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A Phase 1 Study of Oral OP-1250 in Combination With Palbociclib in HR+/HER2- Breast Cancer Patients
Sponsor: Olema Pharmaceuticals, Inc.
Summary
This is an open-label, Phase 1b dose escalation and expansion study to determine the maximum tolerated dose (MTD) of OP-1250 in combination with palbociclib (Ibrance®️, Pfizer Inc.). Purpose of study is to evaluate the safety and pharmacokinetic (PK) profile, and estimate the preliminary anti-tumor activity of the combination in adult subjects with hormone receptor-positive (ER+ / HER2-) advanced or metastatic breast cancer (MBC).
Official title: A Phase 1 Dose Escalation and Expansion Open-label, Multicenter, Study of OP-1250 in Combination With the CDK4/6 Inhibitor Palbociclib in Adult Subjects With Advanced or Metastatic HR-positive, HER2-negative Breast Cancer
Key Details
Gender
All
Age Range
18 Years - Any
Study Type
INTERVENTIONAL
Enrollment
60
Start Date
2021-12-10
Completion Date
2026-03
Last Updated
2025-11-24
Healthy Volunteers
No
Conditions
Interventions
Palazestrant
Complete Estrogen Receptor Antagonist
Palbociclib
Palbociclib is an approved CDK 4/6 Inhibitor drug
Locations (8)
Clinical Trial Site
Waratah, New South Wales, Australia
Clinical Trial Site
Westmead, New South Wales, Australia
Clinical Trial Site
South Brisbane, Queensland, Australia
Clinical Trial Site
Southport, Queensland, Australia
Clinical Trial Site
Clayton, Victoria, Australia
Clinical Trial Site
Frankston, Victoria, Australia
Clinical Trial Site
Geelong, Victoria, Australia
Clinical Trial Site
Nedlands, Western Australia, Australia