Marcia Horn, JD, is President and CEO of the International Cancer Advocacy Network (ICAN), a charitable organization serving cancer patients worldwide. As an Ambassador, she applies patient-centered outcomes research to rare cancer projects such as ICAN's Exon 20 Group. She works with an energized board and hundreds of volunteers in a network spanning 17 time zones. A graduate of Stanford University and the Stanford Law School, Horn practiced commercial and appellate litigation prior to joining ICAN. Horn is the patient advocate for the Early Therapeutics and Rare Cancers Committee of the Southwest Oncology Group (SWOG). She serves on the American Society of Clinical Oncology (ASCO) Targeted Agent and Profiling Utilization Registry Study’s Molecular Tumor Board and is past co-chair of the Drug Information Association’s Patient Engagement Community. Horn is one of two patient advocates for two Stand Up to Cancer dream teams: the Molecular Early Detection of Colon Cancer Dream Team, and the Lung Cancer Interception Dream Team. She is the director of the Exon 20 Group, which is a multi-stakeholder global working group and coalition featuring leading thoracic and medical oncologists, molecular pathologists, scientists, representatives from pharma, biotech, and molecular profiling laboratories, patient advocates, patients, their families, and caregivers.

Involvement with PCORI

PCORI Merit Reviewer

Ambassador Interests

Health Conditions Health Conditions These are the broad terms we use to categorize our funded research studies; specific diseases or conditions are included within the appropriate larger category. Note: not all of our funded projects focus on a single disease or condition; some touch on multiple diseases or conditions, research methods, or broader health system interventions. Such projects won’t be listed by a primary disease/condition and so won’t appear if you use this filter tool to find them. View Glossary
Populations Populations PCORI is interested in research that seeks to better understand how different clinical and health system options work for different people. These populations are frequently studied in our portfolio or identified as being of interest by our stakeholders. View Glossary
State State The state where the project originates, or where the primary institution or organization is located. View Glossary

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