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 9 of 27

COMPLETED Phase 2

A Study Investigating Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of GSK2330672 Administered With Metformin to Type 2 Diabetes Patients

NCT02202161

TERMINATED Phase 1

A Phase I Dose Escalation Study of GSK2879552 in Subjects With Acute Myeloid Leukemia (AML)

NCT02177812

COMPLETED Phase 3

Safety and Immunogenicity Study of GlaxoSmithKline (GSK) Biologicals' Measles, Mumps and Rubella (MMR) Vaccine (209762) Compared to Merck & Co., Inc.'s MMR Vaccine in Healthy Children 12 to 15 Months of Age

NCT02184572

COMPLETED Phase 2

To Evaluate Efficacy and Tolerability of Sodium Bicarbonate Toothpaste and Its Effect on Opportunistic or Resistant Organisms

NCT02207400

COMPLETED Phase 2

Trial to Assess Immunogenicity and Safety of GlaxoSmithKline (GSK) Biologicals' Meningococcal ABCWY Vaccine as Compared to Meningococcal B Vaccine in Adolescents

NCT02212457

COMPLETED Phase 3

A Study to Evaluate the Safety and Immunogenicity of GlaxoSmithKline (GSK) Biologicals' Quadrivalent Influenza Candidate Vaccine (GSK2321138A) Manufactured Using a New Process in Adults and Children

NCT02207413

COMPLETED Phase 3

Consistency, Immunogenicity and Safety Study of GlaxoSmithKline (GSK) Biologicals' Herpes Zoster (HZ) Vaccine GSK1437173A in Adults ≥ 50 Years of Age

NCT02075515

COMPLETED Phase 2

To Evaluate the Efficacy and Tolerability of Sodium Bicarbonate Toothpaste

NCT02207907

COMPLETED Phase 1

A Study to Evaluate the Pharmacokinetics of a Single Dose of Tafenoquine Co-administered With Either Artemether + Lumefantrine or Dihydroartemisinin + Piperaquine Tetraphosphate

NCT02184637

COMPLETED Phase 1

Dose Escalation Study to Investigate the Safety, Pharmacokinetics, Pharmacodynamics, Immunogenicity and Clinical Activity of GSK2857916

NCT02064387

COMPLETED Phase 1

Comparative Bioavailability of Two Fixed Dose Combination (FDC) Formulations of Dutasteride and Tamsulosin Hydrochloride Relative to Co-administration of Dutasteride With Tamsulosin Hydrochloride in Healthy Male Subjects Under Fed and Fasted States

NCT02184585

COMPLETED Phase 2

Evaluation of Umeclidinium Bromide in Combination With Fluticasone Furoate in COPD Subjects With an Asthmatic Component

NCT02164539

COMPLETED Phase 3

Immunogenicity and Safety of GSK Biologicals' Combined Measles-mumps-rubella Vaccine in Volunteers, Seven Years of Age and Older

NCT02058563

COMPLETED Phase 2

A Phase II, Repeat Dose, Proof of Mechanism Study of Losmapimod to Reduce Proteinuria in Patients With Focal Segmental Glomerulosclerosis (FSGS)

NCT02000440

COMPLETED Phase 3

A Study Comparing the Efficacy, Safety and Tolerability of Fixed Dose Combination (FDC) of FF/UMEC/VI With the FDC of FF/VI and UMEC/VI; Administered Once-daily Via a Dry Powder Inhaler (DPI) in Subjects With Chronic Obstructive Pulmonary Disease (COPD)

NCT02164513

COMPLETED Phase 1

Study to Evaluate the Safety, Tolerability, and Pharmacokinetics of Single and Repeat Escalating Doses of GSK1325756 Solution for Infusion, and Absolute Bioavailability Relative of an Oral Dose, in Healthy Adult Subjects

NCT02169583

COMPLETED Phase 3

A Phase 3 Clinical Outcomes Study to Compare the Incidence of Major Adverse Cardiovascular Events in Subjects Presenting With Acute Coronary Syndrome Treated With Losmapimod Compared to Placebo (LATITUDE-TIMI 60)

NCT02145468

COMPLETED

Fluarix/ FluLaval/ Fluarix Quadrivalent/ FluLaval Quadrivalent Vaccine Pregnancy Registry

NCT02148211

COMPLETED Phase 1

A Safety Study to Investigate the Skin Irritancy Potential of Diclofenac-Menthol Gel

NCT02169154

TERMINATED Phase 2

Study to Evaluate the Safety and Efficacy of GSK1278863 in Recombinant Human Erythropoietin (rhEPO) Hyporesponsive Hemodialysis-dependent Chronic Kidney Disease Subjects With Anemia

NCT02075463

COMPLETED NA

The Effect of Experimental Dentifrices on Remineralization of Caries Lesions In-situ

NCT02195583

COMPLETED

ELLIPTA™ vs. MDI Inhaler Preference Study, in Adult Subjects With Asthma

NCT02135718

COMPLETED Phase 3

A Phase 3a, Repeat Dose, Open-label, Long-term Safety Study of Mepolizumab in Asthmatic Subjects

NCT02135692

COMPLETED Phase 2

A Phase 2B Open-Label, Single-Arm, Repeat-Dose Study to Evaluate the Reliability of an Autoinjector

NCT02124798

COMPLETED Phase 2

A Dose Escalation Study to Investigate the Safety, Pharmacokinetics (PK), Pharmacodynamics (PD) and Clinical Activity of GSK525762 in Subjects With Relapsed, Refractory Hematologic Malignancies

NCT01943851

COMPLETED Phase 3

Belimumab Treatment Holiday and Treatment Re-start Study in Lupus Patients

NCT02119156

COMPLETED Phase 1

A Study to Evaluate a Skeletal-muscle Microbiopsy Technique With Dynamic Proteomic Measurement in Healthy Male Volunteers

NCT01962454

COMPLETED Phase 3

Efficacy and Safety of Mepolizumab as an Add-on Treatment in Chronic Obstructive Pulmonary Disease (COPD)

NCT02105961

TERMINATED Phase 1

A Study to Investigate the Safety, Pharmacokinetics, Pharmacodynamics and Clinical Activity of GSK2816126 in Subjects With Relapsed/Refractory Diffuse Large B Cell Lymphoma, Transformed Follicular Lymphoma, Other Non-Hodgkin's Lymphomas, Solid Tumors and Multiple Myeloma

NCT02082977

COMPLETED Phase 1

A Study to Investigate the Safety, Pharmacokinetics, Pharmacodynamics, and Anti-Cancer Activity of Trametinib in Combination With Palbociclib in Subjects With Solid Tumors

NCT02065063

COMPLETED Phase 3

Study to Determine the Immunogenicity and Safety of GlaxoSmithKline (GSK) Biologicals; Infanrix Hexa at 2, 4 and 6 Months of Age in Healthy Infants

NCT02096263

COMPLETED Phase 3

Study to Evaluate Efficacy and Safety of Mepolizumab for Frequently Exacerbating Chronic Obstructive Pulmonary Disease (COPD) Patients

NCT02105948

TERMINATED Phase 2

Dabrafenib/Trametinib, BRAF or BRAF AND MEK Pre-op With BRAF and MEK Post-op, Phase IIB, Melanoma With Brain Mets,Biomarkers and Metabolites

NCT01978236

COMPLETED Phase 3

Study Evaluating the Efficacy and Safety of Fluticasone Furoate/Vilanterol Inhalation Powder (FF/VI) Compared With Vilanterol Inhalation Powder (VI) in Subjects With Chronic Obstructive Pulmonary Disease (COPD)

NCT02105974

TERMINATED Phase 2

Nutritional Adequacy Therapeutic Enhancement in the Critically Ill. The NUTRIATE Study

NCT01934192

COMPLETED Phase 1

Retapamulin Microdialysis Feasibility Study

NCT01812382

COMPLETED Phase 1

A Safety Study to Investigate the Skin Sensitization Potential of MFC51123

NCT02192203

COMPLETED

Boostrix® Pregnancy Registry

NCT02096276

COMPLETED Phase 2

Dose-Ranging Study of GSK2140944 in the Treatment of Subjects With Suspected or Confirmed Gram-Positive Acute Bacterial Skin and Skin Structure Infections

NCT02045797

COMPLETED Phase 2

Safety and Immunogenicity of a Trivalent Group B Streptococcus Vaccine in Healthy Pregnant Women

NCT02046148

COMPLETED Phase 3

Study to Evaluate Immunogenicity and Safety Study of GSK Biologicals' Herpes Zoster (HZ) Vaccine GSK1437173A When Co-administered With Pneumovax 23™ in Adults Aged 50 Years and Older

NCT02045836

COMPLETED Phase 2

Investigation of Safety, Tolerability, Pharmacokinetics, Pharmacodynamics, and Clinical Efficacy of Oral Danirixin in Symptomatic COPD Subjects With Mild to Moderate Airflow Limitation at Risk for Exacerbations

NCT02130193

COMPLETED Phase 3

Study to Assess the Immunogenicity and Safety of GlaxoSmithKline (GSK) Biologicals' Herpes Zoster Subunit (HZ/su) Vaccine (GSK1437173A) When Co-administered With GSK Biologicals' Diphtheria, Tetanus and Pertussis Vaccine (Boostrix®) in Adults Aged 50 Years and Older

NCT02052596

COMPLETED Phase 3

A Study to Investigate Mepolizumab in the Treatment of Eosinophilic Granulomatosis With Polyangiitis

NCT02020889

TERMINATED Phase 1

Investigation of GSK2879552 in Subjects With Relapsed/Refractory Small Cell Lung Carcinoma

NCT02034123

COMPLETED Phase 3

Immunogenicity, Safety and Reactogenicity Study of GlaxoSmithKline (GSK) Biologicals' Hib-MenCY-TT (MenHibrix®) Vaccine Compared to Merck & Co, Inc. PedvaxHIB Vaccine in Healthy Infants and Toddlers 12 to 15 Months of Age

NCT01978093

COMPLETED Phase 4

A Five Day Clinical Study to Examine the Effects of a Benzoyl Peroxide Treatment on Facial Acne Lesions

NCT02052752

COMPLETED Phase 1

A Study to Investigate the Safety and Pharmacokinetics of a Single Dose of GSK2256294 in Healthy Young Males and Elderly Subjects

NCT02006537

COMPLETED Phase 4

Study Evaluating the Effect of Fluticasone Furoate/ Vilanterol (FF/VI) Inhalation Powder Compared With Vilanterol (VI) Inhalation Powder on Bone Mineral Density (BMD) in Subjects With Chronic Obstructive Pulmonary Disease (COPD).

NCT01957150

COMPLETED Phase 1

Relative Bioavailability, Safety, Tolerability, Pharmacokinetics (PK) and Food Effect Study of GSK2140944 in Healthy Subjects

NCT02045849

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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.

Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. GlaxoSmithKline pipeline card: 1,345 registered trials from official public datasets. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.