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 11 of 27

COMPLETED Phase 1

Study of Dabrafenib +/- Trametinib in Combination With Ipilimumab for V600E/K Mutation Positive Metastatic or Unresectable Melanoma

NCT01767454

COMPLETED Phase 2

To Investigate the Safety, Tolerability and Pharmacodynamics of GSK2890457 in Healthy Volunteers and Subjects With Type 2 Diabetes

NCT01725126

COMPLETED Phase 1

A Study to Determine the Relative Bioavailability of the MEK Inhibitor, Trametinib, in Subjects With Solid Tumor Malignancies

NCT01725100

COMPLETED NA

Evaluation of the Immune Response to Clostridium Difficile in Adults With Clostridium Difficile Infection (CDI)

NCT01716533

COMPLETED Phase 3

Investigating the Efficacy of a Dentifrice in Providing Long Term Relief From Dentinal Hypersensitivity

NCT01827670

COMPLETED Phase 3

Immunogenicity and Safety of GlaxoSmithKline (GSK) Biologicals' Boostrix™ Vaccine in Previously Boosted Young Adults

NCT01738477

COMPLETED Phase 3

The Purpose of This Study is to Evaluate the Spirometric Effect (Trough FEV1) of Umeclidinium/Vilanterol 62.5/25 mcg Once Daily Compared With Tiotriopium 18 mcg Once Daily Over a 24-week Treatment Period in Subjects With COPD

NCT01777334

COMPLETED Phase 1

A Study to Evaluate the Effect of Repeat Oral Dosing of GSK2118436 on Cardiac Repolarization in Subjects With V600 BRAF Mutation-Positive Tumors

NCT01738451

COMPLETED Phase 1

A Study to Evaluate the Effect of Losmapimod on Cardiac Conduction as Compared to Placebo and Moxifloxacin

NCT01756495

COMPLETED Phase 3

Efficacy and Safety of the Addition of Fluticanse Propionate/Salmeterol (250/50mcg) Twice-daily to 2 Doses of Umeclidinium Bromide (62.5 or 125mcg) Once-daily Over 12 Weeks

NCT01772134

COMPLETED Phase 3

Efficacy and Safety of the Addition of Fluticasone Propionate/Salmeterol (250/50mcg) Twice-daily to 2 Doses of Umeclidinium Bromide Inhalation Powder (62.5 or 125mcg) Once-daily Over 12 Weeks.

NCT01772147

COMPLETED Phase 2

Exploratory Study to Evaluate the Efficacy of an Occlusion Based Dentifrice in Relief of Dentinal Hypersensitivity

NCT01831817

COMPLETED

Study to Assess the Burden of Mild Outcomes (Physician Office Visits) Due to Influenza in the United States

NCT02019732

COMPLETED Phase 2

Study of Ozanezumab (GSK1223249) Versus Placebo in the Treatment of Amyotrophic Lateral Sclerosis

NCT01753076

TERMINATED Phase 4

Dose-Optimization, Adjunctive Treatment Study of Ezogabine/Retigabine Immediate Release in Partial-onset Seizures

NCT01721317

COMPLETED Phase 1

A Study to Assess the Systemic Exposure, Systemic Pharmacodynamics and Safety and Tolerability of FluticasoneFuroate, Umeclidinium and Vilanterol in Healthy Subjects

NCT01691547

COMPLETED Phase 1

To Estimate the Potential Effects of Repeat Doses of Darapladib on the Pharmacokinetics (PK) of Rosuvastatin as Well as Evaluating Safety and Tolerability in Healthy Volunteers

NCT01751074

COMPLETED Phase 3

Assessment of Fluticasone Propionate on Ocular Allergy Symptoms

NCT01817790

COMPLETED Phase 4

Belimumab Assessment of Safety in SLE

NCT01705977

COMPLETED Phase 3

Consistency Study of GlaxoSmithKline (GSK) Biologicals' MMR Vaccine (209762) (Priorix) Comparing Immunogenicity and Safety to Merck & Co., Inc.'s MMR Vaccine (M-M-R II), in Children 12 to 15 Months of Age

NCT01702428

COMPLETED Phase 1

To Investigate the Pharmacokinetics and Safety of Fluticasone Furoate (FF)/ Umeclidinium (UMEC) Combination Compared With FF and UMEC Monotherapies in Adult Healthy Volunteers Using a Dry Powder Inhaler (DPI)

NCT01725685

COMPLETED Phase 1

Study in Healthy Volunteers, to Evaluate the Safety, Efficacy and Dose Responses of SB-751689 (Ronacaleret)

NCT01802892

COMPLETED Phase 1

A Study to Assess the Pharmacokinetics, Safety and Tolerability of Repeat Oral Doses of Darapladib (SB-480848) in Subjects With Severe Renal Impairment

NCT01711723

COMPLETED Phase 1

This Study Will Investigate the Safety, Tolerability and Pharmacokinetic Profile of Repeat Oral Doses of GSK2140944 in Healthy Adult Subjects

NCT01706315

COMPLETED Phase 3

A Study to Assess the Efficacy of Fluticasone Furoate/Vilanterol (FF/VI) Inhalation Powder 100/25 mcg Once Daily Compared With Fluticasone Propionate/Salmeterol Inhalation Powder 250/50 mcg Twice Daily in Subjects With Chronic Obstructive Pulmonary Disease (COPD)

NCT01706328

COMPLETED Phase 3

Immunogenicity and Safety Study of GlaxoSmithKline (GSK) Biologicals' Combined Measles-mumps-rubella (MMR) Vaccine in Children in Their Second Year of Life

NCT01681992

COMPLETED Phase 3

Efficacy and Safety Study of Mepolizumab Adjunctive Therapy in Subjects With Severe Uncontrolled Refractory Asthma

NCT01691521

COMPLETED Phase 3

Immunogenicity, Safety and 1 Year Persistence of Antibodies After Either One or Two Doses of Meningococcal ACWY Conjugate Vaccine in Healthy Children 2 Through 10 Years of Age.

NCT01682876

COMPLETED NA

A Study in Adolescent Females to Explore Cytomegalovirus Infection

NCT01691820

COMPLETED Phase 1

This Study Will Investigate the Effect of Single Oral Doses of Retosiban on Cardiac Repolarization, With Moxifloxacin as a Positive Control in Healthy Volunteers.

NCT01702376

COMPLETED Phase 3

Mepolizumab Steroid-Sparing Study in Subjects With Severe Refractory Asthma

NCT01691508

COMPLETED Phase 3

MEA112997 Open-label Long Term Extension Safety Study of Mepolizumab in Asthmatic Subjects

NCT01691859

COMPLETED Phase 1

A Pilot Study of Genetically Engineered NY-ESO-1 Specific NY-ESO-1ᶜ²⁵⁹T in HLA-A2+ Patients With Synovial Sarcoma

NCT01343043

COMPLETED Phase 1

A Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of GSK2849466 in Healthy Male Subjects

NCT01696604

COMPLETED Phase 3

An Efficacy and Safety Study of Fluticasone Furoate/Vilanterol (FF/VI) 200/25 Microgram (mcg) , FF/VI 100/25 mcg, and FF 100 mcg in Adults and Adolescents With Persistent Asthma.

NCT01686633

COMPLETED Phase 1

A Study to Look at the Electrical Activity of the Heart in Subjects With Solid Tumor Cancers, Before and After Receiving the Study Treatment, GSK1120212

NCT01658553

COMPLETED Phase 3

Comparison of GlaxoSmithKline (GSK)134612 in Subjects With Increased Risk for Meningococcal Disease Versus Healthy Subjects

NCT01641042

COMPLETED Phase 2

Pediatric Lupus Trial of Belimumab Plus Background Standard Therapy

NCT01649765

TERMINATED Phase 3

Long-term, Open-label Safety Extension Study of Retigabine/Ezogabine in Pediatric Subjects (>= 12 Years Old) With POS or LGS

NCT01668654

COMPLETED Phase 1

A Pharmacokinetics Study of the Effects of GSK2118436 on Warfarin, the Effects of Ketoconazole and Gemfibrozil on GSK2118436, and the Effects of Repeat Doses of GSK2118436 in Subjects With BRAF Mutant Solid Tumors

NCT01340846

COMPLETED Phase 2

The Safety, Tolerability, PK and PD of GSK2586881 in Patients With Acute Lung Injury

NCT01597635

COMPLETED Phase 3

Nicotine Mouth Film for Craving Relief.

NCT01702532

COMPLETED Phase 1

Study to Evaluate the Safety and Immunogenicity of GlaxoSmithKline (GSK) Biologicals' Influenza Vaccines GSK2654911A and GSK2654909A Administered to Adults 18 to 64 Years of Age

NCT01659086

COMPLETED Phase 1

Study to Evaluate the Pharmacokinetics, Safety and Tolerability of GSK557296 in Healthy Women Volunteers After Single and Repeat Dosing

NCT01669083

COMPLETED Phase 1

A Study to Investigate the Recovery, Excretion, and Pharmacokinetics of 14C -GSK1322322 After an Intravenous and an Oral Dose

NCT01663389

COMPLETED Phase 2

Dose Ranging of GSK2336805 in Combination Therapy

NCT01648140

COMPLETED Phase 1

Eltrombopag/Boceprevir and Eltrombopag/Telaprevir Drug-Drug Interaction Study In Healthy Adult Subjects

NCT01657552

COMPLETED Phase 2

Exploratory Study to Evaluate an Occlusion Based Dentifrice in Relief of Dentinal Hypersensitivity

NCT01691560

COMPLETED Phase 1

Relative Bioavailibilty for Pediatric Powder for Suspension (PfOS) Formulation

NCT01647659

TERMINATED Phase 2

Study in Pediatric Subjects With Epilepsy

NCT01494584

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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.