Clinical Trial Details
— Status: Completed
Administrative data
| NCT number |
NCT04246424 |
| Other study ID # |
00117330 |
| Secondary ID |
|
| Status |
Completed |
| Phase |
N/A
|
| First received |
|
| Last updated |
|
| Start date |
January 16, 2019 |
| Est. completion date |
April 27, 2020 |
Study information
| Verified date |
February 2021 |
| Source |
University of Utah |
| Contact |
n/a |
| Is FDA regulated |
No |
| Health authority |
|
| Study type |
Interventional
|
Clinical Trial Summary
Short sleep duration is highly prevalent and linked to negative mental and physical health
consequences, including increased cardiovascular disease risk [1]. According to data from the
National Health Interview Survey, 70.1 million U.S. adults (29.2%) sleep <6 hours per 24 hour
period [2]. These statistics are a stark contrast to recommendations made by a recent
consensus panel of sleep experts that concluded "at least 7 hours" is the amount of sleep
needed for health and performance among adults [3]. Therefore, a high number of U.S. adults
could benefit from extending sleep duration. Several small experiments have demonstrated the
benefits of short-term sleep extension [4-8]. However, these studies are limited by extending
sleep as a temporary experimental manipulation rather than a longer-term behavioral
intervention. To deliver sleep extension interventions, wearable sleep trackers may be
useful, particularly given the rapid uptake among consumers (+500% in 3 years) [9]. We have
developed a novel technology-assisted behavioral sleep extension intervention that employs
four elements -- a wearable sleep tracker, didactic content, an interactive smartphone
feature and brief telephone counseling. User testing supports feasibility of extending sleep,
but little is known about the effects of differing types of technology interventions on
sleep. Therefore, the goal of this study is to examine the differences between technology
sleep extension interventions and sleep duration.
Description:
Study Design - Intervention
- Web or phone prescreening: Participants will first complete a brief online screening to
determine initial eligibility criteria (self-report of medical and psychiatric
conditions, sleep disorders). Individuals who are potentially eligible will be sent an
Actiwatch via FedEx, along with training instructions. Participants will wear the
Actiwatch for a 7-day prescreening assessment. Research staff will receive verbal
consent for this screening procedure and will go over instructions over the phone to
ensure participants understand how to use this device.
- Study Visits: Visit 1- Screening assessment: Participants will attend a one hour
laboratory visit that will include consent procedures, standardized measurements of
height, weight, waist and hip circumference, and blood pressure. Participants will
complete baseline study questionnaires.
- Enrollment: During visit 1, staff will review eligibility. Participants will be informed
at the end of visit one of their eligibility. If the participant is eligible, they will
receive a verbal and written instructions and informing them of their study group
assignment. If they are not eligible, a payment will be sent via check.
- Randomization: Participants will be randomized to 4 study groups using sealed envelopes
with assignments determined via a random number generator.
- Study Conditions: Participants will be randomly assigned to 1 of 4 study groups.
- Study group 1: Participants will receive the telephone coaching and wear the Fitbit
device week 1 through week 6.
- Study group 2: Participants will receive the telephone coaching only.
- Study group 3: Participants will wear the Fitbit device week 1 through week 6 study but
will not receive telephone coaching.
- Study group 4: Control group. Participants will not receive telephone coaching nor will
they wear the Fitbit device. They will be instructed to keep their sleep schedule
consistent.
Arms and Interventions -
- The intervention will be delivered via smartphone and adherence will be facilitated by
telephone coaching. Participants will receive weekly "lessons", which are content that
is emailed each week as part of the program. In study groups 1 and 3, participants will
wear a Fitbit sleep tracking monitor for the duration of the intervention. Coaches will
be able to log in and see participants' data to help encourage them to meet their sleep
goals.
- Weekly lesson content will be delivered via email (e.g. mail chimp).
- Telephone coaching: Participants in study groups 1 and 2 will be assigned to a sleep
coach who will monitor their progress during the study and provide weekly telephone
coaching sessions related to their sleep-related goals. The coaches will establish
legitimacy by their knowledge of sleep and basic counseling principles. They will
establish goals with the participants based on the participants' values and beliefs,
including the particular sleep related goals and also usage goals, (e.g., number of
log-ins completed per week). Performance monitoring will be completed through an online
dashboard visible to the coaches (Fitbit web log in). The first coaching session is a 20
min engagement session, which includes introductions, rational for the program,
clarifying roles of the coach and the participants' goals for the program. Coaches
(directed by Dr. Baron) will provide feedback to the participant based on Fitbit and
sleep diary data. For weeks 2-6, the coach and participant will also have weekly brief
(5-10 min) follow-up support calls to troubleshoot any problems with the application or
Fitbit, review progress, problem solve barriers to progress, and set goals for the
following week. In-between sessions, the coaches will be available, mostly over email,
to troubleshoot any problems with the content or Fitbit. Frequency of text, phone, and
email communication will be recorded.
- Control group: Participants assigned to the no-treatment wait list control condition
will be told they were assigned to the wait list group, and therefore eligible to
receive the intervention components at the end of the study. At the end of the final
session, they will receive a Fitbit wearable fitness tracker and emails with the 6
didactic lessons.