Hormone receptor-positive breast cancer
MONDO:0700079A breast carcinoma which is positive for expression of estrogen receptor (ER), progesterone receptor (PR), and is negative for expression of human epidermal growth factor receptor 2 (HER2).
Also known as: HR-positive HER2-negative breast cancer, hormone receptor positive breast cancer
3414 clinical trials for this condition and its sub-types, 636 tagged with Hormone receptor-positive breast cancer itself.
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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 pill shows promise in early trial for Hard-to-Treat breast cancer
Disease control Stopped earlyThis early-stage study tests a new oral drug, BBI-940, in people with advanced or metastatic breast cancer that has not responded to standard treatments. The drug works by breaking down a protein that helps cancer cells grow. The study aims to find the safest dose and check for s…
Phase 1 • Sponsor: Boundless Bio, Inc. • Aim: Disease control
Last updated Aug 21, 2026 00:00 UTC
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Double hormone blockade may tackle Hard-to-Treat breast cancer
Disease control Stopped earlyThis trial tests a combination of two drugs, elacestrant and onapristone, in people with a specific type of advanced or metastatic breast cancer that is fueled by the hormones estrogen and progesterone. The goal is to see if blocking both hormone signals at once is safe and can s…
Phase 1/2 • Sponsor: Context Therapeutics Inc. • Aim: Disease control
Last updated Jul 23, 2026 00:00 UTC
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New targeted therapy duo enters human trials for advanced breast cancer
Disease control Stopped earlyThis early-phase study tests two related drugs: one to help see tumors on scans (68Ga-R11228) and another to deliver radiation directly to cancer cells (177Lu-R11228). It is for people with advanced hormone-receptor positive breast cancer that has spread or come back. The main go…
Phase 1 • Sponsor: Radionetics Oncology • Aim: Disease control
Last updated Jul 15, 2026 00:00 UTC
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Genetic clues could personalize breast cancer treatment
Disease control Stopped earlyThis study looks at genetic changes in postmenopausal women with a common type of advanced breast cancer (HR+ HER2-). Participants first receive ribociclib plus letrozole; those with a specific mutation (PIK3CA) may later switch to alpelisib plus fulvestrant. The goal is to track…
Phase 3 • Sponsor: Novartis Pharmaceuticals • Aim: Disease control
Last updated Jul 12, 2026 00:00 UTC
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Breast cancer drug showdown: which CDK4/6 inhibitor works best?
Disease control Stopped earlyThis phase 3 trial aimed to compare two drugs, ribociclib and palbociclib, in people with a specific type of advanced breast cancer (HR+/HER2- with HER2-enriched features). Participants received one of the drugs combined with hormone therapy. The goal was to see which combination…
Phase 3 • Sponsor: SOLTI Breast Cancer Research Group • Aim: Disease control
Last updated Jun 27, 2026 14:02 UTC
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Experimental combo therapy for advanced breast cancer tested in small early trial
Disease control Stopped earlyThis early-phase study tested a new treatment for people with advanced breast cancer that had stopped responding to standard therapies. The treatment combined a patient's own engineered immune cells (CLBR001) with an antibody drug (ABBV-461). The study aimed to find the safest do…
Phase 1 • Sponsor: Calibr, a division of Scripps Research • Aim: Disease control
Last updated Jun 27, 2026 12:38 UTC
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New drug combo for advanced breast cancer shows promise but trial halted early
Disease control Stopped earlyThis phase 2 study tested a new drug called lerociclib combined with standard hormone therapy in 100 people with advanced HR+/HER2- breast cancer. The goal was to see if the combination is safe and effective. However, the trial was terminated early, so the full results are not av…
Phase 2 • Sponsor: EQRx, Inc. • Aim: Disease control
Last updated Jun 27, 2026 12:34 UTC
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Promising combo for brain metastases? trial ends early
Disease control Stopped earlyThis early-phase trial tested two oral drugs, abemaciclib and elacestrant, in women with a type of breast cancer (HR+/HER2-) that had spread to the brain. The goal was to see if the combination was safe and could shrink brain tumors. However, the study was stopped early after enr…
Phase 1/2 • Sponsor: Criterium, Inc. • Aim: Disease control
Last updated Jun 27, 2026 12:01 UTC
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New drug combo targets brain metastases in advanced cancers
Disease control Stopped earlyThis study tested a combination of two drugs, bintrafusp alfa and pimasertib, in people whose cancer had spread to the brain. The goal was to find the safest dose and see if the treatment could slow or stop the cancer from growing. The trial was stopped early after enrolling only…
Phase 1/2 • Sponsor: M.D. Anderson Cancer Center • Aim: Disease control
Last updated Jun 27, 2026 11:02 UTC
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Promising breast cancer combo trial shutters after just one patient
Disease control Stopped earlyThis phase 2 trial aimed to see if adding the targeted drug binimetinib to the standard hormone therapy fulvestrant could help people with a certain genetic change (NF1) in hormone receptor-positive breast cancer that has spread. Only one person enrolled before the study was term…
Phase 2 • Sponsor: National Cancer Institute (NCI) • Aim: Disease control
Last updated Jun 27, 2026 09:09 UTC
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Promising combo for tough breast cancers hits early hurdle
Disease control Stopped earlyThis early-phase trial tested a combination of targeted drugs (neratinib, pertuzumab, trastuzumab) and chemotherapy (paclitaxel, doxorubicin, cyclophosphamide) in 34 people with advanced or inflammatory breast cancer. The goal was to find the best dose and see if the combo could …
Phase 1/2 • Sponsor: M.D. Anderson Cancer Center • Aim: Disease control
Last updated Jun 27, 2026 09:04 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 cancer drug trial halted early – what we know
Disease control Stopped earlyThis study tested a new drug, felmetatug vedotin, alone or with pembrolizumab, in people with advanced solid tumors like ovarian, breast, and lung cancer. The goal was to check safety and find the right dose. The trial was terminated early, so results are limited.
Phase 1 • Sponsor: Seagen, a wholly owned subsidiary of Pfizer • Aim: Disease control
Last updated Jun 27, 2026 08:09 UTC
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Promising breast cancer combo trial halted early – only 6 patients enrolled
Disease control Stopped earlyThis phase 2 trial tested repotrectinib with or without fulvestrant in people with a rare, hormone-positive, HER2-negative metastatic breast cancer called invasive lobular carcinoma. The goal was to see if the combination could control the disease after standard treatments had st…
Phase 2 • Sponsor: M.D. Anderson Cancer Center • Aim: Disease control
Last updated Jun 27, 2026 08:09 UTC
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Cancer drug combo shows promise but study halted early
Disease control Stopped earlyThis study tested a combination of two drugs—pembrolizumab (an immunotherapy) and mifepristone (a hormone blocker)—in people with advanced HER2-negative breast cancer. The goal was to see if the combination could shrink tumors. The study was stopped early after enrolling 24 parti…
Phase 2 • Sponsor: University of Chicago • Aim: Disease control
Last updated Jun 27, 2026 08:06 UTC
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Could a leukemia drug help fight breast cancer? new trial investigates
Disease control Stopped earlyThis study tested whether adding a drug called ATRA (all-trans retinoic acid) to the standard hormone therapy anastrozole could shrink tumors more effectively in postmenopausal women with a common type of early breast cancer (HR-positive/HER2-negative). The trial was planned for …
Phase 2 • Sponsor: Mario Negri Institute for Pharmacological Research • Aim: Disease control
Last updated Jun 27, 2026 08:05 UTC
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Breast cancer drug combo trial ends early after only 8 patients
Disease control Stopped earlyThis study tested a new drug combination (TQB3912, fulvestrant, and TQB3616) in people with advanced HR-positive, HER2-negative breast cancer. The goal was to find the best dose and see if the treatment shrank tumors or slowed cancer growth. The trial was stopped early after enro…
Phase 1/2 • Sponsor: Chia Tai Tianqing Pharmaceutical Group Co., Ltd. • Aim: Disease control
Last updated Jun 27, 2026 08:03 UTC
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New cancer drug BLU-222 tested in early trial – but study stopped early
Disease control Stopped earlyThis early-phase trial tested a new drug called BLU-222, alone or with other medicines, in about 50 people with advanced solid tumors (including certain breast, ovarian, and stomach cancers). The goal was to find a safe dose and see if it shrinks tumors. However, the study was te…
Phase 1 • Sponsor: Blueprint Medicines Corporation • Aim: Disease control
Last updated Jun 27, 2026 08:00 UTC
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New pill shows promise against tough breast and ovarian cancers
Disease control Stopped earlyThis study tested an experimental drug (PF-06873600) taken by mouth, alone or with hormone therapy, in people with advanced breast or ovarian cancers. The goal was to check safety and see if the drug could shrink tumors. The trial was stopped early, but results help guide future …
Phase 1/2 • Sponsor: Pfizer • Aim: Disease control
Last updated Jun 27, 2026 07:57 UTC
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New pill targets Hard-to-Treat cancers in early human test
Disease control Stopped earlyThis early-phase trial tested an experimental oral drug called NKT3447 in 23 adults with advanced or metastatic solid tumors that had stopped responding to standard treatments. The goal was to check safety, find the right dose, and see if the drug could shrink tumors. The study w…
Phase 1 • Sponsor: NiKang Therapeutics, Inc. • Aim: Disease control
Last updated Jun 27, 2026 07:52 UTC
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New breast cancer drug test halted after just 3 patients
Disease control Stopped earlyThis study aimed to see if a new drug called amcenestrant could help prevent breast cancer from coming back in people with hormone receptor-positive early breast cancer who had side effects from standard aromatase inhibitor therapy. It was designed to compare amcenestrant against…
Phase 3 • Sponsor: Sanofi • Aim: Disease control
Last updated Jun 26, 2026 17:36 UTC
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Can a smartphone app help breast cancer patients stay on track with Life-Saving pills?
Symptom relief Stopped earlyThis study tested whether a web-based app could help women with early-stage hormone-positive breast cancer take their daily hormone therapy more consistently. Many patients stop taking these pills due to side effects or lack of support, which raises the risk of cancer returning. …
Sponsor: Emory University • Aim: Symptom relief
Last updated Jun 27, 2026 12:08 UTC
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Breast cancer drug combo safety study ends early – only 4 patients enrolled
Knowledge-focused Stopped earlyThis was an observational study that planned to track side effects, especially high blood sugar, in patients taking alpelisib (Piqray) plus fulvestrant for a type of advanced breast cancer. It included postmenopausal women and men whose cancer had a specific gene mutation (PIK3CA…
Sponsor: Novartis Pharmaceuticals • Aim: Knowledge-focused
Last updated Jun 27, 2026 08:01 UTC