SARS-CoV-2Phase 1/2NCT05375838
A Safety, Reactogenicity, and Immunogenicity Study of mRNA-1073 (COVID-19/Influenza) Vaccine in Adults 18 to 75 Years Old
A Phase 1/2 study testing mRNA-1073, mRNA-1010 and mRNA-1273 in people with SARS-CoV-2 and Influenza, run by ModernaTX, Inc. at 14 sites in United States.
Trial summary
The primary goal of this study is to evaluate the safety, reactogenicity, and immunogenicity of mRNA-1073 compared to co-administered mRNA-1010 and mRNA-1273 vaccines and to the individual vaccines alone in healthy participants. Read more about this study
- Who is it for?
- Ages 18 to 75 yearsHealthy volunteers can take part
- Conditions the study is for
- SARS-CoV-2, Influenza
- What is being tested?
- mRNA-1073, mRNA-1010 and mRNA-1273
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 550 participants
- Where
- 14 sitesUnited States
- Study dates
- 13 May 2022to 29 Dec 2022
- Phase
- Phase 1/2
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 75 years
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- Body mass index (BMI) of 18 kilograms per meter squared (kg/m^2) to 35 kg/m^2 (inclusive) at the Screening Visit.
- Participants must have been fully vaccinated for COVID-19 primary series according to the locally authorized or approved regimen, and their last COVID-19 vaccine (primary series or booster) was ≥ 120 days prior to the randomization visit (or less per local guidance).
Who cannot join
- Participant is acutely ill or febrile (temperature ≥ 38.0℃ [100.4°F]) 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 and will retain their initially assigned participant number.
- 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. Clinically unstable is defined as a diagnosis or condition requiring significant changes in management or medication ≤ 60 days prior to Screening and includes ongoing workup of an undiagnosed illness that could lead to a new diagnosis or condition. Asymptomatic conditions and conditions with no evidence of end organ involvement (for example, mild hypertension, dyslipidemia) are not exclusionary, provided that they are being appropriately managed and are clinically stable (for example, unlikely to result in symptomatic illness within the time course of this study). Illnesses or conditions may be exclusionary, even if otherwise stable, due to therapies used to treat them (for example, immune-modifying treatments), at the discretion of the investigator.
- Participant has a reported history of congenital or acquired immunodeficiency, immunosuppressive condition, or immune-mediated disease.
- Participant has dermatologic conditions that could affect local solicited adverse reaction (AR) assessments (for example, tattoos, psoriasis patches affecting skin over the deltoid areas).
- Participant has a reported history of anaphylaxis or severe hypersensitivity reaction after receipt of any mRNA vaccine(s) or any components of the mRNA vaccines.
- Participant has a reported history of bleeding disorder that is considered a contraindication to IM injection or phlebotomy.
Show all 21Show fewer
- Participant has a diagnosis of malignancy within previous 10 years (excluding nonmelanoma skin cancer).
- Participant has any medical, psychiatric, or occupational condition, including reported history of drug or alcohol abuse, that, in the opinion of the investigator, might pose additional risk due to participation in the study or could interfere with the interpretation of study results.
- Participant has received systemic immunosuppressants or immune-modifying drugs for > 14 days in total within 6 months prior to Screening (for corticosteroids ≥ 10 mg/day of prednisone or equivalent) or is anticipating the need for immunosuppressive treatment at any time during participation in the study. Inhaled, nasal, topical steroids are not exclusionary.
- Participant has received or plans to receive any vaccine authorized or approved by a local health agency ≤ 28 days prior to study injections (Day 1) or plans to receive a vaccine authorized or approved by a local health agency within 28 days before or after the study injections.
- Participant has received a seasonal influenza vaccine or any other investigational influenza vaccine ≤ 180 days prior to the randomization visit.
- Participant has tested positive for influenza by local health authority approved testing methods ≤ 180 days prior to the Screening Visit.
- Participant has had close contact to someone with SARS-CoV-2 infection or COVID-19 as defined by the US CDC in the past 10 days prior to the Screening Visit.
- Participant has known history of SARS-CoV-2 infection within ≤ 90 days.
- Participant has received systemic immunoglobulins or blood products ≤ 90 days prior to the Screening Visit or plans to receive systemic immunoglobulins or blood products during the study.
- Participant has a history of myocarditis, pericarditis, or myopericarditis.
- 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.
- Participated in an interventional clinical study within 28 days prior to the Screening Visit based on the medical history interview or plans to do so while participating in this study.
- Participant is an immediate family member or household member of study personnel, study site staff, or Sponsor personnel.
- Phase 1 Specific Exclusion Criteria:
- Participant has clinical screening laboratory values (total white blood cell count, hemoglobin, platelets, alanine aminotransferase (ALT), aspartate aminotransferase (AST), creatinine, alkaline phosphatase, and total bilirubin) > Grade 1.
Trial locations and contacts
14 sites in 1 country.
14 sites in 1 country
United States14 sites
Benchmark Research
Austin, Texas, 78705
Meridian
Binghamton, New York, 13901
Meridian
Cincinnati, Ohio, 45219
Meridian
Cincinnati, Ohio, 45246
Benchmark Research
Fort Worth, Texas, 76135
Research Centers of America
Hollywood, Florida, 33024
DM Clinical Research - CyFair
Houston, Texas, 77065
DM Clinical Research - TCDD
Houston, Texas, 77081
Benchmark Research
Metairie, Louisiana, 70006
Meridian
Norfolk, Nebraska, 68701
AES - DRS - Optimal Research Illinois - Peoria
Peoria, Illinois, 61614
Rochester Clinical Research Inc
Rochester, New York, 14609
J Lewis Research
Salt Lake City, Utah, 84121
Meridian
Sioux City, Iowa, 51106
About this study
Official title: Phase 1/2, Randomized, Stratified, Observer-blind Study to Evaluate the Safety, Reactogenicity, and Immunogenicity of mRNA-1073 (SARS-CoV-2 and Influenza Vaccine) Compared to Co-administered mRNA-1010 (Influenza) and mRNA-1273 (SARS-CoV-2) Vaccines and to mRNA- 1010 Vaccine and mRNA-1273 Vaccine Alone in Healthy Adults 18-75 Years of Age
The primary goal of this study is to evaluate the safety, reactogenicity, and immunogenicity of mRNA-1073 compared to co-administered mRNA-1010 and mRNA-1273 vaccines and to the individual vaccines alone in healthy participants.
- Conditions
- SARS-CoV-2, Influenza
- Being tested
- mRNA-1073, mRNA-1010, mRNA-1273, Placebo
- Medical subject headings
- Influenza, Human
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
mRNA-1073Biological
Sterile liquid for injection
mRNA-1010Biological
Sterile liquid for injection
mRNA-1273Biological
Sterile liquid for injection
PlaceboBiological
0.9% sodium chloride (normal saline) injection
| Study group | Role | What they receive |
|---|---|---|
| mRNA-1273 Plus Placebo | Experimental | Participants will receive 2 intramuscular (IM) injections, one in each arm, of mRNA-1273 plus placebo at the specified dose level on Day 1. Receives: Biological: mRNA-1273; Biological: Placebo |
| mRNA-1010 Plus Placebo | Experimental | Participants will receive 2 IM injections, one in each arm, of mRNA-1010 plus placebo at the specified dose level on Day 1. Receives: Biological: mRNA-1010; Biological: Placebo |
| mRNA-1010 Plus mRNA-1273 | Experimental | Participants will receive 2 IM injections, one in each arm, of mRNA-1010 plus mRNA-1273 at the specified dose level on Day 1. Receives: Biological: mRNA-1010 |
| Dose A: mRNA-1073 Plus Placebo | Experimental | Participants will receive 2 IM injections, one in each arm, of mRNA-1073 plus placebo at the specified dose level on Day 1. Receives: Biological: mRNA-1073; Biological: Placebo |
| Dose B: mRNA-1073 Plus Placebo | Experimental | Participants will receive 2 IM injections, one in each arm, of mRNA-1073 plus placebo at the specified dose level on Day 1. Receives: Biological: mRNA-1073; Biological: Placebo |
| Dose C: mRNA-1073 Plus Placebo | Experimental | Participants will receive 2 IM injections, one in each arm, of mRNA-1073 plus placebo at the specified dose level on Day 1. Receives: Biological: mRNA-1073; Biological: Placebo |
What is being measured
The primary outcome is the main question the study is designed to answer.
Number of Participants With Solicited Local and Systemic Adverse Reaction (ARs)
Solicited ARs (local and systemic) were collected in the electronic diary (eDiary). Local ARs included: pain at injection site, erythema (redness) at injection site, swelling/induration (hardness) at injection site, and localized axillary swelling or tenderness ipsilateral to the injection arm. Systemic ARs included: headache, fatigue, myalgia (muscle aches all over the body), arthralgia (aching in several joints), nausea/vomiting, rash, body temperature (potentially fever), and chills. Note, that not all solicited ARs were considered adverse events (AEs). The Investigator reviewed whether the solicited AR was also to be recorded as an AE. A Summary of all serious AEs (SAEs) and all nonserious AEs ("Other"), regardless of causality, is in Reported "Adverse Events" section.
Measured: Up to Day 8 (7 days post vaccination)
Number of Participants With Unsolicited Adverse Events (AEs)
An AE was defined as any untoward medical occurrence associated with the use of a drug in humans, whether or not considered drug related. A treatment-emergent AE (TEAE) was defined as any event not present before exposure to vaccine or any event already present that worsens in intensity or frequency after exposure. Any abnormal laboratory test result (hematology, clinical chemistry, or prothrombin time [PT]/partial thromboplastin time [PTT]) or other safety assessment (for example, electrocardiogram, radiological scan, vital sign measurement), including one that worsens from baseline and is considered clinically significant in the medical and scientific judgment of the Investigator. A summary of SAEs and all nonserious AEs ("Other") reported up to the end of the study, regardless of causality, is located in the Reported "Adverse Events" section.
Measured: Up to Day 29 (28 days post vaccination)
Number of Participants With Serious Adverse Events (SAEs), Adverse Events of Special Interest (AESIs), Medically-Attended AEs (MAAEs) and AEs Leading to Discontinuation
An SAE was defined as any AE that resulted in death, is life-threatening, required inpatient hospitalization or prolongation of existing hospitalization, resulted in disability/permanent damage, was a congenital anomaly/birth defect, or was an important medical event. AESIs included thrombocytopenia, new onset of or worsening of the protocol specified neurologic diseases, anaphylaxis, and myocarditis/pericarditis. An MAAE is an AE that leads to an unscheduled visit to a healthcare practitioner. This would include visits to a study site for unscheduled assessments (for example, abnormal laboratory follow-up, and/or COVID-19 and visits to healthcare practitioners external to the study site (for example, urgent care, primary care physician). A summary of SAEs and all nonserious AEs ("Other"), regardless of causality, is located in the Reported "Adverse Events" section.
Measured: Up to Day 181
Secondary outcomes (6)
Geometric Mean Titer of Anti-Hemagglutinin Antibodies at Day 29, as Measured by Hemagglutination Inhibition Assay (HAI) For Vaccine-Matched Seasonal Influenza A and B Strains
Seasonal influenza A included H1N1 and H3N2 and seasonal influenza B strains included BV and BY.
Measured: Day 29
Geometric Mean Titer of VAC62 Neutralizing Antibody at Day 29, as Measured by Pseudovirus Neutralization Assay (or Binding Antibody Assay) For Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2)
Measured: Day 29
Geometric Mean Fold Rise of Anti-Hemagglutinin Antibodies at Day 29, as Measured by Hemagglutination Inhibition Assay (HAI) For Vaccine-Matched Seasonal Influenza A and B Strains
Seasonal influenza A included H1N1 and H3N2 and seasonal influenza B strains included BV and BY.
Measured: Day 29
Geometric Mean Fold Rise of VAC62 Neutralizing Antibody at Day 29, as Measured by Pseudovirus Neutralization Assay (or Binding Antibody Assay) For SARS-CoV-2
The GMFR measures the changes in immunogenicity titers or levels from Baseline within participants. 95% CI was calculated based on the difference in the log-transformed values for GMFR, then back transformed to the original scale for presentation.
Measured: Day 29
Percentage of Participants With Seroconversion as Measured by HAI Assay For Vaccine-Matched Seasonal Influenza A and B Strains
Seroconversion at a participant level is defined as a pre-vaccination HAI titer < 1:10 and a post-vaccination HAI titer >= 1:40 or a pre-vaccination HAI titer >= 1:10 and a minimum 4-fold rise in post vaccination HAI antibody titer.
Measured: Day 29
Percentage of Participants With Seroresponse as Measured by PsVNA (or Binding Antibody Assay) For SARS-CoV-2
Seroresponse at a participant level is defined as an increase from below the lower limit of quantification (LLOQ) to >= 4 x LLOQ if baseline neutralizing antibody (nAb) level is < LLOQ, or >= 4 fold rise if baseline nAb level is >=LLOQ.
Measured: Day 29
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted17 May 2022
- Study start13 May 2022
- Primary completion29 Dec 2022
- Study completion29 Dec 2022
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (2)Papers the sponsor has linked to this study.
- Other trials for SARS-CoV-2Studies of the same condition, open and under way.
- More trials run by ModernaTX, Inc.The sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 1/2
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind
- Who is masked
- Participant, Care provider, Investigator, Outcomes assessor
- Enrolment
- 550 participants (actual)
Sponsor and investigators
- Lead sponsor
- ModernaTX, Inc.
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05375838
- Sponsor's protocol ID
- mRNA-1073-P101
- Status last verified
- Jan 2024
- First submitted
- 13 May 2022
- Last updated
- 28 Feb 2024
- Results posted
- Yes, on ClinicalTrials.gov
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
Publications
Rudman Spergel AK, Henry C, Nachbagauer R, Kaplonek P, Astley E, Avanesov A, Bertera H, Carmona L, Cizmeci D, Collins A, Embry A, Guo R, Mao X, Pucci A, Shao S, Shih-Lu-Lee J, Yu WH, Brune D, Chu L, Irfan M, Alter G, Ananworanich J, Shaw CA. Phase 1/2 randomized, observer-blind clinical trial of a first-generation, mRNA-based vaccine against seasonal influenza and COVID-19 in healthy adults. Hum Vaccin Immunother. 2026 Dec;22(1):2589644. doi: 10.1080/21645515.2025.2589644. Epub 2026 Feb 2.
PubMed 41627968Sanchez-Martinez ZV, Alpuche-Lazcano SP, Stuible M, Akache B, Renner TM, Deschatelets L, Dudani R, Harrison BA, McCluskie MJ, Hrapovic S, Blouin J, Wang X, Schuller M, Cui K, Cho JY, Durocher Y. SARS-CoV-2 spike-based virus-like particles incorporate influenza H1/N1 antigens and induce dual immunity in mice. Vaccine. 2024 Dec 2;42(26):126463. doi: 10.1016/j.vaccine.2024.126463. Epub 2024 Oct 30.
PubMed 39481241
Study at a glance
From the registry record, last updated by the sponsor on 28 Feb 2024. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Phase 1/2, Randomized, Stratified, Observer-blind Study to Evaluate the Safety, Reactogenicity, and Immunogenicity of mRNA-1073 (SARS-CoV-2 and Influenza Vaccine) Compared to Co-administered mRNA-1010 (Influenza) and mRNA-1273 (SARS-CoV-2) Vaccines and to mRNA- 1010 Vaccine and mRNA-1273 Vaccine Alone in Healthy Adults 18-75 Years of Age
- ClinicalTrials.gov ID
- NCT05375838
- Acronym / sponsor ID
- mRNA-1073-P101
- Conditions
- SARS-CoV-2, Influenza
- Phase
- Phase 1/2
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 550 participants (actual)
- Lead sponsor
- ModernaTX, Inc.Industry (pharma, biotech, devices)
- Study start
- 13 May 2022 (actual)
- Primary completion
- 29 Dec 2022 (actual)
- Study completion
- 29 Dec 2022 (actual)
- First posted
- 17 May 2022 (actual)
- Results
- Posted 28 Feb 2024
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The primary goal of this study is to evaluate the safety, reactogenicity, and immunogenicity of mRNA-1073 compared to co-administered mRNA-1010 and mRNA-1273 vaccines and to the individual vaccines alone in healthy participants.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind (participant, care provider, investigator, outcomes assessor)
- Number of arms
- 6
| Arm | Type | Receives |
|---|---|---|
| mRNA-1273 Plus Placebo | Experimental | Biological: mRNA-1273, Biological: PlaceboParticipants will receive 2 intramuscular (IM) injections, one in each arm, of mRNA-1273 plus placebo at the specified dose level on Day 1. |
| mRNA-1010 Plus Placebo | Experimental | Biological: mRNA-1010, Biological: PlaceboParticipants will receive 2 IM injections, one in each arm, of mRNA-1010 plus placebo at the specified dose level on Day 1. |
| mRNA-1010 Plus mRNA-1273 | Experimental | Biological: mRNA-1010Participants will receive 2 IM injections, one in each arm, of mRNA-1010 plus mRNA-1273 at the specified dose level on Day 1. |
| Dose A: mRNA-1073 Plus Placebo | Experimental | Biological: mRNA-1073, Biological: PlaceboParticipants will receive 2 IM injections, one in each arm, of mRNA-1073 plus placebo at the specified dose level on Day 1. |
| Dose B: mRNA-1073 Plus Placebo | Experimental | Biological: mRNA-1073, Biological: PlaceboParticipants will receive 2 IM injections, one in each arm, of mRNA-1073 plus placebo at the specified dose level on Day 1. |
| Dose C: mRNA-1073 Plus Placebo | Experimental | Biological: mRNA-1073, Biological: PlaceboParticipants will receive 2 IM injections, one in each arm, of mRNA-1073 plus placebo at the specified dose level on Day 1. |
Who may qualify
- Ages
- 18 to 75 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (2 listed)
- Body mass index (BMI) of 18 kilograms per meter squared (kg/m^2) to 35 kg/m^2 (inclusive) at the Screening Visit.
- Participants must have been fully vaccinated for COVID-19 primary series according to the locally authorized or approved regimen, and their last COVID-19 vaccine (primary series or booster) was ≥ 120 days prior to the randomization visit (or less per local guidance).
Key exclusion criteria (21 listed)
- Participant is acutely ill or febrile (temperature ≥ 38.0℃ [100.4°F]) 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 and will retain their initially assigned participant number.
- 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. Clinically unstable is defined as a diagnosis or condition requiring significant changes in management or medication ≤ 60 days prior to Screening and includes ongoing workup of an undiagnosed illness that could lead to a new diagnosis or condition. Asymptomatic conditions and conditions with no evidence of end organ involvement (for example, mild hypertension, dyslipidemia) are not exclusionary, provided that they are being appropriately managed and are clinically stable (for example, unlikely to result in symptomatic illness within the time course of this study). Illnesses or conditions may be exclusionary, even if otherwise stable, due to therapies used to treat them (for example, immune-modifying treatments), at the discretion of the investigator.
- Participant has a reported history of congenital or acquired immunodeficiency, immunosuppressive condition, or immune-mediated disease.
- Participant has dermatologic conditions that could affect local solicited adverse reaction (AR) assessments (for example, tattoos, psoriasis patches affecting skin over the deltoid areas).
- Participant has a reported history of anaphylaxis or severe hypersensitivity reaction after receipt of any mRNA vaccine(s) or any components of the mRNA vaccines.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| mRNA-1073Sterile liquid for injection | Biological | Dose A: mRNA-1073 Plus Placebo, Dose B: mRNA-1073 Plus Placebo, Dose C: mRNA-1073 Plus Placebo |
| mRNA-1010Sterile liquid for injection | Biological | mRNA-1010 Plus Placebo, mRNA-1010 Plus mRNA-1273 |
| mRNA-1273Sterile liquid for injection | Biological | mRNA-1273 Plus Placebo |
| Placebo0.9% sodium chloride (normal saline) injection | Biological | Dose A: mRNA-1073 Plus Placebo, Dose B: mRNA-1073 Plus Placebo, Dose C: mRNA-1073 Plus Placebo, mRNA-1010 Plus Placebo, mRNA-1273 Plus Placebo |
Primary outcome
Number of Participants With Solicited Local and Systemic Adverse Reaction (ARs)
Time frame: Up to Day 8 (7 days post vaccination)
Solicited ARs (local and systemic) were collected in the electronic diary (eDiary). Local ARs included: pain at injection site, erythema (redness) at injection site, swelling/induration (hardness) at injection site, and localized axillary swelling or tenderness ipsilateral to the injection arm. Systemic ARs included: headache, fatigue, myalgia (muscle aches all over the body), arthralgia (aching in several joints), nausea/vomiting, rash, body temperature (potentially fever), and chills. Note, that not all solicited ARs were considered adverse events (AEs). The Investigator reviewed whether the solicited AR was also to be recorded as an AE. A Summary of all serious AEs (SAEs) and all nonserious AEs ("Other"), regardless of causality, is in Reported "Adverse Events" section.
Number of Participants With Unsolicited Adverse Events (AEs)
Time frame: Up to Day 29 (28 days post vaccination)
An AE was defined as any untoward medical occurrence associated with the use of a drug in humans, whether or not considered drug related. A treatment-emergent AE (TEAE) was defined as any event not present before exposure to vaccine or any event already present that worsens in intensity or frequency after exposure. Any abnormal laboratory test result (hematology, clinical chemistry, or prothrombin time [PT]/partial thromboplastin time [PTT]) or other safety assessment (for example, electrocardiogram, radiological scan, vital sign measurement), including one that worsens from baseline and is considered clinically significant in the medical and scientific judgment of the Investigator. A summary of SAEs and all nonserious AEs ("Other") reported up to the end of the study, regardless of causality, is located in the Reported "Adverse Events" section.
Number of Participants With Serious Adverse Events (SAEs), Adverse Events of Special Interest (AESIs), Medically-Attended AEs (MAAEs) and AEs Leading to Discontinuation
Time frame: Up to Day 181
An SAE was defined as any AE that resulted in death, is life-threatening, required inpatient hospitalization or prolongation of existing hospitalization, resulted in disability/permanent damage, was a congenital anomaly/birth defect, or was an important medical event. AESIs included thrombocytopenia, new onset of or worsening of the protocol specified neurologic diseases, anaphylaxis, and myocarditis/pericarditis. An MAAE is an AE that leads to an unscheduled visit to a healthcare practitioner. This would include visits to a study site for unscheduled assessments (for example, abnormal laboratory follow-up, and/or COVID-19 and visits to healthcare practitioners external to the study site (for example, urgent care, primary care physician). A summary of SAEs and all nonserious AEs ("Other"), regardless of causality, is located in the Reported "Adverse Events" section.
6 secondary outcomes
Geometric Mean Titer of Anti-Hemagglutinin Antibodies at Day 29, as Measured by Hemagglutination Inhibition Assay (HAI) For Vaccine-Matched Seasonal Influenza A and B Strains
Time frame: Day 29
Geometric Mean Titer of VAC62 Neutralizing Antibody at Day 29, as Measured by Pseudovirus Neutralization Assay (or Binding Antibody Assay) For Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2)
Time frame: Day 29
Geometric Mean Fold Rise of Anti-Hemagglutinin Antibodies at Day 29, as Measured by Hemagglutination Inhibition Assay (HAI) For Vaccine-Matched Seasonal Influenza A and B Strains
Time frame: Day 29
Geometric Mean Fold Rise of VAC62 Neutralizing Antibody at Day 29, as Measured by Pseudovirus Neutralization Assay (or Binding Antibody Assay) For SARS-CoV-2
Time frame: Day 29
Percentage of Participants With Seroconversion as Measured by HAI Assay For Vaccine-Matched Seasonal Influenza A and B Strains
Time frame: Day 29
Percentage of Participants With Seroresponse as Measured by PsVNA (or Binding Antibody Assay) For SARS-CoV-2
Time frame: Day 29
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 28 Feb 2024.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Derived from this study: PubMed 41627968Rudman Spergel AK, Henry C, Nachbagauer R, Kaplonek P, Astley E, Avanesov A, Bertera H, Carmona L, Cizmeci D, Collins A, Embry A, Guo R, Mao X, Pucci A, Shao S, Shih-Lu-Lee J, Yu WH, Brune D, Chu L, Irfan M, Alter G, Ananworanich J, Shaw CA. Phase 1/2 randomized, observer-blind clinical trial of a first-generation, mRNA-based vaccine against seasonal influenza and COVID-19 in healthy adults. Hum Vaccin Immunother. 2026 Dec;22(1):2589644. doi: 10.1080/21645515.2025.2589644. Epub 2026 Feb 2.
- Derived from this study: PubMed 39481241Sanchez-Martinez ZV, Alpuche-Lazcano SP, Stuible M, Akache B, Renner TM, Deschatelets L, Dudani R, Harrison BA, McCluskie MJ, Hrapovic S, Blouin J, Wang X, Schuller M, Cui K, Cho JY, Durocher Y. SARS-CoV-2 spike-based virus-like particles incorporate influenza H1/N1 antigens and induce dual immunity in mice. Vaccine. 2024 Dec 2;42(26):126463. doi: 10.1016/j.vaccine.2024.126463. Epub 2024 Oct 30.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
14 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 1/2 study testing mRNA-1073, mRNA-1010 and mRNA-1273 in people with SARS-CoV-2 and Influenza, run by ModernaTX, Inc. at 14 sites in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 2 inclusion and 21 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 28 Feb 2024. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 14 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this combined phase mean?
Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.
Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Yes. Results are posted in the registry (first posted 28 Feb 2024). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Number of Participants With Solicited Local and Systemic Adverse Reaction (ARs) (time frame: Up to Day 8 (7 days post vaccination)). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT05375838, which also lists 2 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 28 Feb 2024.