Clinical Trials Logo

Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT05566639
Other study ID # mRNA-1010-P302
Secondary ID 2022-001638-12
Status Completed
Phase Phase 3
First received
Last updated
Start date September 14, 2022
Est. completion date January 5, 2024

Study information

Verified date January 2024
Source ModernaTX, Inc.
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The purpose of this study is to evaluate the safety and efficacy of mRNA-1010 in preventing seasonal influenza in adults 50 years and older.


Recruitment information / eligibility

Status Completed
Enrollment 22510
Est. completion date January 5, 2024
Est. primary completion date January 5, 2024
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 50 Years and older
Eligibility Inclusion Criteria: - Investigator has assessed that the participant understands and is willing and physically able to comply with protocol mandated follow-up, including all procedures. - For female participants of childbearing potential: negative pregnancy test, adequate contraception or has abstained from all activities that could result in pregnancy for at least 28 days prior to the first dose on Day 1, and agreement to continue adequate contraception through 90 days following vaccine administration. Exclusion Criteria: - Participant has had close contact with someone with laboratory-confirmed influenza infection or with someone who has been treated with antiviral therapies for influenza (for example, Tamiflu®) within the past 5 days prior to the Screening visit. - Participant has had close contact to someone with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection or COVID-19 as defined by the US CDC or has had a positive SARS-CoV-2 test in the past 10 days prior to the Screening visit. - Participant is acutely ill or febrile (temperature =38.0?elcius [100.4°Fahrenheit]) 72 hours prior to or at the Screening visit or Day 1. Participants meeting this criterion may be rescheduled within the 28-day screening window. - Participant has a history of a diagnosis or condition that, in the judgment of the investigator, is clinically unstable or may affect participant safety, assessment of safety endpoints, assessment of immune response, or adherence to study procedures. - Reported history of congenital or acquired immunodeficiency, immunocompromising/ immunosuppressive condition, asplenia, or recurrent severe infections. - Reported history of anaphylaxis or severe hypersensitivity reaction after receipt of any mRNA or influenza vaccines or any components of the mRNA or influenza vaccines, including egg protein. - Participant has received systemic immunosuppressant drugs for >14 days in total within 180 days prior to the Screening visit (for glucocorticosteroids, =10 milligrams (mg)/day of prednisone or equivalent) or is anticipating the need for systemic immunosuppressive treatment at any time during participation in the study. Inhaled, nasal, and topical steroids are allowed. - Participant has received any vaccine authorized or approved by local health agency =28 days prior to study intervention (Day 1) or plans to receive a vaccine authorized or approved by local health agency within 28 days before or after the study intervention. - Participant is unaware whether they have received an influenza vaccine in the previous influenza season. - Participant received a seasonal influenza vaccine or any other investigational influenza vaccine within 180 days prior to Day 1 - Participant has tested positive for influenza by local health authority-approved testing methods within 180 days prior to Day 1. - Participant has donated =450 milliliters (mL) of blood products within 28 days prior to the Screening visit or plans to donate blood products during the study. Note: Other inclusion and exclusion criteria may apply.

Study Design


Related Conditions & MeSH terms


Intervention

Biological:
mRNA-1010
Sterile liquid for injection
Licensed quadrivalent inactivated seasonal influenza vaccine
Sterile suspension for injection.

Locations

Country Name City State
Bulgaria MHAT Sveti Ivan Rilski Kozloduy
Bulgaria MC City Clinic Sveti Georgi - Montana Montana
Bulgaria MHAT "Dr. Stamen Iliev Montana
Bulgaria Medical Center Medconsult Pleven Pleven
Bulgaria Military Medical Academy Sofia
Bulgaria SHAT of Pneumo-phthisiatric diseases - Sofia District Sofia
Canada Aggarwal and Associates LTD Brampton
Canada Aviva Clinical Trials Group Inc Burlington
Canada Hamilton Medical Research Group Hamilton
Canada Okanagan Clinical Trials Kelowna
Canada Centricity Research Quebec City Levis
Canada Milestone Research Inc. London
Canada Yang Medicine Ottawa
Canada LMC Manna Pointe-Claire
Canada Alpha Recherche Clinique Inc Quebec
Canada Clinique de Lebourgneuf Quebec
Canada Clinique spécialisée en allergie - Allergy/Immunology/Asthma/Mpoc Quebec
Canada DIEX Research Quebec Inc. Quebec
Canada DIEX Research Quebec Inc. Quebec
Canada Diex Research Sherbrooke Inc Quebec
Canada Central Alberta Research Clinic Red Deer
Canada Diex Recherche - Joilette - HyperCore - PPDS Saint-Charles-Borromée
Canada Glencar Medical Inc. Sarnia
Canada Canadian Phase Onward Inc. Toronto
Canada LMC Toronto
Canada Manna Research Toronto
Canada Medicine Professional Corporation Toronto
Canada Toronto Western Hospital Toronto
Canada Diex Recherche Trois-Rivières Trois-Rivieres
Canada Colchester East Hants Health Authority - Colchester Regional Truro
Canada Diex Recherche Victoriaville Victoriaville
Denmark Aarhus Universitetshospital Århus N
Denmark Odense University Hospital Odense
Denmark Sjællands UniHosp, Roskilde - Medicine and Infectious Diseases Roskilde
Estonia Center for Clinical and Basic Research Tallinn
Estonia Innomedica OÜ Tallinn
Estonia Merelahe Family Doctors Centre Tallinn
Estonia Clinical Research Center Tartu
Germany Berliner Centrum für Reise- und Tropenmedizin Berlin
Germany Emovis GmbH Berlin
Germany Klinische Forschung Berlin Berlin
Germany Klinische Forschung Berlin-Mitte GmbH Berlin
Germany Klinische Forschung Dresden GmbH Dresden
Germany Medizentrum Essen Borbeck Essen
Germany IKF Pneumologie Frankfurt
Germany Infektiologikum Frankfurt-Sachsenhausen Frankfurt
Germany Studienzentrum Dr. Keller Frankfurt/Main
Germany Clinical Research Hamburg GmbH Hamburg
Germany Klinische Forschung Hamburg GmbH Hamburg
Germany Klinische Forschung Hannover-Mitte GmbH Hannover
Germany Siteworks GmbH Hannover
Germany Siteworks GmbH Heidelberg
Germany University Hospital Cologne AöR Köln
Germany Synexus Clinical Research GmbH Leipzig
Germany Praxis Illies Magdeburg
Germany Dermatologie Quist Mainz
Germany Praxis Schaum Oldenburg
Germany Klinische Forschung Schwerin GmbH Schwerin
Germany Hautarztpraxis Leitz & Kollegen Stuttgart
Germany Studienzentrum Brinkum Wardenburg
Netherlands Leids Universitair Medisch Centrum (LUMC) Leiden
Netherlands Universitair Medisch Centrum (UMC) Utrecht - Julius Center for Health Sciences and Primary Care Utrecht
Poland Centrum Medyczne Pratia Bydgoszcz Bydgoszcz
Poland Centrum Medyczne Plejady Krakow
Poland Krakowskie Centrum Medyczne Sp. z o.o. Kraków
Poland Centrum Medyczne AMED Oddzial w Lodzi Lodz
Poland ETG Lublin Lublin
Poland KO-MED Centra Kliniczne Lublin II Lublin
Poland ETG Skierniewice Skierniewice
Poland Centrum Innowacyjnych Terapii Sp. z o.o. Warszawa
Poland Provita Centrum Medyczne Sp. z o.o. Warszawa
Poland RCMed Warszawa
Poland ETG Zamosc Zamosc
Poland KO-MED Centra Kliniczne Sp. z o.o. Zamosc
Spain Hospital de Antequera Antequera
Spain Hospital Clinic De Barcelona Barcelona
Spain Hospital Santa Creu i Sant Pau - Research institut Barcelona
Spain Universitat Autonoma de Barcelona (UAB) - Institut d'Investigacio en Atencio Primaria Jordi Gol (IDIAP Jordi Gol) Barcelona
Spain Hospital Alvaro Cunqueiro Vigo
Spain Hospital Povisa Vigo
Taiwan Kaohsiung Veterans General Hospital Kaohsiung City
Taiwan China Medical University Hospital - division of Rheumatology - Taichung Taichung
Taiwan National Cheng Kung University hospital Tainan
Taiwan National Taiwan University Hospital - Family Medicine Taipei
Taiwan Taipei Medical University - Taipei Medical University Hospital Taipei
Taiwan Taipei Medical University - WanFang Hospital Taipei
Taiwan Tri-Service General Hospital - Neihu Branch - Infectious Diseases Taipei
United Kingdom Royal United Hospital Bath
United Kingdom Layton Medical Centre Blackpool
United Kingdom Hull University Teaching Hospitals NHS Foundation trust Hull
United Kingdom University Hospitals of Leicester-Leicester Royal Hospital Leicester
United Kingdom Liverpool University Hospitals NHS Foundation Trust - Aintree University Hospital (Fazakerley Hospital) Liverpool
United Kingdom GST NHS Found London
United Kingdom Newcastle University - Institute of Cellular Medicine (ICM) Newcastle
United Kingdom Panthera Biopartners - Manchester - multispeciality Rochdale
United Kingdom Panthera Biopartners - Sheffield - multispeciality Rochdale
United Kingdom Panthera Biopartners - Preston - multispeciality Salford
United Kingdom Southampton General Hospital Southampton
United Kingdom Royal Cornwall Hospitals Trust - Respiratory Truro
United States Radiant Research Akron Ohio
United States Velocity Clinical Research, Greenville Anderson South Carolina
United States Privia Medical Group Annapolis Maryland
United States North Alabama Research Center, LLC Athens Alabama
United States Tekton Research, Inc Austin Texas
United States Velocity Clinical Research, Banning Banning California
United States Meridian Clinical Research Baton Rouge Louisiana
United States Platinum Research Network, LLC Beaumont Texas
United States Paul G Matherne MD Biloxi Mississippi
United States United Medical Associates Binghamton New York
United States Cope Family Medicine Bountiful Utah
United States Hope Clinical Research, LLC Canoga Park California
United States Tekton Research, Inc. Chamblee Georgia
United States Tryon Medical Group Charlotte North Carolina
United States Great Lakes Clinical Trials LLC Chicago Illinois
United States Great Lakes Clinical Trials LLC Chicago Illinois
United States CTI Clinical Research Center Cincinnati Ohio
United States Sterling Research Group Cincinnati Ohio
United States Velocity Clinical Research - Cincinnati Cincinnati Ohio
United States Velocity Clinical Research - Columbia Columbia South Carolina
United States Southeast Regional Research Group Columbus Georgia
United States MedPharmics Covington Louisiana
United States Nature Coast Clinical Research, LLC - Crystal River Crystal River Florida
United States Zenos Clinical Research Dallas Texas
United States iResearch Atlanta, LLC Decatur Georgia
United States Velocity Clinical Research, Denver Denver Colorado
United States CCT Research at Skyline Medical Center, PC Elkhorn Nebraska
United States Carolina Institute for Clinical Research Fayetteville North Carolina
United States Arthritis & Rheumatology - Clinic of Northern Colorado Fort Collins Colorado
United States Benchmark Research Fort Worth Texas
United States CCT Research / Methodist Physicians Clinic, Prairie Fields Family Medicine, PC Fremont Nebraska
United States Velocity Clinical Research, Gaffney Gaffney South Carolina
United States Lenzmeier Family Medicine Glendale Arizona
United States Meridian Clinical Research Grand Island Nebraska
United States Velocity Clinical Research - Grants Pass Grants Pass Oregon
United States Velocity Clinical Research - Greenville Greenville South Carolina
United States DELRICHT RESEARCH at GULFPORT MEMORIAL Gulfport Mississippi
United States Great Lakes Clinical Trials LLC Gurnee Illinois
United States Delricht Research Hendersonville Tennessee
United States Floridian Clinical Research Hialeah Florida
United States Homestead Associates in Research,Inc Hialeah Florida
United States Olympus Family Medicine/CCT Research Holladay Utah
United States Broward Research Group Hollywood Florida
United States DM Clinical Research Houston Texas
United States Texas Center for Drug Development, Inc. Houston Texas
United States Marvel Clinical Research Huntington Beach California
United States Citrus Cardiology Consultants Inverness Florida
United States Encore Research Group-Jacksonville Center for Clinical Resea Jacksonville Florida
United States Health Awareness, Inc Jupiter Florida
United States Velocity Clinical Research, Chula Vista La Mesa California
United States Velocity Clinical Research, San Diego La Mesa California
United States Multi-Therapeutic Research Associates, Inc. Lake City Florida
United States Accel Research Sites - Lakeland Lakeland Florida
United States CCT Research Las Vegas Nevada
United States Clinical Research Center of Nevada LLC Las Vegas Nevada
United States Santa Rosa Medical Centers of Nevada/ CCT Research Las Vegas Nevada
United States Johnson County Clin-Trials (JCCT) Lenexa Kansas
United States Be Well Clinical Studies, LLC Lincoln Nebraska
United States Baptist Health Center for Clinical Research Little Rock Arkansas
United States Lynn Institute of the Ozarks Little Rock Arkansas
United States Longmont Medical Research Network Longmont Colorado
United States Velocity Clinical Research - Westlake Los Angeles California
United States ARS - Meridien Research Maitland Florida
United States DELRICHT RESEARCH at ZOMNIR FAMILY MEDICINE McKinney Texas
United States Velocity Clinical Resarch - Medford Medford Oregon
United States Velocity Clinical Research - Boise Meridian Idaho
United States Medpharmics, LLC Metairie Louisiana
United States Clinical Trials of Florida, LLC Miami Florida
United States Miami centre of clinical research Miami Florida
United States South Florida Research Center, Inc. Miami Florida
United States Suncoast Research Associates Trials, LLC Miami Florida
United States Global Health Research Center Miami Lakes Florida
United States Montana Medical Research, Inc Missoula Montana
United States Diabetes & Endocrinology Consultants Morehead City North Carolina
United States Carolina Health Specialists Myrtle Beach South Carolina
United States Nathan H Fischman MD LLC New Orleans Louisiana
United States Heartland Research Associates LLC Newton Kansas
United States In-Quest Medical Research Norcross Georgia
United States Medpace, Inc. - Clinical Pharmacology Unit (CPU) Norfolk Nebraska
United States Meridian Clinical Research Norfolk Nebraska
United States Las Vegas Clinical Trials, LLC North Las Vegas Nevada
United States Lynn Health Science Institute Oklahoma City Oklahoma
United States Meridian Clinical Research - Omaha Omaha Nebraska
United States Midwest Regional Health Services, LLC/CCT Research Omaha Nebraska
United States Papillon Research Centre Omaha Nebraska
United States Innovation Medical Research Center,inc Palmetto Bay Florida
United States CCT Research Phoenix Arizona
United States Research Your Health Plano Texas
United States Empire Clinical Research Pomona California
United States Meridian Clinical Research Portsmouth Virginia
United States M3 Wake Research, Inc. Raleigh North Carolina
United States Black Hills Center for American Indian Health Rapid City South Dakota
United States Epic Medical Research, LLC Red Oak Texas
United States Clinical Research Partners, LLC Richmond Virginia
United States Chicago Health Medical Group River Forest Illinois
United States Artemis Institute for Clinical Research Riverside California
United States Benchmark Research-Texas Riverside California
United States Rochester Clinical Research, Inc Rochester New York
United States Rockville Internal Medicine Group Rockville Maryland
United States Peninsula Research Associates (PRA) Rolling Hills Estates California
United States Sundance Clinical Research, LLC Saint Louis Missouri
United States CenExel - JBR Salt Lake City Utah
United States Clinical Trials of Texas, Inc San Antonio Texas
United States Acclaim Clinical Research San Diego California
United States Artemis Institute for Clinical Research San Diego California
United States Medical Center for Clinical Research San Diego California
United States Women's Health Care Research Corp. San Diego California
United States Shawn K Hassler MD San Francisco California
United States West Coast Research LLC San Ramon California
United States Mount Vernon Clinical Research Sandy Springs Georgia
United States Meridian Clinical Research - Savannah Savannah Georgia
United States Meridian Clinical Research - Dakota Dunes Sioux City Iowa
United States South Ogden Family Medicine clinic/CCT South Ogden Utah
United States DM Clinical Research - Detroit Southfield Michigan
United States Spartanburg Regional Health Services Spartanburg South Carolina
United States Delricht Research Springfield Massachusetts
United States National Medical University and Embryonic Tissues Center EmC Springfield Missouri
United States Clinical Research Atlanta Stockbridge Georgia
United States Lakeview Medical Center Suffolk Virginia
United States Breco Research - A Tarheel Clinical Research Site Sugar Land Texas
United States DM Clinical Research Sugar Land Texas
United States Velocity Clinical Research - Syracuse Syracuse New York
United States New Tampa Health, Inc Tampa Florida
United States Fiel Family and Sports Medicine/CCT Research Tempe Arizona
United States Noble Clinical Research Tucson Arizona
United States Delricht Research Tulsa Tulsa Oklahoma
United States Velocity Clinical Research - Valparaiso Valparaiso Indiana
United States Velocity Clinical Research - Providence Warwick Rhode Island
United States Velocity Clinical Research - Salt Lake City West Jordan Utah
United States Alliance for Multispecialty Research Wichita Kansas
United States PMG Research of Wilmington Wilmington North Carolina
United States Trial Management Associates Wilmington North Carolina
United States Wake Forest Baptist Medical Center Winston-Salem North Carolina
United States Platinum Research Network, LLC Yukon Oklahoma

Sponsors (1)

Lead Sponsor Collaborator
ModernaTX, Inc.

Countries where clinical trial is conducted

United States,  Bulgaria,  Canada,  Denmark,  Estonia,  Germany,  Netherlands,  Poland,  Spain,  Taiwan,  United Kingdom, 

Outcome

Type Measure Description Time frame Safety issue
Primary Number of Participants with Solicited Local and Systemic Reactogenicity Adverse Reactions (ARs) Up to Day 7 (7 days after vaccination)
Primary Number of Participants with Unsolicited Adverse Events (AEs) Up to Day 28 (28 days after vaccination)
Primary Number of Participants with Serious Adverse Events (SAEs), Adverse Events of Special Interest (AESIs), Medically Attended Adverse Events (MAAEs), and AEs Leading to Discontinuation Day 1 through Day 361
Primary Time to First Episode of Reverse Transcription Polymerase Chain Reaction (RT-PCR) Confirmed Protocol-Defined Influenza-Like Illness (ILI) Caused by Any Influenza A or B Virus Strains 14 days post-vaccination through Day 181 or end of influenza season, whichever ends later
Secondary Time to First Episode of RT-PCR Confirmed Protocol-Defined ILI Caused by Any Influenza A or B Virus Strains with Similarity to the Vaccine Strains Similarity to strains selected for the seasonal vaccine will be determined by antigenicity testing and/or genomic sequencing. 14 days post-vaccination through Day 181 or end of influenza season, whichever ends later
Secondary Time to First Episode of RT-PCR Confirmed Protocol-Defined ILI Caused by Any Influenza A or B Virus Strains Antigenically Matched to the Vaccine Strains Antigenically matched to strains selected for the seasonal vaccine will be determined by antigenicity testing. 14 days post-vaccination through Day 181 or end of influenza season, whichever ends later
Secondary Time to First Episode of RT-PCR Confirmed United States (US) Centers for Disease Control and Prevention (CDC)-Defined ILI Caused by Any Influenza A or B Virus Strains Any strains include any influenza A or B strains, influenza A or B strains with similarity to vaccine strains and influenza A or B strains that are antigenically matched to vaccine strains. Antigenically matched to strains selected for the seasonal vaccine will be determined by antigenicity testing. 14 days post-vaccination through Day 181 or end of influenza season, whichever ends later
Secondary Time to First Episode of Culture-Confirmed Protocol-Defined ILI Caused by Any Influenza A or B Any influenza A or B strains regardless of antigenic match to strains selected for the seasonal vaccine.
A positive result for influenza infection by viral culture is needed, following a positive result for influenza infection by RT-PCR.
14 days post-vaccination through Day 181 or end of influenza season, whichever ends later
Secondary Time to First Episode of Culture-Confirmed CDC-Defined ILI Caused by Any Influenza A or B Any influenza A or B strains regardless of antigenic match to strains selected for the seasonal vaccine.
A positive result for influenza infection by viral culture is needed, following a positive result for influenza infection by RT-PCR
14 days post-vaccination through Day 181 or end of influenza season, whichever ends later
Secondary Number of Participants With Hospitalizations Associated With RT-PCR Confirmed Protocol-Defined ILI 14 days post-vaccination through Day 181 or end of influenza season, whichever ends later
Secondary Geometric Mean Titer (GMT) as Measured by Hemagglutination Inhibition (HAI) Assay Day 29
Secondary Number of Participants Reaching Seroconversion as measured by HAI Assay Seroconversion is defined as either a prevaccination HAI titer <1:10 and a postvaccination titer =1:40 or a prevaccination HAI titer =1:10 and a minimum 4-fold rise in postvaccination HAI antibody titer. Day 29
Secondary Number of Participants with a Titer =1:40 as Measured by HAI Assay Day 29
Secondary Change from Baseline in Geometric Mean Fold Rise (GMFR) at Day 29 as Measured by HAI Assay Baseline, Day 29
See also
  Status Clinical Trial Phase
Completed NCT01209780 - Safety and Immunogenicity of Trivalent Subunit Inactivated Flu Vaccine Administered to Healthy Children and Adolescents 3 to 17 Years of Age Phase 3
Completed NCT01180621 - Evaluation of Seasonal Influenza Vaccine for 2010-2011 in Young Children Phase 2
Completed NCT01206686 - The Effect of Time-Slot Scheduling on Flu Vaccination Rates N/A
Recruiting NCT06049927 - A Phase III Clinical Trial of Quadrivalent Influenza Vaccine in Healthy Subjects Aged 6 to 35 Months Phase 3
Completed NCT04133584 - The Immunogenicity and Safety of the Vaccination of Inactivated Enterovirus 71 Vaccine and Seasonal Influenza Vaccine Phase 4
Completed NCT00957996 - Safety Study of IV Peramivir in Hospitalized Subjects With Confirmed or Suspected Influenza Phase 3
Completed NCT01072799 - Safety and Immunogenicity of an A (H1N1) 2009 Influenza Virus-like Particle (VLP) Vaccine Phase 2
Completed NCT01207232 - The Effect of a Planning Prompt on Seasonal Influenza Vaccination Rates N/A
Completed NCT04997239 - A Clinical Trial of Quadrivalent Influenza Vaccine in Children Aged 3-8 Years Old Phase 4
Completed NCT05512494 - Lot-to-lot Consistency of Quadrivalent Influenza Vaccine (Split Virion), Inactivated Phase 4
Terminated NCT00958776 - A Study to Evaluate the Efficacy and Safety of IV Peramivir in Addition to Standard of Care Compared to Standard of Care Alone in Adults and Adolescents Who Are Hospitalized Due to Influenza Phase 3
Completed NCT01011582 - Characteristics and Outcomes of Intensive Care Unit Patients Admitted With Novel H1N1 Influenza or Seasonal Influenza N/A
Completed NCT00560066 - Safety of a Influenza Vaccine Produced Either in Mammalian Cell Culture or in Embryonated Hen Eggs in Adults and Elderly With and Without Underlying Medical Conditions, and Immunogenicity in a Subset of Subjects With Underlying Medical Conditions Phase 4
Active, not recruiting NCT05397223 - A Study of Modified mRNA Vaccines in Healthy Adults Phase 1
Completed NCT04896086 - First-in-Human Clinical Trial of a Mosaic Quadrivalent Influenza Vaccine Compared With a Licensed Inactivated Seasonal QIV, in Healthy Adults Phase 1
Completed NCT01344057 - Study to Evaluate Safety and Immunogenicity of Sub-unit Adjuvanted Influenza Vaccine Administered to Elderly Subjects, Formulation 2011-2012 Phase 2
Completed NCT01342796 - Humoral and Cell Mediated Immunity and Safety of MF59C.1-adjuvanted Subunit Influenza Vaccine or a Conventional Subunit Influenza Vaccine in Previously Unvaccinated Healthy Subjects Phase 2
Completed NCT00903552 - Trial to Evaluate Safety and Immunogenicity of Trivalent Seasonal Influenza Virus-Like Particle (VLP) Vaccine (Recombinant) Phase 2
Completed NCT05827068 - A Study of mRNA-1011.1, mRNA-1011.2, and mRNA-1012.1 Candidate Seasonal Influenza Vaccines in Healthy Adults Phase 1/Phase 2
Completed NCT05415462 - A Study of mRNA-1010 Seasonal Influenza Vaccine in Adults Phase 3