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 6 of 27

COMPLETED NA

A Study to Investigate a Method to Measure Food Occlusion by Denture Adhesives in Denture Wearers

NCT03345108

COMPLETED Phase 3

In Situ Erosion Study to Investigate the Effectiveness of an Experimental Toothpaste

NCT03296072

COMPLETED Phase 3

A Multi-center, Open-label Extension, Safety Study of Mepolizumab in Subjects With Hypereosinophilic Syndrome (HES) From Study 200622

NCT03306043

COMPLETED Phase 3

Safety and Efficacy Study of Fluticasone Furoate/Vilanterol (FF/VI) Fixed Dose Combination (FDC) Compared to FF Alone in Subjects With Asthma

NCT03248128

COMPLETED

Pediatric Ease of Use ELLIPTA Items

NCT03315572

TERMINATED Phase 2

A Pilot Study of Danirixin for Disease Progression in Chronic Obstructive Pulmonary Disease (COPD)

NCT03170232

COMPLETED Phase 2

A Study to Investigate the Stain and Plaque Removal Capability of Two Experimental Potassium Nitrate Dentifrices

NCT03267511

COMPLETED Phase 4

Comparative Study of ELLIPTA Dry Powder Inhaler (DPI) Versus DISKUS DPI Used With HandiHaler DPI in Subjects With Chronic Obstructive Pulmonary Disease (COPD)

NCT03227445

COMPLETED Phase 2

Efficacy and Safety Study of GSK3772847 in Subjects With Moderately Severe Asthma

NCT03207243

COMPLETED Phase 3

This Study Will Evaluate the Immunogenicity, Reactogenicity and Safety of the Routine Infant Vaccines Pediarix®, Hiberix® and Prevenar 13® When Co-administered With GlaxoSmithKline (GSK) Biologicals' Liquid Human Rotavirus Vaccine (HRV) as Compared to GSK's Licensed Lyophilized Vaccine

NCT03207750

COMPLETED Phase 1

A Study to Evaluate the Reactogenicity, Safety and Immunogenicity of GlaxoSmithKline (GSK) Biologicals' Investigational Supra-seasonal Universal Influenza Vaccines - Inactivated (SUIVs) (GSK3816302A) in Healthy Adults Aged 18 to 39 Years

NCT03275389

TERMINATED Phase 1

Letetresgene Autoleucel Engineered T Cells Alone and in Combination With Pembrolizumab in NY-ESO-1 Positive Multiple Myeloma

NCT03168438

COMPLETED

Study of Subjects With Diabetic Foot Ulcer (DFU)

NCT03153007

COMPLETED Phase 2

A Study to Assess Efficacy of an Experimental Oral Rinse in Providing Long Term Relief From Dentinal Hypersensitivity

NCT03238352

COMPLETED Phase 1

A Two-part Study to Compare a Tablet and Capsule Formulation of GSK2838232 With and Without Food, and to Assess the Safety and Drug Levels of Repeated Once-daily Doses of GSK2838232 Without Ritonavir

NCT03234036

COMPLETED

Qualitative Analysis of Subject Experience of Nasal Polyps

NCT03221192

TERMINATED Phase 1

Safety, Clinical Activity, Pharmacokinetics (PK) and Pharmacodynamics Study of GSK2879552, Alone or With Azacitidine, in Subjects With High Risk Myelodysplastic Syndromes (MDS)

NCT02929498

COMPLETED Phase 2

Anemia Study in Chronic Kidney Disease (CKD): Erythropoiesis Via a Novel Prolyl Hydroxylase Inhibitor (PHI) Daprodustat-Blood Pressure (ASCEND-BP)

NCT03029247

COMPLETED Phase 1

Daprodustat Hepatic Impairment Study

NCT03223337

TERMINATED Phase 1

Dose Escalation and Dose Expansion Study of GSK525762 in Combination With Androgen Deprivation Therapy in Participants With Castrate-resistant Prostate Cancer

NCT03150056

COMPLETED Phase 4

Effects of a Orally Inhaled Fluticasone Furoate on Growth Velocity in Prepubertal, Paediatric Subjects With Asthma Over a Year

NCT02889809

TERMINATED Phase 2

Multiple Treatment Session Study to Assess GSK2398852 Administered Following and Along With GSK2315698

NCT03044353

COMPLETED Phase 4

A 24-week Study to Compare Umeclidinium/Vilanterol (UMEC/VI), UMEC and Salmeterol in Subjects With Chronic Obstructive Pulmonary Disease (COPD)

NCT03034915

COMPLETED Phase 2

Proof of Mechanism Study of GSK2330811 in Diffuse Cutaneous Systemic Sclerosis

NCT03041025

COMPLETED Phase 3

Effect of Mepolizumab in Severe Bilateral Nasal Polyps

NCT03085797

COMPLETED Phase 2

Efficacy, Immunogenicity and Safety Study of GSK Biologicals' Candidate Malaria Vaccine Evaluating Different Dose Schedules in a Sporozoite Challenge Model in Healthy Malaria-naïve Adults

NCT03162614

COMPLETED Phase 3

Anemia Studies in Chronic Kidney Disease (CKD): Erythropoiesis Via a Novel Prolyl Hydroxylase Inhibitor (PHI) Daprodustat-in Incident Dialysis (ASCEND-ID)

NCT03029208

COMPLETED Phase 3

Study of Mepolizumab Autoinjector in Asthmatics

NCT03099096

COMPLETED Phase 2

Danirixin Dose Ranging Study in Participants With Chronic Obstructive Pulmonary Disease (COPD)

NCT03034967

TERMINATED Phase 2

Efficacy and Safety Study of Mepolizumab in Subjects With Moderate to Severe Atopic Dermatitis

NCT03055195

COMPLETED Phase 2

Safety and Efficacy Study of GSK2838232 in Human Immunodeficiency Virus (HIV)-1 Infected Adults

NCT03045861

COMPLETED NA

A Bite Force Study Comparing Two New Test Adhesives With Currently Marketed Denture Adhesive

NCT02937870

COMPLETED Phase 3

Efficacy and Safety Study of Mepolizumab in Subjects With Severe Hypereosinophilic Syndrome (HES)

NCT02836496

COMPLETED NA

A Clinical Bite Force Study of Two Marketed Adhesives Against no Adhesive

NCT03037307

COMPLETED Phase 3

Study of Mepolizumab Safety Syringe in Asthmatics

NCT03021304

COMPLETED Phase 2

Phase IIb Study of Umeclidinium (UMEC) Bromide Versus Placebo in Subjects With Asthma

NCT03012061

TERMINATED Phase 2

Study to Evaluate the Efficacy and Safety of Danirixin Co-administered With Oseltamivir in the Treatment of Adults Hospitalized With Influenza

NCT02927431

COMPLETED Phase 3

Study to Evaluate the Impact of Reactogenicity on Quality of Life (QoL), After Administration of GlaxoSmithKline (GSK) Biologicals' Candidate Herpes Zoster Subunit (HZ/su) Vaccine (GSK1437173A) in Adults ≥ 50 Years of Age

NCT02979639

COMPLETED Phase 1

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

NCT02927873

COMPLETED Phase 2

Dose Response Study of GSK2330672 for the Treatment of Pruritus in Participants With Primary Biliary Cholangitis

NCT02966834

COMPLETED Phase 3

A Study to Compare the Pharmacokinetics of Mepolizumab as a Liquid Drug in a Safety Syringe or an Autoinjector Versus Lyophilised Drug

NCT03014674

COMPLETED Phase 2

To Evaluate the Efficacy and Safety of 1146A Nasal Spray in Adult Participants With Symptoms of Common Cold

NCT03005067

COMPLETED Phase 3

Study to Assess the Safety and Immunogenicity of a Single Dose of GlaxoSmithKline's (GSK) Meningococcal MenACWY-CRM Vaccine (Menveo), Administered to Subjects 15 Through 55 Years of Age, Approximately 4-6 Years After Primary ACWY Vaccination

NCT02986854

COMPLETED Phase 2

Letetresgene Autoleucel Engineered T Cells in NY-ESO-1 Positive Participants With Advanced Myxoid/ Round Cell Liposarcoma

NCT02992743

COMPLETED NA

To Evaluate the Efficacy of an Experimental Dissolvable Strip in Rapidly Relieving Dentinal Hypersensitivity (DH)

NCT02937623

COMPLETED Phase 2

GSK2982772 Study in Subjects With Ulcerative Colitis

NCT02903966

COMPLETED Phase 3

Evaluation of Immunogenicity and Safety of Two Formulations of GSK Biologicals' Human Rotavirus (HRV) Vaccine (444563), in Healthy Infants Starting at Age 6-12 Weeks

NCT02914184

COMPLETED Phase 3

A Phase III Parallel Group Study, Comparing the Efficacy, Safety and Tolerability of the Fixed Dose Combination (FDC) of Fluticasone Furoate+Umeclidinium Bromide+Vilanterol (FF/UMEC/VI) With the FDC of FF/VI in Subjects With Inadequately Controlled Asthma

NCT02924688

COMPLETED NA

Oral and Dermal Tolerability Clinical Study of an Experimental Denture Wipe

NCT03478644

TERMINATED Phase 4

Extension to Study 200952 to Evaluate the Long-term Safety, Tolerability and Pharmacodynamics of Albiglutide Liquid Drug Product in Type 2 Diabetes Mellitus Subjects

NCT02750930

← Previous Page 6 of 27 Next →

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.