Pfizer

Open enrollment with an early-phase pipeline tilt

According to ClinicalTrials.gov-derived indexes, Pfizer sits in the top decile of US sponsors by registered trial count (#7 of 15,742 sponsors by registered trial count).

1,845 total trials 106 currently recruiting 1335 completed early-phase tilt top decile by trial count

Pfizer: 1,845 sponsored US clinical trials, 106 recruiting.

Pfizer sponsors 1,845 registered US clinical trials on ClinicalTrials.gov, 106 of them currently recruiting, and 1,335 completed. 504 of these trials are in Phase 3-4 (later-stage) and 1,173 in Phase 1-2 (earlier-stage). The most-studied condition in this pipeline is Healthy, with 44 trials.

Top-decile sponsor footprint

Pfizer ranks in the top decile of sponsors by registered trial count (#7 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 39/100

1,335 of 1,673 decided trials (Completed vs. Terminated on ClinicalTrials.gov) reached their planned completion (79.8%), 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

1,845 total, page 33 of 37

TERMINATED NA

The Aim is to Estimate the Total Amount of Insulin-producing Cells in the Pancreas by MRI.

NCT00280085

COMPLETED Phase 1

Study Of SU011248 In Combination With Paclitaxel/Carboplatin In Patients With Advanced Solid Tumors

NCT00511849

COMPLETED Phase 2

A Study To Measure The Level Of Drug In Nasal Tissue And Blood After Taking A Single 2g Dose Or 500mg Tablets For Up To

NCT00232154

COMPLETED Phase 4

A Study To Estimate The Effect Of Omeprazole On The Pharmacokinetics Of Nelfinavir In Healthy Subjects

NCT00251030

COMPLETED Phase 3

US Inhaled Insulin Dose Titration Study

NCT00246623

TERMINATED Phase 3

Trial of Paclitaxel/Carboplatin + PF-3512676 vs Paclitaxel/Carboplatin Alone in Patients With Advanced Non-Small Cell Lung Cancer

NCT00254891

TERMINATED Phase 2

MEK Inhibitor PD-325901 To Treat Advanced Non-Small Cell Lung Cancer

NCT00174369

TERMINATED Phase 3

Randomized Trial of Gemcitabine/Cisplatin + PF-3512676 vs Gemcitabine/Cisplatin Alone in Patients With Advanced NSCLC

NCT00254904

COMPLETED Phase 1

Study To Evaluate The Safety, Pharmacokinetics, And Pharmacodynamics Of PF-00299804 In Patients With Advanced Solid Tumors

NCT00225121

COMPLETED Phase 1

The Dose Response of Prednisone on Biochemical and Clinical Makers in Adult Healthy Volunteers

NCT02767089

COMPLETED Phase 1

Study Of SU011248 In Combination With Docetaxel (Taxotere) And Prednisone In Patients With Prostate Cancer

NCT00137436

COMPLETED Phase 2

A Safety and Tolerability Evaluation of Two 10-Week Dose Regimens of Orally-Administered PF-04494700 in Alzheimer's Patients

NCT00141661

COMPLETED Phase 4

An Open Label Study To Evaluate The Safety and Kinetics of Nelfinavir in Subjects With HIV and Hepatitis C

NCT00141284

TERMINATED Phase 1

Randomized Study Of Exercise And Vitamin D In Frail Elderly Subjects

NCT00249704

COMPLETED Phase 3

Study Evaluating Bazedoxifene/Conjugated Estrogens Combinations In Postmenopausal Women

NCT00242710

COMPLETED Phase 1

Study Of Sunitinib Plus FOLFOX In Patients With Solid Tumors

NCT00599924

COMPLETED Phase 2

Study Of SU011248 Administered On A Continuous Daily Dosing Schedule In Patients With Gastrointestinal Stromal Tumor

NCT00137449

COMPLETED Phase 1

CPG10101 Combination Therapy For The Treatment Of Hepatitis C In Relapsed Hepatitis C Virus (HCV) Subjects

NCT00142103

COMPLETED Phase 2

A Study Of SU011248 As Therapy In Patients With Locally Advanced Or Metastatic Non-Small Cell Lung Cancer

NCT00113516

COMPLETED Phase 1

Study Of SU011248 In Combination With Paclitaxel In Patients With Metastatic Breast Cancer

NCT00174434

COMPLETED Phase 2

A Multi-Center Trial To Evaluate The Safety And Efficacy Of Pegaptanib Sodium(Macugen) Injected Into The Eye Every 6 Weeks For Up To 2 Years For Macular Swelling Associated With Diabetes, With An Open-Label Macugen Year Extension.

NCT00605280

TERMINATED Phase 3

Linezolid in the Treatment of Hemodialysis Patients With Catheter-Related Gram-Positive Bloodstream Infections

NCT00108433

COMPLETED Phase 1

Study Of Anti-IGF-IR CP-751,871 In Patients With Solid Tumors

NCT00474760

COMPLETED Phase 2

AG-013736 In Combination With Gemcitabine Versus Gemcitabine Alone For Patients With Metastatic Pancreatic Cancer

NCT00219557

COMPLETED Phase 3

US Inhaled Insulin Therapeutic Choice Questionnaire Study

NCT00139763

COMPLETED Phase 1

A First In Human Study Of PF-00184562 In Healthy Volunteers

NCT00150215

TERMINATED Phase 1

An Open-Label Study To Assess The Pharmacokinetics, Safety And Toleration Of Vfend®; Following Multiple Dosing With Vfend

NCT00150319

COMPLETED Phase 2

Study Of SU011248 (Sunitinib) Given In A Continuous Daily Regimen In Patients With Advanced Renal Cell Cancer

NCT00137423

COMPLETED Phase 2

A 6-Month Study Of CP-690,550 Versus Tacrolimus In Kidney Transplant Patients

NCT00106639

COMPLETED Phase 1

A Study To Find The Best Doses Of SU011248 (Sunitinib) And Capecitabine When These Drugs Are Administered Together

NCT00618124

COMPLETED Phase 3

Study Evaluating Temsirolimus (CCI-779) In Mantle Cell Lymphoma (MCL)

NCT00117598

COMPLETED Phase 2

The Effects of an NR2B NMDA Antagonist, CP-101,606, in Patients With Parkinson's Disease

NCT00163085

COMPLETED Phase 3

A Clinical Trial Assessing the Impact of the Availability of Inhaled Insulin on Glucose Control

NCT00134147

COMPLETED Phase 1

Co-Administration Of Methotrexate And CP-690,550

NCT01745055

TERMINATED Phase 2

Multicentre Trial to Evaluate the Safety and Efficacy of CP-316,311 in Major Depressive Disorder

NCT00143091

COMPLETED Phase 2

A Study of the Safety and Efficacy of Tofimilast in Adult Asthmatics

NCT00150397

COMPLETED Phase 2

A Study Of 6-Month Duration To Evaluate The Weight Loss Effect Of Various Doses Of CP-945,598 In Obese Subjects

NCT00134199

COMPLETED Phase 1

A Study To Find The Best Doses Of SU011248 And Gemcitabine When Given Together To Patients With Advanced Solid Tumors

NCT00615446

COMPLETED Phase 3

Study To Evaluate The Effect Of Torcetrapib/Atorvastatin In Patients With Genetic High Cholesterol Disorder

NCT00134511

COMPLETED Phase 1

Study Evaluating Biomarkers In Relapsed/Refractory Pediatric Solid Tumors

NCT00106353

COMPLETED Phase 3

Study To Evaluate The Safety And Efficacy Of Torcetrapib/Atorvastatin In Subjects With Familial Hypercholerolemia

NCT00134485

TERMINATED Phase 3

Study To Evaluate The Effect Of Torcetrapib/Atorvastatin In Subjects With A Genetic Cholesterol Disorder.

NCT00145431

COMPLETED Phase 3

A Study Comparing The Efficacy & Safety Of Torcetrapib/Atorvastatin And Atorvastatin In Subjects With High Triglycerides

NCT00134498

COMPLETED Phase 2

Assessment of Onset, Safety & Toleration of UK-369,003 in Male Erectile Dysfunction

NCT00141349

COMPLETED Phase 2

Anti-angiogenesis Agent AG-013736 in Patients With Advanced Non-Small Cell Lung Cancer

NCT00094094

COMPLETED Phase 1

Combination Study Of CP-751,871 With Paclitaxel And Carboplatin In Advanced Lung Cancer

NCT00147537

COMPLETED Phase 4

Donepezil in the Prevention of Post-Operative Cognitive Decline

NCT00182845

COMPLETED Phase 2

Study Of SU011248 In Patients With Metastatic Non-Small Cell Lung Cancer

NCT00092001

COMPLETED Phase 3

An Open Label Study That Compares Varenicline to Transdermal Nicotine Patch for Smoking Cessation

NCT00143325

COMPLETED Phase 2

Assessment Of Efficacy and Safety UK-390,957 In Men With Premature Ejaculation

NCT00219635

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Phase Distribution

PhaseTrial count
Phase 1 703
Phase 2 470
Phase 3 411
Phase 4 93

What is open in the Pfizer pipeline

106 recruiting of 1,845 indexed (6% open); 1,335 completed (72%).

Phase mix: 504 late (III/IV) vs 1,173 early (I/II) (early-phase heavy).

Top condition: Healthy (44 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.

Pfizer: open-pipeline peers nationwide

Peers matched on 1,845 registered trials and 6% open enrollment, not the therapeutic-area sidebar.

Pfizer 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 05001,0001,5002,000 5%10%15%20% Total trials Recruiting share PfizerMemorial Sloan Kettering Cancer CenterStanford UniversityDuke UniversityUniversity of California, San FranciscoPacira PharmaceuticalsBioDelivery Sciences InternationalColgate PalmoliveDurham VA Medical Center
Pfizer 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).

Pfizer 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 1,845 trials (± recruiting share)

Sponsors near 6% open enrollment (± trial volume)

What to do with this Pfizer page

1,845 registered trials is a research-attention snapshot, not an endorsement of Pfizer or any single study.

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

Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. Pfizer pipeline card: 1,845 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.