Inclusion Criteria:

- Patients must have histologically confirmed malignancy that is metastatic or
unresectable and for which standard curative or palliative chemotherapy measures do
not exist or are no longer effective

- Patients must not have previously received anthracyclines

- Patients must not have received radiation to > 25% of bone marrow

- ECOG performance status =< 2

- Life expectancy of greater than 12 weeks

- Leukocytes >= 3,000/μl

- Absolute neutrophil count >= 1,500/μl

- Platelets >= 100,000/μl

- Total bilirubin within normal institutional limits

- AST(SGOT)/ALT(SGPT) =< 2.5 X institutional upper limit of normal

- Creatinine =< 1.5 mg/dl OR creatinine clearance >= 60 mL/min/1.73 m^2 for patients
with creatinine levels above institutional normal

- Patients must have LVEF > 45%

- Patients must have baseline screening for G6PD (glucose-6-phosphate dehydrogenase)
deficiency; G6PD must be no lower than the lower limit of normal prior to starting
study treatment; patients who are above the upper limit of normal may enroll in the
trial

- Patients must have measurable or evaluable disease

- The effects of Triapine® on the developing human fetus are unknown; for this reason
and because heterocyclic carboxaldehyde thiosemicarbazones as well as other
therapeutic agents used in this trial are known to be teratogenic, women of
child-bearing potential and men must agree to use adequate contraception (hormonal or
barrier method of birth control; abstinence) prior to study entry and for the
duration of study participation; should a woman become pregnant or suspect she is
pregnant while participating in this study, she should inform her treating physician
immediately

- Ability to understand and the willingness to sign a written informed consent document

Exclusion Criteria:

- Patients who have had chemotherapy or radiotherapy within 4 weeks (6 weeks for
nitrosoureas or mitomycin C) prior to entering the study

- Patients who have not recovered from adverse events due to agents administered more
than 4 weeks earlier; patients with grade =< 1 adverse events from prior therapies
are eligible at the investigator's discretion

- Patients may not be receiving any other investigational agents

- Patients with known brain metastases should be excluded from this clinical trial
because of their poor prognosis and because they often develop progressive neurologic
dysfunction that would confound the evaluation of neurologic and other adverse events

- History of allergic reactions attributed to compounds of similar chemical or biologic
composition to Triapine® or other agents used in study

- 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

- Pregnant women are excluded from this study because Triapine® is a heterocyclic
carboxaldehyde thiosemicarbazone with the potential for teratogenic or abortifacient
effects; because there is an unknown but potential risk for adverse events in nursing
infants secondary to treatment of the mother with Triapine®, breastfeeding should be
discontinued if the mother is treated with Triapine®; these potential risks may also
apply to other agents used in this study

- Patients with immune deficiency are at increased risk of lethal infections when
treated with marrow-suppressive therapy; therefore, HIV-positive patients receiving
combination anti-retroviral therapy are excluded from the study because of possible
pharmacokinetic interactions with Triapine® or other agents administered during the
study; appropriate studies will be undertaken in patients receiving combination
anti-retroviral therapy when indicated

- Patients with known G6PD deficiency are excluded

- Patients with severe pulmonary disease requiring oxygen and patients with baseline
hypoxia (< 95% oxygen saturations) are excluded