Floatz Rating
B60/100
Confidence
Indicative
Sponsor
Samsung Medical Center
Modality
monoclonal_antibody
Development Phase
Phase 3
Status
Active
Evidence ledger · v0.2
Clinical Evidence
Clinical track record: trial progression, reported outcomes, safety signals, and endpoint quality.
57High confidence
Detailed axis rationale is planned and will be published soon.
| Trial | Phase | Status | N | Primary endpoint | Readout |
|---|---|---|---|---|---|
NCT03881878CT.gov TAHP for Patients With HER2-positive Early Breast Cancer and Subsequent AHP Adjuvant tHerapy After Surgery | — | Unknown | — | — | — |
NCT03894007CT.gov Improving Pre-operative Systemic Therapy for Human Epidermal Growth Factor Receptor 2 (HER2) Amplified Breast Cancer | — | Terminated | — | — | — |
NCT03199885CT.gov Testing the Drug Atezolizumab or Placebo With Usual Therapy in First-Line HER2-Positive Metastatic Breast Cancer | — | Terminated | — | — | — |
NCT03841110CT.gov FT500 as Monotherapy and in Combination With Immune Checkpoint Inhibitors in Subjects With Advanced Solid Tumors | — | Completed | — | — | — |
NCT03650348CT.gov PRS-343 in Combination With Atezolizumab in HER2-Positive Solid Tumors | — | Completed | — | — | — |
NCT03417544CT.gov Atezolizumab + Pertuzumab + Trastuzumab In CNS Mets In BC | — | Active Not Recruiting | — | — | — |
NCT03125928CT.gov Clinical Trial of Atezolizumab With Paclitaxel, Trastuzumab, and Pertuzumab in Patients With Metastatic HER-2 Positive Breast Cancer | — | Active Not Recruiting | — | — | — |
NCT02605915CT.gov Safety and Pharmacokinetics of Atezolizumab Combination Treatments in Participants With HER2-Positive and HER2-Negative Breast Cancer | — | Completed | — | — | — |
Competitive Position
Competitive setting: how crowded the indication is, class-level failures, and timing against rivals.
65High confidence
Detailed axis rationale is planned and will be published soon.
Same indication · HER2 Positive Breast Carcinoma
| Asset | Sponsor | Phase | Rating |
|---|---|---|---|
| Atezolizumab (this asset) | Samsung Medical Center | P3 | B · 60 |
| Trastuzumab | SWOG Cancer Research Network | P4 | BB |
| Pertuzumab | SWOG Cancer Research Network | P4 | BB |
| Ribociclib | Danish Breast Cancer Cooperative Group | P3 | BB |
| Cyclophosphamide | National University Hospital, Singapore | P3 | BB |
| Docetaxel | Ohio State University Comprehensive Cancer Center | P3 | BB |
| Vinorelbine Ditartrate | Fudan University | P3 | BB |
| Capecitabine | MedSIR | P4 | BB |
| Trastuzumab Emtansine | SWOG Cancer Research Network | P4 | BB |
+42 more in the HER2 Positive Breast Carcinoma cohort
Other indications for Atezolizumab
| Indication | Sponsor | Phase | Rating |
|---|---|---|---|
| Metastatic Neoplasm | — | P2/3 | BB · 71 |
| Her2-Receptor Negative Breast Cancer | — | P2 | BB · 69 |
| Bladder Transitional Cell Carcinoma | — | P3 | BB · 68 |
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. Atezolizumab in HER2 Positive Breast Carcinoma. 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/atezolizumab-her2-positive-breast-carcinoma
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