Participants will be randomised (allocated by chance) to either a test formulation or one of the two marketed formulations of bevacizumab. Drugs will be administered intravenously once only. The study will compare the safety, tolerability, pharmacokinetics (PK) (the levels of drug in the blood), pharmacodynamics (PD) (what the drug does to the body) and immunogenicity (body's immune response) of the 3 drugs. In order to measure this, blood samples will be collected at various points after treatment has been given.