Plain-English translation of NCT04562623 on ClinicalTrials.gov ↗ · Source last updated · Translation generated · How we translate trials
Researchers are trying to understand why immunotherapy—a type of cancer treatment that helps your own immune system fight cancer—works for some patients but not others. This study will collect tissue and blood samples from women with breast or ovarian cancer before they have surgery, then analyze these samples in detail to identify which immune cells might be blocking treatment success.
While immunotherapy has helped some cancer patients, only about one-third of people with breast or ovarian cancer benefit from it. By studying the immune cells around tumors in detail, researchers hope to find new ways to help more patients respond to treatment and improve survival.
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You would participate as part of your normal cancer care plan. During your already-scheduled surgery to remove the tumor, the surgeon will collect extra tissue samples for research. You may also have blood samples taken. The researchers will then analyze these samples to study your immune cells and their characteristics—looking at the proteins, genes, and function of different immune cell types.
AI-generated summary from trial data · Jul 15, 2026 · Not medical advice
France
Centre Leon Berard
Collaborators
Cancer Research Center of Lyon
Enrollment target
~160 participants
Started
July 2021
Primary completion
July 2026
This trial's estimated completion date has passed — the record may not be fully up to date.
Age range
18 Years and older
Sex
Female only
Last updated on clinicaltrials.gov in April 2026.
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Central contact
Nicolas Chopin
Centre Leon Berard
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