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Inflammation, Diabetes, Ethnicity and Obesity Cohort (IDEO)

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ClinicalTrials.gov Identifier: NCT03022682
Recruitment Status : Recruiting
First Posted : January 16, 2017
Last Update Posted : February 3, 2023
Information provided by (Responsible Party):
University of California, San Francisco

Brief Summary:

Obesity affects over one third of US adults (>72 million, with BMI ≥30 kg/m2), and the proportion of US adults with BMI ≥40 kg/m2 has doubled in the last 20 years. Obesity is associated with increased mortality through its linkage to comorbidities including diabetes, hypertension, dyslipidemia, osteoarthritis, sleep apnea and psychosocial disturbances. Given its prevalence, impact on morbidity and mortality, and economic cost, limiting the spread of obesity and its consequences is one of the most important problems of our time.

In this proposed study, investigators will recruit participants from a wide range of body mass index (BMI), ethnicity and Diabetes risk to collect data and blood, stool and adipose tissue samples in the San Francisco bay area.

Condition or disease
Obesity Diabetes Mellitus Pre Diabetes

Detailed Description:
The Inflammation, Diabetes, Ethnicity and Obesity (IDEO) cohort is recruiting 350 individuals from various ethnicities, covering a spectrum of weight and Diabetes risk. The study is looking for participants between the ages of 18-75 years that are healthy with or without diabetes with a stable weight. The study will also like to include people who are slated to undergo any type of bariatric surgery for obesity or any other type of abdominal surgery at UCSF.

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Study Type : Observational
Estimated Enrollment : 350 participants
Observational Model: Cohort
Time Perspective: Prospective
Official Title: Development of a Multi-Ethnic, Multimodal Obesity Cohort
Study Start Date : February 2015
Estimated Primary Completion Date : December 2025
Estimated Study Completion Date : December 2025

IDEO Cohort

Adipose tissue samples are collected from all participants, including aspirational subcutaneous biopsies from nonsurgical participants and excisional biopsies, performed intra-operatively by surgical collaborators as required.

Participants also undergo anthropometric measurements, stool collection, blood sample collection for circulating blood cells, serum, and plasma.

Dual-energy x-ray absorptiometry (DXA) scan for amount and distribution of body fat as well as bone density is performed.

Study participants complete validated questionnaire inventories to measure bio-behavioral issues such as depression, stress, health locus of control, and dietary habits.

Primary Outcome Measures :
  1. Complete recruitment of IDEO cohort participants to spur novel and creative interactions between investigators that have transformative potential in obesity research. [ Time Frame: 7 years ]
    Number of biological samples collected

Secondary Outcome Measures :
  1. Adipose tissue inflammation and fibrosis [ Time Frame: 7 years ]
    Quantification of pro-fibrotic and pro-inflammatory markers in the visceral and subcutaneous adipose tissue

Biospecimen Retention:   Samples With DNA
Serum, plasma, Adipose tissue, stool

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 75 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population
IDEO Cohort participants

Inclusion Criteria:

  • Participants will be healthy individuals between the ages of 18-75 years. These cutoffs are designed to allow inclusion of postmenopausal women, and younger/more active patients who are increasingly undergoing bariatric surgery.
  • Patients with either diabetes type 2 or the metabolic syndrome will be included in the cohort.

Exclusion Criteria:

  • Participants with chronic kidney disease (> stage 4)
  • Autoimmune/inflammatory disease (e.g., Lupus, Ulcerative Colitis, etc.)
  • Unstable angina, New York (NY) class III or IV congestive heart failure or myocardial infarction within 3 months of entry
  • Clinically significant liver disease (e.g. Cirrhosis or liver failure)
  • Weight > 450 pounds (DXA scan weight limit)
  • History of organ transplant
  • Treatment with chemotherapy or radiation therapy at the time of enrollment in study.
  • Poorly controlled asthma (participants requiring inhaled glucocorticoids and/or oral glucocorticoids)
  • Current nasal corticosteroid use (within the past month)
  • Excessive alcohol or substance abuse
  • Current use of anabolic steroids or testosterone for bodybuilding purposes. Testosterone use is permitted if prescribed for hypogonadism and dose stable for the past 6 months.
  • Patients actively enrolled in interventional trials involving investigational agents
  • Pregnant or breast-feeding women
  • Appears unlikely or unable to participate in the required study procedures as assessed by the investigator, study coordinator or designee.
  • History of abnormal clotting
  • Previous bariatric surgery
  • Anticoagulant use

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03022682

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United States, California
University of California San Francisco Recruiting
San Francisco, California, United States, 94143
Contact: Suneil Koliwad, MD,PhD       ob.cohort@ucsf.edu   
Contact: Judy Gonzalez-Vargas, BS       ob.cohort@ucsf.edu   
Sub-Investigator: Diana L Alba, MD         
Sponsors and Collaborators
University of California, San Francisco
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Principal Investigator: Suneil Koliwad, MD,PhD University of California, San Francisco
Additional Information:
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
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Responsible Party: University of California, San Francisco
ClinicalTrials.gov Identifier: NCT03022682    
Other Study ID Numbers: 14-14248
First Posted: January 16, 2017    Key Record Dates
Last Update Posted: February 3, 2023
Last Verified: February 2023
Keywords provided by University of California, San Francisco:
Additional relevant MeSH terms:
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Diabetes Mellitus
Prediabetic State
Glucose Metabolism Disorders
Metabolic Diseases
Endocrine System Diseases
Nutrition Disorders
Body Weight