Federal regulations governing human subjects research call for additional p
rotections for the "mentally disabled." However, there is currently no cons
ensus definition of mental disability or guidelines for how these research
subjects should be protected. This ambiguity complicates the work of instit
utional review boards (IRBs) charged with the review and approval of protoc
ols involving psychiatric medication discontinuation and symptom provocatio
n. It is particularly important for these studies to be reviewed within the
larger context of the research program in which they are conducted. The au
thor proposes a process for IRB review of these studies, which includes the
implementation of additional safeguards for subjects determined by the IRB
to be vulnerable. Recommendations also are made for training psychiatric c
linical investigators in issues related to research bioethics.