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A Study to Compare Atezolizumab (Anti-PD-L1 Antibody) in Combination with Adjuvant Anthracycline/Taxane based Chemotherapy Versus Chemotherapy Alone in Patients with Operable Triple-Negative Breast Cancer

A PHASE III, MULTICENTER, RANDOMIZED, OPEN-LABEL STUDY COMPARING ATEZOLIZUMAB (ANTI-PD-L1 ANTIBODY) IN COMBINATION WITH ADJUVANT ANTHRACYCLINE/TAXANE-BASED CHEMOTHERAPY VERSUS CHEMOTHERAPY ALONE IN PATIENTS WITH OPERABLE TRIPLE-NEGATIVE BREAST CANCER

Status
Not yet recruiting
Phases
Phase 3
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2016-003695-47-IE
Enrollment
1986
Registered
2018-01-30
Start date
2018-07-24
Completion date
Unknown
Last updated
2022-03-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Triple-negative breast cancer (TNBC) MedDRA version: 20.0 Level: PT Classification code 10006187 Term: Breast cancer System Organ Class: 10029104 - Neoplasms benign, malignant and unspecified (incl cysts and polyps)

Interventions

Product Name: Atezolizumab Product Code: RO5541267/F03 Pharmaceutical Form: Concentrate for solution for infusion INN or Proposed INN: ATEZOLIZUMAB CAS Number: 1380723-44-3 Current Sponsor code: RO554

Sponsors

F. Hoffman-La Roche Ltd.
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: - Age >= 18 years - Eastern Cooperative Oncology Group Performance Status of 0 or 1 - Non-metastatic operable Stage II-III breast cancer; patients with node-negative disease must have a pathologic tumor size > 2cm - Histologically documented TNBC that is centrally confirmed - Confirmed tumor Programmed death-ligand 1 (PD-L1) evaluation (centrally conducted) - Adequately excised: Patients must have undergone either breast conserving surgery or mastectomy/nipple- or skin-sparing mastectomy - Pathological tumor-node-metastasis staging: Patient must have had sentinel lymph node biopsy and/or axillary lymph node dissection for evaluation of pathologic nodal status - Patients with synchronous bilateral invasive disease are eligible only if all bilateral invasive lesions are histologically confirmed as triple negative by central lab and have completed adequate pathological tumor-node metastasis staging bilaterally as described - No more than 8 weeks (56 days) may elapse between definitive breast surgery and randomization - Baseline left ventricular ejection fraction >= 53% measured by echocardiogram or multiple-gated acquisition scans - Adequate hematologic and end-organ function - Representative formalin-fixed, paraffin embedded tumor specimen from surgical resection in paraffin blocks or at least 25 unstained slides, with an associated pathology report documenting locally assessed ER, PgR, and HER2 negativity - For women of childbearing potential: agreement to remain abstinent or use contraceptive measures that result in a failure rate of =65 years) yes F.1.3.1 Number of subjects for this age range 412

Exclusion criteria

Exclusion criteria: - Prior history of invasive breast cancer - Any T4 tumor - For the currently diagnosed breast cancer, any previous systemic anti-cancer treatment, planned in the context of this study - Previous therapy with anthracyclines or taxanes for any malignancy - History of ductal carcinoma in situ and/or lobular carcinoma in situ that was treated with any form of systemic, hormonal therapy, or radiotherapy (RT) to the ipsilateral breast where invasive cancer subsequently developed - Contraindication to RT when adjuvant RT is clinically indicated - Cardiopulmonary and/or cerebrovascular dysfunction - Prior malignancies within 5 years prior to randomization - History of severe allergic, anaphylactic, or other hypersensitivity reactions to chimeric or humanized antibodies or fusion proteins - Known hypersensitivity to biopharmaceuticals produced in Chinese hamster ovary cells - Known allergy or hypersensitivity to any component of the atezolizumab, paclitaxel, cyclophosphamide, or doxorubicin/epirubicin formulations and filgrastim or pegfilgrastim or granulocyte-macrophage colony-stimulating factor formulations - Active or history of autoimmune disease or immune deficiency - History of idiopathic pulmonary fibrosis, organizing pneumonia, drug induced pneumonitis, idiopathic pneumonitis, or evidence of active pneumonitis on screening chest computed tomography scan - Positive HIV test at screening - Active hepatitis B, C virus infection and tuberculosis - Urinary outflow obstruction - Severe infections within 4 weeks prior to initiation of study treatment - Treatment with therapeutic oral or IV antibiotics within 2 weeks prior to initiation of study treatment - Major surgical procedure other than for diagnosis within 4 weeks prior to initiation of study treatment or anticipation of need for a major surgical procedure during the course of the study - Prior allogeneic stem cell or solid organ transplant - Administration of a live attenuated vaccine within 4 weeks prior to initiation of study treatment or anticipation of need for such a vaccine during the study or within 5 months after the last dose of atezolizumab - Any other disease, metabolic dysfunction, physical examination finding, or clinical laboratory finding that contraindicates the use of an investigational drug, may affect the interpretation of the results, or may render the patient at high risk from treatment complications - Prior treatment with CD137 agonists or immune checkpoint-blockade therapies - Treatment with systemic immunosuppressive medications within 2 weeks prior to initiation of study treatment or anticipation of need for systemic immunosuppressive medication during the study - Pregnant or lactating, or intending to become pregnant during the study - Known clinically significant liver disease, including alcoholic hepatitis, cirrhosis, and inherited liver disease - Under any legal protection (tutorship/curatorship)

Design outcomes

Primary

MeasureTime frame
Main Objective: • To evaluate the efficacy of adjuvant atezolizumab + paclitaxel, dosedense doxorubicin/epirubicin, and cyclophosphamide (T-AC/EC) compared with T-AC/EC alone in patients with TNBC based on invasive disease-free survival (iDFS);Secondary Objective: • To evaluate the efficacy of adjuvant atezolizumab + T-AC/EC compared with T-AC/EC alone based on iDFS in the PD-L1 selected and in the nodepositive disease subpopulations, overall survival (OS), recurrence-free interval (RFI), Distant RFI and disease-free survival (DFS) • To evaluate patient-reported outcomes (PROs) of function and healthrelated quality of life (HRQoL) associated with atezolizumab + T-AC/EC compared with T-AC/EC alone, as measured by the validated patient reported outcome tools • To evaluate the safety and tolerability of atezolizumab + T-AC/EC compared with T-AC/EC alone • To characterize the serum pharmacokinetics of atezolizumab when administered in combination with T-AC/ EC chemotherapy • To evaluate the immune response to atezolizumab;Primary end point(s): 1. iDFS;Timepoint(s) of evaluation of this end point: Up to 7 years

Secondary

MeasureTime frame
Secondary end point(s): 1.iDFS in the subpopulation with PD-L1-selected tumor status (IC1/2/3) and node-positive disease 2.OS 3.iDFS including second primary non-breast invasive cancer as an event 4.RFI 5.Distant RFI 6.DFS 7.Occurrence and severity of adverse events as defined by National Cancer Institute Common Terminology Criteria for Adverse Events version 5.0 8.Mean and mean changes from baseline score in function (role, physical) and global health status (GHS)/HRQoL by assessment timepoint, and between treatment arms as assessed by the functional and GHS/HRQoL scales of the EORTC QLQ-C30 9.Serum concentration of atezolizumab at specified timepoints 10.Incidence of anti-drug antibodies (ADAs) during the study relative to the prevalence of ADAs at baseline;Timepoint(s) of evaluation of this end point: 1-8. Up to 7 years 9-10. Day 1 of Cycle 1-4, 6, 10, and 14 and at treatment discontinuation visit (<= 30 days after last dose)

Countries

Argentina, Australia, Austria, Belgium, Brazil, China, Czechia, Czech Republic, Denmark, France, Germany, Hong Kong, Hungary, Ireland, Israel, Italy, Japan, Korea, Republic of, Mexico, Peru, Poland, Romania, Russian Federation, Singapore, Spain, Switzerland, Taiwan, Thailand, Turkey, Ukraine, United Kingdom, United States

Contacts

Public ContactTrial Information Support Line-TISL

F.Hoffmann-La Roche Ltd.

global.rochegenentechtrials@roche.com+4161 688 1111

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026