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ClinicalTrials.gov public records Last synced Oct 5, 2026, 2:18 PM EDT

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Showing 1–1 of 1 matching trial from the live ClinicalTrials.gov search.
Filters: Intervention: H3B-6545 (150, 300, 450 mg) Clear all
Active, not recruiting Phase 1 Interventional Results available

A Study of H3B-6545 in Combination With Palbociclib in Women With Advanced or Metastatic Estrogen Receptor-Positive Human Epidermal Growth Factor Receptor-2 (HER2)-Negative Breast Cancer

NCT04288089
View directory record Official record
Conditions
Receptors, Estrogen, Genes, Erbb-2, Breast Neoplasms
Interventions
Palbociclib (75, 100, 125 milligram [mg]), H3B-6545 (150, 300, 450 mg)
Drug
Lead sponsor
Eisai Inc.
Industry
Eligibility
18 Years and older · Female only
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
5
States / cities
Sarasota, Florida • Boston, Massachusetts • Kansas City, Missouri + 2 more
Source: ClinicalTrials.gov public record
Updated Aug 27, 2026 · Synced Oct 5, 2026, 2:18 PM EDT