本研究的主要目的是量度 imlunestrant 與標準荷爾蒙治療相比，在雌激素受體陽性（ER+）及人類表皮受體2陰性（HER2-）的早期乳癌參與者中的療效。參與者必須已接受荷爾蒙治療兩至五年，且其癌症復發風險必須高於平均水平。參與研究時間可長達10年。
適應症：Breast Neoplasms
收案條件
納入條件
- Have a diagnosis of ER+, HER2- early-stage, resected, invasive breast cancer without evidence of distant metastasis.
- Participants must have received at least 24 months but not more than 60 months of any adjuvant ET, from time of adjuvant ET initiation.
- Participants may have received (neo) adjuvant chemotherapy and/or targeted therapy with a CDK4/6- or PARP- inhibitor.
- Must have an increased risk of disease recurrence based on clinical-pathological risk features.
- Have a Performance Status of 0 or 1 on the Eastern Cooperative Oncology Group scale.
- Have adequate organ function.
排除條件
- Have any evidence of metastatic disease (including contralateral ALN) or inflammatory breast cancer at primary breast cancer diagnosis.
- Participants with more than a 6-month consecutive gap in therapy during the course of prior adjuvant ET.
- Participants who have completed or discontinued prior adjuvant ET \>6 months prior to screening.
- Participants with a history of previous breast cancer are excluded, with the exception of ipsilateral DCIS treated by locoregional therapy alone ≥5 years ago.
- Pregnant, breastfeeding, or expecting to conceive or father children within the projected duration of the trial, starting with the screening visit through 180 days after the last dose of study intervention.
- Participant has previously received ET of any duration for breast cancer prevention (tamoxifen or AIs) or raloxifene.
- Participants with a history of any other cancer.
- Have serious preexisting medical conditions that, in the judgment of the investigator, would preclude participation in this study.
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。