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

Phase 3
Completed
Conditions
Triple-Negative Breast Cancer
Interventions
Registration Number
NCT04148911
Lead Sponsor
Hoffmann-La Roche
Brief Summary

Study MO39874 is an open-label, Phase IIIb, single arm, global 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.

Detailed Description

Not available

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
184
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

Study & Design

Study Type
INTERVENTIONAL
Study Design
SINGLE_GROUP
Arm && Interventions
GroupInterventionDescription
Atezolizumab plus Nab-PaclitaxelNab-PaclitaxelParticipants will receive Atezolizumab via intravenous (IV) infusion on Days 1 and 15 of every 28-day cycle in combination with Nab-Paclitaxel on Days 1, 8, and 15 (individually selected by the investigator) until disease progression, or unacceptable toxicity, additionally until loss of clinical benefit as determined by the investigator or participant decision to discontinue treatment.
Atezolizumab plus Nab-PaclitaxelAtezolizumabParticipants will receive Atezolizumab via intravenous (IV) infusion on Days 1 and 15 of every 28-day cycle in combination with Nab-Paclitaxel on Days 1, 8, and 15 (individually selected by the investigator) until disease progression, or unacceptable toxicity, additionally until loss of clinical benefit as determined by the investigator or participant decision to discontinue treatment.
Primary Outcome Measures
NameTimeMethod
Percentage of Participants with treatment-emergent Grade≥3 AEsFrom baseline to up to 4.5 years
Percentage of Participants with treatment-emergent Grade≥2 imAEsFrom baseline to up to 4.5 years
Secondary Outcome Measures
NameTimeMethod
Percentage of Participants with treatment-emergent SAEsFrom baseline to up to 4.5 years
Overall survival (OS) in PD-L1-Positive Tumor Status PopulationFrom baseline to 4.5 years

OS defined as the time from initiation of study treatment to death from any cause.

Progression Free Survival (PFS) in ITT PopulationFrom baseline to 4.5 years

PFS defined as the time from initiation of study treatment to the first occurrence of disease progression or death from any cause, whichever occurs first. PFS will be assessed by the investigator according to RECIST v1.1.

Percentage of Participants with all treatment-emergent AEsFrom baseline to up to 4.5 years
Overall survival (OS) in ITT PopulationFrom baseline to 4.5 years

OS defined as the time from initiation of study treatment to death from any cause.

Progression Free Survival (PFS) in PD-L1-Positive Tumor Status PopulationFrom baseline to 4.5 years

PFS defined as the time from initiation of study treatment to the first occurrence of disease progression or death from any cause, whichever occurs first. PFS will be assessed by the investigator according to RECIST v1.1.

Trial Locations

Locations (67)

CEMIC

🇦🇷

Buenos Aires, Argentina

Pontificia Universidad Catolica de Chile

🇨🇱

Santiago, Chile

Nemocnice AGEL Novy Jicin a.s.

🇨🇿

Novy Jicin, Czechia

Fakultni Poliklinika Vseobecne Fakultni Niemocnice

🇨🇿

Praha 2, Czechia

Nemocnice na Bulovce

🇨🇿

Praha 8, Czechia

Institut de Cancérologie de Bourgogne

🇫🇷

Dijon, France

Hôpital Franco-Britannique- Fondation Cognacq-Jay

🇫🇷

Levallois-Perret, France

Centre Leon Berard

🇫🇷

Lyon, France

Clinique Onco Des Dentellieres

🇫🇷

Valenciennes, France

Departement Medecine

🇫🇷

Villejuif, France

Debreceni Egyetem Klinikai Kozpont

🇭🇺

Debrecen, Hungary

Bács-Kiskun Vármegyei Oktatókórház

🇭🇺

Kecskemét, Hungary

B-A-Z Vármegyei Központi Kórház és Egyetemi Oktatókórház

🇭🇺

Miskolc, Hungary

Komarom-Eszergom Varmegyei Szent Borbala Korhaz

🇭🇺

Tatabánya, Hungary

Zala Vármegyei Szent Rafael Kórház

🇭🇺

Zalaegerszeg, Hungary

Azienda Universitaria Magna Grecia

🇮🇹

Catanzaro, Calabria, Italy

Ospedale Civile

🇮🇹

Sassari, Sardegna, Italy

Ospedale Santa Chiara

🇮🇹

Trento, Trentino-Alto Adige, Italy

USL Umbria 1 - Osp. Città di Castello

🇮🇹

Città Di Castello (PG), Umbria, Italy

AULSS3 - Presidio di Mirano

🇮🇹

Mirano (VE), Veneto, Italy

Instituto Nacional de Cancerologia

🇲🇽

Distrito Federal, Mexico

Hospital Nacional Cayetano Heredia

🇵🇪

Lima, Peru

Szpital Wojewódzki im. Miko?aja Kopernika

🇵🇱

Koszalin, Poland

Hospital Garcia de Orta

🇵🇹

Almada, Portugal

IPO de Coimbra

🇵🇹

Coimbra, Portugal

IPO de Lisboa

🇵🇹

Lisboa, Portugal

Hospital de S. Francisco Xavier

🇵🇹

Lisboa, Portugal

Hospital Cuf Descobertas

🇵🇹

Lisboa, Portugal

IPO do Porto

🇵🇹

Porto, Portugal

Univerzitetni klini?ni center Maribor

🇸🇮

Maribor, Slovenia

Hospital General Universitario de Elche

🇪🇸

Elche, Alicante, Spain

Hospital Univ. Central de Asturias

🇪🇸

Oviedo, Asturias, Spain

Corporacio Sanitaria Parc Tauli

🇪🇸

Sabadell, Barcelona, Spain

Hospital de Basurto

🇪🇸

Bilbao, Vizcaya, Spain

Hospital Universitario San Cecilio

🇪🇸

Granada, Spain

Hospital Universitari Arnau de Vilanova de Lleida

🇪🇸

Lerida, Spain

Hospital Lucus Augusti

🇪🇸

Lugo, Spain

Hospital Universitario 12 de Octubre

🇪🇸

Madrid, Spain

Hospital Clinico Universitario Virgen de la Victoria

🇪🇸

Malaga, Spain

Hospital General Universitario J.M Morales Meseguer

🇪🇸

Murcia, Spain

Hospital Clinico Universitario de Salamanca

🇪🇸

Salamanca, Spain

Sanatorio de la Mujer

🇦🇷

Rosario, Argentina

Organizacion Medica de Investigacion

🇦🇷

San Nicolás, Argentina

Instituto de Radiomedicina, IRAM

🇨🇱

Santiago, Chile

Institut de cancerologie du Gard

🇫🇷

Nimes, France

Azienda Ospedaliera San Giuseppe Moscati

🇮🇹

Avellino, Campania, Italy

Policlinico Universitario Agostino Gemelli

🇮🇹

Roma, Lazio, Italy

Irccs Ospedale San Raffaele

🇮🇹

Milano, Lombardia, Italy

Istituto Europeo Di Oncologia

🇮🇹

Milano, Lombardia, Italy

Ospedale San Gerardo

🇮🇹

Monza, Lombardia, Italy

Fondazione IRCCS Policlinico San Matteo, Oncologia

🇮🇹

Pavia, Lombardia, Italy

Ospedale Cannizzaro, Oncologia

🇮🇹

Catania, Sicilia, Italy

Azienda ospedaliero-universitaria careggi, Sezione di radioterapia del dipartimento di fisiopatolo

🇮🇹

Firenze, Toscana, Italy

Azienda Ospedaliero - Universitaria Pisana U.O. Oncologia Medica 2 Universitaria ? Polo Oncologico

🇮🇹

Pisa, Toscana, Italy

Nuovo Ospedale di Prato S. Stefano - Azienda USL Toscana Centro

🇮🇹

Prato, Toscana, Italy

Clinica Oncologica-Ospedali Riuniti Ancona

🇮🇹

Torrette, Toscana, Italy

Fondazione del Piemonte per l?Oncologia (IRCCS)

🇮🇹

Candiolo, Trentino-Alto Adige, Italy

Hospital de Oncología Siglo XXI

🇲🇽

Ciudad de México, Mexico CITY (federal District), Mexico

Instituto Nacional de Enfermedades Neoplasicas

🇵🇪

Lima, Peru

Szpital Specjalistyczny Podkarpacki O?rodek Onkologiczny

🇵🇱

Brzozów, Poland

Ars Medical Sp. z o. o.

🇵🇱

Pi?a, Poland

MRUKMED Lekarz Beata Madej-Mruk i Partner Spolka Partnerska Oddzial nr 1 w Rzeszowie

🇵🇱

Rzeszow, Poland

Prof. Dr. I. Chiricuta Institute of Oncology

🇷🇴

Cluj Napoca, Romania

Centrul de Oncologie Sfantul Nectarie

🇷🇴

Craiova, Romania

Centrul de Radioterapie AMETHYST

🇷🇴

Floresti, Romania

Institute of Oncology Ljubljana

🇸🇮

Ljubljana, Slovenia

Hospital Alvaro Cunqueiro

🇪🇸

Vigo, Pontevedra, Spain

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