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 14 of 37

TERMINATED Phase 1

A Study of ARRY-382 in Combination With Pembrolizumab for the Treatment of Patients With Advanced Solid Tumors

NCT02880371

COMPLETED Phase 1

An Open-Label, 2 Treatment Period,Study To Study The Drug Interaction Between Repeated Doses Of Itraconazole And Single Dose Pharmacokinetics (PK) Of PF-06648671 In Healthy Adults.

NCT02883114

TERMINATED Phase 1

Trial of Intratumoral Injections of TTI-621 in Subjects With Relapsed and Refractory Solid Tumors and Mycosis Fungoides

NCT02890368

COMPLETED Phase 3

A Study of Ibuprofen (IBU) 250mg/APAP 500mg In The Treatment Of Post-Surgical Dental Pain

NCT02837952

COMPLETED Phase 1

A Multiple Dose Safety And Pharmacokinetic (PK) Study Of PF-06427878 In Overweight-Obese, Otherwise Healthy Subjects

NCT02855177

COMPLETED Phase 3

Long-term Observational Study of Subjects From Tanezumab Studies Who Undergo a Total Knee, Hip or Shoulder Replacement

NCT02674386

COMPLETED Phase 1

Single Dose, Repeated Dose, and Conditional Food Effect Study of PF-05221304 in Healthy Subjects

NCT02871037

TERMINATED Phase 2

Study to Evaluate the Effect of GBT440 in Pediatrics With Sickle Cell Disease

NCT02850406

COMPLETED Phase 1

A Study To Evaluate The Effect Of Rifampin On Pharmacokinetics Of PF-06463922 In Healthy Volunteers

NCT02804399

COMPLETED Phase 1

A Study To Evaluate The Effect Of PF-04447943 On Qtc Interval In Healthy Adult Subjects

NCT02785770

COMPLETED Phase 3

Long-term Safety of Tafamidis in Subjects With Transthyretin Cardiomyopathy

NCT02791230

COMPLETED Phase 3

Efficacy Study Of Tofacitinib In Pediatric JIA Population

NCT02592434

COMPLETED Phase 1

Evaluation Of Safety, Tolerability And Pharmacokinetics Of Single And Multiple Doses Of Compound PF-06823859

NCT02766621

TERMINATED Phase 3

Avelumab in Previously Untreated Patients With Epithelial Ovarian Cancer (JAVELIN OVARIAN 100)

NCT02718417

TERMINATED Phase 2

Ph1b/2 Study of PF-04136309 in Combination With Gem/Nab-P in First-line Metastatic Pancreatic Patients

NCT02732938

COMPLETED Phase 1

A Study Comparing Amounts of Tafamidis (PF-06291826) in the Blood Without Food in Healthy Volunteers

NCT02746926

TERMINATED Phase 1

PF-06671008 Dose Escalation Study in Advanced Solid Tumors

NCT02659631

COMPLETED Phase 1

Study Of PF-06817024 In Healthy Subjects, In Patients With Chronic Rhinosinusitis With Nasal Polyps And in Patients With Atopic Dermatitis

NCT02743871

COMPLETED Phase 3

A Study Of Avelumab In Patients With Locally Advanced Or Metastatic Urothelial Cancer (JAVELIN Bladder 100)

NCT02603432

COMPLETED Phase 2

Study To Evaluate Pf-04965842 In Subjects With Moderate To Severe Atopic Dermatitis

NCT02780167

COMPLETED Phase 3

A Study of Avelumab With Axitinib Versus Sunitinib In Advanced Renal Cell Cancer (JAVELIN Renal 101)

NCT02684006

TERMINATED Phase 1

Avelumab In Patients With Previously Treated Advanced Stage Classical Hodgkin's Lymphoma (JAVELIN HODGKINS)

NCT02603419

TERMINATED Phase 2

Efficacy, Safety and Tolerability of PF-06649751 in Parkinson's Disease Patients With Motor Fluctuations

NCT02687542

COMPLETED Phase 1

A Research Study To Test How Multiple Doses Of Filgrastim Hospira Works In The Body Of Healthy Study Subjects When Given by Subcutaneous Injection (SC) (Shot) Compared To An Already U.S.-Approved Drug Neupogen® (Amgen)

NCT02766634

TERMINATED Phase 4

Dextromethorphan Pediatric Acute Cough Study

NCT02651116

COMPLETED Phase 1

A Dose Escalation Study Of PF-06801591 In Melanoma, Head And Neck Cancer (SCCHN), Ovarian, Sarcoma, Non-Small Cell Lung Cancer, Urothelial Carcinoma or Other Solid Tumors

NCT02573259

TERMINATED Phase 1

A Trial of PF-07901800 (TTI-621) for Patients With Hematologic Malignancies and Selected Solid Tumors

NCT02663518

COMPLETED Phase 3

Efficacy and Safety of a Subcutaneous Tanezumab Titration Dosing Regimen in Subjects With Moderate to Severe Osteoarthritis of the Hip or Knee

NCT02697773

TERMINATED Phase 4

Safety and Pharmacokinetic Study of ALO-02 in Children Ages 7-17 With Pain

NCT02680847

COMPLETED Phase 1

A Study of PF-06410293 Following Subcutaneous Administration Using A Prefilled Syringe Or A Prefilled Pen In Healthy Adult Subjects

NCT02572245

COMPLETED Phase 4

Pilot Study To Investigate The Association Between Acid Control And Heartburn Symptoms After Proton Pump Inhibitor Treatment

NCT02708355

TERMINATED Phase 1

A Phase 1 Study To Evaluate Escalating Doses Of A Vaccine-Based Immunotherapy Regimen For Prostate Cancer (PrCa VBIR)

NCT02616185

COMPLETED Phase 3

A Study Of Avelumab Alone Or In Combination With Pegylated Liposomal Doxorubicin Versus Pegylated Liposomal Doxorubicin Alone In Patients With Platinum Resistant/Refractory Ovarian Cancer (JAVELIN Ovarian 200)

NCT02580058

TERMINATED Phase 1

Study to Evaluate Safety, Efficacy, Pharmacokinetics And Pharmacodynamics Of Avelumab In Combination With Either Crizotinib Or PF-06463922 In Patients With NSCLC. (Javelin Lung 101)

NCT02584634

COMPLETED Phase 2

PF-06372865 in Subjects With Photosensitive Epilepsy

NCT02564029

COMPLETED Phase 1

A Research Study To Test How Filgrastim Hospira Works In The Body Of Healthy Study Subjects When Given By Subcutaneous Injection (Shot) Compared To An Already U.S.-Approved Drug Neupogen® (Amgen)

NCT02766647

COMPLETED Phase 2

A Positron Emission Tomography/Computed Tomography (PET/CT) Bone Imaging Study in Patients Receiving Enzalutamide for Castration-Resistant Prostate Cancer (CRPC)

NCT02384382

COMPLETED Phase 1

Dose-Escalation Study Of Palbociclib + Nab-Paclitaxel In mPDAC

NCT02501902

COMPLETED Phase 2

A Gene Therapy Study for Hemophilia B

NCT02484092

COMPLETED Phase 1

PF-06669571 In Subjects With Idiopathic Parkinson's Disease

NCT02565628

TERMINATED Phase 1

A Study Of Avelumab In Combination With Other Cancer Immunotherapies In Advanced Malignancies (JAVELIN Medley)

NCT02554812

COMPLETED Phase 1

Study to Evaluate Pharmacokinetics of A Modified Release Formulation of PF-06650833 in Healthy Subjects

NCT02609139

COMPLETED Phase 1

A Study Of Avelumab In Combination With Axitinib In Advanced Renal Cell Cancer (JAVELIN Renal 100)

NCT02493751

COMPLETED Phase 4

An Evaluation of the Safety and Pharmacokinetics of Tavaborole Topical Solution for the Treatment of Fungal Disease of the Toenail in Children and Adolescents

NCT03405818

COMPLETED Phase 2

A 12-week Study To Evaluate PF-06291874 Once a Day in Adults With T2DM Inadequately Controlled On Metformin

NCT02554877

COMPLETED Phase 1

A Study To Investigate The Absorption, Distribution, Metabolism, And Excretion Of [14c]PF-06463922 In Healthy Male Volunteers

NCT02564562

COMPLETED Phase 1

A Study to Evaluate the Pharmacodynamic Effects of Single Oral Doses of PF-06648671 on β-Amyloid (Aβ) Concentrations in Cerebrospinal Fluid (CSF)

NCT02407353

TERMINATED Phase 1

Crizotinib Plus Pembrolizumab In Alk-Positive Advanced Non Small Cell Lung Cancer Patients

NCT02511184

COMPLETED Phase 2

Evaluation of Safety, Pharmacokinetics and Efficacy of Ceftazidime and Avibactam (CAZ-AVI ) Compared With Cefepime in Children From 3 Months to Less Than 18 Years of Age With Complicated Urinary Tract Infections (cUTIs)

NCT02497781

COMPLETED Phase 4

Etanercept Withdrawal And Retreament Study In Subjects With Nr-ax SpA

NCT02509026

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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.