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 4 of 37

ACTIVE NOT RECRUITING Phase 3

Continued Access Study for Participants Deriving Benefit in Pfizer-Sponsored Avelumab Parent Studies That Are Closing

NCT05059522

ACTIVE NOT RECRUITING Phase 3

Study to Evaluate the Efficacy, Immunogenicity, and Safety of RSVpreF in Adults.

NCT05035212

ACTIVE NOT RECRUITING Phase 3

Evaluation of Oral Tofacitinib in Children Aged 2 to 17 Years Old Suffering From Moderate to Severe Ulcerative Colitis

NCT04624230

ACTIVE NOT RECRUITING Phase 3

Study of Talazoparib With Enzalutamide in Men With DDR Gene Mutated mCSPC

NCT04821622

ACTIVE NOT RECRUITING Phase 2

MagnetisMM-3: Study Of Elranatamab (PF-06863135) Monotherapy in Participants With Multiple Myeloma Who Are Refractory to at Least One PI, One IMiD and One Anti-CD38 mAb

NCT04649359

ACTIVE NOT RECRUITING Phase 3

A Clinical Trial of Three Study Medicines (Encorafenib, Binimetinib, and Pembrolizumab) in Patients With Advanced or Metastatic Melanoma

NCT04657991

ACTIVE NOT RECRUITING Phase 3

A Study of Encorafenib Plus Cetuximab With or Without Chemotherapy in People With Previously Untreated Metastatic Colorectal Cancer

NCT04607421

ACTIVE NOT RECRUITING Phase 3

Study to Evaluate the Safety and Efficacy of PF-06939926 for the Treatment of Duchenne Muscular Dystrophy

NCT04281485

ACTIVE NOT RECRUITING Phase 2

Study to Test the Safety and Tolerability of PF-07220060 in Participants With Advance Solid Tumors

NCT04557449

ACTIVE NOT RECRUITING Phase 2

PF-07104091 as a Single Agent and in Combination Therapy

NCT04553133

ACTIVE NOT RECRUITING Phase 3

Study to Evaluate the Efficacy and Safety of PF-07055480 / Giroctocogene Fitelparvovec Gene Therapy in Moderately Severe to Severe Hemophilia A Adults

NCT04370054

ACTIVE NOT RECRUITING Phase 3

A Study of Sasanlimab in People With Non-muscle Invasive Bladder Cancer

NCT04165317

ACTIVE NOT RECRUITING Phase 3

An Extension Study for Treatment of Moderately to Severely Active Ulcerative Colitis

NCT03950232

ACTIVE NOT RECRUITING Phase 3

A Study to Evaluate the Efficacy and Safety of Factor IX Gene Therapy With PF-06838435 in Adult Males With Moderately Severe to Severe Hemophilia B

NCT03861273

ACTIVE NOT RECRUITING Phase 3

Long-Term PF-06651600 for the Treatment of Alopecia Areata

NCT04006457

ACTIVE NOT RECRUITING Phase 2

Study Of Palbociclib Combined With Chemotherapy In Pediatric Patients With Recurrent/Refractory Solid Tumors

NCT03709680

ACTIVE NOT RECRUITING Phase 3

Talazoparib + Enzalutamide vs. Enzalutamide Monotherapy in mCRPC

NCT03395197

ACTIVE NOT RECRUITING Phase 2

Long-term Safety and Efficacy Study and Dose-Escalation Substudy of PF 06838435 in Individuals With Hemophilia B

NCT03307980

ACTIVE NOT RECRUITING Phase 3

A Study Of Lorlatinib Versus Crizotinib In First Line Treatment Of Patients With ALK-Positive NSCLC

NCT03052608

ACTIVE NOT RECRUITING Phase 3

Safety and Efficacy Study of Enzalutamide Plus Leuprolide in Patients With Nonmetastatic Prostate Cancer (EMBARK)

NCT02319837

NOT YET RECRUITING Phase 3

Symbiotic-GYN-18: A Study to Learn About the Study Medicine Called PF-08634404 in Combination With Chemotherapy in Adult Participants With Advanced or Recurrent MMR-proficient Endometrial Cancer

NCT07578649

NOT YET RECRUITING Phase 1

A Study to Learn How the Study Medicine Called Atirmociclib is Handled by the Body in People With Normal Liver Function and Different Levels of Liver Disease

NCT07677358

COMPLETED Phase 1

Relative Bioavailability and Impact of Rabeprazole for PF-07799933, Food-Effect for PF-07799933 and PF-07799544

NCT07563894

COMPLETED

A Real-world Study of the First Treatment and Outcomes of Patients With Advanced or Metastatic Bladder Cancer

NCT07386847

COMPLETED Phase 1

A Study to Understand What the Body Does to the Study Medicine Called PF-07248144 When Taken by Healthy Adults

NCT07423286

COMPLETED Phase 1

A Study to Learn How Different Forms of the Study Medicine Called PF 08049820 Are Taken up Into the Bloodstream in Healthy Adults

NCT07172321

COMPLETED Phase 1

A Study to Compare Two Tablet Formulations of Study Medicine Atirmociclib in Healthy Participants

NCT07130097

TERMINATED Phase 1

A Study to Learn About the Study Medicine Called PF-07258669 in Older Adults Including Those at Risk of Malnutrition

NCT07086664

COMPLETED

A Study to Learn About Two Medicines (Apalutamide and Enzalutamide) in People With Metastatic Castration-sensitive Prostate Cancer (mCSPC)

NCT07086651

COMPLETED

A Study to Understand the Patients Confirmed to Have Advanced or Metastatic Breast Cancer and Receiving Palbociclib Treatment Using a Real-world Database

NCT06962969

COMPLETED

Real World-clinical Outcomes of Tucatinib, Trastuzumab, and Capecitabine Following Trastuzumab Deruxtecan (T-DXd) for the Treatment of HER2-positive Metastatic Breast Cancer.

NCT06961331

TERMINATED Phase 1

A Study to Learn About the Study Medicine Called PF-08046031 in Advanced Melanoma and Other Solid Tumors

NCT06799533

COMPLETED

A Study to Understand How the Use of Paxlovid Affected Healthcare Use in People With Pre-existing Conditions.

NCT07090486

COMPLETED Phase 3

A Study to Evaluate the Safety and Immunogenicity of RSVpreF Coadministered With Herpes Zoster Vaccine in Adults

NCT06890416

COMPLETED Phase 1

A Study to Learn if the Study Medicine Called Carbamazepine Changes How the Body Processes PF-07220060

NCT06897683

TERMINATED Phase 1

Study to Learn About How the Study Medicines Called PF-07976016 and PF-06882961 Are Taken Up by the Body, and if Either of Them Change How the Body Processes the Other Medicine in Otherwise Healthy Adults With Overweight or Obesity

NCT06910839

TERMINATED Phase 1

A Study to Learn How Different Amounts of the Study Medicine Called PF-07314470 Are Tolerated and Act in the Body in Healthy Adults

NCT06821750

COMPLETED Phase 1

A Study to Learn About How Different Forms of Study Medicine PF-07248144 Are Taken Up Into the Blood in Healthy Adults

NCT07117799

COMPLETED

A Study to Learn About the Medicine Called Ritlecitinib in Adults With Severe Alopecia Areata in Real-world Settings

NCT07200128

COMPLETED

A Study to Understand About the Study Medicine Palbociclib in Breast Cancer Patients After it is Out in the Japanese Market

NCT07096024

COMPLETED Phase 1

A Study to Learn if the Study Medicines Called Itraconazole and Cyclosporine Change How the Body Processes the Other Study Medicine Called Danuglipron in Healthy Adults.

NCT06541678

COMPLETED Phase 1

A Study to Learn if the Study Medicine Called Itraconazole and if Food Changes How the Body Processes the Other Study Medicine Called PF 07258669 in Older Adults or Healthy Adults

NCT06706869

COMPLETED Phase 2

A Study to Learn About the Study Medicine Called PF-07976016 in Adults With Obesity

NCT06717425

TERMINATED

Estimated Vaccine Effectiveness and Durability of Pfizer/BioNTech 2024-2025 COVID-19 Vaccine

NCT06703190

TERMINATED Phase 1

A Study to Learn About PF-07921585 Alone or With Other Anti-cancer Medicines in People With Cancer

NCT06580938

COMPLETED Phase 1

A Study to Learn How Different Forms of the Study Medicine Called PF-07976016 Are Taken Up Into the Blood in Healthy Adults

NCT06670170

COMPLETED

A US Study to Look at Loss of Work and Healthcare Costs for People Affected With Mild-to-moderate COVID 19 Who Have High Chances of the Disease Becoming Severe

NCT07072793

COMPLETED Phase 1

A Study to Learn If the Study Medicine Called Carbamazepine Changes How the Body Processes the Other Study Medicine Ibuzatrelvir in Healthy Adults

NCT06646042

COMPLETED

Comparison of Patient-reported Outcomes for Rimegepant and Triptans in the 2023 US National Health and Wellness Survey

NCT06680206

COMPLETED Phase 1

A Study to Learn How Different Amounts and Forms of the Study Medicine Called PF-06414300 Act in Healthy Adults

NCT06659250

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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.

Pfizer pipeline card: 1,845 registered trials from official public datasets.Report a data error.