GlaxoSmithKline

Open enrollment with an early-phase pipeline tilt

According to ClinicalTrials.gov-derived indexes, GlaxoSmithKline sits in the top decile of US sponsors by registered trial count (#17 of 15,742 sponsors by registered trial count).

1,345 total trials 50 currently recruiting 1130 completed early-phase tilt top decile by trial count

GlaxoSmithKline: 1,345 sponsored US clinical trials, 50 recruiting.

GlaxoSmithKline sponsors 1,345 registered US clinical trials on ClinicalTrials.gov, 50 of them currently recruiting, and 1,130 completed. 486 of these trials are in Phase 3-4 (later-stage) and 791 in Phase 1-2 (earlier-stage). The most-studied condition in this pipeline is Pulmonary Disease, Chronic Obstructive, with 30 trials.

Top-decile sponsor footprint

GlaxoSmithKline ranks in the top decile of sponsors by registered trial count (#17 of 15,742 sponsors by registered trial count). Volume at this scale usually reflects a long institutional pipeline, read phase tilt and therapeutic areas below before treating it as current-year activity.

Trial completion reliability score

C 66/100

1,130 of 1,249 decided trials (Completed vs. Terminated on ClinicalTrials.gov) reached their planned completion (90.5%), vs. national p10 68.4% / p90 100% among 1,234 sponsors with at least 10 decided trials. Still-open trials (Recruiting, Active-not-recruiting, Not-yet-recruiting) are excluded since they have not reached an outcome yet.

Open and recent trials

1,345 total, page 3 of 27

COMPLETED Phase 3

A Study in Adolescent and Adult Female Participants to Evaluate Clinical Symptom Improvement and the Safety of Gepotidacin During Treatment of Uncomplicated Urinary Tract Infections (Acute Cystitis)

NCT06597344

COMPLETED Phase 1

Study to Evaluate the Effect of Bepirovirsen on Cardiac Conduction as Assessed by 12-lead Electrocardiogram in Healthy Volunteers

NCT06422767

TERMINATED Phase 2

Long-Term Study (AtDvance) to Evaluate GSK1070806 in Atopic Dermatitis.

NCT06447506

COMPLETED Phase 3

A Study to Assess and Compare Safety and Tolerability of 3 Months Treatment With Salbutamol Administered Via MDI Containing Propellant HFA-152a or HFA-134a in Participants ≥ 18 Years of Age With Asthma

NCT06261957

COMPLETED Phase 2

A Study to Find the Dose and Assess the Immune Response and Safety of a Vaccine Against Influenza in Healthy Younger and Older Adults

NCT06431607

COMPLETED Phase 3

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

NCT06374394

COMPLETED Phase 3

A Study on the Immune Response and Safety of Vaccine Against Respiratory Syncytial Virus (RSV) Given to Adults 18 to 49 Years of Age at Increased Risk for Respiratory Syncytial Virus Disease, Compared to Older Adults 60 Years of Age and Above

NCT06389487

COMPLETED Phase 1

A Study to Find and Confirm the Dose and Assess Safety, Reactogenicity and Immune Response of a Vaccine Against Pandemic H5N1 Influenza Virus in Healthy Younger and Older Adults

NCT06382311

TERMINATED Phase 2

A Study to Evaluate the Efficacy and Safety of GSK3915393 in Participants With Idiopathic Pulmonary Fibrosis (IPF)

NCT06317285

COMPLETED Phase 2

Dose Exploration Study of GSK4532990 in. Participants With NASH or Suspected NASH

NCT06104319

TERMINATED Phase 2

A Dose Finding Study to Investigate the Safety and Effectiveness of GSK1070806 in Adult Participants With Moderate to Severe Atopic Dermatitis

NCT05999799

COMPLETED Phase 1

A Study to Evaluate the Relative Bioavailability of Subcutaneous Bepirovirsen When Delivered From a Vial or Prefilled Syringe Fitted With a Safety Syringe Device in Healthy Adult Participants

NCT06058390

TERMINATED Phase 2

A Study to Evaluate Efficacy and Safety of GSK3858279 in Diabetic Peripheral Neuropathic Pain

NCT05838755

TERMINATED Phase 2

A Dose-Finding Study to Evaluate the Efficacy and Safety of GSK3858279 in Adults With Knee Osteoarthritis (OA) Pain

NCT05838742

TERMINATED Phase 1

A Study to Investigate the Safety, Tolerability, and Pharmacokinetics of Oral GSK4172239D Compared With Placebo in Sickle Cell Disease Participants Aged 18 to 50 Years

NCT05660265

COMPLETED Phase 1

A Safety and Immune Response Study to Evaluate Varying Doses of an mRNA Vaccine Against Coronavirus Disease 2019 (COVID-19) in Healthy Adults

NCT05972993

COMPLETED Phase 1

Safety and Immunogenicity of Different Formulations of Monovalent Influenza A/Astrakhan/3212/2020 Like (H5N8) Virus Vaccine With AS03 Adjuvant System in Medically Stable Adults

NCT05975840

COMPLETED Phase 2

A Study on the Safety and Immune Response of Investigational COVID-19 mRNA Vaccines in Healthy Adults

NCT05960097

COMPLETED Phase 3

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

NCT05966090

COMPLETED Phase 2

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

NCT05921903

COMPLETED Phase 3

Study to Assess the Immune Response, the Safety and the Reactogenicity of Respiratory Syncytial Virus (RSV) Prefusion Protein 3 Older Adult (OA) (RSVPreF3 OA) Investigational Vaccine When co Administered With PCV20 in Older Adults

NCT05879107

COMPLETED Phase 1

A Study to Assess the Safety and Immune Response of a Vaccine Against Influenza in Healthy Younger and Older Adults

NCT05823974

COMPLETED Phase 3

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

NCT05705440

COMPLETED Phase 2

A Study on the Immune Response and Safety of a Combined Measles, Mumps, Rubella, Chickenpox Vaccine Compared to a Marketed Combined Vaccine, Given to Healthy Children 4 to 6 Years of Age

NCT05630846

COMPLETED Phase 1

A Study to Compare the Pharmacokinetics (PK) of Depemokimab When Delivered With a Safety Syringe Device (SSD) or an Autoinjector in Healthy Adult Participants

NCT05602025

COMPLETED Phase 1

Safety and Efficacy of GSK Neisseria Gonorrhoeae GMMA (NgG) Investigational Vaccine When Administered to Healthy Adults 18 to 50 Years of Age

NCT05630859

COMPLETED Phase 1

A Study to Investigate the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamic of GSK1070806 After a Single Intravenous Dose in Healthy Male and Female Caucasian, Chinese and Japanese Participants Aged 18 to 65 Years of Age Inclusive

NCT05590338

COMPLETED Phase 3

A Study on the Immune Response and Safety Elicited by a Vaccine Against Respiratory Syncytial Virus (RSV) When Given Alone and Together With a Vaccine Against Influenza in Adults Aged 65 Years and Above

NCT05559476

COMPLETED Phase 1

A Study on the Immune Response and Safety of an Adjuvanted Human Papillomavirus Vaccine When Given to Healthy Women 16 to 26 Years of Age

NCT05496231

COMPLETED Phase 1

Safety and Immunogenicity Study of a Booster Dose of the Investigational CV0501 mRNA COVID-19 Vaccine in Adults at Least 18 Years Old

NCT05477186

COMPLETED Phase 1

Phase I Study of Linerixibat in Adults With Moderate Hepatic Impairment and Healthy Controls

NCT05393076

COMPLETED Phase 3

Study in Pediatrics With HypEREosinophilic Syndrome (SPHERE)

NCT04965636

COMPLETED Phase 2

A Phase 2 Study to Evaluate the Safety, Tolerability, and Immune Response of AFX3772 Vaccine in Healthy Infants

NCT05412030

COMPLETED Phase 1

Safety, Tolerability, Pharmacokinetic and Microbiological Investigation of GSK3882347 in Female Participants With Urinary Tract Infections

NCT05138822

COMPLETED Phase 3

Efficacy and Safety of Depemokimab (GSK3511294) in Participants With Chronic Rhinosinusitis With Nasal Polyps

NCT05274750

COMPLETED Phase 3

Efficacy and Safety of Depemokimab (GSK3511294) in Participants With Chronic Rhinosinusitis With Nasal Polyps (ANCHOR-2)

NCT05281523

COMPLETED Phase 1

Safety, Reactogenicity, and Immunogenicity Trial of CV2CoV mRNA Vaccine Against SARS-CoV-2 in Seropositive Adult Participants

NCT05260437

COMPLETED Phase 1

A Study on the Reactogenicity, Safety, Immune Response, and Efficacy of a Targeted Immunotherapy Against HSV in Healthy Participants Aged 18-40 Years or in Participants Aged 18-60 Years With Recurrent Genital Herpes

NCT05298254

COMPLETED Phase 1

A Study to Evaluate Pharmacokinetic, Safety, Tolerability and Relative Bioavailability of Gepotidacin in Healthy Adult Male and Female Participants

NCT05271799

COMPLETED Phase 3

An Open-Label Extension Study of GSK3511294 (Depemokimab) in Participants Who Were Previously Enrolled in 206713 (NCT04719832) or 213744 (NCT04718103)

NCT05243680

COMPLETED Phase 2

A Study on the Immune Response and Safety of Various Potencies of an Investigational Chickenpox Vaccine Compared With a Marketed Chickenpox Vaccine, Given to Healthy Children 12 to 15 Months of Age

NCT05084508

COMPLETED Phase 3

A Study to Evaluate the Safety and Immune Response to an Unadjuvanted RSV Maternal Vaccine in Healthy Non-pregnant Females From 9 to 49 Years of Age

NCT05169905

COMPLETED Phase 2

Platform Trial of Novel Regimens Versus Standard of Care (SoC) in Participants With Non-small Cell Lung Cancer (NSCLC) - Sub-study 3

NCT06926673

TERMINATED Phase 2

Pharmacokinetics, Pharmacodynamics, and Safety of Single-dose Sotrovimab in High-risk Pediatric Participants With Mild to Moderate COVID-19

NCT05124210

TERMINATED Phase 2

Screening Protocol for Preliminary Eligibility Determination for Adoptive Cell Therapy Trials

NCT05100316

COMPLETED Phase 1

Linerixibat and Obeticholic Acid Drug Interaction Study in Healthy Adult Participants

NCT05133830

COMPLETED Phase 1

Clinical Effect, Safety and Tolerability of GSK1070806 in Atopic Dermatitis

NCT04975438

COMPLETED Phase 3

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.

NCT05045144

COMPLETED Phase 1

A Study of Safety and Immune Response to Different Doses of a Cytomegalovirus Vaccine in Healthy Adults

NCT05089630

COMPLETED Phase 3

A Study on the Immune Response and Safety of the Shingles Vaccine and the Influenza Vaccine When Either is Given to Healthy Adults at the Same Time or Following a COVID-19 Booster Vaccine

NCT05047770

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Phase Distribution

PhaseTrial count
Phase 1 440
Phase 2 351
Phase 3 377
Phase 4 109

What is open in the GlaxoSmithKline pipeline

50 recruiting of 1,345 indexed (4% open); 1,130 completed (84%).

Phase mix: 486 late (III/IV) vs 791 early (I/II) (early-phase heavy).

Top condition: Pulmonary Disease, Chronic Obstructive (30 trials), 9 others listed.

How open-pipeline share is computed

Recruiting share is recruiting_count divided by trial_count for this sponsor in the public registry export. Status can change between pulls; treat the figure as a research-attention snapshot, not product availability.

GlaxoSmithKline: open-pipeline peers nationwide

Peers matched on 1,345 registered trials and 4% open enrollment, not the therapeutic-area sidebar.

GlaxoSmithKline sits at or above the median trial volume and at or above the median recruiting share among these 9 nationwide peers -- the two do not always move together. Source: ClinicalTrials.gov (2026-08-08 snapshot). 2×2 strategic matrix plotting 9 entities by Total trials (X) and Recruiting share (Y), with a crosshair dividing the plot into four quadrants. Higher volume & more openFocused & more openHigher volume, mostly closedSmaller & mostly closed 05001,0001,500 0%5%10%15% Total trials Recruiting share GlaxoSmithKlineEli Lilly and CompanyUniversity of MichiganNovartis PharmaceuticalsAstraZenecaStryker OrthopaedicsUS Oncology ResearchOtsuka Pharmaceutical Development & CommercializationTeva Branded Pharmaceutical Products R&D
GlaxoSmithKline sits at or above the median trial volume and at or above the median recruiting share among these 9 nationwide peers -- the two do not always move together. Source: ClinicalTrials.gov (2026-08-08 snapshot).

GlaxoSmithKline sits at or above the median trial volume and at or above the median recruiting share among these 9 nationwide peers -- the two do not always move together.

Sponsors near 1,345 trials (± recruiting share)

Sponsors near 4% open enrollment (± trial volume)

What to do with this GlaxoSmithKline page

1,345 registered trials is a research-attention snapshot, not an endorsement of GlaxoSmithKline or any single study.

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

GlaxoSmithKline pipeline card: 1,345 registered trials from official public datasets.Report a data error.