Maintenance therapy isn’t new, but its usage is growing. Given this fact, it would be beneficial to know the answers to the following questions:
- Does longer-term use of drugs really prolong the lives of cancer patients?
- Will longer-term use of drugs subject cancer patients to more side effects?
- Will tumors become resistant to the drugs over time?
- Do greedy drug companies simply want more people using their drugs for increased periods of time?

References
Pollack, A. (2009, July 20). Considering longer chemotherapy. The New York Times, p. D1.