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Immune Response Following Seasonal Influenza Vaccination

Extent and Durability of Immune Response Following Seasonal Influenza Vaccination in Healthy Volunteers

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03163342
Enrollment
20
Registered
2017-05-23
Start date
2017-05-08
Completion date
2018-06-15
Last updated
2019-04-26

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Influenza

Keywords

Seasonal

Brief summary

This is an open-label, single administration dose study in adult healthy male and female subjects. After qualifying for the study, subjects will receive a single intramuscular injection of the FDA approved 2016-2017 quadrivalent influenza vaccine.

Detailed description

Subjects will be screened within 28 days prior to enrollment into the study. After qualifying for the study subjects will visit the clinical unit on Day l and will have pre-dose blood samples taken for humoral (serum) and cellular(peripheral blood mononuclear cells PBMCs) immunity testing and nasopharyngeal swabs for assessment of mucosa! immunity, and will then be given the vaccine. Over the next 6 months, I 0-mL blood samples will be collected on Days 4, 8, 15, 29, 91 and 181 for HAI testing. Peripheral blood mononuclear cells will be collected on Day 8 to assess cellular responses. A nasopharyngeal swab will also be done on Day 29. Screening assessments will include clinical laboratory tests (hematology, chemistry, urinalysis (UA), drug and alcohol testing), vital signs, 12-lead electrocardiogram and physical examination. Adverse events (AEs) will be monitored throughout the study.

Interventions

20 healthy subjects will be enrolled and receive a single dose of licensed seasonal influenza vaccine

Sponsors

Optimal Health Research
CollaboratorOTHER
Altimmune, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
DIAGNOSTIC
Masking
NONE

Intervention model description

Open label

Eligibility

Sex/Gender
ALL
Age
18 Years to 50 Years
Healthy volunteers
Yes

Inclusion criteria

1. Men and women 18 to 50 years of age, inclusive 2. Good general health status, as determined by the Investigator 3. Adequate venous access for repeated phlebotomies 4. Screening laboratory results within institutional normal range or Grade 1 elevation if the Investigator documents clinical insignificance. Bilirubin may be Grade 2 if associated with no1mal alanine aminotransferase (ALT) and aspartate aminotransferase (AST) and the Investigator considers the result not to be clinically significant (e.g. vigorous exercise or Gilbert's syndrome) 5. Negative drug and alcohol screen at Screening and pre-dose on Day I 6. For women of child bearing potential, negative pregnancy test 7. Willingness to practice a highly effective method of contraception that may include, but is not limited to, abstinence, sex only with persons of the same sex,monogamous relationship with a postmenopausal partner, monogamous relationship with vasectomized partner, vasectomy, surgical sterilization (hysterectomy, or bilateral tubal ligation, salpingectomy, or oophorectomy), licensed hormonal methods, intrauterine device (IUD), or consistent use of a barrier method (e.g., condom, diaphragm) with spermicide for 28 days after the Fluzone Intramuscular Quadrivalent vaccine dose.

Exclusion criteria

1. Pregnant, possibly pregnant, or lactating women 2. Body mass index\> 35.0 kg/m2 3. Positive results for HIV, hepatitis B vims, or hepatitis C virus at Screening 4. Asthma or other chronic lung disease that is greater than mild in severity. Specifically excluded are participants with any of the following events in the past year: * Daily symptoms * Daily use of short acting beta 2 agonists * Use of inhaled steroids or theophylline * Use of pulse systemic steroids * Emergency care or hospitalization related to asthma or other chronic lung disease * Systemic steroids for asthma exacerbation 5. History of diabetes mellitus (gestational diabetes is allowed if treatment was not required postpartum and serum glucose is currently in the normal range) 6. History of coronary artery disease, arrhythmia, or congestive heart failure 7. Clinically significant ECG abnormality 8. Poorly controlled hypertension (systolic blood pressure \> 150 mmHg or diastolic blood pressure \> 95 mmHg) at Screening or pre-dose on Day I 9. History of anaphylaxis or angioedema 10. Known allergy to any of the ingredients in the vaccine formulation including egg allergy 11. History of chronic rhinitis, nasal septal defect,cleft palate, nasal polyps, or other nasal abnormality that might affect vaccine administration 12. Previous nasal surgery or nasal cauterization 13. Any symptoms of upper respiratory infection or temperature\> 38°C within 3 days before Day I 14. Significant nasal congestion or rhinorrhea as assessed by the investigator. 15. Known or suspected malignancy, excluding non-melanoma skin cancers and other early stage surgically excised malignancies that the Investigator considers to be exceedingly unlikely to recur 16. Immunocompromised individuals, including those who have used corticosteroids (including intranasal steroids), alkylating drugs, antimetabolites, radiation, immune-modulating biologics, or other immunomodulating therapies within 90 days before Day 1 or those who plan use during the study period 17. Use of statin medication within 30 days before Day I (including atorvastatin, fluvastatin,lovastatin, pravastatin, rosuvastatin, simvastatin, pitavastatin) 18. Receipt of intranasal medications (including over-the-counter medications) within 30 days before Day 1 19. Receipt of any IP within 30 days before Day 1 20. Receipt of any vaccine within 30 days before Day I 21. Receipt of intranasal vaccine within 90 days before Day I 22. Receipt of any influenza vaccine within 6 months before Day I 23. Any change in medication for a chronic medical condition within 30 days before Day I 24. Past regular use or current use of intranasal illicit drugs or any regular use of illicit drugs by any other route. 25. Use of tobacco products or electronic cigarettes within 30 days before Day l. Any other smoking products including marijuana will be excluded. 26. Any medical, psychiatric, or social condition or any occupational or other responsibility that in the judgment of the Investigator would interfere with or serve as a contraindication to protocol adherence, assessment of safety (including immunogenicity), or a subject's ability to give informed consent

Design outcomes

Primary

MeasureTime frameDescription
HAI Antibody Immune Response to Matched Influenza Strain H1N1 A/California/04/2009 StrainDay 29 after vaccineTo evaluate antibody response against matched influenza strain H1N1 A/California/04/2009 strain as measured by hemagglutination inhibition (HAI) following administration of a seasonal influenza vaccine.

Secondary

MeasureTime frameDescription
Antibody Response to Divergent Influenza StrainsDay 29 after vaccinel) antibody responses to divergent influenza strains as measured by hemagglutination inhibition (HAI) following administration of a seasonal influenza vaccine
Cellular Immune ResponseDay 8 after vaccineTo evaluate cellular immune responses to influenza as measured by PBMC ELISpot following administration of seasonal influenza vaccine
Mucosal Influenza Antibody ResponseDay 29 after vaccineTo evaluate mucosal influenza antibody responses as measured by IgA ELISA following administration of seasonal influenza vaccine

Countries

United States

Participant flow

Participants by arm

ArmCount
Open Label
Licensed seasonal influenza vaccine, intramuscular Licensed seasonal influenza vaccine: 20 healthy subjects will be enrolled and receive a single dose of licensed seasonal influenza vaccine
20
Total20

Baseline characteristics

CharacteristicOpen Label
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
0 Participants
Age, Categorical
Between 18 and 65 years
20 Participants
Age, Continuous34.2 years
Ethnicity (NIH/OMB)
Hispanic or Latino
2 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
18 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
9 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
2 Participants
Race (NIH/OMB)
White
9 Participants
Sex: Female, Male
Female
10 Participants
Sex: Female, Male
Male
10 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 20
other
Total, other adverse events
0 / 20
serious
Total, serious adverse events
0 / 20

Outcome results

Primary

HAI Antibody Immune Response to Matched Influenza Strain H1N1 A/California/04/2009 Strain

To evaluate antibody response against matched influenza strain H1N1 A/California/04/2009 strain as measured by hemagglutination inhibition (HAI) following administration of a seasonal influenza vaccine.

Time frame: Day 29 after vaccine

ArmMeasureValue (GEOMETRIC_MEAN)
FluZoneHAI Antibody Immune Response to Matched Influenza Strain H1N1 A/California/04/2009 Strain293.4 Geometric Mean Titer
Secondary

Antibody Response to Divergent Influenza Strains

l) antibody responses to divergent influenza strains as measured by hemagglutination inhibition (HAI) following administration of a seasonal influenza vaccine

Time frame: Day 29 after vaccine

ArmMeasureGroupValue (GEOMETRIC_MEAN)
FluZoneAntibody Response to Divergent Influenza StrainsA/Brisbane/59/2007 (H1 strain)12.3 GMT
FluZoneAntibody Response to Divergent Influenza StrainsA/New Jersey/76 (H1 strain)37.3 GMT
FluZoneAntibody Response to Divergent Influenza StrainsA/Saint-Petersburg/61/2015 (H1 strain)40.7 GMT
FluZoneAntibody Response to Divergent Influenza StrainsA/Vietnam/1203/2004XPR8 (H5 strain)9.3 GMT
Secondary

Cellular Immune Response

To evaluate cellular immune responses to influenza as measured by PBMC ELISpot following administration of seasonal influenza vaccine

Time frame: Day 8 after vaccine

ArmMeasureValue (GEOMETRIC_MEAN)
FluZoneCellular Immune Response37.1 GMT
Secondary

Mucosal Influenza Antibody Response

To evaluate mucosal influenza antibody responses as measured by IgA ELISA following administration of seasonal influenza vaccine

Time frame: Day 29 after vaccine

ArmMeasureValue (GEOMETRIC_MEAN)
FluZoneMucosal Influenza Antibody Response1.8 GMT

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026