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 10 of 27

TERMINATED Phase 3

A Open Label Study to Assess the Long-term Safety, Tolerability and Efficacy of Ambrisentan in Subjects With Inoperable Chronic Thromboembolic Pulmonary Hypertension (CTEPH)

NCT01894022

COMPLETED Phase 1

Pharmacokinetic (PK) Study of GSK933776 in Healthy Volunteers

NCT02033668

COMPLETED Phase 1

Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics Study of GSK2881078 in Single and Repeat Doses

NCT02045940

COMPLETED Phase 1

Evaluation of Danirixin (GSK1325756) Inhibition of CD11b Cell Surface Expression

NCT02201303

COMPLETED Phase 1

A Pharmacokinetics (PK) Study of the Effects Rabeprazole and Rifampin on Dabrafenib in Subjects With BRAF V600 Mutation Positive Tumors

NCT01954043

COMPLETED NA

A Prospective, Epidemiological Study to Assess the Disease Burden of Respiratory Syncytial Virus Associated, Suspected Lower Respiratory Tract Infections in Newborns, From 0 to 2 Years of Age and Risk of Development of Wheeze and Asthma From 0 to 6 Years of Age

NCT01995175

COMPLETED Phase 1

Effect of Using Whey Protein and Creatine Supplements on Muscular Strength in Weight-training Adult Males

NCT02094781

COMPLETED Phase 1

Dose Escalation Study to Investigate the Safety, Pharmacokinetics, and Pharmacodynamics of GSK2849330 in Subjects With Advanced Her3-Positive Solid Tumors

NCT01966445

COMPLETED Phase 1

Immunogenicity and Safety Study of GlaxoSmithKline (GSK) Biologicals' Influenza Vaccine(s) GSK3206641A and GSK3206640A Administered in Adults 18 to 64 Years of Age

NCT01999842

COMPLETED Phase 2

Evaluation of Dose Response Relationship, Safety and Efficacy of GSK1278863 in Hemodialysis-dependent Subjects With Chronic Kidney Disease Associated Anemia

NCT01977482

COMPLETED Phase 2

Market Potential of Carbon Dioxide Nasal Spray

NCT02113449

COMPLETED Phase 2

A Study to Evaluate Safety and Efficacy of GSK1278863 in Non-Dialysis Dependent (NDD) Subjects With Anemia Associated With Chronic Kidney Diseases (CKD)

NCT01977573

COMPLETED Phase 2

Study of GSK1278863 to Reduce Ischemic Events in Patients Undergoing Thoracic Aortic Aneurysm Repair

NCT01920594

COMPLETED Phase 2

Study to Evaluate Immunogenicity and Safety of GlaxoSmithKline (GSK) Biologicals' Quadrivalent Influenza Vaccine GSK2282512A When Administered to Children From 6 to 35 Months of Age

NCT01974895

COMPLETED Phase 1

A Study to Estimate the Relative Bioavailability, Tolerability and Safety of a Single Dose of Belimumab Self-Administered Subcutaneously (SC) by Healthy Subjects

NCT01894360

COMPLETED Phase 1

Study to Evaluate GSK3052230 in Combination With Paclitaxel and Carboplatin, or Docetaxel or as Single Agent in Subjects With Solid Malignancies and Deregulated Fibroblast Growth Factor (FGF) Pathway Signaling

NCT01868022

COMPLETED Phase 1

A Two-part Study to Investigate the Interaction and Pharmacokinetics of GSK2586184

NCT01953835

COMPLETED Phase 3

Study to Evaluate the Immunogenicity and Safety of GlaxoSmithKline (GSK) Biologicals' Herpes Zoster Vaccine GSK1437173A When Co-administered With GSK Biologicals' Seasonal Influenza Vaccine GSK2321138A in Adults Aged 50 Years and Older

NCT01954251

COMPLETED Phase 3

Study to Compare the Addition of Umeclidinium Bromide (UMEC) to Fluticasone Furoate (FF)/Vilanterol (VI), With Placebo Plus FF/VI in Subjects With Chronic Obstructive Pulmonary Disease (COPD)

NCT01957163

COMPLETED Phase 3

Study to Compare the Addition of Umeclidinium Bromide (UMEC) to Fluticasone Furoate (FF)/Vilanterol (VI), With Placebo Plus FF/VI in Subjects With Chronic Obstructive Pulmonary Disease (COPD) -Study 2

NCT02119286

COMPLETED Phase 2

Immunogenicity and Safety Study of Different Formulations of GlaxoSmithKline (GSK) Biologicals H7N1 Influenza Vaccine Administered to Adults 65 Years of Age and Older

NCT01949090

COMPLETED Phase 1

To Evaluate Plasma and Pulmonary Pharmacokinetics of GSK2140944

NCT01934205

TERMINATED Phase 3

Ambrisentan for Inoperable Chronic Thromboembolic Pulmonary Hypertension.

NCT01884675

COMPLETED Phase 1

Immunogenicity and Safety Study of Different Formulations of GlaxoSmithKline (GSK) Biologicals H7N1 Influenza Vaccine Administered to Adults 21 to 64 Years of Age

NCT01934127

TERMINATED Phase 1

A Three-part Study to Determine the Safety, Tolerability and Pharmacokinetics of GSK1322322 in Healthy Volunteers and Healthy Male Japanese Subjects

NCT01818011

COMPLETED Phase 2

Study to Investigate Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of GSK2330672 in Type 2 Diabetes Patients Taking Metformin

NCT01929863

COMPLETED Phase 4

A Comparator Study of Fluticasone Propionate Nasal Spray Verses (vs) Cetirizine in the Treatment of Seasonal Allergic Rhinitis

NCT01916226

COMPLETED Phase 1

Pharmacokinetic Study in Healthy Volunteers to Characterise the Exposure of Fluticasone Furoate (FF), Vilanterol (VI) and Umeclidinium (UMEC) at Two Different Doses

NCT01894386

COMPLETED Phase 1

Pharmacokinetic Interaction of Darapladib and CYP 3A4 in Healthy Subjects

NCT01873339

COMPLETED Phase 1

Safety, Tolerability, Pharmacokinetics and Pharmacodynamics Study of Single and Repeated Doses of Topical GSK1278863

NCT01831804

COMPLETED Phase 3

A Study to Compare the Efficacy and Safety of Umeclidinium/Vilanterol With Fluticasone Propionate/Salmeterol in Subjects With Chronic Obstructive Pulmonary Disease (COPD)

NCT01879410

COMPLETED Phase 2

A Study to Demonstrate the Benefit of a New Kind of Anti-cancer Treatment [PReferentially Expressed Antigen of MElanoma (PRAME) Immunotherapy] for Patients With Non-Small Cell Lung Cancer (NSCLC), After Removal of Their Tumor

NCT01853878

COMPLETED Phase 1

A Study to Evaluate the Pharmacokinetics, Safety and Tolerability of Retosiban (GSK221149) When Dosed With Efavirenz (EFZ)

NCT01867996

COMPLETED Phase 1

Study to Evaluate the Pharmacokinetics and Safety of GSK2336805 in Subjects With Hepatic Impairment and Healthy Matched Control Subjects

NCT01827657

COMPLETED Phase 3

A Phase 3 Clinical Study Investigating the Gingivitis Efficacy of a Test Dentifrice Containing Stannous Fluoride

NCT04123665

COMPLETED Phase 3

A Study to Determine Long-term Safety of Mepolizumab in Asthmatic Subjects

NCT01842607

COMPLETED Phase 2

Efficacy, Safety and Immunogenicity Study of GlaxoSmithKline(GSK) Biologicals' Candidate Malaria Vaccine 257049 in the Sporozoite Challenge Model in Healthy Malaria-naïve Adults

NCT01857869

TERMINATED Phase 2

Proof of Concept (POC) in Patients With Ischaemic Stroke

NCT01808261

COMPLETED Phase 1

Feasibility Study of Exenatide by Continuous Subcutaneous Infusion

NCT01857895

COMPLETED Phase 1

Study to Determine the Effect of Repeated Administration of Diltiazem on the Pharmacokinetics of Darapladib (Sb-480848).

NCT01852565

COMPLETED Phase 3

DISKUS vs. ELLIPTA Device Preference Study in Chronic Obstructive Pulmonary Disease (COPD)

NCT01868009

TERMINATED Phase 3

Clinical Study to Evaluate Efficacy of New Paracetamol Formulation Compared to Ibuprofen in Headache

NCT01842633

COMPLETED Phase 2

The Evaluation of Belimumab in Myasthenia Gravis (MG)

NCT01480596

TERMINATED Phase 4

An Open Label Study to Evaluate the Effects of Ezogabine/Retigabine Added to Existing Anti-epileptic Drug(s) on Urinary Voiding Function in Subjects With Partial Onset Seizures

NCT01607346

COMPLETED Phase 3

Safety and Tolerability Study of GlaxoSmithKline (GSK)1557484A Vaccine in Adults at Occupational Risk for Influenza A (H5N1) Exposure

NCT01788228

COMPLETED Phase 3

Safety and Immunogenicity of Different Dosing Schedules of GlaxoSmithkline (GSK) Biologicals' Herpes Zoster (HZ) Vaccine in Adults 50 Years of Age or Older

NCT01751165

COMPLETED Phase 3

A Study to Compare the Efficacy and Safety of Umeclidinium/Vilanterol and Fluticasone Propionate/Salmeterol in Subjects With Chronic Obstructive Pulmonary Disease (COPD)

NCT01817764

COMPLETED Phase 3

Study to Assess the Safety and Immunogenicity of GlaxoSmithKline (GSK) Biologicals' Herpes Zoster Subunit (HZ/su) Vaccine in Adults Aged 18 Years and Older With Blood Cancers

NCT01767467

COMPLETED

Safety and Effectiveness of BENLYSTA (Belimumab) in Systemic Lupus Erythematosus (SLE) Registry

NCT01729455

COMPLETED Phase 1

Single Dose Escalation Study of GSK2838232 in Healthy Subjects

NCT01802918

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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.