Alzheimer's disease and related dementias lead to marked declines in daily functioning, independence, and quality of life. One of the earliest cognitive changes in these conditions is impairment in prospective memory, or the ability to remember future intentions such as taking medications at a given time. Prior intervention studies that targeted prospective memory used mnemonic strategies or cognitive training, but these approaches resulted in modest gains in clinical populations. By contrast, a Stage I pilot trial indicated that smartphone-based memory aids (reminder apps) can be accepted and used by persons with mild cognitive impairment and mild dementia to improve both subjective and objective prospective memory performance. The investigators will now test for efficacy, durability, and generalizability of benefits across diverse samples in a Stage II randomized controlled trial. Some 200 participants with mild cognitive impairment or mild dementia will be recruited, half of whom will be from digitally-disadvantaged backgrounds (low socioeconomic status, rural, or historically underrepresented groups). Participants will complete baseline assessments and then be randomly assigned to a smartphone reminder app intervention or an active control condition that uses a paper- based memory support system. Across a 4-week intervention period, participants will complete patient-selected and experimenter-assigned prospective memory assessments and receive booster training sessions to promote self-efficacy with the intervention/control system. Durability of effects will be assessed at 3-month and 6-month follow-up sessions. As a secondary aim, study partners will be simultaneously enrolled to collect informant ratings, track how much study partners assist the participants, and determine whether improving prospective memory in patients improves quality of life in study partners (e.g., by reducing the double to-do list burden of remembering for themselves and for care recipients). As a third aim, the investigators will identify barriers and facilitators to smartphone interventions in digitally-disadvantaged individuals who have historically been underrepresented in technology and dementia research.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
SUPPORTIVE_CARE
Masking
SINGLE
Enrollment
200
Digital calendar apps allow one to digitally "off-load" intentions either by typing them or by speaking them (speech-to-text voice-dictation capabilities). In addition, they deliver automated reminders to perform intended tasks, either at a single time (e.g., Monday at 9 am) or at recurring times (e.g., every night at 8 pm).
The Memory Support System is an established paper-based solution for prospective memory functioning. There is considerable evidence in the literature for its utility in mild cognitive impairment (MCI) and it has face validity to patients as supporting memory.
UT Health Austin Comprehensive Memory Center
Austin, Texas, United States
RECRUITINGBaylor Scott & White Healthcare
Temple, Texas, United States
NOT_YET_RECRUITINGBaylor University
Waco, Texas, United States
RECRUITINGObjective Prospective Memory Performance
Participants will need to remember to call the study phone number at both 1) regular times each week (set at baseline for the entire study duration), and 2) irregular times each week (experimenter-assigned times that change).
Time frame: Measured for 6 months
Patient-Centered/Patient-Selected Prospective Memory Performance
Based on the goal attainment scaling framework; via a structured interview at baseline, the participant and study partner will identify 5-10 activities from the participant's daily routine that require frequent use of prospective memory. At follow-up sessions, participants rate the degree to which each of these personal activities improved or worsened.
Time frame: Measured for 6 months
Caregiving-Related Quality of Life
Co-participants will complete the Direct Impact of Care (Scales Measuring the Impact of Dementia on Carers - Direct Impact) scale. This scale has 18 items to which the co-participant respond Agree or Disagree, with Agree responses indicating a greater impact of the care they provide on their own lives.
Time frame: Measured for 6 months
Caregiving Cognitive Burden
The Cognitive Burden of Caregiving Scale (CBCS) is a 14 item scale assessing cognitive burden associated with caregiving, strategy use independence and assistance, and time preoccupation. Items are responded to on a 1-7 likert scale (max score of 98) with higher scores indicating greater cognitive burden.
Time frame: Measured for 6 months
Calendar Use
Total number of entries for the digital or paper calendar
Time frame: Measured for 6 months
Montreal Cognitive Assessment
Participants will complete the Montreal Cognitive Assessment (MoCA), a rapid screening assessment to help detect mild cognitive impairment in numerous cognitive domains (attention and concentration, executive functions, memory, language, visuoconstructional skills, conceptual thinking, calculations, and orientation). Scores range from 0 to 30, with lower scores indicating worse outcomes.
Time frame: Measured during screening and at 6 months
Smartphone Use - Screen Time
Participants in the digital condition will provide their total minutes of screen time from their phone's settings.
Time frame: Measured for 6 months
Smartphone Use - Notifications
Participants in the digital condition will provide the total number of notifications they received, found in their phone's settings.
Time frame: Measured for 6 months
Smartphone Use - Pickups
Participants in the digital condition will provide the total number of pickups/unlocks of their phone, found in their phone's settings.
Time frame: Measured for 6 months
Smartphone Use - Apps
Participants in the digital condition will provide their most used apps, found in their phone's settings.
Time frame: Measured for 6 months
Smartphone Use - Google Calendar
Participants in the digital condition will provide the total amount of time they spent using Google Calendar, found in their phone's settings.
Time frame: Measured for 6 months
Prospective and Retrospective Memory Questionnaire - Subjective Memory Functioning
The 21-item Prospective and Retrospective Memory Questionnaire uses a 5-point scale ran to assess the frequency of retrospective and prospective memory failures, such as forgetting to take a pill.
Time frame: Measured for 6 months
Modified Functional Activities Questionnaire
Co-Participants will complete a modified instrumental activities of daily living scale to assess participants' ability to independently complete activities of daily living, such as preparing meals or making purchases with analog and digital approaches. The 6-point scale ranges from Normal to Dependent and includes Not Applicable/Unknown response options, with greater scores indicating a greater need of assistance.
Time frame: Measured for 6 months
Neuro-QoL - Depression
Participants will complete the Quality of Life in Neurological Disorders (Neuro-QOL) subscale for depression. The subscale has 8 items that are rated from Never to Always. The subscale total score range from 8 (minimum) to 40 (maximum), with lower scores indicating better outcomes.
Time frame: Measured for 6 months
Insomnia Severity Index
The 7-item Insomnia Severity Index asks participants to rate the severity of both nighttime and daytime components of their insomnia, with higher scores indicating worse outcomes.
Time frame: Measured for 6 months
Everyday Cognition
The Everyday Cognition (ECOG-12) questionnaire uses a 5-point scale to assess the participant's ability to perform certain everyday tasks, such as remembering the current date, rated from "I perform the task much worse than 10 years ago" to "There has been no change in my ability compared to 10 years ago."
Time frame: Measured for 6 months
General Life Satisfaction
The National Institutes of Health (NIH) Toolbox General Life Satisfaction questionnaire uses a 7-point scale to assess participants' sense of fulfillment with their lives, with lower scores indicating greater life satisfaction.
Time frame: Measured for 6 months
Coping Self-Efficacy
The Coping Self-Efficacy questionnaire uses an 11-point scale - ranging from 0, cannot do at all, to 10, certain can do - assessing the participant's confidence in solving personal or emotional problems.
Time frame: Measured for 6 months
Follow-Up Qualitative Interview
Study personnel will conduct semi-structured qualitative interviews with dyads to determine the most helpful, challenging, interesting, and important themes from their experience using their memory strategy.
Time frame: Measured at 6 months
Training/Booster Duration
Number of minutes to complete smartphone/memory notebook training
Time frame: Measured for 1 month (throughout intervention period)
Self Reported Memory Strategy Use
Self report scale of frequency of using different memory strategies ranging from Never to All the Time, with greater scores indicating more frequent calendar and journal use.
Time frame: Measured for 6 months
Self Reported Current Treatments
Self report usage of pharmacological, cognitive, and group therapies.
Time frame: Measured for 6 months
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