ACTRN12621000479808: An interventional study to safety, tolerability (how well a substance is tolerated by patients), and Pharmacokinetics (PK, the measure of how the human body processes a substance) of different dosages of Auceliciclib when given to patients with advanced solid tumours as either the only treatment, or in patients with a specific type of cancer, Glioblastoma multiforme (GBM), when given together with a standard of care treatment, Temozolomide (TMZ).