4-hydroxytamoxifen
Atypical Lobular Breast Hyperplasia
Explore 2 assets in Atypical Lobular Breast Hyperplasia →Floatz Rating
CCC53/100
Confidence
Indicative
Sponsor
Mayo Clinic
Modality
UNKNOWN
Development Phase
Phase 2
Status
Dormant
Evidence ledger · v0.2
Clinical Evidence
Clinical track record: trial progression, reported outcomes, safety signals, and endpoint quality.
38Moderate confidence
Detailed axis rationale is planned and will be published soon.
| Trial | Phase | Status | N | Primary endpoint | Readout |
|---|---|---|---|---|---|
NCT04570956CT.gov Oral Tamoxifen vs. TamGel vs. Control in Women With Atypical Hyperplasia, Lobular Carcinoma In Situ, or Increased Breast Cancer Risk | — | Terminated | — | — | — |
Competitive Position
Competitive setting: how crowded the indication is, class-level failures, and timing against rivals.
95Indicative
Detailed axis rationale is planned and will be published soon.
Same indication · Atypical Lobular Breast Hyperplasia
| Asset | Sponsor | Phase | Rating |
|---|---|---|---|
| 4-hydroxytamoxifen (this asset) | Mayo Clinic | P2 | CCC · 53 |
| Ruxolitinib | Julie Nangia | P2 | B |
| Tamoxifen | Dana-Farber Cancer Institute | P2 | CCC |
| Exemestane | Dana-Farber Cancer Institute | P2 | CCC |
| Bexarotene | National Cancer Institute (NCI) | P1 | CC |
| som230 | NYU Langone Health | P1 | CC |
| Pasireotide | NYU Langone Health | P1 | CC |
Other indications for 4-hydroxytamoxifen
| Indication | Sponsor | Phase | Rating |
|---|---|---|---|
| Lobular Breast Carcinoma In Situ | — | P2 | CCC · 53 |
| Breast Carcinoma | — | P2 | CCC · 53 |
| Breast Cancer | — | N/A | D · 26 |
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. 4-hydroxytamoxifen in Atypical Lobular Breast Hyperplasia. 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/4-hydroxytamoxifen-atypical-lobular-breast-hyperplasia
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