Last reviewed 2026-06-10 · How we verify

Hormone receptor-positive, human epidermal growth factor receptor 2-negative (HER2-negative) advanced or metastatic breast cancer in combination with an aromatase inhibitor as initial endocrine-based therapy in postmenopausal women with estrogen receptor-positive (ER+), HER2-negative breast cancer — Treatment Landscape & Competitive Intelligence

Hormone receptor-positive, human epidermal growth factor receptor 2-negative (HER2-negative) advanced or metastatic breast cancer in combination with an aromatase inhibitor as initial endocrine-based therapy in postmenopausal women with estrogen receptor-positive (ER+), HER2-negative breast cancer (disease) competitive

Marketed treatment landscape

Approved drugs treating Hormone receptor-positive, human epidermal growth factor receptor 2-negative (HER2-negative) advanced or metastatic breast cancer in combination with an aromatase inhibitor as initial endocrine-based therapy in postmenopausal women with estrogen receptor-positive (ER+), HER2-negative breast cancer, deduplicated by molecule. See the full disease page for line-of-therapy detail.

Phase 3 pipeline

No Phase 3 pipeline candidates tracked.

Phase 2 pipeline

No Phase 2 pipeline candidates tracked.

Recent regulatory actions (last 90 days)

No regulatory actions in the last 90 days for this treatment set.

Upcoming PDUFA dates (next 180 days)

No PDUFA dates in the next 180 days for this treatment set.

Sponsor landscape

1. Pfizer · 1 drug in Hormone receptor-positive, human epidermal growth factor receptor 2-negative (HER2-negative) advanced or metastatic breast cancer in combination with an aromatase inhibitor as initial endocrine-based therapy in postmenopausal women with estrogen receptor-positive (ER+), HER2-negative breast cancer

Subscribe to ongoing alerts

Every new regulatory action, PDUFA date, or trial completion in Hormone receptor-positive, human epidermal growth factor receptor 2-negative (HER2-negative) advanced or metastatic breast cancer in combination with an aromatase inhibitor as initial endocrine-based therapy in postmenopausal women with estrogen receptor-positive (ER+), HER2-negative breast cancer:

• Hormone receptor-positive, human epidermal growth factor receptor 2-negative (HER2-negative) advanced or metastatic breast cancer in combination with an aromatase inhibitor as initial endocrine-based therapy in postmenopausal women with estrogen receptor-positive (ER+), HER2-negative breast cancer treatment updates — RSS
• Hormone receptor-positive, human epidermal growth factor receptor 2-negative (HER2-negative) advanced or metastatic breast cancer in combination with an aromatase inhibitor as initial endocrine-based therapy in postmenopausal women with estrogen receptor-positive (ER+), HER2-negative breast cancer treatment updates — Atom
• Hormone receptor-positive, human epidermal growth factor receptor 2-negative (HER2-negative) advanced or metastatic breast cancer in combination with an aromatase inhibitor as initial endocrine-based therapy in postmenopausal women with estrogen receptor-positive (ER+), HER2-negative breast cancer treatment updates — JSON

Cite this brief

Drug Landscape (2026). Hormone receptor-positive, human epidermal growth factor receptor 2-negative (HER2-negative) advanced or metastatic breast cancer in combination with an aromatase inhibitor as initial endocrine-based therapy in postmenopausal women with estrogen receptor-positive (ER+), HER2-negative breast cancer — Treatment Landscape & Competitive Intelligence Brief. https://druglandscape.com/ci/disease/hormone-receptor-positive-human-epidermal-growth-factor-receptor-2-negative-her2-negative-advanced-or-metastatic-breast-cancer-in-combination-with-an-aromatase-inhibitor-as-initial-endocrine-based-therapy-in-postmenopausal-women-with-estrogen-receptor-positive-er-her2-negative-breast-cancer. Accessed 2026-06-10.

Related

• Hormone receptor-positive, human epidermal growth factor receptor 2-negative (HER2-negative) advanced or metastatic breast cancer in combination with an aromatase inhibitor as initial endocrine-based therapy in postmenopausal women with estrogen receptor-positive (ER+), HER2-negative breast cancer full disease profile — treatment pathway, diagnostics, guidelines
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Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing