- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03312231
Sanofi 2017 H7N9 With/Without AS03 in Adults/Elderly
A Phase II Study in Healthy Adults 19 Years and Older to Assess the Safety, Reactogenicity and Immunogenicity of a Sanofi Pasteur A/H7N9 Inactivated Influenza Vaccine Administered Intramuscularly With or Without AS03 Adjuvant
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Study Type
Enrollment (Actual)
Phase
- Phase 2
Contacts and Locations
Study Locations
-
-
Georgia
-
Decatur, Georgia, United States, 30030-1705
- The Hope Clinic of Emory University
-
-
Iowa
-
Iowa City, Iowa, United States, 52242-2600
- University of Iowa - Vaccine Research and Education Unit
-
-
Maryland
-
Baltimore, Maryland, United States, 21201-1509
- University of Maryland, School of Medicine, Center for Vaccine Development and Global Health
-
-
North Carolina
-
Durham, North Carolina, United States, 27704
- Duke Vaccine and Trials Unit
-
-
Washington
-
Seattle, Washington, United States, 98101-1466
- Kaiser Permanente Washington Health Research Institute
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
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.
- Are males or non-pregnant females, 19 years of age and older, 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, ER, 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 principal investigator 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 principal investigator 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 (with the exception of inhaled corticosteroids as outlined in the Subject Exclusion Criteria), herbals, vitamins, and supplements are permitted.
- Oral temperature is less than 100.0 degrees Fahrenheit.
- Pulse is 47 to 100 bpm, inclusive.
- Systolic blood pressure is 85 to 150 mmHg, inclusive (subjects <65 years of age), 85 to 160 mmHg, inclusive (subjects = / > 65 years of age).
- 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 first study vaccination until 60 days after last 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 of the last menses if menopausal.
**Acceptable contraception 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 first study vaccination, barrier methods such as condoms or diaphragms with spermicide or foam, 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.
Exclusion Criteria:
Have an acute illness*, as determined by the site principal investigator 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 principal investigator 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 principal investigator 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 anticancer chemotherapy or radiation therapy (cytotoxic) 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.
- 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.
- 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 each study vaccination.
*High-dose defined as per age as using inhaled high dose per reference chart https://www.nhlbi.nih.gov/health-pro/guidelines/current/asthma-guidelines/quick-reference-html#estimated-comparative-daily-doses
- Received a licensed live vaccine within 30 days prior to the first study vaccination, or plan to receive a licensed live vaccine within 30 days before or after each study vaccination.
- Received or plan to receive a licensed, inactivated, vaccine (excluding all flu vaccines) within 14 days before or after each study vaccination.
- Received or plan to receive an inactivated seasonal flu vaccine within 21 days before or after each study vaccination.
- Received immunoglobulin or other blood products (with exception of Rho D immunoglobulin) within 90 days prior to each study vaccination.
Received an experimental agent* within 30 days prior to the first study vaccination, or expect to receive an experimental agent** during the 13-month trial-reporting period.
*Including vaccine, drug, biologic, device, blood product, or medication.
**Other than from participation in this trial.
Are participating or plan to participate in another clinical trial with an interventional agent* that will be received during the 13-month trial-reporting period.
*Including licensed or unlicensed vaccine, drug, biologic, device, blood product, or medication.
Received or plan to receive an influenza A/H7 vaccine* or have a history of influenza A/H7 subtype infection.
*And assigned to a group receiving influenza A/H7 vaccine, does not apply to documented placebo recipients.
Have traveled to mainland China and had substantial* direct contact with live or freshly slaughtered poultry or pigeons within the past five years.
*Substantial 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 the 21 days after the second 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 or plan to breastfeed at any given time from the first study vaccination until 30 days after the last study vaccination.
- Plan to travel outside the US (continental US, Hawaii, and Alaska) from enrollment through 21 days after the second study vaccination.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Prevention
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Double
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Group 1
3.75 mcg of H7N9 vaccine with PBS diluent plus AS03 adjuvant on days 1 and 22, n=100 (19-64 years old) and n=60 (65 and older)
|
Oil-in-water emulsion based adjuvant system.
Monovalent 2017 H7N9 inactivated influenza vaccine
Diluent for 2017 Monovalent Inactivated Influenza A/H7N9 virus vaccine (2017 H7N9 IIV)
|
Experimental: Group 2
7.5 mcg of H7N9 vaccine plus AS03 adjuvant on days 1 and 22, n=100 (19-64 years old) and n=60 (65 and older)
|
Oil-in-water emulsion based adjuvant system.
Monovalent 2017 H7N9 inactivated influenza vaccine
|
Experimental: Group 3
15 mcg of H7N9 vaccine plus AS03 adjuvant on days 1 and 22, n=100 (19-64 years old) and n=60 (65 and older)
|
Oil-in-water emulsion based adjuvant system.
Monovalent 2017 H7N9 inactivated influenza vaccine
|
Experimental: Group 4
15 mcg of unadjuvanted H7N9 vaccine on days 1 and 22, n=50 (19-64 years old) and n=30 (65 and older)
|
Monovalent 2017 H7N9 inactivated influenza vaccine
|
Experimental: Group 5
45 mcg of unadjuvanted H7N9 vaccine on days 1 and 22, n=50 (19-64 years old) and n=30 (65 and older)
|
Monovalent 2017 H7N9 inactivated influenza vaccine
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Geometric Mean Titers (GMTs) of Serum Hemagglutination Inhibition (HAI) Antibodies
Time Frame: Day 43
|
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 from the available results at 21 days after the second dose of H7N9.
|
Day 43
|
Geometric Mean Titers (GMTs) of Serum Neutralizing (Neut) Antibodies
Time Frame: Day 43
|
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 from the available results at 21 days after the second dose of H7N9.
|
Day 43
|
Number of Participants With Clinical Safety Laboratory Adverse Events
Time Frame: Day 8
|
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.
|
Day 8
|
Number of Participants With Clinical Safety Laboratory Adverse Events
Time Frame: Day 29
|
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.
|
Day 29
|
Number of Participants Reporting Solicited Injection Site Events
Time Frame: Day 1 to Day 8
|
Injection site AEs solicited on a memory aid provided to participants included Pain, Tenderness, Itching/Pruritus, Ecchymosis/Bruising (functional grade based on interference with dailyactivities), 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.
|
Day 1 to Day 8
|
Number of Participants Reporting Solicited Injection Site Events
Time Frame: Day 22 to Day 29
|
Injection site AEs solicited on a memory aid provided to participants included Pain, Tenderness, Itching/Pruritus, Ecchymosis/Bruising (functional grade based on interference with dailyactivities), 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 second vaccination.
|
Day 22 to Day 29
|
Number of Participants Reporting Study Vaccine-related Serious Adverse Events (SAEs)
Time Frame: Day 1 to Day 387
|
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.
Events are included if deemed by the investigator to be related to the study product.
|
Day 1 to Day 387
|
Number of Participants Reporting Systemic Reactogenicity Events
Time Frame: Day 1 to Day 8
|
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.
|
Day 1 to Day 8
|
Number of Participants Reporting Systemic Reactogenicity Events
Time Frame: Day 22 to Day 29
|
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 second vaccination.
|
Day 22 to Day 29
|
Percentage of Participants Achieving Hemagglutination Inhibition (HAI) Antibodies Titer of 1:40 or Greater
Time Frame: Day 43
|
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 group from the available results at 21 days after second dose of H7N9.
|
Day 43
|
Percentage of Participants Achieving Neutralizing (Neut) Antibodies Titer of 1:40 or Greater
Time Frame: Day 43
|
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 group from the available results at 21 days after second dose of H7N9.
|
Day 43
|
Percentage of Participants Achieving Seroconversion Defined by Hemagglutination Inhibition (HAI) Antibodies
Time Frame: Day 43
|
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 or greater and minimum 4-fold rise in post-vaccination antibody titer.
21 days after second dose of H7N9 is Day 43.
|
Day 43
|
Percentage of Participants Achieving Seroconversion Defined by Neutralizing (Neut) Antibodies
Time Frame: Day 43
|
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 or greater and minimum 4-fold rise in post-vaccination antibody titer.
21 days after second dose of H7N9 is Day 43.
|
Day 43
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Geometric Mean Titers (GMTs) of Serum Hemagglutination Inhibition (HAI) Antibodies
Time Frame: Day 1
|
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 from the available results at baseline.
|
Day 1
|
Geometric Mean Titers (GMTs) of Serum Hemagglutination Inhibition (HAI) Antibodies
Time Frame: Day 8
|
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 from the available results at 7 days post first vaccination.
|
Day 8
|
Geometric Mean Titers (GMTs) of Serum Hemagglutination Inhibition (HAI) Antibodies
Time Frame: Day 22
|
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 from the available results at 21 days post first vaccination.
|
Day 22
|
Geometric Mean Titers (GMTs) of Serum Hemagglutination Inhibition (HAI) Antibodies
Time Frame: Day 29
|
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 from the available results at 7 days post second vaccination.
|
Day 29
|
Geometric Mean Titers (GMTs) of Serum Neutralizing (Neut) Antibodies
Time Frame: Day 1
|
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 from the available results at baseline.
|
Day 1
|
Geometric Mean Titers (GMTs) of Serum Neutralizing (Neut) Antibodies
Time Frame: Day 8
|
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 from the available results at 7 days post first vaccination.
|
Day 8
|
Geometric Mean Titers (GMTs) of Serum Neutralizing (Neut) Antibodies
Time Frame: Day 22
|
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 from the available results at 21 days post first vaccination.
|
Day 22
|
Geometric Mean Titers (GMTs) of Serum Neutralizing (Neut) Antibodies
Time Frame: Day 29
|
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 from the available results at 7 days post second vaccination.
|
Day 29
|
Number of Participants Reporting Serious Adverse Events (SAEs), Regardless of the Assessment of Relatedness
Time Frame: Day 1 to Day 387
|
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.
All events are included regardless of relationship to the study product.
|
Day 1 to Day 387
|
Number of Participants Reporting Unsolicited Adverse Events (AEs), Regardless of the Assessment of Seriousness or Relatedness
Time Frame: Day 1 to Day 43
|
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 each vaccination.
Adverse events were MedDRA coded and are summarized by MedDRA System Organ Class (SOC).
|
Day 1 to Day 43
|
Number of Participants Reporting Medically-attended Adverse Events (MAAEs), New-onset Chronic Medical Conditions (NOCMCs), and Potentially Immune-mediated Medical Conditions (PIMMCs)
Time Frame: Day 1 to Day 387
|
For each unsolicited AE experienced, the participants were asked if he/she had received medical attention, defined as hospitalization, an emergency room visit, or an otherwise unscheduled visit to or from medical personnel for any reason.
AEs characterized by such unscheduled medical care were designated as MAAEs.
NOCMCs are defined as any new ICD-10 diagnosis that is applied to the participant during the duration of the study, after receipt of the study agent, that is expected to continue for at least 3 months and requires continued health care intervention.
PIMMCs constitute a group of AEs that includes diseases which are clearly autoimmune in etiology and other inflammatory and/or neurologic disorders which may or may not have autoimmune etiologies.
|
Day 1 to Day 387
|
Number of Participants Reporting Study Vaccine-related Unsolicited Non-serious Adverse Events (AEs)
Time Frame: Day 1 to Day 43
|
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 each vaccination.
The site investigator determined vaccine related as "a reasonable possibility that the study product caused the AE.
Reasonable possibility means that there is evidence to suggest a causal relationship between the study product and the AE." Adverse events were MedDRA coded and are summarized by MedDRA System Organ Class (SOC).
|
Day 1 to Day 43
|
Percentage of Participants Achieving Hemagglutination Inhibition (HAI) Antibodies Titers of 1:40 or Greater
Time Frame: Day 1
|
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 group from the available results at baseline.
|
Day 1
|
Percentage of Participants Achieving Hemagglutination Inhibition (HAI) Antibodies Titers of 1:40 or Greater
Time Frame: Day 8
|
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 group from the available results at 7 days post first vaccination.
|
Day 8
|
Percentage of Participants Achieving Hemagglutination Inhibition (HAI) Antibodies Titers of 1:40 or Greater
Time Frame: Day 22
|
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 group from the available results at 21 days post first vaccination.
|
Day 22
|
Percentage of Participants Achieving Hemagglutination Inhibition (HAI) Antibodies Titers of 1:40 or Greater
Time Frame: Day 29
|
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 group from the available results at 7 days post second vaccination.
|
Day 29
|
Percentage of Participants Achieving Neutralizing (Neut) Antibodies Titers of 1:40 or Greater
Time Frame: Day 1
|
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 group from the available results at baseline.
|
Day 1
|
Percentage of Participants Achieving Neutralizing (Neut) Antibodies Titers of 1:40 or Greater
Time Frame: Day 8
|
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 group from the available results at 7 days post first vaccination.
|
Day 8
|
Percentage of Participants Achieving Neutralizing (Neut) Antibodies Titers of 1:40 or Greater
Time Frame: Day 22
|
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 group from the available results at 21 days post first vaccination.
|
Day 22
|
Percentage of Participants Achieving Neutralizing (Neut) Antibodies Titers of 1:40 or Greater
Time Frame: Day 29
|
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 group from the available results at 7 days post second vaccination.
|
Day 29
|
Percentage of Participants Achieving Seroconversion Defined by Hemagglutination Inhibition (HAI) Antibodies
Time Frame: Day 8
|
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 or greater and minimum 4-fold rise in post-vaccination antibody titer.
Day 8 is 7 days after the first dose of H7N9.
|
Day 8
|
Percentage of Participants Achieving Seroconversion Defined by Hemagglutination Inhibition (HAI) Antibodies
Time Frame: Day 22
|
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 or greater and minimum 4-fold rise in post-vaccination antibody titer.
Day 22 is 21 days after the first dose of H7N9.
|
Day 22
|
Percentage of Participants Achieving Seroconversion Defined by Hemagglutination Inhibition (HAI) Antibodies
Time Frame: Day 29
|
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 or greater and minimum 4-fold rise in post-vaccination antibody titer.
Day 29 is 7 days after the second dose of H7N9.
|
Day 29
|
Percentage of Participants Achieving Seroconversion Defined by Neutralizing (Neut) Antibodies
Time Frame: Day 8
|
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 or greater and minimum 4-fold rise in post-vaccination antibody titer.
Day 8 is 7 days after the first dose of H7N9.
|
Day 8
|
Percentage of Participants Achieving Seroconversion Defined by Neutralizing (Neut) Antibodies
Time Frame: Day 22
|
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 or greater and minimum 4-fold rise in post-vaccination antibody titer.
Day 22 is 21 days after the first dose of H7N9.
|
Day 22
|
Percentage of Participants Achieving Seroconversion Defined by Neutralizing (Neut) Antibodies
Time Frame: Day 29
|
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 or greater and minimum 4-fold rise in post-vaccination antibody titer.
Day 29 is 7 days after the second dose of H7N9.
|
Day 29
|
Collaborators and Investigators
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- 17-0075
- HHSN272201400004I
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
Clinical Trials on Influenza Immunisation
-
National Institute of Allergy and Infectious Diseases...TerminatedInfluenza | Influenza ImmunisationUnited States
-
National Institute of Allergy and Infectious Diseases...TerminatedInfluenza | Influenza ImmunisationUnited States
-
National Institute of Allergy and Infectious Diseases...Completed
-
National Institute of Allergy and Infectious Diseases...Completed
-
National Institute of Allergy and Infectious Diseases...CompletedInfluenza | Influenza ImmunisationUnited States
-
National Institute of Allergy and Infectious Diseases...CompletedAvian Influenza | ImmunisationUnited States
-
National Institute of Allergy and Infectious Diseases...Completed
-
National Institute of Allergy and Infectious Diseases...Completed
-
National Institute of Allergy and Infectious Diseases...CompletedInfluenza Immunisation | Avian InfluenzaUnited States
-
National Institute of Allergy and Infectious Diseases...CompletedInfluenza | Influenza Immunisation | Avian InfluenzaUnited States
Clinical Trials on AS03
-
PATHGlaxoSmithKline; Icahn School of Medicine at Mount Sinai; Duke University; Children... and other collaboratorsCompletedInfluenza | VaccineUnited States
-
National Institute of Allergy and Infectious Diseases...Withdrawn
-
LimmaTech Biologics AGGlaxoSmithKlineCompletedKlebsiella Pneumoniae InfectionGermany
-
SK Bioscience Co., Ltd.GlaxoSmithKline; Coalition for Epidemic Preparedness InnovationsActive, not recruitingCOVID-19 (Healthy Volunteers)Korea, Republic of
-
National Institute of Allergy and Infectious Diseases...CompletedAvian InfluenzaUnited States
-
SK Bioscience Co., Ltd.GlaxoSmithKline; International Vaccine Institute; Coalition for Epidemic Preparedness...Active, not recruiting
-
GlaxoSmithKlineCompleted
-
National Institute of Allergy and Infectious Diseases...CompletedInfluenza | Avian InfluenzaUnited States
-
Erasme University HospitalCompletedInfluenza | Rejection | Decreased Immunologic Activity [PE]Belgium
-
Sanofi Pasteur, a Sanofi CompanyGlaxoSmithKlineActive, not recruitingCOVID-19Honduras, United States, Australia, France, Kenya, Mexico, New Zealand, Panama, Spain, United Kingdom