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BARBICAN: investigating AKT inhibitors in combination with immunotherapy and chemotherapy in patients with triple negative breast cancer

BARBICAN: A randomised, open-label Phase II study to determine the contribution of ipatasertib to neoadjuvant chemotherapy plus atezolizumab in women with triple-negative breast cancer - BARBICAN

Status
Not yet recruiting
Phases
Phase 2
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2018-000977-62-GB
Enrollment
142
Registered
2018-10-11
Start date
2018-09-28
Completion date
Unknown
Last updated
2018-10-15

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

Conditions

Triple negative breast cancer MedDRA version: 20.0 Level: PT Classification code 10057654 Term: Breast cancer female System Organ Class: 10029104 - Neoplasms benign, malignant and unspecified (incl cysts and polyps)

Interventions

Trade Name: Tecentriq Product Name: Tecentriq Product Code: Atezolizumab Pharmaceutical Form: Solution for infusion INN or Proposed INN: Atezolizumab CAS Number: 1380723-44-3 Other descriptive name: R

Sponsors

Queen Mary University of London
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Willing and able to provide written informed consent prior to study entry 2. Female = 18 years of age 3. Eastern Cooperative Oncology Group (ECOG) Performance Status 0 to 1 4. Histologically confirmed TNBC defined as: •ER negative with =65 years) yes F.1.3.1 Number of subjects for this age range 42

Exclusion criteria

Exclusion criteria: 1 Evidence of metastatic breast cancer. 2 Received any systemic therapy or radiotherapy for current breast cancer disease before study entry 3 Prior exposure to any CD137 agonists or immune checkpoint blockade therapies, including anti?CTLA-4, anti-PD-1 or anti-PD-L1 antibody. 4 Concurrent bilateral invasive breast cancer 5 Inflammatory breast cancer 6 Active malignancy (except for non-melanoma skin cancer, or histologically confirmed complete excision of carcinoma in-situ) within the past 36 months prior to study entry 7 Major surgery within the last 28 days or anticipation of the need for major surgery during study treatment; minor surgeries including insertion of an indwelling catheter, core needle biopsy, or sentinel lymph node biopsy is allowed. 8 Known intolerance to any of the study drugs or any of their excipients 9 Pre-existing peripheral neuropathy grade = 2 10 History of autoimmune disease 11 History of Type I or Type II diabetes mellitus requiring insulin. Patients who are on a stable dose of oral diabetes medication = 2 weeks prior to initiation of study treatment are eligible for enrolment. 12 History of idiopathic pulmonary fibrosis or organizing pneumonia 13 History of HIV infection 14 Known active hepatitis infection or hepatitis C. 15 Active tuberculosis 16 Severe infection within 4 weeks prior to initiation of study treatment, including, but not limited to, hospitalization for complications of infection, bacteremia, or severe pneumonia 17 Treatment with therapeutic oral or IV antibiotics within 2 weeks prior to initiation of study treatment. Patients receiving prophylactic antibiotics (e.g., to prevent a urinary tract infection or chronic obstructive pulmonary disease exacerbation) are eligible for the study. 18 Treatment with a live, attenuated vaccine within 4 weeks prior to initiation of study treatment, or anticipation of need for such a vaccine during atezolizumab treatment or within 5 months after the final dose of atezolizumab 19 Current treatment with anti-viral therapy for HBV 20 Treatment with systemic immunostimulatory agents (including, but not limited to, interferon and interleukin 2 [IL-2]) within 4 weeks or 5 half-lives of the drug (whichever is longer) prior to initiation of study treatment 21 Patients receiving concomitant immunosuppressive agents or chronic systemic corticosteroids (=10 mg prednisolone or an equivalent dose of other anti-inflammatory corticosteroids) use for =28 days at the time of study entry except in cases outlined below: Topical applications (e.g. rash), inhaled sprays (e.g. obstructive airways diseases), eye drops or local injections (e.g. intra-articular) are allowed. Patients on stable low dose of corticosteroids for at least two weeks before randomisation are allowed. 22 Significant cardiovascular disease, such as: • History of myocardial infarction, acute coronary syndromes or coronary angioplasty/stenting/bypass grafting within the past 6 months. • Congestive heart failure (CHF) New York Heart Association (NYHA) Class III or IV or history of CHF NYHA class III or IV, unless an echocardiogram or multigated acquisition scan performed within 3 months before day 1 reveals a left ventricular ejection fraction = 50%; 23. Any other disease, metabolic dysfunction, physical examination finding, or clinical laboratory finding that, in the investigator’s opinion, gives reasonable suspicion of a disease or condition that contraindicates the use of an investigational drug, may

Design outcomes

Primary

MeasureTime frame
Main Objective: BARBICAN has a joint clinical and biological primary objective: Clinical: To assess the lack of all signs of cancer in tissue samples removed during surgery or biopsy after treatment with study treatment and compare this between the two treatment arms. Biological: To determine whether adding ipatasertib to atezolizumab and chemotherapy increases the probability of an immune response over adding atezolizumab to chemotherapy in all treated patients.;Secondary Objective: - Determine the response rates of the breast tumour and axillary nodes based on physical examination and imaging tests after treatment in both arms. -Assess clinical response rate following treatment in both groups -To assess the effect of adding ipatasertib to atezolizumab on immune system markers. - Determine the effect of ipatasertib on disease status and overall survival - Evaluate the effect of these treatment combinations on the patient's quality of life - Assess the safety of each treatment arm.;Primary end point(s): Clinical: pCR defined as no microscopic evidence of residual invasive tumour in all resected specimens of the breast and axilla (ypT0/is ypN0) in all patients and in patients with or without PIK3CA/AKT1/PTEN genetic alterations Biological: 2-fold increase in GzmB+ CD8+ T cell levels from baseline to the end of each treatment phase ;Timepoint(s) of evaluation of this end point: At the time of definitive surgery following completion of study treatment.

Secondary

MeasureTime frame
Secondary end point(s): 1. Objective response rate (ORR) as assessed by RECIST 1.1 principles, defined as percentage of subjects with at least one instance of complete response (CR) or partial response (PR) in the relevant analysis population 2. ORR based on clinical assessment 3. Status and changes of the biomarkers listed below in pre- and end-of treatment tumour and/or blood samples: immune phenotyping, CD8, PD-L1 & MHC-I, immune infiltrates (IFNgamma gene signature expression). 4. IEFS, defined as the time from randomisation to date of first treatment failure that is invasive loco-regional or distant recurrence or new invasive cancer or death from any cause. 5. DDFS, defined as the time from randomisation to the date of first distant recurrence or death attributable to any cause, including breast cancer, non-breast cancer, or unknown cause. Distant recurrence is defined as metastatic disease-breast cancer that has either been biopsy confirmed or clinically diagnosed as recurrent invasive breast cancer. 6. OS, defined as time from randomisation to death of any cause 7. Assessment of mean changes in function and disease/treatment-related symptoms in all scales of the EORTC QLQ-C30 by treatment arm 8. Health utility assessment as measured by the EQ-5D during the study for health economic evaluations 9. Incidence, nature and severity of adverse events with severity determined according to CTCAE v4.03. ;Timepoint(s) of evaluation of this end point: 1. As indicated per local guidelines- after completion of neoadjuvant treatment and prior to surgery (min 3 weeks after last dose, max 1 day prior to surgery), or sooner if clinically indicated. Thereafter, annual mammogram (or MRI of the breast) for 5 years, unless patient had bilateral mastectomy. 2. As per endpoint 1 3. Pre- during and post-treatment samples 4. Same as endpoint 1 5. Same as endpoint 1 6. Death at any timepoint 7 & 8. Baseline, C3, 5, 7, pre-surgery, every 4mos Yr 1&2 and 6monthly Yr 3 to 5 9.

Countries

United Kingdom

Contacts

Public ContactKelly Mousa

Queen Mary University of London

k.mousa@qmul.ac.uk02078828197

Outcome results

None listed

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