The short answer
Basket and umbrella trials are newer designs based on tumor genetics. A basket trial tests one treatment across many cancer types with a shared mutation; an umbrella trial tests several treatments within one cancer type.
These designs match treatments to genetic changes in tumors.
A basket trial tests one treatment across many cancers sharing a mutation.
An umbrella trial tests several treatments within one cancer type.
Both rely on genetic testing of the tumor.
Choose how you want to understand this
The full explanation.
Trials built around genetics
Basket and umbrella trials are newer study designs that grew out of precision oncology — the idea that a tumor's genetic changes can matter as much as the organ it started in. Both rely on genetic testing of the tumor.
Basket trials
A basket trial tests one treatment in people who have many different cancer types, as long as their tumors share the same genetic change. The "basket" holds different cancers united by one mutation. This design is useful when a drug targets a specific change that shows up across several cancers.
Umbrella trials
An umbrella trial works the other way. It studies people with a single cancer type and sorts them into different treatments based on the specific genetic change in each person's tumor. The "umbrella" covers one cancer with several treatment options underneath.
What it means for patients
Because these trials depend on tumor genetics, qualifying usually starts with genetic testing of your cancer. If you are curious whether one of these trials fits you, ask your oncologist about tumor genetic testing and whether a matching study is open.
Words to know
Tap any term to see what it means.
Common questions
▸What is a basket trial?
A basket trial tests a single treatment in people who have different types of cancer that all share the same genetic change, based on the idea that the mutation matters more than the organ.
▸What is an umbrella trial?
An umbrella trial studies people with one type of cancer and assigns different treatments depending on the specific genetic change found in each person's tumor.
▸How do I know if I qualify?
These trials depend on genetic testing of your tumor. Your oncologist can order or review that testing and check whether a matching trial is open.
▸Why were these designs created?
They make it possible to study treatments aimed at specific mutations more efficiently, which fits the growing field of precision oncology.
Test your knowledge
0 of 5 answered
This quiz checks understanding of educational content only. It is not medical advice. Open this quiz on its own page.
How this page was created
Cancer Explained uses AI to organize and translate information from the authoritative sources cited on each page. Automated checks review claims, citations, clarity, duplication, and potential safety concerns before publication. Our content is not currently reviewed by physicians unless a specific qualified reviewer is named on the page. Cancer Explained provides general education and should not replace advice from your healthcare team.
Human medical review: not completed. At this time, most Cancer Explained content has not been reviewed by a physician or other healthcare professional. Pages with documented human medical review identify the reviewer, credentials, and review date directly.
Read more about our editorial process, our use of AI, and our corrections policy.
Spotted a problem? Report an error — a factual mistake, broken or outdated source, confusing wording, or anything that seems unsafe. Please do not include names, medical record numbers, dates of birth, addresses, or other identifying medical information in your report.
After using this page, do you understand what to do next?
Anonymous — we only record the answer, never who gave it.