New drug combo tested for tough breast cancer: safety results in
NCT ID NCT04148911
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested the safety of combining the immunotherapy drug atezolizumab with the chemotherapy nab-paclitaxel in 184 people with advanced triple-negative breast cancer that had spread. Participants had not received prior chemotherapy for their advanced disease. The main goal was to track serious side effects and immune-related reactions.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 3
Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.
- Participants
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184 people
The number who actually took part.
- Started
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Dec 2019
- Finished
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Dec 2024
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
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, or any active infection, that in the opinion of the investigator, could impact patient safety. * 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 final 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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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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AULSS3 - Presidio di Mirano
Mirano (VE), Veneto, 30035, Italy
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Ars Medical Sp. z o. o.
Pi?a, 64-920, Poland
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Azienda Ospedaliera San Giuseppe Moscati
Avellino, Campania, 83100, Italy
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Azienda Ospedaliero - Universitaria Pisana U.O. Oncologia Medica 2 Universitaria ? Polo Oncologico
Pisa, Tuscany, 56126, Italy
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Azienda Universitaria Magna Grecia
Catanzaro, Calabria, 88100, Italy
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Azienda ospedaliero-universitaria careggi, Sezione di radioterapia del dipartimento di fisiopatolo
Florence, Tuscany, 50134, Italy
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B-A-Z Vármegyei Központi Kórház és Egyetemi Oktatókórház
Miskolc, 3526, Hungary
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Bács-Kiskun Vármegyei Oktatókórház
Kecskemét, 6000, Hungary
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CEMIC
Buenos Aires, C1431FWN, Argentina
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Centre Leon Berard
Lyon, 69373, France
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Centrul de Oncologie Sfantul Nectarie
Craiova, 200542, Romania
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Centrul de Radioterapie AMETHYST
Floreşti, 407280, Romania
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Clinica Oncologica-Ospedali Riuniti Ancona
Torrette, Tuscany, 60020, Italy
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Clinique Onco Des Dentellieres
Valenciennes, 59300, France
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Corporacio Sanitaria Parc Tauli
Sabadell, Barcelona, 08208, Spain
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Debreceni Egyetem Klinikai Kozpont
Debrecen, 4032, Hungary
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Departement Medecine
Villejuif, 94805, France
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Fakultni Poliklinika Vseobecne Fakultni Niemocnice
Prague, 128 08, Czechia
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Fondazione IRCCS Policlinico San Matteo, Oncologia
Pavia, Lombardy, 27100, Italy
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Fondazione del Piemonte per l?Oncologia (IRCCS)
Candiolo, Trentino-Alto Adige, 10060, Italy
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Hospital Alvaro Cunqueiro
Vigo, Pontevedra, 36312, Spain
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Hospital Clinico Universitario Virgen de la Victoria
Málaga, 29010, Spain
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Hospital Clinico Universitario de Salamanca
Salamanca, 37007, Spain
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Hospital Cuf Descobertas
Lisbon, 1998-018, Portugal
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Hospital Garcia de Orta
Almada, 2801-951, Portugal
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Hospital General Universitario J.M Morales Meseguer
Murcia, 30008, Spain
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Hospital General Universitario de Elche
Elche, Alicante, 03203, Spain
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Hospital Lucus Augusti
Lugo, 27003, Spain
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Hospital Nacional Cayetano Heredia
Lima, 31, Peru
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Hospital Univ. Central de Asturias
Oviedo, Principality of Asturias, 33011, Spain
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Hospital Universitari Arnau de Vilanova de Lleida
Lleida, 25198, Spain
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Hospital Universitario 12 de Octubre
Madrid, 28041, Spain
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Hospital Universitario San Cecilio
Granada, 18003, Spain
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Hospital de Basurto
Bilbao, Vizcaya, 48013, Spain
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Hospital de Oncología Siglo XXI
Mexico City, Mexico CITY (federal District), 06720, Mexico
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Hospital de S. Francisco Xavier
Lisbon, 1495-005, Portugal
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Hôpital Franco-Britannique- Fondation Cognacq-Jay
Levallois-Perret, 92300, France
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IPO de Coimbra
Coimbra, 3000-075, Portugal
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IPO de Lisboa
Lisbon, 1099-023, Portugal
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IPO do Porto
Porto, 4200-072, Portugal
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Institut de Cancérologie de Bourgogne
Dijon, 21000, France
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Institut de cancerologie du Gard
Nîmes, 30029, France
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Institute of Oncology Ljubljana
Ljubljana, 1000, Slovenia
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Instituto Nacional de Cancerologia
Distrito Federal, 14080, Mexico
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Instituto Nacional de Enfermedades Neoplasicas
Lima, 15038, Peru
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Instituto de Radiomedicina, IRAM
Santiago, 7630370, Chile
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Irccs Ospedale San Raffaele
Milan, Lombardy, 20132, Italy
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Istituto Europeo Di Oncologia
Milan, Lombardy, 20141, Italy
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Komarom-Eszergom Varmegyei Szent Borbala Korhaz
Tatabánya, 2800, Hungary
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MRUKMED Lekarz Beata Madej-Mruk i Partner Spolka Partnerska Oddzial nr 1 w Rzeszowie
Rzeszów, 35-021, Poland
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Nemocnice AGEL Novy Jicin a.s.
Nový Jičín, 741 01, Czechia
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Nemocnice na Bulovce
Prague, 180 81, Czechia
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Nuovo Ospedale di Prato S. Stefano - Azienda USL Toscana Centro
Prato, Tuscany, 59100, Italy
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Organizacion Medica de Investigacion
San Nicolás, C1015ABO, Argentina
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Ospedale Cannizzaro, Oncologia
Catania, Sicily, 95126, Italy
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Ospedale Civile
Sassari, Sardinia, 07100, Italy
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Ospedale San Gerardo
Monza, Lombardy, 20900, Italy
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Ospedale Santa Chiara
Trento, Trentino-Alto Adige, 38100, Italy
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Policlinico Universitario Agostino Gemelli
Rome, Lazio, 00168, Italy
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Pontificia Universidad Catolica de Chile
Santiago, Chile
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Prof. Dr. I. Chiricuta Institute of Oncology
Cluj-Napoca, 400015, Romania
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Sanatorio de la Mujer
Rosario, S2000ORE, Argentina
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Szpital Specjalistyczny Podkarpacki O?rodek Onkologiczny
Brzozów, 36-200, Poland
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Szpital Wojewódzki im. Miko?aja Kopernika
Koszalin, 75-581, Poland
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USL Umbria 1 - Osp. Città di Castello
Città Di Castello (PG), Umbria, 06012, Italy
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Univerzitetni klini?ni center Maribor
Maribor, 2000, Slovenia
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Zala Vármegyei Szent Rafael Kórház
Zalaegerszeg, 8900, Hungary
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Other studies related to the condition(s) this trial covers.
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