Study of the Effect NT-I7 on CD4 Counts in Patients With High Grade Gliomas

Inclusion Criteria: * Patients must have histologically confirmed high grade glioma by pathology (World Health Organization \[WHO\] grade III and IV) * Patients' post-operative treatment must have included at least 80% of standard radiation and concomitant temozolomide; patients may not have received any other prior chemotherapy, immunotherapy or therapy with biologic agent (including immunotoxins, immunoconjugates, antisense, peptide receptor antagonists, interferons, interleukins, tumor infiltrating lymphocytes \[TIL\], lymphokine-activated killer \[LAK\] or gene therapy), or hormonal therapy for their brain tumor; prior Gliadel wafers are allowed; glucocorticoid therapy is allowed * Patients must have CD4 =\< 300 cells/mm\^3 in the last week (7 days) of standard radiation + temozolomide treatment (58-60 Gy radiation with temozolomide 75 mg/m2 daily during radiation) * Absolute neutrophil count \>= 1,000/mcL * Platelets \>= 50,000/mcL (need to confirm before administering study drug) * Hemoglobin \>= 9 g/dL * Total bilirubin =\< institutional upper limit of normal * Aspartate aminotransferase (AST) (serum glutamic oxaloacetic transaminase \[SGOT\])/alanine aminotransferase (ALT) (serum glutamate pyruvate transaminase \[SGPT\]) =\< 2.5 x institutional upper limit of normal * Creatinine =\< institutional upper limit of normal OR creatinine clearance \>= 60 ml/min/1.73 m\^2 for patients with creatinine levels above institutional normal * Activated partial thromboplastin time (APTT) or partial thromboplastin time (PTT) =\< 1.5 x institutional upper limit of normal * Patients must have a Karnofsky performance status (KPS) \>= 60% (i.e. the patient must be able to care for himself/herself with occasional help from others) * Patients must be able to provide written informed consent * Women of childbearing potential must have a negative serum pregnancy test prior to study entry; women of childbearing potential and men must agree to use two birth control methods (either two barrier methods or a barrier method plus a hormonal method) or abstinence prior to study entry and for the duration of study participation (through at least 90 days after the last study injection); should a woman become pregnant or suspect she is pregnant while participating in this study, she should inform her treating physician immediately * Dexamethasone dose must be provided for treatment group assignment: * Group A: patients not on dexamethasone or on a dose =\< 0.75 mg daily (or equivalent of an alternative corticosteroid) * Group B: patients who require dexamethasone \>= 4 mg daily (or equivalent of an alternative corticosteroid) \*\* Patients must have been on the group assignment dose of corticosteroids for at least 5 days prior to the dose of NT-I7; corticosteroid dose changes prior to the start of treatment are allowed as long as they do not alter patient's group assignment Exclusion Criteria * Patients receiving any other investigational agents are ineligible * Patients with known hypersensitivity to NT-I7 or any component used in the vehicle/formulation are ineligible * Patients with uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements, are ineligible * Pregnant women are excluded from this study; breastfeeding should be discontinued if the mother is treated with NT-I7 * Patients with human immunodeficiency virus (HIV) are excluded * Patients with a known or screening-period-determined corrected QT (QTc) interval \> 450 msec and patients who require a therapy with a drug known to prolong the QT/QTc interval, are ineligible * Patients with a history of or who currently have evidence of autoimmune disease (other than autoimmune thyroid disease managed with thyroid hormone replacement or vitiligo) including: myasthenia gravis, Guillain Barre syndrome, systemic lupus erythematosus, multiple sclerosis, scleroderma, ulcerative colitis, Crohn's disease, autoimmune hepatitis, Wegener's etc., are ineligible