Kimhy D, Lauriola V, Bartels MN, Armstrong HF, Vakhrusheva J, Ballon JS, Sloan RP Aerobic exercise for cognitive deficits in schizophrenia - The impact of frequency, duration, and fidelity with target training intensity. Schizophr Res. 2016 Apr;172(1-3):213-5. doi: 10.1016/j.schres.2016.01.055. Epub 2016 Feb 3. No abstract available.
Ospina LH, Wall M, Jarskog LF, Ballon JS, McEvoy J, Bartels MN, Buchsbaum R, Sloan RP, Stroup TS, Kimhy D Improving Cognition via Exercise (ICE): Study Protocol for a Multi-Site, Parallel-Group, Single-Blind, Randomized Clinical Trial Examining the Efficacy of Aerobic Exercise to Improve Neurocognition, Daily Functioning, and Biomarkers of Cognitive Change in Individuals with Schizophrenia. J Psychiatr Brain Sci. 2019;4:e190020. doi: 10.20900/jpbs.20190020. Epub 2019 Dec 30.
Vakhrusheva J, Marino B, Stroup TS, Kimhy D Aerobic Exercise in People with Schizophrenia: Neural and Neurocognitive Benefits. Curr Behav Neurosci Rep. 2016 Jun;3(2):165-175. doi: 10.1007/s40473-016-0077-2. Epub 2016 Apr 4.
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.
