[Maker Of Coronavirus Trial Drug Remdesivir, Gilead Sciences. Inc., Reports Positive Data Coming From Trials]
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Gilead Sciences (GILD [https://seekingalpha.com/symbol/GILD]) announced on Friday that a Phase 3 trial for its FDA-approved antibody-drug conjugate Trodelvy failed in a Phase 3 trial, which tested it as a first-line option for certain patients with breast cancer who have undergone prior endocrine therapy.
Based on data from its Phase 3 ASCENT-07 study, the Foster City, California-based biotech said Trodelvy didn’t reach the trial’s primary endpoint related to patients’ progression-free survival (PFS).
The global trial was designed to evaluate Trodelvy versus chemotherapy in patients with locally advanced, inoperable, or HR+/HER2-negative breast cancer, the most common breast cancer subtype, which accounts for nearly ~70% of cases.
At the time of the analysis, the data for overall survival, a key secondary endpoint of ASCENT-07, were not mature, the company said, adding, however, that there was an early favorable trend supporting OS benefit in Trodelvy-treated patients compared to those on chemotherapy.
Trodelvy is currently approved as a late-line option for triple-negative breast cancer and HER2-negative breast cancer in the U.S. [https://seekingalpha.com/pr/20298866-gilead-provides-update-on-phase-3-ascentminus-07-study]
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Gilead fails late-stage trial for Trodelvy in first-line breast cancer
Published 23 hours ago
Nov 7, 2025 at 2:14 PM
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