Patients must have recovered to at least a grade =< 1 toxicity eligibility levels due to adverse events (AEs) and/or toxicity of prior chemotherapy or biologic therapy; they must not have had chemotherapy or biologic therapy within 4 weeks (6 weeks for nitrosoureas and mitomycin C, or 2 months for UCN-01), or therapy with tyrosine kinase inhibitors within 5 times the half-life of the inhibitors prior to entering the study; patients must be >= 2 weeks since any prior administration of study drug in an exploratory investigational new drug (IND)/phase 0 study; patients must be >= 1 month since completion of any prior radiation (>= 2 weeks for palliative radiation therapy); however, patients receiving bisphosphonates for any cancer or undergoing androgen deprivation therapy for prostate cancer are eligible for this therapy* Prior therapy with topoisomerase I inhibitors is allowedXx_NEWLINE_xXPatients must have completed any chemotherapy, radiation therapy, or biologic therapy >= 4 weeks (or 5 half-lives, whichever is shorter) prior to entering the study (6 weeks for nitrosoureas or mitomycin C); patients must be >= 2 weeks since any prior administration of a study drug in a phase 0 or equivalent study and >= 1 week from palliative radiation therapy; patients must have recovered to eligibility levels from prior toxicity or adverse events; treatment with bisphosphonates is permittedXx_NEWLINE_xXPatients must have completed any chemotherapy, radiation therapy, biologic therapy, or major surgery >= 4 weeks prior to enrollment (6 weeks for nitrosoureas or mitomycin C); patients must be >= 2 weeks since any prior administration of a study drug in a phase 0 or equivalent study, at the discretion of the principal investigator; patients must have recovered to eligibility levels from prior toxicity or adverse events; patients with bone metastases or hypercalcemia on intravenous (IV) bisphosphonate treatment prior to study entry may continue this treatmentXx_NEWLINE_xXAny prior therapy must have been completed >= 4 weeks prior to enrollment on protocol and the participant must have recovered to eligibility levels from prior toxicity; patients should be at least 6 weeks out from nitrosoureas and mitomycin C; prior radiation should have been completed >= 4 weeks prior to study enrollment and all associated toxicities resolved to eligibility levels; patients who have had prior monoclonal antibody therapy must have completed that therapy at least 3 half-lives of the antibody or 6 weeks ago; patients who have received more than a cumulative dose of 350 mg/m^2 of doxorubicin may be enrolled at the discretion of the coordinating center principal investigator (PI) after consultation with a cardiologist and if screening echocardiogram is normalXx_NEWLINE_xXPatients must have completed any chemotherapy, radiation therapy, surgery, or biologic therapy >= 3 weeks (or >= 5 half-lives, whichever is shorter) prior to entering the study; patients must be >= 2 weeks since any prior administration of a study drug in an exploratory investigational new drug (IND)/phase 0 study or >= 1 week from palliative radiation therapy; patients must have recovered to eligibility levels from prior toxicity or adverse eventsXx_NEWLINE_xXTREATMENT: Any prior therapy, radiotherapy, or major surgery must have been completed >= 3 weeks (> 6 weeks for nitrosoureas or mitomycin C) or 5 half-lives of the agent (whichever is shorter) prior to enrollment on protocol, and the participant must have recovered to eligibility levels from prior toxicity; radiofrequency ablation (RFA) of localized lesions should have been performed >= 2 weeks prior to treatmentXx_NEWLINE_xXPatients must have completed radiation therapy or major surgery >= 3 weeks, or biologic therapy or chemotherapy >= 5 half-lives or 3 weeks, whichever is shorter (6 weeks for nitrosoureas and mitomycin C) prior to entering the study; patients must be >= 2 weeks since any prior administration of a study drug in a phase 0 or equivalent study and be >= 1 week from palliative radiation therapy; patients must have recovered to eligibility levels from prior toxicity or adverse events; treatment with bisphosphonates is permittedXx_NEWLINE_xXPatients must have completed any chemotherapy, radiation therapy, or biologic therapy >= 3 weeks prior to entering the study; patients must be >= 2 weeks since any prior administration of a study drug in a phase 0 or equivalent study; patients must have recovered to eligibility levels from prior toxicity or adverse events; treatment with bisphosphonates is permittedXx_NEWLINE_xXPatients must have recovered from clinically significant toxicity of prior therapy to grade =< 1 or pre-treatment baseline; the following intervals from previous treatments are required prior to day 1 of study therapy:* 12 weeks from the completion of radiation for recurrent GBM unless there is surgical diagnosis of recurrence or a new lesion that was not previously radiated* 6 weeks from a nitrosourea chemotherapy* 3 weeks from a non-nitrosourea chemotherapy* 4 weeks from an investigational agent (not Food and Drug Administration [FDA] approved) (or 5 half lives, whichever is shorter)* 2 weeks from administration of a non-cytotoxic, FDA-approved agent (e.g., erlotinib, hydroxychloroquine, etc.) (or 5 half lives, whichever is shorter)Xx_NEWLINE_xXChemotherapy =< 21 days prior to first administration of study treatment and/or monoclonal antibody =< 6 weeks prior to first administration of study treatmentXx_NEWLINE_xXPatients must have completed any chemotherapy, radiation therapy, or biologic therapy >= 4 weeks or 5 half-lives (whichever is shorter) (6 weeks for nitrosoureas or mitomycin C) prior to entering the study; patients must be >= 2 weeks since any prior administration of a study drug in a phase 0 or equivalent study and be >= 2 weeks since any prior palliative radiation or cyberknife therapy; patients must have recovered to grade 1 from prior toxicity or adverse events; patients with bone metastases or hypercalcemia on intravenous bisphosphonate treatment prior to study entry may continue this treatmentXx_NEWLINE_xXAny prior therapy must have been completed at least 4 weeks prior to entry into the studyXx_NEWLINE_xXPatients must have completed any chemotherapy, radiation therapy, surgery, or biologic therapy >= 3 weeks (or >= 5 half-lives, whichever is shorter) prior to entering the study; patients must be >= 2 weeks since any prior administration of a study drug in an exploratory investigational new drug (IND)/phase 0 study and >= 1 week since any palliative radiation therapy; patients must have recovered to eligibility levels from prior toxicity or adverse eventsXx_NEWLINE_xXPatients must have recovered to grade 1 or baseline from adverse events (AEs) and/or toxicity of prior chemotherapy or biologic therapy; they must not have had chemotherapy, biologic therapy, or definitive radiotherapy within 4 weeks (6 weeks for nitrosoureas and mitomycin C) or 5 half-lives, whichever is shorter, prior to entering the study; palliative-intent radiotherapy (30 Gy or less) must be completed at least 2 weeks prior to start of treatment, and may not be to a lesion that is included as measurable disease; patients must be >= 2 weeks since any investigational agent administered as part of a phase 0 study (where a sub-therapeutic dose of drug is administered) at the principal investigator's (PI�s) discretion, and should have recovered to grade 1 or baseline from any toxicitiesXx_NEWLINE_xXAny prior therapy must have been completed >= 4 weeks or, if known, >= 5 half-lives of the prior agent (whichever is shorter) prior to enrollment on protocol (minimum of 1 week between prior therapy and study enrollment), and the participant must have recovered to eligibility levels from prior toxicity; patients should be at least 6 weeks out from nitrosoureas and mitomycin C; prior definitive radiation should have been completed >= 4 weeks or palliative radiation should have been completed >= 2 weeks prior to study enrollment and all associated toxicities resolved to eligibility levels (patients on study may be eligible for palliative radiotherapy to non-targeted lesions after 2 cycles of therapy at the principal investigator [PI]�s discretion); patients who have had prior monoclonal antibody therapy must have completed that therapy >= 6 weeks (or 3 half-lives of the antibody, whichever is shorter) prior to enrollment on protocol (minimum of 1 week between prior therapy and study enrollment); patients who have received more than a cumulative dose of 350 mg/m^2 of doxorubicin may be enrolled at the discretion of the coordinating center PI, with a screening echocardiogramXx_NEWLINE_xX