No Placebo Group
Every participant receives an active treatment — no one gets a placebo.
Healthy Volunteers Welcome
You do not need to have the condition being studied to take part.
Ready to participate?
Review the details below, then apply to join this clinical trial.
At a Glance
Age
40 and older
Sex
Any
Study type
Interventional
Purpose
Basic Science
Participants needed
84 (estimated)
Sponsor
University of Colorado, Boulder · Other
Who this trial is looking for
This trial is looking for adults aged 40 and older who are either underweight or overweight and have obesity. Participants will be evaluated for their fat tissue health and possible weight loss effects on blood vessel function.
Are You a Good Fit for This Trial?
You may be able to join if
I am 40 years old or older
I have a BMI between 25 and 40
I am willing to participate in weight loss activities
You may not be able to join if
I am a current smoker
I have had a heart attack, stroke, or cancer
I have stage III hypertension
I regularly do vigorous exercise
I am pregnant or breastfeeding
I have severe allergic reactions to certain medications
I take blood thinners or clotting medications
I am taking statin medication
Summarized in plain language from this trial's official eligibility criteria.
The full criteria are further down this page — only the research team can
confirm whether you qualify.
Think this trial could be right for you?
Answer three quick questions written from this study's own rules to see if you may qualify. No account needed to find out.
Changes in adipose tissue biology are now recognized as a key factor underlying the increased risk of metabolic and cardiovascular disease with obesity. Clinical interest in adipocyte-derived extracellular vesicles (Ad-EVs) has intensified due to their potential as circulating biomarkers of adipose tissue health and systemic messengers, regulators and mediators of cardiometabolic health and diseas…
Changes in adipose tissue biology are now recognized as a key factor underlying the increased risk of metabolic and cardiovascular disease with obesity. Clinical interest in adipocyte-derived extracellular vesicles (Ad-EVs) has intensified due to their potential as circulating biomarkers of adipose tissue health and systemic messengers, regulators and mediators of cardiometabolic health and disease with obesity.
The investigators hypothesize that elevated Ad-EVs in adults with obesity will be negatively associated with endothelium-dependent vasodilation. Furthermore, the investigators hypothesize that in adults with obesity, intentional weight loss-induced reduction in circulating Ad-EVs is associated with greater endothelium-dependent vasodilation.
Trial Locations
Loading…
Loading trial locations…
Facility
City
State
Country
Status
Eligibility Criteria
Inclusion criteria:
* Age ≥40 years
* BMI \<25 kg/m2 and BMI \>25 kg/m2 for Phase 1 and BMI \>25 kg/m2 for Phase 2. Rationale for defining obesity as BMI \>25 kg/m2
Exclusion criteria:
* Current smoker
* Chronic overt medical condition (e.g., evidence of coronary artery disease on resting ECG, an…
Inclusion criteria:
* Age ≥40 years
* BMI \<25 kg/m2 and BMI \>25 kg/m2 for Phase 1 and BMI \>25 kg/m2 for Phase 2. Rationale for defining obesity as BMI \>25 kg/m2
Exclusion criteria:
* Current smoker
* Chronic overt medical condition (e.g., evidence of coronary artery disease on resting ECG, any history of myocardial infarction or stroke, or cancer, diabetes based on fasting blood glucose concentration)
* Alcohol abuse or dependence defined as more than 14 standard drinks/week and no more than 4 standard drinks/day for men and 7 standard drinks/week and 3 standard drinks/day for women (a standard drink is defined as 12 ounces of beer, 5 ounces of wines, 1 ½ ounces of 80-proof distilled spirits) reported during the medical history/physical exam
* Stage III hypertension (systolic blood pressure \>160 mmHg and/or diastolic blood pressure \>100 mmHg)
* Regular vigorous aerobic/endurance exercise (\>3 bouts/week, \>30 minutes/bout at a workload \>6 METS)
* Women who are pregnant or breastfeeding
* History of anaphylaxis to betadine, lidocaine, iodine
* Raynaud's disease
* History of clotting disorders
* Anyone taking blood thinners and clotting medications
* Anyone taking statin medication
* Planned pregnancy in coming 4-6 months
Picking one helps us show the most relevant trials first.
Your results are loading in the background — you can
change this any time from the results page.
Set your location to continue
Find My Trials uses your location to surface clinical trials near you.
Add your city or zip code to your profile and try again.