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 37 of 37
Leflunomide in Treating Patients With Anaplastic Astrocytoma in First Relapse
NCT00003775
To Evaluate the Long-Term Safety and Efficacy of Pregabalin in Patients With Partial Seizures
NCT00141388
SU5416 in Treating Patients With AIDS-Related Kaposi's Sarcoma
NCT00003720
A Study to Determine the Degree of Additional Reduction in CV Risk in Lowering LDL Below Minimum Target Levels
NCT00327691
Depo-Provera: Bone Mineral Density and Total Body Calcium in Adolescent DP150CI Users and Non-Hormonal Contraception
NCT00139685
CMA-676 in Treating Older Patients With Acute Myeloid Leukemia in First Relapse
NCT00003673
Chemotherapy in Treating Patients Who Have Metastatic Prostate Cancer
NCT00003343
SU-101 Compared With Procarbazine in Treating Patients With Glioblastoma Multiforme
NCT00003293
Randomized Trial Of Exemestane Versus Continued Tamoxifen In Postmenopausal Women With Early Breast Cancer
NCT00038467
To Evaluate the Long-Term Safety of Pregabalin in Refractory Partial Epilepsy.
NCT00141414
CMA-676 in Treating Patients With Acute Myeloid Leukemia in First Relapse
NCT00003131
A 6 Month Study Comparing Latanoprost With Timolol in Patients With Open Angle Glaucoma or Ocular Hypertension
NCT00751127
Comparative Randomized Study of the Efficacy, Safety, and Toleration of Fluconazole Oral Suspension or Nystatin Oral Suspension in the Treatment of Patients With Oropharyngeal Candidiasis in Association With the Acquired Immunodeficiency Syndrome
NCT00002112
Study of the Efficacy of an Investigational Drug in Adult Patients With Non Small-Cell Lung Cancer (NSCLC)
NCT00034957
Azithromycin in the Treatment of Cryptosporidiosis in Patients With Acquired Immune Deficiency Syndrome (AIDS): A Randomized, Multi-Center, Placebo-Controlled, Double-Blind Study
NCT00002082
A Study of Fluconazole in the Treatment of Cryptococcal Meningitis in Patients Who Have Not Had Success With Amphotericin B
NCT00002306
A Comparison of the Safety and Effectiveness of Fluconazole or Clotrimazole in the Treatment of Fungal Infections of the Mouth and Throat in Patients With AIDS
NCT00002282
A Study of Azithromycin in the Prevention of Mycobacterium Avium Complex Disease (MAC) in HIV-Infected Patients
NCT00002309
Open, Non-Comparative Study of Intravenous and Oral Fluconazole in the Treatment of Acute Cryptococcal Meningitis
NCT00002040
A Study of Azithromycin in HIV-Infected Patients
NCT00002344
A Comparison of Fluconazole and Ketoconazole in the Treatment of Fungal Infections of the Throat in Patients With Weakened Immune Systems
NCT00002304
Phase I Study of the Clinical Pharmacology of Azithromycin in Buffy Coat of HIV-Infected Subjects.
NCT00002139
Multicenter Comparison of Fluconazole (UK-49,858) and Amphotericin B as Maintenance Treatment for the Prevention of Relapse of Cryptococcal Meningitis in Patients With Acquired Immunodeficiency Syndrome
NCT00002074
Study of the Safety and Efficacy of an Investigational Drug in Adult Patients With Multiple Myeloma
NCT00036140
An Open, Multicenter, Randomized, Dose-Ranging Study of Azithromycin in the Treatment of Disseminated Mycobacterium Avium-Intracellulare Complex Infection (MAC) in Patients With Acquired Immune Deficiency Syndrome (AIDS)
NCT00002090
Open, Non-Comparative Study of Fluconazole in Patients With Coccidioidal Meningitis
NCT00002010
A Pilot Study of Fluconazole Plus Flucytosine for the Treatment of AIDS Patients With Acute Cryptococcal Meningitis.
NCT00002113
A Study of Fluconazole in the Treatment of Cryptococcal Meningitis in Patients With AIDS
NCT00002294
A Randomized Study of Daily and Intermittent Prophylactic Regimens for the Prevention of Disseminated Mycobacterium Avium Complex (MAC) and Fungal Infections in HIV-Infected Patients
NCT00002122
A Study of Fluconazole in the Treatment of Fungal Infections of the Throat in Patients With Weakened Immune Systems
NCT00002339
A Multicenter Comparison of Fluconazole (UK-49,858) and Amphotericin B as Treatment for Acute Cryptococcal Meningitis
NCT00002068
A Comparison of Fluconazole and Amphotericin B in the Treatment of Cryptococcal Meningitis
NCT00002305
Pilot Study of Oral Fluconazole in the Treatment of Acute Cryptococcal Meningitis
NCT00002076
Multicenter Comparison of Fluconazole (UK-49,858) and Amphotericin B as Treatment for Acute Cryptococcal Meningitis
NCT00002075
Comparison of Fluconazole and Amphotericin B in the Treatment of Brain Infections in Patients With AIDS
NCT00001017
An Open-Label Study of the Use of Azithromycin in Patients With Symptomatic Disseminated Mycobacterium Avium-Intracellulare Complex (MAC) Infection Failing Current Therapy
NCT00002089
A Study of Azithromycin Plus Pyrimethamine in the Treatment of a Brain Infection in Patients With AIDS
NCT00000966
A Randomized, Double-Blind, Comparative Study of Azithromycin Versus Clarithromycin in Combination With Ethambutol for the Treatment of Disseminated Mycobacterium Avium Complex (MAC) Infection in AIDs Patients
NCT00002140
An Open, Non-Comparative Study of Intravenous and Oral Fluconazole in the Treatment of Acute Cryptococcal Meningitis
NCT00002077
A Study to Evaluate the Safety and Efficacy of Azithromycin in Individual Patients With Serious Nontuberculous Mycobacterial Disease Who Are Failing or Intolerant of Other Available Therapy
NCT00002085
A Comparison of Fluconazole and Amphotericin B in the Treatment of Fungal Infections
NCT00002277
Non-Comparative Study of Fluconazole in Patients With Serious Mycoses and Who Cannot Be Treated With Conventional Antifungal Therapy
NCT00002038
Irinotecan in Treating Patients With Refractory Solid Tumors and Liver Dysfunction
NCT00037804
A Study of Fluconazole in the Prevention of Fungal Infections in HIV-Infected Patients Living in Areas Where Fungal Infections Are Common
NCT00002325
Azithromycin in the Treatment of Cryptosporidiosis in Patients Who Have Not Had Success With Other Drugs
NCT00002328
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.