- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT06115590
Novel Objective Digital Biomarkers for Assessing Sub-clinical Mood Disturbances in the Singaporean Population
The investigators aim to assess the relationship between objectives markers (of physiological reactivity) recorded using a smartwatch and self-reported subjective outcomes measured using standardized and non-standardized questionnaires recorded in an eDiary; with stress as the model for our assessment utilizing the validated PSS-10 questionnaire.
As personal characteristics such as personality traits, resilience, and grit have been shown to modulate reactivity and mental health status, the investigators aim to explore the modulation of the study outcomes by such personality factors. Furthermore, the investigators aim to explore the association of the study outcomes with the composition and functional potential of the gut microbiome.
Finally, the investigators aim to explore the effects of a nutritional intervention on our outcome measures.
Participants will participate in a decentralized, parallel-group study with a mixed design lasting 8 days (excluding screening and enrollment). A total of 120 participants are divided into low-stress(n=40), and elevated-stress groups (n=80) based on their perceived stress score (PSS-10, cut-off score 13). A subgroup of elevated-stress participants (n=40) will be administered a nutritional intervention for 3 days. Their responses will be compared to another subgroup of elevated-stress participants (n=40) without intervention.
Study Overview
Status
Conditions
Intervention / Treatment
Study Type
Enrollment (Estimated)
Phase
- Not Applicable
Contacts and Locations
Study Contact
- Name: Jeroen Schmitt, PhD
- Phone Number: 6407 4060
- Email: jeroen_schmitt@sics.a-star.edu.sg
Study Contact Backup
- Name: Litali Mohapatra, MSc
- Phone Number: 87424624
- Email: Litali_Mohapatra@SICS.a-star.edu.sg
Study Locations
-
-
-
Singapore, Singapore, 117609
- Recruiting
- Singapore Institute for Clinical Trials
-
Contact:
- Jeroen Schmitt, PhD
- Phone Number: 6407 4060
- Email: jeroen_schmitt@sics.a-star.edu.sg
-
Contact:
- Litali Mohapatra, MSc
- Phone Number: 87424624
- Email: Litali_Mohapatra@SICS.a-star.edu.sg
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
- Adult
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- Aged 21 to 30 years
- Own and uses a smartphone that is capable of running the study applications
- Have access to the internet
- Adequate fluency in the English language to understand the informed consent process, study instructions and study assessments
- Sufficient vision and hearing to complete study procedures
- Willing to commit to about 20 minutes of assessments each day for a period of 8 days
- Willing to wear selected study devices 24 hours/day; 7-days per week with only occasional relief
- Willing and able to participate and to give written informed consent
Exclusion Criteria:
- Past (< 6 months prior to the study) or current neurological or psychiatric condition
- Past (< 3 months prior to the study) or current use of psychoactive medication
- Having received antibiotic treatment < 4 weeks prior to the study
- Present or past history of alcohol or drug addiction and/or recreational drug use
- Maltodextrin allergy
- Members of the research team or their immediate family members. An immediate family member is defined as spouse, parent, child, or sibling, whether biological or legally adopted
- Women participants who are currently pregnant or have been pregnant in past 6 months
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Basic Science
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
No Intervention: Low Stress
Reference Group
|
|
No Intervention: Elevated Stress
Half of the Participants(n=40) with elevated stress (PSS score >13) will be randomly assigned to this group
|
|
Experimental: Elevated Stress intervention
Half of the Participants(n=40) with High stress (PSS score >13) will be randomly assigned to this group
|
Nutritional intervention hypothesized to have an acute anxiolytic effect
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Depression Anxiety and Stress Scale 21 (DASS-21)
Time Frame: 7 days
|
The Depression, Anxiety and Stress Scale - 21 Items (DASS-21) is a set of three self- report scales designed to measure the emotional states of depression, anxiety and stress in clinical and non-clinical populations. Each of the three DASS-21 scales contains 7 items that are scored on a 4-point Likert scale (0-3). In the current study a modified version is used where subjects rate their symptoms over the past 24 hours, rather than 1 week. This questionnaire will be completed daily at 9 pm. |
7 days
|
State Trait Anxiety Inventory (STAI-6) 23
Time Frame: 7 days
|
The STAI-6 is a validated short-form version (6 items) of the 40-item STAI questionnaire, measuring current anxiety symptoms on a 4-point Likert scale. Total score is calculated (range 6-24). This questionnaire will be completed daily at 1 pm. |
7 days
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Ecological Momentary Assessment
Time Frame: 7 days
|
In the smartphone application, subject will be prompted four times a day with the following statements. The EMA assessment will occur daily at 9.00 am, 1.00 pm, 5.00 pm, 9.00 pm. Subjects are asked to indicate their current state on a VAS (Visual analog Scale). The score in the scale ranges from 0 to 100. 0 being "Not at all" and 100 being "Very Much". The participants will be asked to respond to the following questions: "Right now, I feel mentally sharp" - to assess perception of cognitive ability "Right now, I feel fatigued" - to assess fatigue/exhaustion directly "Right now, I feel stressed" - to assess stress "Right now, I feel nervous" - to assess nervousness/tension "Right now, I feel depressed" - to assess depression "Right now, I am in a good mood" - to assess joy "Right now, I feel thirsty" - to assess level of thirst "Right now, I feel hungry" - to assess level of hunger "I slept well last night" - to assess subjective sleep quality |
7 days
|
Activity
Time Frame: 7 days
|
Activity level, including #steps, distance traveled, and floors climbed, is measured using a Fitbit Sense 2 smart watch.
|
7 days
|
Respiratory rate
Time Frame: 7 days
|
Respiratory rate (breaths per minute) is measured using a Fitbit Sense 2 smart watch.
|
7 days
|
Heart rate
Time Frame: 7 days
|
Heart rate (beats per minute) is continuously measured using a Fitbit Sense 2 smart watch.
|
7 days
|
Sleep
Time Frame: 7 days
|
Sleep duration (minutes) and quality are measured using a Fitbit Sense 2 smart watch.
|
7 days
|
Blood oxygenation level (SpO2)
Time Frame: 7 days
|
Blood oxygenation level (%) is measured using a Fitbit Sense 2 smart watch.
|
7 days
|
Electrodermal activity (EDA)
Time Frame: 7 days
|
In four user-initiated 2-min sessions per day, Electrodermal activity is measured via a Fitbit Sense 2 smart watch.
|
7 days
|
Other Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Stool microbiome composition
Time Frame: baseline
|
Stool samples will be collected at home on the first test day and analyzed for gut microbiome composition using shotgun metagenomic sequencing.
|
baseline
|
stool microbiome functional potential
Time Frame: baseline
|
In addition to mapping the taxonomic abundance, the gut microbiome functional potential will be analysed using Biobakery analysis tools.
|
baseline
|
Collaborators and Investigators
Collaborators
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimated)
Study Record Updates
Last Update Posted (Estimated)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Other Study ID Numbers
- 2023-018
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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