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A Study of a Medicine Called Atirmociclib in Combination With Giredestrant in Adult Participants With ER-positive, HER2-negative Early-stage Breast Cancer

2026年11月5日 更新者：Pfizer

AN INTERVENTIONAL, DOUBLE-BLIND, PLACEBO CONTROLLED, RANDOMIZED, MULTICENTER PHASE 3 STUDY OF ATIRMOCICLIB (PF-07220060) PLUS GIREDESTRANT COMPARED TO GIREDESTRANT MONOTHERAPY AS ADJUVANT TREATMENT IN ADULT PARTICIPANTS WITH ESTROGEN RECEPTOR (ER)-POSITIVE, HER2-NEGATIVE EARLY-STAGE BREAST CANCER WITH MEDIUM OR HIGH RISK OF RECURRENCE (FOURLIGHT-4)

This Phase 3 study will evaluate whether atirmociclib plus giredestrant improves invasive breast cancer-free survival compared with giredestrant alone in adults with ER-positive, HER2-negative early breast cancer at medium or high risk of recurrence.

This is a Phase 3, double blind, placebo controlled study of atirmociclib plus giredestrant vs. giredestrant monotherapy as adjuvant treatment in adult patients with ER+, HER2- early breast cancer. The study plans to enroll 3800 participants randomized 1:1 into one of two treatment arms (Arm A - investigational: atirmociclib plus giredestrant taken continuously in a 28-day cycle) or (Arm B - comparator: placebo plus giredestrant taken continuously in a 28-day cycle). Participants may be treated with atirmociclib/placebo up to 3 years and giredestrant up to 5 years followed by long term follow up for survival and evaluation of recurrence of disease.

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)

3800

阶段

  • 第三阶段

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

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

KEY INCLUSION CRITERIA

  1. Histologically confirmed unilateral primary adenocarcinoma of the breast

    • ER-positive by local assessment
    • documented HER2-negative

  2. Node positive or node negative as defined by:

    • Pathological node positive (microscopic and/or macroscopic tumor involvement >/=pN1)

    • pN0 and pT >1cm with at least one of the following:

      1. pT4N0 or
      2. histologically Grade 3 disease or
      3. high-risk classification based on genomic assay

  3. Randomization within 16 months of definitive breast surgery

  4. If indicated, completed adjuvant and/or neoadjuvant chemotherapy, adjuvant radiation therapy >/= 21 days prior to randomization

KEY EXCLUSION CRITERIA

  1. Distant metastases of breast cancer beyond regional lymph nodes

  2. Multicentric or multifocal breast cancer if any tumor foci meet pathologic criteria for ER(-) or HER2(+)

  3. Clinically significant cardiovascular disease or cardiac repolarization abnormality for 6 months prior to randomization; resting heart rate <50bpm

  4. Has received the following prior systemic anti-cancer therapy for breast cancer

    • prior atirmociclib, giredestrant, other investigational anti-cancer agent
    • prior treatment with olaparib

    NOTES:

    • short course of prior neo/adjuvant CDK4/6 inhibitor treatment (</=8 weeks) is permitted; 10-day washout period required
    • short course of prior neoadjuvant and/or adjuvant ET (</=18 weeks) is permitted; 35-day washout period for tamoxifen is required

  5. Prior treatment with investigational product within 30 days or 5 half-lives

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：四人间

武器和干预

参与者组/臂
干预/治疗
实验性的：Arm A : Atirmociclib + giredestrant

Atirmociclib tablet given orally twice daily, plus giredestrant capsule given orally once per day
药品：Atirmociclib

Atirmociclib tablet given orally twice daily, plus giredestrant capsule given orally once per day

其他名称：
  • PF-07220060
药品：giredestrant

giredestrant capsule given once a day
有源比较器：Arm B: Placebo for atirmociclib + giredestrant

Placebo atirmociclib tablets given orally twice a day plus giredestrant capsule given once a day
药品：giredestrant

giredestrant capsule given once a day

其他：Atirmociclib placebo

Atirmociclib placebo tablet given twice a day

研究衡量的是什么？

主要结果指标

结果测量
措施说明
大体时间
Invasive Breast Cancer Free Survival (iBCFS)
大体时间：From randomization to first iBCFS event, up to 16 years

iBCFS is defined as the time from the date of randomization to the date of first documented occurrence of invasive ipsilateral breast tumor recurrence, local-regional invasive breast cancer recurrence, invasive contralateral breast cancer, distant recurrence, or death from any cause, as determined by investigator assessment per STEEP v2.0 criteria
From randomization to first iBCFS event, up to 16 years

次要结果测量

结果测量
措施说明
大体时间
Invasive Disease Free Survival (iDFS)
大体时间：From randomization to first iDCFS event, up to 16 years

iDFS defined as the time from the date of randomization to the date of first documented occurrence of invasive ipsilateral breast tumor recurrence, local-regional invasive breast cancer recurrence, invasive contralateral breast cancer, distant recurrence, second primary invasive non-breast cancer, or death from any cause, as determined by investigator assessment per STEEP v2.0 criteria
From randomization to first iDCFS event, up to 16 years
Disease Recurrence Free Survival (DRFS)
大体时间：From randomization to first DRFS event, up to 16 years

DRFS as per investigator assessment, defined as the time from the date of randomization to the date of distant recurrence as determined by investigator assessment or death from any cause, whichever occurs first
From randomization to first DRFS event, up to 16 years
Overall survival (OS)
大体时间：From randomization to death from any cause, up to 16 years

OS is defined as the time from the date of randomization to the date of death due to any cause
From randomization to death from any cause, up to 16 years
Number and percentage of Participants with Treatment-Emergent Adverse Events (AEs)
大体时间：From start of treatment until 28 days after last dose of study treatment, up to 5 years

Type, incidence, severity of AE graded by NCI CTCAE v 5.0, seriousness and relationship to study intervention
From start of treatment until 28 days after last dose of study treatment, up to 5 years
Percentage of participants With Clinical Laboratory Abnormalities
大体时间：From start of treatment until 28 days after last dose of study treatment, up to 5 years
From start of treatment until 28 days after last dose of study treatment, up to 5 years
Percentage of Participants With ECG abnormalities
大体时间：From start of treatment until 28 days after last dose of study treatment, up to 5 years
From start of treatment until 28 days after last dose of study treatment, up to 5 years
Patient Reported Outcomes (PRO)
大体时间：From start of treatment until 28 days after last dose of study treatment, up to 5 years

Change from baseline in participant reported total score, well-being subscales and symptoms scores and TOI per FACT-ES
From start of treatment until 28 days after last dose of study treatment, up to 5 years
Pre-dose Plasma Concentration (Ctrough) of atirmociclib
大体时间：Cycle 1 Day 15, Cycle 2 Day 1, and Cycle 3 Day 1; Cycle is defined as 28 days
Cycle 1 Day 15, Cycle 2 Day 1, and Cycle 3 Day 1; Cycle is defined as 28 days

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

Pfizer

调查人员

  • 研究主任：Pfizer CT.gov Call Center、Pfizer

出版物和有用的链接

负责输入研究信息的人员自愿提供这些出版物。这些可能与研究有关。

有用的网址

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)

2032年4月13日

研究完成 (估计的)

2042年8月20日

研究注册日期

首次提交

2026年10月16日

首先提交符合 QC 标准的

2026年10月16日

首次发布 (实际的)

2026年10月22日

研究记录更新

最后更新发布 (实际的)

2026年11月10日

上次提交的符合 QC 标准的更新

2026年11月5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

  • C4391026

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

Pfizer will provide access to individual de-identified participant data and related study documents (e.g. protocol, Statistical Analysis Plan (SAP), Clinical Study Report (CSR)) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions. Further details on Pfizer's data sharing criteria and process for requesting access can be found at: https://www.pfizer.com/science/clinical_trials/trial_data_and_results/data_requests.

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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