Trastuzumab Deruxtecan
Estrogen-Receptor Positive Breast Cancer
Explore 74 assets in Estrogen-Receptor Positive Breast Cancer →Floatz Rating
BB64/100
Confidence
Indicative
Sponsor
Danish Breast Cancer Cooperative Group
Modality
antibody_drug_conjugate
Development Phase
Phase 3
Status
Active
Evidence ledger · v0.2
Clinical Evidence
Clinical track record: trial progression, reported outcomes, safety signals, and endpoint quality.
52Moderate confidence
Detailed axis rationale is planned and will be published soon.
| Trial | Phase | Status | N | Primary endpoint | Readout |
|---|---|---|---|---|---|
NCT06585969CT.gov A Randomised Trial Comparing Trastuzumab Deruxtecan to CDK4/6 Inhibitors in Non-luminal A, ER-positive/HER2-low Metastatic Breast Cancer | — | Withdrawn | — | — | — |
NCT06439693CT.gov The SAPPHO Study: Sequential Therapy With Curative Intent in de Novo HER2+ Metastatic Breast Cancer | — | Recruiting | — | — | — |
Competitive Position
Competitive setting: how crowded the indication is, class-level failures, and timing against rivals.
89High confidence
Detailed axis rationale is planned and will be published soon.
Same indication · Estrogen-Receptor Positive Breast Cancer
| Asset | Sponsor | Phase | Rating |
|---|---|---|---|
| Trastuzumab Deruxtecan (this asset) | Danish Breast Cancer Cooperative Group | P3 | BB · 64 |
| Exemestane | National Cancer Institute (NCI) | P4 | BBB |
| Everolimus | UNC Lineberger Comprehensive Cancer Center | P4 | BBB |
| Tamoxifen | Dana-Farber Cancer Institute | P4 | BB |
| Abemaciclib | Jonsson Comprehensive Cancer Center | P3 | BB |
| Palbociclib | Forward Pharmaceuticals Co., Ltd. | P3 | BB |
| Capivasertib | Imperial College London | P2 | BB |
| Giredestrant | Hoffmann-La Roche | P3 | BB |
| Ribociclib | National Cancer Institute (NCI) | P3 | BB |
+42 more in the Estrogen-Receptor Positive Breast Cancer cohort
Other indications for Trastuzumab Deruxtecan
| Indication | Sponsor | Phase | Rating |
|---|---|---|---|
| Breast Carcinoma | — | P4 | BBB · 75 |
| Breast Cancer | — | P4 | BB · 66 |
| Metastatic Malignant Neoplasm In The Brain | — | P4 | BB · 66 |
Scientific Foundation
Strength of the underlying biology: target validation, tractability, modality fit, and how related mechanisms have fared.
NR
Planned for methodology v0.2.
Development Feasibility
How realistically the program can be executed, drawing on modality precedent, enrollment dynamics, and sponsor delivery.
NR
Planned for methodology v0.2.
Commercial Opportunity
Commercial prize: addressable population, unmet need, and the value case for the indication.
NR
Planned for methodology v0.2.
IP & Exclusivity
Exclusivity position, covering patent protection and freedom-to-operate runway.
NR
Planned for methodology v0.2.
Manufacturing & Supply
Manufacturing and supply readiness, driven by modality process and scale-up risk.
NR
Planned for methodology v0.2.
Related assets
Citation
Floatz Terminal. Trastuzumab Deruxtecan in Estrogen-Receptor Positive Breast Cancer. Methodology v0.2. Rated under v0.2 effective July 8, 2026. Last refreshed July 8, 2026. Accessed July 14, 2026. https://terminal.floatz.ai/assets/trastuzumab-deruxtecan-estrogen-receptor-positive-breast-cancer
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