CI

At a glance

ClinicalIndex Comparison Record
N/ACompleted· 139 enrolled
Drug / intervention
Wearable Sensor +4 moreother
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT04827446
NCT04827446N/ACompleted

A Randomized Trial Of The SYNC APP

University of Michigan Rogel Cancer Center·interventional·Posted Apr 1, 2021·Updated Jul 9, 2025

In Brief

A clinical study evaluating Wearable Sensor, Blue-blocking glasses, and 3 other interventions for Breast Cancer and 4 related conditions. Completed, enrolled 139 participants across 1 site.

Detailed Summary

Fatigue is a major problem for cancer patients, and one that can persist long after treatment ends. Recent work has demonstrated that light therapy may mitigate or reduce fatigue levels in both cancer patients and cancer survivors. This protocol seeks to assess how lighting interventions distributed through a mobile app affect fatigue, sleep, and quality of life across three populations of cancer patients: breast cancer and prostate cancer, and patients who have undergone autologous hematopoietic stem cell transplant (HSCT). Participants will be randomized 1:1 to either the interventional SYNC app or to a control app.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesUnited States

Timeline

N/ACompletedFinished
20222023202420252026
First PostedApr 1, 2021
Enrollment StartJul 15, 2021
Primary CompletionMar 9, 2023
TodayJul 2, 2026
Enrollment to primary: 1.7 yearsPosted 5.3 years ago

Interventions

Wearable Sensorother

Patient is given a wearable device to wear for 12 weeks.

Blue-blocking glassesother

Patient is given blue-blocking glasses to wear at instructed times.

Clear glassesother

Patient is given glasses that block no visible light.

Full SYNC appother

Patient downloads the SYNC app and is given light interventions designed to have a targeted, personalized effect on the circadian clock.

"Dummy" SYNC appother

Patient downloads the SYNC app and is given light interventions designed to have minimal impact on the circadian clock.