RECRUITING

Regional Lipolysis Insulin Regulation

Conditions

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Study Overview

This clinical trial focuses on testing the efficacy of different digital interventions to promote re-engagement in cancer-related long-term follow-up care for adolescent and young adult (AYA) survivors of childhood cancer.

Description

Adults who gain most of their excess weight in the abdominal area typically do not respond to insulin in the same way as lean adults. Researchers are trying to understand why fat tissue responds differently in people with different body types.

Official Title

Insulin Regulation of Regional Lipolysis

Quick Facts

Study Start:2024-05-01

Study Completion:2028-06

Study Type:Not specified

Phase:Not Applicable

Enrollment:Not specified

Status:RECRUITING

Study ID

NCT06392854

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Ages Eligible for Study:18 Years to 65 Years

Sexes Eligible for Study:ALL

Accepts Healthy Volunteers:Yes

Standard Ages:ADULT, OLDER_ADULT

Inclusion Criteria	Exclusion Criteria
* Males and females 18-65years who are able to comprehend instructions, follow study procedures and who willing to provide written, informed consent will be included. The volunteers will consume an isoenergetic diet eating all meals from Mayo Clinical Research Trials Unit (CRTU) for 3 days prior to study. * Overweight/Obese volunteers will have a BMI 29.0 - 37.0 kg/m2 * Upper body/visceral obesity (UBO) in women will be defined as those with a waist-hip ratio (WHR) \> 0.85 and/or increased visceral fat by single slice CT scan, usually with \> 120 cm2 of visceral fat by CT scanning or a visceral fat/total fat ratio of \> 0.30, and/or biochemical evidence of metabolic syndrome as defined by ATP III criteria (fasting plasma triglycerides ≥ 150 mg/dL, HDL-cholesterol \< 50 mg/dL for women and \< 40 mg/dL for men, fasting plasma glucose ≥ 100 mg/dL). Upper body obesity in men will be defined as a waist-hip ratio of \>0.95 and/or increased visceral fat (visceral fat area \> 180 cm2 or a visceral/total fat abdominal ratio by CT of \> 0.40) by single slice CT scan and/or biochemical evidence of metabolic syndrome as defined by adenosine triphosphate (ATP) III criteria. These visceral fat values are based upon the data collected at Mayo Clinic using our methods, and are correlated with dyslipidemia and hyperinsulinemia. * Lower body obesity (LBO) in women will be defined as a waist-hip ratio of \<0.75 and/or a lower visceral fat by single slice CT scan, usually \< 120 cm2 or a visceral fat/total fat ratio of ≤ 0.30 and fasting plasma triglycerides within the normal range. The term "lower body men" is used to describe a male phenotype that is characteristic of adipose insulin sensitivity even with excess body fat. A waist to hip ratio isn't suitable for this description as it is for women. LBO men will be defined as obese men with normal fasting plasma triglycerides, normal fasting plasma glucose and greater proportional leg fat via dual-energy x-ray absorptiometry (DEXA). * Female subjects are eligible if they meet the following criteria: * Are not pregnant or nursing. * All women of childbearing potential will have a negative urine pregnancy test at screening and a negative urine pregnancy test day of admission for inpatient study visit.	* Individuals with a history of a disease process such as: * Ischemic heart disease * Atherosclerotic valvular disease * Persistent blood pressure greater than 160/95 despite antihypertensive medication * Smokers * Diagnosis Diabetes Mellitus * Concomitant use of medications that can alter free fatty acid metabolism, including, but not limited to niacin, thiazolidinediones, beta-blockers, oral or injected corticosteroids or anabolic steroids. * Allergy to lidocaine * Allergy to indocyanine green.

Inclusion Criteria

Exclusion Criteria

* Males and females 18-65years who are able to comprehend instructions, follow study procedures and who willing to provide written, informed consent will be included. The volunteers will consume an isoenergetic diet eating all meals from Mayo Clinical Research Trials Unit (CRTU) for 3 days prior to study.
* Overweight/Obese volunteers will have a BMI 29.0 - 37.0 kg/m2
* Upper body/visceral obesity (UBO) in women will be defined as those with a waist-hip ratio (WHR) \> 0.85 and/or increased visceral fat by single slice CT scan, usually with \> 120 cm2 of visceral fat by CT scanning or a visceral fat/total fat ratio of \> 0.30, and/or biochemical evidence of metabolic syndrome as defined by ATP III criteria (fasting plasma triglycerides ≥ 150 mg/dL, HDL-cholesterol \< 50 mg/dL for women and \< 40 mg/dL for men, fasting plasma glucose ≥ 100 mg/dL). Upper body obesity in men will be defined as a waist-hip ratio of \>0.95 and/or increased visceral fat (visceral fat area \> 180 cm2 or a visceral/total fat abdominal ratio by CT of \> 0.40) by single slice CT scan and/or biochemical evidence of metabolic syndrome as defined by adenosine triphosphate (ATP) III criteria. These visceral fat values are based upon the data collected at Mayo Clinic using our methods, and are correlated with dyslipidemia and hyperinsulinemia.
* Lower body obesity (LBO) in women will be defined as a waist-hip ratio of \<0.75 and/or a lower visceral fat by single slice CT scan, usually \< 120 cm2 or a visceral fat/total fat ratio of ≤ 0.30 and fasting plasma triglycerides within the normal range. The term "lower body men" is used to describe a male phenotype that is characteristic of adipose insulin sensitivity even with excess body fat. A waist to hip ratio isn't suitable for this description as it is for women. LBO men will be defined as obese men with normal fasting plasma triglycerides, normal fasting plasma glucose and greater proportional leg fat via dual-energy x-ray absorptiometry (DEXA).
* Female subjects are eligible if they meet the following criteria:
* Are not pregnant or nursing.
* All women of childbearing potential will have a negative urine pregnancy test at screening and a negative urine pregnancy test day of admission for inpatient study visit.

* Individuals with a history of a disease process such as:
* Ischemic heart disease
* Atherosclerotic valvular disease
* Persistent blood pressure greater than 160/95 despite antihypertensive medication
* Smokers
* Diagnosis Diabetes Mellitus
* Concomitant use of medications that can alter free fatty acid metabolism, including, but not limited to niacin, thiazolidinediones, beta-blockers, oral or injected corticosteroids or anabolic steroids.
* Allergy to lidocaine
* Allergy to indocyanine green.

Contacts and Locations

Principal Investigator

Michael Jensen, MD

PRINCIPAL_INVESTIGATOR

Mayo Clinic

Study Locations (Sites)

Mayo Clinic in Rochester

Rochester, Minnesota, 55905

United States

Collaborators and Investigators

Sponsor: Mayo Clinic

Michael Jensen, MD, PRINCIPAL_INVESTIGATOR, Mayo Clinic

Study Record Dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Registration Dates

Study Start Date2024-05-01

Study Completion Date2028-06

Study Record Updates

Study Start Date2024-05-01

Study Completion Date2028-06

Terms related to this study

Additional Relevant MeSH Terms

Obesity