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About
This is a multicenter, national, nonrandomized, phase II trial in subjects with nonsquamous NSCLC patients that have untreated asymptomatic BM. A pre-screening period using brain MRI for patients diagnosed with advanced non-squamous NSCLC EGFR/ALK wild type and ECOG PS 0-1 will be crucial to identify patients with asyntomatic BM. Forty patients will be recruited.
Full description
Atezolizumab will be administered intravenously (iv) at a dose of 1200 mg over 60 minutes on day 1 of each cycle. The subsequent cycles of atezolizumab can be administered over 30 minutes, if there were no infusion-related toxicities. Pemetrexed will be administered at a dose of 500 mg/m2 iv over 15 minutes on day 1 of each cycle. In addition, folic acid, vitamin B12, and dexamethasone 4mg bid will be administered one day before and after pemetrexed treatment. Carboplatin will be administered at a dose with an area under the curve of 5 over 30 minutes on day 1 of each cycle approximately 30 minutes after the end of the pemetrexed infusion. After completing 4 to 6 cycles of carboplatin plus pemetrexed and atezolizumab, patients will continue with pemetrexed in combination with atezolizumab until unacceptable toxicity, disease progression, patient/physician decision or completion of 2 years of therapy.
Tumor measurements by CT scan (systemic response) and brain MRI (intracranial response) will be performed every 6 weeks until the 12th week and thereafter every 9 weeks until disease progression. In case of brain progression, rescue with brain radiotherapy should be considered. In case of exclusive brain progression, patients are allowed to receive brain radiotherapy (WBRT or SRS) and then continue with study therapy if the patients maintain clinical benefit and appropriate performance status (ECOG PS≤2).Immunotherapy should be started no later than 4 weeks after completing radiation therapy (brain radiotherapy 2 weeks + 4 weeks of recovery from potential acute toxicity). In case of systemic progression without brain progression, a novel line of systemic treatment should be considered. Patients experiencing systemic progression and/or brain progression will be followed and two post-progression visits will be performed at 30 and 90 days.
Response will be assessed independently in the brain and systemically: systemic response will be evaluated according to RECIST v1.1 and brain response according to the RANO response assessment criteria for BM (RANO-BM). Adverse events will be assessed throughout and assessed using the CTCAE version 4.03. EORTC quality of life questionnaire EORTC C30 and the submodules QLQ-LC13 and BN20 will be assessed in the ITT population at baseline, cycle 5 (week 12),cycle 9 (week 24), at end of study treatment (30 and 90 days) and/or at disease progression. Periodic evaluations of the trial data will be conducted by an independent DMC to ensure subject safety and to evaluate the efficacy at the interim analyses. Neurocognitive assessment including the standardized neuropsychological tests: Hopkins Verbal Learning Test (HVLT), Trail Making Test (TMT), Rey-Osterrieth complex figure test (ROCF) and Controlled Oral Word Association Test (COWA) will be assessed at baseline cycle 5 (week 12),cycle 9 (week 24), at end of study treatment (30 and 90 days) and/or at disease progression.
Enrollment
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Inclusion criteria
ANC ≥ 1,500 cells/μL o Lymphocyte count ≥ 500 cells/μL o Platelet count ≥ 100,000 cells μL o Hemoglobin ≥ 9.0 g/dL (transfusion are is allowed) o INR or aPTT ≤ 1.5 x upper limit of normal (ULN); patients receiving therapeutic anticoagulation should be on a stable dose o ALT, AST and/or alkaline phosphatase ≤ 2.5 x ULN, with the following exceptions: -patients with known liver metastasis: ALT and/or AST ≤ 5 x ULN -patients with known bone metastasis: alkaline phosphatase ≤ 5 x ULN o Serum bilirubin ≤ 1.5 x ULN; patients with known Gilbert disease who have serum bilirubin ≤ 3 x ULN may be recruited) o Calculated creatinine clearance (CRCL) ≥ 45 mL/min (based on the standard Cockcroft and Gault formula).
Exclusion criteria
History of other malignancy within 3 years prior to screening, except for appropriately treated carcinoma in situ of the cervix, non-melanoma skin carcinoma, or Stage I uterine cancer
Patients harboring an EGFR mutation or an ALK fusion will be excluded
Leptomeningeal carcinomatosis or metastases in the brain stem, mid-brain, pons, medulla or lesions causing obstructive hydrocephalus
Patients with neurological symptoms, including those receiving > 4mg of dexamethasone will not be eligible for this study
Spinal or hemorrhagic metastases will be excluded
Prior surgical resection of brain or spinal lesions in the prior 14 days
Previous systemic treatment or neo-adjuvant or adjuvant chemotherapy less than 6 months before enrollment
Clinical significant comorbidities that impaired administration of platinum-based chemotherapy
History of autoimmune disease, including but not limited to myasthenia gravis, myosistis, autoimmune hepatitis, systemic lupus erythematosus, rheumatoid arthritis, inflammatory bowel disease, vascular thrombosis associated with antiphospholipid syndrome, Wegener's granulomatosis, Sjögren syndrome, Guillain-Barré syndrome, multiple sclerosis, vasculitis or glomerulonephritis
History of idiopathic pulmonary fibrosis, drug-induced pneumonitis or active radiation pneumonitis out of the radiation field
Previous treatment with immune checkpoint inhibitors or CD137 and OX-40 agonists
Treatment with investigational therapy within 28 days prior to initiation of study drug - Positive for hepatitis C virus (HCV) antibody or for hepatitis B surface antigen (HBsAg) at screening. Patients with past or resolved hepatitis B virus (HBV) infection (HBcAb positive with absence of HBsAg) would be eligible whether they are negative for HBV DNA. Patients positive for HCV antibody would be eligible whether they are negative for HCV RNA
Active tuberculosis or HIV infection
Illicit drug or alcohol abuse within 12 months prior to screening, in the investigator's judgment.
Any serious medical condition or abnormality in clinical laboratory tests that, in the investigator's judgment, precludes the patient's safe participation in and completion of the study.
Primary purpose
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40 participants in 1 patient group
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Data sourced from clinicaltrials.gov
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