Cancer patients need to be prepared for serious side effects from chemotherapy, and hospitalization is one that happens much more often in the real world than in drug trials, according to a new study. Researchers found that people with advanced lung cancer receiving chemotherapy in real-world settings were almost eight times more likely to be hospitalized during treatment than those participating in clinical trials, which are highly controlled and regulated. What's more, very few clinical trials even report how often participants are hospitalized during the research, the study authors found.