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Fatigue Investigation Using Digital Outcomes
Sponsor: Liliana Barrios
Summary
This study investigates objective methods to measure and monitor fatigue in patients with post-COVID-19 condition (long COVID) and multiple sclerosis (MS), and includes a group of healthy volunteers for comparison. Fatigue is a common and debilitating symptom of both conditions, but current assessment methods rely mainly on questionnaires, which can be limited by subjectivity and recall bias. The study uses a smartphone application (the FIDO app) together with wearable devices to continuously collect data on fatigue and its fluctuations during daily life, in order to evaluate the potential of digital, objective measures compared to standard assessments. Participation lasts approximately eight weeks and includes two in-person clinic visits along with a continuous data collection phase. At the initial visit, participants complete baseline assessments and questionnaires and are introduced to the study's digital tools. During the following weeks, participants wear two wearable devices continuously (24 hours a day) and use the FIDO app to complete short daily tasks (approximately 7 minutes every two days) and brief questionnaires (approximately 5 minutes per day). All participants collect a stool sample at home at weeks 4 and 8 for gut microbiome analysis, and complete the Fatigue Scale for Motor and Cognitive Functions at week 4. At the final study visit, participants repeat a subset of the baseline assessments, provide feedback on the digital technology used, and return the study devices.
Official title: Fatigue Investigation Using Digital Outcomes (FIDO) - An Exploratory Project
Key Details
Gender
All
Age Range
18 Years - 65 Years
Study Type
OBSERVATIONAL
Enrollment
122
Start Date
2026-05-26
Completion Date
2028-05-01
Last Updated
2026-08-24
Healthy Volunteers
Yes
Conditions
Locations (6)
Neurozentrum Basel Messeturm
Basel, Basel, Switzerland
Bellevue Medical Group - Neurozentrum Sternen / Neurozentrum Bellevue
Zurich, Canton of Zurich, Switzerland
University of Zurich
Zurich, Canton of Zurich, Switzerland
NeuroPraxis Zürich GmbH
Zurich, Canton of Zurich, Switzerland
Bellevue Medical Group - Neurozentrum Seefeld
Zurich, Canton of Zurich, Switzerland
Klinik Lengg AG
Zurich, Canton of Zurich, Switzerland