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. 2023 Jan 3;2023(1):CD011881. doi: 10.1002/14651858.CD011881.pub2

Petrovsky 2020.

Methods RCT
Participants Inclusion criteria:
  • participants aged > 60 years with existing physician diagnosis of Alzheimer's disease‐related dementias or self‐reported memory impairment and a score of ≥ 0.5 on Clinical Dementia Rating Scale

  • presence of sleep problems determined first during telephone screening using Neuropsychiatric Inventory sleep disorders item, then using proxy‐rated Sleep Disorders Inventory

  • stable dose of psychotropic medications, sedatives/hypnotics, antidementia medication, or opioids in the past 90 days

  • tolerates and agrees to wear wrist actigraph

  • responsive to their environment (e.g. able to understand short commands)

  • sufficient English language skills to complete questionnaires


Exclusion criteria:
  • planned transition to another residential or institutional care setting in < 3 months to decrease attrition rates

  • hearing impairment (defined as inability to hear a normal speaking voice at a distance of (quote) "1–1/2 feet") to exclude those who cannot hear the music intervention

  • presence of extrapyramidal symptoms affecting non‐dominant hand which may include people with the following diagnoses: schizophrenia, bipolar disorder, Huntington's disease, Parkinson's disease, Lewy Body dementia due to rapid eye movement sleep disorders affecting actigraphy measurement of sleep disruption

  • currently enrolled in an interventional clinical trial for Alzheimer's disease‐related dementias aimed to improve sleep to avoid confounding the efficacy results

  • acute sleep disruption within 2 weeks of screening as it may indicate sleep disorders not related to Alzheimer's disease‐related dementias or delirium

  • end‐stage disease (i.e. cancer, bed‐bound) to minimise factors affecting actigraphy measurement

Interventions Listening to tailored calming music at bedtime for 30 minutes every night for 4 weeks (28 sessions total), provided by a carer
Outcomes Feasibility and acceptability study, sleep latency, wake after sleep onset, total sleep duration, sleep diary, Neuropsychiatric Inventory sleep item, PROMIS sleep‐related impairment version SF 8a, sleep disorder inventory
Notes Results will not be published until second half of 2022.

RCT: randomised controlled trial.