A Study of Atezolizumab Plus Nab-Paclitaxel in the Treatment of Unresectable Locally Advanced or Metastatic PD-L1-Positive Triple-Negative Breast Cancer

  • STATUS
    Recruiting
  • End date
    Oct 29, 2024
  • participants needed
    180
  • sponsor
    Hoffmann-La Roche
Updated on 16 October 2021
paclitaxel
cancer
serum pregnancy test
measurable disease
breast cancer
metastasis
HER2
pd-l1
programmed cell death 1 ligand 1
adenocarcinoma
erbb2
breast adenocarcinoma
triple-negative breast cancer
adenocarcinoma of the breast
atezolizumab
mammogram

Summary

Study MO39874 is an open-label, phase IIIb, single arm, multicenter study conducted in participants with unresectable locally advanced or metastatic PD-L1-positive Triple-Negative Breast Cancer (TNBC) who have not received chemotherapy for their unresectable locally advanced or metastatic disease.

Details
Condition Breast Cancer, Diet and Nutrition, Chronic Diarrhea, Skin Wounds, Chronic Shoulder Pain, Vaginal Atrophy, Adverse Effects, Drugs, Injection Port, Breast Cancer - HER2 Positive, Anal Dysplasia, Primary Immunodeficiency, Pediatric Health, Near-Sighted Corrective Surgery, Peripheral Arterial Occlusive Disease, Triple Negative Breast Cancer, Brain Function, Recurrent Respiratory Papillomatosis, Razor Bumps (Pseudofolliculitis Barbae), Metastatic Triple-Negative Breast Cancer
Treatment Paclitaxel, Nab-paclitaxel, Atezolizumab
Clinical Study IdentifierNCT04148911
SponsorHoffmann-La Roche
Last Modified on16 October 2021

Eligibility

Yes No Not Sure

Inclusion Criteria

Unresectable locally advanced or metastatic, histologically documented TNBC (negative for HER2 and ER and PgR)
At least one specimen positive for PD-L1 status as determined by VENTANA PD-L1 SP142 IHC Assay
No prior chemotherapy, experimental or targeted systemic therapy for unresectable locally advanced or metastatic TNBC
Eastern Cooperative Oncology Group (ECOG) performance status of 0, 1 or 2
Life expectancy 12 weeks
Measurable disease, as defined by RECIST v1.1
Adequate haematologic and end-organ function, defined by the following laboratory results obtained within 14 days prior to the initiation of study treatment
Negative hepatitis B surface antigen (HBsAg) test at screening
Negative total hepatitis B core antibody (HBcAb) test at screening, or positive HBcAb test followed by a negative hepatitis B virus (HBV) deoxyribonucleic acid (DNA) test at screening
Negative hepatitis C virus (HCV) antibody test at screening, or positive HCV antibody test followed by a negative HCV ribonucleic acid (RNA) test at screening
Patients with treated asymptomatic central nervous system (CNS) metastases are eligible, provided that all the following criteria are met: (a) The metastases are limited to the supratentorial region or cerebellum (b) No ongoing requirement for corticosteroids as therapy for CNS disease (c) No stereotactic radiation within 7 days or whole-brain radiation or neurosurgical resection within 2 weeks before the start of study treatment (d) Radiographic demonstration of interim stability between the completion of CNS-directed therapy and the screening imaging study
Patients with a history of autoimmune disease (Appendix 2) are allowed if controlled and on stable treatment (i.e., same treatment, same dose) for the last 12 weeks
For women of childbearing potential: agreement to remain abstinent (refrain from heterosexual intercourse) or use contraceptive methods that result in a failure rate of < 1% per year, during the treatment period and for at least 5 months after the last dose of atezolizumab or 6 months after the last dose of nab-paclitaxel/paclitaxel, whichever is later. In addition, women must refrain from donating eggs during the same time period
For men: agreement to remain abstinent (refrain from heterosexual intercourse) or use contraceptive measures and agreement to refrain from donating sperm
Women who are not postmenopausal ( 12 months of non-therapy-induced amenorrhea) or surgically sterile must have a negative serum pregnancy test result within 14 days prior to initiation of study drug

Exclusion Criteria

Cancer- Specific Exclusion Criteria
Spinal cord compression not definitively treated with surgery and/or radiation, or previously diagnosed and treated spinal cord compression without evidence that disease has been clinically stable for > 2 weeks prior to the first dose of study treatment (Cycle 1, Day 1)
Leptomeningeal carcinomatosis or any symptomatic CNS metastases
Uncontrolled symptomatic pleural effusion, pericardial effusion, or ascites
Uncontrolled tumour-related pain
Uncontrolled hypercalcemia (> 1.5 mmol/L ionized calcium or calcium > 12 mg/dL or corrected serum calcium > ULN) or symptomatic hypercalcemia requiring continued use of bisphosphonate therapy
Malignancies other than breast cancer within 5 years prior to the first dose of study treatment (Cycle 1, Day 1), with the exception of those with a negligible risk of metastasis or death and treated with expected curative outcome
General Medical Exclusion Criteria
Pregnancy or lactation
Evidence of significant uncontrolled concomitant disease that could affect compliance with the protocol or interpretation of results, including significant liver disease
Significant cardiovascular disease such as New York Heart Association (NYHA) cardiac disease (Class II or greater), myocardial infarction within 3 months prior to the first dose of study treatment (Cycle 1, Day 1), unstable arrhythmias, or unstable angina
Severe infection within 4 weeks prior to the first dose of study treatment (Cycle 1, Day 1), including but not limited to hospitalization for complications of infection, bacteraemia, or severe pneumonia
Treatment with oral or IV antibiotics within 2 weeks prior to initiation of study treatment (Cycle 1, Day 1)
Major surgical procedure within 28 days prior to the first dose of study treatment (Cycle 1, Day 1), or anticipation of the need for a major surgical procedure during the course of the study (other than diagnostic procedures)
Treatment with investigational therapy within 4 weeks prior to Cycle 1, Day 1
Known hypersensitivity to nab-paclitaxel or any of the excipients, when nab-paclitaxel is used as a backbone taxane
Known hypersensitivity to paclitaxel or any of the excipients, when paclitaxel is used as a backbone taxane
Positive human immunodeficiency virus (HIV) test at screening, unless the patient meets all of the following conditions: stable on anti-retroviral therapy, CD4 count 200/mL, undetectable viral load
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
Exclusion Criteria Related to Atezolizumab
History of severe allergic, anaphylactic, or other hypersensitivity reactions to chimeric or humanized antibodies or fusion proteins
Known hypersensitivity or allergy to biopharmaceuticals produced in Chinese hamster ovary cells or any component of the atezolizumab formulation
Prior allogenic stem cell or solid organ transplantation
History of idiopathic pulmonary fibrosis (including pneumonitis), drug-induced pneumonitis, organizing pneumonia (i.e., bronchiolitis obliterans, cryptogenic organizing pneumonia), or evidence of active pneumonitis on screening chest CT scan
Current treatment with anti-viral therapy for HBV
Active tuberculosis
Receipt of a live, attenuated vaccine within 4 weeks prior to the first dose of study treatment (Cycle 1, Day 1), or anticipation that such a live, attenuated vaccine will be required during atezolizumab treatment or within 5 months following the last dose of atezolizumab
Prior treatment with CD137 agonists or immune checkpoint blockade therapies (including anti-CTLA4 antibodies), except for anti-PD-1 or anti-PD-L1 antibodies
Treatment with systemic immunostimulatory agents (including but not limited to interferons or IL-2) within 4 weeks or five half-lives of the drug (whichever is longer) prior to the first dose of study treatment (Cycle 1, Day 1)
Only in patients without autoimmune disease: Treatment with systemic corticosteroids or other systemic immunosuppressive medications (including but not limited to prednisone, dexamethasone, cyclophosphamide, azathioprine, methotrexate, thalidomide, and antitumour necrosis factor [TNF] agents) within 2 weeks prior to the first dose of study treatment (Cycle 1, Day 1), or anticipated requirement for systemic immunosuppressive medications during the study
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