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Clinical Trial Summary

In this research study, investigators are testing if a dose-increasing strategy for abemaciclib will have less side effects and be better tolerated than the standard dosage of abemaciclib for participants with early-stage high-risk hormone receptor positive breast cancer. The names of the study drugs involved in this study are: - Abemaciclib (CDK4 and CDK6 inhibitor) - Tamoxifen (Selective estrogen receptor modulator) - Anastrozole/Letrozole (Non-steroidal aromatase inhibitors) - Exemestane (steroidal aromatase inhibitor) - LHRH (Gonadotropin-releasing hormone agonist, or Luteinizing hormone-releasing hormone agonist)


Clinical Trial Description

This research study is a prospective, single-arm, open label, phase 2 study designed to evaluate if a dose-increasing strategy for abemaciclib will have less side effects and be better tolerated than the standard dosage of abemaciclib for participants with early-stage high-risk hormone receptor positive breast cancer. This research study involves adjuvant abemaciclib plus endocrine (anti-hormone) therapy that works to target breast cancer. Adjuvant therapy is treatment given after surgery, chemotherapy, and/or radiation therapy. The U.S. Food and Drug Administration (FDA) has approved abemaciclib as a treatment option for early-stage high-risk hormone receptor breast cancer. The FDA has also approved hormonal therapies as treatment for hormone receptor positive breast cancer. The research study procedures include screening for eligibility, study treatment including laboratory evaluations and questionnaires, blood tests, tumor biopsies, and stool collections. Participation in this research study is expected to last for at least 2 years and up to 5 years. It is expected that about 90 people will take part in this research study. Eli Lilly and Company is supporting this study by providing funding for the study and supplying the study drug, abemaciclib. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT06001762
Study type Interventional
Source Dana-Farber Cancer Institute
Contact Erica Mayer, MD, MPH
Phone (617) 632-3800
Email EMAYER@PARTNERS.ORG
Status Recruiting
Phase Phase 2
Start date October 5, 2023
Completion date January 1, 2027

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