CClinicalTrials.gg
CompletedNCT01859143Updated Nov 10, 2014Results posted

Study to Evaluate the Safety of 3 New 6:2 Influenza Virus Reassortants in Adults

A Phase 4 interventional study of Trivalent Influenza Vaccine and Placebo in Influenza and Healthy, sponsored by MedImmune LLC. Completed at 3 sites in United States. Open to participants aged 18 Years to 49 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2014-11-10.

Sponsored by MedImmune LLC · Phase 4, Interventional, and Prevention

Phase
Phase 4
Study type
Interventional
Enrollment
300
Allocation
Randomized
Ages
18 Years to 49 Years
Sex
All
01

Study summary

This prospective annual release study is designed to evaluate the safety on new influenza virus vaccine strains to be included in FluMist Quadrivalent for the 2013-2014 influenza season.

Read the detailed description

This prospective, randomized, double-blind, placebo-controlled release study will enroll approximately 300 healthy adults 18 to 49 years of age. Eligible subjects will be randomly assigned in a 4:1 fashion to receive a single dose of trivalent vaccine or placebo by intranasal spray. Randomization will be stratified by site. This study will be conducted at 3 sites in the United States of America. Each subject will receive 1 dose of investigational product on Day 1. The duration of study participation for each subject is the time from study vaccination through 180 days after study vaccination.

02

Conditions studied

  • Influenza
  • Healthy

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Keywords

  • Trivalent
  • Influenza
  • FluMist Quadrivalent
  • Vaccine
  • Prevention
  • Healthy
03

In context

Influenza, Human

2,214 studies on the registry are indexed under Influenza, Human; 163 are open to participants now.

This study's enrollment of 300 is above the median of 238 across 1,853 interventional studies indexed under Influenza, Human.

Browse Influenza, Human studies →

Lead sponsor

MedImmune LLC is the lead sponsor of 265 studies on the registry; none are open to participants now.

Of its 50 completed or terminated interventional studies of FDA-regulated products, 28 (56%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 49 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Age 18 through 49 years
  • Written informed consent
  • Subject available by telephone
  • Ability to understand and comply with the requirements of the protocol, as judged by the Investigator

Exclusion criteria

Exclusion Criteria:

  • Concurrent enrollment in another clinical study up to 180 days after receipt of investigational product (Day 181)
  • History of hypersensitivity to any component of the vaccine, including egg or egg protein or serious, life threatening, or severe reactions to previous influenza vaccinations
  • Any condition for which the inactivated influenza vaccine is indicated, including chronic disorders of the pulmonary or cardiovascular systems (example [eg], asthma), chronic metabolic diseases (eg, diabetes mellitus), renal dysfunction, or hemoglobinopathies that required regular medical follow-up or hospitalization during the preceding year
  • Acute febrile (greater than [>] 100.0 degrees Fahrenheit [F] oral or equivalent) and/or clinically significant respiratory illness (example, cough or sore throat) within 14 days prior to randomization
  • Any known immunosuppressive condition or immune deficiency disease, including human immunodeficiency virus infection, or ongoing immunosuppressive therapy
  • History of Guillain-Barré syndrome
05

Study design

Phase
Phase 4
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
300 participants (actual)

Study arms

  • Experimental
    Trivalent Influenza Vaccine

    A single dose of 10\^(7.0 +/- 0.5) fluorescent focus units (FFU) of trivalent influenza vaccine will be administered as intranasal spray on Day 1.

    Biological: Trivalent Influenza Vaccine

  • Placebo comparator
    Placebo

    A single dose of placebo matched to trivalent influenza vaccine will be administered as intranasal spray on Day 1.

    Other: Placebo

Interventions

  • BiologicalTrivalent Influenza Vaccine

    A single dose of 10\^(7.0 ± 0.5) FFU of trivalent influenza vaccine will be administered as intranasal spray on Day 1.

  • OtherPlacebo

    A single dose of placebo matched to trivalent influenza vaccine will be administered as intranasal spray on Day 1.

06

What researchers measure

Primary outcomes

  1. Percentage of Participants With Fever Greater Than or Equal to (>=) 101 Degrees Fahrenheit (F)

    Percentage of participants with fever defined as oral temperature \>=101 degrees F were reported.

    Time frame: Within 7 days after vaccination

Secondary outcomes

  1. Percentage of Participants With Solicited Symptoms

    Solicited symptoms were predefined symptoms or events to be specifically inquired about and assessed daily after vaccine administration up to 14 days after vaccination. The solicited symptoms included fever greater than (\>) 100.0 degrees F (37.8 degrees Celsius), runny nose, sore throat, cough, vomiting, muscle aches, chills, decreased activity and headache. Results are reported for all solicited symptoms except fever \>=101 degrees F (reported as primary outcome) within 7 days after vaccination and all solicited symptoms within 14 days after vaccination.

    Time frame: Within 7 and 14 days after vaccination

  2. Number of Participants With Treatment-Emergent Adverse Events (TEAEs)

    An adverse event (AE) was any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. Treatment-emergent AEs were events between administration of study drug and up to 14 days after vaccination that were absent before treatment or that worsened relative to pre-treatment state. Results are given for AEs reported within 7 days and 14 days after vaccination.

    Time frame: Within 7 and 14 days after vaccination

  3. Number of Participants With Treatment-Emergent Serious Adverse Events (TESAEs) and New Onset Chronic Diseases (NOCDs)

    An AE was any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. An SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. Treatment-emergent SAEs were serious events between administration of study drug and up to 180 days after the dose that were absent before treatment or that worsen relative to pretreatment state. An NOCD was a newly diagnosed medical condition that was of a chronic, ongoing nature and was assessed by the investigator as medically significant. Results are given for TESAEs and NOCDs reported within 28 days and 180 days after vaccination.

    Time frame: Within 28 and 180 days after vaccination

  4. Percentage of Participants Who Required Antipyretic and/or Analgesic Medication

    Time frame: Within 7 and 14 days after vaccination

07

Results

Posted Nov 10, 2014

Participant flow

Participant flow — Overall Study
MilestoneTrivalent Influenza VaccinePlacebo
Started24060
Completed23860
Not completed20
Withdrew: Lost to follow-up20

Outcome measures

PrimaryPercentage of Participants With Fever Greater Than or Equal to (>=) 101 Degrees Fahrenheit (F)

Percentage of participants with fever defined as oral temperature \>=101 degrees F were reported.

Time frame:
Within 7 days after vaccination
Reported as:
Number · percentage of participants
Percentage of Participants With Fever Greater Than or Equal to (>=) 101 Degrees Fahrenheit (F)
percentage of participantsTrivalent Influenza VaccinePlacebo
Percentage of Participants With Fever Greater Than or Equal to (>=) 101 Degrees Fahrenheit (F)0.40.0
Statistical analysis
  • Trivalent Influenza Vaccine vs Placebo · Percent difference: 0.4 · 95% CI -5.3 to 2.6A two-sided 95% CI was constructed using the exact method based on the score statistic proposed by Chan and Zhang.
SecondaryPercentage of Participants With Solicited Symptoms

Solicited symptoms were predefined symptoms or events to be specifically inquired about and assessed daily after vaccine administration up to 14 days after vaccination. The solicited symptoms included fever greater than (\>) 100.0 degrees F (37.8 degrees Celsius), runny nose, sore throat, cough, vomiting, muscle aches, chills, decreased activity and headache. Results are reported for all solicited symptoms except fever \>=101 degrees F (reported as primary outcome) within 7 days after vaccination and all solicited symptoms within 14 days after vaccination.

Time frame:
Within 7 and 14 days after vaccination
Reported as:
Number · percentage of participants
Percentage of Participants With Solicited Symptoms
percentage of participantsTrivalent Influenza VaccinePlacebo
Any symptom within 7 days37.325.4
Fever: greater than 100 degrees F within 7 days0.80.0
Fever: greater than 102 degrees F within 7 days0.00.0
Fever: greater than 103 degrees F within 7 days0.00.0
Runny nose within 7 days20.711.9
Sore throat within 7 days9.53.4
Cough within 7 days4.65.1
Vomiting within 7 days0.00.0
Muscle aches within 7 days3.33.4
Chills within 7 days1.70.0
Decreased activity (tiredness) within 7 days10.06.8
Headache within 7 days15.411.9
Any symptom within 14 days39.427.1
Fever: greater than 100 degrees F within 14 days1.20.0
Fever: >= 101 degrees F within 14 days0.80.0
Fever: greater than 102 degrees F within 14 days0.00.0
Fever: greater than 103 degrees F within 14 days0.00.0
Runny nose within 14 days21.611.9
Sore throat within 14 days11.26.8
Cough within 14 days5.45.1
Vomiting within 14 days0.40.0
Muscle aches within 14 days3.73.4
Chills within 14 days2.50.0
Decreased activity (tiredness) within 14 days11.26.8
Headache within 14 days16.613.6
Statistical analysis
  • Trivalent Influenza Vaccine vs Placebo · Percent difference: 11.9 · 95% CI -1.9 to 23.9Any symptom within 7 days of vaccination: Difference in percentage of participants and 95% CI were constructed based on Chan and Zhang's method.
  • Trivalent Influenza Vaccine vs Placebo · Percent difference: 0.8 · 95% CI -4.9 to 3.3Fever \>100 degrees F within 7 days of vaccination: Difference in percentage of participants and 95% CI were constructed based on Chan and Zhang's method.
  • Trivalent Influenza Vaccine vs Placebo · Percent difference: 0.0 · 95% CI -6.1 to 1.8Fever \>102 degrees F within 7 days of vaccination: Difference in percentage of participants and 95% CI were constructed based on Chan and Zhang's method.
  • Trivalent Influenza Vaccine vs Placebo · Percent difference: 0.0 · 95% CI -6.1 to 1.8Fever \>103 degrees F within 7 days of vaccination: Difference in percentage of participants and 95% CI were constructed based on Chan and Zhang's method.
  • Trivalent Influenza Vaccine vs Placebo · Percent difference: 8.9 · 95% CI -2.6 to 17.7Runny nose within 7 days of vaccination: Difference in percentage of participants and 95% CI were constructed based on Chan and Zhang's method.
  • Trivalent Influenza Vaccine vs Placebo · Percent difference: 6.2 · 95% CI -2.2 to 11.6Sore throat within 7 days of vaccination: Difference in percentage of participants and 95% CI were constructed based on Chan and Zhang's method.
  • Trivalent Influenza Vaccine vs Placebo · Percent difference: -0.5 · 95% CI -9.3 to 4.7Cough within 7 days of vaccination: Difference in percentage of participants and 95% CI were constructed based on Chan and Zhang's method.
  • Trivalent Influenza Vaccine vs Placebo · Percent difference: 0.0 · 95% CI -6.1 to 1.8Vomiting within 7 days of vaccination: Difference in percentage of participants and 95% CI were constructed based on Chan and Zhang's method.
  • Trivalent Influenza Vaccine vs Placebo · Percent difference: -0.1 · 95% CI -8.0 to 4.3Muscle aches within 7 days of vaccination: Difference in percentage of participants and 95% CI were constructed based on Chan and Zhang's method.
  • Trivalent Influenza Vaccine vs Placebo · Percent difference: 1.7 · 95% CI -4.1 to 4.4Chills within 7 days of vaccination: Difference in percentage of participants and 95% CI were constructed based on Chan and Zhang's method.
  • Trivalent Influenza Vaccine vs Placebo · Percent difference: 3.2 · 95% CI -6.5 to 9.8Decreased activity (tiredness) within 7 days of vaccination: Difference in percentage of participants and 95% CI were constructed based on Chan and Zhang's method.
  • Trivalent Influenza Vaccine vs Placebo · Percent difference: 3.5 · 95% CI -7.8 to 11.9Headache within 7 days of vaccination: Difference in percentage of participants and 95% CI were constructed based on Chan and Zhang's method.
  • Trivalent Influenza Vaccine vs Placebo · Percent difference: 12.3 · 95% CI -1.6 to 24.4Any symptom within 14 days of vaccination: Difference in percentage of participants and 95% CI were constructed based on Chan and Zhang's method.
  • Trivalent Influenza Vaccine vs Placebo · Percent difference: 1.2 · 95% CI -4.5 to 3.9Fever \>100 degrees F within 14 days of vaccination: Difference in percentage of participants and 95% CI were constructed based on Chan and Zhang's method.
  • Trivalent Influenza Vaccine vs Placebo · Percent difference: 0.8 · 95% CI -4.9 to 3.3Fever \>=101 degrees F within 14 days of vaccination: Difference in percentage of participants and 95% CI were constructed based on Chan and Zhang's method.
  • Trivalent Influenza Vaccine vs Placebo · Percent difference: 0.0 · 95% CI -6.1 to 1.8Fever \>102 degrees F within 14 days of vaccination: Difference in percentage of participants and 95% CI were constructed based on Chan and Zhang's method.
  • Trivalent Influenza Vaccine vs Placebo · Percent difference: 0.0 · 95% CI -6.1 to 1.8Fever \>103 degrees F within 14 days of vaccination: Difference in percentage of participants and 95% CI were constructed based on Chan and Zhang's method.
  • Trivalent Influenza Vaccine vs Placebo · Percent difference: 9.7 · 95% CI -1.8 to 18.6Runny nose within 14 days of vaccination: Difference in percentage of participants and 95% CI were constructed based on Chan and Zhang's method.
  • Trivalent Influenza Vaccine vs Placebo · Percent difference: 4.4 · 95% CI -5.3 to 11.2Sore throat within 14 days of vaccination: Difference in percentage of participants and 95% CI were constructed based on Chan and Zhang's method.
  • Trivalent Influenza Vaccine · Percent difference: 0.3 · 95% CI -8.6 to 5.7Cough within 14 days of vaccination: Difference in percentage of participants and 95% CI were constructed based on Chan and Zhang's method.
  • Trivalent Influenza Vaccine vs Placebo · Percent difference: 0.4 · 95% CI -5.3 to 2.6Vomiting within 14 days of vaccination: Difference in percentage of participants and 95% CI were constructed based on Chan and Zhang's method.
  • Trivalent Influenza Vaccine vs Placebo · Percent difference: 0.3 · 95% CI -7.8 to 4.8Muscle aches within 14 days of vaccination: Difference in percentage of participants and 95% CI were constructed based on Chan and Zhang's method.
  • Trivalent Influenza Vaccine vs Placebo · Percent difference: 2.5 · 95% CI -3.3 to 5.5Chills within 14 days of vaccination: Difference in percentage of participants and 95% CI were constructed based on Chan and Zhang's method.
  • Trivalent Influenza Vaccine vs Placebo · Percent difference: 4.4 · 95% CI -5.3 to 11.2Decreased activity (tiredness) within 14 days of vaccination: Difference in percentage of participants and 95% CI were constructed based on Chan and Zhang's method.
  • Trivalent Influenza Vaccine vs Placebo · Percent difference: 3.0 · 95% CI -8.7 to 12.0Headache within 14 days of vaccination: Difference in percentage of participants and 95% CI were constructed based on Chan and Zhang's method.
SecondaryNumber of Participants With Treatment-Emergent Adverse Events (TEAEs)

An adverse event (AE) was any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. Treatment-emergent AEs were events between administration of study drug and up to 14 days after vaccination that were absent before treatment or that worsened relative to pre-treatment state. Results are given for AEs reported within 7 days and 14 days after vaccination.

Time frame:
Within 7 and 14 days after vaccination
Reported as:
Number · participants
Number of Participants With Treatment-Emergent Adverse Events (TEAEs)
participantsTrivalent Influenza VaccinePlacebo
Within 7 days264
Within 14 days285
SecondaryNumber of Participants With Treatment-Emergent Serious Adverse Events (TESAEs) and New Onset Chronic Diseases (NOCDs)

An AE was any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. An SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. Treatment-emergent SAEs were serious events between administration of study drug and up to 180 days after the dose that were absent before treatment or that worsen relative to pretreatment state. An NOCD was a newly diagnosed medical condition that was of a chronic, ongoing nature and was assessed by the investigator as medically significant. Results are given for TESAEs and NOCDs reported within 28 days and 180 days after vaccination.

Time frame:
Within 28 and 180 days after vaccination
Reported as:
Number · participants
Number of Participants With Treatment-Emergent Serious Adverse Events (TESAEs) and New Onset Chronic Diseases (NOCDs)
participantsTrivalent Influenza VaccinePlacebo
TESAEs within 28 days10
TESAEs within 180 days12
NOCDs within 28 days00
NOCDs within 180 days00
SecondaryPercentage of Participants Who Required Antipyretic and/or Analgesic Medication
Time frame:
Within 7 and 14 days after vaccination
Reported as:
Number · percentage of participants
Percentage of Participants Who Required Antipyretic and/or Analgesic Medication
percentage of participantsTrivalent Influenza VaccinePlacebo
Anti-pyretic or analgesic within 7 days9.15.1
Anti-pyretic and analgesic within 7 days8.75.1
Anti-pyretic or analgesic within 14 days9.16.8
Anti-pyretic and analgesic within 14 days8.76.8

Adverse events

Collected over Serious Adverse events (SAEs): up to 180 days after vaccination; other adverse events (AEs): up to 14 days after vaccination. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
TRIVALENT VACCINE—1/241 (0.4%)28/241 (11.6%)
PLACEBO—2/59 (3.4%)5/59 (8.5%)
Most frequent serious events
Most frequent serious events
EventTRIVALENT VACCINEPLACEBO
Gastrooesophageal reflux diseaseGastrointestinal disorders0/2411/59
MenorrhagiaReproductive system and breast disorders0/2411/59
Non-cardiac chest painGeneral disorders1/2410/59
Most frequent other events
Showing 10 of 13
Most frequent other events
EventTRIVALENT VACCINEPLACEBO
Nasal congestionRespiratory, thoracic and mediastinal disorders16/2413/59
LymphadenopathyBlood and lymphatic system disorders0/2411/59
DiarrhoeaGastrointestinal disorders1/2411/59
NauseaGastrointestinal disorders3/2411/59
Nasal discharge discolourationRespiratory, thoracic and mediastinal disorders0/2411/59
Night sweatsSkin and subcutaneous tissue disorders1/2411/59
Sinus congestionRespiratory, thoracic and mediastinal disorders4/2410/59
SneezingRespiratory, thoracic and mediastinal disorders3/2410/59
Upper respiratory tract infectionInfections and infestations2/2410/59
DyspepsiaGastrointestinal disorders1/2410/59

Baseline characteristics

Analysis population included all randomized participants.

Age, Continuous
Age, Continuous(years)Trivalent Influenza VaccinePlaceboTotal
Mean33.1 ± 9.433.6 ± 9.033.2 ± 9.3
Sex: Female, Male
Sex: Female, Male(Participants)Trivalent Influenza VaccinePlaceboTotal
Female13734171
Male10326129
08

Study locations

3 sites
  • Research Site
    Miami, Florida, United States
  • Research Site
    Stockbridge, Georgia, United States
  • Research Site
    Portland, Oregon, United States
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 10, 2014, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT01859143
Lead sponsor
MedImmune LLC
Collaborators
AstraZeneca
Responsible party
Sponsor
First posted
May 21, 2013
Start date
May 2013
Primary completion
Dec 2013
Completion
Dec 2013
Results posted
Nov 10, 2014
Last update
Nov 10, 2014

Study contacts

Raburn Mallory, MD
study director · MedImmune LLC

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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