OncoMatch

OncoMatch/Clinical Trials/NCT05952557

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

Is NCT05952557 recruiting? Yes, currently enrolling (Jun 2026). This Phase 3 trial studies multiple treatments for breast cancer, early breast cancer.

Phase 3RecruitingAstraZenecaNCT05952557Data as of Jun 2026Location: International · 44 countries

Treatment: Camizestrant · Tamoxifen · Anastrozole · Letrozole · Exemestane · AbemaciclibThis 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.

Check if I qualify

Extracted eligibility criteria

Treatments studied

Targeted therapy

Abemaciclib

Endocrine / hormonal

CamizestrantTamoxifenAnastrozoleLetrozoleExemestane

Cancer type

Breast Carcinoma

Biomarker criteria

Required: HER2 (ERBB2) negative

Required: ESR1 positive

Disease stage

Required: Stage EARLY-STAGE

Excluded: Stage IV, INOPERABLE LOCALLY ADVANCED

early-stage resected invasive breast cancer with absence of any evidence of metastatic disease; Inoperable locally advanced or metastatic breast cancer [excluded]

Performance status

ECOG 0–1(Restricted strenuous activity)

Demographics

Ages ≤ 130

Prior therapy

Must have received: surgery — definitive/curative

Completed adequate (definitive) locoregional therapy (surgery with or without radiotherapy) for the primary breast tumour(s)

Cannot have received: camizestrant (camizestrant)

Previous treatment with camizestrant

Cannot have received: investigational SERD

investigational SERDs/investigational ER targeting agents

Cannot have received: estrogen receptor antagonist (fulvestrant)

fulvestrant

Lab requirements

Blood counts

Adequate organ and bone marrow function

Kidney function

Adequate organ and bone marrow function

Liver function

Adequate organ and bone marrow function

Cardiac function

Known LVEF <50% with heart failure NYHA Grade ≥2 [excluded]; Mean resting QTcF interval > 480 ms at screening [excluded]

Adequate organ and bone marrow function; Known LVEF <50% with heart failure NYHA Grade ≥2 [excluded]; Mean resting QTcF interval > 480 ms at screening [excluded]

Structured fields extracted by AI. May contain errors — verify against the official protocol.

US trial sites

  • Research Site · Dothan, Alabama
  • Research Site · Phoenix, Arizona
  • Research Site · Tucson, Arizona
  • Research Site · Fayetteville, Arkansas
  • Research Site · Duarte, California

Showing up to 5 US sites.

See all sites on ClinicalTrials.gov →

Frequently asked questions

Is NCT05952557 currently recruiting?

Yes, this trial is currently recruiting patients.

Are there prior therapy exclusions?

Yes. Prior camizestrant, investigational SERD, estrogen receptor antagonist disqualifies patients from enrollment.

Does this trial require ERBB2?

Yes, ERBB2 negative is a required biomarker for enrollment.

Does this trial require ESR1?

Yes, ESR1 positive is a required biomarker for enrollment.

What disease stage is eligible?

Stage EARLY-STAGE is required.

Is there an age limit?

Yes. Patients must be 130 years or younger.

Could you qualify for this trial?

Enter your biomarker results to see how this trial's eligibility criteria match your specific cancer profile.

Check if I qualify