Our Science: Pharmaceutical Development | Pfizer

Areas of Focus

Revolutionary medicines enable us to enrich and extend life for people living with all types of diseases.

Internal Medicine

We’re developing therapies to treat, slow, or prevent disease progression and improve the quality of life for patients with obesity, type 2 diabetes, and cardiovascular and kidney diseases.

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Inflammation & Immunology

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We look for treatments that provide more than just symptom relief, in order to address the root cause of chronic inflammatory diseases at a molecular level

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Vaccines

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Vaccines are the single most important innovation in the science of health to significantly reduce the threat of diseases that were once widespread and oftentimes fatal.

Vaccines
Milestones
Pipeline & Clinical Trials

Oncology

View All Oncology

Cancer treatment needs to be transformed across the entire landscape to significantly improve the lives of cancer patients worldwide.

Oncology
Biology into medicine
Advocacy
Global Impact

Pipeline Snapshot as of May 5, 2026

Explore the Product Pipeline Download Complete Pipeline PDF

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Highlights

This is our rallying cry as our scientists relentlessly pursue breakthroughs that will change patients’ lives.

2023
Science
Will Win

"There are so many losers. They’re everywhere. Doubt, fear, sorrow. They lose.” This is what happens when science wins."

Clinical Trials

We proudly partner with thousands of study sites and tens of thousands of trial participants around the world. It’s these clinical trials that lead to life-changing medicines.

Go to Pfizer Clinical Trials Site

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Learn more about the process of joining a clinical trial and find a trial near you.

Diseases & Conditions Index

Explore all of our disease and condition-related resources to learn more about your diagnosis and treatment options.

Search for a Disease or Condition

Partnerships

Fellow organizations actively researching bold scientific ideas, capabilities, and technologies partner with us to bring innovative treatments to patients in need. And we continually seek new partnerships in several key interest areas.

Learn About Our Partners

Research Sites

We have Research & Development colleagues across the world to support our product pipeline. Details from major Research & Development locations are listed below

Andover, Massachusetts

Combining state-of-the-art R&D and Pfizer Global Supply (PGS) facilities with flexible, multi-product manufacturing capabilities, Andover is a key driver of innovation across our biologics discovery, development, and global clinical and commercial supply efforts.

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Cambridge, Massachusetts

Located in Kendall Square, our Cambridge site interlaces Pfizer’s R&D capability with the densest biomedical community in the world.

Groton, Connecticut

Many of the discoveries and innovations that drive the Pfizer pipeline to new potential occur in the world-class research and development laboratories in Groton.

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San Diego, CA

With more than 500,000 square feet of state-of-the-art facilities, this is where our scientists discover and develop cutting-edge cancer therapies using advanced laboratories and equipment.

Pearl River, New York

As the global hub for Pfizer Vaccine Research and Development, our Pearl River colleagues have developed and manufactured vaccines and other medicines for more than a century.

St. Louis, MO

An expansive laboratory and manufacturing space, our colleagues focus on the development of potential new medicines to help prevent or treat diseases and conditions.

To our Investors

Our ambitions are big and our product pipeline has never been stronger. We’re energized and inspired to apply science and our global resources to develop and deliver breakthrough therapies to people everywhere.

To our Investors

Why Invest

Financial Reports

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Events and Presentations

Stock Information

Investor News

Pfizer. 2024 Annual Review. Published March 13, 2025.
The Patients Reached metric is calculated from Pfizer and third-party datasets. Figures may be limited given the coverage provided by external sources (e.g., calendar duration, geographic and product coverage) and are subject to change. Numbers are estimates and, in some cases, use global volume, daily dosage and number of treatment days to facilitate calculations. Methodologies to calculate estimates may vary by product type given the nature of the product and available data. Patients taking multiple Pfizer products may be counted as multiple patients toward the total. Numbers include estimated patient counts from our “Accord for a Healthier World” program. Numbers do not include comprehensive estimated patient counts from Ex-U.S. Patient Support Programs. Historical estimates may periodically be subject to revision due to restatements in the underlying data source.