A Single-center Study of the Outcome of Tucidinostat-Based Therapy in Hormone Receptor-Positive Metastatic Breast Cancer Patients Previously Treated With CDK4/6 Inhibitor Therapy
Trial Snapshot
- Phase
- Not Applicable
- Sponsor
- Enrollment
- 50
- Locations
- 1
- Primary Endpoint
- PFS
Study Overview
Brief Summary
To evaluate the efficacy of tucidinostat-based therapy in hormone receptor-positive metastatic breast cancer patients previously treated with CDK4/6 inhibitor therapy in the real world.
Detailed Description
Cyclin-dependent kinase (CDK) 4/6 inhibitors have changed the treatment pattern of patients with hormone receptor-positive HER2-negative advanced breast cancer significantly prolongling patients'PFS and OS,but there is no optimal therapy after its progression.Tucidinostat (formerly known as chidamide) is an oral subtype-selective histone deacetylase inhibitor, ACE trial demonstrated that tucidinostat plus exemestane improved PFS compared with placebo plus exemestane in HR+,MBC patients that progressed after previous endocrine therapy,only 7 patients enrolled in the trial had previously received CDK4/6 inhibitors.The aim of this trial is to evaluate the efficacy of tucidinostat-based therapy in hormone receptor-positive metastatic breast cancer patients previously treated with CDK4/6 inhibitor therapy in the real world.
Study Design
- Study Type
- Observational
- Observational Model
- Cohort
- Time Perspective
- Retrospective
Eligibility Criteria
- Ages
- 18 Years to — (Adult, Older Adult)
- Sex
- Female
- Accepts Healthy Volunteers
- No
Inclusion Criteria
- •1.woman, age > 18 years old 2.Diagnosed with HR+/HER2- Metastatic Breast Cancer 3.Patients received tucidinostat-based therapy after progression on CDK4/6 inhibitor 4.Complete medical history was available
Exclusion Criteria
- •1.Medical history was incomplete
Arms & Interventions
Tucidinostat-based therapy
30 mg tucidinostat was given orally(as six 5 mg tablets per day) twice a week (either, Monday and Thursday, Tuesday and Friday, or Wednesday and Saturday) for 4 consecutive weeks in a 4-week cycle.The endocrine drugs combined with tucidinostat were given based on previous treatment.Patients received tucidinostat-based treatment until disease progression or intolerable adverse events.
Intervention: Tucidinostat (Drug)
Outcomes
Primary Outcomes
PFS
Time Frame: 6 weeks
Progression free survival
Secondary Outcomes
- Adverse events(6 weeks)