Inclusion Criteria:

          -  Have histologic or cytological proof of advanced cancer that has progressed and for
             which there is no further standard anticancer therapy available in the opinion of the
             investigator.

          -  Patients must have measurable disease as per RECIST v1.1

          -  Are 18 years of age or older.

          -  Have clinically acceptable laboratory screening results within certain limits

          -  Have an Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1

          -  Able to swallow oral medications.

          -  Have a life expectancy greater than 3 months.

          -  Women and men of child producing potential must agree to use highly effective means of
             contraception during study participation, and for at least 30 days after the last
             administration of study medication.

          -  Negative serum pregnancy test with 72 hours prior to start of study drug

          -  Have the ability to understand the requirements of the study, provide written informed
             consent which includes authorization for release of protected health information,
             abide by the study restrictions, and agree to return for the required assessments.

        Exclusion Criteria:

          -  Women who are pregnant or nursing.

          -  Have received radiotherapy, chemotherapy, biological therapy or investigational
             treatment less than four weeks (six weeks for nitrosourea or mitomycin C) prior to
             first dose of study medication or have not recovered from all acute toxicities from
             prior treatments.

          -  Patients who have received growth factors within 14 days prior to initiation of dosing
             of CFI-400945 fumarate.

          -  Have active, acute, or chronic clinically significant infections.

          -  Have uncontrolled severe hypertension

          -  Have clinical symptomatic congestive heart failure defined at >= Class II of the New
             York Heart Association functional classification system or LVEF < 50% at baseline.

          -  Have active angina pectoris or recent myocardial infarction (within 6 months).

          -  Have chronic atrial fibrillation or QTc of greater than 470 msec, as calculated by
             Bazett's correction formula.

          -  Have had major surgery within 21 days of starting therapy. Placement of a venous
             access device within 21 days of starting therapy is allowed.

          -  Have additional uncontrolled serious medical or psychiatric illness.

          -  Have any medical condition that could impair the administration of oral agents
             including significant bowel resection, inflammatory bowel disease or uncontrolled
             nausea or vomiting.

          -  Known central nervous system metastasis. Patients with history of central nervous
             system metastases are eligible if they are clinically or radiographically stable for
             at least 3 months and not taking steroids or anticonvulsants.

          -  Patients being treated with full dose warfarin are excluded. Patients with history of
             deep vein thrombosis or pulmonary embolus who are being treated with therapeutic doses
             of low molecular weight heparin or prophylactic dose anticoagulants may be enrolled.

          -  Patients being treated with certain drugs not acceptable while receiving CFI-400945
             fumarate.