A Validation Study of the Novel Application of Telehealth in Clinical Drug Development in Subjects With Mild Cognitive Deficits

Mobile platforms have been leveraged in a variety of industries to drive dramatic efficiency
gains. The technology enables redesign of key processes allowing for the more efficient use
of labor and capital leading to better performance outcomes. Telehealth is the use of
electronic information and mobile telecommunications technologies to support long-distance
clinical health care, patient and professional health-related education, public health and
health administration. Much of the focus for the Institute of Medicine and other government
agencies has been the application of telehealth to improve access to healthcare and
specialized expertise by extending the reach of scarce resources to underserved populations.
These platforms are also routinely deployed as disease management tools. A natural extension
of these aims is the use of telehealth in the clinical development process, where both
improved efficiency and the ability to be more inclusive of a broader patient population are
critical steps in modernizing the clinical trial.

REINVENT is a non-interventional, multi-center, research network-based cross-over study
evaluating the potential utility of a telehealth platform in improving the efficiency of
clinical trials. The study aims to enroll 30 subjects from between 9 and 11 qualified
Radiant Clinical Research primary care physicians (PCP), coordinated through a single main
study site. Potential subjects will be screened and randomized (1:1) at Visit 1 into a
2-period crossover design study where 4 standard cognitive outcome measures are administered
at Visits 2 (Day 30 ±7) and 3 (Day 90 ±7), either remotely or during an in-person visit. A
60-day interval is required between Visits 2 and 3 to reduce learning effects commonly
observed with repeated administration of cognitive assessments.

Inclusion Criteria:

- Age at screening 50 to 85 years, inclusive, at the time of informed consent.

- Diagnosis of mild cognitive deficits due to AD based on the core clinical diagnostic
criteria of the National Institute of Aging and Alzheimer's Association (Albert 2011;
McKhann 2011) and reviewed centrally by a main study site Principal Investigator

- MMSE score of 24-27, inclusive at screening

- Subject (or legally authorized representative) is willing and able to provide written
informed consent

- Existence of a reliable study partner (i.e., someone who spends at least 2 days a
week with the subject) or caregiver who is willing to attend study visits with the
subject

- Willing and able to travel to the main study site (via provided transportation) for
either Visit 2 or Visit 3

Exclusion Criteria:

- Any medical or neurological condition (other than AD) that might be a contributing
cause of the subject's cognitive impairment

- Have had a stroke or transient ischemic attack (TIA) or unexplained loss of
consciousness in the past 1 year

- Clinically significant psychiatric illness in past 6 months

- Relevant brain hemorrhage, bleeding disorder and cerebrovascular abnormalities

- Alcohol or substance abuse in past 1 year

- History of unstable angina, myocardial infarction, chronic heart failure (New York
Heart Association Class III or IV), or clinically significant conduction
abnormalities (e.g., unstable atrial fibrillation) within 1 year prior to Screening.

- Uncontrolled hypertension defined as a systolic blood pressure [SBP]/diastolic blood
pressure [DBP] readings > 165/100 mmHg at Screening, or persistent SBP/DBP readings
prior to enrollment that in the opinion of the Investigator are indicative of chronic
uncontrolled hypertension.

- Any medications that, in the opinion of the Investigator, may contribute to cognitive
impairment, or impair the subject's ability to perform cognitive testing.

- Use of allowed chronic medications at doses that have not been stable for at least 4
weeks prior to Screening Visit 1 or use of AD medications (including but not limited
to donepezil, rivastigmine, galantamine, tacrine, and memantine) at doses that have
not been stable for at least 8 weeks prior to Screening Visit 1.

- Participation in any interventional clinical research study within 30 days prior to
screening, or during study conduct

- In the opinion of the Investigator, presence of any other clinical conditions (e.g.,
life expectancy, co-existing disease) or other characteristics that would likely
interfere with completion of the study