The second Chi-Med drug in trials, a radiosensitizer for head and neck cancer, helps make tumor cells more receptive to radiation by increasing the amount of oxygen in the cells.
Stage 2B refers to the two areas of the body where Daniel has it -- the chest and the neck -- and the symptoms he has experienced: tumor, fatigue, weight loss and night sweats.
This can be just the result of the excess pressure placed on the nerve or it can also be caused by neck or back trauma, a herniated disk in the spine, or a mass (such as a tumor or infection).