NCT04806269

Brief Summary

This study is a single center observational study to investigate the association between biosignals from wearables and thyroid dysfunction.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
120

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Jan 2021

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 18, 2021

Completed
8 days until next milestone

First Submitted

Initial submission to the registry

January 26, 2021

Completed
2 months until next milestone

First Posted

Study publicly available on registry

March 19, 2021

Completed
2.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 30, 2023

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2023

Completed
Last Updated

April 13, 2023

Status Verified

April 1, 2023

Enrollment Period

2.7 years

First QC Date

January 26, 2021

Last Update Submit

April 11, 2023

Conditions

Keywords

Wearable deviceBiosignalsThyrotoxicosisHypothyroidismMobile app

Outcome Measures

Primary Outcomes (16)

  • free T4

    serum concentration of free T4

    visit 2: 1-2 weeks after enrollement (visit 1)

  • free T4

    serum concentration of free T4

    visit 3 : 4 weeks after visit 2

  • free T4

    serum concentration of free T4

    visit 4 : 4 weeks after visit 3

  • TSH

    serum concentration of TSH

    visit 2: 1-2 weeks after enrollement (visit 1)

  • TSH

    serum concentration of TSH

    visit 3 : 4 weeks after visit 2

  • TSH

    serum concentration of TSH

    visit 4 : 4 weeks after visit 3

  • heart rate

    continuously monitored heart rate by wearable device

    throughout the study period (average 3 months)

  • Activity_steps (count/min)

    continuously monitored steps per minute by wearable device

    throughout the study period (average 3 months)

  • Sleep_sleep start time (yyyy:mm:dd:hh:mm:ss)

    sleep start time extracted from continuously monitored sleep data by wearable device (e.q. 2021:03:15:23:00:00)

    throughout the study period (average 3 months)

  • Sleep_sleep end time (yyyy:mm:dd:hh:mm:ss)

    sleep end time extracted from continuously monitored sleep data by wearable device (e.q. 2021:03:16:06:00:00)

    throughout the study period (average 3 months)

  • Hyperthyroid symptom scale

    HSS gives scores from 0 to 40, where higher scores indicate more severe disease. It consists of a 10-item scale that rates nervousness, diaphoresis, heat intolerance, motor activity, tremor, weakness, hyperdynamic precordium, diarrhea, weight loss/appetite, and overall function.

    visit 2: 1-2 weeks after enrollement (visit 1)

  • Zulewski's clinical score

    Clinical scoring system for assessing hypothyroid symptoms and signs (0-12, higher scores indicate more severe)

    visit 2: 1-2 weeks after enrollement (visit 1)

  • Hyperthyroid symptom scale

    HSS gives scores from 0 to 40, where higher scores indicate more severe disease. It consists of a 10-item scale that rates nervousness, diaphoresis, heat intolerance, motor activity, tremor, weakness, hyperdynamic precordium, diarrhea, weight loss/appetite, and overall function.

    visit 3 : 4 weeks after visit 2

  • Zulewski's clinical score

    Clinical scoring system for assessing hypothyroid symptoms and signs (0-12, higher scores indicate more severe)

    visit 3 : 4 weeks after visit 2

  • Hyperthyroid symptom scale

    HSS gives scores from 0 to 40, where higher scores indicate more severe disease. It consists of a 10-item scale that rates nervousness, diaphoresis, heat intolerance, motor activity, tremor, weakness, hyperdynamic precordium, diarrhea, weight loss/appetite, and overall function.

    visit 4 : 4 weeks after visit 3

  • Zulewski's clinical score

    Clinical scoring system for assessing hypothyroid symptoms and signs (0-12, higher scores indicate more severe)

    visit 4 : 4 weeks after visit 3

Study Arms (2)

Thyroid dysfunction group

Subjects with thyroid dysfunction including thyrotoxicosis and hypothyroidism Subjects who were newly diagnosed or undergoing treatment for thyroid dysfunction can be included in the study. Subjects should use a wearable device (Fitbit Inspire 2 TM) and a mobile app (Glandy TM) during the study period.

Device: Fitbit and Glandy

Control group

Subjects without thyroid dysfunction including thyrotoxicosis and hypothyroidism. Subjects should use a wearable device (Fitbit Inspire 2 TM) and a mobile app (Glandy TM) during the study period.

Device: Fitbit and Glandy

Interventions

Data collection from wearable devices (Fitbit Inspire 2 TM) and a mobile app (Glandy TM) Fitbit collects user's heart rate, activity, and sleep data. Glandy collects user's subjective symptom scores.

Control groupThyroid dysfunction group

Eligibility Criteria

Age18 Years - 60 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)
Sampling MethodNon-Probability Sample
Study Population

Korean adults (age 18-60) who newly diagnosed as thyroid dysfunction (thyrotoxicosis or hypothyroidism) or undergoing treatment

You may qualify if:

  • Subjects who were newly diagnosed as thyroid dysfunction (thyrotoxicosis or hypothyroidism) or undergoing treatment
  • Subjects who are able to use wearable devices, smart phones, and mobile apps

You may not qualify if:

  • Subjects with restrictions on normal activities due to diseases other than thyroid dysfunction
  • Subjects who are taking medications affecting heart rate
  • Subjects with diseases affecting heart rate (i.e. arrhythmia)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Seoul National University Bundang Hospital

Seongnam-si, Gyeonggi-do, 13620, South Korea

RECRUITING

MeSH Terms

Conditions

ThyrotoxicosisHypothyroidism

Condition Hierarchy (Ancestors)

HyperthyroidismThyroid DiseasesEndocrine System Diseases

Central Study Contacts

Jae Hoon Moon, MD

CONTACT

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
SeoulNUBH

Study Record Dates

First Submitted

January 26, 2021

First Posted

March 19, 2021

Study Start

January 18, 2021

Primary Completion

September 30, 2023

Study Completion

December 31, 2023

Last Updated

April 13, 2023

Record last verified: 2023-04

Locations