An Adjuvant Endocrine-based Therapy Study of Camizestrant (AZD9833) in ER+/HER2- Early Breast Cancer (CAMBRIA-2)

Summary

This is a Phase III open-label study to assess if camizestrant improves outcomes compared to standard adjuvant endocrine therapy for patients with ER+/HER2- early breast cancer with intermediate-high or high risk for disease recurrence who completed definitive locoregional therapy (with or without chemotherapy). The planned duration of treatment in either arm within the study will be 7 years.

Eligibility

Inclusion Criteria:

* 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 absence of any evidence of metastatic disease 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.
* Patients must be randomised within 12 months of definitive breast surgery.
* Patients may have received up to 12 weeks of endocrine therapy prior to randomisation.
* Eastern Cooperative Oncology Group (ECOG) performance status of ≤ 1
* Adequate organ and bone marrow function

Exclusion Criteria:

* 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 a 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 reproductive hormone therapy or non topical hormonal therapy for non-cancer-related conditions
* 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.

Conditions3

Interventions6

Locations148 sites

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