Status:

RECRUITING

A Study of Camizestrant in ER+/HER2- Early Breast Cancer After at Least 2 Years of Standard Adjuvant Endocrine Therapy

Lead Sponsor:

AstraZeneca

Conditions:

Breast Cancer, Early Breast Cancer

Eligibility:

All Genders

18-130 years

Phase:

PHASE3

Brief Summary

This is a Phase III open-label study to assess if camizestrant improves outcomes compared to standard endocrine therapy in patients with ER+/HER2 - early breast cancer with intermediate or high risk f...

Detailed Description

This is a Phase III open-label study to assess if camizestrant improves outcomes compared to standard endocrine therapy in patients with ER+/HER2 - early breast cancer who completed definitive locoreg...

Eligibility Criteria

Inclusion

  • Women and Men, ≥18 years at the time of screening (or per national guidelines)
  • Histologically confirmed ER+/HER2- early-stage resected invasive breast cancer with high or intermediate risk of recurrence, based on clinical-pathological risk features, as defined in the protocol.
  • Completed adequate (definitive) locoregional therapy (surgery with or without radiotherapy) for the primary breast tumour(s), with or without (neo)adjuvant chemotherapy
  • Completed at least 2 years but no more than 5 years (+3 months) of adjuvant ET (+/- CDK4/6 inhibitor)
  • Eastern Cooperative Oncology Group (ECOG) performance status of ≤ 1
  • Adequate organ and marrow function

Exclusion

  • Inoperable locally advanced or metastatic breast cancer
  • Pathological complete response following treatment with neoadjuvant therapy
  • History of any other cancer (except non-melanoma skin cancer or carcinoma in situ of the cervix or considered at very low risk of recurrence per investigator judgement) unless in complete remission with no therapy for a minimum of 5 years from the date of randomisation
  • Any evidence of severe or uncontrolled systemic diseases which, in the investigator's opinion precludes participation in the study or compliance
  • Known LVEF \<50% with heart failure NYHA Grade ≥2.
  • Mean resting QTcF interval \>480 ms at screening
  • Concurrent exogenous sex hormone therapy
  • Any concurrent anti-cancer treatment not specified in the protocol with the exception of bisphosphonates (e.g. zoledronic acid) or RANKL inhibitors (eg, denosumab)
  • Previous treatment with camizestrant, investigational SERDs/investigational ER targeting agents, or fulvestrant
  • Currently pregnant (confirmed with positive serum pregnancy test) or breastfeeding
  • Patients with known hypersensitivity to active or inactive excipients of camizestrant or drugs with a similar chemical structure or class to camizestrant. In pre-/peri-menopausal female and male patients, known hypersensitivity or intolerance to LHRH agonists, that would preclude the patient from receiving any LHRH agonist

Key Trial Info

Start Date :

March 31 2023

Trial Type :

INTERVENTIONAL

Allocation :

ESTIMATED

End Date :

May 29 2036

Estimated Enrollment :

4300 Patients enrolled

Trial Details

Trial ID

NCT05774951

Start Date

March 31 2023

End Date

May 29 2036

Last Update

February 25 2026

Active Locations (727)

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Page 1 of 182 (727 locations)

1

Research Site

Birmingham, Alabama, United States, 35205

2

Research Site

Dothan, Alabama, United States, 36303

3

Research Site

Anchorage, Alaska, United States, 99508

4

Research Site

Chandler, Arizona, United States, 85224