Research Sites

Main Research and Development Centers

Each of our R&D centers specializes in a different area of scientific exploration. We have several major campuses located throughout the U.S. and U.K.

Andover, Massachusetts

A 70-acre site that combines state-of-the-art R&D facilities with flexible, multi-product manufacturing capabilities.

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

As the company’s largest R&D facility, Groton is involved in the development of nearly every Pfizer medicine and vaccine.

La Jolla, California

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

The primary location for our company’s global Vaccine Research and Development work.

Sandwich, UK

Home of the Pharmaceutical Sciences and Global Regulatory Affairs groups.

St. Louis, MO

A 300,000 sq. ft. facility producing innovative emergency care products that serve unique needs during severe medical crises.

Pipeline Snapshot as of May 5, 2026

Explore the Product Pipeline Download Complete Pipeline PDF

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Clinical Trials

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

Go to Pfizer Clinical Trials Site

Decoding the Complex Science of Obesity

GLP-1. GIP. Amylin. Incretins. Peptides. NuSH. It’s not hard to see why the language surrounding modern obesity research sometimes feels like an alphabet soup of scientific terms. But behind each is a growing understanding of how the body regulates hunger, metabolism, energy use, and weight. It’s shaping what we know about how those systems might contribute to obesity.

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May Social Media Round-Up—ASCO, Q1 2026 Results, and More

Summer’s approaching fast, but here at Pfizer the work doesn’t stop. So before you get outside to enjoy the warmer weather, catch up with the latest activity on our social channels.

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Turning Silence Into Advocacy: Women Reshaping Cancer Conversations

The sixth season of Science Will Win, Pfizer’s award-winning podcast, focused on cancer, with each episode tackling a different aspect of the fight against the disease.

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Our Research and Development Centers