Osimertinib With or Without Bevacizumab in Treating Patients With EGFR Positive Non-small Cell Lung Cancer and Brain Metastases

Study Overview
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Brief Summary
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This phase II trial studies how well osimertinib with or without bevacizumab works in treating patients with EGFR positive non-small cell lung cancer that has spread to the brain (brain metastases). Osimertinib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Bevacizumab may stop or slow non-small cell lung cancer by blocking the growth of new blood vessels necessary for tumor growth. Giving osimertinib with or without bevacizumab may work better in treating patients with non-small cell lung cancer.

Detailed Description
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PRIMARY OBJECTIVE: I. To determine the progression-free survival with osimertinib (AZD9291) plus bevacizumab compared to osimertinib (AZD9291) alone. SECONDARY OBJECTIVES: I. To assess the safety and tolerability of the combination of osimertinib (AZD9291) and bevacizumab. II. To evaluate the time to progression in the central nervous system (CNS) with osimertinib (AZD9291) plus bevacizumab versus single-agent osimertinib (AZD9291). III. To determine the overall response rate and the intracranial response rate to the combination versus single agent. IV. To assess the overall survival in patients receiving osimertinib (AZD9291) plus bevacizumab compared to osimertinib (AZD9291) alone. TRANSLATIONAL OBJECTIVES: I. To investigate mechanisms of sensitivity and resistance to combination osimertinib (AZD9291) plus bevacizumab versus osimertinib (AZD9291) by molecularly characterizing tumor samples including T790M status. II. To assess whether circulating tumor deoxyribonucleic acid (DNA) in plasma can be used as an indicator of sensitivity and resistance to treatment. III. To determine whether an angiogenic signature using a multiplex panel array is associated with benefit from the combination of osimertinib (AZD9291) plus bevacizumab. IV. To investigate angiogenesis, immune and signaling pathway markers in tumor samples to determine biomarkers predictive of benefit from combination therapy. OUTLINE: Patients are randomized to 1 of 2 arms. ARM I: Patients receive osimertinib orally (PO) once daily (QD) on days 1-21 and bevacizumab intravenously (IV) over 30-90 minutes on day 1. Cycles repeat every 21 days in the absence of disease progression or unacceptable toxicity. ARM II: Patients receive osimertinib PO QD on days 1-21. Cycles repeat every 21 days in the absence of disease progression or unacceptable toxicity. Patients undergo computed tomography (CT) scan, magnetic resonance imaging (MRI), tumor biopsy and blood sample collection throughout the study. After completion of study treatment, patients are followed up for a minimum of 4 weeks.

Official Title
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A Phase II Trial of Osimertinib (AZD9291) With or Without Bevacizumab in Patients With EGFR Mutation Positive NSCLC and Brain Metastases

Conditions
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Metastatic Lung Non-Small Cell Carcinoma, Metastatic Malignant Neoplasm in the Brain, Stage IV Lung Cancer AJCC v8

Intervention / Treatment
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* Biological: Bevacizumab
* Procedure: Biopsy
* Procedure: Biospecimen Collection
* Procedure: Computed Tomography
* Procedure: Magnetic Resonance Imaging
* Drug: Osimertinib


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Non-small cell lung cancer (NSCLC) with an activating EGFR mutation (exon 19 deletion, L858R point mutation, or any other mutation known to be associated with EGFR TKI sensitivity); presence of an activating EGFR mutation may be documented in tumor tissue or by plasma testing if performed in a Clinical Laboratory Improvement Act (CLIA)-certified laboratory No prior treatment with an EGFR TKI; patient may have received prior chemotherapy for early-stage or advanced disease but this is not required; prior immunotherapy is not allowed Patients must have at least one measurable CNS lesion that is asymptomatic, untreated, and does not require local therapy at the time of enrollment; measurable CNS disease is defined as a brain metastasis that can be accurately measured in at least one dimension (longest diameter to be recorded) as >= 5 mm (>= 0.5 cm) with brain magnetic resonance imaging (MRI); if the lesion is 5-10 mm in size and is the only measurable disease, MRI imaging must be performed with 1.5 mm slice thickness or less; a history of previously treated brain metastases is allowed, however any lesion present at the time of whole brain radiotherapy or included in the stereotactic radiotherapy field (or within 2 mm of the treated lesion) will NOT be considered untreated unless it is new or documented to have progressed unequivocally since treatment Patients are not required to have measurable systemic (i.e. non-CNS) disease; if present, measurable systemic disease must be able to be accurately measured in at least one dimension (longest diameter to be recorded for non-nodal lesions and short axis for nodal lesions) as >= 20 mm (>= 2 cm) with conventional techniques or as >= 10 mm (>= 1 cm) with spiral computed tomography (CT) scan, MRI, or calipers by clinical exam Age >= 18 years Eastern Cooperative Oncology Group (ECOG) performance status =< 2 Life expectancy of greater than 3 months The use of anti-convulsants is allowed, as long as the patient is on a stable dose with no seizure activity for at least 2 weeks prior to initiating trial therapy Female subjects should be using highly effective contraceptive measures, and must have a negative pregnancy test and not be breast-feeding prior to start of dosing if of child- bearing potential or must have evidence of non-child-bearing potential by fulfilling one of the following criteria at screening: Post-menopausal defined as aged more than 50 years and amenorrheic for at least 12 months following cessation of all exogenous hormonal treatments Women under 50 years old would be consider postmenopausal if they have been amenorrheic for 12 months or more following cessation of exogenous hormonal treatments and with luteinizing hormone (LH) and follicle stimulating hormone (FSH) levels in the post-menopausal range for the institution Documentation of irreversible surgical sterilization by hysterectomy, bilateral oophorectomy or bilateral salpingectomy but not tubal ligation Fertile men should be willing to use barrier contraception during and for 4 months after osimertinib (AZD9291), and fertile women must agree to use adequate contraceptive measures during and for 6 weeks after osimertinib (AZD9291); fertile men and women must agree to use adequate contraceptive measures during study therapy and for at least 6 months after the completion of bevacizumab therapy; should a woman become pregnant or suspect she is pregnant while she or her partner is participating in this study, the patient should inform the treating physician immediately Ability to understand and the willingness to sign a written informed consent document Exclusion Criteria: Symptomatic brain metastases or symptomatic leptomeningeal disease; asymptomatic leptomeningeal disease is allowed Patients with brain metastases for whom complete surgical resection is clinically appropriate Prior treatment with any EGFR TKI Prior treatment with agents targeting the VEGF pathway, including bevacizumab The use of corticosteroids to control cerebral edema or treat neurologic symptoms will not be allowed, and patients who previously required corticosteroids for symptom control must be off steroids for at least 3 days without recurrence of symptoms prior to starting trial therapy; corticosteroids for other indications is allowed Patients may not be receiving any other investigational agents and may not have participated in a study of an investigational agent or using an investigational device within five half-lives of the compound or 3 months, whichever is greater Any unresolved toxicities from prior therapy greater than Common Terminology Criteria for Adverse Events (CTCAE) grade 1 at the time of starting study treatment with the exception of alopecia and grade 2 platinum-therapy related neuropathy Concurrent, active malignancies in addition to that being studied (other than cutaneous squamous cell carcinoma or basal cell carcinoma) Any contraindication to MRI (i.e. patients with pacemakers or other metal implanted medical devices) Past medical history of interstitial lung disease, drug-induced interstitial lung disease, radiation pneumonitis which required steroid treatment, or any evidence of clinically active interstitial lung disease History of allergic reactions attributed to compounds of similar chemical or biologic composition to osimertinib (AZD9291) or bevacizumab Urine protein should be screened by urine analysis; if protein is 2+ or higher, 24-hour urine protein should be obtained; patients with 24-hour urine protein >= 1000 mg are excluded Serious or non-healing wound, ulcer or bone fracture History of abdominal fistula, gastrointestinal perforation or intra-abdominal abscess within 6 months prior to day 1 Invasive procedures defined as follows: Major surgical procedure, open biopsy or significant traumatic injury within 28 days prior to day 1 therapy Anticipation of need for major surgical procedures during the course of the study Core biopsy within 7 days prior to day 1 (D1) therapy Significant vascular disease (e.g., aortic aneurysm, requiring surgical repair or recent peripheral arterial thrombosis) within 6 months prior to day 1 Patients with clinically significant cardiovascular disease are excluded Inadequately controlled hypertension (HTN) (systolic blood pressure [SBP] > 160 mmHg and/or diastolic blood pressure [DBP] > 90 mmHg despite antihypertensive medication) History of cerebrovascular accident (CVA) within 6 months (see additional requirement for adjuvant protocols) Myocardial infarction or unstable angina within 6 months (see additional requirement for adjuvant protocols) New York Heart Association grade II or greater congestive heart failure Serious and inadequately controlled cardiac arrhythmia Significant vascular disease (e.g. aortic aneurysm, history of aortic dissection) Clinically significant peripheral vascular disease Any of the following cardiac criteria: Mean resting corrected QT interval (Fridericia's correction formula [QTcF]) > 470 ms obtained from 3 electrocardiograms (ECGs), using the screening clinic ECG machine derived corrected QT (QTc) value Any clinically important abnormalities in rhythm, conduction or morphology of resting ECG (e.g., complete left bundle branch block, third degree heart block, second degree heart block) Any factors that increase the risk of QTc prolongation or risk of arrhythmic events such as heart failure, hypokalemia, congenital long QT syndrome, family history of long QT syndrome or unexplained sudden death under 40 years of age in first degree relatives or any concomitant medication known to prolong the QT interval Evidence of bleeding diathesis or coagulopathy (including clinically significant hemoptysis) Refractory nausea and vomiting, chronic gastrointestinal diseases, inability to swallow the formulated product or previous significant bowel resection that would preclude adequate absorption of osimertinib (AZD9291) Patients with known hypersensitivity to Chinese hamster ovary cell products or other recombinant human antibodies Patients currently receiving (or unable to stop use prior to receiving the first dose of study treatment) medications or herbal supplements known to be potent inducers of CYP3A4 (at least 3 weeks prior); all patients must try to avoid concomitant use of any medications, herbal supplements and/or ingestion of foods with known inducer effects on CYP3A4 Any evidence of severe or uncontrolled systemic diseases, including, but not limited to, uncontrolled hypertension, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations which in the investigator's opinion makes it undesirable for the patient to participate in the trial or which would jeopardize compliance with the protocol, or active infection including hepatitis B, hepatitis C and human immunodeficiency virus (HIV); screening for chronic conditions is not required History of hypersensitivity active or inactive excipients of osimertinib (AZD9291) or drugs with a similar chemical structure or class to osimertinib (AZD9291) Absolute neutrophil count < 1.5 x 10^9/L Platelet count < 100 x 10^9/L Hemoglobin < 90 g/L Alanine aminotransferase > 2.5 times upper limit of normal (ULN) if no demonstrable liver metastases or > 5 times ULN in the presence of liver metastases; aspartate aminotransferase > 2.5 times ULN if no demonstrable liver metastases or > 5 times ULN in the presence of liver metastases Total bilirubin > 1.5 times ULN if no liver metastases or > 3 times ULN in the presence of documented Gilbert's syndrome (unconjugated hyperbilirubinemia) or liver metastases Serum creatinine > 1.5 times ULN concurrent with creatinine clearance < 50 mL/min (measured or calculated by Cockcroft and Gault equation)-confirmation of creatinine clearance is only required when creatinine is > 1.5 times ULN Judgment by the investigator that the patient should not participate in the study if the patient is unlikely to comply with study procedures, restrictions and requirements

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Arm I (osimertinib, bevacizumab)<br>Patients receive osimertinib PO QD on days 1-21 and bevacizumab IV over 30-90 minutes on day 1. Cycles repeat every 21 days in the absence of disease progression or unacceptable toxicity. Patients undergo CT scan, MRI, tumor biopsy and blood sample collection throughout the study. | Biological: Bevacizumab<br>* Given IV<br>* Other names: Zirabev;Procedure: Biopsy<br>* Undergo tumor biopsy<br>* Other names: Bx;Procedure: Biospecimen Collection<br>* Undergo blood sample collection<br>* Other names: Specimen Collection;Procedure: Computed Tomography<br>* Undergo CT scan<br>* Other names: tomography;Procedure: Magnetic Resonance Imaging<br>* Undergo MRI<br>* Other names: Structural MRI;Drug: Osimertinib<br>* Given PO<br>* Other names: Mereletinib;|
| Experimental: Arm II (osimertinib)<br>Patients receive osimertinib PO QD on days 1-21. Cycles repeat every 21 days in the absence of disease progression or unacceptable toxicity. Patients undergo CT scan, MRI, tumor biopsy and blood sample collection throughout the study. | Drug: Osimertinib<br>* Given PO<br>* Other names: Mereletinib;|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Progression free survival (PFS) | The two study arms will be compared for PFS with Kaplan-Meier estimates and log-rank tests. The Rothman confidence interval (CI), and the simultaneous confidence bands will be reported. In addition, the possible risk factors will be compared for survival with log-rank test. For multivariate analysis, the proportional hazards Cox model will be applied to investigate potential prognostic factors, such as age and stage of disease of the PFS data. The adjusted p-values of the hazard ratios and the adjusted 95% confidence interval will be reported. | From start of treatment to time of progression (in CNS or non-CNS disease) or death, whichever occurs first, assessed up to 2 years | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Overall survival (OS) | The two study arms will be compared for OS with Kaplan-Meier estimates and log-rank tests. The Rothman CI, and the simultaneous confidence bands will be reported. In addition, the possible risk factors will be compared for survival with log-rank test. For multivariate analysis, the proportional hazards Cox model will be applied to investigate potential prognostic factors, such as age and stage of disease of the OS data. The adjusted p-values of the hazard ratios and the adjusted 95% confidence interval will be reported. | From start of treatment to death, assessed up to 2 years | 
| OS rate | The two study arms will be compared for OS with Kaplan-Meier estimates and log-rank tests. The Rothman CI, and the simultaneous confidence bands will be reported. In addition, the possible risk factors will be compared for survival with log-rank test. For multivariate analysis, the proportional hazards Cox model will be applied to investigate potential prognostic factors, such as age and stage of disease of the OS data. The adjusted p-values of the hazard ratios and the adjusted 95% confidence interval will be reported. | At 12 months | 
| Incidence of adverse events | Assessed by Common Terminology Criteria for Adverse Events. Adverse medical events will be tabulated. National Cancer Institute toxicity grade 1 to grade 4 laboratory abnormalities will be listed. | Up to 2 years | 
| Overall response rate | Will be estimated using the 95% confidence CI based on Wilson's method. The Wilcoxon rank sum test and Fisher's exact test will be applied to study the association between the response status and the continuous and categorical variables respectively. | Up to 2 years | 
| Intracranial response rate | Will be estimated using the 95% confidence CI based on Wilson's method. The Wilcoxon rank sum test and Fisher's exact test will be applied to study the association between the response status and the continuous and categorical variables respectively. | Up to 2 years | 
| Time to intracranial progression | Will be assessed by Response Assessment in Neuro-Oncology Brain Metastases. | Up to 2 years | 
| Brain metastasis response rate |  | Up to 2 years | 
| Time to central nervous system (CNS) progression |  | From start of treatment to time of progression in the CNS, assessed up to 2 years | 
| Intracranial response | Assessed by Response Assessment in Neuro-Oncology Criteria-Glioblastoma Multiforme. Will be estimated using the 95% confidence interval CI based on Wilson's method. The Wilcoxon rank sum test and Fisher's exact test will be applied to study the association between the response status and the continuous and categorical variables respectively. The generalized non-linear model and logistic regression will be applied for multivariable data analysis. The adjusted p-value and 95% CI of the odds ratios will be reported. | Up to 2 years | 
| Objective response defined as a complete or partial response | Will be determined by investigator assessment using Response Evaluation Criteria in Solid Tumors (RECIST) version (v)1.1. | Up to 2 years |