Clinical trial Recruiting at 1 site Observational Ages 20 and up

Registry studying obesity, circadian rhythm, and aging

Official title: OCEAN Registry: Obesity and Clock for Elegant Aging Registry 肥胖控制及生理時鐘之研究計畫

Run by Chang Gung Memorial Hospital · NCT02674230 · Data updated 2026-11-12

This study is trying to see how obesity, sleep patterns, and aging are connected by following 2,000 adults over 10 years to learn more about their health.

Quick facts

Study typeObservational
Ages20 Years and up
SexAll
Enrollment2000 (estimated)
SponsorChang Gung Memorial Hospital
Academic / other
Locations1 site (Taoyuan)
StatusRecruiting
StartedJuly 2011
Main results expectedJune 2035
Study endsJune 2035
Registry record updatedJune 23, 2026
Trial IDNCT02674230 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include adults aged 20 years and older with a body mass index of 24 kg/m2 or higher, as well as normal weight individuals with a BMI below 24.

Probably not a fit

Patients with severe systemic diseases or organ failure, or those who cannot provide informed consent, may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study aims to explore the relationships between obesity, circadian rhythm, and aging by establishing a prospective cohort registry. It will follow 2000 adult participants, including those with morbid obesity and normal weight, over a period of 10 years with annual assessments. Data collected will include clinical information, biological samples, and questionnaires related to sleep quality and circadian activities. The study seeks to understand the pathophysiological and molecular connections between these factors and their impact on aging and cardiovascular health.

Why it matters

Potential benefit: If successful, this study could provide insights that lead to improved management and treatment strategies for obesity and related conditions.

How similar studies have gone: Other studies have shown success in exploring the links between obesity and circadian rhythms, but this specific registry approach is relatively novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age ≥ 20 years old
* Body mass index ≥ 24 kg/m2
* For normal subjects, Body mass index \< 24 kg/m2

Exclusion Criteria:

* No inform consent
* Use of steroid medications
* Severe systemic diseases or organ failure with estimated life expectancy of 6 months or less

Where it's running

  • Chang Gung Memorial Hospital
    Taoyuan, Taiwan
    Recruiting

Study contacts

  • Principal investigator: Chao-Yung Wang, MD — Chang Gung Memorial Hospital
  • Study coordinator: Chao-Yung Wang, MD
  • Email: cwang@ocean.ag
  • Phone: 886-3-3281200

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.