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US FDA approves Lilly's breast cancer drug combo

TheTools · 18.09.2026 21:29 · source · permalink

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FILE PHOTO: The Eli Lilly compnay hits  $1 trillion in market value
FILE PHOTO: A drone view shows the Eli Lilly logo on one of the company’s offices after it hit $1 trillion in market value on Friday, becoming the first drugmaker to join the exclusive club dominated by tech giants and underscoring its rise as a weight-loss powerhouse, in San Diego, California, U.S., November 21, 2025. REUTERS/Mike Blake/File Photo

Sept 18 (Reuters) - The US FDA has approved Eli Lilly's drug combination to treat adults with a type of advanced breast ‌cancer that has spread to other parts of the body, ‌the drugmaker said on Friday.

Here are some details:

• The combination, Inluriyo-Verzenio, is meant for patients ​whose tumors are estrogen receptor-positive, HER2-negative and carry an ESR1 mutation, and whose cancer has worsened after at least one hormone treatment.

• About half of the patients with ER-positive, HER2-negative metastatic breast cancer develop an ESR1 mutation ‌during or after treatment with ⁠a widely used class of hormone-blocking therapies, Lilly said.

• The US Food and Drug Administration had approved Inluriyo in ⁠September last year to treat metastatic breast cancer, also called Stage IV breast cancer with ESR1 mutations.

• The approval was based on a late-stage study ​of 159 ​patients with this type of advanced ​breast cancer. Patients who took ‌both drugs went a median of 11.1 months before their cancer worsened, compared with 5.5 months for those who took Inluriyo alone.

• HR+/HER2- is the most common subtype of breast cancer — the second leading cause of cancer death in women.

• Inluriyo is a daily pill that blocks and ‌breaks down estrogen receptors that can help ​some breast cancers grow, while Verzenio is ​a twice-daily pill that slows ​cancer-cell division.

• The combination also carries risks, Lilly said, ‌including severe diarrhea, low white blood ​cell counts, lung ​inflammation, liver problems and blood clots.

• Inluriyo's label includes a warning for embryo-fetal toxicity, which refers to potential risk of harm to ​a developing embryo and ‌fetus if exposure occurs during pregnancy.

• Lilly said Inluriyo plus Verzenio ​is available immediately in the United States.

(Reporting by Padmanabhan Ananthan ​in Bengaluru; Editing by Shilpi Majumdar)


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