Safety and Immunogenicity of RSVpreF Coadministered With SIIV in Adults ≥65 Years of Age

  • STATUS
    Recruiting
  • days left to enroll
    25
  • participants needed
    2230
  • sponsor
    Pfizer
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Updated on 19 June 2022
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Summary

The purpose of this study is to assess the safety and immunogenicity of RSVpreF when coadministered with SIIV compared to sequential administration of the vaccines when given 1 month apart (SIIV followed by RSVpreF). Additionally, the study will contribute data supporting the development of RSVpreF as a prophylactic vaccine against RSV disease in infants through maternal immunization and in older adults through active vaccination.

Description

This Phase 3, multicenter, parallel-group, placebo-controlled, randomized, double-blind study will be conducted in Australia and/or another southern hemisphere country.

Healthy adults ≥65 years of age will be randomized 1:1 to either the coadministration group (RSVpreF + SIIV)/placebo or the sequential-administration group (placebo + SIIV)/RSVpreF. This study design intends to use a single lot of NIP SIIV that is specifically indicated for use in adults ≥65 years of age.

There are 3 scheduled study visits each 1 month apart. To assess immunogenicity, 30 mL blood will be collected prior to vaccination at Visit 1 and Visit 2, and at Visit 3.

Local reactions (redness, swelling, and pain at the injection site) occurring at the RSVpreF or placebo injection site (left deltoid) and systemic events (fever, headache, fatigue, nausea, vomiting, diarrhea, muscle pain, and joint pain) occurring within 7 days after each vaccination visit (Visit 1 and Visit 2) will be prompted for and collected daily by the participant in an e-diary device or smartphone app. SIIV injection site reactions will not be routinely collected in the e-diary.

AEs and SAEs will be collected from the signing of informed consent through Visit 3.

Details
Condition Respiratory Syncytial Virus
Treatment Placebo, RSVpreF Vaccine, Seasonal Inactivated Influenza Vaccine
Clinical Study IdentifierNCT05301322
SponsorPfizer
Last Modified on19 June 2022

Eligibility

 Yes No Not Sure

Inclusion Criteria

Male and female participants ≥65 years of age at the time of consent
Participants who are willing and able to comply with scheduled visits, laboratory tests, lifestyle considerations, and other study procedures, including daily completion of the e diary for 7 days after each study vaccination
Healthy participants who are determined by medical history, physical examination and clinical judgment of the investigator to be eligible for inclusion in the study
Capable of giving signed informed consent

Exclusion Criteria

Bleeding diathesis or condition associated with prolonged bleeding time that may contraindicate IM injection
History of severe adverse reaction associated with a vaccine and/or severe allergic reaction (eg, anaphylaxis) to any component of the study intervention or any related vaccine
Allergy to egg proteins (egg or egg products) or chicken proteins
History of Guillain-Barré syndrome
Serious chronic disorder, including metastatic malignancy, end-stage renal disease with or without dialysis, clinically unstable cardiac disease, or any other disorder that, in the investigator's opinion, excludes the participant from participating in the study
Immunocompromised individuals with known or suspected immunodeficiency, as determined by history and/or laboratory/physical examination
Other medical or psychiatric condition, including recent (within the past year) or active suicidal ideation/behavior, or laboratory abnormality that may increase the risk of study participation or, in the investigator's judgment, make the participant inappropriate for the study
Previous vaccination with any licensed or investigational RSV vaccine at any time prior to enrollment, or planned receipt throughout the study of nonstudy RSV vaccine
Previous vaccination with any influenza vaccine within 6 months before study intervention administration, or planned receipt of any nonstudy licensed or investigational influenza vaccine during study participation
Receipt of any blood/plasma products or immunoglobulin, from 60 days before study intervention administration, or planned receipt throughout the study
Individuals who receive chronic treatment with immunosuppressive therapy, including cytotoxic agents, monoclonal antibodies, systemic corticosteroids, or radiotherapy, eg, for cancer or an autoimmune disease, from 60 days before study intervention administration or planned receipt throughout the study. If systemic corticosteroids (<20 mg/day of prednisone or equivalent) have been administered short term (<14 days) for treatment of an acute illness, participants should not be enrolled in the study until corticosteroid therapy has been discontinued for at least 28 days before study intervention administration. Inhaled/nebulized, intra articular, intrabursal, or topical (skin or eyes) corticosteroid use is permitted
Current alcohol abuse or illicit drug use
Current use of any prohibited concomitant medication(s) or those unwilling/unable to use a permitted concomitant medication(s)
Participation in other studies involving investigational product(s) within 28 days prior to consent and/or during study participation
Investigator site staff or Pfizer employees directly involved in the conduct of the study, site staff otherwise supervised by the investigator, and their respective family members
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Additional screening procedures may be conducted by the study team before you can be confirmed eligible to participate.

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If you are confirmed eligible after full screening, you will be required to understand and sign the informed consent if you decide to enroll in the study. Once enrolled you may be asked to make scheduled visits over a period of time.

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Complete your scheduled study participation activities and then you are done. You may receive summary of study results if provided by the sponsor.

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