Pfizer
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 2 of 37
A Study to Learn About a Vaccine Against E Coli in Healthy Adults
NCT07122986
A Study to Learn About the Study Medicine Called PF-07248144 in Combination With Fulvestrant in People With HR-positive, HER2-negative Advanced or Metastatic Breast Cancer Who Progressed After a Prior Line of Treatment.
NCT07062965
A Study to Learn About Medicine Called Ritlecitinib in Children Aged Between 6 to 12 Years With Severe Alopecia Areata
NCT07029711
A Study of the Medicine Called Abrocitinib in Children 6 to Less Than 12 Years of Age With Moderate-to-Severe Eczema
NCT06807268
This is a Study to Learn About How the Combination of the Study Medicines Sigvotatug Vedotin Plus Pembrolizumab Works in People With Non-small Cell Lung Cancer With High Levels of PD-L1.
NCT06758401
A Study to Learn About How a New Pneumococcal Vaccine Works in Adults
NCT07086677
A Study to Learn About the Study Medicine Ibuzatrelvir in Adults With COVID-19 Who Are Severely Immunocompromised
NCT07013474
A Study of Disitamab Vedotin in Adults With HER2 Expressing Advanced Breast Cancer
NCT06966453
A Study to Learn About the Study Medicine Called PF-07328948 in Adults With Heart Failure (BRANCH-HF)
NCT06991257
A Study to Learn About the Study Medicine Called PF-07275315 in People With Moderate-To-Severe Asthma
NCT06977581
A Study to Learn About the Study Medicine Called Zavegepant (PF-07930207) in Children With a History of Migraine
NCT06995729
A Study to Learn About How Changing Therapy From Emicizumab to Marstacimab Affects People With the Severe Hemophilia A.
NCT06703606
Ocular Assessments in Patients Treated With Tivdak® in Recurrent or Metastatic Cervical Cancer
NCT06952660
A Phase 3 Study of Revaccination in Subsequent Pregnancies With Bivalent RSV Vaccine and Duration of Protection of a Single Dose
NCT06866405
A Study of 2 Doses of Ritlecitinib in People 12 Years of Age and Older With Alopecia Areata
NCT06873945
A Study to Learn About the Study Medicine Called Rimegepant in Women When Used for Intermittent Prevention of Menstrual Migraine
NCT06641466
A Study to Understand How the Study Medicine Dazukibart Works in People With Idiopathic Inflammatory Myopathies
NCT06698796
Study of PF-07220060 With Letrozole in Adults With HR-positive HER2-negative Breast Cancer Who Have Not Received Anticancer Treatment for Advanced/Metastatic Disease
NCT06760637
A Study to Learn About a Study Medicine Called Ibuzatrelvir in Adult and Adolescent Patients With COVID-19 Who Are Not Hospitalized But Are at Risk For Severe Disease
NCT06679140
A Study to Learn About the Study Medicine Called Rimegepant in Adolescents With Frequent Migraine
NCT06616194
FIH Study to Evaluate the Tolerability of PF-07832837 in Healthy Adults and Patients
NCT06564389
A Study to Learn How PF-06821497 (Mevrometostat) Works in Men With Metastatic Castration-resistant Prostate Cancer.
NCT06629779
A Study to Learn About the Investigational Medicine Called PF-06821497 (Mevrometostat) in Men With mCRPC Who Were Previously Treated With Abiraterone Acetate for Prostate Cancer (MEVPRO-1).
NCT06551324
A Study to Learn About the Study Medicine Aztreonam-Avibactam (ATM-AVI) in Infants and Newborns Admitted in Hospitals With Bacterial Infection (CHERISH)
NCT06462235
An Observational Study of Etrasimod in Adult Patients With Moderate to Severe Ulcerative Colitis
NCT06398626
Characterization And Clinical Outcomes of AA Patients Treated With Ritlecitinib
NCT06531109
A Study to Learn About the Study Medicine PF-07934040 When Given Alone or With Other Anti-cancer Therapies in People With Advanced Solid Tumors That Have a Genetic Mutation.
NCT06447662
A Study to Learn About the Effects of the Combination of Elranatamab (PF-06863135) and Iberdomide in Patients With Relapsed or Refractory Multiple Myeloma (MagnetisMM-30)
NCT06215118
MagnetisMM-32: A Study to Learn About the Study Medicine Called Elranatamab in People With Multiple Myeloma (MM) That Has Come Back After Taking Other Treatments (Including Prior Treatment With an Anti-CD38 Antibody and Lenalidomide)
NCT06152575
A 52-Week Study to Learn About the Safety and Effects of Ritlecitinib in Participants With Nonsegmental Vitiligo
NCT06163326
Elranatamab Post Trial Access Study for Participants With Multiple Myeloma (MM)
NCT06057402
A Study To Learn About Two Study Medicines (PF-07275315 And PF-07264660) In People Who Have Moderate To Severe Atopic Dermatitis
NCT05995964
A Study of How Safe Abrocitinib (CIBINQO) is in Pregnant Women and Their Offspring
NCT05721937
A Study to Understand How the Study Medicine (PF-06823859) Works in People With Active Idiopathic Inflammatory Myopathies [Dermatomyositis (DM) and Polymyositis (PM)]
NCT05895786
Study of 2 Medicines (Aztreonam and Avibactam) Compared to Best Available Therapy for Serious Gram-negative Infections
NCT05639647
Safety and Effectiveness of Giroctocogene Fitelparvovec or Fidanacogene Elaparvovec in Patients With Hemophilia A or B Respectively
NCT05568719
A Study to Evaluate Etrasimod Treatment in Adolescents With Ulcerative Colitis
NCT05287126
A Clinical Trial of Four Medicines (Elranatamab Plus Carfilzomib and Dexamethasone or Maplirpacept) in People With Relapsed Refractory Multiple Myeloma
NCT05675449
A Clinical Trial of Study Medicine (Marstacimab) in Pediatric Patients With Hemophilia A or Hemophilia B
NCT05611801
A Study to Learn About the Study Medicine Called PF-07799544 as Monotherapy or in Combination in People With Advanced Solid Tumors
NCT05538130
A Study to Learn About The COVID-19 (Study) Vaccine (Called COMIRNATY) in People That Are Less Than 21 Years Old.
NCT05295290
A Study to Learn About the Effects of the Combination of Elranatamab, Daratumumab and Lenalidomide Compared With Daratumumab, Bortezomib, Lenalidomide, and Dexamethasone in Patients With Newly Diagnosed Multiple Myeloma Who Are Not Candidates for Transplant
NCT05623020
A Study to Learn About How 20-Valent Pneumococcal Conjugate Vaccine Works in a Real-world Setting
NCT05452941
A Phase 2/3 Study in Adult and Adolescent Participants With SCD
NCT05431088
The FLOTILLA Study: Providing Continued Access to The Study Medicines Encorafenib and Binimetinib for Participants in Prior Clinical Trials
NCT05203172
A Study to Learn About the Study Medicine Called PF-07799933 in People With Advanced Solid Tumors With BRAF Alterations.
NCT05355701
EPIC-Peds: A Study to Learn About the Study Medicine Called PF-07321332 (Nirmatrelvir)/Ritonavir in Patients Under 18 Years of Age With COVID-19 That Are Not Hospitalized But Are at Risk for Severe Disease
NCT05261139
Efficacy and Safety Study of Rimegepant for the Preventative Treatment of Migraine in Pediatric Subjects
NCT05156398
Safety and Efficacy Study of PF-06835375 in Primary Immune Thrombocytopenia
NCT05070845
Open-Label Extension Study of Marstacimab in Hemophilia Participants With or Without Inhibitors
NCT05145127
Phase Distribution
| Phase | Trial count |
|---|---|
| Phase 1 | 703 |
| Phase 2 | 470 |
| Phase 3 | 411 |
| Phase 4 | 93 |
Therapeutic Areas
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.
Read our methodology - how this data is sourced, computed, and verified.
Related
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.