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Clinical Trial ● Currently Recruiting Phase III NCT05774951

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

A Study of Camizestrant in ER+/HER2- Early Breast Cancer After at Least 2 Years of Standard Adjuvant Endocrine Therapy — Recruiting • Phase III • Oncology • NCT05774951.

📅 08 May 2026 ⏱ 2 min read
Currently Recruiting
This trial is actively seeking participants in the UK. Discuss eligibility with your patient before referring.
Status
Currently Recruiting
Phase
Phase III
NCT ID
NCT05774951
Sponsor
AstraZeneca
Start
2023-03-31
ClinicaliQ Trial Snapshot
  • A Study of Camizestrant in ER+/HER2- Early Breast Cancer After at Least 2 Years of Standard Adjuvant Endocrine Therapy — Recruiting • Phase III • Oncology • NCT05774951.
  • Treatment being tested: Camizestrant (a selective estrogen receptor degrader) versus standard endocrine therapy in ER+/HER2- early breast cancer patients who have completed at least 2 years of adjuvant endocrine therapy.
  • Patient eligibility overview: Women with ER+/HER2- early breast cancer at intermediate or high risk of recurrence who have finished definitive locoregional therapy and completed minimum 2 years of standard adjuvant endocrine treatment.
Use This Page For
  • Quick orientation before opening the registry record.
  • Checking recruitment status, phase and sponsor at a glance.
  • Connecting this trial to nearby guidelines, Drug Science and education.
What This Trial Is Studying

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 for disease recurrence who completed definitive locoregional therapy (with or without chemotherapy) and standard adjuvant endocrine therapy (ET) for at least 2 years and up to 5 years. The planned duration of treatment in either arm of the study is 60 months.

Eligibility Snapshot
  • : * 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

Use the source registry for the full inclusion and exclusion criteria before discussing referral or enrolment.

Full Trial Details
View this trial on the source registry
Eligibility criteria, protocol, and results when available
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