Vertex Pharmaceuticals Incorporated

Open enrollment with an early-phase pipeline tilt

According to ClinicalTrials.gov-derived indexes, Vertex Pharmaceuticals Incorporated sits in the top decile of US sponsors by registered trial count (#156 of 15,742 sponsors by registered trial count).

191 total trials 20 currently recruiting 144 completed early-phase tilt top decile by trial count

Vertex Pharmaceuticals Incorporated: 191 sponsored US clinical trials, 20 recruiting.

Vertex Pharmaceuticals Incorporated sponsors 191 registered US clinical trials on ClinicalTrials.gov, 20 of them currently recruiting, and 144 completed. 67 of these trials are in Phase 3-4 (later-stage) and 119 in Phase 1-2 (earlier-stage). The most-studied condition in this pipeline is Cystic Fibrosis, with 20 trials.

Top-decile sponsor footprint

Vertex Pharmaceuticals Incorporated ranks in the top decile of sponsors by registered trial count (#156 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

D 63/100

144 of 161 decided trials (Completed vs. Terminated on ClinicalTrials.gov) reached their planned completion (89.4%), 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

191 total, page 3 of 4

COMPLETED Phase 3

A Phase 3 Study of VX-659 Combination Therapy in Subjects With Cystic Fibrosis Heterozygous for the F508del Mutation and a Minimal Function Mutation (F/MF)

NCT03447249

COMPLETED Phase 2

A Study to Evaluate the Efficacy and Safety of VX-150 in Treating Subjects With Pain Caused by Small Fiber Neuropathy

NCT03304522

COMPLETED Phase 3

A Study to Evaluate the Safety of Long-term Ivacaftor Treatment in Participants With Cystic Fibrosis Who Are Less Than 24 Months of Age at Treatment Initiation and Have an Approved Ivacaftor-Responsive Mutation

NCT03277196

COMPLETED Phase 2

A Study Evaluating the Safety and Efficacy of VX-659 Combination Therapy in Subjects With Cystic Fibrosis

NCT03224351

COMPLETED Phase 2

A Study to Evaluate Efficacy and Safety of VX-150 in Subjects With Acute Pain Following Bunionectomy

NCT03206749

COMPLETED Phase 3

A Study to Evaluate Safety, Efficacy, and Tolerability of TEZ/IVA in Orkambi® (Lumacaftor/Ivacaftor) -Experienced Subjects With Cystic Fibrosis (CF)

NCT03150719

COMPLETED Phase 3

A Rollover Safety Study of Lumacaftor/Ivacaftor in Subjects Aged 2 Years and Older With Cystic Fibrosis, Homozygous for the F508del-CFTR Mutation

NCT03125395

COMPLETED Phase 1

A Study of VX-445 in Healthy Subjects and Subjects With Cystic Fibrosis

NCT03227471

TERMINATED Phase 2

Study to Evaluate the Safety and Efficacy of CTP-656 in Patients With Cystic Fibrosis With CFTR Gating Mutations

NCT02971839

COMPLETED Phase 2

A Study Evaluating the Safety of VX-152 Combination Therapy in Adults With Cystic Fibrosis

NCT02951195

COMPLETED Phase 3

A Study to Evaluate the Pharmacokinetics, Safety, and Tolerability of VX-661/Ivacaftor in Pediatric Subjects With Cystic Fibrosis (CF)

NCT02953314

COMPLETED Phase 2

A Study Evaluating the Safety and Efficacy of VX-440 Combination Therapy in Subjects With Cystic Fibrosis

NCT02951182

TERMINATED Phase 2

Study to Assess the Efficacy and Safety of VX-210 in Subjects With Acute Traumatic Cervical Spinal Cord Injury

NCT02669849

COMPLETED Phase 3

A Study to Evaluate the Safety, Pharmacokinetics, and Pharmacodynamics of Ivacaftor in Subjects With Cystic Fibrosis Who Are Less Than 24 Months of Age and Have an Ivacaftor-Responsive CFTR Mutation

NCT02725567

TERMINATED Phase 4

A Pilot Study to Evaluate the Use of Smart Adherence Technology to Measure Lumacaftor/Ivacaftor Adherence in CF Subjects Homozygous for the F508del CFTR Mutation

NCT02823470

COMPLETED Phase 3

Safety and Pharmacokinetic Study of Lumacaftor/Ivacaftor in Subjects Aged 2 Through 5 Years With Cystic Fibrosis, Homozygous for F508del

NCT02797132

COMPLETED Phase 2

A Phase 2 Study to Evaluate Effects of VX-661/Ivacaftor on Lung and Extrapulmonary Systems in Subjects With Cystic Fibrosis, Homozygous for the F508del-CFTR Mutation

NCT02508207

COMPLETED Phase 2

A Study of the Efficacy and Safety of VX-150 in Subjects With Osteoarthritis of the Knee

NCT02660424

COMPLETED Phase 3

Rollover Study to Evaluate the Safety and Efficacy of Long-term Treatment With Lumacaftor in Combination With Ivacaftor

NCT02544451

COMPLETED Phase 3

A Study to Evaluate the Safety and Efficacy of Long Term Treatment With VX-661 in Combination With Ivacaftor in Participants With Cystic Fibrosis Who Have an F508del-CFTR Mutation

NCT02565914

COMPLETED Phase 3

A Study to Evaluate the Efficacy and Safety of VX-661 in Combination With Ivacaftor in Subjects Aged 12 Years and Older With Cystic Fibrosis, Heterozygous for the F508del-CFTR Mutation

NCT02516410

COMPLETED Phase 3

A Study to Evaluate the Efficacy and Safety of Lumacaftor in Combination With Ivacaftor in Subjects With CF, Homozygous for the F508del-CFTR Mutation

NCT02514473

COMPLETED Phase 3

A Phase 3 Study of Tezacaftor (VX-661) in Combination With Ivacaftor (VX-770) in Subjects Aged 12 Years and Older With Cystic Fibrosis (CF), Who Have One F508del-CFTR Mutation and a Second Mutation That Has Been Demonstrated to be Clinically Responsive to Ivacaftor

NCT02412111

COMPLETED Phase 3

Study to Evaluate Lumacaftor and Ivacaftor Combination Therapy in Subjects 12 Years and Older With Advanced Lung Disease

NCT02390219

COMPLETED Phase 3

A Phase 3 Study to Evaluate the Efficacy and Safety of Ivacaftor and VX-661 in Combination With Ivacaftor in Subjects Aged 12 Years and Older With Cystic Fibrosis, Heterozygous for the F508del-cystic Fibrosis Transmembrane Conductance Regulator (CFTR) Mutation

NCT02392234

COMPLETED Phase 3

A Randomized, Double-Blind, Placebo-Controlled, Parallel-Group Study to Evaluate the Efficacy and Safety of VX-661 in Combination With Ivacaftor

NCT02347657

COMPLETED Phase 2

Study to Evaluate Safety and Efficacy of VX-661 in Combination With Ivacaftor in Subjects With Cystic Fibrosis, Homozygous for the F508del-CFTR Mutation With an Open-Label Expansion

NCT02070744

COMPLETED Phase 3

Roll-Over Study of Ivacaftor in Cystic Fibrosis Pediatric Subjects With a CF Transmembrane Conductance Regulator Gene (CFTR) Gating Mutation

NCT01946412

COMPLETED Phase 3

A Phase 3 Rollover Study of Lumacaftor in Combination With Ivacaftor in Subjects 12 Years and Older With Cystic Fibrosis

NCT01931839

COMPLETED Phase 3

Study of Lumacaftor in Combination With Ivacaftor in Subjects 6 Through 11 Years of Age With Cystic Fibrosis, Homozygous for the F508del-CFTR Mutation

NCT01897233

COMPLETED Phase 1

A Phase 1 Study to Investigate the Food Effect of Lumacaftor in Combination With Ivacaftor

NCT01899105

COMPLETED Phase 1

Phase 1 PK Interaction Study Between VX-509 and Prednisone or Methylprednisolone in Healthy Male Subjects

NCT01886209

COMPLETED

An Ocular Safety Study of Ivacaftor-Treated Pediatric Patients 11 Years of Age or Younger With Cystic Fibrosis

NCT01863238

COMPLETED Phase 3

A Study of Lumacaftor in Combination With Ivacaftor in Cystic Fibrosis Subjects Aged 12 Years and Older Who Are Homozygous for the F508del-CFTR Mutation

NCT01807923

COMPLETED Phase 3

A Study of Lumacaftor in Combination With Ivacaftor in Cystic Fibrosis Subjects Aged 12 Years and Older Who Are Homozygous for the F508del-CFTR Mutation

NCT01807949

COMPLETED Phase 2

A Phase 2/3 Open-label Extension Study to Evaluate Long-Term Safety and Efficacy With VX-509 in Subjects With Rheumatoid Arthritis

NCT01830985

COMPLETED Phase 3

Rollover Study of Ivacaftor in Subjects With Cystic Fibrosis and a Non G551D CFTR Mutation

NCT01707290

COMPLETED Phase 2

A Magnetic Resonance Imaging Study and Arthroscopic Biopsy Substudy in Subjects With Active Rheumatoid Arthritis Receiving VX-509, an Oral JAK3 Inhibitor

NCT01754935

COMPLETED Phase 1

A Phase 1 Study to Examine the Drug-Drug Interaction of Ciprofloxacin, Itraconazole, and Rifampin on the Combination of Lumacaftor With Ivacaftor in Healthy Adult Subjects

NCT01768663

COMPLETED Phase 3

Study of Ivacaftor in Cystic Fibrosis Subjects 2 Through 5 Years of Age With a CFTR Gating Mutation

NCT01705145

TERMINATED Phase 1

An Open-Label Study of the Effect of Telaprevir in Combination With Peginterferon Alfa-2b and Ribavirin in Pediatric Subjects Infected With Hepatitis C Virus

NCT01701063

COMPLETED Phase 2

A Phase 2 Study to Evaluate the Safety and Efficacy of VX-135 With Ribavirin in Treatment-Naïve Subjects With Chronic Hepatitis C

NCT01726946

COMPLETED Phase 2

Pilot Study Testing the Effect of Ivacaftor on Lung Function in Subjects With Cystic Fibrosis and Residual CFTR Function

NCT01685801

COMPLETED Phase 2

VX-222 + Telaprevir + Ribavirin for 12 or 16 Weeks in Treatment-Naive Subjects With Genotype 1a Hepatitis C

NCT01581138

COMPLETED Phase 3

Study of Ivacaftor in Subjects With Cystic Fibrosis (CF) Who Have a Non-G551D CF Transmembrane Conductance Regulator (CFTR) Gating Mutation

NCT01614470

COMPLETED Phase 3

Study of Ivacaftor in Subjects With Cystic Fibrosis (CF) Who Have the R117H-CF Transmembrane Conductance Regulator (CFTR) Mutation (KONDUCT)

NCT01614457

COMPLETED Phase 2

24-week Study With Open Label Extension of VX-509, an Oral JAK3 Inhibitor, in Subjects Taking Methotrexate

NCT01590459

COMPLETED Phase 2

A Study to Evaluate the Efficacy and Safety of Quadruple Therapy (VX-222, Telaprevir,Peginterferon-Alfa-2a, Ribavirin) in Subjects With Chronic Hepatitis C With Compensated Cirrhosis

NCT01516918

COMPLETED Phase 2

Study of VX-661 Alone and in Combination With Ivacaftor in Subjects Homozygous or Heterozygous to the F508del-Cystic Fibrosis Transmembrane Conductance Regulator(CFTR) Mutation

NCT01531673

TERMINATED Phase 2

An Open Label Study of the Effect of Telaprevir in Combination With Ribavirin and Peginterferon on HCV Infection in Stable Liver Transplant Patients

NCT01467505

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What is open in the Vertex Pharmaceuticals Incorporated pipeline

20 recruiting of 191 indexed (10% open); 144 completed (75%).

Phase mix: 67 late (III/IV) vs 119 early (I/II) (early-phase heavy).

Top condition: Cystic Fibrosis (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.

Vertex Pharmaceuticals Incorporated: open-pipeline peers nationwide

Peers matched on 191 registered trials and 10% open enrollment, not the therapeutic-area sidebar.

Vertex Pharmaceuticals Incorporated 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 050100150200250 10%12%14%16%18%20% Total trials Recruiting share Vertex Pharmaceuticals IncorporatedVanderbilt-Ingram Cancer CenterHospital for Special Surgery, New YorkNationwide Children's HospitalArizona State UniversityAlexion PharmaceuticalsZimmer BiometUniversity of Mississippi Medical CenterBastyr University
Vertex Pharmaceuticals Incorporated 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).

Vertex Pharmaceuticals Incorporated 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 191 trials (± recruiting share)

Sponsors near 10% open enrollment (± trial volume)

What to do with this Vertex Pharmaceuticals Incorporated page

191 registered trials is a research-attention snapshot, not an endorsement of Vertex Pharmaceuticals Incorporated or any single study.

  • 20 of Vertex Pharmaceuticals Incorporated's trials are currently recruiting, check each one's own eligibility criteria before contacting a site. Browse recruiting trials
  • Cystic Fibrosis is the condition Vertex Pharmaceuticals Incorporated studies most, compare against other sponsors active in the same condition before evaluating a specific study. See Cystic Fibrosis 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.

Vertex Pharmaceuticals Incorporated pipeline card: 191 registered trials from official public datasets.Report a data error.