Gilead Sciences

Open enrollment with an early-phase pipeline tilt

According to ClinicalTrials.gov-derived indexes, Gilead Sciences sits in the top decile of US sponsors by registered trial count (#71 of 15,742 sponsors by registered trial count).

504 total trials 26 currently recruiting 346 completed early-phase tilt top decile by trial count

Gilead Sciences: 504 sponsored US clinical trials, 26 recruiting.

Gilead Sciences sponsors 504 registered US clinical trials on ClinicalTrials.gov, 26 of them currently recruiting, and 346 completed. 164 of these trials are in Phase 3-4 (later-stage) and 317 in Phase 1-2 (earlier-stage). The most-studied condition in this pipeline is HIV-1-infection, with 20 trials.

Top-decile sponsor footprint

Gilead Sciences ranks in the top decile of sponsors by registered trial count (#71 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

F 34/100

346 of 445 decided trials (Completed vs. Terminated on ClinicalTrials.gov) reached their planned completion (77.8%), 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

504 total, page 6 of 11

COMPLETED Phase 3

Switch Study to Evaluate F/TAF in HIV-1 Positive Participants Who Are Virologically Suppressed on Regimens Containing FTC/TDF

NCT02121795

COMPLETED Phase 2

Efficacy and Safety of Ledipasvir/Sofosbuvir Fixed-Dose Combination and Sofosbuvir + Ribavirin for Subjects With Chronic Hepatitis C Virus (HCV) and Inherited Bleeding Disorders

NCT02120300

COMPLETED Phase 1

Safety, Tolerability, and Pharmacokinetics of Andecaliximab in Adults With Chronic Obstructive Pulmonary Disease (COPD)

NCT02077465

COMPLETED Phase 2

Evaluate the Efficacy and Safety of Arhalofenate for Preventing Flares and Reducing Serum Uric Acid in Gout Patients

NCT02063997

COMPLETED Phase 3

Efficacy and Safety of E/C/F/TAF (Genvoya®) in HIV-1/Hepatitis B Co-infected Adults

NCT02071082

TERMINATED Phase 3

Efficacy and Safety of Idelalisib in Combination With Bendamustine and Rituximab in Adults With Previously Untreated Chronic Lymphocytic Leukemia

NCT01980888

COMPLETED Phase 3

Efficacy and Safety of Ledipasvir/Sofosbuvir Fixed-Dose Combination for 12 Weeks in Subjects With Chronic Genotype 1 or 4 HCV and HIV-1 Co-infection

NCT02073656

COMPLETED Phase 1

Study to Evaluate the Pharmacokinetics of Velpatasvir in Participants With Normal Renal Function and Severe Renal Impairment

NCT02002767

TERMINATED Phase 3

Phase 3 Trial of 90Y-Clivatuzumab Tetraxetan & Gemcitabine vs Placebo & Gemcitabine in Metastatic Pancreatic Cancer

NCT01956812

TERMINATED Phase 1

Phase I Study of Milatuzumab for Graft Versus Host Disease

NCT01663766

COMPLETED Phase 3

Efficacy of Tenofovir Alafenamide Versus Placebo Added to a Failing Regimen Followed by Treatment With Elvitegravir/Cobicistat/Emtricitabine/Tenofovir Alafenamide Plus Atazanavir in HIV-1 Positive, Antiretroviral Treatment-Experienced Adults

NCT01967940

COMPLETED Phase 2

Sofosbuvir Plus Ribavirin, or Ledipasvir/Sofosbuvir in Adults With HCV Infection and Renal Insufficiency

NCT01958281

COMPLETED

Adherence, HIV-1 Infection, Resistance, and Renal and Skeletal Adverse Event in Individuals Taking Truvada® for HIV Pre-Exposure Prophylaxis (PrEP)

NCT01906255

COMPLETED Phase 2

Ledipasvir/Sofosbuvir Fixed-Dose Combination With Ribavirin or GS-9669 in Subjects With Chronic Genotype 1 HCV Infection

NCT01984294

COMPLETED Phase 3

SOF (Sovaldi®) +RBV for 16 or 24 Weeks and SOF+RBV+Peg-IFN for 12 Weeks in Adults With Genotype 2 or 3 Chronic HCV Infection

NCT01962441

COMPLETED Phase 2

Safety and Efficacy of GS-4774 for the Treatment of Chronic Hepatitis B

NCT01943799

COMPLETED Phase 3

Study to Compare Tenofovir Alafenamide (TAF) Versus Tenofovir Disoproxil Fumarate (TDF) in Participants With Chronic Hepatitis B Infection Who Are Negative for Hepatitis B e Antigen

NCT01940341

COMPLETED Phase 3

Study to Compare Tenofovir Alafenamide (TAF) Versus Tenofovir Disoproxil Fumarate (TDF) in Participants With Chronic Hepatitis B Infection Who Are Positive for Hepatitis B e Antigen

NCT01940471

COMPLETED Phase 3

Phase 3 Open-Label Study to Evaluate Switching From Optimized Stable Antiretroviral Regimens Containing Darunavir to Elvitegravir/Cobicistat/Emtricitabine/Tenofovir Alafenamide (E/C/F/TAF) Fixed Dose Combination (FDC) Plus Darunavir (DRV) in Treatment Experienced HIV-1 Positive Adults

NCT01968551

COMPLETED

A Prospective, Observational Study of Individuals Who Seroconvert While Taking Truvada® for Pre-Exposure Prophylaxis (PrEP)

NCT01902472

COMPLETED Phase 2

Ledipasvir/Sofosbuvir Fixed-Dose Combination + Ribavirin in Subjects With Chronic HCV With Advanced Liver Disease or Post-Liver Transplant

NCT01938430

TERMINATED Phase 2

Two Part Study to Evaluate Pharmacokinetics, Safety, and Antiviral Activity of Elvitegravir Administered With a PI/r Background Regimen for ARV Treatment-Experienced Pediatric Participants

NCT01923311

COMPLETED Phase 2

Ledipasvir/Sofosbuvir Fixed-Dose Combination in Adults With Nosocomial Genotype 1 HCV Infection

NCT01924949

TERMINATED Phase 2

Entospletinib in Combination With Idelalisib in Adults With Relapsed or Refractory Hematologic Malignancies

NCT01796470

COMPLETED Phase 2

Safety and Efficacy of Sofosbuvir Plus Velpatasvir With or Without Ribavirin in Treatment-experienced Subjects With Chronic HCV Infection

NCT01909804

COMPLETED Phase 2

Study to Evaluate the Pharmacokinetics, Safety, and Antiviral Activity of the Elvitegravir/Cobicistat/Emtricitabine/Tenofovir Alafenamide (E/C/F/TAF) Single Tablet Regimen (STR) in HIV-1 Infected Antiretroviral Treatment-Naive Adolescents and Virologically Suppressed Children

NCT01854775

COMPLETED Phase 3

Safety and Efficacy of Ledipasvir/Sofosbuvir Fixed-Dose Combination ± Ribavirin for the Treatment of HCV (ION-3)

NCT01851330

COMPLETED Phase 1

A Phase 1 Study to Assess the Safety,Tolerability, and Pharmacokinetics of GS-6615 in Healthy Subjects

NCT01847391

COMPLETED Phase 1

A Phase 1 Study of Novel GS-9973 Tablet Formulations to Evaluate the Effect of Acid Reducing Agents, Relative Bioavailability, and Food Effect on GS-9973 Pharmacokinetics

NCT01841489

COMPLETED Phase 1

Phase 1b Safety, Tolerability, and PK Study to Assess GS-5737 in Subjects With CF

NCT01840735

COMPLETED Phase 1

Study of the Effect of GS-6615 in Subjects With LQT-3

NCT01849003

COMPLETED

A Prospective, Observational, Drug Utilization Study of Subjects Taking Truvada for Pre-exposure Prophylaxis in the USA

NCT01865799

COMPLETED Phase 2

Safety and Efficacy of Sofosbuvir + Velpatasvir With or Without Ribavirin in Treatment-Naive Adults With Chronic HCV Infection

NCT01858766

COMPLETED Phase 1

A Study to Evaluate the Effect of Ranolazine on Postprandial Glucagon in Subjects With Type 2 Diabetes.

NCT01843127

COMPLETED Phase 1

Study to Evaluate the Safety and Tolerability of Andecaliximab as Monotherapy and in Combination With Chemotherapy in Participants With Advanced Solid Tumors

NCT01803282

COMPLETED Phase 1

Study to Evaluate the Safety, Tolerability, Pharmacokinetics and Efficacy of GS-5745 (Andecaliximab) in Adults With Moderate to Severe Active Ulcerative Colitis

NCT01831427

COMPLETED Phase 3

Study to Evaluate Switching From a TDF-Containing Combination Regimen to a TAF-Containing Fixed Dose Combination (FDC) in Virologically-Suppressed, HIV-1 Positive Participants

NCT01815736

COMPLETED Phase 3

Open-label Safety Study of E/C/F/TAF (Genvoya®) in HIV-1 Positive Patients With Mild to Moderate Renal Impairment

NCT01818596

TERMINATED Phase 2

Study to Evaluate Efficacy, Safety, Tolerability, and Pharmacodynamics of Entospletinib in Adults With Relapsed or Refractory Hematologic Malignancies

NCT01799889

COMPLETED Phase 3

Study to Evaluate the Safety and Efficacy of E/C/F/TAF Versus E/C/F/TDF in HIV-1 Positive, Antiretroviral Treatment-Naive Adults

NCT01797445

COMPLETED Phase 2

Simtuzumab (GS-6624) in the Prevention of Progression of Liver Fibrosis in Adults With Primary Sclerosing Cholangitis (PSC)

NCT01672853

COMPLETED Phase 1

A Phase 1 Study to Evaluate the Pharmacokinetics of GS-5816 in Subjects With Normal Hepatic Function and Moderate or Severe Hepatic Impairment

NCT01817985

COMPLETED Phase 1

A Phase 1 Study to Evaluate the Pharmacokinetics, Metabolism, and Excretion of GS-5806

NCT01801293

TERMINATED Phase 1

Phase I Dose Escalation Study of IMMU-114 in Relapsed or Refractory NHL and CLL

NCT01728207

TERMINATED Phase 1

Study of Labetuzumab Govitecan in Participants With Metastatic Colorectal Cancer

NCT01605318

COMPLETED Phase 2

Sofosbuvir (GS-7977) in Combination With PEG and Ribavirin for 12 Weeks in Treatment Experienced Subjects With Chronic HCV Infection Genotype 2 or 3

NCT01808248

TERMINATED Phase 2

Study to Assess the Efficacy and Safety of Simtuzumab (GS-6624) in Adults With Idiopathic Pulmonary Fibrosis (IPF)

NCT01769196

TERMINATED Phase 3

Efficacy and Safety of Idelalisib (GS-1101) in Combination With Rituximab for Previously Treated Indolent Non-Hodgkin Lymphomas

NCT01732913

TERMINATED Phase 3

Efficacy and Safety of Idelalisib (GS-1101) in Combination With Bendamustine and Rituximab for Previously Treated Indolent Non-Hodgkin Lymphomas

NCT01732926

COMPLETED

A Prospective, Observational Study of Pregnancy Outcomes Among Women Exposed to Truvada for PrEP Indication

NCT01865786

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What is open in the Gilead Sciences pipeline

26 recruiting of 504 indexed (5% open); 346 completed (69%).

Phase mix: 164 late (III/IV) vs 317 early (I/II) (early-phase heavy).

Top condition: HIV-1-infection (20 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.

Gilead Sciences: open-pipeline peers nationwide

Peers matched on 504 registered trials and 5% open enrollment, not the therapeutic-area sidebar.

Gilead Sciences sits at or above the median trial volume and below 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 0200400600 0%5%10%15%20% Total trials Recruiting share Gilead SciencesH. Lee Moffitt Cancer Center and Research InstituteNational Heart, Lung, and Blood Institute (NHLBI)Boehringer IngelheimNational Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)Creighton UniversityAlmirall, S.A.Cordis USDefense and Veterans Center for Integrative Pain Management
Gilead Sciences sits at or above the median trial volume and below the median recruiting share among these 9 nationwide peers -- the two do not always move together. Source: ClinicalTrials.gov (2026-08-08 snapshot).

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

Sponsors near 504 trials (± recruiting share)

Sponsors near 5% open enrollment (± trial volume)

What to do with this Gilead Sciences page

504 registered trials is a research-attention snapshot, not an endorsement of Gilead Sciences or any single study.

  • 26 of Gilead Sciences's trials are currently recruiting, check each one's own eligibility criteria before contacting a site. Browse recruiting trials
  • HIV-1-infection is the condition Gilead Sciences studies most, compare against other sponsors active in the same condition before evaluating a specific study. See HIV-1-infection trials
  • Bring the specific trial ID (NCT number) to your own doctor before enrolling, this page is a directory, not medical guidance. Read the trial-finding guide

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

Gilead Sciences pipeline card: 504 registered trials from official public datasets.Report a data error.