Reducing CNS-Active Medications to Prevent Falls and Injuries in Older Adults

Background: Central nervous system (CNS) active medications have been consistently linked to falls in older people. However, few randomized trials have evaluated whether CNS-active medication reduction reduces falls and fall-related injuries. The objective of the Reducing CNS-active Medications to Prevent Falls and Injuries in Older Adults (STOP-FALLS) trial is to test the effectiveness of a health-system-embedded deprescribing intervention focused on CNS-active medications on the incidence of medically treated falls among community-dwelling older adults.

This is a pragmatic, cluster-randomized, parallel-group, controlled clinical trial within Kaiser Permanente Washington to test the effectiveness of a 12-month deprescribing intervention consisting of: 1) an educational brochure and self-care handouts mailed to older adults prescribed one or more CNS-active medications (aged 60+: opioids, benzodiazepines and Z-drugs; aged 65+: skeletal muscle relaxants, tricyclic antidepressants, and antihistamines) and 2) decision support for their primary health care providers. Outcomes are examined over 18-26 months post-intervention. The primary outcome is first incident (post-baseline) medically treated fall as determined from health plan data. Sample size calculations ensured at least 80% power to detect a 20% reduction in the rate of medically treated falls for participants receiving care within the intervention (n=9) versus usual care clinics (n=9) assuming 18 months of follow-up. Secondary outcomes include medication discontinuation or dose reduction of any target medications. Safety outcomes include serious adverse drug withdrawal events, unintentional overdose, and death. The study team will also examine medication signetur fields for attempts to decrease medications. The study team will report factors affecting implementation of the intervention.