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Hospital Nossa Senhora da Conceicao | Conceicao Hospital - Infectious Diseases Department

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A Study of the Efficacy and Safety of Atezolizumab Plus Chemotherapy for Patients With Early Relapsing Recurrent Triple-Negative Breast Cancer (IMpassion132)

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Roche

Status and phase

Active, not recruiting
Phase 3

Conditions

Triple Negative Breast Neoplasms

Treatments

Drug: Placebo
Drug: Capecitabine
Drug: Atezolizumab
Drug: Gemcitabine
Drug: Carboplatin

Study type

Interventional

Funder types

Industry

Identifiers

NCT03371017
2016-005119-42 (EudraCT Number)
MO39193

Details and patient eligibility

About

This study will evaluate the efficacy and safety of atezolizumab plus chemotherapy compared with placebo plus chemotherapy in patients with inoperable recurrent triple-negative breast cancer (TNBC).

Enrollment

572 estimated patients

Sex

All

Ages

18+ years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • Histologically confirmed triple negative breast cancer (TNBC) that is either locally recurrent, inoperable and cannot be treated with curative intent or is metastatic
  • Documented disease progression occurring within 12 months from the last treatment with curative intent
  • Prior treatment (of early breast cancer) with an anthracycline and taxane
  • Have not received prior chemotherapy or targeted systemic therapy for their locally advanced inoperable or metastatic recurrence. Prior radiation therapy for recurrent disease is permitted
  • Measurable or non-measurable disease, as defined by RECIST 1.1
  • Availability of a representative formalin-fixed, paraffin-embedded (FFPE) tumour block (preferred) or at least 17 unstained slides obtained from relapsed metastatic or locally advanced diseases may be submitted, if clinically feasible, with an associated pathology report, if available. If a fresh tumour sample is not clinically feasible, either the diagnosis sample, the primary surgical resection sample, or the most recent FFPE tumour biopsy sample should be used.
  • Eastern Cooperative Oncology Group performance status 0-1
  • Life expectancy ≥ 12 weeks
  • Adequate haematologic and end-organ function
  • Negative human immunodeficiency virus (HIV) test ---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) DNA test at screening
  • The HBV DNA test will be performed only for patients who have a negative HBsAg and a positive HBcAb test.
  • Negative hepatitis C virus (HCV) antibody test at screening, or positive HCV antibody test followed by a negative HCV RNA test at screening.
  • Women of childbearing potential must agree to remain abstinent (refrain from heterosexual intercourse) or use a contraceptive method with 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 capecitabine, whichever is later. In addition, women must refrain from donating eggs during the same time period.
  • Men must agree to remain abstinent (refrain from heterosexual intercourse) or use contraceptive measures, and agree to refrain from donating sperm

Inclusion criteria for patients enrolled after the recruitment of all-comers is complete:

-PD-L1-positive tumour status (assessed centrally prior to randomisation), defined as PD-L1 expression on tumour-infiltrating immune cells (IC) of 1% or greater.

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 randomisation
  • Symptomatic, untreated, or actively progressing central nervous system (CNS) metastases.
  • Symptomatic or rapid visceral progression
  • No prior treatment with an anthracycline and taxane
  • History of leptomeningeal disease
  • Uncontrolled pleural effusion, pericardial effusion, or ascites requiring recurrent drainage procedures (once monthly or more frequently) (patients with indwelling catheters such as PleurX® are allowed)
  • Uncontrolled tumour-related pain
  • Uncontrolled or symptomatic hypercalcemia
  • Malignancies other than TNBC within 5 years prior to randomisation)
  • Significant cardiovascular disease, within 3 months prior to randomisation, unstable arrhythmias, or unstable angina
  • Presence of an abnormal ECG
  • Severe infection requiring oral or IV antibiotics within 4 weeks prior to randomisation, including but not limited to hospitalization for complications of infection, bacteraemia, or severe pneumonia.
  • Current treatment with anti-viral therapy for HBV.
  • Major surgical procedure within 4 weeks prior to randomisation or anticipation of the need for a major surgical procedure during the course of the study other than for diagnosis
  • Treatment with investigational therapy within 28 days prior to randomisation
  • Pregnant or lactating, or intending to become pregnant during or within 5 months after the last dose of atezolizumab, or within 6 months after the last dose of capecitabine, whichever is later.

Exclusion Criteria Related to Atezolizumab:

  • History of severe allergic, anaphylactic, or other hypersensitivity reactions to chimeric or humanised antibodies or fusion proteins
  • Known hypersensitivity or allergy to biopharmaceuticals produced in Chinese hamster ovary cells or to any component of the atezolizumab formulation
  • History of autoimmune disease
  • Prior allogeneic 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 computerised tomography (CT) scan History of radiation pneumonitis in the radiation field (fibrosis) is permitted.
  • Active tuberculosis
  • Receipt of a live, attenuated vaccine within 4 weeks prior to randomisation or anticipation that a live, attenuated vaccine will be required during atezolizumab/placebo treatment or within 5 months after the last dose of atezolizumab/placebo
  • Prior treatment with CD137 agonists, anti-PD-1, or anti-PD-L1 therapeutic antibody or pathway targeting agents
  • Treatment with systemic immunostimulatory agents (including but not limited to interferons or interleukin [IL]-2) within 4 weeks or five half-lives of the drug (whichever is longer) prior to randomisation
  • Treatment with systemic corticosteroids or other systemic immunosuppressive medications within 2 weeks prior to start of study treatment, or anticipated requirement for systemic immunosuppressive medications during the trial

Exclusion Criteria Related to Capecitabine:

  • Inability to swallow pills
  • Malabsorption syndrome, disease significantly affecting gastrointestinal function, resection of the stomach or small bowel, or ulcerative colitis
  • Known dihydropyrimidine dehydrogenase (DPD) deficiency or history of severe and unexpected reactions to fluoropyrimidine therapy in patients selected to receive capecitabine

Exclusion Criteria Related to Carboplatin/Gemcitabine:

-Hypersensitivity to platinum containing compounds or any component of carboplatin or gemcitabine drug formulations in patients selected to receive carboplatin and Gemcitabine

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

Quadruple Blind

572 participants in 2 patient groups, including a placebo group

Atezolizumab
Experimental group
Description:
Participants will receive Atezolizumab on day 1 of each 3-week treatment cycle
Treatment:
Drug: Carboplatin
Drug: Gemcitabine
Drug: Atezolizumab
Drug: Capecitabine
Placebo
Placebo Comparator group
Description:
Participants will receive Placebo on day 1 of each 3-week treatment cycle
Treatment:
Drug: Carboplatin
Drug: Gemcitabine
Drug: Capecitabine
Drug: Placebo

Trial contacts and locations

137

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Central trial contact

Reference Study ID Number: MO39193 https://forpatients.roche.com/

Data sourced from clinicaltrials.gov

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