Known or suspected allergy or hypersensitivity to any of the study drugs, study drug classes, or excipients of the formulations given during the course of this trial Known or suspected allergy or hypersensitivity to any of the study drugs, study drug classes, or excipients of the formulations given during the course of this trial Known or suspected allergy or hypersensitivity to any of the study drugs, study drug classes, or excipients of the formulations given during the course of this trial Known or suspected allergy or hypersensitivity to any of the study drugs, study drug classes, or excipients of the formulations given during the course of this trial FOR ALL PHASES (Ib AND II): Known hypersensitivity to any of the study drugs, study drug classes, or excipients in the formulation Known or suspected allergy or hypersensitivity to any of the study drugs, study drug classes, or excipients of the formulations given during the course of this trial Known or suspected allergy or hypersensitivity to any of the study drugs, study drug classes, or excipients of the formulations given during the course of this trial Known or suspected allergy or hypersensitivity to any of the study drugs, study drug classes, or excipients of the formulations given during the course of this trial Known hypersensitivity to any of the test drugs, test drug classes, or excipients in the formulation Known or suspected allergy or hypersensitivity to regorafenib, or excipients of the formulations given during the course of this trial Known or suspected allergy or hypersensitivity to any of the study drugs, study drug classes, or excipients of the formulations given during the course of this trial Known hypersensitivity to any of the test drugs, test drug classes, or excipients in the formulation Known or suspected allergy or hypersensitivity to any of the study drug classes Known or suspected allergy or hypersensitivity to any of the study drugs, study drug classes, or excipients of the formulations given during the course of this trial Known hypersensitivity to study drug, study drug classes or excipients of the formulation. Known or suspected allergy or hypersensitivity to any of the study drugs, study drug classes, or excipients of the formulations given during the course of this trial. Known or suspected allergy or hypersensitivity to any of the study drugs, study drug classes, or excipients of the formulations given during the course of this trial Known hypersensitivity to any of the study drugs, study drug classes, or excipients in the formulation Known or suspected allergy or hypersensitivity to any of the study drugs, study drug classes, or excipients of the formulations given during the course of this trial Known or suspected allergy or hypersensitivity to any of the study drugs, study drug classes, or excipients of the formulations given during the course of this trial Known or suspected allergy or hypersensitivity to any of the study drugs, study drug classes, or excipients of the formulations given during the course of this trial Known or suspected allergy or hypersensitivity to any of the study drugs, study drug classes, or excipients of the formulations given during the course of this trial Known hypersensitivity to any of the study drugs, study drug classes, or excipients in the formulation Known or suspected allergy or hypersensitivity to any of the study drugs, study drug classes, or excipients of the formulations given during the course of this trial. Known or suspected grade allergy or hypersensitivity to any of the study drugs, study drug classes, or excipients of the formulations given during the course of this trial Known or suspected grade allergy or hypersensitivity to any of the study drugs, study drug classes, or excipients of the formulations given during the course of this trial Known or suspected allergy or hypersensitivity to any of the study drugs, study drug classes, or excipients of the formulations given during the course of this trial Known or suspected allergy or hypersensitivity to any of the study drugs, study drug classes, or excipients in the formulation of the study drugs