Study to Assess Safety and Immunogenicity of an Egg-based H5N8 Influenza Vaccine at Multiple Dose Levels Adjuvanted With Matrix-M in Healthy Participants 18 Years of Age and Above.
A Phase 1/2, Parallel, Observer-blind Study to Assess the Safety and Immunogenicity of an Egg-based H5N8 Influenza Vaccine at Multiple Dose Levels Adjuvanted With Matrix-M in Healthy Participants 18 Years of Age and Above.
The study aims to evaluate an egg-based H5N8 influenza vaccine up to 3 dose levels (low, medium, and high dose) given with or without adjuvant to see if the adjuvant improves vaccine effectiveness.
The study will enroll healthy adults aged 18 years and over. Participants will receive 2 injections in their arm of either one of the 3 dose levels of the study vaccine (low, medium, or high dose) with the adjuvant or the unadjuvanted vaccine (high dose).
Study duration per participant: approximately 14 months (including screening visit).
Studienübersicht
Status
Status
Bedingungen
Bedingungen
Intervention / Behandlung
Intervention / Behandlung
Studientyp
Studientyp
Einschreibung (Geschätzt)
Einschreibung
Phase
Phase
- Phase 2
- Phase 1
Kontakte und Standorte
Studienkontakt
Studienkontakt
- Name: Trial Transparency email recommended (Toll free for US & Canada)
- Telefonnummer: option 6 800-633-1610
- E-Mail: contact-us@sanofi.com
Studienorte
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Arizona
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Tempe, Arizona, Vereinigte Staaten, 85281
- Rekrutierung
- AMR Clinical Phoenix, Arizona- Site Number : 8400004
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California
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Rolling Hills Estates, California, Vereinigte Staaten, 90274
- Rekrutierung
- Peninsula Research Associates- Site Number : 8400011
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San Diego, California, Vereinigte Staaten, 92123
- Rekrutierung
- California Research Foundation- Site Number : 8400007
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Florida
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Coral Gables, Florida, Vereinigte Staaten, 33134
- Rekrutierung
- Alliance for Multispeciality Research - Coral Gables- Site Number : 8400003
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DeLand, Florida, Vereinigte Staaten, 32720
- Rekrutierung
- Accel Research Sites Network - DeLand Clinical Research Unit- Site Number : 8400017
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Fort Myers, Florida, Vereinigte Staaten, 33912
- Rekrutierung
- Alliance for Multispeciality Research - Fort Myers- Site Number : 8400001
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Miami Lakes, Florida, Vereinigte Staaten, 33016
- Rekrutierung
- Indago Research & Health Center- Site Number : 8400010
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Georgia
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Decatur, Georgia, Vereinigte Staaten, 30030
- Rekrutierung
- Accel Research Sites - NeuroStudies- Site Number : 8400014
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Decatur, Georgia, Vereinigte Staaten, 30030
- Rekrutierung
- iResearch Atlanta- Site Number : 8400008
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Illinois
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Oak Brook, Illinois, Vereinigte Staaten, 60523
- Rekrutierung
- AMR Chicago- Site Number : 8400005
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Kansas
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Newton, Kansas, Vereinigte Staaten, 67114
- Rekrutierung
- AMR Clinical Newton, Kansas- Site Number : 8400006
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New York
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Rochester, New York, Vereinigte Staaten, 14609
- Rekrutierung
- Rochester Clinical Research- Site Number : 8400012
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South Carolina
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North Charleston, South Carolina, Vereinigte Staaten, 29405
- Rekrutierung
- Coastal Carolina Research Center - North Charleston- Site Number : 8400018
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Tennessee
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Knoxville, Tennessee, Vereinigte Staaten, 37909
- Rekrutierung
- Alliance for Multispecialty Research - Weisgarber Medical Park- Site Number : 8400002
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Utah
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Salt Lake City, Utah, Vereinigte Staaten, 84107
- Rekrutierung
- CenExel JRB - Salth Lake City- Site Number : 8400009
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Virginia
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Charlottesville, Virginia, Vereinigte Staaten, 22911
- Rekrutierung
- Charlottesville Medical Research- Site Number : 8400016
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Teilnahmekriterien
Zulassungskriterien
Zulassungskriterien
Studienberechtigtes Alter
- Erwachsene
- Älterer Erwachsener
Akzeptiert gesunde Freiwillige
Beschreibung
Inclusion Criteria:
- Aged 18 years or above on the day of inclusion
- Participants who are healthy as determined by medical evaluation including medical history
- Not pregnant/breastfeeding; non-childbearing potential or uses effective contraception/abstinence from ≥4 weeks before the first study intervention dose to ≥8 weeks after the last dose
- Informed consent form has been signed and dated
- Able to attend all scheduled visits and to comply with all study procedures
- Covered by health insurance, if required by local regulations
Exclusion Criteria:
- Known or suspected immunodeficiency; immunosuppressive therapy in past 6 months; or long-term systemic corticosteroid (eg, prednisone for more than 2 weeks in the past 3 months)
- Known hepatitis B or hepatitis C infection (based on medical history)
- Known personal or family history of previous episodes of Guillan-Barré syndrome (GBS), neuritis (including Bell's palsy), convulsions, encephalitis, transverse myelitis, and vasculitis
- Known systemic hypersensitivity to any of the study intervention components or history of life-threatening reaction to the study interventions or products with same substances
- Self-reported thrombocytopenia contraindicating intramuscular (IM) injection based on investigator's judgment
- Bleeding disorder, or receipt of anticoagulants in the 3 weeks preceding inclusion, contraindicating IM injection based on investigator's judgment
- Chronic illness that, in the opinion of the investigator, is at a stage where it might interfere with study conduct or completion
- History of A/H5 infection prior to the study participation
- Moderate or severe acute illness/infection (per investigator judgment)/fever (≥ 38.0°C [≥ 100.4°F]) on study intervention day. Include participant only after the condition or fever has resolved
- Alcohol, prescription drug, or substance abuse that, in the opinion of the investigator, might interfere with the study conduct or completion
- Any vaccine given 4 weeks before first study intervention or any planned vaccination to be given prior to Day 43 (ie, approximately 21 days after the second study intervention)
- Previous vaccination against A(H5) with an investigational or marketed vaccine. This includes, but is not limited to, influenza subtypes A(H5N1), A(H5N8), and A(H5N6)
- Has received a blood transfusion or blood-derived products, including immunoglobulins in the past 3 months
- Participation in another clinical study for a vaccine, drug, medical device, or medical procedure within 4 weeks before enrollment or planned participation during the present study period
- Deprived of freedom by an administrative or court order, or in an emergency setting, or hospitalized involuntarily
- Is an investigator, investigator/study center employee, or immediate family member (parent, spouse, natural/adopted child) of the investigator/employee with direct involvement in the study
- Any screening safety laboratory parameters out of normal ranges and assessed as > Grade 2
The above information is not intended to contain all considerations relevant to a participant's potential participation in a clinical trial.
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
- Hauptzweck: Verhütung
- Zuteilung: Zufällig
- Interventionsmodell: Parallele Zuordnung
- Maskierung: Doppelt
Anzahl der Arme
Waffen und Interventionen
Teilnehmergruppe / ArmTeilnehmergruppe / Arm |
Intervention / BehandlungIntervention / Behandlung |
|---|---|
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Experimental: Group 1: Flu H5 egg pandemic low dose vaccine, with adjuvant
Participants receive 2 intramuscular injections of flu H5 egg pandemic low dose vaccine, with adjuvant
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Pharmaceutical form: Suspension for injection Route of administration: Intramuscular (IM)
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Experimental: Group 2: Flu H5 Egg Pandemic medium dose vaccine, with adjuvant
Participants receive 2 intramuscular injections of flu H5 egg pandemic medium dose vaccine, with adjuvant
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Pharmaceutical form: Suspension for injection Route of administration: Intramuscular (IM)
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Experimental: Group 3: Flu H5 Egg Pandemic high dose vaccine, with adjuvant
Participants receive 2 intramuscular injections of flu H5 egg pandemic high dose vaccine, with adjuvant
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Pharmaceutical form: Suspension for injection Route of administration: Intramuscular (IM)
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Experimental: Group 4: Flu H5 Egg Pandemic high dose vaccine, without adjuvant
Participants receive 2 intramuscular injections of flu H5 egg pandemic high dose vaccine, without adjuvant
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Pharmaceutical form: Suspension for injection Route of administration: Intramuscular (IM)
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Was misst die Studie?
Primäre Ergebnismessungen
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
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Number of participants with immediate Adverse Events (AEs)
Zeitfenster: Within 30 minutes after each vaccination
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Immediate adverse events are medically relevant unsolicited systemic adverse events reported in the 30 minutes after vaccination
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Within 30 minutes after each vaccination
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Number of participants experiencing solicited administration site reactions (pre-listed in the participant diary and case report form [CRF])
Zeitfenster: Within 8 days of each vaccination, including the day of vaccination
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A solicited reaction is an adverse reaction (sign or symptom) observed and reported under the conditions pre-listed (for example: injection site pain or headache).
Solicited administration site reactions are reactions at and around the injection/administration site
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Within 8 days of each vaccination, including the day of vaccination
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Number of participants experiencing solicited systemic reactions (pre-listed in the participant diary and CRF)
Zeitfenster: Within 8 days of each vaccination, including the day of vaccination
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All solicited reactions that are not solicited injection or administration site reactions
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Within 8 days of each vaccination, including the day of vaccination
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Number of participants experiencing unsolicited AEs
Zeitfenster: Within 21 days after the first vaccination, including the day of the first vaccination, and within 28 days after the second vaccination, including the day of the second vaccination
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Unsolicited AE: an observed AE that does not fulfill the conditions of solicited reactions
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Within 21 days after the first vaccination, including the day of the first vaccination, and within 28 days after the second vaccination, including the day of the second vaccination
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Number of participants experiencing Medically Attended Adverse Events (MAAEs)
Zeitfenster: From Day 01 until the end of the study, approximately 14 months
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MAAEs are collected throughout the study
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From Day 01 until the end of the study, approximately 14 months
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Number of participants experiencing Adverse Events of Special Interest (AESIs)
Zeitfenster: From Day 01 until the end of the study, approximately 14 months
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AESIs are collected throughout the study
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From Day 01 until the end of the study, approximately 14 months
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Number of participants experiencing Serious Adverse Events (SAEs)
Zeitfenster: From Day 01 until the end of the study, approximately 14 months
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SAEs are collected throughout the study
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From Day 01 until the end of the study, approximately 14 months
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Number of participants experiencing out-of-range biological test results (including shift from baseline values)
Zeitfenster: Up to 8 days after each vaccination
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Safety laboratory assessments will include clinical chemistry and hematology
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Up to 8 days after each vaccination
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Number of participants experiencing AEs leading to discontinuation
Zeitfenster: From Day 01 until the end of the study, approximately 14 months
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AEs leading to discontinuation are collected throughout the study
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From Day 01 until the end of the study, approximately 14 months
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Geometric mean titer of hemagglutination inhibition (HAI) assay antibody (Ab) titer
Zeitfenster: Day 01 and Day 43
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Influenza vaccine antibody titers are measured by HAI assay
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Day 01 and Day 43
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Number of participants with HAI Ab titer ≥ 40 (1 dilution [dil]; ie, seroprotection)
Zeitfenster: Day 43
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Influenza vaccine antibody titers are measured by HAI assay
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Day 43
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Number of participants with seroconversion
Zeitfenster: Day 01 and Day 43
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Seroconversion is defined as HAI Ab titer < 10 (1/dil) on Day 01 and post-injection titer ≥ 40 (1/dil) on Day 43; or defined as HAI Ab titer ≥ 10 (1/dil) on Day 01 and a ≥ 4-fold increase in titer (1/dil) on Day 43
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Day 01 and Day 43
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Geometric mean titer ratio of individual HAI Ab titer ratio Day 43/Day 01
Zeitfenster: Day 01 and Day 43
|
Influenza vaccine antibody titers are measured by HAI assay
|
Day 01 and Day 43
|
Sekundäre Ergebnismessungen
Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
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Geometric mean titer of hemagglutination inhibition (HAI) assay antibody (Ab) titer obtained on Day 01, Day 22, Day 43, Day 202
Zeitfenster: Day 01, Day 22, Day 43, Day 202
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Influenza vaccine antibody titers are measured by HAI assay
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Day 01, Day 22, Day 43, Day 202
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Geometric mean titer ratio of individual HAI Ab titer ratios Day 22/Day 01, Day 43/Day 01, Day 202/Day 43
Zeitfenster: Day 01, Day 22, Day 43, Day 202
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Individual HAI Ab titer ratios are calculated for the following time points: Day 22/Day 01, Day 43/Day 01 and Day 202/Day 43
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Day 01, Day 22, Day 43, Day 202
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Number of participants with individual HAI Ab titer ≥ 40 (1/dil) on Day 01, Day 22, Day 43, Day 202
Zeitfenster: Day 01, Day 22, Day 43, Day 202
|
Influenza vaccine antibody titers are measured by HAI assay
|
Day 01, Day 22, Day 43, Day 202
|
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Number of participants with seroconversion on Day 22 compared to Day 01 (baseline)
Zeitfenster: Day 01, Day 22
|
Seroconversion is defined as titer < 10 (1/dil) on Day 01 and post-injection titer ≥ 40 (1/dil) on Day 22; or defined as titer ≥ 10 (1/dil) on Day 01 and a ≥ 4 fold increase in titer (1/dil) on Day 22
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Day 01, Day 22
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Number of participants with detectable HAI Ab titer
Zeitfenster: Day 01, Day 22, Day 43, Day 202
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Detectable HAI Ab titer: a titer ≥ 10 (1/dil)
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Day 01, Day 22, Day 43, Day 202
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Geometric mean titer of neutralization (NT) Ab titer
Zeitfenster: Day 01, Day 22, Day 43, Day 202
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Influenza vaccine antibody titers are measured by serum neutralization (SN) assay
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Day 01, Day 22, Day 43, Day 202
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Geometric mean titer ratio of individual NT Ab titer ratio
Zeitfenster: Day 01, Day 22, Day 43, Day 202
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Individual NT Ab titer ratios are calculated for the following time points: Day 22/Day 01, Day 43/Day 01 and Day 202/Day 43
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Day 01, Day 22, Day 43, Day 202
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Number of participants with NT Ab titer ≥ 20 (1/dil)
Zeitfenster: Day 01, Day 43, Day 202
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NT Ab titer ≥ 20 (1/dil) on Day 43; compared to Day 01 and Day 202
|
Day 01, Day 43, Day 202
|
|
Number of participants with NT Ab titer ≥ 40 (1/dil)
Zeitfenster: Day 01, Day 43, Day 202
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NT Ab titer ≥ 40 (1/dil) on Day 43; compared to Day 01 and Day 202
|
Day 01, Day 43, Day 202
|
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Number of participants with NT Ab titer ≥ 80 (1/dil)
Zeitfenster: Day 01, Day 43, Day 202
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NT Ab titer ≥ 80 (1/dil) on Day 43; compared to Day 01 and Day 202
|
Day 01, Day 43, Day 202
|
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Geometric mean fold-rise of fold increase in NT Ab titer [post/pre] ≥ 2 and ≥ 4
Zeitfenster: Day 43
|
Influenza vaccine antibody titers are measured by serum neutralization (SN) assay
|
Day 43
|
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Number of participants with detectable NT Ab titer
Zeitfenster: Day 01, Day 22, Day 43, Day 202
|
Detectable NT Ab titer: a titer ≥ 10 (1/dil) on Day 01, Day 22, Day 43, Day 202
|
Day 01, Day 22, Day 43, Day 202
|
Mitarbeiter und Ermittler
Sponsor
Sponsor
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn (Tatsächlich)
Studienbeginn
Primärer Abschluss (Geschätzt)
Primärer Abschluss
Studienabschluss (Geschätzt)
Studienabschluss
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Tatsächlich)
Zuerst gepostet
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
Letztes Update gepostet
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Zusätzliche relevante MeSH-Bedingungen
Andere Studien-ID-Nummern
Andere Studien-ID-Nummern
- VBX21138
- U1111-1325-2670 (Registrierungskennung: ICTRP)
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Beschreibung des IPD-Plans
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