ClinicalTrials.gg
CompletedNCT03360019Updated May 17, 2023Results posted

Accurate WiFi-Based Localization of Dementia Patients For Caregiver Support:

An interventional study of Activlink insole and Activlink Phone Application in Dementia, Vascular, Alzheimer Dementia and Lewy Body Dementia With Behavioral Disturbance, sponsored by University of Florida. Completed at 2 sites in United States. Open to participants aged 21 Years to 85 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2023-05-17.

Sponsored by University of Florida · Not applicable, Interventional, and Supportive care

Phase
Not applicable
Study type
Interventional
Enrollment
13
Allocation
Non-randomized
Ages
21 Years to 85 Years
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-13

Among 65 studies in Dementia, Vascular with a site in United States — 16 open to participants now, 20 under way, none of them phase 3. Dementia, Vascular · United States.

Enrollment
43rd of 47
13 · median 100
Started
2021
with 7 others
No phase
33 of 65
7 open now
Registered
20th of 65
by date

Among the 65 studies in Dementia, Vascular with a site in United States, this one is the 43rd largest by enrollment of the 47 interventional ones that give a count, is one of 8 that started in 2021, is one of 33 with no phase, and was the 20th registered.

Dementia, Vascular

183 studies on the registry are indexed under Dementia, Vascular; 44 are open to participants now.

Browse Dementia, Vascular studies →

Open to participants now

16 of the 65 studies in Dementia, Vascular with a site in United States are open now. Recruiting first, the newest first:

11 more — sign in →

All 16 open studies →

A study can be open while its sites in United States have not opened yet or have stopped. Only those recruiting at a site in United States →

Who these studies take

Of the 36 Dementia, Vascular studies recruiting now, 26 (72%) set no upper age limit and 2 (6%) stop at 75 or younger; 4 take children under 18; 14 take healthy volunteers.

This study: 21 Years to 85 Years · all sexes · healthy volunteers too.

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02

Study summary

In this Phase II SBIR project we will enhance a wireless WiFi-based insole that was designed and successfully tested during a Phase I trial with elderly persons with dementia and their caregivers, and then investigate its efficacy in terms of caregiver activity, burden, and quality of life in Phase II. Evaluation will use semi-structured interviews and participant observation data collected from professional and family caregivers of patients with moderate or mild dementia.

Read the detailed description

The efficacy of the Activlink system offering localization information to improve caregiver will be evaluated in two studies. Study 2a will use the insole system with dementia patients residing in skilled or memory care. Data regarding caregiving activity will be collected from their paid professional care providers. Study 2b will use participant localization data collected on 80 independently dwelling mild dementia patients. In this case data will be collected from their unpaid family caregivers. Both studies will result in evaluating the efficacy of the WiFi-based insole to provide caregivers with augmented patient awareness, helping to improve their immediate quality of life by reducing their direct burden of continuous oversight of their person in care.

03

Conditions studied

  • Dementia, Vascular
  • Alzheimer Dementia
  • Lewy Body Dementia With Behavioral Disturbance
04

Who can participate

Ages eligible
21 Years to 85 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

Persons With Dementia Resides in memory care or skilled nursing

  • Moderate dementia ( of 10-18)
  • Ambulatory (without or with cane, walker or wheelchair assist)
  • A legal proxy that can provide consent

Persons With Dementia Resides in independent living setting in community.

  • Mild dementia (MMSE of 19-25)
  • Ambulatory (without or with cane, walker or wheelchair assist).
  • Has a legal proxy that can provide consent.

Care Partners

  • Speaks English
  • Be 21 years of age or over
  • Has at least three times per week direct contact with person with dementia (PWD)
  • Consents to participate in the study

Exclusion criteria

Exclusion Criteria:

  • Is not fluent in written or spoken English
  • Indicate an unwillingness to use the Activlink
  • History of Major Mental Illness for patient or caregiver
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

MMSE and MoCA

Short tests of memory and thinking, each scored out of 30. Lower scores suggest more difficulty; criteria give a range, either to include people with memory problems or to leave them out.

05

Study design

Phase
Not applicable
Primary purpose
Supportive care
Allocation
Non-randomized
Intervention model
Crossover assignment
Masking
None (open label)
Enrollment
13 participants (actual)

Study arms

  • Active comparator
    Residents in memory care or skilled nursing Facility

    Device: Activlink insole

  • Active comparator
    Resident in independent living setting

    Device: Activlink insole

  • Other
    Care Partners

    Other: Activlink Phone Application

Interventions

  • DeviceActivlink insole

    Dementia patients will wear the provided insole inserted into their own shoes. The insole will have a small electronic sensor that measures acceleration, foot force, and/or orientation.

    Also known as: Location Monitoring Technology

  • OtherActivlink Phone Application

    Smartphone tool used for monitoring location

    Also known as: Location Monitoring Technology

06

What researchers measure

Primary outcomes

  1. Caregiver Activity Survey

    Validated scale requires caregivers to report on amount of time spent caregiving for a particular patient. It has high test-retest reliability. Caregivers will be asked to complete this instrument once every two weeks. The scale describes the total number of minutes spent daily on six different caregiving activities. Therefore the minimum value for each item is 0 and the maximum is 1,440 for each item. Higher scores on each item mean more time spent caregiving.

    Time frame: week 2

Secondary outcomes

  1. Zarit Caregiver Burden Scale

    This is validated instrument designed to reflect what people sometimes feel when taking care of another person. Caregivers will be asked to complete this instrument once every two weeks. Total score was calculated. Scores ranged from 0-48 with a higher score indicating greater caregiver burden.

    Time frame: Up to 6 months

  2. AD Quality of Life Scale

    Assesses Caregiver quality of life with 13 questions rating from poor to excellent. Caregivers circle their responses. Caregivers will be asked to complete this instrument once every two weeks. Total score was calculated. Scores ranged from 13-52, with a higher score indicating better quality of life in caregivers.

    Time frame: up to 6 months

Other outcomes

  1. Device Accuracy

    Percentage of physical checks where device displayed correct location of patient/resident. Only partners reported on the accuracy. No data were required from participants. Therefore, they were entered as 0s in the chart.

    Time frame: First month of overall study period

07

Results

Posted May 17, 2023
Limitations and caveats
Participants from study 2A discontinued before the end of the intervention period, and caregiving nurse practitioners failed to respond to the surveys biweekly. Only 4 surveys were collected by the end of study 2A. Largely because of the Corona Virus 19 pandemic all contacted participants from study 2B declined or withdrew consent of baseline data collection and treatment implementation. Therefore, no data were collected for this phase of the study.

Participant flow

Participant flow — Overall Study
MilestoneResidents in Memory Care or Skilled Nursing FacilityResident in Independent Living SettingCare Partners
Started1003
Completed203
Not completed800
Withdrew: Withdrawal by subject200
Withdrew: Pandemic caused suspension of study activities600

Outcome measures

PrimaryCaregiver Activity Survey

Validated scale requires caregivers to report on amount of time spent caregiving for a particular patient. It has high test-retest reliability. Caregivers will be asked to complete this instrument once every two weeks. The scale describes the total number of minutes spent daily on six different caregiving activities. Therefore the minimum value for each item is 0 and the maximum is 1,440 for each item. Higher scores on each item mean more time spent caregiving.

Time frame:
week 2
Reported as:
Mean · minutes
Caregiver Activity Survey
minutesResidents in Memory Care or Skilled Nursing FacilityResident in Independent Living SettingCare Partners
Caregiver Activity Survey——305.7 ± 177.5
SecondaryZarit Caregiver Burden Scale

This is validated instrument designed to reflect what people sometimes feel when taking care of another person. Caregivers will be asked to complete this instrument once every two weeks. Total score was calculated. Scores ranged from 0-48 with a higher score indicating greater caregiver burden.

Time frame:
Up to 6 months

No measurements were reported for this outcome.

SecondaryAD Quality of Life Scale

Assesses Caregiver quality of life with 13 questions rating from poor to excellent. Caregivers circle their responses. Caregivers will be asked to complete this instrument once every two weeks. Total score was calculated. Scores ranged from 13-52, with a higher score indicating better quality of life in caregivers.

Time frame:
up to 6 months

No measurements were reported for this outcome.

Other pre-specifiedDevice Accuracy

Percentage of physical checks where device displayed correct location of patient/resident. Only partners reported on the accuracy. No data were required from participants. Therefore, they were entered as 0s in the chart.

Time frame:
First month of overall study period
Reported as:
Number · percentage of observations
Device Accuracy
percentage of observationsNurse Assistants Recorded Data From Residents in Memory Care or Skilled Nursing FacilityPartner Reported Data on Resident in Independent Living SettingResidents in Memory Care or Skilled Nursing FacilityResident in Independent Living Setting
Device Accuracy87.83———

Adverse events

Collected over Full study period of 6 months for each participant.. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Residents in Memory Care or Skilled Nursing Facility0/10 (0%)0/10 (0%)1/10 (10%)
Resident in Independent Living Setting———
Care Partners0/3 (0%)0/3 (0%)0/3 (0%)
Most frequent other events
Most frequent other events
EventResidents in Memory Care or Skilled Nursing FacilityResident in Independent Living SettingCare Partners
Accurate WiFi-Based Localization of Dementia Patients For Caregiver SupportProduct Issues1/10—0/3

Baseline characteristics

Pandemic circumvented recruitment of independent living residents.

Age, Categorical
Age, Categorical(Participants)Residents in Memory Care or Skilled Nursing FacilityResident in Independent Living SettingCare PartnersTotal
<=18 years0—00
Between 18 and 65 years1—34
>=65 years9—09
Sex: Female, Male
Sex: Female, Male(Participants)Residents in Memory Care or Skilled Nursing FacilityResident in Independent Living SettingCare PartnersTotal
Female7—310
Male3—03
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)Residents in Memory Care or Skilled Nursing FacilityResident in Independent Living SettingCare PartnersTotal
Hispanic or Latino0—00
Not Hispanic or Latino10—313
Unknown or Not Reported0—00
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Residents in Memory Care or Skilled Nursing FacilityResident in Independent Living SettingCare PartnersTotal
American Indian or Alaska Native0—00
Asian0—00
Native Hawaiian or Other Pacific Islander0—00
Black or African American0—00
White10—313
More than one race0—00
Unknown or Not Reported0—00
Region of Enrollment
Region of Enrollment(participants)Residents in Memory Care or Skilled Nursing FacilityResident in Independent Living SettingCare PartnersTotal
United States10—313
MiniMental State Exam
MiniMental State Exam(units on a scale)Residents in Memory Care or Skilled Nursing FacilityResident in Independent Living SettingCare PartnersTotal
Mean18.8 ± 3.8——18.8 ± 3.8
08

Study locations

2 sites
  • Oak Hammock Senior Living Center
    Gainesville, Florida 32608, United States
  • Unversity of Florida
    Gainesville, Florida 32611, United States
09

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Jan 2021 to primary completion in May 2022, 16 months.

Results were first posted in May 2023, 11 months after primary completion.

Of 42 non-industry interventional studies with no phase under Dementia, Vascular, half reached primary completion within 36 months of starting (the median), counting those still running; a quarter within 26 and three quarters within 53. This study's 16 months is below that.

Counting every sponsor, half of 52 studies reached it within 35 months; a quarter within 25 and three quarters within 53.

How these figures are worked out, and which studies are left out of them.

Registered
Nov 27, 2017
First posted
Dec 2, 2017
StartActual
Jan 27, 2021
Primary completionActual
May 31, 2022
CompletionActual
May 31, 2022
Results first posted
May 17, 2023
Last update
May 17, 2023
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on May 17, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03360019
Collaborators
National Institute on Aging (NIA), Aster Labs, Inc
Responsible party
Sponsor
First posted
Dec 2, 2017
Start date
Jan 27, 2021
Primary completion
May 31, 2022
Completion
May 31, 2022
Results posted
May 17, 2023
Last update
May 17, 2023

Study contacts

Glenn Smith, PhD, ABPP-cn
principal investigator · University of Florida

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in May 2023. You cannot join it, but the record below documents what was studied.

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