Evaluating the Safety and Immunogenicity of a Live Attenuated Virus Vaccine to Prevent Influenza H3N2v Disease

NCT ID: NCT02883426

Last Updated: 2018-05-03

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

TERMINATED

Clinical Phase

PHASE1

Total Enrollment

1 participants

Study Classification

INTERVENTIONAL

Study Start Date

2016-09-30

Brief Summary

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This study will evaluate the safety and immunogenicity of the H3N2v MN 2010/AA ca live attenuated influenza vaccine (H3N2v LAIV) in healthy children and adults, 6 to 26 years old.

Detailed Description

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The potential for widespread human disease due to the H3N2v influenza viruses is considerable. Infection with these viruses would most likely impact young children. This study will evaluate the safety and immunogenicity of the H3N2v MN 2010/AA ca live attenuated influenza vaccine (H3N2v LAIV) in healthy children and adults, 6 to 26 years old.

The study will enroll participants sequentially in four groups: Group 1 will include H3N2v seronegative adults ages 18-26 years; Group 2 will include H3N2v seropositive adolescents ages 13-17 years; Group 3 will include H3N2v seronegative adolescents ages 13-17 years; and Group 4 will include children ages 6 to 12 years, who will not be screened for H3N2v serostatus.

At study entry (Day 0), participants in Group 1 will receive one dose of H3N2v LAIV. Participants in Groups 2, 3, and 4 will be randomly assigned to receive two doses of either H3N2v LAIV or placebo, receiving the first dose on Day 0 and the second dose on Day 28. On Day 84, all participants will receive one dose of H3N2v IIV (an inactivated booster vaccine).

Participants will attend several additional study visits through Day 180. These visits may include a physical examination; respiratory examination; and collection of blood, urine, or nasal fluids.

Conditions

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Influenza

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

NONE

Study Groups

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Group 1: H3N2v Seronegative Adults: H3N2v LAIV

Participants will receive one dose of H3N2v LAIV on Day 0 (study entry). They will then receive one dose of H3N2v IIV on Day 84.

Group Type EXPERIMENTAL

H3N2v MN 2010/AA ca live attenuated influenza vaccine (LAIV)

Intervention Type BIOLOGICAL

Approximately 10\^7.0 Fluorescent Focus Units (FFU) per 0.2 mL dose; administered intranasally

H3N2v inactivated subvirion influenza vaccine

Intervention Type BIOLOGICAL

15 μg; administered intramuscularly

Group 2: H3N2v Seropositive Adolescents: H3N2v LAIV

Participants will receive two doses of H3N2v LAIV, the first dose on Day 0 (study entry) and the second dose on Day 28. They will then receive one dose of H3N2v IIV on Day 84.

Group Type EXPERIMENTAL

H3N2v MN 2010/AA ca live attenuated influenza vaccine (LAIV)

Intervention Type BIOLOGICAL

Approximately 10\^7.0 Fluorescent Focus Units (FFU) per 0.2 mL dose; administered intranasally

H3N2v inactivated subvirion influenza vaccine

Intervention Type BIOLOGICAL

15 μg; administered intramuscularly

Group 2: H3N2v Seropositive Adolescents: Placebo

Participants will receive two doses of placebo, the first dose on Day 0 (study entry) and the second dose on Day 28. They will then receive one dose of H3N2v IIV on Day 84.

Group Type PLACEBO_COMPARATOR

H3N2v inactivated subvirion influenza vaccine

Intervention Type BIOLOGICAL

15 μg; administered intramuscularly

Placebo

Intervention Type BIOLOGICAL

Administered by nasal spray

Group 3: H3N2v Seronegative Adolescents: H3N2v LAIV

Participants will receive two doses of H3N2v LAIV, the first dose on Day 0 (study entry) and the second dose on Day 28. They will then receive one dose of H3N2v IIV on Day 84.

Group Type EXPERIMENTAL

H3N2v MN 2010/AA ca live attenuated influenza vaccine (LAIV)

Intervention Type BIOLOGICAL

Approximately 10\^7.0 Fluorescent Focus Units (FFU) per 0.2 mL dose; administered intranasally

H3N2v inactivated subvirion influenza vaccine

Intervention Type BIOLOGICAL

15 μg; administered intramuscularly

Group 3: H3N2v Seronegative Adolescents: Placebo

Participants will receive two doses of placebo, the first dose on Day 0 (study entry) and the second dose on Day 28. They will then receive one dose of H3N2v IIV on Day 84.

Group Type PLACEBO_COMPARATOR

H3N2v inactivated subvirion influenza vaccine

Intervention Type BIOLOGICAL

15 μg; administered intramuscularly

Placebo

Intervention Type BIOLOGICAL

Administered by nasal spray

Group 4: Children: H3N2v LAIV

Participants will receive two doses of H3N2v LAIV, the first dose on Day 0 (study entry) and the second dose on Day 28. They will then receive one dose of H3N2v IIV on Day 84.

Group Type EXPERIMENTAL

H3N2v MN 2010/AA ca live attenuated influenza vaccine (LAIV)

Intervention Type BIOLOGICAL

Approximately 10\^7.0 Fluorescent Focus Units (FFU) per 0.2 mL dose; administered intranasally

H3N2v inactivated subvirion influenza vaccine

Intervention Type BIOLOGICAL

15 μg; administered intramuscularly

Group 4: Children: Placebo

Participants will receive two doses of placebo, the first dose on Day 0 (study entry) and the second dose on Day 28. They will then receive one dose of H3N2v IIV on Day 84.

Group Type PLACEBO_COMPARATOR

H3N2v inactivated subvirion influenza vaccine

Intervention Type BIOLOGICAL

15 μg; administered intramuscularly

Placebo

Intervention Type BIOLOGICAL

Administered by nasal spray

Interventions

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H3N2v MN 2010/AA ca live attenuated influenza vaccine (LAIV)

Approximately 10\^7.0 Fluorescent Focus Units (FFU) per 0.2 mL dose; administered intranasally

Intervention Type BIOLOGICAL

H3N2v inactivated subvirion influenza vaccine

15 μg; administered intramuscularly

Intervention Type BIOLOGICAL

Placebo

Administered by nasal spray

Intervention Type BIOLOGICAL

Other Intervention Names

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H3N2v LAIV H3N2v IIV

Eligibility Criteria

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Inclusion Criteria

* Males and non-pregnant females between 6 and 26 years of age inclusive.
* For children, presence of an adult caregiver who is in good health and able to understand and carry out the requirements
* General good health, without significant medical illness, physical examination findings, or significant laboratory abnormalities as determined by the investigator.
* Agree to storage of blood specimens for future research.
* Available for the duration of the trial.
* Willingness to participate in the study as evidenced by signing the informed consent document. Verbal assent will be obtained from minors 6 to 12 years of age and signed assent will be obtained from minors 13 and older.
* Female subjects of childbearing potential must agree to use effective birth control methods for the duration of the study (e.g., pharmacologic contraceptives including oral, parenteral, and transcutaneous delivery; condoms with spermicide; diaphragm with spermicide; intrauterine device; abstinence from heterosexual intercourse, surgical sterilization).

Exclusion Criteria

* Anticipated direct routine \[e.g. weekly or more frequent\] contact with individuals younger than the designated age groups being studied as a result of household contact, occupation, or participation in day care with such individuals.
* Pregnancy as determined by a positive urine or serum human choriogonadotropin (β-HCG) test.
* Currently breast-feeding.
* Evidence of clinically significant neurologic, cardiac, pulmonary, hepatic, rheumatologic, autoimmune, or renal disease by history or physical examination.
* Behavioral or cognitive impairment or psychiatric disease that, in the opinion of the investigator, affects the ability of the subject to understand and cooperate with the study protocol.
* Other condition that, in the opinion of the investigator, would jeopardize the safety or rights of a subject participating in the trial or would render the subject unable to comply with the protocol.
* History of anaphylaxis.
* Allergy to oseltamivir as determined by subject report.
* Current diagnosis of asthma or reactive airway disease (within the past 2 years).
* Use of aspirin or salicylate-containing medications within 28 days prior to randomization or expected receipt through 28 days after final vaccination.
* History of Guillain-Barré Syndrome.
* Known history of HIV, hepatitis C, or active hepatitis B infection.
* Known immunodeficiency syndrome.
* Use of corticosteroids (excluding topical preparations) or immunosuppressive drugs within 30 days prior to vaccination.
* Receipt of a live vaccine within 4 weeks or a killed vaccine within 2 weeks prior to study vaccination.
* Receipt of blood or blood-derived products (including immunoglobulin) within 6 months prior to study vaccination.
* Travel to the Southern Hemisphere within 14 days prior to study vaccination.
* Travel on a cruise ship within 14 days prior to study vaccination.
* Receipt of another investigational vaccine or drug within 30 days prior to study vaccination.
* Allergy to eggs or egg products, gentamicin, or gelatin.
* Chronic use of intranasal medications.
Minimum Eligible Age

6 Years

Maximum Eligible Age

26 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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National Institute of Allergy and Infectious Diseases (NIAID)

NIH

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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John Treanor, M.D.

Role: PRINCIPAL_INVESTIGATOR

University of Rochester

Locations

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University of Rochester Medical Center (URMC), Vaccine Research Unit (Outpatient)

Rochester, New York, United States

Site Status

Countries

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United States

Other Identifiers

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URMC 16-001

Identifier Type: -

Identifier Source: org_study_id

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