Back to discover
Disease
Breast adenocarcinoma
Late-stage therapeutic development
Also known as adenocarcinoma of breast, adenocarcinoma of the breast, mammary adenocarcinoma.
18
Clinical trials
12
Associated genes
3
Related proteins
Latest activity
betaRecent clinical, regulatory, research and industry developments relating to this disease.
Clinical trial2026-07-14Status changed to Suspended · ClinicalTrials.gov
What's happening now
An analyst briefing on current research, clinical, regulatory and industry activity surrounding this disease.
Executive briefingUpdating summary…Momentum: Moderate
Key developments
- 1 clinical trial expected to report results, the earliest in Q3 2027.
Upcoming Milestones
Major developments
Major trial resultsHigh impact
Results posted2026-10-01
Major trial resultsHigh impact
Results posted2026-08-26
Clinical MilestonesViewHide
Results posted
- 2026-10-01Program for the Assessment of Clinical Cancer Tests (PACCT-1): Trial Assigning Individualized Options for Treatment:The TAILORx TrialResults posted
- 2026-08-26A Double-Blind Phase III Trial of Doxorubicin and Cyclophosphamide Followed by Paclitaxel With Bevacizumab or Placebo in Patients With Lymph Node Positive and High Risk Lymph Node Negative Breast CancerResults posted
- 2026-07-01T-Cell Immune Checkpoint Inhibition Plus Hypomethylation for Locally Advanced HER2-Negative Breast Cancer - A Phase 2 Neoadjuvant Window Trial of Pembrolizumab and Decitabine Followed by Standard Neoadjuvant ChemotherapyResults posted
- 2026-06-16Phase II Prospective Open Label Study of Pertuzumab, Trastuzumab, and Nab-Paclitaxel in Patients With HER-2 Positive Advanced Breast CancerResults posted
- 2026-02-17Triple-Negative First-Line Study: Neoadjuvant Trial of Nab-Paclitaxel and MPDL3280A, a PDL-1 Inhibitor in Patients With Triple Negative Breast CancerResults posted
Results expected
- 2026-08-04Phase 1/2 Study of Rina-S in Patients With Locally Advanced and/or Metastatic Solid TumorsResults expected Q3 2027
Recently completed
Activity timeline8
- 2026-10-01ClinicalProgram for the Assessment of Clinical Cancer Tests (PACCT-1): Trial Assigning Individualized Options for Treatment:The TAILORx TrialResults posted
- 2026-08-26ClinicalA Double-Blind Phase III Trial of Doxorubicin and Cyclophosphamide Followed by Paclitaxel With Bevacizumab or Placebo in Patients With Lymph Node Positive and High Risk Lymph Node Negative Breast CancerResults posted
- 2026-08-04ClinicalPhase 1/2 Study of Rina-S in Patients With Locally Advanced and/or Metastatic Solid TumorsResults expected Q3 2027
- 2026-07-01ClinicalT-Cell Immune Checkpoint Inhibition Plus Hypomethylation for Locally Advanced HER2-Negative Breast Cancer - A Phase 2 Neoadjuvant Window Trial of Pembrolizumab and Decitabine Followed by Standard Neoadjuvant ChemotherapyResults posted
- 2026-06-16ClinicalPhase II Prospective Open Label Study of Pertuzumab, Trastuzumab, and Nab-Paclitaxel in Patients With HER-2 Positive Advanced Breast CancerResults posted
- 2026-05-13ClinicalAssociation of HSD3B1 Genotype With Response to Preoperative Letrozole Therapy Among Postmenopausal Women With Estrogen-Receptor Positive (ER+) HER2/Neu-Negative (HER2-) Invasive Carcinomas of the BreastTerminated
- 2026-02-17ClinicalTriple-Negative First-Line Study: Neoadjuvant Trial of Nab-Paclitaxel and MPDL3280A, a PDL-1 Inhibitor in Patients With Triple Negative Breast CancerResults posted
- 2025-12-31ClinicalA Randomized Phase III Trial of Adjuvant Therapy Comparing Doxorubicin Plus Cyclophosphamide Followed by Weekly Paclitaxel With or Without Carboplatin for Node-Positive or High-Risk Node-Negative Triple-Negative Invasive Breast CancerPrimary completion
Therapeutic landscape
Therapies with a regulatory footing for this condition, alongside the wider set of agents co-studied with it in the literature.
Approved & established therapies
Paclitaxelapproved
Generic approval — Apexelsin monotherapy is indicated for the treatment of metastatic breast cancer in adult… (2024)
Trastuzumabapproved
Original application approval — Metastatic breast cancer (MBC) For the treatment of adult patients with HER2-positive MBC… (2024)
Trastuzumab deruxtecanapproved
Conditional marketing authorisation — Breast cancerHER2-positive breast cancerEnhertu as monotherapy is indicated for the treat… (2021)
Melphalan hydrochlorideapproved
Original application approval — High-dose of Phelinun used alone or in combination with other cytotoxic medicinal product… (2020)
Clinical trials
The current development programme across all trial phases.
Clinical programme
18
6
7
6
Late-stage studies
Recruiting
Recently completed
Regulatory timeline
Drug regulatory events matched to this condition by indication — EMA.
First approvals
2021emaConditional marketing authorisation — Trastuzumab deruxtecan· Breast cancerHER2-positive breast cancerEnhertu as monotherapy is indicated for the treatment of adult patients with unresectable or metastatic HER2-positive breast cancer who have received one or more prior anti-HER2-based regimens.HER2-low and HER2-ultralow breast cancerEnhertu as monotherapy is indicated for the treatment of adult patients with unresectable or metastatic hormone receptor (HR)-positive, HER2-low or HER2-ultralow breast cancer who have received at least one endocrine therapy in the metastatic setting and who are not considered suitable for endocrine therapy as the next line of treatment (see sections 4.2 and 5.1). HER2-low breast cancer who have received prior chemotherapy in the metastatic setting or developed disease recurrence during or within 6 months of completing adjuvant chemotherapy (see section 4.2). Non-small cell lung cancer (NSCLC)Enhertu as monotherapy is indicated for the treatment of adult patients with advanced NSCLC whose tumours have an activating HER2 (ERBB2) mutation and who require systemic therapy following platinum-based chemotherapy with or without immunotherapy.Gastric cancer Enhertu as monotherapy is indicated for the treatment of adult patients with advanced HER2-positive gastric or gastroesophageal junction (GEJ) adenocarcinoma who have received a prior trastuzumab-based regimen. source ↗
Product approvals and authorisations
2024emaOriginal application approval — Trastuzumab· Metastatic breast cancer (MBC) For the treatment of adult patients with HER2-positive MBC: as monotherapy for the treatment of those patients who have received at least two chemotherapy regimens for their metastatic disease. Prior chemotherapy must have included at least an anthracycline and a taxane unless patients are unsuitable for these treatments. Hormone receptor positive patients must also have failed hormonal therapy unless patients are unsuitable for these treatments. in combination with paclitaxel for the treatment of those patients who have not received chemotherapy for their metastatic disease and for whom an anthracycline is not suitable in combination with docetaxel for the treatment of those patients who have not received chemotherapy for their metastatic disease in combination with an aromatase inhibitor for the treatment of postmenopausal patients with hormone-receptor positive MBC, not previously treated with trastuzumab Early breast cancer (EBC) For the treatment of adult patients with HER2-positive EBC: following surgery, chemotherapy (neoadjuvant or adjuvant) and radiotherapy (if applicable) following adjuvant chemotherapy with doxorubicin and cyclophosphamide, in combination with paclitaxel or docetaxel. in combination with adjuvant chemotherapy consisting of docetaxel and carboplatin. in combination with neoadjuvant chemotherapy followed by adjuvant HD201 therapy, for locally advanced (including inflammatory) disease or tumours >2 cm in diameter. HD201 should only be used in patients with MBC or EBC whose tumours have either HER2 overexpression or HER2 gene amplification as determined by an accurate and validated assay. Metastatic gastric cancer (MGC) In combination with capecitabine or 5-fluorouracil and cisplatin for the treatment of adult patients with HER2-positive metastatic adenocarcinoma of the stomach or gastroesophageal junction who have not received prior anti-cancer treatment for their metastatic disease. HD201 should only be used in patients with MGC whose tumours have HER2 overexpression as defined by Immunohistochemistry (IHC) 2+ and a confirmatory silver-enhanced in situ hybridisation (SISH) or fluorescence in situ hybridisation (FISH) result, or by an IHC 3+ result. Accurate and validated assay methods should be used. source ↗
2024emaGeneric approval — Paclitaxel· Apexelsin monotherapy is indicated for the treatment of metastatic breast cancer in adult patients who have failed first-line treatment for metastatic disease and for whom standard, anthracycline containing therapy is not indicated. Apexelsin in combination with gemcitabine is indicated for the first-line treatment of adult patients with metastatic adenocarcinoma of the pancreas. Apexelsin in combination with carboplatin is indicated for the first-line treatment of non-small cell lung cancer in adult patients who are not candidates for potentially curative surgery and/or radiation therapy. source ↗
2024emaGeneric approval — Paclitaxel· Naveruclif monotherapy is indicated for the treatment of metastatic breast cancer in adult patients who have failed first-line treatment for metastatic disease and for whom standard, anthracycline containing therapy is not indicated (see section 4.4). Naveruclif in combination with gemcitabine is indicated for the first-line treatment of adult patients with metastatic adenocarcinoma of the pancreas. Naveruclif in combination with carboplatin is indicated for the first-line treatment of non-small cell lung cancer in adult patients who are not candidates for potentially curative surgery and/or radiation therapy. source ↗
2020emaOriginal application approval — Melphalan hydrochloride· High-dose of Phelinun used alone or in combination with other cytotoxic medicinal products and/or total body irradiation is indicated in the treatment of: multiple myeloma, malignant lymphoma (Hodgkin, non-Hodgkin lymphoma), acute lymphoblastic and myeloblastic leukemia, childhood neuroblastoma, ovarian cancer, mammary adenocarcinoma. Phelinun in combination with other cytotoxic medicinal products is indicated as reduced intensity conditioning (RIC) treatment prior to allogeneic haematopoietic stem cell transplantation (allo-HSCT) in malignant haematological diseases in adults. Phelinun in combination with other cytotoxic medicinal products is indicated as conditioning regimen prior to allogeneic haematopoietic stem cell transplantation in haematological diseases in the paediatric population as: Myeloablative conditioning (MAC) treatment in case of malignant haematological diseases RIC treatment in case of non-malignant haematological diseases. source ↗
2020emaBiosimilar approval — Trastuzumab· Breast cancer Metastatic breast cancer Zercepac is indicated for the treatment of adult patients with HER2 positive metastatic breast cancer (MBC): as monotherapy for the treatment of those patients who have received at least two chemotherapy regimens for their metastatic disease. Prior chemotherapy must have included at least an anthracycline and a taxane unless patients are unsuitable for these treatments. Hormone receptor positive patients must also have failed hormonal therapy, unless patients are unsuitable for these treatments. in combination with paclitaxel for the treatment of those patients who have not received chemotherapy for their metastatic disease and for whom an anthracycline is not suitable. in combination with docetaxel for the treatment of those patients who have not received chemotherapy for their metastatic disease. in combination with an aromatase inhibitor for the treatment of postmenopausal patients with hormone-receptor positive MBC, not previously treated with trastuzumab. Early breast cancer Zercepac is indicated for the treatment of adult patients with HER2 positive early breast cancer (EBC). following surgery, chemotherapy (neoadjuvant or adjuvant) and radiotherapy (if applicable). following adjuvant chemotherapy with doxorubicin and cyclophosphamide, in combination with paclitaxel or docetaxel. in combination with adjuvant chemotherapy consisting of docetaxel and carboplatin. in combination with neoadjuvant chemotherapy followed by adjuvant Zercepac therapy, for locally advanced (including inflammatory) disease or tumours > 2 cm in diameter. Zercepac should only be used in patients with metastatic or early breast cancer whose tumours have either HER2 overexpression or HER2 gene amplification as determined by an accurate and validated assay. Metastatic gastric cancer Zercepac in combination with capecitabine or 5-fluorouracil and cisplatin is indicated for the treatment of adult patients with HER2 positive metastatic adenocarcinoma of the stomach or gastro-oesophageal junction who have not received prior anti-cancer treatment for their metastatic disease. Zercepac should only be used in patients with metastatic gastric cancer (MGC) whose tumours have HER2 overexpression as defined by IHC2+ and a confirmatory SISH or FISH result, or by an IHC 3+ result. Accurate and validated assay methods should be used. source ↗
2018emaBiosimilar approval — Trastuzumab· Metastatic breast cancer Kanjinti is indicated for the treatment of adult patients with HER2 positive metastatic breast cancer (MBC): as monotherapy for the treatment of those patients who have received at least two chemotherapy regimens for their metastatic disease. Prior chemotherapy must have included at least an anthracycline and a taxane unless patients are unsuitable for these treatments. Hormone-receptor positive patients must also have failed hormonal therapy, unless patients are unsuitable for these treatments. in combination with paclitaxel for the treatment of those patients who have not received chemotherapy for their metastatic disease and for whom an anthracycline is not suitable. in combination with docetaxel for the treatment of those patients who have not received chemotherapy for their metastatic disease. in combination with an aromatase inhibitor for the treatment of postmenopausal patients with hormone-receptor positive MBC, not previously treated with trastuzumab. Early breast cancer Kanjinti is indicated for the treatment of adult patients with HER2 positive early breast cancer (EBC): following surgery, chemotherapy (neoadjuvant or adjuvant) and radiotherapy (if applicable). following adjuvant chemotherapy with doxorubicin and cyclophosphamide, in combination with paclitaxel or docetaxel. in combination with adjuvant chemotherapy consisting of docetaxel and carboplatin. in combination with neoadjuvant chemotherapy followed by adjuvant KANJINTI therapy, for locally advanced (including inflammatory) disease or tumours > 2 cm in diameter. Kanjinti should only be used in patients with metastatic or early breast cancer whose tumours have either HER2 overexpression or HER2 gene amplification as determined by an accurate and validated assay. Metastatic gastric cancer Kanjinti in combination with capecitabine or 5-fluorouracil and cisplatin is indicated for the treatment of adult patients with HER2 positive metastatic adenocarcinoma of the stomach or gastroesophageal junction who have not received prior anti-cancer treatment for their metastatic disease. Kanjinti should only be used in patients with metastatic gastric cancer (MGC) whose tumours have HER2 overexpression as defined by IHC 2+ and a confirmatory SISH or FISH result, or by an IHC 3+ result. Accurate and validated assay methods should be used. source ↗
2018emaBiosimilar approval — Trastuzumab· Breast cancer Metastatic breast cancer Herzuma is indicated for the treatment of adult patients with HER2 positive metastatic breast cancer (MBC): as monotherapy for the treatment of those patients who have received at least two chemotherapy regimens for their metastatic disease. Prior chemotherapy must have included at least an anthracycline and a taxane unless patients are unsuitable for these treatments. Hormone receptor positive patients must also have failed hormonal therapy, unless patients are unsuitable for these treatments. in combination with paclitaxel for the treatment of those patients who have not received chemotherapy for their metastatic disease and for whom an anthracycline is not suitable. in combination with docetaxel for the treatment of those patients who have not received chemotherapy for their metastatic disease. in combination with an aromatase inhibitor for the treatment of postmenopausal patients with hormone-receptor positive MBC, not previously treated with trastuzumab. Early breast cancer Herzuma is indicated for the treatment of adult patients with HER2 positive early breast cancer (EBC): following surgery, chemotherapy (neoadjuvant or adjuvant) and radiotherapy (if applicable). following adjuvant chemotherapy with doxorubicin and cyclophosphamide, in combination with paclitaxel or docetaxel. in combination with adjuvant chemotherapy consisting of docetaxel and carboplatin. in combination with neoadjuvant chemotherapy followed by adjuvant Herzuma therapy, for locally advanced (including inflammatory) disease or tumours > 2 cm in diameter. Herzuma should only be used in patients with metastatic or early breast cancer whose tumours have either HER2 overexpression or HER2 gene amplification as determined by an accurate and validated assay. Metastatic gastric cancer Herzuma in combination with capecitabine or 5-fluorouracil and cisplatin is indicated for the treatment of adult patients with HER2 positive metastatic adenocarcinoma of the stomach or gastro-esophageal junction who have not received prior anti-cancer treatment for their metastatic disease. Herzuma should only be used in patients with metastatic gastric cancer (MGC) whose tumours have HER2 overexpression as defined by IHC2+ and a confirmatory SISH or FISH result, or by an IHC 3+ result. Accurate and validated assay methods should be used. source ↗
2017emaBiosimilar approval — Trastuzumab· Breast cancer Metastatic breast cancer Ontruzant is indicated for the treatment of adult patients with HER2 positive metastatic breast cancer (MBC): as monotherapy for the treatment of those patients who have received at least two chemotherapy regimens for their metastatic disease. Prior chemotherapy must have included at least an anthracycline and a taxane unless patients are unsuitable for these treatments. Hormone receptor positive patients must also have failed hormonal therapy, unless patients are unsuitable for these treatments. in combination with paclitaxel for the treatment of those patients who have not received chemotherapy for their metastatic disease and for whom an anthracycline is not suitable. in combination with docetaxel for the treatment of those patients who have not received chemotherapy for their metastatic disease. in combination with an aromatase inhibitor for the treatment of postmenopausal patients with hormone-receptor positive MBC, not previously treated with trastuzumab. Early breast cancer Ontruzant is indicated for the treatment of adult patients with HER2 positive early breast cancer (EBC) following surgery, chemotherapy (neoadjuvant or adjuvant) and radiotherapy (if applicable). following adjuvant chemotherapy with doxorubicin and cyclophosphamide, in combination with paclitaxel or docetaxel. in combination with adjuvant chemotherapy consisting of docetaxel and carboplatin. in combination with neoadjuvant chemotherapy followed by adjuvant Ontruzant therapy, for locally advanced (including inflammatory) disease or tumours >2 cm in diameter. Ontruzant should only be used in patients with metastatic or early breast cancer whose tumours have either HER2 overexpression or HER2 gene amplification as determined by an accurate and validated assay. Metastatic gastric cancer Ontruzant in combination with capecitabine or 5?fluorouracil and cisplatin is indicated for the treatment of adult patients with HER2 positive metastatic adenocarcinoma of the stomach or gastro-oesophageal junction who have not received prior anti-cancer treatment for their metastatic disease. Ontruzant should only be used in patients with metastatic gastric cancer (MGC) whose tumours have HER2 overexpression as defined by IHC2+ and a confirmatory SISH or FISH result, or by an IHC 3+ result. Accurate and validated assay methods should be used. source ↗
European Medicines Agency (CC BY 4.0). Events are matched to this condition by drug indication text — approvals/updates for drugs indicated for it, not disease-specific acts.
Associated genes
Genes associated with this disease in the canonical knowledge graph (Open Targets evidence). Number shows the association score.
Disease biology
Proteins whose encoding gene is associated with this disease, reached through the canonical gene→disease graph. Number shows the gene's association score.
Reference
Authoritative identity, definition & identifiers.
Synonyms
adenocarcinoma of breast, adenocarcinoma of the breast, mammary adenocarcinoma
References & data sources
- Disease identity & definition — NLM Medical Subject Headings (MeSH), public domain
- Clinical trials — ClinicalTrials.gov (U.S. National Library of Medicine)
- Related entities are derived from literature co-mention (studied together) — associative, not causal.