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 28 of 37

COMPLETED Phase 1

A Study To Test The Impact Of PF- 00299804 On How The Body Handles Dextromethorphan In Cancer Patients

NCT00728468

COMPLETED Phase 4

Randomized Study Comparing the Efficacy and Safety of Varenicline Tartrate to Placebo in Smoking Cessation When Subjects Are Allowed to Set Their Own Quit Date

NCT00691483

COMPLETED Phase 1

Drug Interaction Study Between Raltegravir And UK-453,061

NCT00784420

COMPLETED Phase 4

A Study To Assess The Anidulafungin And Voriconazole Concentration In Lung Following Intravenous Administration In Healthy Subjects

NCT00940017

COMPLETED Phase 1

A Single Dose Study Investigating The Elimination Of PD-0332334 In Patients Receiving Regular Hemodialysis

NCT00730145

COMPLETED Phase 1

Study Of Dalbavancin Drug Levels Achieved In Hospitalized Adolescents Who Are Receiving Antibiotic Therapy For Bacterial Infections

NCT00678106

COMPLETED Phase 4

Assessing Neuropsychiatric Symptoms Including Depression, Anxiety, Irritability, and Suicidal Thoughts or Behavior in Subjects Quitting Smoking on Varenicline Tartrate or Placebo

NCT00749944

TERMINATED Phase 1

Study Of CP-751,871 In Combination With Sunitinib In Patients With Advanced Solid Tumors

NCT00729833

COMPLETED Phase 2

Randomized, Double-Blind, Placebo-Controlled, Phase 2 Study In Subjects With Osteoarthritic Pain Of The Knee

NCT00689273

COMPLETED Phase 2

A Study To Assess Esreboxetine's Effect On Concentration, Memory, Decision Making And Problem Solving In Patients With Fibromyalgia.

NCT00752505

COMPLETED Phase 2

An Effectiveness And Safety Study Of PD 0299685 For The Treatment Of Symptoms Associated With Interstitial Cystitis

NCT00739739

COMPLETED Phase 1

Single Dose Escalation Study of PF-04360365 In Subjects With Mild To Moderate Alzheimer's Disease

NCT00733642

COMPLETED Phase 2

A Dose Ranging Study Of PF-00868554 In Combination With PEGASYS And COPEGUS In Patients With Chronic Hepatitis C Genotype 1 Infection

NCT00720434

COMPLETED Phase 2

The Effects Of Fx-1006A On Transthyretin Stabilization And Clinical Outcome Measures In Patients With V122I Or Wild-Type TTR Amyloid Cardiomyopathy

NCT00694161

COMPLETED

Follow-Up Study for Exubera

NCT00734591

COMPLETED Phase 2

Extension Study Of Subjects From Study A3921030 For The Prevention Of Acute Rejection In Kidney Transplant Patients

NCT00658359

TERMINATED Phase 1

A Study of PF-04217903 in Patients With Advanced Cancer

NCT00706355

TERMINATED Phase 4

Study to Test the Combination of Voriconazole and Anidulafungin in Patients Who Have, or Are Thought to Have, Invasive Aspergillosis and Who Are Unable to Take a Common Antifungal Therapy (Polyene)

NCT00620074

TERMINATED

Nonrestorative Sleep RSQ (Restorative Sleep Questionnaire) Development-- Methodology Study

NCT00705601

TERMINATED Phase 1

A Phase I, Multiple Dose Study of PF-04447943 in Healthy Elderly Volunteers

NCT00736528

TERMINATED Phase 1

A Single Dose Study Investigating the Elimination as Well as the Tolerability of PD 0332334 in Healthy Subjects as Compared to Patients With Impaired Kidney Function.

NCT00721422

COMPLETED Phase 2

PF-04191834 Single Dose Bronchodilatory Study In Asthma.

NCT00723021

COMPLETED Phase 1

Effect Of Treatment With Oral Zolpidem On Polysomnography And Actigraphy Measures In Healthy Volunteers

NCT00716521

COMPLETED Phase 1

Study of Controlled Release Formulations of CE-224,535 Against the Immediate Release Formulation in Normal Volunteers

NCT00782600

COMPLETED Phase 3

Anidulafungin Plus Voriconazole Versus Voriconazole For The Treatment Of Invasive Aspergillosis

NCT00531479

COMPLETED Phase 2

Effectiveness and Safety of 3 Dosing Regimens of CP-690,550 to Placebo in Subjects With Moderate to Severe Chronic Plaque Psoriasis

NCT00678210

COMPLETED Phase 1

An Investigation Of The Effects Of Food On The Absorption Of A Varenicline Controlled Release Formulation

NCT00731562

COMPLETED Phase 1

Phase 1 Pharmacokinetic Study Of CP-945598 In Patients With NASH

NCT00706537

TERMINATED Phase 3

Sunitinib Plus Prednisone In Patients With Metastatic Castration-Resistant Prostate Cancer After Failure Of Docetaxel Chemotherapy

NCT00676650

TERMINATED Phase 3

Study Of Sunitinib Malate Versus Sorafenib In Patients With Inoperable Liver Cancer

NCT00699374

COMPLETED Phase 2

A Multiple-Dose Study To Evaluate The Pharmacokinetics And Safety Of Voriconazole In Immunocompromised Adolescents

NCT00556998

COMPLETED Phase 3

Study Evaluating The Safety And Efficacy Of Desvenlafaxine Succinate For Vasomotor Symptoms In Menopausal Women

NCT00683800

COMPLETED Phase 3

Plant Cell Expressed Recombinant Human Glucocerebrosidase Extension Trial

NCT00705939

COMPLETED Phase 2

The Effects of Fx-1006A on Transthyretin Stabilization and Clinical Outcome Measures in Patients With Non-V30M Transthyretin Amyloidosis

NCT00630864

TERMINATED Phase 3

Study Evaluating The Efficacy And Safety Of Bapineuzumab In Alzheimer Disease Patients

NCT00667810

COMPLETED Phase 1

A Study To Investigate The Absorption, Metabolism And Excretion Of [14C] PD 0200390 In Six Healthy Male Volunteers

NCT00722306

COMPLETED Phase 3

Study Evaluating Safety of 13-Valent Pneumococcal Conjugate Vaccine in Healthy Elderly Subjects

NCT00500266

COMPLETED Phase 1

Evaluation Of Hepatic Impairment On AG-013736 Pharmacokinetics

NCT00692341

COMPLETED Phase 1

A Phase I, Healthy Volunteer Positron Emission Tomography Study

NCT00730990

COMPLETED Phase 3

Smoking Cessation Study for Patients With Schizophrenia or Schizoaffective Disorder

NCT00644969

TERMINATED Phase 3

Open Label Extension Study of [S,S]-Reboxetine in Patients With Fibromyalgia

NCT00754221

TERMINATED Phase 3

Trial Of CP-751, 871 And Erlotinib In Refractory Lung Cancer

NCT00673049

TERMINATED Phase 3

A 10-week Study Evaluating the Efficacy and Safety of PD 0332334 for the Treatment of Generalized Anxiety Disorder (3)

NCT00658762

TERMINATED Phase 3

A 10-week Study Evaluating the Efficacy and Safety of PD 0332334 in Patients With Generalized Anxiety Disorder (2)

NCT00658372

COMPLETED Phase 2

PF-00299804 As A Single Agent, In Patients With Advanced Non-Small Cell Lung Cancer Who Have Failed Chemotherapy And Erlotinib

NCT00548093

COMPLETED Phase 2

A Study To Compare Pregabalin/PF-00489791 Combination Versus Pregabalin Alone In Post-Herpetic Neuralgia

NCT00599638

COMPLETED Phase 2

A Study of ARRY-371797 in Subjects Undergoing Third Molar Extraction

NCT00663767

COMPLETED Phase 2

Study of CE-224,535 A Twice Daily Pill To Control Rheumatoid Arthritis In Patients Who Have Not Totally Improved With Methotrexate

NCT00628095

COMPLETED Phase 1

Study Examining The Effect Of Hepatic Impairment On Safety, Toleration And How The Body Processes An Experimental Drug

NCT00645021

COMPLETED Phase 2

A Study Of AG-013736 (Axitinib) Or Bevacizumab (Avastin) In Combination With Paclitaxel And Carboplatin In Patients With Advanced Lung Cancer.

NCT00600821

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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.