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This study aims to assess patient-reported experiences following trivalent recombinant influenza vaccine (RIV3) vaccination using the Vaccinees' Perception of Injection (VAPI) questionnaire, identify factors related to vaccine choice and future vaccination intentions in each case, and assess the cross-validity of VAPI, by establishing magnitude of correlations to EuroQol 5 Dimensions, 5 Levels (EQ-5D-5L) domains.
Participants will need approximately 30 minutes to complete the self-administered online survey. Individuals will be recruited via a U.S. retail chain partner that offers the RIV3 vaccine as part of their routine influenza vaccination program
This study will be conducted through an online survey that respondents will complete only if they meet the inclusion criteria and give their consent to continue to the main questionnaire. Each participant will complete the survey only once. Participants will provide details about their demographic data, health status, perceptions of flu vaccination and injection site reactions, as well as drivers for vaccine choice and future vaccine use.
In the 2024-2025 influenza season, the sponsor conducted a feasibility study to evaluate patient-reported severity, impact and tolerability of RIV3 local and systemic symptoms, as well as the overall experience of participants with vaccination. The study employed two validated instruments: the EQ-5D-5L and the VAPI , targeting participants aged 18 to 64 years.
For the 2025-2026 influenza season, the study sponsor intends to enhance participant enrollment to enable the generation of statistically robust and clinically meaningful data on the tolerability profile of RIV3. The resulting data are intended for dissemination through peer-reviewed scientific journals and presentation at international scientific conferences.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Trivalent Recombinant Influenza Vaccine (RIV3) |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Trivalent Recombinant Influenza Vaccine | Biological | This study will not administer any treatment, only observe the treatment as prescribed in real-world clinical practice |
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| Measure | Description | Time Frame |
|---|---|---|
| Proportion of Participants Reporting Incidence of Reactions (Local) Using Vaccinees' Perception of Injection (VAPI) Questionnaire (Age Groups [18-49 and 50-64 years]) | The VAPI questionnaire covers four sections. The first section collects information around pre-vaccination, including motivation, hesitancy, concerns, and routine changes. The second section focuses on the vaccination moment, specifically on vaccination experience regarding pain, anxiety, satisfaction with the vaccination platform, and information received. The third section focuses on post-vaccination experiences. The fourth section captures the overall vaccination experience in terms of tolerability, acceptability, and willingness to be vaccinated in the future. | Up to 21 days Post Vaccination |
| Proportion of Participants Reporting Incidence of reactions (Systemic) Using VAPI Questionnaire (Age Groups [18-49 and 50-64 years]) | The VAPI questionnaire covers four sections. The first section collects information around pre-vaccination, including motivation, hesitancy, concerns, and routine changes. The second section focuses on the vaccination moment, specifically on vaccination experience regarding pain, anxiety, satisfaction with the vaccination platform, and information received. The third section focuses on post-vaccination experiences. The fourth section captures the overall vaccination experience in terms of tolerability, acceptability, and willingness to be vaccinated in the future. | Up to 21 days Post Vaccination |
| Proportion of Participants Reporting Severity of Reactions (Local and Systemic) Using VAPI Questionnaire (Age groups [18-49 and 50-64 years]) | The VAPI questionnaire covers four sections. The first section collects information around pre-vaccination, including motivation, hesitancy, concerns, and routine changes. The second section focuses on the vaccination moment, specifically on vaccination experience regarding pain, anxiety, satisfaction with the vaccination platform, and information received. The third section focuses on post-vaccination experiences. The fourth section captures the overall vaccination experience in terms of tolerability, acceptability, and willingness to be vaccinated in the future. |
| Measure | Description | Time Frame |
|---|---|---|
| Frequencies of Factors Driving Patient Choices of RIV3 Score (Age Group 18-49 and 50-64 years) | VAPI and EuroQol 5 Dimensions, 5 Levels (EQ-5D-5L) questionnaires will be used. The VAPI questionnaire covers four sections. The first section collects information around pre-vaccination, including motivation, hesitancy, concerns, and routine changes. The second section focuses on the vaccination moment, specifically on vaccination experience regarding pain, anxiety, satisfaction with the vaccination platform, and information received. The third section focuses on post-vaccination experiences. The fourth section captures the overall vaccination experience in terms of tolerability, acceptability, and willingness to be vaccinated in the future. The EQ-5D-5L instrument consists of two main components. The first part measures five dimensions of health: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. The second part includes a visual analogue scale (EQ-VAS) where respondents rate their overall health. |
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Inclusion Criteria:
Exclusion Criteria:
The above information is not intended to contain all considerations relevant to a patient's potential participation in a clinical trial.
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The study will include individuals in the United States who have received the RIV3 vaccine within the past 21 days within a retail setting.
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Investigational site | Swiftwater | Pennsylvania | 18370 | United States |
Qualified researchers may request access to patient level data and related study documents including the clinical study report, study protocol with any amendments, blank case report form, statistical analysis plan, and dataset specifications. Patient level data will be anonymized and study documents will be redacted to protect the privacy of trial participants. Further details on Sanofi's data sharing criteria, eligible studies, and process for requesting access can be found at: https://vivli.org
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| Up to 21 days Post Vaccination |
| Vaccine Acceptability Score Using VAPI Questionnaire (Age groups [18-49 and 50-64 years]) | The VAPI questionnaire covers four sections. The first section collects information around pre-vaccination, including motivation, hesitancy, concerns, and routine changes. The second section focuses on the vaccination moment, specifically on vaccination experience regarding pain, anxiety, satisfaction with the vaccination platform, and information received. The third section focuses on post-vaccination experiences. The fourth section captures the overall vaccination experience in terms of tolerability, acceptability, and willingness to be vaccinated in the future. | Up to 21 days Post Vaccination |
| Impact on Daily Life Activities Score Using VAPI Questionnaire (Age groups [18-49 and 50-64 years]) | The VAPI questionnaire covers four sections. The first section collects information around pre-vaccination, including motivation, hesitancy, concerns, and routine changes. The second section focuses on the vaccination moment, specifically on vaccination experience regarding pain, anxiety, satisfaction with the vaccination platform, and information received. The third section focuses on post-vaccination experiences. The fourth section captures the overall vaccination experience in terms of tolerability, acceptability, and willingness to be vaccinated in the future. | Up to 21 days Post Vaccination |
| At the time of inclusion in the study |
| Proportions of factors driving patient choices of RIV3 score | VAPI and EQ-5D-5L questionnaires will be used. The VAPI questionnaire covers four sections. The first section collects information around pre-vaccination, including motivation, hesitancy, concerns, and routine changes. The second section focuses on the vaccination moment, specifically on vaccination experience regarding pain, anxiety, satisfaction with the vaccination platform, and information received. The third section focuses on post-vaccination experiences. The fourth section captures the overall vaccination experience in terms of tolerability, acceptability, and willingness to be vaccinated in the future. The EQ-5D-5L instrument consists of two main components. The first part measures five dimensions of health: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. The second part includes a visual analogue scale (EQ-VAS) where respondents rate their overall health. | At the time of inclusion in the study |
| Proportion of Participants Reporting Incidence of Reactions (Local) Using Vaccinees' Perception of Injection (VAPI) Questionnaire (Age Group 65 years and older) | The VAPI questionnaire covers four sections. The first section collects information around pre-vaccination, including motivation, hesitancy, concerns, and routine changes. The second section focuses on the vaccination moment, specifically on vaccination experience regarding pain, anxiety, satisfaction with the vaccination platform, and information received. The third section focuses on post-vaccination experiences. The fourth section captures the overall vaccination experience in terms of tolerability, acceptability, and willingness to be vaccinated in the future. | Up to 21 days Post Vaccination |
| Proportion of Participants Reporting Incidence of Reactions (Systemic) Using VAPI Questionnaire (Age Group 65 years and older) | The VAPI questionnaire covers four sections. The first section collects information around pre-vaccination, including motivation, hesitancy, concerns, and routine changes. The second section focuses on the vaccination moment, specifically on vaccination experience regarding pain, anxiety, satisfaction with the vaccination platform, and information received. The third section focuses on post-vaccination experiences. The fourth section captures the overall vaccination experience in terms of tolerability, acceptability, and willingness to be vaccinated in the future. | Up to 21 days Post Vaccination |
| Proportion of Participants Reporting Severity of Reactions (Local and Systemic) Using VAPI Questionnaire (Age Group 65 years and older) | The VAPI questionnaire covers four sections. The first section collects information around pre-vaccination, including motivation, hesitancy, concerns, and routine changes. The second section focuses on the vaccination moment, specifically on vaccination experience regarding pain, anxiety, satisfaction with the vaccination platform, and information received. The third section focuses on post-vaccination experiences. The fourth section captures the overall vaccination experience in terms of tolerability, acceptability, and willingness to be vaccinated in the future. | Up to 21 Days Post Vaccination |
| Vaccine Acceptability Score Using VAPI (Age Group 65 years and older) | The VAPI questionnaire covers four sections. The first section collects information around pre-vaccination, including motivation, hesitancy, concerns, and routine changes. The second section focuses on the vaccination moment, specifically on vaccination experience regarding pain, anxiety, satisfaction with the vaccination platform, and information received. The third section focuses on post-vaccination experiences. The fourth section captures the overall vaccination experience in terms of tolerability, acceptability, and willingness to be vaccinated in the future. | Up to 21 days Post Vaccination |
| Impact on Daily Life Activities Score Using VAPI (Age Group 65 years and older) | The VAPI questionnaire covers four sections. The first section collects information around pre-vaccination, including motivation, hesitancy, concerns, and routine changes. The second section focuses on the vaccination moment, specifically on vaccination experience regarding pain, anxiety, satisfaction with the vaccination platform, and information received. The third section focuses on post-vaccination experiences. The fourth section captures the overall vaccination experience in terms of tolerability, acceptability, and willingness to be vaccinated in the future. | Up to 21 Days Post Vaccination |
| Frequencies of Factors Driving Patient Choices of RIV3 Score (Age Group 65 years and older) | VAPI and EQ-5D-5L questionnaires will be used. The VAPI questionnaire covers four sections. The first section collects information around pre-vaccination, including motivation, hesitancy, concerns, and routine changes. The second section focuses on the vaccination moment, specifically on vaccination experience regarding pain, anxiety, satisfaction with the vaccination platform, and information received. The third section focuses on post-vaccination experiences. The fourth section captures the overall vaccination experience in terms of tolerability, acceptability, and willingness to be vaccinated in the future. The EQ-5D-5L instrument consists of two main components. The first part measures five dimensions of health: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. The second part includes a visual analogue scale (EQ-VAS) where respondents rate their overall health. | At the time of inclusion in the study |
| Correlation score between EQ-5D-5L and VAPI questionaries | By examining the correlation between these domains, the study intends to better understand how perceptions of injection-related adverse effects corelate to broader measures of health-related quality of life, notably those coming from a gold-standard and simpler instrument | At the time of inclusion in the study |
| ID | Term |
|---|---|
| D007251 | Influenza, Human |
| ID | Term |
|---|---|
| D012141 | Respiratory Tract Infections |
| D007239 | Infections |
| D009976 | Orthomyxoviridae Infections |
| D012327 | RNA Virus Infections |
| D014777 | Virus Diseases |
| D012140 | Respiratory Tract Diseases |
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