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About
This phase II trial is studying how well giving erlotinib together with sorafenib works in treating patients with progressive or recurrent glioblastoma multiforme. Erlotinib and sorafenib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth and by blocking blood flow to the tumor. Giving erlotinib together with sorafenib may kill more tumor cells.
Full description
PRIMARY OBJECTIVES:
I. The primary objective of this trial is to estimate the overall survival rate associated with this combined regimen in treating adult patients with recurrent glioblastoma multiforme.
SECONDARY OBJECTIVES:
I. To assess and estimate the toxicities. II. Tumor response rate. III. To estimate 6-month progression free survival. IV. To describe the pharmacokinetics of this route of administration. V. For the Molecular Targeted Combinations Correlative (MTC2) Study Initiative: To determine the relationship between tumor and blood biomarkers and clinical outcome of patients treated with the combination of targeted agents.
OUTLINE: This is a multicenter, open-label, phase II study.
Patients receive oral erlotinib hydrochloride once daily and oral sorafenib tosylate twice daily on days 1-28. Treatment repeats every 4 weeks in the absence of disease progression or unacceptable toxicity.
Tumor tissue and blood samples are collected prior to beginning treatment. Samples are analyzed by immunohistochemistry, gene expression, and DNA mutation and genomic analyses of the epidermal growth factor receptor, ras-raf-ERK, and PI3K-Akt-mTOR pathways to identify markers that correlate with patient outcomes. Blood samples are also collected on day 15 of course 1 for pharmacokinetic studies. Samples are analyzed by reversed-phase isocratic high-performance liquid chromatography with electrospray ionization mass spectrometry to determine the concentration of erlotinib hydrochloride and sorafenib tosylate and its known metabolites.
After completion of study therapy, patients are followed every 2 months.
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Inclusion criteria
Exclusion criteria
Patients with serious concurrent infection or medical illness which would jeopardize the ability of the patient to receive the treatment outlined in this protocol with reasonable safety; (examples of medical illnesses are [but not limited to] the following: uncontrolled hypertension, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situation that would limit compliance with study requirements)
Patients with uncontrolled hypertension; hypertension with systolic blood pressure of > 140 mmHg or diastolic pressure > 90 mmHg; however, patients with well-controlled hypertension are eligible
Patients who are pregnant or breast-feeding (the anti-proliferative activity of this experimental drug may be harmful to the developing fetus or nursing infant)
Patients who have received more than two prior treatments
Patients who have had prior therapy with erlotinib or sorafenib or any other agent targeting EGFR
Patients receiving concurrent therapy for their tumor (with the exception of steroids)
Patients undergoing major surgery or sustaining a significant traumatic injury within 21 days prior to treatment are ineligible
Patients with a concurrent malignancy are ineligible unless they are patients with curatively treated carcinoma-in-situ or basal cell carcinoma of the skin; patients with a prior malignancy are ineligible unless they have been free of disease for >= five years
Patients must not have any evidence of bleeding diathesis or coagulopathy
Patients with PT INR > 1.5 are excluded, unless the patient is on full dose warfarin
Patients on full-dose anticoagulants (e.g., warfarin) are eligible provided that both of the following criteria are met:
Prophylactic anticoagulation (i.e. low dose warfarin) are eligible provided their coagulation parameter levels are as follows: prothrombin time (INR; International Normalized Ratio of prothrombin time) < 1.1 x institutional upper limit of normal
Patients with known abnormalities of the cornea based on history (e.g., dry eye syndrome, Sjogren's syndrome), congenital abnormality (e.g., Fuch's dystrophy), abnormal slit-lamp examination using a vital dye (e.g., fluorescein, Bengal Rose), and/or an abnormal corneal sensitivity test (Schirmer test or similar tear production test) are excluded
Patients with any condition (e.g., gastrointestinal tract disease resulting in an inability to take oral medication or a requirement for IV alimentation, prior surgical procedures affecting absorption, or active peptic ulcer disease) that impairs their ability to swallow pills are excluded
Patients cannot be receiving cytochrome P450-inducing anticonvulsants (EIAEDs; e.g., phenytoin, carbamazepine, phenobarbital, primidone, oxcarbazepine) and must not have taken them for at least 10 days
Patients may not have allergies to or a history of allergic reactions attributed to erlotinib and/or sorafenib
Eligibility of patients receiving any other medications or substances known to affect or with the potential to affect the activity or pharmacokinetics of erlotinib or sorafenib will be determined following review of their case by the Principal Investigator
HIV patients receiving combination anti-retroviral therapy will be excluded
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56 participants in 1 patient group
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Data sourced from clinicaltrials.gov
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