American Association for Cancer Research (AACR)

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Survivor Story

Mary Catherine Riley is living cancer-free thanks to a clinical trial involving two targeted therapeutics for her stage 3 ovarian cancer.

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About Cancer

Cancer is not a single disease, but rather a collection of diseases all characterized by the uncontrolled proliferation of cells.

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Believe in Progress

The Philadelphia Cycling Classic is returning. Experience the 14-mile course as part of the AACR Riders for Research team while raising critical funds for cancer science and medicine.

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Cancer Types

More than 226,000 people living in the United States were diagnosed with lung cancer last year. Learn about prevention, screening, and treatment options for lung cancer.

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TILs AACR Stories

Boosting the Immune Response to Cancer: Decades of pioneering research led to a first-of-its-kind FDA approval for a new type of immunotherapy—tumor-infiltrating lymphocyte (TIL) therapy.

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Practical Knowledge

Useful information for cancer patients and their families, survivors, caregivers, advocates, and others from Cancer Today magazine.

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Support Lifesaving Research

Whether honoring a special person or a special day, a donation to the American Association for Cancer Research has a lasting impact.

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For Researchers
AACR Annual Meeting 2026

Advance registration is open for the AACR Annual Meeting 2026. Register by February 27 to receive discounted rates.

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Videos

AACR Pediatric Cancer Progress Report 2025

The AACR Pediatric Cancer Progress Report 2025 highlights the remarkable progress against childhood cancers driven by discoveries across the basic, translational, clinical, and population sciences.

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The AACR: Driving Progress Against Cancer

The AACR and its more than 61,000 members worldwide are advancing a scientifically bold agenda against the collection of diseases we call cancer.

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AACR Cancer Progress Report 2025

The AACR Cancer Progress Report 2025 highlights research-driven advances against the collection of often devastating diseases we call cancer.

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By the Numbers

34

percent decrease of the overall age-adjusted cancer death rate in the U.S. from 1991 to 2023

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28

therapeutics were approved for new or expanded uses by the FDA from July 1, 2024, to June 30, 2025

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18.6

million cancer survivors in the U.S. are living with, through, and beyond their disease thanks to research

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4 in 10

cancer diagnoses in the United States are associated with preventable risk factors

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For more statistics on cancer, please visit our Cancer Progress ReportRead the AACR Cancer Progress Report