Mirdametinib
Her2-Receptor Negative Breast Cancer
Explore 186 assets in Her2-Receptor Negative Breast Cancer →Floatz Rating
CC42/100
Confidence
Indicative
Sponsor
Memorial Sloan Kettering Cancer Center
Modality
Small molecule
Development Phase
Phase 1/2
Status
Active
Evidence ledger · v0.2
Clinical Evidence
Clinical track record: trial progression, reported outcomes, safety signals, and endpoint quality.
34Moderate confidence
Detailed axis rationale is planned and will be published soon.
| Trial | Phase | Status | N | Primary endpoint | Readout |
|---|---|---|---|---|---|
NCT05054374CT.gov A Study of Mirdametinib on Its Own or in Combination With Fulvestrant in People With Solid Tumor 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-Receptor Negative Breast Cancer
| Asset | Sponsor | Phase | Rating |
|---|---|---|---|
| Mirdametinib (this asset) | Memorial Sloan Kettering Cancer Center | P1/2 | CC · 42 |
| Palbociclib | Helwan University | P2 | BBB |
| Exemestane | National Cancer Institute (NCI) | P4 | BBB |
| Pembrolizumab | UNC Lineberger Comprehensive Cancer Center | P2 | BBB |
| Atezolizumab | TransThera Sciences (Nanjing), Inc. | P2 | BB |
| Durvalumab | National Cancer Institute (NCI) | P3 | BB |
| Docetaxel | Jiangsu Hansoh Pharmaceutical Co., Ltd. | P2/3 | BB |
| Capecitabine | Kristina A. Fanucci | P4 | BB |
| Palazestrant | Olema Pharmaceuticals, Inc. | P3 | BB |
+42 more in the Her2-Receptor Negative Breast Cancer cohort
Other indications for Mirdametinib
| Indication | Sponsor | Phase | Rating |
|---|---|---|---|
| Melanoma | — | P2 | CCC · 54 |
| Neurofibromatosis Type 1 | — | P2 | CCC · 50 |
| B-Cell Chronic Lymphocytic Leukemia | — | P2 | CCC · 50 |
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. Mirdametinib in Her2-Receptor Negative 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/mirdametinib-her2-receptor-negative-breast-cancer
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