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Trial details imported from ClinicalTrials.gov

For full trial details, please see the original record at https://clinicaltrials.gov/study/NCT07071558




Registration number
NCT07071558
Ethics application status
Date submitted
8/07/2025
Date registered
17/07/2025
Date last updated
17/08/2025

Titles & IDs
Public title
Study to Evaluate the Safety and Immunogenicity of Investigational Vaccines Using the RSV (Respiratory Syncytial Virus) Monovalent Antigen in Healthy Participants 18 to 49 Years of Age
Scientific title
A Phase 1, Parallel, Randomized, Multi-center Study to Evaluate the Safety and Immunogenicity of Different LNP Formulations of mRNA Vaccines Using the RSV Monovalent Antigen in Healthy Participants 18 to 49 Years of Age
Secondary ID [1] 0 0
WHO UTN
Secondary ID [2] 0 0
VAV00026
Universal Trial Number (UTN)
Trial acronym
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Respiratory Syncytial Virus Immunization 0 0
Condition category
Condition code
Respiratory 0 0 0 0
Other respiratory disorders / diseases
Infection 0 0 0 0
Other infectious diseases
Infection 0 0 0 0
Studies of infection and infectious agents

Intervention/exposure
Study type
Interventional
Description of intervention(s) / exposure
Treatment: Other - RSV vaccine formulation 1 dose
Treatment: Other - RSV vaccine formulation 2 dose
Treatment: Other - RSV vaccine formulation 3 dose
Treatment: Other - RSV vaccine formulation 4 dose
Treatment: Other - RSV vaccine formulation 5 dose
Treatment: Other - RSV vaccine formulation 6 dose
Treatment: Other - RSV vaccine formulation 7 dose
Treatment: Other - RSV vaccine formulation 8 dose

Experimental: RSV Formulation 1 - Participants will receive a single IM (Intramuscular) injection on day 1 of the RSV vaccines according to their randomization schedule.

Experimental: RSV Formulation 2 - Participants will receive a single IM (Intramuscular) injection on day 1 of the RSV vaccines according to their randomization schedule.

Experimental: RSV Formulation 3 - Participants will receive a single IM (Intramuscular) injection on day 1 of the RSV vaccines according to their randomization schedule.

Experimental: RSV Formulation 4 - Participants will receive a single IM (Intramuscular) injection on day 1 of the RSV vaccines according to their randomization schedule.

Experimental: RSV Formulation 5 - Participants will receive a single IM (Intramuscular) injection on day 1 of the RSV vaccines according to their randomization schedule.

Experimental: RSV Formulation 6 - Participants will receive a single IM (Intramuscular) injection on day 1 of the RSV vaccines according to their randomization schedule.

Experimental: Control group 1 dose 1 - Participants will receive a single IM (Intramuscular) injection on day 1 of the RSV vaccines according to their randomization schedule.

Experimental: Control group 2 dose 2 - Participants will receive a single IM (Intramuscular) injection on day 1 of the RSV vaccines according to their randomization schedule.


Treatment: Other: RSV vaccine formulation 1 dose
Suspension for injection. Route of administration: IM injection

Treatment: Other: RSV vaccine formulation 2 dose
Suspension for injection. Route of administration: IM injection

Treatment: Other: RSV vaccine formulation 3 dose
Suspension for injection. Route of administration: IM injection

Treatment: Other: RSV vaccine formulation 4 dose
Suspension for injection. Route of administration: IM injection

Treatment: Other: RSV vaccine formulation 5 dose
Suspension for injection. Route of administration: IM injection

Treatment: Other: RSV vaccine formulation 6 dose
Suspension for injection. Route of administration: IM injection

Treatment: Other: RSV vaccine formulation 7 dose
Suspension for injection. Route of administration: IM injection

Treatment: Other: RSV vaccine formulation 8 dose
Suspension for injection. Route of administration: IM injection

Intervention code [1] 0 0
Treatment: Other
Comparator / control treatment
Control group

Outcomes
Primary outcome [1] 0 0
Presence of any unsolicited systemic adverse events (aes)
Timepoint [1] 0 0
Within 30 minutes after each vaccine injection
Primary outcome [2] 0 0
Presence of solicited injection site reactions (ie, pre-listed in the participant's diary and in the eCRF (electronic case report form)
Timepoint [2] 0 0
Through 7 days after each vaccine injection
Primary outcome [3] 0 0
Presence of solicited systemic reactions (ie, pre-listed in the participant diary and in the CRF)
Timepoint [3] 0 0
Through 7 days after each vaccine injection
Primary outcome [4] 0 0
Presence of unsolicited AEs
Timepoint [4] 0 0
Day 1 through day 29
Primary outcome [5] 0 0
Presence of SAEs (Serious Adverse Events) and AESIs (Adverse Events of Special Interest)
Timepoint [5] 0 0
Throughout study, approximately 6 months
Primary outcome [6] 0 0
Presence of out-of-range biological test results (including shift from baseline values)
Timepoint [6] 0 0
Through 7 days after each vaccine injection
Primary outcome [7] 0 0
RSV A nAb (Neutralizing Antibodies) titers
Timepoint [7] 0 0
At day 1 and day 29

Eligibility
Key inclusion criteria
* Aged 18 to 49 years on the day of inclusion
* A female participant is eligible to participate if she is not pregnant or breastfeeding and of the following conditions applies:

* Is of NCBP (Non-Child-Bearing Potential). To be considered of NCBP, a female must be post-menopausal for at least 1 year, or surgically sterile. OR
* Is of CBP (Child-Bearing Potential) and agrees to use an effective contraceptive method or abstinence from at least 4 weeks prior to study intervention administration until at least 12 weeks after study intervention administration.
Minimum age
18 Years
Maximum age
49 Years
Sex
Both males and females
Can healthy volunteers participate?
Yes
Key exclusion criteria
* Any condition which, in the opinion of the Investigator, might interfere with the evaluation of the study objectives
* The above information is not intended to contain all considerations relevant to a patient's potential participation in a clinical trial.

Study design
Purpose of the study
Prevention
Allocation to intervention
Randomised controlled trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Blinded (masking used)
Who is / are masked / blinded?
The people receiving the treatment/s
The people administering the treatment/s

The people analysing the results/data
Intervention assignment
Parallel
Other design features
Phase
Phase 1
Type of endpoint/s
Statistical methods / analysis

Recruitment
Recruitment status
Recruiting
Data analysis
Reason for early stopping/withdrawal
Other reasons
Date of first participant enrolment
Anticipated
Actual
Date of last participant enrolment
Anticipated
Actual
Date of last data collection
Anticipated
Actual
Sample size
Target
Accrual to date
Final
Recruitment in Australia
Recruitment state(s)
NSW,QLD,VIC
Recruitment hospital [1] 0 0
Site # 0361003 - Wollongong
Recruitment hospital [2] 0 0
Site # 0361006 - Brisbane
Recruitment hospital [3] 0 0
Site # 0361005 - Morayfield
Recruitment hospital [4] 0 0
Site # 0361004 - Southport
Recruitment hospital [5] 0 0
Site # 0361002 - Bayswater
Recruitment hospital [6] 0 0
Site # 0361001 - Camberwell
Recruitment postcode(s) [1] 0 0
2500 - Wollongong
Recruitment postcode(s) [2] 0 0
4006 - Brisbane
Recruitment postcode(s) [3] 0 0
4506 - Morayfield
Recruitment postcode(s) [4] 0 0
4215 - Southport
Recruitment postcode(s) [5] 0 0
3153 - Bayswater
Recruitment postcode(s) [6] 0 0
3124 - Camberwell

Funding & Sponsors
Primary sponsor type
Commercial sector/industry
Name
Sanofi
Address
Country

Ethics approval
Ethics application status

Summary
Brief summary
Trial website
Trial related presentations / publications
Public notes

Contacts
Principal investigator
Name 0 0
Address 0 0
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for public queries
Name 0 0
Sanofi Trial Transparency Email Recommended (Toll free for US and Canada)
Address 0 0
Country 0 0
Phone 0 0
800-633-1610
Fax 0 0
Email 0 0
Contact person for scientific queries

Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
Yes
What data in particular will be shared?
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

Supporting document/s available: Study protocol, Statistical analysis plan (SAP)
When will data be available (start and end dates)?
Available to whom?
Available for what types of analyses?
How or where can data be obtained?


What supporting documents are/will be available?

No Supporting Document Provided


Results publications and other study-related documents

No documents have been uploaded by study researchers.