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2017 A/H7N9 IIV Revaccination

Primary Purpose

Avian Influenza, Influenza Immunisation

Status
Completed
Phase
Phase 2
Locations
United States
Study Type
Interventional
Intervention
A/H7N9
AS03
Phosphate Buffered Saline (PBS) diluent
Sponsored by
National Institute of Allergy and Infectious Diseases (NIAID)
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional prevention trial for Avian Influenza focused on measuring A/H7N9 Inactivated Influenza Vaccine, AS03 Adjuvant, Immunogenicity, Influenza, Phase II, Reactogenicity, Safety, Vaccine

Eligibility Criteria

19 Years - 70 Years (Adult, Older Adult)All SexesAccepts Healthy Volunteers

Inclusion Criteria:

Subjects eligible to participate in this trial must meet all of the following inclusion criteria:

  1. Provide written informed consent prior to initiation of any study procedures.
  2. Are able to understand and comply with planned study procedures and be available for all study visits.
  3. Must agree to the collection of venous blood per protocol.
  4. Must agree to have residual specimens and samples/specimens collected during this trial specifically for the purpose of future research stored for future research use.
  5. Are males or non-pregnant females, 19 to 70 years of age, inclusive.
  6. Are in good health* *As determined by medical history and physical examination to evaluate acute or currently ongoing chronic medical diagnoses or conditions, defined as those that have been present for at least 90 days, which would affect the assessment of the safety of subjects or the immunogenicity of study vaccinations. Chronic medical diagnoses or conditions should be stable for the last 60 days (no hospitalizations, emergency room or urgent care for condition and no adverse symptoms that need medical intervention such as medication change/supplemental oxygen). This includes no change in chronic prescription medication, dose or frequency as a result of deterioration of the chronic medical diagnosis or condition in the 60 days prior to enrollment. Any prescription 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 deviation of this inclusion criterion. Any change in prescription medication due to improvement of a disease outcome, as determined by the site PI or appropriate sub-investigator, will not be considered a deviation of this inclusion criterion. Subjects may be on chronic or as needed (prn) medications if, in the opinion of the site PI or appropriate sub-investigator, they pose no additional risk to subject safety or assessment of reactogenicity and immunogenicity and do not indicate a worsening of medical diagnosis or condition. Similarly, medication changes subsequent to enrollment and study vaccination are acceptable provided there was no deterioration in the subject's chronic medical condition that necessitated a medication change, and there is no additional risk to the subject or interference with the evaluation of responses to study vaccination. Note: Topical, nasal and inhaled medications (except inhaled corticosteroids as outlined in the Subject Exclusion Criteria as well as herbals, vitamins and supplements are permitted.
  7. Oral temperature is less than 100.0 degrees Fahrenheit.
  8. Pulse is 47 to 100 beats per minute, inclusive.
  9. Systolic blood pressure is 85 to 150 mmHg, inclusive.
  10. Diastolic blood pressure is 55 to 95 mmHg, inclusive.
  11. Erythrocyte Sedimentation Rate (ESR) is less than 30 mm per hour.
  12. Women of childbearing potential** must use an acceptable contraception method*** from 30 days before study vaccination until 60 days after study vaccination.

    **Not sterilized via tubal ligation, bilateral oophorectomy, salpingectomy, hysterectomy, or successful Essure(R) placement (permanent, non-surgical, non-hormonal sterilization) with documented radiological confirmation test at least 90 days after the procedure, and still menstruating or <1 year has passed since the last menses if menopausal.

    ***Includes non-male sexual relationships, abstinence from sexual intercourse with a male partner, monogamous relationship with vasectomized partner who has been vasectomized for 180 days or more prior to the subject receiving the study vaccination, barrier methods such as condoms or diaphragms/cervical cap with spermicide, effective intrauterine devices, NuvaRing(R), and licensed hormonal methods such as implants, injectables or oral contraceptives ("the pill").

  13. Women of childbearing potential must have a negative urine or serum pregnancy test within 24 hours prior to study vaccination.
  14. Received 1 or 2 doses of 2013 A/H7N9 IIV with or without AS03 or MF59 adjuvant in DMID Protocols 13-0032 or 13-0033, or are A/H7 IIV-naïve.

Exclusion Criteria:

Subjects eligible to participate in this trial must not meet any of the following exclusion criteria:

  1. Have an acute illness*, as determined by the site PI or appropriate sub-investigator, within 72 hours prior to study vaccination.

    *An acute illness which is nearly resolved with only minor residual symptoms remaining is allowable if, in the opinion of the site PI or appropriate sub-investigator, the residual symptoms will not interfere with the ability to assess safety parameters as required by the protocol.

  2. Have any medical disease or condition that, in the opinion of the site PI or appropriate sub-investigator, is a contraindication to study participation**.

    **Including acute or chronic medical disease or condition, defined as persisting for at least 90 days, that would place the subject at an unacceptable risk of injury, render the subject unable to meet the requirements of the protocol, or may interfere with the evaluation of responses or the subject's successful completion of this trial.

  3. Have immunosuppression as a result of an underlying illness or treatment, a recent history or current use of immunosuppressive or immunomodulating disease therapy.
  4. Use of cytotoxic anticancer chemotherapy or radiation therapy within 3 years prior to study vaccination.
  5. Have known active neoplastic disease or a history of any hematologic malignancy. Non-melanoma, treated, skin cancers are permitted.
  6. Have known human immunodeficiency virus (HIV), hepatitis B or hepatitis C infection.
  7. Have known hypersensitivity or allergy to eggs, egg or chicken protein, squalene-based adjuvants, or other components of the study vaccine.
  8. Have a history of severe reactions following previous immunization with licensed or unlicensed influenza vaccines.
  9. Have a personal or family history of narcolepsy.
  10. Have a history of Guillain-Barré Syndrome (GBS).
  11. Have a history of convulsions or encephalomyelitis within 90 days prior to study vaccination.
  12. Have a history of Potentially Immune-Mediated Medical Conditions (PIMMCs).
  13. Have a history of alcohol or drug abuse within 5 years prior to study vaccination.
  14. Have any diagnosis, current or past, of schizophrenia, bipolar disease or other psychiatric diagnosis that may interfere*** with subject compliance or safety evaluations.

    ***As determined by the site PI or appropriate sub-investigator.

  15. Have been hospitalized for psychiatric illness, history of suicide attempt, or confinement for danger to self or others within 10 years prior to study vaccination.
  16. Have taken oral or parenteral (including intra-articular) corticosteroids of any dose within 30 days prior to study vaccination.
  17. Have taken high-dose inhaled corticosteroids**** within 30 days prior to study vaccination.

    ****High-dose defined as per age as using inhaled high-dose per reference chart in the National Heart, Lung and Blood Institute Guidelines for the Diagnosis and Management of Asthma (EPR-3) or other lists published in UPTODATE.

  18. Received or plan to receive a licensed, live vaccine within 30 days before or after study vaccination.
  19. Received or plan to receive a licensed, inactivated vaccine (excluding all licensed, seasonal IIVs) within 14 days before or after study vaccination.
  20. Received or plan to receive a licensed, seasonal IIV within 21 days before or after study vaccination.
  21. Received immunoglobulin or other blood products (except Rho D immunoglobulin) within 90 days prior to study vaccination.
  22. Received an experimental agent***** within 30 days prior to study vaccination or expect to receive an experimental agent****** during the trial-reporting period*******.

    *****Including vaccine, drug, biologic, device, blood product, or medication.

    ******Other than from participation in this trial.

    *******Approximately 12 months after study vaccination.

  23. Are participating or plan to participate in another clinical trial with an interventional agent******** that will be received during the trial-reporting period*********.

    ********Including licensed or unlicensed vaccine, drug, biologic, device, blood product, or medication.

    *********Approximately 12 months after study vaccination.

  24. Have a history of influenza A/H7 subtype infection.
  25. Had substantial direct contact********** with live or freshly slaughtered poultry or pigeons while in mainland China within the past five years.

    **********Substantial direct contact is defined as visited a poultry farm and/or a live poultry market.

  26. Occupational exposure to or substantial direct physical contact*********** with birds in the past year and through 21 days after study vaccination.

    ***********Exposure to free range chickens in the yard is exclusionary. Casual contact with birds at petting zoos or county or state fairs or having pet birds does not exclude subjects from study participation.

  27. Female subjects who are breastfeeding.
  28. Plan to travel outside the US (continental US, Hawaii and Alaska) from the time of study vaccination through 21 days after study vaccination.

Sites / Locations

  • Emory Children's Center - Pediatric Infectious Diseases
  • University of Iowa - Vaccine Research and Education Unit
  • University of Maryland Baltimore - School of Medicine - Medicine
  • Saint Louis University - Center for Vaccine Development
  • Cincinnati Children's Hospital Medical Center - Infectious Diseases
  • Vanderbilt University Medical Center - Infectious Diseases
  • The University of Texas Medical Branch - Sealy Center for Vaccine Development (SCVD)
  • Baylor College of Medicine - Molecular Virology and Microbiology
  • Kaiser Permanente Washington Health Research Institute - Vaccines and Infectious Diseases

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm 4

Arm 5

Arm Type

Experimental

Experimental

Experimental

Experimental

Experimental

Arm Label

Arm 1

Arm 2

Arm 3

Arm 4

Arm 5

Arm Description

Participants will have prior administration of 2013 A/H7N9 IIV with MF59. Then, 3.75 mcg Hemagglutinin (HA) per 0.5 ml dose of 2017 A/H7N9 Inactivated Influenza Virus Vaccine (IIV) + AS03 adjuvant administered intramuscularly on Day 1 (n=50) or 3.75 mcg HA per 0.5 ml dose of 2017 A/H7N9 IIV unadjuvanted administered intramuscularly on Day 1 (n=50). Phosphate buffered saline (PBS) diluent may be used to achieve targeted dosages.

Participants will have prior administration of 2013 A/H7N9 IIV with AS03. Then, 3.75 mcg Hemagglutinin (HA) per 0.5 ml dose of 2017 A/H7N9 Inactivated Influenza Virus Vaccine (IIV) + AS03 adjuvant administered intramuscularly on Day 1 (n=50) or 3.75 mcg HA per 0.5 ml dose of 2017 A/H7N9 IIV unadjuvanted administered intramuscularly on Day 1 (n=50). Phosphate buffered saline (PBS) diluent may be used to achieve targeted dosages.

Participants will have prior administration of 2013 A/H7N9 IIV 15 mcg or 45 mcg unadjuvanted. Then, 3.75 mcg Hemagglutinin (HA) per 0.5 ml dose of 2017 A/H7N9 Inactivated Influenza Virus Vaccine (IIV) + AS03 adjuvant administered intramuscularly on Day 1 (n=50) or 3.75 mcg HA per 0.5 ml dose of 2017 A/H7N9 IIV unadjuvanted administered intramuscularly on Day 1 (n=50). Phosphate buffered saline (PBS) diluent may be used to achieve targeted dosages.

Participants will have prior administration of 2013 A/H7N9 IIV + MF59 or AS03 (1st) then 2013 A/H7N9 IIV 15 mcg (2nd). Then, 3.75 mcg Hemagglutinin (HA) per 0.5 ml dose of 2017 A/H7N9 Inactivated Influenza Virus Vaccine (IIV) + AS03 adjuvant administered intramuscularly on Day 1 (n=30) or 3.75 mcg HA per 0.5 ml dose of 2017 A/H7N9 IIV unadjuvanted administered intramuscularly on Day 1 (n=30). Phosphate buffered saline (PBS) diluent may be used to achieve targeted dosages.

Participants who are A/H7 IIV-Naïve. Then, 3.75 mcg Hemagglutinin (HA) per 0.5 ml dose of 2017 A/H7N9 Inactivated Influenza Virus Vaccine (IIV) + AS03 adjuvant administered intramuscularly on Day 1 (n=30) or 3.75 mcg HA per 0.5 ml dose of 2017 A/H7N9 IIV unadjuvanted administered intramuscularly on Day 1 (n=30). Phosphate buffered saline (PBS) diluent may be used to achieve targeted dosages.

Outcomes

Primary Outcome Measures

Geometric Mean Titers (GMT) of Serum Hemagglutination Inhibition (HAI) Antibodies on Day 22 Against the 2017 Influenza A/H7N9 Vaccine Virus
Blood was collected for HAI assay which was conducted with the 2017 H7N9 vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. The geometric mean titer was calculated for each study arm and stratum from the available results at 21 days post study vaccination (Day 22).
Geometric Mean Titers (GMT) of Serum Neutralizing (Neut) Antibodies on Day 22 Against the 2017 Influenza A/H7N9 Vaccine Virus
Blood was collected for Neutralizing assay which was conducted with the 2017 H7N9 vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. The geometric mean titer was calculated for each study arm and stratum from the available results at 21 days post study vaccination (Day 22).
Number of Participants Reporting Serious Adverse Events (SAEs)
SAEs included any untoward medical occurrence that resulted in death; was life threatening; was a persistent/significant disability/incapacity; required inpatient hospitalization or prolongation or a congenital anomaly/birth defect.
Number of Participants Reporting Clinical Safety Laboratory Adverse Events (AEs)
Laboratory parameters include alanine aminotransferase (ALT), bilirubin, creatinine, hemoglobin, platelets and white blood cells (WBC). Thresholds for adverse events were considered as ALT 44 IU/L or greater (female) or 61 IU/L or greater (male); bilirubin 1.30 mg/dL or greater; creatinine 1.1 mg/dL or greater (female) or 1.4 mg/dL or greater (male); hemoglobin 11.4 g/dL or lower (female) or 12.4 g/dL or lower (male); platelets 139 x10^3/µL or below or 416 x10^3/µL or greater; or WBC or 3.9 x10^3/µL or lower or 10.6 x10^3/µL or higher.
Number of Participants Reporting Solicited Injection Site Reactogenicity Events
Injection site AEs solicited on a memory aid provided to participants included Pain, Tenderness, Itching/Pruritus, Ecchymosis/Bruising (functional grade based on interference with daily activities), Ecchymosis/Bruising (any measured value >0mm), Erythema/Redness (functional grade), Erythema/ Redness (any measured value >0mm), Induration/Swelling (functional grade), and Induration/Swelling (any measured value >0mm). Participants are considered reporting the injection site AE if they reported mild or greater severity at any time during the 8 days at or following the first vaccination.
Number of Participants Reporting Solicited Systemic Reactogenicity Events
Systemic AEs solicited on a memory aid provided to participants included Elevated Oral Temperature, Feverishness, Fatigue, Malaise, Myalgia, Arthralgia, Headache, and Nausea. Participants are considered reporting the systemic AE if they reported mild or greater severity at any time during the 8 days at or following the first vaccination.
Percentage of Participants Achieving Hemagglutination Inhibition (HAI) Antibody Titer of 1:40 or Greater on Day 22 Against the 2017 Influenza A/H7N9 Vaccine Virus
Blood was collected for the HAI assay conducted with the 2017 H7N9 vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. The percentage of participants with HAI titer >= 1:40 was calculated for each study arm and stratum from the available results at 21 days post study vaccination (Day 22).
Percentage of Participants Achieving Neutralizing (Neut) Antibody Titer of 1:40 or Greater on Day 22 Against the 2017 Influenza A/H7N9 Vaccine Virus
Blood was collected for the Neutralizing assay conducted with the 2017 H7N9 vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. The percentage of participants with Neut titer >= 1:40 was calculated for each study arm and stratum from the available results at 21 days post study vaccination (Day 22).
Percentage of Participants Achieving Hemagglutination Inhibition (HAI) Antibody Seroconversion on Day 22 Against the 2017 Influenza A/H7N9 Study Vaccine Virus
Blood was collected for the HAI assay conducted with the 2017 H7N9 vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. Seroconversion was defined as HAI pre-vaccination titer <1:10 and post-vaccination titer >= 1:40 or pre-vaccination titer >= 1:10 and minimum 4-fold rise in post-vaccination antibody titer. 21 days after study vaccination is Day 22.
Percentage of Participants Achieving Neutralizing (Neut) Antibody Seroconversion on Day 22 Against the 2017 Influenza A/H7N9 Study Vaccine Virus
Blood was collected for the Neutralizing assay conducted with the 2017 H7N9 vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. Seroconversion was defined as Neut pre-vaccination titer <1:10 and post-vaccination titer >= 1:40 or pre-vaccination titer >= 1:10 and minimum 4-fold rise in post-vaccination antibody titer. 21 days after study vaccination is Day 22.

Secondary Outcome Measures

Geometric Mean Titers (GMT) of Serum Hemagglutination Inhibition (HAI) Antibodies on Day 8 Against the 2017 Influenza A/ H7N9 Vaccine Virus
Blood was collected for HAI assay which was conducted with the 2017 H7N9 vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. The geometric mean titer was calculated for each study arm and stratum from the available results at 7 days post study vaccination (Day 8).
Geometric Mean Titers (GMT) of Serum Hemagglutination Inhibition (HAI) Antibodies on Day 181 Against the 2017 Influenza A/ H7N9 Vaccine Virus
Blood was collected for HAI assay which was conducted with the 2017 H7N9 vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. The geometric mean titer was calculated for each study arm and stratum from the available results at 180 days post study vaccination (Day 181).
Geometric Mean Titers (GMT) of Serum Neutralizing (Neut) Antibodies on Day 8 Against the 2017 Influenza A/H7N9 Vaccine Virus
Blood was collected for Neutralizing assay which was conducted with the 2017 H7N9 vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. The geometric mean titer was calculated for each study arm and stratum from the available results at 7 days post study vaccination (Day 8).
Geometric Mean Titers (GMT) of Serum Neutralizing (Neut) Antibodies on Day 181 Against the 2017 Influenza A/H7N9 Vaccine Virus
Blood was collected for Neutralizing assay which was conducted with the 2017 H7N9 vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. The geometric mean titer was calculated for each study arm and stratum from the available results at 180 days post study vaccination (Day 181).
Geometric Mean Titers (GMTs) of Serum Hemagglutination Inhibition (HAI) Antibodies on Day 22 Against the 2013 Influenza A/H7N9 Vaccine Virus (Priming Vaccine Virus)
Blood was collected for HAI assay which was conducted with the 2013 H7N9 priming vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. The geometric mean titer was calculated for each study arm and stratum from the available results at 21 days post study vaccination (Day 22).
Geometric Mean Titers (GMTs) of Serum Neutralizing (Neut) Antibodies on Day 22 Against the 2013 Influenza A/H7N9 Vaccine Virus (Priming Vaccine Virus)
Blood was collected for Neutralizing assay which was conducted with the 2013 H7N9 priming vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. The geometric mean titer was calculated for each study arm and stratum from the available results at 21 days post study vaccination (Day 22).
Number of Participants Reporting Medically-Attended Adverse Events (MAAEs), New-Onset Chronic Medical Conditions (NOCMCs), and Potentially Immune-Mediated Medical Conditions (PIMMCs)
Participants were queried at each visit for the occurrence of medically-attended adverse events (MAAEs), including new-onset chronic medical conditions (NOCMCs) and potentially immune-mediated medical conditions (PIMMCs) throughout the duration of the study.
Number of Participants Reporting Unsolicited Non-serious AEs
Adverse events were defined as any untoward medical occurrence in a participant administered a pharmaceutical product regardless of its causal relationship to the study treatment. Non-serious AEs were collected from participants at follow up visits through 21 days after study vaccination.
Percentage of Participants Achieving Hemagglutination Inhibition (HAI) Antibody Titer of 1:40 or Greater on Day 8 Against the 2017 Influenza A/H7N9 Vaccine Virus
Blood was collected for the HAI assay conducted with the 2017 H7N9 vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. The percentage of participants with HAI titer >= 1:40 was calculated for each study arm and stratum from the available results at 7 days post second vaccination (Day 8).
Percentage of Participants Achieving Hemagglutination Inhibition (HAI) Antibody Titer of 1:40 or Greater on Day 181 Against the 2017 Influenza A/H7N9 Vaccine Virus
Blood was collected for the HAI assay conducted with the 2017 H7N9 vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. The percentage of participants with HAI titer >= 1:40 was calculated for each study arm and stratum from the available results at 180 days post second vaccination (Day 181).
Percentage of Participants Achieving Neutralizing (Neut) Antibody Titer of 1:40 or Greater on Day 8 Against the 2017 Influenza A/H7N9 Vaccine Virus
Blood was collected for the Neutralizing assay conducted with the 2017 H7N9 vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. The percentage of participants with Neut titer >= 1:40 was calculated for each study arm and stratum from the available results at 7 days post study vaccination (Day 8).
Percentage of Participants Achieving Neutralizing (Neut) Antibody Titer of 1:40 or Greater on Day 181 Against the 2017 Influenza A/H7N9 Vaccine Virus
Blood was collected for the Neutralizing assay conducted with the 2017 H7N9 vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. The percentage of participants with Neut titer >= 1:40 was calculated for each study arm and stratum from the available results at 180 days post study vaccination (Day 181).
Percentage of Participants Achieving Hemagglutination Inhibition (HAI) Antibody Seroconversion on Day 8 Against the 2017 Influenza A/H7N9 Vaccine Virus
Blood was collected for the HAI assay conducted with the 2017 H7N9 vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. Seroconversion was defined as HAI pre-vaccination titer <1:10 and post-vaccination titer >= 1:40 or pre-vaccination titer >= 1:10 and minimum 4-fold rise in post-vaccination antibody titer. Day 8 is 7 days post study vaccination.
Percentage of Participants Achieving Hemagglutination Inhibition (HAI) Antibody Seroconversion on Day 181 Against the 2017 Influenza A/H7N9 Vaccine Virus
Blood was collected for the HAI assay conducted with the 2017 H7N9 vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. Seroconversion was defined as HAI pre-vaccination titer <1:10 and post-vaccination titer >= 1:40 or pre-vaccination titer >= 1:10 and minimum 4-fold rise in post-vaccination antibody titer. Day 181 is 180 days post study vaccination.
Percentage of Participants Achieving Neutralizing (Neut) Antibody Seroconversion on Day 8 Against the 2017 Influenza A/H7N9 Vaccine Virus
Blood was collected for the Neutralizing assay conducted with the 2017 H7N9 vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. Seroconversion was defined as Neut pre-vaccination titer <1:10 and post-vaccination titer >= 1:40 or pre-vaccination titer >= 1:10 and minimum 4-fold rise in post-vaccination antibody titer. 7 days after study vaccination is Day 8.
Percentage of Participants Achieving Neutralizing (Neut) Antibody Seroconversion on Day 181 Against the 2017 Influenza A/H7N9 Vaccine Virus
Blood was collected for the Neutralizing assay conducted with the 2017 H7N9 vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. Seroconversion was defined as Neut pre-vaccination titer <1:10 and post-vaccination titer >= 1:40 or pre-vaccination titer >= 1:10 and minimum 4-fold rise in post-vaccination antibody titer. 180 days after study vaccination is Day 181.
Percentage of Participants Achieving Hemagglutination Inhibition (HAI) Antibody Titer of 1:40 or Greater on Day 22 Against the 2013 Influenza A/H7N9 Vaccine Virus (Priming Vaccine Virus)
Blood was collected for the HAI assay conducted with the 2013 H7N9 priming vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. The percentage of participants with HAI titer >= 1:40 was calculated for each study arm and stratum from the available results at 21 days post second vaccination (Day 22).
Percentage of Participants Achieving Neutralizing (Neut) Antibody Titer of 1:40 or Greater on Day 22 Against the 2013 Influenza A/H7N9 Vaccine Virus (Priming Vaccine Virus)
Blood was collected for the Neutralizing assay conducted with the 2013 H7N9 priming vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. The percentage of participants with Neut titer >= 1:40 was calculated for each study arm and stratum from the available results at 21 days post study vaccination (Day 22).
Percentage of Participants Achieving Hemagglutination Inhibition (HAI) Antibody Seroconversion on Day 22 Against the 2013 Influenza A/H7N9 Vaccine Virus (Priming Vaccine Virus)
Blood was collected for the HAI assay conducted with the 2013 H7N9 priming vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. Seroconversion was defined as HAI pre-vaccination titer <1:10 and post-vaccination titer >= 1:40 or pre-vaccination titer >= 1:10 and minimum 4-fold rise in post-vaccination antibody titer. Day 22 is 21 days post study vaccination.
Percentage of Participants Achieving Neutralizing (Neut) Antibody Seroconversion on Day 22 Against the 2013 Influenza A/H7N9 Vaccine Virus (Priming Vaccine Virus)
Blood was collected for the Neutralizing assay conducted with the 2013 H7N9 priming vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. Seroconversion was defined as Neut pre-vaccination titer <1:10 and post-vaccination titer >= 1:40 or pre-vaccination titer >= 1:10 and minimum 4-fold rise in post-vaccination antibody titer. 21 days after study vaccination is Day 22.

Full Information

First Posted
November 8, 2018
Last Updated
July 8, 2021
Sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
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1. Study Identification

Unique Protocol Identification Number
NCT03738241
Brief Title
2017 A/H7N9 IIV Revaccination
Official Title
A Phase II Study to Assess the Safety, Reactogenicity and Immunogenicity of a Single Dose of 2017 A/H7N9 Inactivated Influenza Vaccine (IIV) Administered Intramuscularly With or Without AS03 Adjuvant in 2013 A/H7N9 IIV Primed or A/H7 IIV Naïve Subjects
Study Type
Interventional

2. Study Status

Record Verification Date
November 8, 2018
Overall Recruitment Status
Completed
Study Start Date
December 18, 2018 (Actual)
Primary Completion Date
June 19, 2020 (Actual)
Study Completion Date
June 19, 2020 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
National Institute of Allergy and Infectious Diseases (NIAID)

4. Oversight

Studies a U.S. FDA-regulated Drug Product
Yes
Studies a U.S. FDA-regulated Device Product
No
Product Manufactured in and Exported from the U.S.
No

5. Study Description

Brief Summary
This is a Phase II clinical trial in up to 420 males and non-pregnant females, 19 to 70 years of age, inclusive, who are in good health and meet all eligibility criteria. This clinical trial is designed to assess the safety, reactogenicity and immunogenicity of one dose of a monovalent inactivated split influenza 2017 A/H7N9 virus vaccine (2017 A/H7N9 IIV), administered intramuscularly (IM) at 3.75 mcg hemagglutinin (HA) per dose, given with or without AS03 adjuvant to subjects primed with a monovalent inactivated split influenza 2013 A/H7N9 virus vaccine (2013 A/H7N9 IIV) in DMID Protocols 13-0032 and 13-0033, or to those who are A/H7 IIV-naïve. Phosphate buffered saline (PBS) diluent will be used to achieve the targeted dosage. The study will be conducted at 9 Vaccine and Treatment Evaluation Unit (VTEU) sites (including their subcontractors). Study duration is approximately 17 months with subject participation duration up to 13 months. The primary objectives are: 1) to assess the safety and reactogenicity of 2017 A/H7N9 IIV given with or without AS03 adjuvant following receipt of one dose of study vaccine; 2) to assess the serum hemagglutination inhibition (HAI) and neutralizing (Neut) antibody responses following receipt of the study vaccine.
Detailed Description
This is a Phase II clinical trial in up to 420 males and non-pregnant females, 19 to 70 years of age, inclusive, who are in good health and meet all eligibility criteria, which include a screening erythrocyte sedimentation rate (ESR) laboratory evaluation. This clinical trial is designed to assess the safety, reactogenicity and immunogenicity of one dose of a monovalent inactivated split influenza 2017 A/H7N9 virus vaccine (2017 A/H7N9 IIV) manufactured by Sanofi Pasteur (SP), administered intramuscularly (IM) at 3.75 mcg hemagglutinin (HA) per dose, given with or without AS03 adjuvant manufactured by GlaxoSmithKline Biologicals (GSK), to subjects primed with a monovalent inactivated split influenza 2013 A/H7N9 virus vaccine (2013 A/H7N9 IIV) in DMID Protocols 13-0032 and 13-0033, or to those who are A/H7 IIV-naïve. Phosphate buffered saline (PBS) diluent manufactured by Patheon Manufacturing Services LLC will be used to achieve the targeted dosage. Subjects who received the 2013 A/H7N9 IIV in DMID Protocols 13-0032 and 13-0033 or are A/H7 IIV-naïve will be stratified by prior receipt of 2013 A/H7N9 IIV, as well as by site and prior receipt of licensed, seasonal influenza vaccine (defined as receipt of at least one of the 2017-2018 and/or 2018-2019 licensed, seasonal influenza vaccines versus none), then randomly assigned in a 1:1 ratio to 1 of 2 treatment arms to receive 1 dose of 2017 A/H7N9 IIV at 3.75 mcg HA per dose with or without AS03 adjuvant. The study will be conducted at 9 Vaccine and Treatment Evaluation Unit (VTEU) sites (including their subcontractors). Study duration is approximately 17 months with subject participation duration up to 13 months. The primary objectives are: 1) to assess the safety and reactogenicity of 2017 A/H7N9 IIV given with or without AS03 adjuvant following receipt of one dose of study vaccine; 2) to assess the serum hemagglutination inhibition (HAI) and neutralizing (Neut) antibody responses following receipt of the study vaccine. Secondary objectives are: 1) to assess unsolicited non-serious adverse events (AEs) following receipt of the study vaccine; 2) to assess medically-attended adverse events (MAAEs), including new-onset chronic medical conditions (NOCMCs) and potentially immune-mediated medical conditions (PIMMCs), following receipt of the study vaccine; 3) To assess the kinetics and durability of serum HAI and Neut antibody responses following receipt of the study vaccine.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Avian Influenza, Influenza Immunisation
Keywords
A/H7N9 Inactivated Influenza Vaccine, AS03 Adjuvant, Immunogenicity, Influenza, Phase II, Reactogenicity, Safety, Vaccine

7. Study Design

Primary Purpose
Prevention
Study Phase
Phase 2
Interventional Study Model
Parallel Assignment
Masking
ParticipantInvestigator
Allocation
Randomized
Enrollment
304 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Arm 1
Arm Type
Experimental
Arm Description
Participants will have prior administration of 2013 A/H7N9 IIV with MF59. Then, 3.75 mcg Hemagglutinin (HA) per 0.5 ml dose of 2017 A/H7N9 Inactivated Influenza Virus Vaccine (IIV) + AS03 adjuvant administered intramuscularly on Day 1 (n=50) or 3.75 mcg HA per 0.5 ml dose of 2017 A/H7N9 IIV unadjuvanted administered intramuscularly on Day 1 (n=50). Phosphate buffered saline (PBS) diluent may be used to achieve targeted dosages.
Arm Title
Arm 2
Arm Type
Experimental
Arm Description
Participants will have prior administration of 2013 A/H7N9 IIV with AS03. Then, 3.75 mcg Hemagglutinin (HA) per 0.5 ml dose of 2017 A/H7N9 Inactivated Influenza Virus Vaccine (IIV) + AS03 adjuvant administered intramuscularly on Day 1 (n=50) or 3.75 mcg HA per 0.5 ml dose of 2017 A/H7N9 IIV unadjuvanted administered intramuscularly on Day 1 (n=50). Phosphate buffered saline (PBS) diluent may be used to achieve targeted dosages.
Arm Title
Arm 3
Arm Type
Experimental
Arm Description
Participants will have prior administration of 2013 A/H7N9 IIV 15 mcg or 45 mcg unadjuvanted. Then, 3.75 mcg Hemagglutinin (HA) per 0.5 ml dose of 2017 A/H7N9 Inactivated Influenza Virus Vaccine (IIV) + AS03 adjuvant administered intramuscularly on Day 1 (n=50) or 3.75 mcg HA per 0.5 ml dose of 2017 A/H7N9 IIV unadjuvanted administered intramuscularly on Day 1 (n=50). Phosphate buffered saline (PBS) diluent may be used to achieve targeted dosages.
Arm Title
Arm 4
Arm Type
Experimental
Arm Description
Participants will have prior administration of 2013 A/H7N9 IIV + MF59 or AS03 (1st) then 2013 A/H7N9 IIV 15 mcg (2nd). Then, 3.75 mcg Hemagglutinin (HA) per 0.5 ml dose of 2017 A/H7N9 Inactivated Influenza Virus Vaccine (IIV) + AS03 adjuvant administered intramuscularly on Day 1 (n=30) or 3.75 mcg HA per 0.5 ml dose of 2017 A/H7N9 IIV unadjuvanted administered intramuscularly on Day 1 (n=30). Phosphate buffered saline (PBS) diluent may be used to achieve targeted dosages.
Arm Title
Arm 5
Arm Type
Experimental
Arm Description
Participants who are A/H7 IIV-Naïve. Then, 3.75 mcg Hemagglutinin (HA) per 0.5 ml dose of 2017 A/H7N9 Inactivated Influenza Virus Vaccine (IIV) + AS03 adjuvant administered intramuscularly on Day 1 (n=30) or 3.75 mcg HA per 0.5 ml dose of 2017 A/H7N9 IIV unadjuvanted administered intramuscularly on Day 1 (n=30). Phosphate buffered saline (PBS) diluent may be used to achieve targeted dosages.
Intervention Type
Biological
Intervention Name(s)
A/H7N9
Intervention Description
Monovalent split 2017 A/H7N9 Inactivated Influenza Virus Vaccine containing the Hemagglutinin (HA) and Neuraminidase (NA) from low pathogenic avian influenza A/Hong Kong/125/2017 (H7N9) and the PB2, PB1, PA, NP, M and NS from A/Puerto Rico/8/1934 (H1N1). The HA content of the 2017 A/H7N9 vaccine formulations were determined by Single Radial Immunodiffusion (SRID) assay to be approximately two times higher (14.45 mcg of HA per 0.5 mL dose) than the targeted HA content on the label (7.5 mcg of HA per 0.5 mL dose).
Intervention Type
Drug
Intervention Name(s)
AS03
Intervention Description
AS03 oil-in-water emulsion-based adjuvant system containing DL-alpha-tocopherol, squalene, polysorbate 80, and a buffer.
Intervention Type
Other
Intervention Name(s)
Phosphate Buffered Saline (PBS) diluent
Intervention Description
0.006M PBS diluent for Influenza Virus Vaccine.
Primary Outcome Measure Information:
Title
Geometric Mean Titers (GMT) of Serum Hemagglutination Inhibition (HAI) Antibodies on Day 22 Against the 2017 Influenza A/H7N9 Vaccine Virus
Description
Blood was collected for HAI assay which was conducted with the 2017 H7N9 vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. The geometric mean titer was calculated for each study arm and stratum from the available results at 21 days post study vaccination (Day 22).
Time Frame
Day 22
Title
Geometric Mean Titers (GMT) of Serum Neutralizing (Neut) Antibodies on Day 22 Against the 2017 Influenza A/H7N9 Vaccine Virus
Description
Blood was collected for Neutralizing assay which was conducted with the 2017 H7N9 vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. The geometric mean titer was calculated for each study arm and stratum from the available results at 21 days post study vaccination (Day 22).
Time Frame
Day 22
Title
Number of Participants Reporting Serious Adverse Events (SAEs)
Description
SAEs included any untoward medical occurrence that resulted in death; was life threatening; was a persistent/significant disability/incapacity; required inpatient hospitalization or prolongation or a congenital anomaly/birth defect.
Time Frame
Day 1 through Day 366
Title
Number of Participants Reporting Clinical Safety Laboratory Adverse Events (AEs)
Description
Laboratory parameters include alanine aminotransferase (ALT), bilirubin, creatinine, hemoglobin, platelets and white blood cells (WBC). Thresholds for adverse events were considered as ALT 44 IU/L or greater (female) or 61 IU/L or greater (male); bilirubin 1.30 mg/dL or greater; creatinine 1.1 mg/dL or greater (female) or 1.4 mg/dL or greater (male); hemoglobin 11.4 g/dL or lower (female) or 12.4 g/dL or lower (male); platelets 139 x10^3/µL or below or 416 x10^3/µL or greater; or WBC or 3.9 x10^3/µL or lower or 10.6 x10^3/µL or higher.
Time Frame
Day 1 to Day 8
Title
Number of Participants Reporting Solicited Injection Site Reactogenicity Events
Description
Injection site AEs solicited on a memory aid provided to participants included Pain, Tenderness, Itching/Pruritus, Ecchymosis/Bruising (functional grade based on interference with daily activities), Ecchymosis/Bruising (any measured value >0mm), Erythema/Redness (functional grade), Erythema/ Redness (any measured value >0mm), Induration/Swelling (functional grade), and Induration/Swelling (any measured value >0mm). Participants are considered reporting the injection site AE if they reported mild or greater severity at any time during the 8 days at or following the first vaccination.
Time Frame
Day 1 through Day 8
Title
Number of Participants Reporting Solicited Systemic Reactogenicity Events
Description
Systemic AEs solicited on a memory aid provided to participants included Elevated Oral Temperature, Feverishness, Fatigue, Malaise, Myalgia, Arthralgia, Headache, and Nausea. Participants are considered reporting the systemic AE if they reported mild or greater severity at any time during the 8 days at or following the first vaccination.
Time Frame
Day 1 through Day 8
Title
Percentage of Participants Achieving Hemagglutination Inhibition (HAI) Antibody Titer of 1:40 or Greater on Day 22 Against the 2017 Influenza A/H7N9 Vaccine Virus
Description
Blood was collected for the HAI assay conducted with the 2017 H7N9 vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. The percentage of participants with HAI titer >= 1:40 was calculated for each study arm and stratum from the available results at 21 days post study vaccination (Day 22).
Time Frame
Day 22
Title
Percentage of Participants Achieving Neutralizing (Neut) Antibody Titer of 1:40 or Greater on Day 22 Against the 2017 Influenza A/H7N9 Vaccine Virus
Description
Blood was collected for the Neutralizing assay conducted with the 2017 H7N9 vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. The percentage of participants with Neut titer >= 1:40 was calculated for each study arm and stratum from the available results at 21 days post study vaccination (Day 22).
Time Frame
Day 22
Title
Percentage of Participants Achieving Hemagglutination Inhibition (HAI) Antibody Seroconversion on Day 22 Against the 2017 Influenza A/H7N9 Study Vaccine Virus
Description
Blood was collected for the HAI assay conducted with the 2017 H7N9 vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. Seroconversion was defined as HAI pre-vaccination titer <1:10 and post-vaccination titer >= 1:40 or pre-vaccination titer >= 1:10 and minimum 4-fold rise in post-vaccination antibody titer. 21 days after study vaccination is Day 22.
Time Frame
Day 22
Title
Percentage of Participants Achieving Neutralizing (Neut) Antibody Seroconversion on Day 22 Against the 2017 Influenza A/H7N9 Study Vaccine Virus
Description
Blood was collected for the Neutralizing assay conducted with the 2017 H7N9 vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. Seroconversion was defined as Neut pre-vaccination titer <1:10 and post-vaccination titer >= 1:40 or pre-vaccination titer >= 1:10 and minimum 4-fold rise in post-vaccination antibody titer. 21 days after study vaccination is Day 22.
Time Frame
Day 22
Secondary Outcome Measure Information:
Title
Geometric Mean Titers (GMT) of Serum Hemagglutination Inhibition (HAI) Antibodies on Day 8 Against the 2017 Influenza A/ H7N9 Vaccine Virus
Description
Blood was collected for HAI assay which was conducted with the 2017 H7N9 vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. The geometric mean titer was calculated for each study arm and stratum from the available results at 7 days post study vaccination (Day 8).
Time Frame
Day 8
Title
Geometric Mean Titers (GMT) of Serum Hemagglutination Inhibition (HAI) Antibodies on Day 181 Against the 2017 Influenza A/ H7N9 Vaccine Virus
Description
Blood was collected for HAI assay which was conducted with the 2017 H7N9 vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. The geometric mean titer was calculated for each study arm and stratum from the available results at 180 days post study vaccination (Day 181).
Time Frame
Day 181
Title
Geometric Mean Titers (GMT) of Serum Neutralizing (Neut) Antibodies on Day 8 Against the 2017 Influenza A/H7N9 Vaccine Virus
Description
Blood was collected for Neutralizing assay which was conducted with the 2017 H7N9 vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. The geometric mean titer was calculated for each study arm and stratum from the available results at 7 days post study vaccination (Day 8).
Time Frame
Day 8
Title
Geometric Mean Titers (GMT) of Serum Neutralizing (Neut) Antibodies on Day 181 Against the 2017 Influenza A/H7N9 Vaccine Virus
Description
Blood was collected for Neutralizing assay which was conducted with the 2017 H7N9 vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. The geometric mean titer was calculated for each study arm and stratum from the available results at 180 days post study vaccination (Day 181).
Time Frame
Day 181
Title
Geometric Mean Titers (GMTs) of Serum Hemagglutination Inhibition (HAI) Antibodies on Day 22 Against the 2013 Influenza A/H7N9 Vaccine Virus (Priming Vaccine Virus)
Description
Blood was collected for HAI assay which was conducted with the 2013 H7N9 priming vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. The geometric mean titer was calculated for each study arm and stratum from the available results at 21 days post study vaccination (Day 22).
Time Frame
Day 22
Title
Geometric Mean Titers (GMTs) of Serum Neutralizing (Neut) Antibodies on Day 22 Against the 2013 Influenza A/H7N9 Vaccine Virus (Priming Vaccine Virus)
Description
Blood was collected for Neutralizing assay which was conducted with the 2013 H7N9 priming vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. The geometric mean titer was calculated for each study arm and stratum from the available results at 21 days post study vaccination (Day 22).
Time Frame
Day 22
Title
Number of Participants Reporting Medically-Attended Adverse Events (MAAEs), New-Onset Chronic Medical Conditions (NOCMCs), and Potentially Immune-Mediated Medical Conditions (PIMMCs)
Description
Participants were queried at each visit for the occurrence of medically-attended adverse events (MAAEs), including new-onset chronic medical conditions (NOCMCs) and potentially immune-mediated medical conditions (PIMMCs) throughout the duration of the study.
Time Frame
Day 1 through Day 366
Title
Number of Participants Reporting Unsolicited Non-serious AEs
Description
Adverse events were defined as any untoward medical occurrence in a participant administered a pharmaceutical product regardless of its causal relationship to the study treatment. Non-serious AEs were collected from participants at follow up visits through 21 days after study vaccination.
Time Frame
Day 1 through Day 22
Title
Percentage of Participants Achieving Hemagglutination Inhibition (HAI) Antibody Titer of 1:40 or Greater on Day 8 Against the 2017 Influenza A/H7N9 Vaccine Virus
Description
Blood was collected for the HAI assay conducted with the 2017 H7N9 vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. The percentage of participants with HAI titer >= 1:40 was calculated for each study arm and stratum from the available results at 7 days post second vaccination (Day 8).
Time Frame
Day 8
Title
Percentage of Participants Achieving Hemagglutination Inhibition (HAI) Antibody Titer of 1:40 or Greater on Day 181 Against the 2017 Influenza A/H7N9 Vaccine Virus
Description
Blood was collected for the HAI assay conducted with the 2017 H7N9 vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. The percentage of participants with HAI titer >= 1:40 was calculated for each study arm and stratum from the available results at 180 days post second vaccination (Day 181).
Time Frame
Day 181
Title
Percentage of Participants Achieving Neutralizing (Neut) Antibody Titer of 1:40 or Greater on Day 8 Against the 2017 Influenza A/H7N9 Vaccine Virus
Description
Blood was collected for the Neutralizing assay conducted with the 2017 H7N9 vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. The percentage of participants with Neut titer >= 1:40 was calculated for each study arm and stratum from the available results at 7 days post study vaccination (Day 8).
Time Frame
Day 8
Title
Percentage of Participants Achieving Neutralizing (Neut) Antibody Titer of 1:40 or Greater on Day 181 Against the 2017 Influenza A/H7N9 Vaccine Virus
Description
Blood was collected for the Neutralizing assay conducted with the 2017 H7N9 vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. The percentage of participants with Neut titer >= 1:40 was calculated for each study arm and stratum from the available results at 180 days post study vaccination (Day 181).
Time Frame
Day 181
Title
Percentage of Participants Achieving Hemagglutination Inhibition (HAI) Antibody Seroconversion on Day 8 Against the 2017 Influenza A/H7N9 Vaccine Virus
Description
Blood was collected for the HAI assay conducted with the 2017 H7N9 vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. Seroconversion was defined as HAI pre-vaccination titer <1:10 and post-vaccination titer >= 1:40 or pre-vaccination titer >= 1:10 and minimum 4-fold rise in post-vaccination antibody titer. Day 8 is 7 days post study vaccination.
Time Frame
Day 8
Title
Percentage of Participants Achieving Hemagglutination Inhibition (HAI) Antibody Seroconversion on Day 181 Against the 2017 Influenza A/H7N9 Vaccine Virus
Description
Blood was collected for the HAI assay conducted with the 2017 H7N9 vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. Seroconversion was defined as HAI pre-vaccination titer <1:10 and post-vaccination titer >= 1:40 or pre-vaccination titer >= 1:10 and minimum 4-fold rise in post-vaccination antibody titer. Day 181 is 180 days post study vaccination.
Time Frame
Day 181
Title
Percentage of Participants Achieving Neutralizing (Neut) Antibody Seroconversion on Day 8 Against the 2017 Influenza A/H7N9 Vaccine Virus
Description
Blood was collected for the Neutralizing assay conducted with the 2017 H7N9 vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. Seroconversion was defined as Neut pre-vaccination titer <1:10 and post-vaccination titer >= 1:40 or pre-vaccination titer >= 1:10 and minimum 4-fold rise in post-vaccination antibody titer. 7 days after study vaccination is Day 8.
Time Frame
Day 8
Title
Percentage of Participants Achieving Neutralizing (Neut) Antibody Seroconversion on Day 181 Against the 2017 Influenza A/H7N9 Vaccine Virus
Description
Blood was collected for the Neutralizing assay conducted with the 2017 H7N9 vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. Seroconversion was defined as Neut pre-vaccination titer <1:10 and post-vaccination titer >= 1:40 or pre-vaccination titer >= 1:10 and minimum 4-fold rise in post-vaccination antibody titer. 180 days after study vaccination is Day 181.
Time Frame
Day 181
Title
Percentage of Participants Achieving Hemagglutination Inhibition (HAI) Antibody Titer of 1:40 or Greater on Day 22 Against the 2013 Influenza A/H7N9 Vaccine Virus (Priming Vaccine Virus)
Description
Blood was collected for the HAI assay conducted with the 2013 H7N9 priming vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. The percentage of participants with HAI titer >= 1:40 was calculated for each study arm and stratum from the available results at 21 days post second vaccination (Day 22).
Time Frame
Day 22
Title
Percentage of Participants Achieving Neutralizing (Neut) Antibody Titer of 1:40 or Greater on Day 22 Against the 2013 Influenza A/H7N9 Vaccine Virus (Priming Vaccine Virus)
Description
Blood was collected for the Neutralizing assay conducted with the 2013 H7N9 priming vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. The percentage of participants with Neut titer >= 1:40 was calculated for each study arm and stratum from the available results at 21 days post study vaccination (Day 22).
Time Frame
Day 22
Title
Percentage of Participants Achieving Hemagglutination Inhibition (HAI) Antibody Seroconversion on Day 22 Against the 2013 Influenza A/H7N9 Vaccine Virus (Priming Vaccine Virus)
Description
Blood was collected for the HAI assay conducted with the 2013 H7N9 priming vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. Seroconversion was defined as HAI pre-vaccination titer <1:10 and post-vaccination titer >= 1:40 or pre-vaccination titer >= 1:10 and minimum 4-fold rise in post-vaccination antibody titer. Day 22 is 21 days post study vaccination.
Time Frame
Day 22
Title
Percentage of Participants Achieving Neutralizing (Neut) Antibody Seroconversion on Day 22 Against the 2013 Influenza A/H7N9 Vaccine Virus (Priming Vaccine Virus)
Description
Blood was collected for the Neutralizing assay conducted with the 2013 H7N9 priming vaccine virus as the antigen. Each sample was tested at least twice per the laboratory's standard operating procedure, and the geometric mean of the replicate results was calculated as that sample's result. Seroconversion was defined as Neut pre-vaccination titer <1:10 and post-vaccination titer >= 1:40 or pre-vaccination titer >= 1:10 and minimum 4-fold rise in post-vaccination antibody titer. 21 days after study vaccination is Day 22.
Time Frame
Day 22

10. Eligibility

Sex
All
Minimum Age & Unit of Time
19 Years
Maximum Age & Unit of Time
70 Years
Accepts Healthy Volunteers
Accepts Healthy Volunteers
Eligibility Criteria
Inclusion Criteria: Subjects eligible to participate in this trial must meet all of the following inclusion criteria: Provide written informed consent prior to initiation of any study procedures. Are able to understand and comply with planned study procedures and be available for all study visits. Must agree to the collection of venous blood per protocol. Must agree to have residual specimens and samples/specimens collected during this trial specifically for the purpose of future research stored for future research use. Are males or non-pregnant females, 19 to 70 years of age, inclusive. Are in good health* *As determined by medical history and physical examination to evaluate acute or currently ongoing chronic medical diagnoses or conditions, defined as those that have been present for at least 90 days, which would affect the assessment of the safety of subjects or the immunogenicity of study vaccinations. Chronic medical diagnoses or conditions should be stable for the last 60 days (no hospitalizations, emergency room or urgent care for condition and no adverse symptoms that need medical intervention such as medication change/supplemental oxygen). This includes no change in chronic prescription medication, dose or frequency as a result of deterioration of the chronic medical diagnosis or condition in the 60 days prior to enrollment. Any prescription 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 deviation of this inclusion criterion. Any change in prescription medication due to improvement of a disease outcome, as determined by the site PI or appropriate sub-investigator, will not be considered a deviation of this inclusion criterion. Subjects may be on chronic or as needed (prn) medications if, in the opinion of the site PI or appropriate sub-investigator, they pose no additional risk to subject safety or assessment of reactogenicity and immunogenicity and do not indicate a worsening of medical diagnosis or condition. Similarly, medication changes subsequent to enrollment and study vaccination are acceptable provided there was no deterioration in the subject's chronic medical condition that necessitated a medication change, and there is no additional risk to the subject or interference with the evaluation of responses to study vaccination. Note: Topical, nasal and inhaled medications (except inhaled corticosteroids as outlined in the Subject Exclusion Criteria as well as herbals, vitamins and supplements are permitted. Oral temperature is less than 100.0 degrees Fahrenheit. Pulse is 47 to 100 beats per minute, inclusive. Systolic blood pressure is 85 to 150 mmHg, inclusive. Diastolic blood pressure is 55 to 95 mmHg, inclusive. Erythrocyte Sedimentation Rate (ESR) is less than 30 mm per hour. Women of childbearing potential** must use an acceptable contraception method*** from 30 days before study vaccination until 60 days after study vaccination. **Not sterilized via tubal ligation, bilateral oophorectomy, salpingectomy, hysterectomy, or successful Essure(R) placement (permanent, non-surgical, non-hormonal sterilization) with documented radiological confirmation test at least 90 days after the procedure, and still menstruating or <1 year has passed since the last menses if menopausal. ***Includes non-male sexual relationships, abstinence from sexual intercourse with a male partner, monogamous relationship with vasectomized partner who has been vasectomized for 180 days or more prior to the subject receiving the study vaccination, barrier methods such as condoms or diaphragms/cervical cap with spermicide, effective intrauterine devices, NuvaRing(R), and licensed hormonal methods such as implants, injectables or oral contraceptives ("the pill"). Women of childbearing potential must have a negative urine or serum pregnancy test within 24 hours prior to study vaccination. Received 1 or 2 doses of 2013 A/H7N9 IIV with or without AS03 or MF59 adjuvant in DMID Protocols 13-0032 or 13-0033, or are A/H7 IIV-naïve. Exclusion Criteria: Subjects eligible to participate in this trial must not meet any of the following exclusion criteria: Have an acute illness*, as determined by the site PI or appropriate sub-investigator, within 72 hours prior to study vaccination. *An acute illness which is nearly resolved with only minor residual symptoms remaining is allowable if, in the opinion of the site PI or appropriate sub-investigator, the residual symptoms will not interfere with the ability to assess safety parameters as required by the protocol. Have any medical disease or condition that, in the opinion of the site PI or appropriate sub-investigator, is a contraindication to study participation**. **Including acute or chronic medical disease or condition, defined as persisting for at least 90 days, that would place the subject at an unacceptable risk of injury, render the subject unable to meet the requirements of the protocol, or may interfere with the evaluation of responses or the subject's successful completion of this trial. Have immunosuppression as a result of an underlying illness or treatment, a recent history or current use of immunosuppressive or immunomodulating disease therapy. Use of cytotoxic anticancer chemotherapy or radiation therapy within 3 years prior to study vaccination. Have known active neoplastic disease or a history of any hematologic malignancy. Non-melanoma, treated, skin cancers are permitted. Have known human immunodeficiency virus (HIV), hepatitis B or hepatitis C infection. Have known hypersensitivity or allergy to eggs, egg or chicken protein, squalene-based adjuvants, or other components of the study vaccine. Have a history of severe reactions following previous immunization with licensed or unlicensed influenza vaccines. Have a personal or family history of narcolepsy. Have a history of Guillain-Barré Syndrome (GBS). Have a history of convulsions or encephalomyelitis within 90 days prior to study vaccination. Have a history of Potentially Immune-Mediated Medical Conditions (PIMMCs). Have a history of alcohol or drug abuse within 5 years prior to study vaccination. Have any diagnosis, current or past, of schizophrenia, bipolar disease or other psychiatric diagnosis that may interfere*** with subject compliance or safety evaluations. ***As determined by the site PI or appropriate sub-investigator. Have been hospitalized for psychiatric illness, history of suicide attempt, or confinement for danger to self or others within 10 years prior to study vaccination. Have taken oral or parenteral (including intra-articular) corticosteroids of any dose within 30 days prior to study vaccination. Have taken high-dose inhaled corticosteroids**** within 30 days prior to study vaccination. ****High-dose defined as per age as using inhaled high-dose per reference chart in the National Heart, Lung and Blood Institute Guidelines for the Diagnosis and Management of Asthma (EPR-3) or other lists published in UPTODATE. Received or plan to receive a licensed, live vaccine within 30 days before or after study vaccination. Received or plan to receive a licensed, inactivated vaccine (excluding all licensed, seasonal IIVs) within 14 days before or after study vaccination. Received or plan to receive a licensed, seasonal IIV within 21 days before or after study vaccination. Received immunoglobulin or other blood products (except Rho D immunoglobulin) within 90 days prior to study vaccination. Received an experimental agent***** within 30 days prior to study vaccination or expect to receive an experimental agent****** during the trial-reporting period*******. *****Including vaccine, drug, biologic, device, blood product, or medication. ******Other than from participation in this trial. *******Approximately 12 months after study vaccination. Are participating or plan to participate in another clinical trial with an interventional agent******** that will be received during the trial-reporting period*********. ********Including licensed or unlicensed vaccine, drug, biologic, device, blood product, or medication. *********Approximately 12 months after study vaccination. Have a history of influenza A/H7 subtype infection. Had substantial direct contact********** with live or freshly slaughtered poultry or pigeons while in mainland China within the past five years. **********Substantial direct contact is defined as visited a poultry farm and/or a live poultry market. Occupational exposure to or substantial direct physical contact*********** with birds in the past year and through 21 days after study vaccination. ***********Exposure to free range chickens in the yard is exclusionary. Casual contact with birds at petting zoos or county or state fairs or having pet birds does not exclude subjects from study participation. Female subjects who are breastfeeding. Plan to travel outside the US (continental US, Hawaii and Alaska) from the time of study vaccination through 21 days after study vaccination.
Facility Information:
Facility Name
Emory Children's Center - Pediatric Infectious Diseases
City
Atlanta
State/Province
Georgia
ZIP/Postal Code
30322-1014
Country
United States
Facility Name
University of Iowa - Vaccine Research and Education Unit
City
Iowa City
State/Province
Iowa
ZIP/Postal Code
52242-2600
Country
United States
Facility Name
University of Maryland Baltimore - School of Medicine - Medicine
City
Baltimore
State/Province
Maryland
ZIP/Postal Code
21201-1509
Country
United States
Facility Name
Saint Louis University - Center for Vaccine Development
City
Saint Louis
State/Province
Missouri
ZIP/Postal Code
63104-1015
Country
United States
Facility Name
Cincinnati Children's Hospital Medical Center - Infectious Diseases
City
Cincinnati
State/Province
Ohio
ZIP/Postal Code
45229-3039
Country
United States
Facility Name
Vanderbilt University Medical Center - Infectious Diseases
City
Nashville
State/Province
Tennessee
ZIP/Postal Code
37232-0011
Country
United States
Facility Name
The University of Texas Medical Branch - Sealy Center for Vaccine Development (SCVD)
City
Galveston
State/Province
Texas
ZIP/Postal Code
77555-1121
Country
United States
Facility Name
Baylor College of Medicine - Molecular Virology and Microbiology
City
Houston
State/Province
Texas
ZIP/Postal Code
77030-3411
Country
United States
Facility Name
Kaiser Permanente Washington Health Research Institute - Vaccines and Infectious Diseases
City
Seattle
State/Province
Washington
ZIP/Postal Code
98101-1466
Country
United States

12. IPD Sharing Statement

Learn more about this trial

2017 A/H7N9 IIV Revaccination

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