Estrogen-receptor positive breast cancer
MONDO:0006512A subtype of breast cancer that is estrogen-receptor positive
Also known as: ER+ breast cancer, estrogen receptor positive breast cancer, oestrogen receptor positive breast cancer
3536 clinical trials for this condition and its sub-types, 183 tagged with Estrogen-receptor positive breast cancer itself.
Follow this condition to get notified about new trialsWhere it sits in the disease tree
Browse by category →Sub-types of Estrogen-receptor positive breast cancer
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Hormone receptor-positive breast cancer 633 trials
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Triple-positive breast carcinoma 33 trials
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New hope for advanced breast cancer: experimental drug targets resistant tumors
Disease control Stopped earlyThis early-stage trial tests a new drug, GDC-0587, alone or with another drug (giredestrant), in people with advanced ER-positive, HER2-negative breast cancer whose cancer worsened after prior CDK4/6 inhibitor therapy. The study aims to find safe doses and check for side effects.…
Phase 1 • Sponsor: Genentech, Inc. • Aim: Disease control
Last updated Aug 23, 2026 00:00 UTC
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New cancer drug BBI-355 trial halted early – what we know
Disease control Stopped earlyThis early-phase trial tested a new oral drug called BBI-355, alone or with other targeted therapies, in people with advanced solid tumors that had extra DNA (oncogene amplifications). The study aimed to find the safest dose and check for side effects. It was terminated early, so…
Phase 1 • Sponsor: Boundless Bio, Inc. • Aim: Disease control
Last updated Aug 21, 2026 00:00 UTC
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New breast cancer drug shows promise in slowing tumor growth
Disease control Stopped earlyThis study tested a new drug called amcenestrant against standard hormone therapies in 367 people with advanced ER+/HER2- breast cancer. The goal was to see if it could slow cancer growth better than current options. The trial was stopped early, but results help guide future trea…
Phase 2 • Sponsor: Sanofi • Aim: Disease control
Last updated Jun 27, 2026 09:07 UTC
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Promising combo for rare breast cancer subtype hits early snag
Disease control Stopped earlyThis early-phase trial tested a combination of two drugs—infigratinib (a targeted therapy) and tamoxifen (a hormone therapy)—in people with a specific type of advanced breast cancer (hormone receptor-positive, HER2-negative, with FGFR gene changes). The goal was to find a safe do…
Phase 1 • Sponsor: Jennifer Lee Caswell-Jin • Aim: Disease control
Last updated Jun 27, 2026 09:04 UTC
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New pill for advanced breast cancer shows promise in early trial
Disease control Stopped earlyThis study tested a new oral drug called amcenestrant for postmenopausal women with a certain type of advanced breast cancer (ER+/HER2-). The goal was to find safe doses and see if it works alone or with other drugs. The trial was stopped early, but the results help researchers u…
Phase 1/2 • Sponsor: Sanofi • Aim: Disease control
Last updated Jun 27, 2026 07:59 UTC
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Cancer drug trial halted midway: what happened?
Disease control Stopped earlyThis study tested an experimental drug called VLS-101 in 102 people with advanced solid tumors, including breast, lung, ovarian, stomach, and pancreatic cancers that had stopped responding to standard treatments. The goal was to see if the drug could shrink tumors. However, the t…
Phase 2 • Sponsor: VelosBio Inc., a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA) • Aim: Disease control
Last updated Jun 27, 2026 07:56 UTC
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New pill shows promise in shrinking breast tumors, but study halted early
Disease control Stopped earlyThis Phase 2 study tested two doses of amcenestrant, a new oral drug that blocks estrogen receptors, against letrozole, a standard hormone therapy, in 105 postmenopausal women with ER-positive, HER2-negative breast cancer. The goal was to see if amcenestrant could better reduce t…
Phase 2 • Sponsor: Sanofi • Aim: Disease control
Last updated Jun 26, 2026 18:35 UTC
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Promising breast cancer combo trial halted early – what went wrong?
Disease control Stopped earlyThis phase 3 trial tested whether a new drug called amcenestrant (which blocks estrogen) combined with palbociclib could help people with advanced ER+/HER2- breast cancer live longer without their cancer growing. Over 1,000 participants who had not yet received treatment for adva…
Phase 3 • Sponsor: Sanofi • Aim: Disease control
Last updated Jun 26, 2026 16:50 UTC
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New scan could predict hormone therapy success in breast cancer
Diagnosis Stopped earlyThis study tested a special PET/CT scan using a radioactive tracer called FES to see estrogen receptor activity in women with advanced, hormone-resistant breast cancer. The goal was to see if the scan could predict how well a new hormone therapy would work. Only 6 people were enr…
Phase 2 • Sponsor: University of Pennsylvania • Aim: Diagnosis
Last updated Jun 27, 2026 13:06 UTC