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 9 of 37

COMPLETED Phase 2

A 12-week Titrate Study TO Evaluate Safety, Tolerability AND Pharmacodynamics OF PF-06882961 IN Adults With Type 2 Diabetes Mellitus AND IN Non-diabetic Adults With Obesity

NCT04617275

COMPLETED Phase 1

Study OF PF-06882961 IN Participants With AND Without Varying Degrees OF Hepatic Impairement

NCT04604496

TERMINATED NA

Global Prevalence of ATTR-CM in Participants With HFpEF

NCT04424914

TERMINATED Phase 3

Efficacy, Safety, and Tolerability of ATM-AVI in the Treatment of Serious Infection Due to MBL-producing Gram-negative Bacteria

NCT03580044

COMPLETED Phase 1

A Bioequivalence Study Between the Proposed and Current Talazoparib Capsule Formulation and Food Effect Study for the Proposed Talazoparib Capsule Formulation in Participants With Advanced Solid Tumors

NCT04672460

COMPLETED Phase 2

Study To Assess Efficacy, Safety, Tolerability And Pharmacokinetics Of PF-07038124 Ointment In Participants With Atopic Dermatitis Or Plaque Psoriasis

NCT04664153

COMPLETED Phase 4

Actigraphy Improvement With Voxelotor (ActIVe) Study

NCT04400487

COMPLETED Phase 1

Estimation of the Effect of Multiple Dose Ritlecitinib (PF-06651600) on the Pharmacokinetics of a Single Dose of Caffeine in Healthy Participants

NCT04655040

TERMINATED Phase 1

Study to Test the Safety and Tolerability of PF-07209960 in Advanced or Metastatic Solid Tumors

NCT04628780

COMPLETED Phase 2

A Study to Assess the Safety and Efficacy of Oral Etrasimod in Adult Participants With Eosinophilic Esophagitis

NCT04682639

COMPLETED Phase 1

Study To Evaluate The Effect Of Two Steady State Doses of PF 06882961 On Rosuvastatin And Midazolam Pharmacokinetics In Otherwise Healthy Adult Participants With Obesity

NCT04621227

COMPLETED Phase 1

Study to Evaluate Safety and Tolerability of PF-07242813 in Healthy Participants and Participants With Atopic Dermatitis

NCT04668066

COMPLETED Phase 1

A Study to Evaluate GBT021601 in Single and Multiple Doses in Healthy Participants

NCT05036512

COMPLETED Phase 3

Safety and Immunogenicity Study of 20vPnC in Healthy Children 15 Months Through 17 Years of Age

NCT04642079

TERMINATED Phase 2

A Study Of Safety, Tolerability And Effectiveness Of Recifercept In Children With Achondroplasia

NCT04638153

COMPLETED Phase 1

Study to Assess the Safety and Tolerability of Repeated Doses of an Investigational New Drug in Patients With Cancer and Cachexia.

NCT04299048

TERMINATED Phase 3

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

NCT04218084

TERMINATED Phase 1

Study of Immunotherapy (Sasanlimab) in Combination With Targeted Therapies in People With Advanced Non-small Cell Lung Cancer (NSCLC) (Landscape 1011 Study)

NCT04585815

COMPLETED

Effectiveness And Safety Of Oral Anticoagulants Among Obese Patients With Non-Valvular A-Fib In VA Patients With Medicare

NCT04681482

COMPLETED Phase 3

Randomized Trial in Adult Participants With Acute Migraines

NCT04571060

COMPLETED Phase 1

Single Ascending Dose Study of Intravenous Infusion of PF 07304814 in Healthy Adult Participants

NCT04627532

COMPLETED Phase 1

Bioavailability Study of Naloxone 5 Milligrams (mg) Intramuscular (IM) Autoinjector

NCT05264493

COMPLETED Phase 1

Clinical Study to Evaluate Pharmacokinetics and Safety of PF-06700841 After Single and Multiple Oral Doses as Modified Release Formulations

NCT04580797

COMPLETED Phase 4

Study of Lorlatinib In People With ALK-positive Non-small Cell Lung Cancer

NCT04362072

COMPLETED Phase 2

A Dose-Ranging Study With Vupanorsen (TRANSLATE-TIMI 70)

NCT04516291

COMPLETED Phase 1

Bioequivalence Study of PF-06651600 Capsules Relative to Tablets and Estimation of Food Effect on Capsules.

NCT04390776

TERMINATED Phase 1

Study of PF-07265807 in Participants With Metastatic Solid Tumors.

NCT04458259

COMPLETED Phase 1

A Study to Determine the Bioequivalence of Two Doses of Tafamidis

NCT04575116

TERMINATED Phase 2

Placebo-controlled Safety Study OF Ritlecitinib (PF-06651600) IN Adults With Alopecia Areata

NCT04517864

COMPLETED Phase 1

First-In-Human Study To Evaluate Safety, Tolerability, And Pharmacokinetics Following Single Ascending And Multiple Ascending Doses of PF-07304814 In Hospitalized Participants With COVID-19.

NCT04535167

COMPLETED Phase 3

Safety and Immunogenicity of 20vPnC Coadministered With SIIV in Adults ≥65 Years of Age

NCT04526574

COMPLETED Phase 1

Effect Of Multiple Dose PF-06700841 On The Pharmacokinetics Of Single Dose Oral Contraceptive Steroids

NCT04267250

COMPLETED Phase 2

Study of Pharmacodynamics and Safety of DGAT2i and ACCi Coadministered in Participants With Sponsor-defined Presumed Non Alcoholic Steatohepatitis

NCT04399538

COMPLETED Phase 1

Pharmacokinetic Study of Aztreonam-Avibactam in Severe Renal Impairment

NCT04486625

COMPLETED Phase 2

Safety and Efficacy of Oral Etrasimod in Adult Participants With Moderate-to-Severe Alopecia Areata

NCT04556734

COMPLETED Phase 1

Renal Impairment Study of PF-06700841

NCT04260464

COMPLETED

Patient Characteristics, Treatment Patterns, and Clinical Outcomes in Patients Diagnosed With HR+/HER2 Advanced/Metastatic Breast Cancer on Palbociclib + Aromatase Inhibitor (AI) Combination Therapy

NCT04394247

COMPLETED Phase 2

Long-term Safety Study of BHV-3500 (Zavegepant*) for the Acute Treatment of Migraine

NCT04408794

COMPLETED Phase 2

Study Evaluating Efficacy and Safety of Crisaborole in Adults With Stasis Dermatitis

NCT04091087

COMPLETED Phase 2

Study Evaluating the Mechanism of Action of PF-04965842 Monotherapy for Moderate-to-severe Atopic Dermatitis

NCT03915496

COMPLETED Phase 3

MenABCWY Noninferiority Study in Healthy Participants ≥10 to <26 Years of Age

NCT04440163

COMPLETED Phase 2

A Trial to Describe the Safety and Immunogenicity of MenABCWY When Administered on 2 Schedules

NCT04440176

COMPLETED Phase 1

A Study In Adult Healthy Volunteers To Asses Once Daily (QD) Dosing With The Selected Age-Appropriate Modified Release (MR) Formulations

NCT04338711

COMPLETED Phase 3

A Trial to Evaluate the Efficacy and Safety of RSVpreF in Infants Born to Women Vaccinated During Pregnancy.

NCT04424316

COMPLETED Phase 2

Metabolic Interventions to Resolve Non-alcoholic Steatohepatitis (NASH) With Fibrosis (MIRNA)

NCT04321031

COMPLETED Phase 1

A Study TO Evaluate THE Effect OF PF-06651600 ON Pharmacokinetics OF Single Dose Sumatriptan IN Healthy Participants.

NCT04355845

COMPLETED Phase 3

Study of Abrocitinib Compared With Dupilumab in Adults With Moderate to Severe Atopic Dermatitis on Background Topical Therapy

NCT04345367

COMPLETED Phase 3

20-valent Pneumococcal Conjugate Vaccine Safety Study in Healthy Infants

NCT04379713

COMPLETED Phase 3

20-valent Pneumococcal Conjugate Vaccine Safety and Immunogenicity Study of a 4-Dose Series in Healthy Infants

NCT04382326

TERMINATED Phase 2

Safety and Efficacy Trial of Zavegepant* Intranasal for Hospitalized Patients With COVID-19 Requiring Supplemental Oxygen

NCT04346615

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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.