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ClinicalTrials.gov 4 recruiting now full pipeline

Respiratory Syncytial Virus Infections: full-pipeline trial registry

4 of 22 indexed Respiratory Syncytial Virus Infections trials are currently recruiting.

Corpus placement: #756 of 28,707 conditions by registered trial count.

22 US clinical trials · 4 currently recruiting · #756 of 28,707 conditions by registered trial count

Respiratory Syncytial Virus Infections: 22 US clinical trials tracked, 4 recruiting.

Respiratory Syncytial Virus Infections is the subject of 22 registered US clinical trials on ClinicalTrials.gov, 4 of them currently open to new participants. 9 are in Phase 3-4 (later-stage) and 12 in Phase 1-2 (earlier-stage). The most active sponsor is GlaxoSmithKline, running 11 of these trials.

Enrollment posture brief

Registry condition respiratory-syncytial-virus-infections

OPEN 4 | RECR 18% | LATE 9 | EARLY 12 | RANK #756 | SPON 11

Nearest open-share peer: Adenocarcinoma of the Pancreas (18% recruiting · 11 trials)

Advanced Melanoma63.6%Acute Myeloid Leukemia Arisi18.2%Respiratory Syncytial Vi (th…18%Adenocarcinoma of the Prosta0%Adult Acute Myeloid Leukemia0%
Open-enrollment share among volume-matched conditions near Respiratory Syncytial Virus Infections

Respiratory Syncytial Virus Infections lists 4 open slots (18% of 22 indexed trials). Peers are matched on registered volume, not therapeutic-area browse lists. How peer matching works →

Key findings

What ClinicalTrials.gov does not surface for Respiratory Syncytial Virus Infections on its own pages , computed from the registry mirror as of 2026-08-08. Each line carries its own denominator so it can be quoted as it stands.

  1. Respiratory Syncytial Virus Infections is recruiting below its size-band peers.

    4 of 22 indexed trials (18.2%) are open to enrollment, against a 39.7% average across 762 conditions with 20-99 trials. The peer set uses the same ClinicalTrials.gov-derived counts as this page.

  2. One sponsor concentrates Respiratory Syncytial Virus Infections research.

    GlaxoSmithKline accounts for 11 of 22 trials (50%). 9 distinct sponsors appear on at least one study for this condition label.

  3. Typical Respiratory Syncytial Virus Infections enrolment sits around 300 participants.

    Median target enrolment is 300 among the 22 trials that report a genuine target (sentinel values excluded). 5 of those (22.7%) plan for fewer than 100 participants.

  4. Respiratory Syncytial Virus Infections research is mostly interventional.

    21 interventional and 1 observational studies make up this index (95.5% interventional). Study type is sponsor-reported on ClinicalTrials.gov.

Phase 18Phase 24Phase 39

Open and recent trials

22 total, page 1 of 1

RECRUITING Phase 3 370 participants

Azithromycin Treatment for Respiratory Syncytial Virus-induced Respiratory Failure in Children

University of Alabama at Birmingham

NCT05026749

RECRUITING Phase 2 192 participants

A Study of S-337395 in Symptomatic Nonhospitalized Adults With Respiratory Syncytial Virus (RSV) Who Are at High Risk of Progression to Severe Disease

Shionogi

NCT07214571

RECRUITING Phase 2 184 participants

A Study Evaluating Persistence of the Immune Response of the Adjuvanted Respiratory Syncytial Virus (RSV) Vaccine and the Safety and Immune Response Following Revaccination in Adults 18 Years of Age and Above Who Received Lung or Kidney Transplant

GlaxoSmithKline

NCT07092865

RECRUITING Phase 1 137 participants

A Study of BLB-201 RSV Vaccine in Infants and Children

Blue Lake Biotechnology

NCT05655182

ACTIVE NOT RECRUITING Phase 3 10,212 participants

An Extension and Crossover Vaccination Study on the Immune Response and Safety of a Vaccine Against Respiratory Syncytial Virus Given to Adults 60 Years of Age and Above Who Participated in RSV OA=ADJ-006 Study

GlaxoSmithKline

NCT06534892

ACTIVE NOT RECRUITING Phase 3 1,720 participants

Immunogenicity, Safety, Reactogenicity and Persistence of an Investigational Respiratory Syncytial Virus (RSV) Vaccine in Adults Aged 60 Years and Above

GlaxoSmithKline

NCT04732871

ACTIVE NOT RECRUITING Phase 1 213 participants

A Study on the Safety and Immune Response to an mRNA-based RSV Investigational Vaccine in Healthy Adults Aged 18-45 Years

GlaxoSmithKline

NCT06573281

ACTIVE NOT RECRUITING Phase 1 51 participants

Safety and Immunogenicity of CodaVax-RSV in Seropositive and Seronegative Children

Codagenix

NCT04919109

COMPLETED Phase 3 3,855 participants

A Follow-up Study to Describe the Safety of Study Participants Who Received RSVPreF3 Maternal Vaccination (Any Dose) or Controls From Previous RSV MAT Studies During Any Pregnancy Conceived Post Vaccination/Control

GlaxoSmithKline

NCT05705440

COMPLETED Phase 3 1,586 participants

A Phase III Study to Assess the Lot-to-lot Consistency of GSK's Investigational RSV Maternal Vaccine and the Immune Response and Safety of RSV Maternal Vaccine When Given Alone or Co-administered With GSK's Influenza D-QIV Vaccine in Healthy Non-pregnant Women.

GlaxoSmithKline

NCT05045144

COMPLETED Phase 3 1,177 participants

Study to Evaluate the Efficacy and Safety of Suptavumab (REGN2222) for the Prevention of Medically Attended RSV (Respiratory Syncytial Virus) Infection in Preterm Infants

Regeneron Pharmaceuticals

NCT02325791

COMPLETED Phase 3 841 participants

A Study on the Immune Response and Safety of a Vaccine Against Respiratory Syncytial Virus (RSV) When Given Alone and Together With a COVID-19 mRNA Vaccine in Adults Aged 50 Years and Above

GlaxoSmithKline

NCT06374394

COMPLETED Phase 3 770 participants

A Study of 3 Lots of an Investigational Vaccine Against Respiratory Syncytial Virus (RSV) in Adults Aged 60 Years and Above

GlaxoSmithKline

NCT05059301

COMPLETED Phase 3 530 participants

A Study on Safety and Immune Response of Investigational RSV OA Vaccine in Combination With Herpes Zoster Vaccine in Healthy Adults

GlaxoSmithKline

NCT05966090

COMPLETED Phase 2 386 participants

A Study on the Immune Response and Safety of an RSV Vaccine When Given to Adults 18 Years of Age and Above Who Received Lung or Kidney Transplant and Are at an Increased Risk of Respiratory Syncytial Virus Lower Respiratory Tract Disease and Compared to Healthy Adults 50 Years of Age and Above

GlaxoSmithKline

NCT05921903

COMPLETED 300 participants

Association Between Cytokines and Severity of Respiratory Syncytial Virus (RSV)-Induced Illness in the Elderly

West Penn Allegheny Health System

NCT00609635

COMPLETED Phase 1 150 participants

Safety Study of Respiratory Syncytial Virus (RSV)-Fusion (F) Protein Particle Vaccine

Novavax

NCT01290419

COMPLETED Phase 1 107 participants

A Study to Evaluate Safety, Reactogenicity and Immunogenicity of GSK Biologicals' RSV Investigational Vaccine Based on Viral Proteins Encoded by Chimpanzee-derived Adenovector (ChAd155-RSV) (GSK3389245A) in RSV-seropositive Infants

GlaxoSmithKline

NCT02927873

COMPLETED Phase 2 50 participants

RSV F Vaccine Maternal Immunization Study in Healthy Third-trimester Pregnant Women.

Novavax

NCT02247726

COMPLETED Phase 1 50 participants

Evaluating the Safety and Immune Response to a Single Dose of a Respiratory Syncytial Virus (RSV) Vaccine in RSV-Seronegative Infants and Children

National Institute of Allergy and Infectious Diseases (NIAID)

NCT01852266

COMPLETED Phase 1 33 participants

Evaluating the Infectivity, Safety and Immunogenicity of a Recombinant Live-Attenuated Respiratory Syncytial Virus Vaccine in RSV-Seronegative Infants 6 to 24 Months of Age

National Institute of Allergy and Infectious Diseases (NIAID)

NCT02794870

COMPLETED Phase 1 3 participants

Safety and Immune Response to a Live-Attenuated Respiratory Syncytial Virus (RSV) Vaccine in RSV-Seronegative Infants and Children

National Institute of Allergy and Infectious Diseases (NIAID)

NCT02040831

Phase Distribution

PhaseTrial count
Phase 1 8
Phase 2 4
Phase 3 9

Named interventions

Most-linked intervention names on Respiratory Syncytial Virus Infections records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.

RSVPreF3 OA investigational vaccine Biological
4 trials
Placebo Drug
3 trials
Placebo Vaccine Biological
2 trials
Placebo Biological
2 trials
COVID-19 mRNA vaccine Biological
1 trials
Suptavumab 30 mg/kg - 2 Doses Drug
1 trials
Suptavumab 30 mg/kg- 1 Dose Drug
1 trials
Placebo Matched to Suptavumab Drug
1 trials

US sites by state

Facility locations filed on Respiratory Syncytial Virus Infections trials. A trial with sites in several states counts in each.

California 11 trials
Texas 10 trials
Nebraska 9 trials
Florida 8 trials
New York 7 trials
Georgia 7 trials
Alabama 6 trials
Pennsylvania 5 trials

Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.

What to do with this Respiratory Syncytial Virus Infections page

22 registered trials, 4 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.

  • 4 Respiratory Syncytial Virus Infections trials are currently recruiting, check eligibility criteria before contacting a site. Browse recruiting trials
  • GlaxoSmithKline sponsors the most Respiratory Syncytial Virus Infections trials on record, review their full trial history before evaluating a specific study. See GlaxoSmithKline's trials
  • Bring the specific trial ID (NCT number) to your own doctor before enrolling, this page is a directory, not medical guidance. Read the trial-finding guide

Trial and recruiting counts reflect ClinicalTrials.gov registry status as of the data vintage above; individual trial eligibility and enrollment status can change.

Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This Respiratory Syncytial Virus Infections condition card totals 22 registered trials; most-linked intervention RSVPreF3 OA investigational vaccine; top US site state California. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.