Testing the Drug Atezolizumab or Placebo With Usual Therapy in First-Line HER2-Positive Metastatic Breast Cancer

• ClinicalTrials.gov Identifier: NCT03199885
• Recruitment Status: Active, not recruiting
• First Posted: June 27, 2017
• Last Update Posted: August 8, 2022
• Sponsor: National Cancer Institute (NCI)
• Collaborator: NRG Oncology
• Information provided by (Responsible Party): National Cancer Institute (NCI)

Tracking Information

• First Submitted Date: June 26, 2017
• First Posted Date: June 27, 2017
• Last Update Posted Date: August 8, 2022
• Actual Study Start Date: March 12, 2019
• Estimated Primary Completion Date: January 31, 2023 (Final data collection date for primary outcome measure)

Current Primary Outcome Measures (submitted: July 2, 2021)

Progression free survival [ Time Frame: The time from randomization to the first documented progressive disease assessed up to 7 years ]

Will be determined using the current Response Evaluation Criteria in Solid Tumors 1.1 criteria. Analysis will be based on the intent to treat population. The stratified log-rank test will be used to compare the progression free survival between the two treatment arms with the following stratification factors: prior neoadjuvant or adjuvant therapy with trastuzumab (no; yes), estrogen receptor status (positive; negative), disease sites (any visceral without brain metastasis; non-visceral only without brain metastasis; brain metastasis), and choice of taxane (paclitaxel; docetaxel). The Kaplan-Meier estimates will be calculated by treatment arms. Stratified Cox proportional hazards models to estimate the hazard ratio.

Original Primary Outcome Measures (submitted: June 26, 2017)

Progression free survival [ Time Frame: The time from randomization to the first documented progressive disease assessed up to 5 years ]

Will be determined using the current Response Evaluation Criteria in Solid Tumors 1.1 criteria. Analysis will be based on the intent to treat population. The stratified log-rank test will be used to compare the progression free survival between the two treatment arms with the following stratification factors: prior neoadjuvant or adjuvant therapy with trastuzumab (no prior trastuzumab; prior trastuzumab and no pertuzumab; prior trastuzumab and pertuzumab), estrogen receptor status (positive; negative), and disease sites (any visceral without brain metastasis; non-visceral only without brain me

Current Secondary Outcome Measures (submitted: April 3, 2019)

• Overall survival [ Time Frame: The time from randomization to death from any cause, assessed up to 7 years ]
  Analysis will be based on the intent to treat population. The Kaplan-Meier estimates will be calculated by treatment arms. Stratified Cox proportional hazards models to estimate the hazard ratio.
• Overall objective response [ Time Frame: Up to 7 years ]
  Defined as complete response or partial response. Will be determined using Response Evaluation Criteria in Solid Tumors 1.1 criteria.
• Duration of objective response [ Time Frame: From the date of initial confirmed partial response or complete response until the date of progressive disease or death from any cause assessed up to 7 years ]
  Tumor responses will be based on the current Response Evaluation Criteria in Solid Tumors 1.1 criteria.
• Cumulative incidence of brain metastases [ Time Frame: The time from randomization to documentation of brain metastases, assessed up to 7 years ]
  Analysis will be based on the intent to treat population. The Kaplan-Meier estimates will be calculated by treatment arms. Stratified Cox proportional hazards models to estimate the hazard ratio.
• Frequency of adverse events, including late immune-related toxicities [ Time Frame: Up to 7 years ]
  Will be categorized using the National Cancer Institute Common Terminology Criteria for Adverse Events Version 5.0.

Original Secondary Outcome Measures (submitted: June 26, 2017)

• Cumulative incidence of brain metastases [ Time Frame: The time from randomization to documentation of brain metastases, assessed up to 5 years ]
  Analysis will be based on the intent to treat population. The Kaplan-Meier estimates will be calculated by treatment arms. Stratified Cox proportional hazards models to estimate the hazard ratio.
• Duration of response [ Time Frame: From the date of initial confirmed partial response or complete response until the date of progressive disease or death from any cause assessed up to 5 years ]
  Tumor responses will be based on the current Response Evaluation Criteria in Solid Tumors 1.1 criteria.
• Frequency of adverse events, including late immune-related toxicities [ Time Frame: Up to 5 years ]
  Will be categorized using the National Cancer Institute Common Terminology Criteria for Adverse Events Version 4.0.
• Objective response, defined as complete response or partial response [ Time Frame: Up to 5 years ]
  Will be determined using Response Evaluation Criteria in Solid Tumors 1.1 criteria.
• Overall survival [ Time Frame: The time from randomization to death from any cause, assessed up to 5 years ]
  Analysis will be based on the intent to treat population. The Kaplan-Meier estimates will be calculated by treatment arms. Stratified Cox proportional hazards models to estimate the hazard ratio.

• Current Other Pre-specified Outcome Measures: Not Provided
• Original Other Pre-specified Outcome Measures: Not Provided

Descriptive Information

• Brief Title: Testing the Drug Atezolizumab or Placebo With Usual Therapy in First-Line HER2-Positive Metastatic Breast Cancer
• Official Title: A Randomized, Double-Blind, Phase III Trial of Taxane/Trastuzumab/Pertuzumab With Atezolizumab or Placebo in First-Line HER2-Positive Metastatic Breast Cancer

Brief Summary

This randomized phase III trial studies how well paclitaxel, trastuzumab, and pertuzumab with or without atezolizumab works in treating patients with breast cancer that has spread to other parts of the body (metastatic). Chemotherapy drugs, such as paclitaxel, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Trastuzumab is a form of "targeted therapy" because it works by attaching itself to specific molecules (receptors) on the surface of cancer cells, known as HER2 receptors. When trastuzumab attaches to HER2 receptors, the signals that tell the cells to grow are blocked and the cancer cell may be marked for destruction by the body's immune system. Monoclonal antibodies, such as pertuzumab, may interfere with the ability of cancer cells to grow and spread. Immunotherapy with monoclonal antibodies, such as atezolizumab, may induce changes in body's immune system and may interfere with the ability of tumor cells to grow and spread. It is not yet known whether giving paclitaxel, trastuzumab, and pertuzumab with or without atezolizumab may kill more tumor cells.

*NOTE: This study has a central confirmation step. The purpose of this step is to confirm by central testing that the patient's tumor has specific receptors. If the patient meets all the study requirements, the patient will join the study and begin therapy for breast cancer while the tumor is being tested.

Detailed Description

PRIMARY OBJECTIVE:

I. To determine whether the addition of atezolizumab to a regimen of pertuzumab and trastuzumab combined with a taxane (paclitaxel or docetaxel) will improve the progression-free survival (PFS), assessed by investigator using Response Evaluation Criteria in Solid Tumors (RECIST) 1.1 criteria, relative to the addition of a placebo to a regimen of pertuzumab and trastuzumab combined with a taxane (paclitaxel or docetaxel) in patients with newly documented HER2-positive measurable metastatic breast cancer.

SECONDARY OBJECTIVES:

I. To determine whether the addition of atezolizumab to a regimen of pertuzumab and trastuzumab combined with a taxane (paclitaxel or docetaxel) will improve the overall survival (OS) relative to the addition of placebo to a regimen of pertuzumab and trastuzumab, combined with a taxane (paclitaxel or docetaxel).

II. To determine whether the addition of atezolizumab to a regimen of pertuzumab and trastuzumab combined with a taxane (paclitaxel or docetaxel) will improve the overall objective response (OR), assessed by investigator using RECIST 1.1 criteria, relative to the addition of placebo to a regimen of pertuzumab and trastuzumab combined with a taxane (paclitaxel or docetaxel).

III. To determine whether the addition of atezolizumab to a regimen of pertuzumab and trastuzumab combined with a taxane (paclitaxel or docetaxel) will improve PFS, OR, and/or duration of objective response assessed by retrospective blinded central review using RECIST 1.1 criteria, relative to the addition of placebo to a regimen of pertuzumab and trastuzumab combined with a taxane (paclitaxel or docetaxel).

IV. To determine whether the addition of atezolizumab to a regimen of pertuzumab and trastuzumab combined with a taxane (paclitaxel or docetaxel) will decrease the incidence of subsequent brain metastases in patients without known brain metastases at study entry relative to the addition of placebo to a regimen of pertuzumab and trastuzumab combined with a taxane (paclitaxel or docetaxel).

V. To determine whether the addition of atezolizumab to a regimen of pertuzumab and trastuzumab combined with a taxane (paclitaxel or docetaxel) will contribute to increased patient-reported fatigue in comparison to the addition of placebo to a regimen of pertuzumab and trastuzumab combined with a taxane (paclitaxel or docetaxel).

VI. To determine the utility of PD-L1 immunohistochemistry (IHC) staining as a predictive and prognostic biomarker associated with clinical response, as assessed by investigator using RECIST 1.1 criteria, to atezolizumab in combination with trastuzumab and pertuzumab combined with a taxane (paclitaxel or docetaxel).

VII. To determine the immune-related toxicity profile of the two treatment regimens.

VIII. To determine the cardiac safety profile of the two treatment regimens.

EXPLORATORY OBJECTIVES:

I. To determine whether the addition of atezolizumab to a regimen of pertuzumab and trastuzumab combined with a taxane (paclitaxel or docetaxel) will improve the progression-free survival and overall objective response, assessed by investigator using immune-modified RECIST (iRECIST) criteria, relative to the addition of a placebo to a regimen of pertuzumab and trastuzumab combined with a taxane (paclitaxel or docetaxel).

II. To identify potential biomarkers that can predict benefit from the addition of atezolizumab in patients with newly documented HER2-positive measurable metastatic breast cancer treated with a regimen of pertuzumab and trastuzumab combined with a taxane (paclitaxel or docetaxel).

III. To explore the toxicity profile of the two treatment regimens using patient-reported symptomatic adverse events in addition to standard adverse event reports.

IV. To determine the feasibility and added value of frequent assessment of toxicity using Patient Reported Outcomes (PRO)-Common Terminology Criteria for Adverse Events (CTCAE) with electronic(e)PRO reporting.

OUTLINE:

STEP 1: Patients receive pertuzumab intravenously (IV) over 30-60 minutes on days 1 and 22, trastuzumab IV over 30-90 minutes on days 1 and 22, and paclitaxel IV over 60 minutes on days 1, 8, 15, 22, 29, and 36 or docetaxel IV over 60 minutes on days 1 and 22. Treatment continues for 6 weeks in the absence of disease progression or unacceptable toxicity.

STEP 2: Patients are randomized to 1 of 2 arms.

ARM I: Patients receive pertuzumab IV over 30-60 minutes on days 1 and 22, trastuzumab IV over 30-90 minutes on days 1 and 22, and paclitaxel IV over 60 minutes on days 1, 8, 15, 22, 29, and 36 or docetaxel IV over 60 minutes on days 1 and 22. Cycles repeat every 6 weeks in the absence of disease progression or unacceptable toxicity. Patients also receive atezolizumab IV over 30-60 minutes on day 22 of cycle 1 and days 1 and 22 of subsequent cycles. Cycles repeat every 6 weeks for 2 years in the absence of disease progression or unacceptable toxicity.

ARM II: Patients receive pertuzumab, trastuzumab, and paclitaxel or docetaxel as in Arm I. Patients also receive placebo IV 30-60 minutes on day 22 of cycle 1 and days 1 and 22 of subsequent cycles. Cycles repeat every 6 weeks for 2 years in the absence of disease progression or unacceptable toxicity.

After completion of study treatment, patients are followed up every 3 months for 3 years and then every 6 months for 4 years.

• Study Type: Interventional
• Study Phase: Phase 3
• Study Design: Allocation: Randomized; Intervention Model: Parallel Assignment; Masking: Triple (Participant, Care Provider, Investigator); Primary Purpose: Treatment

Condition

• Breast Adenocarcinoma
• Metastatic Breast Adenocarcinoma
• Recurrent Breast Carcinoma
• Stage III Breast Cancer AJCC v7
• Stage IIIA Breast Cancer AJCC v7
• Stage IIIB Breast Cancer AJCC v7
• Stage IIIC Breast Cancer AJCC v7
• Stage IV Breast Cancer AJCC v6 and v7
• Unresectable Breast Carcinoma

Intervention

• Drug: Atezolizumab
  Given IV
  Other Names:

  • MPDL 3280A
  • MPDL 328OA
  • MPDL-3280A
  • MPDL3280A
  • MPDL328OA
  • RG7446
  • RO5541267
  • Tecentriq
• Drug: Docetaxel
  Given IV
  Other Names:

  • Docecad
  • RP56976
  • Taxotere
  • Taxotere Injection Concentrate
• Drug: Paclitaxel
  Given IV
  Other Names:

  • Anzatax
  • Asotax
  • Bristaxol
  • Praxel
  • Taxol
  • Taxol Konzentrat
• Biological: Pertuzumab
  Given IV
  Other Names:

  • 2C4
  • 2C4 Antibody
  • HLX11
  • HS627
  • MoAb 2C4
  • Monoclonal Antibody 2C4
  • Omnitarg
  • Perjeta
  • Pertuzumab Biosimilar HLX11
  • Pertuzumab Biosimilar HS627
  • rhuMAb2C4
  • RO4368451
• Other: Placebo Administration
  Given IV
• Other: Quality-of-Life Assessment
  Ancillary studies
  Other Name: Quality of Life Assessment
• Biological: Trastuzumab
  Given IV
  Other Names:

  • ABP 980
  • ALT02
  • Anti-c-ERB-2
  • Anti-c-erbB2 Monoclonal Antibody
  • Anti-ERB-2
  • Anti-erbB-2
  • Anti-erbB2 Monoclonal Antibody
  • Anti-HER2/c-erbB2 Monoclonal Antibody
  • Anti-p185-HER2
  • c-erb-2 Monoclonal Antibody
  • HER2 Monoclonal Antibody
  • Herceptin
  • Herceptin Biosimilar PF-05280014
  • Herceptin Trastuzumab Biosimilar PF-05280014
  • Herzuma
  • Kanjinti
  • MoAb HER2
  • Monoclonal Antibody c-erb-2
  • Monoclonal Antibody HER2
  • Ogivri
  • Ontruzant
  • PF-05280014
  • rhuMAb HER2
  • RO0452317
  • SB3
  • Trastuzumab Biosimilar ABP 980
  • Trastuzumab Biosimilar ALT02
  • trastuzumab biosimilar EG12014
  • Trastuzumab Biosimilar HLX02
  • Trastuzumab Biosimilar PF-05280014
  • Trastuzumab Biosimilar SB3
  • Trastuzumab Biosimilar SIBP-01
  • Trastuzumab-anns
  • Trastuzumab-dkst
  • Trastuzumab-dttb
  • Trastuzumab-pkrb
  • Trastuzumab-qyyp
  • Trazimera

Study Arms

• Experimental: Arm I (pertuzumab, trastuzumab, taxane therapy, atezolizumab)
  Patients receive pertuzumab IV over 30-60 minutes on days 1 and 22, trastuzumab IV over 30-90 minutes on days 1 and 22, and paclitaxel IV over 60 minutes on days 1, 8, 15, 22, 29, and 36 or docetaxel IV over 60 minutes on days 1 and 22. Cycles repeat every 6 weeks in the absence of disease progression or unacceptable toxicity. Patients also receive atezolizumab IV over 30-60 minutes on day 22 of cycle 1 and days 1 and 22 of subsequent cycles. Cycles repeat every 6 weeks for 2 years in the absence of disease progression or unacceptable toxicity.
  Interventions:

  • Drug: Atezolizumab
  • Drug: Docetaxel
  • Drug: Paclitaxel
  • Biological: Pertuzumab
  • Other: Quality-of-Life Assessment
  • Biological: Trastuzumab
• Active Comparator: Arm II (pertuzumab, trastuzumab, taxane therapy, placebo)
  Patients receive pertuzumab, trastuzumab, and paclitaxel or docetaxel as in Arm I. Patients also receive placebo IV 30-60 minutes on day 1 of cycle 22 and days 1 and 22 of subsequent cycles. Cycles repeat every 6 weeks for 2 years in the absence of disease progression or unacceptable toxicity.
  Interventions:

  • Drug: Docetaxel
  • Drug: Paclitaxel
  • Biological: Pertuzumab
  • Other: Placebo Administration
  • Other: Quality-of-Life Assessment
  • Biological: Trastuzumab

• Publications *: Not Provided

Recruitment Information

• Recruitment Status: Active, not recruiting
• Estimated Enrollment (submitted: July 9, 2018): 600
• Original Estimated Enrollment (submitted: June 26, 2017): 480
• Estimated Study Completion Date: January 31, 2023
• Estimated Primary Completion Date: January 31, 2023 (Final data collection date for primary outcome measure)

Eligibility Criteria

Inclusion Criteria:

• The patient must have signed and dated an Institutional Review Board (IRB)-approved consent form that conforms to federal and institutional guidelines
• Patient must have an Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1

• Histologically confirmed adenocarcinoma of the breast with locally recurrent, unresectable disease or metastatic disease outside the central nervous system (CNS) confirmed as described below; eligible patients include those with either:

  • De novo metastatic disease presenting without prior history of HER2-positive breast cancer:

    • Diagnosis should have been made from a biopsy of a metastatic disease site, but biopsy from the breast primary or involved regional lymph nodes is acceptable if biopsy of the metastatic sites was thought to carry excessive risk for the patient

  • Locally recurrent or metastatic disease following prior therapy for early breast cancer:

    • Diagnosis must have been made from the biopsy of the locally recurrent or metastatic disease
    • There must be an interval of >= 6 months between completion of neoadjuvant/adjuvant HER2-targeted therapy and documentation of locally recurrent or metastatic HER2-positive disease by biopsy
• Patients must have measurable disease based on RECIST 1.1, as determined by the site, which has not been irradiated to be eligible

• Patients with brain metastases are eligible if they meet ALL the following criteria:

  • Four or fewer metastatic sites to CNS
  • Largest unexcised tumor does not exceed 3 cm
  • No metastases to brain stem, midbrain, pons, medulla or the optic nerves and chiasm
  • Must have measurable disease outside the CNS, based on RECIST 1.1, as determined by the site, which has not been irradiated
  • If patient presented with symptoms from CNS metastases, the symptoms must have resolved with initiation of steroids and initial local therapy (surgery, radiation therapy, or both)
  • Must have been evaluated by Medical Oncologist and plan is to administer trastuzumab, pertuzumab, and a taxane as first-line systemic therapy
  • May have received administration of trastuzumab OR lapatinib concurrently with radiation therapy for brain metastases. Toxicities related to lapatinib if administered, should be =< grade 1 per the CTCAE v5.0, and the lapatinib must have been completed at least 2 weeks prior to study entry
  • No history of intracranial hemorrhage or spinal cord hemorrhage
  • No neurosurgical resection or brain biopsy within 10 days prior to study entry
• After study entry and before randomization, send tissue for central HER2 confirmation; a tumor specimen obtained at the time of diagnosis of locally recurrent or metastatic disease must have been determined to be HER2-positive based on local testing according to American Society of Clinical Oncology/College of American Pathologists (ASCO/CAP) guidelines (Wolff 2018); HER2 status should initially be assessed using an Food and Drug Administration (FDA)-cleared IHC assay; positive is defined as IHC 3+ staining intensity; if HER2 IHC results are equivocal (2+), then HER2 status will be determined using a FDA-cleared HER2 in situ hybridization (ISH) test according to ASCO/CAP guidelines; Note: Once HER2-positive is confirmed on central testing, patients will be randomized to atezolizumab/placebo; randomization within 14 days from study entry will ensure that the Pharmaceutical Management Branch (PMB)-supplied agents will be received at the site for treatment on day 22 of cycle 1
• The tumor specimen obtained at the time of diagnosis used for HER2 testing must also have central testing for PD-L1 status; patients will be eligible irrespective of PD-L1 testing result including PD-L1 indeterminant
• The tumor specimen obtained at the time of diagnosis used for HER2 and PD-L1 testing should also have central testing for estrogen receptor (ER) and progesterone receptor (PgR) according to current ASCO/CAP guideline recommendations for hormone receptor testing; patients with < 1% ER and PgR staining by IHC will be classified as negative; if enough material for central confirmation of ER and PgR is unavailable, local testing results for ER and PgR may be used for eligibility
• Localized palliative radiation therapy to sites of non-measurable disease is allowed for symptom management and may begin prior to study entry and continue following study entry while receiving study therapy
• Patients must have imaging of the chest/abdomen/pelvis, preferably with a computed tomography (CT) scan, and a bone scan within 5 weeks prior to study entry; (NOTE: if a patient is unable to receive CT contrast, a magnetic resonance imaging [MRI] of the abdomen/pelvis and non-contrast chest CT should be performed; positron emission tomography/computed tomography [PET/CT] is not an acceptable alternative)
• MRI of the brain (or contrast CT scan of the brain if patients are unable to undergo MRI) must be obtained in patients with symptoms suggesting possible central nervous system (CNS) metastatic disease; neuroimaging is recommended but not required in asymptomatic patients
• Absolute neutrophil count (ANC) must be >= 1200/mm^3 (within 14 days prior to study entry)
• Platelet count must be >= 100,000/mm^3 (within 14 days prior to study entry)
• Hemoglobin must be >= 8 g/dL (within 14 days prior to study entry)
• Total bilirubin must be =< 1.5 x upper limit of normal (ULN) for the lab or direct bilirubin =< ULN for patients with bilirubin levels > 1.5 x ULN (within 14 days prior to study entry)
• Aspartate aminotransferase (AST) and alanine aminotransaminase (ALT) must be =< 2.5 x ULN for the lab or =< 5 x ULN for patients with liver metastases (within 14 days prior to study entry)
• Serum creatinine =< 1.5 x ULN or measured or calculated creatinine clearance >= 50 mL/min using the Cockroft-Gault formula for patients with creatinine levels > 1.5 x ULN for the lab (within 14 days prior to study entry)
• Patients not receiving anti-coagulant therapy must have prothrombin time (PT) and international normalized ratio (INR) =< 1.5 x ULN within 14 days prior to study entry; for laboratories that do not report an ULN for the INR assay, use =< 1.5 as the value for the ULN; patients receiving anti-coagulants should have a baseline INR assessed, but the value does not affect eligibility
• A serum thyroid-stimulating hormone (TSH) and AM (preferably in morning) cortisol must be obtained within 14 days prior to study entry to obtain a baseline value; patients with abnormal TSH or AM cortisol baseline levels should be further evaluated and managed per institutional standards; asymptomatic patients who require initiation or adjustment of medication or are followed without initiating treatment based on endocrinologist's recommendations are eligible
• Left ventricular ejection fraction (LVEF) assessment must be performed within 6 weeks prior to study entry; (LVEF assessment performed by echocardiogram is preferred; however, multigated acquisition scan (MUGA) scan may be substituted based on institutional preferences); the LVEF must be >= 50% regardless of the cardiac imaging facility's lower limit of normal
• Administration of atezolizumab may have an adverse effect on pregnancy and poses a risk to the human fetus, including embryo-lethality; women of child-bearing potential and men must agree to use adequate contraception (non-hormonal or barrier method of birth control; abstinence) prior to study entry, for the duration of study participation, and for 5 months (150 days) after the last dose of atezolizumab/placebo and 7 months after the last dose of trastuzumab and pertuzumab; should a woman become pregnant or suspect she is pregnant while she or her partner is participating in this study, she should inform her treating physician immediately
• Human immunodeficiency virus (HIV)-infected patients on effective anti-retroviral therapy with undetectable viral load within 6 months of study entry are eligible for this trial

Exclusion Criteria:

• Patients with brain metastases are excluded if they meet ANY of the following criteria:

  • Symptoms from brain metastases have not resolved prior to study entry
  • Five or more clearly identified foci of metastases to the brain
  • Largest unexcised tumor exceeds 3 cm
  • Spinal cord metastases
  • Medical Oncologist plans to employ HER2-directed tyrosine kinase inhibitor as component of systemic therapy
  • Metastatic disease limited to CNS
• Leptomeningeal carcinomatosis
• History of systemic anti-cancer therapy (e.g., chemotherapy, targeted therapy) for metastatic breast cancer (MBC) except as described in inclusion criteria
• History of exposure to cumulative doses of doxorubicin greater than 360 mg per square meter of body-surface area or its equivalent
• Prior treatment with mTOR inhibitors or CDK 4/6 inhibitors in combination with endocrine therapy for treatment of metastatic disease
• Prior treatment with CD137 agonists or immune checkpoint-blockade therapies, including anti-CD40, anti-CTLA-4, anti-PD-1, and anti-PD-L1 therapeutic antibodies
• History of non-breast malignancies (except for in situ cancers treated only by local excision and basal cell and squamous cell carcinomas of the skin) within 5 years prior to study entry
• Uncontrolled hypertension defined as sustained systolic blood pressure (BP) > 150 mmHg or diastolic BP > 90 mmHg; (patients with initial BP elevations are eligible if initiation or adjustment of BP medication lowers pressure to meet entry criteria)
• History of asymptomatic LVEF decline to < 40% during or after prior HER2-targeted therapy even if the current LVEF is >= 50%

• Cardiac disease (history of and/or active disease) that would preclude the use of the drugs included in the treatment regimens; this includes but is not confined to:

  • Active cardiac disease

    • Angina pectoris that requires the current use of anti-anginal medication;
    • Ventricular arrhythmias except for benign premature ventricular contractions;
    • Supraventricular and nodal arrhythmias requiring a pacemaker or not controlled with medication;
    • Conduction abnormality requiring a pacemaker;
    • Valvular disease with documented compromise in cardiac function; or
    • Symptomatic pericarditis

  • History of cardiac disease

    • Prior myocardial infarction documented by elevated cardiac enzymes or persistent regional wall abnormalities on assessment of left ventricular (LV) function;
    • History of documented congestive heart failure (CHF) defined as symptomatic heart failure with an LVEF < 40%; or
    • Documented cardiomyopathy
• Nervous system disorder (paresthesia, peripheral motor neuropathy, or peripheral sensory neuropathy) >= grade 2, per the CTCAE v 5.0
• History of severe allergic, anaphylactic, or other hypersensitivity reactions to pertuzumab or trastuzumab or to any of its excipients, as well as any chimeric or humanized antibodies or fusion proteins
• Known hypersensitivity to biopharmaceuticals produced in Chinese hamster ovary cells or other recombinant antibodies
• Known allergy or hypersensitivity to the components of the atezolizumab formulation or to any of the study drugs or excipients, (e.g., Cremophor EL, polysorbate 80)

• History or risk of autoimmune disease, including, but not limited to, systemic lupus erythematosus, rheumatoid arthritis, inflammatory bowel disease, vascular thrombosis associated with antiphospholipid syndrome, Wegener's granulomatosis, Sjogren's syndrome, Bell's palsy, Guillain-Barre syndrome, multiple sclerosis, autoimmune thyroid disease, vasculitis, or glomerulonephritis

  • Patients with a history of autoimmune hypothyroidism on a stable dose of thyroid replacement hormone may be eligible
  • Patients with controlled type 1 diabetes mellitus on a stable insulin regimen may be eligible

  • Patients with eczema, psoriasis, lichen simplex chronicus of vitiligo with dermatologic manifestations only (e.g., patients with psoriatic arthritis would be excluded) are permitted provided that they meet the following conditions:

    • Patients with psoriasis must have a baseline ophthalmologic exam to rule out ocular manifestations
    • Rash must cover less than 10% of body surface area (BSA)
    • Disease is well controlled at baseline and only requiring low-potency topical steroids (e.g., hydrocortisone 2.5%, hydrocortisone butyrate 0.1%, flucinolone 0.01%, desonide 0.05%, aclometasone dipropionate 0.05%)
    • No acute exacerbations of underlying conditions within the last 12 months (not requiring psoralen plus ultraviolet A radiation [PUVA], methotrexate, retinoids, biologic agents, oral calcineurin inhibitors; high potency or oral steroids)
• Treatment with systemic immunosuppressive medications (including but not limited to interferons, IL-2) within 4 weeks or 5 half-lives of the drug, whichever is longer, prior to study entry
• Treatment with systemic immunosuppressive medications (including but not limited to prednisone, cyclophosphamide, azathioprine, methotrexate, thalidomide, and anti-tumor necrosis [anti-TNF] factor agents) within 14 days prior to study entry or anticipation of need for systemic immunosuppressive medications during the study; Note: Intranasal and inhaled corticosteroids or systemic corticosteroids at doses that do not exceed 10 mg/day of prednisone or an equivalent corticosteroid are allowed
• Has a diagnosis of immunodeficiency or is receiving systemic steroid therapy or any other form of immunosuppressive therapy within 2 weeks prior to study entry
• Active hepatitis B virus (HBV) infection, defined as having a positive hepatitis B surface antigen (HBsAg) test at screening; patients with a past or resolved HBV infection, defined as having a negative HBsAg test and a positive total hepatitis B core antibody (HBcAb) test at screening, are eligible for the study if active HBV infection is ruled out on the basis of HBV deoxyribonucleic acid (DNA) viral load per local guidelines
• Active hepatitis C virus (HCV) infection, defined as having a positive HCV antibody test at screening confirmed by a polymerase chain reaction (PCR) positive for HCV ribonucleic acid (RNA)
• Patients with clinically active tuberculosis
• Severe infection within 4 weeks prior to study entry, including but not limited to hospitalization for complications of infection, bacteremia, or severe pneumonia
• Prior allogeneic stem cell or solid organ transplantation
• Symptomatic peripheral ischemia
• History of idiopathic pulmonary fibrosis, organizing pneumonia (e.g., bronchiolitis obliterans), drug-induced pneumonitis, idiopathic pneumonitis, or evidence of active pneumonitis or >= grade 1 pulmonary fibrosis, per the CTCAE v5.0, on screening chest CT scan
• Administration of a live, attenuated vaccine within 4 weeks prior to study entry or anticipation tha

Sex/Gender

• Sexes Eligible for Study: All

• Ages: 18 Years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Contacts: Contact information is only displayed when the study is recruiting subjects
• Listed Location Countries: Canada, United States

Administrative Information

• NCT Number: NCT03199885
• Other Study ID Numbers: NCI-2017-01119; NCI-2017-01119 ( Registry Identifier: CTRP (Clinical Trial Reporting Program) ); NRG-BR004 ( Other Identifier: NRG Oncology ); NRG-BR004 ( Other Identifier: CTEP ); U10CA180868 ( U.S. NIH Grant/Contract )
• Has Data Monitoring Committee: No

U.S. FDA-regulated Product

• Studies a U.S. FDA-regulated Drug Product: Yes
• Studies a U.S. FDA-regulated Device Product: No

IPD Sharing Statement

• Plan to Share IPD: Yes
• Plan Description: NCI is committed to sharing data in accordance with NIH policy. For more details on how clinical trial data is shared, access the link to the NIH data sharing policy page
• URL: https://grants.nih.gov/policy/sharing.htm

• Current Responsible Party: National Cancer Institute (NCI)
• Original Responsible Party: Same as current
• Current Study Sponsor: National Cancer Institute (NCI)
• Original Study Sponsor: Same as current
• Collaborators: NRG Oncology

Investigators

• Principal Investigator: Charles E Geyer; NRG Oncology

• PRS Account: National Cancer Institute (NCI)
• Verification Date: May 2022