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Informed consent in medication-free schizophrenia research
David J Moser1, Rebecca L Reese, Susan K Schultz
1Department of Psychiatry, University of Iowa, Carver College of Medicine, Iowa City, IA 52242, USA. david-moser@uiowa.edu
The American Journal of Psychiatry
|June 3, 2005
Summary
Discontinuing antipsychotic medication for schizophrenia research did not significantly impair decisional capacity. However, a notable decline in reasoning ability was observed, necessitating further research and interventions.
Area of Science:
- Psychiatry
- Neuroscience
- Clinical Psychology
Background:
- Schizophrenia treatment often involves antipsychotic medications.
- Discontinuation of these medications for research may impact cognitive functions, including decisional capacity.
- Understanding these changes is crucial for ethical research conduct.
Purpose of the Study:
- To assess changes in decisional capacity among individuals with schizophrenia during a medication-free period for research.
- To evaluate the impact of antipsychotic discontinuation on informed consent capacity, neuropsychological performance, and psychiatric symptoms.
Main Methods:
- A study involving 10 individuals with schizophrenia.
- Assessment of decisional capacity, neuropsychological performance, and psychiatric symptoms before and after antipsychotic medication discontinuation.
- Focus on capacity for informed consent for research.
Main Results:
- Minimal changes were observed in most measures during the medication-free interval.
- A significant decline in reasoning ability was noted.
- Participants who understood study procedures at enrollment maintained this understanding throughout the study.
Conclusions:
- Decisional capacity in individuals with schizophrenia generally remains stable during medication-free research periods.
- A decline in reasoning ability is a concern requiring further investigation.
- Additional research and interventions are needed to enhance reasoning skills in this population for research participation.
Keywords:
Biomedical and Behavioral Research