# Novel automated performance-based ADL outcomes for early AD clinical trials

> **NIH NIH R01** · BRIGHAM AND WOMEN'S HOSPITAL · 2021 · $968,003

## Abstract

Project Summary
Impairment in activities of daily living (ADL) is a hallmark of Alzheimer’s disease (AD) dementia 
and a major source of caregiver burden. Similar to cognitive and behavioral changes in AD, subtle 
difficulties in complex ADL may  begin  even  before  the  stage  of  amnestic  mild  cognitive  
impairment  (MCI).  Preclinical  AD  consists  of individuals with minimal or no symptoms but 
biomarker evidence of AD pathology. As secondary prevention trials in preclinical AD are being 
launched and the FDA is providing new guidance for early AD trial outcomes, it is imperative that 
we develop new ecologically valid instruments to detect subtle yet clinically meaningful 
alterations in  complex  ADL.  Older  individuals  are  increasingly  required  to  interact  via  
telephone  and  computer-based technology to perform essential ADL. The overall goal of this 
proposal is to optimize and validate a novel set of automated  performance-based  ADL  instruments, 
 the  Harvard  Automated  Phone  Task  (APT)  and  computer- based Czaja Functional Assessment 
Battery (CFAB), which have been designed to tap the high level tasks that challenge seniors in 
daily life and to serve as ADL outcomes for preclinical and early prodromal AD clinical trials. For 
the first time, we have a chance to visualize regional tau deposition in vivo, using a new 
promising positron  emission  tomography  (PET)  tracer,  T807,  a.k.a.  18F-AV-1451.  1)  To  
date,  there  have  been  no consistent associations between ADL performance and AD biomarkers in 
clinically normal (CN) elderly or early MCI alone. 2) We now have a unique opportunity to relate 
novel molecular imaging biomarkers of tau and amyloid to our novel ADL instruments. 3) There are no 
established instruments for detecting early ADL changes in CN individuals who may be in the 
preclinical stages of AD or in individuals with early prodromal AD. Here we seek
to fill this gap in knowledge by further validating the Harvard APT and CFAB.
The telephone is still the most prevalent technology mode of communication in the elderly, nearly 
all of whom in North America own a phone; about a third own a computer; more are starting to use 
smartphones; and most need to use an interactive voice response system (IVRS) to complete everyday 
activities. In the Harvard APT, subjects navigate an IVRS in order to refill a prescription 
(APT-Script), select a new physician (APT-PCP), and make a bank account transfer and payment 
(APT-Bank). In the CFAB, subjects refill a prescription (CFAB-Script) and perform automated teller 
machine (ATM) transactions (CFAB-ATM). These tasks simulate real-life activities commonly required 
of elderly. We will assess the Harvard APT and CFAB in 200 subjects (100 CN, 50 subjective 
cognitive decline (SCD), and 50 MCI), assess their relationship to cognitive function at baseline 
and over 3 years, assess their ability to track disease progression, and assess their relationship 
to AD i...

## Key facts

- **NIH application ID:** 10116237
- **Project number:** 5R01AG053184-04
- **Recipient organization:** BRIGHAM AND WOMEN'S HOSPITAL
- **Principal Investigator:** GAD ASHER MARSHALL
- **Activity code:** R01 (R01, R21, SBIR, etc.)
- **Funding institute:** NIH
- **Fiscal year:** 2021
- **Award amount:** $968,003
- **Award type:** 5
- **Project period:** 2018-06-01 → 2024-02-29

## Primary source

NIH RePORTER: https://reporter.nih.gov/project-details/10116237

## Citation

> US National Institutes of Health, RePORTER application 10116237, Novel automated performance-based ADL outcomes for early AD clinical trials (5R01AG053184-04). Retrieved via AI Analytics 2026-05-23 from https://api.ai-analytics.org/grant/nih/10116237. Licensed CC0.

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