Independent directory Public ClinicalTrials.gov records United States
Clear filters

These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.

ClinicalTrials.gov public records Last synced Oct 16, 2026, 8:08 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–9 of 9 matching trials from the live ClinicalTrials.gov search.
Conditions
Healthy
Interventions
IVX-A12, Placebo
Biological
Lead sponsor
Icosavax, Inc.
Industry
Eligibility
60 Years to 85 Years
Enrollment
264 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
10
States / cities
Tempe, Arizona • Hollywood, Florida • Stockbridge, Georgia + 7 more
Conditions
Respiratory Syncytial Virus Immunization, Human Metapneumovirus Immunization, Healthy Volunteers
Interventions
RSV+HMPV vaccine, Control Vaccine 3, Control Vaccine 4, Control Vaccine 2, Placebo, Control Vaccine 1
Biological · Other
Lead sponsor
Sanofi
Industry
Eligibility
60 Years and older
Enrollment
2,400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
50
States / cities
Gadsden, Alabama • Vestavia Hills, Alabama • Huntington Beach, California + 43 more
Conditions
Respiratory Syncytial Virus Infection, Healthy Volunteers, Metapneumovirus Infection
Interventions
RSV/hMPV mRNA LNP 1, RSV/hMPV mRNA LNP 2, RSV mRNA LNP 1, hMPV mRNA LNP 1
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
18 Years and older
Enrollment
558 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
9
States / cities
Gardena, California • Hallandale, Florida • Meridian, Idaho + 6 more
Conditions
Respiratory Syncytial Virus Infections+Metapneumovirus
Interventions
RSV/hMPV_V low dose vaccine, RSV/hMPV_V medium dose vaccine, RSV/hMPV_V high dose vaccine, RSV/hMPV_W low dose vaccine, RSV/hMPV_W medium dose vaccine, RSV/hMPV_W high dose vaccine, RSV/hMPV_X low dose vaccine, RSV/hMPV_X medium dose vaccine, RSV/hMPV_X high dose vaccine, hMPV_Y low dose vaccine, hMPV_Y medium dose vaccine, hMPV_Y high dose vaccine, hMPV_Z low dose vaccine, hMPV_Z medium dose vaccine, hMPV_Z high dose vaccine, Control vaccine, Placebo
Biological · Combination Product
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 80 Years
Enrollment
1,456 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2029
U.S. locations
3
States / cities
Stockbridge, Georgia • Lenexa, Kansas • Seattle, Washington
Completed Phase 2 Interventional Accepts healthy volunteers Results available

A Study of IVX-A12 in Adults Participants

NCT06481579
Conditions
Healthy Participants
Interventions
IVX-A12, Licensed RSV Vaccine
Biological
Lead sponsor
Icosavax, Inc.
Industry
Eligibility
60 Years and older
Enrollment
143 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
5
States / cities
Anaheim, California • Rolling Hills Estates, California • Hollywood, Florida + 2 more
Conditions
Respiratory Syncytial Virus, Human Metapneumovirus
Interventions
mRNA-1345, mRNA-1365, Placebo, Nimenrix
Biological · Drug
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
5 Months to 24 Months
Enrollment
186 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2029
U.S. locations
12
States / cities
Los Angeles, California • Washington D.C., District of Columbia • Melrose Park, Illinois + 8 more
Conditions
Human Metapneumovirus Immunization, Respiratory Syncytial Virus Immunization
Interventions
Investigational hMPV/RSV vaccine, Investigational hMPV vaccine (monovalent), Investigational RSV vaccine (monovalent), Licensed RSV Vaccine, Placebo, Investigational RSV+hMPV vaccine
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
60 Years and older
Enrollment
1,530 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
24
States / cities
Phoenix, Arizona • Garden Grove, California • Gardena, California + 20 more
Completed Phase 1 Interventional Accepts healthy volunteers

Safety and Immunogenicity of IVX-A12 in Healthy Older Adults

NCT05664334
Conditions
Healthy
Interventions
IVX-121, IVX-241, Placebo, MF59®
Biological · Other
Lead sponsor
Icosavax, Inc.
Industry
Eligibility
60 Years to 75 Years
Enrollment
140 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
4
States / cities
Hollywood, Florida • Atlanta, Georgia • Omaha, Nebraska + 1 more
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

Study of a Respiratory Syncytial Virus/Human Metapneumovirus Vaccine Candidate

NCT06134648
Conditions
Respiratory Syncytial Virus Infection, Healthy Volunteers, Human Metapneumovirus
Interventions
RSV/hMPV vaccine candidate Dose L, RSV/hMPV vaccine candidate Dose A, RSV/hMPV vaccine candidate Dose B, Placebo
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
60 Years and older
Enrollment
646 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
10
States / cities
Los Alamitos, California • Los Angeles, California • Rolling Hills Estates, California + 7 more