Pfizer

1,845 total trials 106 currently recruiting 1335 completed

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.

Trial Pipeline

1,845 total, page 7 of 37

COMPLETED Phase 1

Relative Bioavailability Study of Nirmatrelvir/Ritonavir 4 Different Fixed Dose Combination Tablets Relative to the Commercial Tablets in Healthy Participants

NCT05525910

COMPLETED

A Study to Compare Health Care Costs Between Apixaban and Low Molecular Weight Heparin in Patients With Venous Thromboembolism and Cancer

NCT05643885

COMPLETED

Enzalutamide vs. Abiraterone in Chemotherapy-naïve Metastatic Castration-resistant Prostate Cancer (mCRPC)

NCT05520138

TERMINATED Phase 1

A Clinical Trial of the Study Medicine (PF-07081532) in People With Diabetes and Kidney Dysfunction

NCT05510245

COMPLETED Phase 1

A Study to Learn About the Study Medication, Zavegepant, in Healthy Volunteers

NCT06137703

TERMINATED

A Study to Evaluate AAV9 Neutralizing Antibody Seroconversion in Household Contacts.

NCT04543357

COMPLETED Phase 1

A Preliminary Study to Evaluate PF-07264660 in Healthy Participants

NCT05496738

COMPLETED Phase 1

Safety and Immunogenicity of Pneumococcal Conjugate Formulations in Healthy Adults 18 Through 49 Years of Age

NCT05489328

COMPLETED Phase 2

Trial to Evaluate the Safety, Tolerability, and Immunogenicity of A Multivalent Group B Streptococcus Vaccine When Administered Concomitantly With Tdap in Healthy Nonpregnant Women

NCT04766086

TERMINATED Phase 2

Study of Fordadistrogene Movaparvovec in Early Stage Duchenne Muscular Dystrophy

NCT05429372

COMPLETED Phase 2

A Study to Learn About the Study Medicines (Nirmatrelvir Plus Ritonavir) in People Aged 12 Years or Older With COVID-19 and a Compromised Immune System

NCT05438602

COMPLETED Phase 1

A Study to Understand How the Study Medicine (PF-07081532) is Processed in People With Liver Dysfunction

NCT05478603

TERMINATED Phase 1

Study of Maplirpacept (PF-07901801) in Combination With PLD in Patients With Platinum-Resistant Ovarian Cancer

NCT05261490

COMPLETED Phase 1

A Relative Bioavailability Study Evaluating Two New Encorafenib Formulations

NCT05446142

TERMINATED Phase 3

Voxelotor Neurocognitive Function Study

NCT05228834

TERMINATED Phase 1

A Study to Learn About the Study Medicine (Nirmatrelvir Plus Ritonavir) in Pregnant Women With COVID-19

NCT05386472

COMPLETED

A Study to Learn About the First and Later Lines of Medicines in Treating People With Metastatic Renal Cell Carcinoma (mRCC).

NCT05858749

COMPLETED Phase 1

A Study to Understand the Effect of Low-Fat and High-Fat Meals on the Medicine Called PF-07284890 in Healthy Adults

NCT05349864

COMPLETED Phase 1

A Study to Investigate the Effect of Tablet Formulation and Food on PF-07104091 in Healthy Participants

NCT05431153

COMPLETED Phase 1

A Study to Learn How the Study Medicine Called PF-07275315 Works in Healthy People

NCT05411588

COMPLETED Phase 1

A Study to Learn About Effect of Sisunatovir in Healthy Adult Male Participants

NCT05873764

TERMINATED Phase 3

Safety and Efficacy of BHV-3000 (Rimegepant) Orally Disintegrating Tablet for Acute Treatment of Temporomandibular Disorders

NCT05262517

COMPLETED Phase 1

A Study To Learn About The Study Vaccine (Called Self-Amplifying Ribonucleic Acid (RNA)) For The Prevention of Influenza

NCT05227001

COMPLETED Phase 1

A Study to Learn About the Study Medicine (Called Lorlatinib) in People With Liver Dysfunction

NCT05224609

COMPLETED Phase 1

A Study To Evaluate The Pharmacokinetics, Excretion, Mass Balance and Metabolism of PF-07265803

NCT05286281

TERMINATED Phase 3

A Study to Evaluate the Long-term Safety of Inclacumab Administered to Participants With Sickle Cell Disease

NCT05348915

COMPLETED Phase 4

Safety and Tolerability Study of Daily Dosing Rimegepant in Episodic Migraine Prevention

NCT05207865

COMPLETED Phase 1

Relative Bioavailability Study of PF-07321332/Ritonavir Oral Powder Relative to the Commercial Tablets in Healthy Participants

NCT05263921

COMPLETED Phase 4

Efficacy and Safety Study of Rimegepant in Episodic Migraine Prevention With Multiple Dosing Regimens

NCT05217927

COMPLETED Phase 1

Relative Bioavailability Study of 4 Different Formulations of PF-07321332 Relative to the Commercial Tablet Formulation

NCT05263895

TERMINATED Phase 1

PF-07265028 As Single Agent And In Combination With Sasanlimab in Advanced or Metastatic Solid Tumors

NCT05233436

COMPLETED Phase 3

Safety and Efficacy of BHV-3000 (Rimegepant) Orally Disintegrating Tablet for the Acute Treatment of Chronic Rhinosinusitis

NCT05248997

COMPLETED

A Study to Learn About Sickle Cell Disease In Adult Patients

NCT05407805

COMPLETED Phase 1

Pharmacokinetic Comparability Study in Healthy Participants - PF-06881894 On-Body Injector Relative to Prefilled Syringe

NCT05194579

COMPLETED Phase 1

A First-in-human Study of Multiple Doses of Topically Administered PF-07295324 and PF-07259955

NCT05206604

TERMINATED

Oxbryta® Product Registry An Observational Study Designed to Evaluate the Effect of Oxbryta in Individuals With SCD

NCT04930445

COMPLETED

Comparative Effectiveness of Targeted Therapies in BRAF Positive Metastatic Melanoma in the US

NCT05260684

TERMINATED Phase 2

Protonix Treatment of Maintenance of Healing in Pediatric Participants Aged 1-11 Years and 12-17 Years

NCT04821310

TERMINATED Phase 2

A Study to Assess the Hemodynamic Effects, Safety, Tolerability, and Pharmacokinetics of Intravenous APD418 in Adult Participants With Heart Failure With Reduced Ejection Fraction

NCT05139615

TERMINATED Phase 2

Continuation Study of Long-term Safety, Tolerability, Pharmacokinetics and Efficacy of Recifercept in Achondroplasia

NCT05116046

COMPLETED Phase 1

Study of Multiple Oral Doses of PF-07081532 in Adult Participants With Type 2 Diabetes Mellitus

NCT05158244

COMPLETED Phase 2

An Extension Study for Participants Who Have Completed the Treatment Period of a Qualifying Parent Study

NCT05192200

COMPLETED

Treatment Patterns and Clinical Outcomes Among Talazoparib-Treated Adults With HER2-Negative mBC With gBRCA1/2m

NCT05141708

TERMINATED Phase 3

A Study of a Single Dose of Inclacumab to Reduce Re-admission in Participants With Sickle Cell Disease and Recurrent Vaso-occlusive Crises

NCT04927247

COMPLETED

A Study to Learn About the Study Medicine (Called Tofacitinib) in People With Psoriatic Arthritis

NCT05195814

COMPLETED Phase 1

Food Effect Study to Evaluate the Effect of High-Fat Meal on the Relative Bioavailability of PF-07321332 Boosted With Ritonavir in Healthy Adult Participants

NCT05129475

TERMINATED Phase 2

A Study to Assess the Effect of Oral Temanogrel on Digital Blood Flow in Adult Participants With Raynaud's Phenomenon Secondary to Systemic Sclerosis

NCT04915950

COMPLETED Phase 1

Study to Evaluate the Effect of Multiple-Dose Ritlecitinib on the Pharmacokinetics (PK) of Tolbutamide

NCT05097716

COMPLETED Phase 1

Study TO Evaluate THE Effect OF PF-06882961 ON Single Dose Atorvastatin, Medazolam AND Oralcontraceptive Pharmacokinetics IN Healthy Adult Participants

NCT05093205

COMPLETED Phase 1

A Target Occupancy Study With Ritlecitinib.

NCT05128058

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Phase Distribution

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

What the Pipeline for Pfizer Shows

According to the ClinicalTrials.gov registry, Pfizer is linked to 1,845 US clinical trials across every stage of research activity. Of those, 106 studies are currently recruiting, about 6% of the sponsor's indexed portfolio, and 1,335 are already marked complete, representing roughly 72% of the total.

The phase mix for Pfizer reports 504 late-stage studies (Phase 3 and Phase 4 combined) and 1,173 earlier-phase studies (Phase 1 and Phase 2).

The top therapeutic focus area indexed for Pfizer is Healthy with 44 linked trials, and 9 other condition areas appear in the top list above.

How to read these pipeline numbers

Recruiting share is one of the more practical signals here: it reflects how much of a sponsor's research is presently open to new participants, while the completed share indicates the depth of finished work that has already contributed registry results. Both counts come directly from the public ClinicalTrials.gov dataset and are refreshed on the registry side; this page mirrors the latest data pull without altering it.

A portfolio weighted toward Phase 3 usually reflects an organization advancing candidates toward regulatory review, where the research centers on comparative efficacy and broader safety across larger populations. A heavier Phase 1 and Phase 2 tilt generally indicates exploratory work, safety, dosing, and early signal detection, and is common among research-forward sponsors that seed many early programs. Phase 4 entries, when present, track interventions already in real-world use and typically focus on long-term safety, effectiveness across subgroups, or formulation comparisons.

That distribution is a quick read of where the organization concentrates its research attention; it does not imply product availability, market share, or any clinical endorsement. All numbers on this page come from ClinicalTrials.gov maintained by the National Library of Medicine, and counts can shift as new studies are registered or existing ones update their status. This information is provided for reference and educational purposes only, not as medical, investment, or regulatory advice, verify current details directly with ClinicalTrials.gov before relying on any figure here.

Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainTrial

Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This page aggregates every registered trial from this sponsor, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.