CHICAGO (EGMN) - The incidence of the oldest side effect of anticancer treatment - diarrhea - is rising in parallel with the use of targeted agents, and clinicians need to manage this proactively in order to keep patients on treatment, according to Dr. Joanna M. Brell of the Division of Cancer Prevention at the National Cancer Institute."Diarrhea occurs in about 80% of chemotherapy patients, and about 30% is grade 3/4 toxicity. It is common, it is associated with newer targeted therapies, it is additive...