Floatz Rating
CC42/100
Confidence
Indicative
Sponsor
Eisai Inc.
Modality
UNKNOWN
Development Phase
Phase 1/2
Status
Dormant
Evidence ledger · v0.2
Clinical Evidence
Clinical track record: trial progression, reported outcomes, safety signals, and endpoint quality.
37Moderate confidence
Detailed axis rationale is planned and will be published soon.
| Trial | Phase | Status | N | Primary endpoint | Readout |
|---|---|---|---|---|---|
NCT03250676CT.gov Trial of H3B-6545, in Women With Locally Advanced or Metastatic Estrogen Receptor-positive, HER2 Negative 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 |
|---|---|---|---|
| h3b-6545 (this asset) | Eisai Inc. | P1/2 | CC · 42 |
| 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 h3b-6545
| Indication | Sponsor | Phase | Rating |
|---|---|---|---|
| Breast Neoplasm | — | P1/2 | CCC · 53 |
| Breast Adenocarcinoma | — | P1/2 | CCC · 50 |
| HER2 Positive Breast Carcinoma | — | P1 | CC · 43 |
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. h3b-6545 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/h3b-6545-breast-cancer
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