Regional Lipolysis and Adipocyte Lipolysis Protein Stimulation
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: Somatostatin, Epinephrine.
- Who it may be relevant to
- Registry conditions: Obesity. Basic parameters: 18 years — 65 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- United States
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
Unsure about the terms? Read our patient guide →
Official title
Stimulation of Regional Lipolysis and Adipocyte Lipolysis Proteins
Overview
Adults who gain most of their excess weight in the abdominal area typically do not respond to factors that "turn on" fat cells the same way as people who don't have excessive weight. Researchers are trying to understand why fat tissue responds differently in people with different body types.
Interventions
- Drug Somatostatin
Intravenous infusion 200 ug/hr for 2 hours, 100 ug/hr for 30 minutes - Drug Epinephrine
Intravenous infusion
Primary outcome measures
- Free Fatty Acid (FFA) release from femoral, splanchnic and upper body subcutaneous adipose tissue [Time frame: approximately 3.5 hours]
- stimulated FFA release in volunteers with and without obesity. [Time frame: approximately 3.5 hours]
Secondary outcome measures (1)
- Role of reesterification in adipose tissue FFA release [Time frame: approximately 3.5 hours]
Eligibility criteria
Inclusion criteria
- Males and females between 18 and 65 years of age who are able to comprehend instructions, follow study procedures, willing to sign an informed consent form, and consume an isoenergetic diet eating all meals from Mayo Clinical Research and Trials Unit for at least 3 days prior to study.
- Overweight/Obese volunteers will have a BMI 29.0 - 40.0 kg/m2
o 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 adenosine triphosphate (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 > 120 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 ATP III criterial. These visceral fat values are based upon the data collected at Mayo Clinic using our methods, and are correlated with dyslipidemia and hyperinsulinemia.
- 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 within 48 hours before administering study drug.
- Recent or current research participation in a study that involves an investigational drug. Participants in other clinical trials that involve an investigational drug will not be able to participate in this study until 12 weeks after their participation in the other study is complete or > than five half-lives of the compound, whichever is longer. If Yes look at consent form and f/u visits:
- Current use of medications that alter fatty acid or adipose metabolism possibly given: if yes, exclude
- Amount of blood drawn during the study (if our study plus this one draw ≥ 450 ml these should be separated by 8 weeks
- Previous labs:
- Fasting glucose < 126 mg/dl for non-diabetic UBO
- Hb ≥ 11.0 for women and ≥ 12 for men
- platelets > 100 000
Exclusion criteria
- 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
- Peripheral artery disease
- Any history of trans-ischemic attacks.
- Coronary artery disease.
- Liver cirrhosis
- Significant renal impairment as documented in medical chart.
- Smokers
- Diagnosis of Diabetes Mellitus.
- Concomitant use of medications that can alter free fatty acid metabolism or pose a drug-drug interaction: statins (if yes hold for 4 weeks and receive primary care provider's approval); Niacin; Fibrates; thiazolidinedione; Beta-blockers; Oral or injected corticosteroids or anabolic steroids; Linezolid; Dihydroergotamine; Phenelzine; daily phosphodiesterase inhibitors
- Allergy to lidocaine
- Allergy to indocyanine green.
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: Yes
Study design
- Allocation
- Non-randomized
- Model
- Parallel assignment
- Masking
- Open label
- Primary purpose
- Basic science
Study locations
United States · 1 center
- Mayo Clinic in Rochester — Rochester
Identifiers
NCT: NCT06416969 · 23-004069 · R01DK040484