severity on any of the 8 days.
Number of Participants Reporting Solicited Local Reactions Based on the Functional Grading Scale After the Second Vaccination
Time frame: Day 0-7 after second vaccination
Participants maintained a memory aid to record daily the occurrence of local reactions of pain, tenderness and swelling for 8 days after vaccination (Day 0-7) based on their interference with daily activities, with a severity grade of mild meaning no interference, moderate as some interference and severe as significant interference/prevented daily activity. Participants are counted if they reported experiencing the symptom at any severity on any of the 8 days.
Number of Participants Reporting Measured Injection Site Reactions of Swelling and Redness After the First Vaccination
Time frame: Day 0-7 after first vaccination
Participants maintained a memory aid to record daily the occurrence of local reactions of swelling and redness for 8 days after vaccination (Day 0-7). If the reaction was present, the maximum diameter was measured in millimeters (mm). Participants are counted if they reported experiencing the reaction with any measurement greater than 0 mm on any of the 8 days.
Number of Participants Reporting Measured Injection Site Reactions of Swelling and Redness After the Second Vaccination
Time frame: Day 0-7 after second vaccination
Participants maintained a memory aid to record daily the occurrence of local reactions of swelling and redness for 8 days after vaccination (Day 0-7). If the reaction was present, the maximum diameter was measured in millimeters (mm). Participants are counted if they reported experiencing the reaction with any measurement greater than 0 mm on any of the 8 days.
Number of Participants Reporting Solicited Systemic Symptoms Based on the Functional Grading Scale After the First Vaccination
Time frame: Day 0-7 after first vaccination
Participants maintained a memory aid to record daily the occurrence of systemic symptoms of feverishness, malaise, myalgia, headache, and nausea for 8 days after vaccination (Day 0-7) based on their interference with daily activities, with a severity grade of mild meaning no interference, moderate as some interference and severe as significant interference/prevented daily activity. Participants are counted if they reported experiencing the symptom at any severity on any of the 8 days.
Number of Participants Reporting Solicited Systemic Symptoms Based on the Functional Grading Scale After the Second Vaccination
Time frame: Day 0-7 after second vaccination
Participants maintained a memory aid to record daily the occurrence of systemic symptoms of feverishness, malaise, myalgia, headache, and nausea for 8 days after vaccination (Day 0-7) based on their interference with daily activities, with a severity grade of mild meaning no interference, moderate as some interference and severe as significant interference/prevented daily activity. Participants are counted if they reported experiencing the symptom at any severity on any of the 8 days.
Number of Participants Reporting Fever After the First Vaccination
Time frame: Day 0-7 after first vaccination
Participants were provided with a thermometer and a memory aid on which to record daily oral temperatures for 8 days after vaccination (Day 0-7). The protocol defined fever as oral temperature of 38.0 degrees Celsius or higher. Participants are counted as experiencing fever if they reported oral temperatures of 38.0 degrees Celsius or higher on any of the 8 days.
Number of Participants Reporting Fever After the Second Vaccination
Time frame: Day 0-7 after second vaccination
Participants were provided with a thermometer and a memory aid on which to record daily oral temperatures for 8 days after vaccination (Day 0-7). The protocol defined fever as oral temperature of 38.0 degrees Celsius or higher. Participants are counted as experiencing fever if they reported oral temperatures of 38.0 degrees Celsius or higher on any of the 8 days.
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
Time frame: Day 0 prior to and Day 8-10 after first vaccination
Blood was collected from all participants prior to vaccination and at the 8-10 day follow up visit for testing in the HAI assay with Influenza H1N1 2009 virus as the assay antigen. Each sample was tested at least twice according to standard operating procedures and the result of each replicate reported. A participant is counted if the geometric mean of the replicate values was 1:40 or greater.
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
Time frame: Day 0 prior to and Day 8-10 after first vaccination
Blood was collected from all participants prior to vaccination and at the 8-10 day follow up visit for testing in the HAI assay with Influenza H1N1 2009 virus as the assay antigen. Each sample was tested at least twice according to standard operating procedures and the result of each replicate reported. A participant is counted if the geometric mean of the replicate values was 1:40 or greater.
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
Time frame: Day 21 after first vaccination
Blood was collected from all participants at the 21 day follow up visit for testing in the HAI assay with Influenza H1N1 2009 virus as the assay antigen. Each sample was tested at least twice according to standard operating procedures and the result of each replicate reported. A participant is counted if the geometric mean of the replicate values was 1:40 or greater.
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
Time frame: Day 21 after first vaccination
Blood was collected from all participants at the 21 day follow up visit for testing in the HAI assay with Influenza H1N1 2009 virus as the assay antigen. Each sample was tested at least twice according to standard operating procedures and the result of each replicate reported. A participant is counted if the geometric mean of the replicate values was 1:40 or greater.
Number of Participants Reporting Vaccine-associated Serious Adverse Events (SAEs)
Time frame: Day 0 through Day 180 after last vaccination
Serious adverse events included any untoward medical occurrence that resulted in death; was life threatening; was a persistent/significant disability/incapacity; required in-patient hospitalization or prolongation thereof; resulted in a congenital anomaly/birth defect; or may have jeopardized the participant or required intervention to prevent one of these outcomes. Association to vaccination was determined by a study clinician licensed to make medical diagnoses.
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
Time frame: Day 0 prior to and Day 8-10 after first vaccination
Blood was collected from all participants prior to vaccination and at the 8-10 day follow up visit for testing in the HAI assay with Influenza H1N1 2009 virus as the assay antigen. A participant met the threshold of a 4-fold rise in titer if the Day 0 titer was less than 1:10 (the assay's lowest level of detection) and the Day 8-10 titer was 1:40 or greater, or the Day 0 titer was greater than or equal to 1:10 and the Day 8-10 titer was an increase by 4-fold or more.
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
Time frame: Day 0 prior to and Day 8-10 after first vaccination
Blood was collected from all participants prior to vaccination and at the 8-10 day follow up visit for testing in the HAI assay with Influenza H1N1 2009 virus as the assay antigen. A participant met the threshold of a 4-fold rise in titer if the Day 0 titer was less than 1:10 (the assay's lowest level of detection) and the Day 8-10 titer was 1:40 or greater, or the Day 0 titer was greater than or equal to 1:10 and the Day 8-10 titer was an increase by 4-fold or more.
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
Time frame: Day 0 prior to and Day 21 after first vaccination
Blood was collected from all participants prior to vaccination and at the 21 day follow up visit for testing in the HAI assay with Influenza H1N1 2009 virus as the assay antigen. A participant met the threshold of a 4-fold rise in titer if the Day 0 titer was less than 1:10 (the assay's lowest level of detection) and the Day 21 titer was 1:40 or greater, or the Day 0 titer was greater than or equal to 1:10 and the Day 21 titer was an increase by 4-fold or more.
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
Time frame: Day 0 prior to and Day 21 after first vaccination
Blood was collected from all participants prior to vaccination and at the 21 day follow up visit for testing in the HAI assay with Influenza H1N1 2009 virus as the assay antigen. A participant met the threshold of a 4-fold rise in titer if the Day 0 titer was less than 1:10 (the assay's lowest level of detection) and the Day 21 titer was 1:40 or greater, or the Day 0 titer was greater than or equal to 1:10 and the Day 21 titer was an increase by 4-fold or more.
8 secondary outcomes
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.
Time frame: Day 0 prior to first vaccination and Day 8-10 after the second vaccination
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.
Time frame: Day 0 prior to first vaccination and Day 8-10 after the second vaccination
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.
Time frame: Day 0 prior to first vaccination and Day 21 after the second vaccination
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.
Time frame: Day 0 prior to first vaccination and Day 21 after the second vaccination
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.
Time frame: Day 8-10 after the second vaccination
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.
Time frame: Day 8-10 after the second vaccination
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.
Time frame: Day 21 after the second vaccination
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.
Time frame: Day 21 after the second vaccination
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 31 Oct 2012.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Results publication: PubMed 22537984Chen WH, Winokur PL, Edwards KM, Jackson LA, Wald A, Walter EB, Noah DL, Wolff M, Kotloff KL; Pandemic H1N1 Vaccine Adult Study Group. Phase 2 assessment of the safety and immunogenicity of two inactivated pandemic monovalent H1N1 vaccines in adults as a component of the U.S. pandemic preparedness plan in 2009. Vaccine. 2012 Jun 13;30(28):4240-8. doi: 10.1016/j.vaccine.2012.04.044. Epub 2012 Apr 23.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
4 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2 study testing Inactivated H1N1 Vaccine in people with Influenza, run by National Institute of Allergy and Infectious Diseases (NIAID) at 4 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 5 inclusion and 21 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 31 Oct 2012. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 4 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?
Yes. Results are posted in the registry (first posted 11 Apr 2011). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
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?
Number of Participants Reporting Solicited Local Reactions Based on the Functional Grading Scale After the First Vaccination (time frame: Day 0-7 after first vaccination). The study lists 17 primary outcomes in all. 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 NCT00943488, which also lists 1 linked publication.
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 31 Oct 2012.