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A Study of Tersolisib (LY4064809) and Abemaciclib With Hormone Therapies in Participants With PIK3CA-Mutated Early Breast Cancer (PIKALO-3)

2026年11月9日 更新者：Eli Lilly and Company

A Phase 2, Open-label, Randomized Study Investigating the Tolerability of Concurrent Versus Staggered Administration of Abemaciclib and Endocrine Therapy With Tersolisib in Patients With HR+, HER2- Node-Positive, PIK3CA-Mutated Early Breast Cancer.

The main purpose of this study is to compare two ways of giving the anti-cancer medicines abemaciclib and hormone therapy with tersolisib in participants with early breast cancer that has a genetic mutation (PIK3CA mutation).

For each participant, the study will last up to 56 weeks and include 12 visits.

研究概览

地位

尚未招聘

条件

干预/治疗

研究类型

介入性

注册 (估计的)

120

阶段

  • 阶段2

联系人和位置

本节提供了进行研究的人员的详细联系信息，以及有关进行该研究的地点的信息。

学习联系方式

  • 姓名：Trial questions or participation questions: 1-877-CTLILLY (1-877-285-4559) or
  • 电话号码：1-317-615-4559
  • 邮箱：LillyTrials@Lilly.com

研究联系人备份

学习地点

  • 美国
    • California
      • Los Alamitos、California、美国、90720
        • Cancer and Blood Specialty Clinic
        • 首席研究员：
          • Sassan Farjami
    • Colorado
      • Lakewood、Colorado、美国、80228
        • USO - Rocky Mountain Cancer Centers
        • 首席研究员：
          • Sara Robinson
    • Georgia
      • Atlanta、Georgia、美国、30308
        • Winship Cancer Institute, Emory University
        • 首席研究员：
          • Manali Bhave
    • Massachusetts
      • Boston、Massachusetts、美国、02215
        • Dana-Farber Cancer Institute
        • 首席研究员：
          • Erica Mayer
    • Ohio
      • Columbus、Ohio、美国、43212
        • Stefanie Spielman Comprehensive Breast Center
        • 首席研究员：
          • Robert Wesolowski
    • Texas
      • Amarillo、Texas、美国、79106
        • Texas Oncology - West Texas
        • 首席研究员：
          • Ines Sanchez-Rivera
      • Austin、Texas、美国、78731
        • Texas Oncology - Balcones
        • 首席研究员：
          • Kathryn Hudson
      • San Antonio、Texas、美国、78229-3307
        • South Texas Accelerated Research Therapeutics (START)
        • 首席研究员：
          • Amita Patnaik
    • Virginia
      • Reston、Virginia、美国、20190
        • USO - Virginia Cancer Specialists
        • 首席研究员：
          • Isabelle Le

参与标准

研究人员寻找符合特定描述的人，称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。

资格标准

适合学习的年龄

18年 及以上 (成人、年长者)

接受健康志愿者

不

有资格学习的性别

全部

描述

Inclusion Criteria:

  • Have histologically or cytologically confirmed breast cancer, defined as individuals with:

    • early stage, resected, invasive breast cancer without evidence of distant metastasis, and

    • have confirmed hormone receptor positive (HR+), human epidermal growth factor receptor 2 negative (HER2-) status defined by

      • Hormone Receptor (HR) status: documented estrogen receptor positive (ER+) and/or progesterone receptor+ tumor, defined as greater than or equal to (≥) 1% of tumor cells stained positive, assessed locally on primary disease specimen, as defined by American Society of Clinical Oncology College of American Pathologists (ASCO/CAP) Guidelines
      • HER status: fulfill the requirement of HER2- disease by local testing on primary disease specimen; tumor must be HER2- according to ASCO/CAP guidelines for HER2 testing

  • Have evidence of an activating phosphatidylinositol-3-kinase catalytic subunit alpha (PIK3CA) mutation in tumor tissue.

  • Must have undergone definitive locoregional therapy, defined as surgery of the primary breast tumor(s), with or without radiation therapy, and/or systemic therapy (neo/adjuvant chemotherapy and or Endocrine Therapy (ET)) per standard guidelines.

  • Individuals with bilateral breast cancer (diagnosis of invasive tumors in both breasts simultaneously or within 6 months of each other) may be eligible if all lesions tested on both sides are HR+ HER2- and adequate surgery has been performed for both breasts.

  • Tumor involvement in at least 1 axillary lymph node (ALN).

    • ≥ ipsilateral positive ALN, OR

    • 1 to 3 ipsilateral positive ALN and either:

      • tumor size ≥5cm, or
      • histologic Grade 3 tumor (as defined by a combined score of at least 8 points per the modified Bloom-Richardson grading system or equivalent

  • Individuals must be randomized within 16 months from the time of definitive breast cancer surgery.

  • May have received up to 12 weeks of ET with AIs or tamoxifen until randomization following the last non-ET (surgery, chemotherapy, or radiation), whichever is last.

  • Are willing to follow contraception requirements.

Exclusion Criteria:

  • Have evidence of

    • metastatic disease
    • inflammatory breast cancer at primary breast cancer diagnosis
    • breast cancer recurrence (local, regional, or distant), or
    • a history of previous invasive breast cancer

  • Has an established diagnosis of type 1 diabetes mellitus or type 2 diabetes mellitus with Hemoglobin A1c (HbA1c) ≥8 percent (%), fasting plasma glucose ≥140 mg/dL (7.7 mmol/L), or requiring insulin.

  • Has a history of malignancy other than breast cancer

  • Have active Hepatitis B Virus (HBV)

  • Have active Hepatitis C Virus (HCV)

  • Have untreated Human Immunodeficiency Virus (HIV) infection

  • Have any other active systemic infection requiring system therapy

  • Have a history of Kaposi sarcoma or multicentric Castleman disease

  • Have a serious cardiac condition

学习计划

本节提供研究计划的详细信息，包括研究的设计方式和研究的衡量标准。

研究是如何设计的？

设计细节

  • 主要用途：治疗
  • 分配：随机化
  • 介入模型：并行分配
  • 屏蔽：无（打开标签）

武器和干预

参与者组/臂
干预/治疗
实验性的：Arm A: Abemaciclib and Endocrine Therapy (ET) + Tersolisib - Staggered

Abemaciclib in combination with physician's choice of endocrine therapy (ET). Tersolisib will be added in a staggered approach after 2 cycles of abemaciclib and ET. All drugs will be administered orally.
药品：Abemaciclib

Administered orally

药品：Anastrozole

Administered orally

药品：Letrozole

Administered orally

药品：Exemestane

Administered orally

药品：Tersolisib

Administered orally

其他名称：
  • LY4064809
实验性的：Arm B: Abemaciclib and Endocrine Therapy (ET) + Tersolisib - Concurrent

Abemaciclib and tersolisib will be administered concurrently in combination with physician's choice of ET. All drugs will be administered orally.
药品：Abemaciclib

Administered orally

药品：Anastrozole

Administered orally

药品：Letrozole

Administered orally

药品：Exemestane

Administered orally

药品：Tersolisib

Administered orally

其他名称：
  • LY4064809

研究衡量的是什么？

主要结果指标

结果测量
大体时间
Rate of Participants who Discontinue Tersolisib Due to Treatment Emergent Adverse Events (TEAEs).
大体时间：Cycle 1 through study completion (estimated as 56 weeks)
Cycle 1 through study completion (estimated as 56 weeks)

次要结果测量

结果测量
措施说明
大体时间
Duration of Exposure to Study Intervention
大体时间：Start of study intervention through study completion (estimated as 56 weeks)

Study intervention start is defined as Cycle -1 for Arm A and Cycle 1 for Arm B. Arm A includes an additional 8 weeks.
Start of study intervention through study completion (estimated as 56 weeks)
Number of Study Intervention Dose Adjustments
大体时间：Start of study intervention through study completion (estimated as 56 weeks)

Study intervention start is defined as Cycle -1 for Arm A and Cycle 1 for Arm B. Arm A includes an additional 8 weeks.
Start of study intervention through study completion (estimated as 56 weeks)
Pharmacokinetics (PK): Predose Plasma Concentrations (Cmax) of Tersolisib
大体时间：Day 15 through study completion (estimated as 56 weeks)
Day 15 through study completion (estimated as 56 weeks)
Change from Baseline in Side-Effect Burden as Measured by Functional Assessment of Cancer Therapy - General Item GP5 (FACT-GP5)
大体时间：Baseline to end of study completion (estimated as 56 weeks)
Baseline to end of study completion (estimated as 56 weeks)

合作者和调查者

在这里您可以找到参与这项研究的人员和组织。

赞助

Eli Lilly and Company

调查人员

  • 研究主任：Call 1-877-CTLILLY (1-877-285-4559) or 1-317-615-4559 Mon - Fri 8 AM - 8 PM Eastern time (UTC/GMT - 5 hours, EST)、Eli Lilly and Company

研究记录日期

这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查，以确保它们在发布到公共网站之前符合特定的质量控制标准。

研究主要日期

学习开始 (估计的)

2026年12月1日

初级完成 (估计的)

2027年12月1日

研究完成 (估计的)

2028年1月1日

研究注册日期

首次提交

2026年11月9日

首先提交符合 QC 标准的

2026年11月9日

首次发布 (实际的)

2026年11月13日

研究记录更新

最后更新发布 (实际的)

2026年11月13日

上次提交的符合 QC 标准的更新

2026年11月9日

最后验证

2026年11月1日

更多信息

与本研究相关的术语

关键字

其他相关的 MeSH 术语

其他研究编号

  • 27842
  • 2026-526410-87-00 (克蒂斯)
  • J6M-MC-JSGH (其他标识符：Eli Lilly and Company)

计划个人参与者数据 (IPD)

计划共享个人参与者数据 (IPD)？

是的

IPD 计划说明

Anonymized individual patient level data will be provided in a secure access environment upon approval of a research proposal and a signed data sharing agreement.

IPD 共享时间框架

Data are available 6 months after the primary publication or approval of the indication studied in the US and EU, whichever is later. Data will be indefinitely available for requesting.

IPD 共享访问标准

A research proposal should be approved by an independent review panel and researchers should sign a data sharing agreement.

IPD 共享支持信息类型

  • 研究方案
  • 树液
  • 企业社会责任

药物和器械信息、研究文件

研究美国 FDA 监管的药品

是的

研究美国 FDA 监管的设备产品

不

此信息直接从 clinicaltrials.gov 网站检索，没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求，请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改，我们的网站上也会自动更新.

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