Sanofi Pasteur, a Sanofi Company

153 total trials 3 currently recruiting 132 completed

Sanofi Pasteur, a Sanofi Company sponsors 153 registered US clinical trials on ClinicalTrials.gov, 3 of them currently recruiting, and 132 completed. 71 of these trials are in Phase 3-4 (later-stage) and 67 in Phase 1-2 (earlier-stage). The most-studied condition in this pipeline is Influenza, with 16 trials.

Trial Pipeline

153 total, page 1 of 4

RECRUITING Phase 1

Study to Evaluate Safety, Efficacy and Immunogenicity of Acne mRNA Vaccine in Participants With Mild Acne

NCT07013747

RECRUITING Phase 1

Study to Evaluate Safety, Efficacy and Immunogenicity of Acne mRNA Vaccine in Adults With Moderate to Severe Acne

NCT06316297

RECRUITING

Observational, Passive Surveillance Program to Collect Information on Women and Their Offspring Exposed to MenQuadfi® During Pregnancy, in United States (US)

NCT04843111

ACTIVE NOT RECRUITING Phase 3

Study of the Safety and Immunogenicity of Catch-up Vaccination With a 21-valent Pneumococcal Conjugate Vaccine (PCV21) in Healthy Infants, Toddlers, Children, and Adolescents

NCT06838000

ACTIVE NOT RECRUITING Phase 1

A Study on the Safety and Immunogenicity of Hexavalent Influenza mRNA Vaccine in Adult Participants 50 Years of Age and Older

NCT06744205

ACTIVE NOT RECRUITING Phase 3

Study of a 4-Dose Regimen of a 21-valent Pneumococcal Conjugate Vaccine in Healthy Infants From Approximately 2 Months of Age

NCT06736041

ACTIVE NOT RECRUITING Phase 1

Study to Evaluate Safety and Immunogenicity of a Pandemic Flu H5 mRNA Vaccine in Healthy Adults Aged 18 Years and Older

NCT06727058

ACTIVE NOT RECRUITING Phase 1

Study of a Human Metapneumovirus/Respiratory Syncytial Virus mRNA Vaccine Candidate Encapsulated in a Lipid Nanoparticle-based Formulation in Adults Aged 60 Years and Older

NCT06686654

ACTIVE NOT RECRUITING Phase 2

Study on an Investigational Yellow Fever Vaccine Compared With YF-VAX in Adults in the USA

NCT04942210

COMPLETED Phase 3

Study to Evaluate Immunogenicity and Safety of a High-Dose Influenza Vaccine in Adults 50 Through 64 Years of Age

NCT06641180

COMPLETED NA

Study on Biomarkers of Periodontitis and Type 2 Diabetes Mellitus in Males and Females 30 - 70 Years of Age

NCT06582056

TERMINATED Phase 3

Co-administration Study of an Investigational Live-Attenuated Respiratory Syncytial Virus Vaccine in Infants and Toddlers

NCT06397768

COMPLETED Phase 1

A Study to Investigate the Safety and Immunogenicity of the Quadrivalent Influenza mRNA Vaccines in Adults Aged 18 Years and Above

NCT06361875

COMPLETED

BEYFORTUS™ (Nirsevimab) Effectiveness Against Medically-Attended RSV Events in Infants (BEAR Study)

NCT06325332

TERMINATED Phase 3

Efficacy, Immunogenicity, and Safety Study of a Respiratory Syncytial Virus Vaccine in Infants and Toddlers

NCT06252285

COMPLETED Phase 1

Study of the Safety and Immune Response of an Investigational mRNA Vaccine for the Prevention of Respiratory Syncytial Virus and/or Human Metapneumovirus in Participants Aged 18 to 49 Years and 60 Years and Older

NCT06237296

COMPLETED Phase 1

Study of a Respiratory Syncytial Virus/Human Metapneumovirus Vaccine Candidate

NCT06134648

COMPLETED Phase 1

Study of an Investigational Pentavalent Meningococcal ABCYW Vaccine in Adults and Adolescents

NCT06128733

COMPLETED

Prospective Surveillance of Respiratory Syncytial Virus Disease in Infants and Toddlers

NCT05964582

COMPLETED Phase 1

Study on a Live-attenuated Respiratory Syncytial Virus Vaccine for Assessment of Safety, Transmissibility, and Genetic Stability of the Vaccine Virus Among Close Contacts in Infants and Toddlers 6 to < 24 Months of Age in Puerto Rico (USA)

NCT05687279

COMPLETED Phase 1

Safety and Immunogenicity of Quadrivalent Influenza mRNA Vaccine MRT5413 in Adult Participants18 Years of Age and Older

NCT05650554

COMPLETED Phase 1

Safety and Immunogenicity of Quadrivalent Influenza mRNA Vaccine MRT5410 in Adult Participants 18 Years of Age and Older

NCT05624606

COMPLETED Phase 1

Study of a Respiratory Syncytial Virus Candidate Encapsulated in a Lipid Nanoparticle Based Formulation in Adults Aged 18 to 50 Years and 60 Years and Older

NCT05639894

TERMINATED Phase 3

Study With Quadrivalent Recombinant Influenza Vaccine (RIV4) Compared With Egg-Based Quadrivalent Influenza Vaccine (IIV4) in Participants Aged 3 to 8 Years

NCT05513391

COMPLETED Phase 1

Study on Two Adjuvanted Dose Levels of Panblok H7+MF59 Compared for Immunogenicity and Safety With an Unadjuvanted Dose of Panblok H7 in Participants 18 Years of Age and Older

NCT05608005

COMPLETED Phase 3

Study With Quadrivalent Recombinant Influenza Vaccine (RIV4) in Participants 9 Through 49 Years of Age.

NCT05513053

COMPLETED Phase 1

Safety and Immunogenicity of Quadrivalent Influenza mRNA Vaccine MRT5407 in Adult Participants18 Years of Age and Older

NCT05553301

COMPLETED Phase 1

Study to Assess the Safety and Immunogenicity of Monovalent mRNA NA Vaccine in Adult Participants 18 Years of Age and Older

NCT05426174

COMPLETED Phase 1

Safety and Immunogenicity of a Monovalent mRNA Vaccine Encoding Influenza Hemagglutinin in Adult Participants 18 Years of Age and Older

NCT06118151

COMPLETED Phase 4

Annual Study for Collection of Serum Samples in Children and Older Adults Receiving the 2021-2022 Formulations of Fluzone Quadrivalent Vaccine and Fluzone High-Dose Quadrivalent Vaccine, Respectively

NCT05050318

COMPLETED Phase 2

Study of a Quadrivalent High-Dose Influenza Vaccine and a Moderna COVID-19 Vaccine Administered Either Concomitantly or Singly in Participants 65 Years of Age and Older Previously Vaccinated With a 2-dose Schedule of Moderna COVID-19 Vaccine

NCT04969276

TERMINATED Phase 3

Study of Monovalent and Bivalent Recombinant Protein Vaccines Against COVID-19 in Adults 18 Years of Age and Older

NCT04904549

TERMINATED Phase 1

Study of a Novel Multicomponent Meningococcal Group B Vaccine When Given Alone or With Other Licensed Vaccines in Adults, Adolescents, Toddlers and Infants

NCT04825223

TERMINATED Phase 1

Study of mRNA Vaccine Formulation Against COVID-19 in Healthy Adults 18 Years of Age and Older

NCT04798027

COMPLETED Phase 2

Study of Recombinant Protein Vaccines With Adjuvant as a Primary Series and as a Booster Dose Against COVID-19 in Adults 18 Years of Age and Older

NCT04762680

COMPLETED Phase 1

Study of an Live-Attenuated Respiratory Syncytial Virus Vaccine in Infants and Toddlers

NCT04491877

COMPLETED Phase 4

Annual Study for Collection of Serum Samples in Children and Older Adults Receiving the 2020-2021 Formulations of Fluzone Quadrivalent Vaccine and Fluzone High-Dose Quadrivalent Vaccine, Respectively

NCT04551677

TERMINATED Phase 3

Study on a High-Dose Quadrivalent Influenza Vaccine Compared With Standard-Dose Quadrivalent Influenza Vaccine in Children 6 Months Through 35 Months of Age

NCT04544267

COMPLETED Phase 1

Study of Recombinant Protein Vaccine Formulations Against COVID-19 in Healthy Adults 18 Years of Age and Older

NCT04537208

COMPLETED Phase 1

Study of Recombinant Influenza Vaccine Containing Different H3 Antigens Without or With Adjuvant in Healthy Adult Subjects

NCT04451954

COMPLETED Phase 2

Study of a Pneumococcal Conjugate Vaccine When Administered Concomitantly With Routine Pediatric Vaccines in Healthy Toddlers and Infants

NCT04398706

TERMINATED Phase 1

Safety and Efficacy of 4 Investigational HSV 2 Vaccines in Adults With Recurrent Genital Herpes Caused by HSV 2

NCT04222985

COMPLETED Phase 1

Dose-ranging Study of an Investigational Yellow Fever Candidate Vaccine in Adults

NCT04142086

COMPLETED Phase 1

Safety and Immunogenicity of Quadrivalent Recombinant Influenza Vaccine Formulations Containing Different H3 Hemagglutinin Antigens in Healthy Adult Subjects 18 to 30 Years of Age

NCT04144179

COMPLETED Phase 3

Study to Assess the Safety and Immunogenicity of a Single Dose of a Quadrivalent Meningococcal (MenACYW) Conjugate Vaccine in Older Adults Who Received a Primary Vaccination (3 or More Years Earlier) in Study MET49

NCT04142242

COMPLETED Phase 4

Collection of Serum Samples From Children and Older Adults Receiving the 2019-2020 Formulations of Fluzone® Quadrivalent and Fluzone® High-Dose Influenza Vaccines, Respectively

NCT04109222

COMPLETED Phase 3

Study to Evaluate the Immune Response After a Booster Dose of a Quadrivalent Meningococcal (MenACYW) Conjugate Vaccine When Administered Alone or Concomitantly With a Licensed Meningococcal Serogroup B Vaccine, in Participants Who Received Primary Quadrivalent Meningococcal Conjugate Vaccine (MCV4)

NCT04084769

COMPLETED Phase 1

Safety and Immunogenicity of a Pneumococcal Conjugate Vaccine Candidate in Healthy Adults (19-49 Years)

NCT06698198

COMPLETED Phase 2

Safety and Immunogenicity of Different Dosages of High-Dose Quadrivalent Influenza Vaccine in Children 6 Months to 17 Years of Age

NCT03698279

COMPLETED Phase 3

Immunogenicity and Safety Study of a Quadrivalent Meningococcal Conjugate Vaccine Administered Concomitantly With Routine Pediatric Vaccines in Healthy Infants and Toddlers

NCT03691610

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Phase Distribution

PhaseTrial count
Phase 1 31
Phase 2 36
Phase 3 33
Phase 4 38

What the Pipeline for Sanofi Pasteur, a Sanofi Company Shows

According to the ClinicalTrials.gov registry, Sanofi Pasteur, a Sanofi Company is linked to 153 US clinical trials across every stage of research activity. Of those, 3 studies are currently recruiting, about 2% of the sponsor's indexed portfolio, and 132 are already marked complete, representing roughly 86% of the total.

The phase mix for Sanofi Pasteur, a Sanofi Company reports 71 late-stage studies (Phase 3 and Phase 4 combined) and 67 earlier-phase studies (Phase 1 and Phase 2).

The top therapeutic focus area indexed for Sanofi Pasteur, a Sanofi Company is Influenza with 16 linked trials, and 9 other condition areas appear in the top list above.

How to read these pipeline numbers

Recruiting share is one of the more practical signals here: it reflects how much of a sponsor's research is presently open to new participants, while the completed share indicates the depth of finished work that has already contributed registry results. Both counts come directly from the public ClinicalTrials.gov dataset and are refreshed on the registry side; this page mirrors the latest data pull without altering it.

A portfolio weighted toward Phase 3 usually reflects an organization advancing candidates toward regulatory review, where the research centers on comparative efficacy and broader safety across larger populations. A heavier Phase 1 and Phase 2 tilt generally indicates exploratory work, safety, dosing, and early signal detection, and is common among research-forward sponsors that seed many early programs. Phase 4 entries, when present, track interventions already in real-world use and typically focus on long-term safety, effectiveness across subgroups, or formulation comparisons.

That distribution is a quick read of where the organization concentrates its research attention; it does not imply product availability, market share, or any clinical endorsement. All numbers on this page come from ClinicalTrials.gov maintained by the National Library of Medicine, and counts can shift as new studies are registered or existing ones update their status. This information is provided for reference and educational purposes only, not as medical, investment, or regulatory advice, verify current details directly with ClinicalTrials.gov before relying on any figure here.

Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainTrial

Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This page aggregates every registered trial from this sponsor, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.