Floatz Rating
B56/100
Confidence
Indicative
Sponsor
Merck Sharp & Dohme LLC
Modality
UNKNOWN
Development Phase
Phase 2
Status
Active
Evidence ledger · v0.2
Clinical Evidence
Clinical track record: trial progression, reported outcomes, safety signals, and endpoint quality.
54High confidence
Detailed axis rationale is planned and will be published soon.
| Trial | Phase | Status | N | Primary endpoint | Readout |
|---|---|---|---|---|---|
NCT06797635CT.gov Study of Patritumab Deruxtecan Plus Pembrolizumab With Other Anticancer Agents in Participants With High-Risk Early-Stage Triple-Negative or Hormone Receptor-Low Positive/HER-2 Negative Breast Cancer (MK-1022-010, HERTHENA-Breast-03) | — | Recruiting | — | — | — |
NCT06686394CT.gov Study of Patritumab Deruxtecan With Other Anticancer Agents in Participants With HER2 Positive Breast Cancer That Has Spread and Cannot Be Surgically Removed (MK-1022-009) | — | Recruiting | — | — | — |
NCT06298084CT.gov Dose-Expansion Modular Study To Explore the Safety, Tolerability, and Anti-tumor Activity of HER3- DXd Monotherapy and Combinations in Patients With Inoperable Advanced Breast Cancer (ABC) After Progression on T-DXd | — | Recruiting | — | — | — |
NCT05865990CT.gov HER3-DXd in Breast Cancer and NSCLC Brain Metastases and Solid Tumor Leptomeningeal Disease | — | Completed | — | — | — |
NCT05569811CT.gov NeoadjuVAnt muLti-agENT Chemotherapy or Patritumab Deruxtecan With or Without endocrINE Therapy for High-risk HR+/HER2- Breast Cancer - VALENTINE Trial | — | Active Not Recruiting | — | — | — |
NCT02980341CT.gov Phase I/II Study of U3-1402 in Subjects With Human Epidermal Growth Factor Receptor 3 (HER3) Positive Metastatic Breast Cancer | — | Completed | — | — | — |
Competitive Position
Competitive setting: how crowded the indication is, class-level failures, and timing against rivals.
59High confidence
Detailed axis rationale is planned and will be published soon.
Same indication · Breast Cancer
| Asset | Sponsor | Phase | Rating |
|---|---|---|---|
| Patritumab Deruxtecan (this asset) | Merck Sharp & Dohme LLC | P2 | B · 56 |
| Darolutamide | Vandana Abramson | P2 | BBB |
| Pertuzumab | SWOG Cancer Research Network | P4 | BB |
| Palbociclib | Hoffmann-La Roche | P4 | BB |
| Trastuzumab Duocarmazine | Byondis B.V. | P3 | BB |
| Goserelin | TerSera Therapeutics LLC | P4 | BB |
| Ribociclib | National Cancer Institute (NCI) | P4 | BB |
| Oxaliplatin | Beijing Biostar Pharmaceuticals Co., Ltd. | P4 | BB |
| Eribulin Monomethanesulfonate | Henan Cancer Hospital | P4 | BB |
+42 more in the Breast Cancer cohort
Other indications for Patritumab Deruxtecan
| Indication | Sponsor | Phase | Rating |
|---|---|---|---|
| Non-Small Cell Lung Carcinoma | — | P3 | BB · 66 |
| Breast Neoplasm | — | P3 | B · 60 |
| Non-Small Cell Squamous Lung Carcinoma | — | P2 | B · 57 |
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. Patritumab Deruxtecan in 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/patritumab-deruxtecan-breast-cancer
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