Haskins E Cognitive Rehabilitation Manual: Translating Evidence-Based Recommendations into Practice. Vol 1. Reston, VA: American Congress of Rehabilitation Medicine; 2012.
Hutchinson AD, Hosking JR, Kichenadasse G, Mattiske JK, Wilson C Objective and subjective cognitive impairment following chemotherapy for cancer: a systematic review. Cancer Treat Rev. 2012 Nov;38(7):926-34. doi: 10.1016/j.ctrv.2012.05.002. Epub 2012 Jun 2.
O'Farrell E, MacKenzie J, Collins B Clearing the air: a review of our current understanding of "chemo fog". Curr Oncol Rep. 2013 Jun;15(3):260-9. doi: 10.1007/s11912-013-0307-7.
Reid-Arndt SA, Hsieh C, Perry MC Neuropsychological functioning and quality of life during the first year after completing chemotherapy for breast cancer. Psychooncology. 2010 May;19(5):535-44. doi: 10.1002/pon.1581.
Reid-Arndt SA, Yee A, Perry MC, Hsieh C Cognitive and psychological factors associated with early posttreatment functional outcomes in breast cancer survivors. J Psychosoc Oncol. 2009;27(4):415-34. doi: 10.1080/07347330903183117.
Interventional studies are often prospective and are specifically tailored to evaluate direct impacts of treatment or preventive measures on disease.
Observational studies are often retrospective and are used to assess potential causation in exposure-outcome relationships and therefore influence preventive methods.
Expanded access is a means by which manufacturers make investigational new drugs available, under certain circumstances, to treat a patient(s) with a serious disease or condition who cannot participate in a controlled clinical trial.
Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.
Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.
