本研究旨在評估研究藥物 abemaciclib 在高風險、淋巴結陽性、早期、荷爾蒙受體陽性(HR+)、人類表皮受體2陰性(HER2-)乳癌參與者中的安全性與療效。
適應症:Breast Cancer
收案條件
納入條件
- Women (regardless of menopausal status) or men ≥18 years of age (or per local regulations).
- The participant has confirmed HR+, HER2-, early stage resected invasive breast cancer without evidence of distant metastases.
- The participant must have undergone definitive surgery of the primary breast tumor.
- The participant must have tumor tissue from breast (preferred) or lymph node for exploratory biomarker analysis available prior to randomization.
- Pathologic lymph node involvement and at least one of the following indicating a higher risk of recurrence:
- or more positive axillary lymph nodes
- Tumor size of at least 5 centimeters
- Grade 3 defined as at least 8 points on the Bloom Richardson grading system
- Ki-67 index by central analysis of ≥20% on untreated breast tissue
- The participant must be randomized within 16 months from the time of definitive breast cancer surgery.
- The participant may receive up to 12 weeks of endocrine therapy until randomization following the last non-endocrine therapy (surgery, chemotherapy, or radiation) whichever is last.
- Participants must have recovered (grade ≤1) from the acute effects of chemotherapy and radiotherapy and from surgical side effects following definitive breast surgery.
- Women of reproductive potential must have a negative blood pregnancy test and agree to use highly effective contraceptive methods.
- The participant has a Eastern Cooperative Oncology Group (ECOG) performance status ≤1.
- The participant has adequate organ function.
- The participant is able to swallow oral medications.
排除條件
- Metastatic disease (including contralateral axillary lymph nodes) or node-negative disease.
- Participants with inflammatory breast cancer.
- Participants with a history of previous breast cancer, with the exception of ipsilateral ductal carcinoma in situ (DCIS) treated by locoregional therapy alone ≥5 years ago. Participants with a history of contralateral DCIS treated by local regional therapy at any time may be eligible. Participants with a history of any other cancer (except non-melanoma skin cancer or carcinoma in situ of the cervix), unless in complete remission with no therapy for a minimum of 5 years from the date of randomization are excluded.
- Females who are pregnant or lactating.
- The participant has previously received treatment with any CDK4 and CDK6 inhibitor.
- The participant is receiving concurrent exogenous reproductive hormone therapy (for example, birth control pills, hormone replacement therapy, or megestrol acetate).
- The participant has previously received endocrine therapy for breast cancer prevention (tamoxifen or aromatase inhibitors) or raloxifene.
- The participant has serious preexisting medical condition(s) that, in the judgment of the investigator, would preclude participation in this study.
- The participant has a personal history of any of the following conditions: syncope of cardiovascular etiology, ventricular arrhythmia of pathological origin or sudden cardiac arrest. Any participant with a history of venous thromboembolism (VTE).
- The participant has active systemic infections or viral load.
- The participant has received an experimental treatment in a clinical trial within the last 30 days or 5 half-lives, whichever is longer.
收案條件維持 ClinicalTrials.gov 原始英文登錄資料,實際收案資格以研究團隊的正式評估與受試者同意書為準。資料來源:ClinicalTrials.gov,每兩週自動更新,最後同步:2026年10月8日。