Risks tied to antipsychotics
People with SMI face cardiovascular risks not only from unhealthy behaviors but also from the medications used to treat their psychiatric conditions. The American Diabetes Association and American Psychiatric Association in 2004 released a consensus statement on the impact of antipsychotics such as clozapine, olanzapine, and risperidone on obesity and diabetes. It included guidelines for monitoring the metabolic status of patients both at baseline and after initiating treatment, including checking body mass index, waist circumference, blood pressure, fasting glucose, and fasting lipids.
Yet, substantial evidence suggests that the medical community still has not paid enough attention to the health risks of those medications, said Alisa Busch, MD, of Harvard Medical School, Boston.
“A slew of research has shown since then that we have done a very poor job in adhering to those monitoring guidelines,” Dr. Busch said.
A fellow panelist, Marcela Horvitz-Lennon, MD, MPH, of the Rand Corp., presented results from her study showing continued common use of second-generation antipsychotics for off-label use for treatment of anxiety, posttraumatic stress disorder, and dementia in people of all ages.
Consistent with previous research, Dr. Horvitz-Lennon and her colleagues found that off-label use of second-generation antipsychotics was common during 2008-2012 in the four states they studied. They looked at available data from fee-for-service Medicare, Medicaid, and dually (Medicaid-Medicare) covered adult beneficiaries in California, Georgia, Mississippi, and Oklahoma.
Throughout the study period, California had the highest rate of fee-for-service beneficiaries whose SGA use was consistently off label (44.6%). Georgia had the lowest rate of always off-label use (35.1%), while Mississippi (42%) and Oklahoma (36.3%) fell somewhere in the middle.
When second-generation antipsychotics have approved uses such as schizophrenia, the known profile of a medication gives some assurance that the benefit of the medications will exceed the risk for that patient, she said. “When the medication is used off label, the implication is that there is no good evidence that the benefits are there,” Dr. Horvitz-Lennon said. “Hence, the potential for harm is most likely exceeding that likely or unlikely benefit.”
Dr. Daumit, Dr. Breslau, and Dr. Horvitz-Lennon said they had no financial disclosures.