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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT06134648
Other study ID # VBD00003
Secondary ID U1111-1287-8547
Status Recruiting
Phase Phase 1/Phase 2
First received
Last updated
Start date November 1, 2023
Est. completion date March 10, 2026

Study information

Verified date May 2024
Source Sanofi
Contact Trial Transparency email recommended (Toll free for US & Canada)
Phone 800-633-1610
Email Contact-US@sanofi.com
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The purpose of this study is to assess the safety and immunogenicity of a single intramuscular (IM) injection of different doses of an respiratory syncytial virus (RSV) and human metapneumovirus (hMPV) vaccine candidate, in adult participants aged 60 years and older. In addition, the study will evaluate the safety and immunogenicity of a booster vaccination administered 12 months after the primary vaccination in a subset of the study population.


Description:

Study duration per participant: 12 months for the Sentinel and Main Cohorts and 24 months overall for the subset of participants enrolled in the Booster Cohort. Treatment Duration: Sentinel Cohort: 1 IM injection. Participants will be followed for 12 months post-vaccination. Main Cohort: 1 IM injection. Participants will be followed for 12 months post-vaccination. Booster Cohort: 1 IM injection 12 months after the primary vaccination (Main Cohort). Participants will be followed for 12 months after administration of the booster dose.


Recruitment information / eligibility

Status Recruiting
Enrollment 210
Est. completion date March 10, 2026
Est. primary completion date March 10, 2026
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 60 Years and older
Eligibility Inclusion Criteria: - Aged 60 years or older on the day of inclusion - A female participant is eligible to participate if she is not pregnant or breastfeeding and is of non-childbearing potential. - Participants who are determined by medical history, physical examination (if required), and clinical judgment of the investigator to be eligible for inclusion Note: Participants with pre-existing stable disease, defined as disease not requiring significant change in therapy or hospitalization for worsening disease during the 6 weeks before enrollment, can be included. Exclusion Criteria: Participants are excluded from the study if any of the following criteria apply: - Any screening laboratory parameter with laboratory abnormalities deemed clinically significant by the investigator - Known or suspected congenital or acquired immunodeficiency; or receipt of immunosuppressive therapy. Persons living with stable human immunodeficiency virus (HIV) are not excluded - Known systemic hypersensitivity to any of the study intervention components (eg, polyethylene glycol, polysorbate); history of a life-threatening reaction to the study interventions used in the study or to a product containing any of the same substances; any allergic reaction (eg, anaphylaxis) after administration of mRNA coronavirus disease 2019 (COVID-19) vaccine - History of RSV and/or hMPV-associated illness, diagnosed clinically, serologically, or microbiologically in the last 12 months - Previous history of myocarditis, pericarditis, and/or myopericarditis - Screening electrocardiogram that is consistent with possible myocarditis, pericarditis, and/or myopericarditis or, in the opinion of the investigator, demonstrates clinically relevant abnormalities that may affect participant safety or study results - Thrombocytopenia or bleeding disorder, contraindicating intramuscular (IM) injection based on investigator's judgment - Receipt of anticoagulants in the 3 weeks preceding inclusion - Chronic illness that, in the opinion of the investigator, is at a stage where it might interfere with study conduct or completion - Alcohol, prescription drug, or substance abuse that, in the opinion of the investigator, might interfere with the study conduct or completion - History of acute infection symptoms or a positive severe acute respiratory syndrome coronavirus reverse transcription polymerase chain reaction (SARS-CoV-2 RT-PCR) or antigen test in the 10 days prior to the visit. A prospective participant should not be included in the study until the condition has resolved - Receipt of any vaccine other than mRNA vaccine in the 4 weeks preceding any study intervention administration or planned receipt of any vaccine other than mRNA vaccine in the 4 weeks following any study intervention administration - Receipt of any mRNA vaccine in the 60 days preceding any study intervention administration or planned receipt of any mRNA vaccine in the 60 days following any study intervention administration - Previous vaccination against RSV and/or hMPV (with a licensed or investigational vaccine either as a monovalent vaccine or any combination of the antigens) - Receipt of immune globulins, blood, or blood-derived products in the past 3 months - Participation at the time of study enrollment (or in the 4 weeks preceding the first study intervention administration) or planned participation during the present study period in another clinical study investigating a vaccine, drug, medical device, or medical procedure The above information is not intended to contain all considerations relevant to a potential participation in a clinical trial.

Study Design


Related Conditions & MeSH terms


Intervention

Biological:
RSV/hMPV vaccine candidate Dose L
Pharmaceutical form:Suspension for injection-Route of administration:Intramuscular Injection
RSV/hMPV vaccine candidate Dose A
Pharmaceutical form:Suspension for injection-Route of administration:Intramuscular Injection
RSV/hMPV vaccine candidate Dose B
Pharmaceutical form:Suspension for injection-Route of administration:Intramuscular Injection
Placebo
Pharmaceutical form:Suspension for injection-Route of administration:Intramuscular Injection

Locations

Country Name City State
Puerto Rico Investigational Site Number : 6300002 Guayama
Puerto Rico Investigational Site Number : 6300001 San Juan
Puerto Rico Investigational Site Number : 6300003 San Juan
United States AMR Kansas City Site Number : 8400014 Kansas City Missouri
United States AMR Knoxville Site Number : 8400010 Knoxville Tennessee
United States AMR Lexington Site Number : 8400008 Lexington Kentucky
United States Collaborative Neuroscience Research Site Number : 8400017 Los Alamitos California
United States Matrix Clinical Research Site Number : 8400011 Los Angeles California
United States Suncoast Research Associates, LLC Site Number : 8400002 Miami Florida
United States AMR Chicago, Oakbrook Terrace Site Number : 8400019 Oakbrook Terrace Illinois
United States Peninsula Research Associates Site Number : 8400001 Rolling Hills Estates California
United States Velocity Clinical Research, Sioux City Site Number : 8400012 Sioux City Iowa
United States DM Clinical Research - Tomball Site Number : 8400004 Tomball Texas

Sponsors (1)

Lead Sponsor Collaborator
Sanofi Pasteur, a Sanofi Company

Countries where clinical trial is conducted

United States,  Puerto Rico, 

Outcome

Type Measure Description Time frame Safety issue
Primary Presence of unsolicited systemic immediate adverse events (AEs) Number of participants experiencing immediate an immediate unsolicited systemic adverse event Within 30 minutes after primary vaccination
Primary Presence of solicited injection site or systemic reactions Number of participants reporting:
injection site reactions: pain, erythema and swelling
systemic reactions: fever, headache, fatigue, myalgia, arthralgia and chills
Within 7 days after primary vaccination
Primary Presence of unsolicited AEs Number of participants experiencing unsolicited AEs Within 28 days after vaccination
Primary Presence of medically attended adverse events (MAAEs) Number of participants experiencing MAAEs Up to 6 months after primary injection
Primary Presence of serious adverse events (SAEs) Number of participants experiencing SAEs Up to 6 months after primary injection
Primary Presence of adverse events of special interest (AESIs) Number of participants experiencing AESIs Up to 6 months after primary injection
Primary Presence of related SAEs Number of participants experiencing related SAEs Throughout study (approximately 24 months)
Primary Presence of related AESIs Number of participants experiencing related AESIs Throughout study (approximately 24 months)
Primary Presence of fatal SAEs Number of participants experiencing fatal SAEs Throughout study (approximately 24 months)
Primary Presence of out-of-range biological test results Number of participants with biological safety assessment values out of normal range (as per the laboratory performing the test, including shift from baseline values) Within 7 days after vaccination
Primary RSV-A serum neutralizing antibody (nAb) titers at pre-vaccination (D01) and 28 days post- primary vaccination (D29) in Phase IIa (Main/Booster Cohort) RSV-A serum neutralizing antibody (nAb) titers at pre-vaccination (D01) and 28 days post- primary vaccination (D29) Day 1 and Day 29
Primary hMPV serum nAb titers at pre-vaccination (D01), 28 days post-primary vaccination (D29) in Phase IIa (Main/Booster Cohort) hMPV serum nAb titers at pre-vaccination (D01), 28 days post-primary vaccination (D29) Day 1 and Day 29
Secondary RSV-A serum neutralizing antibody (nAb) titers at pre-vaccination (D01) and 28 days post-primary vaccination (D29) RSV-A serum nAb titers at pre-vaccination (D01), 28 days (D29) post-primary vaccination Day 1 and Day 29
Secondary RSV-B serum neutralizing antibody (nAb) titers at pre-vaccination (D01) and 28 days post-primary vaccination (D29) RSV-B serum nAb titers at pre-vaccination (D01), 28 days (D29) post-primary vaccination Day 1 and Day 29
Secondary hMPV serum nAb titers at pre vaccination (D01), 28 days post-primary vaccination (D29) hMPV serum nAb titers at pre-vaccination (D01), 28 days (D29) post-primary vaccination Day 1 and Day 29
Secondary RSV A serum nAb titers at pre-vaccination (D01), 28 days (D29), 3, 6, 9 and 12 months post-primary vaccination RSV A serum nAb titers at pre-vaccination (D01), 28 days (D29), 3, 6, 9 and 12 months post-primary vaccination Day 1, Day 29, Month 3, Month 6, Month 9 and Month 12
Secondary RSV B serum nAb titers at pre-vaccination (D01), 28 days (D29), 3, 6, 9 and 12 months post-primary vaccination RSV B serum nAb titers at pre-vaccination (D01), 28 days (D29), 3, 6, 9 and 12 months post-primary vaccination Day 1, Day 29, Month 3, Month 6, Month 9 and Month 12
Secondary RSV A serum anti-F immunoglobulin G (IgG) antibody (Ab) titers at pre-vaccination (D01), 28 days (D29), 3, 6, 9 and 12 months post-primary vaccination RSV A serum anti-F immunoglobulin G (IgG) antibody (Ab) titers at pre-vaccination (D01), 28 days (D29), 3, 6, 9 and 12 months post-primary vaccination Day 1, Day 29, Month 3, Month 6, Month 9 and Month 12
Secondary hMPV A serum nAb titers at pre vaccination (D01), 28 days (D29), 3, 6, 9 and 12 months post-primary vaccination hMPV A serum nAb titers at pre vaccination (D01), 28 days (D29), 3, 6, 9 and 12 months post-primary vaccination Day 1, Day 29, Month 3, Month 6, Month 9 and Month 12
Secondary hMPV A serum anti-F IgG Ab titers at pre vaccination (D01), 28 days (D29), 3, 6, 9 and 12 months post-primary vaccination hMPV A serum anti-F IgG Ab titers at pre vaccination (D01), 28 days (D29), 3 months (D91), and 6 months (D181) post vaccination Day 1, Day 29, Month 3, Month 6, Month 9 and Month 12
Secondary RSV A serum nAb titers at pre booster vaccination (D01), 28 days (D29), and 3, 6, 9, and 12 months post-booster vaccination RSV A serum nAb titers at pre booster vaccination (D01), 28 days (D29), and 3, 6, 9, and 12 months post-booster vaccination Day 1, Day 29, Month 3, Month 6, Month 9 and Month 12
Secondary RSV B serum nAb titers at pre booster vaccination (D01), 28 days (D29), and 3, 6, 9, and 12 months post-booster vaccination RSV B serum nAb titers at pre booster vaccination (D01), 28 days (D29), and 3, 6, 9, and 12 months post-booster vaccination Day 1, Day 29, Month 3, Month 6, Month 9 and Month 12
Secondary RSV A serum anti-F IgG Ab titers at pre-booster vaccination (D01), 28 days (D29), and 3, 6, 9, and 12 months post- booster vaccination RSV A serum anti-F IgG Ab titers at pre-booster vaccination (D01), 28 days (D29), and 3, 6, 9, and 12 months post- booster vaccination Day 1, Day 29, Month 3, Month 6, Month 9 and Month 12
Secondary hMPV A serum nAb titers at pre booster vaccination (D01), 28 days (D29), and 3, 6, 9, and 12 months post booster vaccination hMPV A serum nAb titers at pre booster vaccination (D01), 28 days (D29), and 3, 6, 9, and 12 months post-booster vaccination Day 1, Day 29, Month 3, Month 6, Month 9 and Month 12
Secondary hMPV serum anti-F IgG Ab titers at pre booster vaccination (D01), 28 days (D29), and 3, 6, 9, and 12 months post booster vaccination hMPV serum anti-F IgG Ab titers at pre booster vaccination (D01), 28 days (D29), and 3, 6, 9, and 12 months post- booster vaccination Day 1, Day 29, Month 3, Month 6, Month 9 and Month 12
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