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 11 of 37

COMPLETED Phase 2

Dose Ranging Study To Assess Efficacy, Safety and Tolerability Of PF-06700841 Topical Cream In Psoriasis

NCT03850483

COMPLETED Phase 1

Evaluate Severe Hepatic Impairment on Dacomitinib PK

NCT03865446

COMPLETED Phase 3

Clostridium Difficile Vaccine 2-Dose Versus 3-Dose Study

NCT03918629

COMPLETED Phase 2

Acute Treatment Trial in Adult Subjects With Migraines

NCT03872453

TERMINATED Phase 1

A Dose Escalation Study Of PF-06939999 In Participants With Advanced Or Metastatic Solid Tumors

NCT03854227

COMPLETED Phase 1

Open Label, 2-period Study, TO Compare Bio-availability OF 2 Different Formulations OF PF-05221304 IN Healthy Adults

NCT03871439

COMPLETED Phase 3

JAK1 Inhibitor With Medicated Topical Therapy in Adolescents With Atopic Dermatitis

NCT03796676

COMPLETED Phase 3

Trial to Evaluate the Safety and Immunogenicity of 3 Lots of 20-valent Pneumococcal Conjugate Vaccine in Pneumococcal Vaccine-Naïve Adults

NCT03828617

TERMINATED NA

Treatment Resistance Following Anti-cancer Therapies

NCT04436120

COMPLETED Phase 3

Trial to Evaluate the Safety and Immunogenicity of a 20-Valent Pneumococcal Vaccine in Adults 65 Years of Age or Older With Prior Pneumococcal Vaccination

NCT03835975

COMPLETED Phase 3

Patient Perception of Treatment Burden in Weekly Versus Daily Growth Hormone Injections in Children With GHD

NCT03831880

COMPLETED Phase 1

A Drug-drug Interaction Study Between PF-06650833 AND PF-06651600 Following Multiple Doses IN Healthy Participants

NCT03827668

COMPLETED

Real-world Treatment Patterns and Effectiveness of Palbociclib and AI Therapy

NCT04176354

COMPLETED Phase 1

A Bioequivalence Study of Testosterone Cypionate in Hypogonadal Males

NCT03792477

COMPLETED Phase 2

Trial To Evaluate The Safety, Tolerability, And Immunogenicity Of A Multivalent Group B Streptococcus Vaccine In Healthy Nonpregnant Women And Pregnant Women And Their Infants

NCT03765073

COMPLETED Phase 2

A Study To Assess Pharmacodynamics, Safety And Tolerability Of PF-05221304 And PF-06865571 Co-Administered For 6 Weeks In Adults With Non-Alcoholic Fatty Liver Disease.

NCT03776175

COMPLETED

RW Treatment Patterns and Outcomes in Postmenopausal HR+/HER2- mBC Patients Treated With Palbociclib Plus Letrozole as Initial Endocrine Therapy at Community Oncology Practices in the U.S.

NCT04460898

COMPLETED

Comparative Analysis of Outcomes Among Patients Treated With Xeljanz vs Biologics

NCT03964649

TERMINATED Phase 3

Actual Use and Compliance Study Of Ibuprofen 600 Mg Immediate Release/Extended Release Tablets In At-Risk OTC Consumers

NCT03722238

COMPLETED Phase 2

Immunogenicity and Safety Study of a Vaccine Against Lyme Borreliosis, in Healthy Adults Aged 18 to 65 Years. Randomized, Controlled, Observer-blind Phase 2 Study.

NCT03769194

COMPLETED Phase 3

Trial to Evaluate the Safety and Immunogenicity of a 20-valent Pneumococcal Conjugate Vaccine in Pneumococcal Vaccine-naïve Adults

NCT03760146

COMPLETED Phase 1

Estimation OF THE Effect OF Multiple Dose PF-06651600 ON THE Pharmacokinetics OF Single Dose Midazolam AND Efavirenz

NCT03762928

COMPLETED Phase 2

PF-06651600 for the Treatment of Alopecia Areata

NCT03732807

TERMINATED Phase 1

Vaccine-Based Immunotherapy Regimen For NSCLC and TNBC

NCT03674827

COMPLETED Phase 2

A Phase 2b Study To Evaluate The Efficacy And Safety Profile Of PF-06651600 And PF-06700841 In Active Non-segmental Vitiligo Subjects

NCT03715829

COMPLETED Phase 2

Efficacy and Safety Trial of Rimegepant for Migraine Prevention in Adults

NCT03732638

COMPLETED Phase 1

Study To Assess Local Tolerability of Crisaborole 2% Ointment and Vehicle Ointment In Healthy Participants Using Subject-reported Assessments and Objective Measurements

NCT03760042

COMPLETED Phase 1

A Study to Evaluate the Effect of Hepatic Impairment on the Pharmacokinetics of Glasdegib

NCT03627754

COMPLETED Phase 3

Study Evaluating Efficacy and Safety of PF-04965842 and Dupilumab in Adult Subjects With Moderate to Severe Atopic Dermatitis on Background Topical Therapy

NCT03720470

TERMINATED Phase 2

A Study to Evaluate PF-06730512 in Adults With Focal Segmental Glomerulosclerosis (FSGS)

NCT03448692

COMPLETED Phase 1

A Renal Impairment Study for PF-04965842

NCT03660241

TERMINATED Phase 1

PF-06952229 Treatment in Adult Patients With Advanced Solid Tumors

NCT03685591

COMPLETED Phase 1

A Hepatic Impairment Study for PF-04965842.

NCT03626415

COMPLETED

A Study To Compare The Effectiveness Of Tofacitinib 11 Mg Once A Day To Tofacitinib 5 Mg Twice A Day

NCT04267380

COMPLETED Phase 1

A Study to Determine the Effects of PF-04965842 on the Pharmacokinetics of Oral Contraceptive Steroids in Healthy Female Subjects

NCT03662516

COMPLETED Phase 1

A Study TO Estimate THE Effect OF PF-06651600 ON THE Pharmacokinetics (PK) OF Oral Contraceptive (OC)

NCT03608241

COMPLETED Phase 1

Trial to Evaluate the Safety and Immunogenicity of Multivalent Pneumococcal Vaccines in Japanese Adults 18 to 49 Years of Age

NCT03642847

TERMINATED Phase 2

Talazoparib For Neoadjuvant Treatment Of Germline BRCA1/2 Mutation Patients With Early Human Epidermal Growth Factor Receptor 2 Negative Breast Cancer

NCT03499353

COMPLETED Phase 1

Lorlatinib Renal Impairment Study

NCT03542305

TERMINATED Phase 1

A Study of Avelumab, Binimetinib and Talazoparib in Patients With Locally Advanced or Metastatic RAS-mutant Solid Tumors

NCT03637491

COMPLETED Phase 3

Evaluation Of Clostridium Difficile Vaccine Lot Consistency In Healthy Adults 65 To 85 Years Of Age

NCT03579459

COMPLETED Phase 1

Singe Dose, First in Human Study of PF- 06946860 in Healthy Adult Subjects

NCT03599063

COMPLETED Phase 3

A Study to Evaluate Prospective Efficacy and Safety Data of Current FIX Prophylaxis Replacement Therapy in Adult Hemophilia B Subjects (FIX:C≤2%) or Current FVIII Prophylaxis Replacement Therapy in Adult Hemophilia A Subjects (FVIII:C≤1%)

NCT03587116

TERMINATED Phase 3

Avelumab and Talazoparib in Untreated Advanced Ovarian Cancer (JAVELIN OVARIAN PARP 100)

NCT03642132

COMPLETED Phase 3

Study Evaluating Efficacy and Safety of PF-04965842 in Subjects Aged 12 Years And Older With Moderate to Severe Atopic Dermatitis

NCT03575871

COMPLETED Phase 1

4-Week, Multiple-dose, Dose-escalating Study In Patients With Type 2 Diabetes

NCT03538743

COMPLETED Phase 1

2-Week Study In People With Nonalcoholic Fatty Liver Disease

NCT03513588

TERMINATED Phase 2

Javelin BRCA/ATM: Avelumab Plus Talazoparib in Patients With BRCA or ATM Mutant Solid Tumors

NCT03565991

TERMINATED

Observational Study Investigating Clinical & Anthropometric Characteristics of Children With Achondroplasia.

NCT03794609

COMPLETED Phase 3

Study to Investigate Efficacy and Safety of PF-04965842 in Subjects Aged 12 Years and Over With Moderate to Severe Atopic Dermatitis With the Option of Rescue Treatment in Flaring Subjects

NCT03627767

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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.