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 12 of 37

COMPLETED Phase 3

Efficacy and Safety of Tofacitinib in Subjects With Active Ankylosing Spondylitis (AS)

NCT03502616

TERMINATED Phase 3

Study to Assess the Effect of Long-term Treatment With Voxelotor in Participants Who Have Completed Treatment in Study GBT440-031

NCT03573882

TERMINATED Phase 2

A Study to Evaluate the Safety and Immunogenicity of an Adjuvanted RSV Vaccine in Healthy Older Adults

NCT03572062

TERMINATED Phase 2

Study to Evaluate the Safety and Immunogenicity of a Multivalent Pneumococcal Vaccine Given With Prevnar 13 in Healthy Infants

NCT03550313

COMPLETED Phase 2

PF-06741086 Long-term Treatment in Severe Hemophilia

NCT03363321

COMPLETED

Comparative Analysis of Outcomes Among Patients Initiating Xeljanz in Combination With Oral MTX Who Withdraw MTX Versus Continue MTX

NCT03975790

COMPLETED Phase 1

Glasdegib Renal Impairment Study

NCT03596567

TERMINATED Phase 1

A Clinical Trial to Learn About the Study Medicine Called Maplirpacept (PF-07901801), Alone and When Used in Combination With Other Medicines to Treat Participants With Advanced Hematological Malignancies, Including Lymphoma, Leukemia and Multiple Myeloma

NCT03530683

COMPLETED Phase 3

A Safety, Efficacy And Pharmacokinetics Study Of Tofacitinib In Pediatric Patients With sJIA

NCT03000439

TERMINATED Phase 2

A Study of Avelumab in Combination With Axitinib In Non-Small Cell Lung Cancer (NSCLC) or Urothelial Cancer (Javelin Medley VEGF)

NCT03472560

COMPLETED Phase 1

A Single Dose Crossover Study In Healthy Subjects To Evaluate Different Formulations Of PF-06882961

NCT03492697

TERMINATED Phase 4

A Study of Crisaborole Ointment 2%; Crisaborole Vehicle; TCS and TCI in Subjects Aged ≥ 2 Years, With Mild-moderate AD

NCT03539601

COMPLETED Phase 3

A Study Evaluating Intensive Chemotherapy With or Without Glasdegib or Azacitidine With or Without Glasdegib In Patients With Previously Untreated Acute Myeloid Leukemia

NCT03416179

COMPLETED Phase 1

Single-dose Study of [14C]PF-05221304 Metabolism and Excretion in Healthy Adult Male Subjects

NCT03448172

COMPLETED Phase 2

A Study to Describe the Safety and Immunogenicity of a RSV Vaccine in Healthy Adults

NCT03529773

TERMINATED Phase 3

A Study of ARRY-371797 (PF-07265803) in Patients With Symptomatic Dilated Cardiomyopathy Due to a Lamin A/C Gene Mutation

NCT03439514

COMPLETED Phase 2

Trial to Evaluate the Safety and Immunogenicity of a Multivalent Pneumococcal Vaccine in Healthy Infants

NCT03512288

COMPLETED Phase 3

A Study to Determine the Efficacy, Safety and Tolerability of Aztreonam-Avibactam (ATM-AVI) ± Metronidazole (MTZ) Versus Meropenem (MER) ± Colistin (COL) for the Treatment of Serious Infections Due to Gram Negative Bacteria.

NCT03329092

COMPLETED Phase 3

Study to Evaluate Efficacy and Safety of PF-04965842 With or Without Topical Medications in Subjects Aged 12 Years and Older With Moderate to Severe Atopic Dermatitis

NCT03422822

TERMINATED Phase 1

A Study of PF-06873600 in People With Cancer

NCT03519178

COMPLETED

Treatment AND Monitoring Patterns AND Clinical Outcomes IN Patients Receiving Palbociclib Combination Treatment (with AI OR Fulvestrant) FOR Hr+/her2- A/mbc IN A Community Oncology Setting.

NCT04498481

COMPLETED Phase 3

Trial in Adult Subjects With Acute Migraines

NCT03461757

COMPLETED

Observational, Real World Study Of Inflectra In Patients With Inflammatory Bowel Disease

NCT03801928

COMPLETED Phase 2

Study To Evaluate The Efficacy And Safety Of Oral PF-06651600 And PF-06700841 In Subjects With Moderate To Severe Crohn's Disease

NCT03395184

COMPLETED Phase 1

A Study Comparing The Effects Of Epoetin Hospira Single-Dose Vial (SDV) And Multi-Dose Vial (MDV) When Administered Subcutaneously To Normal Healthy Subjects

NCT03398473

COMPLETED Phase 2

A Study In Adults With Moderate To Severe Dermatomyositis

NCT03181893

TERMINATED Phase 1

A Study to Evaluate the Safety and Tolerability of PF-06939926 Gene Therapy in Duchenne Muscular Dystrophy

NCT03362502

COMPLETED Phase 4

A Study of Crisaborole Ointment 2% in Children Aged 3-24 Months With Mild to Moderate Atopic Dermatitis

NCT03356977

COMPLETED Phase 1

Pharmacokinetic Drug-drug Interaction Study of Encorafenib and Binimetinib on Probe Drugs in Patients With BRAF V600-mutant Melanoma or Other Advanced Solid Tumors

NCT03864042

TERMINATED Phase 1

Safety And Efficacy Study Of Avelumab Plus Chemotherapy With Or Without Other Anti-Cancer Immunotherapy Agents In Patients With Advanced Malignancies

NCT03317496

TERMINATED Phase 2

Efficacy, Safety and Tolerability of PF-06687234 as Add-on Therapy to Infliximab in Active UC Subjects Not in Remission.

NCT03269695

COMPLETED Phase 1

Study of PF-05221304 in Subjects With Varying Degrees of Hepatic Impairment

NCT03309202

COMPLETED Phase 3

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

NCT03349060

COMPLETED Phase 1

PF-06863135 As Single Agent And In Combination With Immunomodulatory Agents In Relapse/Refractory Multiple Myeloma

NCT03269136

COMPLETED Phase 1

Safety and Tolerability Study Of PF-06835375 In Subjects With Seropositive Systemic Lupus Erythematosus Or Rheumatoid Arthritis

NCT03334851

TERMINATED Phase 4

A Study of Tofacitinib in Patients With Ulcerative Colitis in Stable Remission

NCT03281304

COMPLETED Phase 1

A Study to Evaluate the Safety, Tolerability, and Pharmacokinetics of Repeat Doses of PF-06372865 in Healthy Subjects

NCT03351751

COMPLETED Phase 3

Protocol to Monitor the Neurological Development of Infants With Exposure in Utero From Birth to 15 Months in Tanezumab Clinical Studies

NCT03031938

TERMINATED Phase 1

PF-06804103 Dose Escalation in HER2 Positive and Negative (Negative Only in Part 2) Solid Tumors

NCT03284723

COMPLETED Phase 1

A Study to Assess Immune Response to Multiple Doses of PF-06881894 or US-Approved Neulasta in Healthy Volunteers

NCT03273842

COMPLETED Phase 3

A Dental Pain Study Comparing The Analgesic Efficacy Of Ibuprofen/Caffeine

NCT02863575

TERMINATED Phase 1

Javelin Parp Medley: Avelumab Plus Talazoparib In Locally Advanced Or Metastatic Solid Tumors

NCT03330405

COMPLETED Phase 2

Study of Binimetinib + Nivolumab Plus or Minus Ipilimumab in Patients With Previously Treated Microsatellite-stable (MSS) Metastatic Colorectal Cancer With RAS Mutation

NCT03271047

COMPLETED Phase 1

First In Human, Single Escalating Oral Dose Study Of PF-06882961 In Healthy Adult Subjects

NCT03309241

COMPLETED Phase 2

A Trial To Evaluate A Multivalent Pneumococcal Conjugate Vaccine In Healthy Adults 50-85 Years Of Age

NCT03313050

COMPLETED Phase 2

Trial to Evaluate the Safety and Immunogenicity of a Multivalent Pneumococcal Conjugate Vaccine in Adults 60 Through 64 Years of Age

NCT03313037

COMPLETED Phase 2

6-week Safety and PD Study in Adults With NAFLD

NCT03256526

COMPLETED Phase 1

PK Study in Adult Healthy Volunteers to Assess QD Dosing With the Selected Age-appropriate MR Formulations

NCT03112148

COMPLETED Phase 1

Glasdegib Absolute Bioavailability Study

NCT03270878

TERMINATED

Understanding Hemophilia A and B Drug Dosage Administration Patterns

NCT03248141

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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.