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ObesityNCT04865965

Effects of a Single Bout of Exercise on Transcriptomics and Metabolomics in Adipose Tissue

A study testing Acute Bout of Exercise in people with Obesity and Metabolic Complication, run by Joslin Diabetes Center at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to determine the effects of a single bout of exercise on changes in the genes and small molecules in blood and fat tissue, before and after a bout of exercise. This research may contribute to a better understanding of the beneficial effects of exercise on the body. Read more about this study

Who is it for?
Ages 20 to 60 yearsHealthy volunteers can take part
Conditions the study is for
Obesity, Metabolic Complication
What is being tested?
Acute Bout of Exercise
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
16 participants
Where
1 siteUnited States
Study dates
27 May 2021to 23 May 2024
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 20 to 60 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Age 20-60 years
  • Body mass index (BMI) ≥30.0 ± 0.1 and ≤40.0 ± 0.1 kg/m2
  • HbA1c ≤ 5.7 ± 0.1%
  • No history of diabetes (type 1 and type 2)
  • In good general health with no conditions that could influence the outcome of the trial, and in the judgment of the investigator is a good candidate for the study based on review of available medical history, physical examination and clinical laboratory evaluations
  • Willing to adhere to the protocol requirements for the duration of the study

Who cannot join

  • Exercises frequently i.e. ≥ 150 minutes per week of moderate intensity or ≥ 75 min high intensity.
  • Blood glucose rises ≥140mg/dl at 2 hours after OGTT on Visit 1
  • Use of weight loss medications (i.e. GLP-1 agonists)
  • Use of any medications related to diabetes
  • Use of beta-blockers
  • Use of anticoagulation and aspirin
Show all 15Show fewer
  • Use of agents that affect hepatic glucose production such as beta adrenergic agonists, xanthine derivatives
  • Currently pregnant or breastfeeding
  • Current smoker
  • Heart or lung disease
  • Acute infection, including COVID-19 (current or recent infection of COVID-19 in the previous 3 months)
  • Any hospitalization due to COVID-19.
  • Severe hypertension (systolic >160 mmHg or diastolic >90 mmHg)
  • Inability to exercise for any reason
  • Any known contraindication to exercise testing based on current ACSM guidelines (5)

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Joslin Diabetes Center

    Boston, Massachusetts, 02215

Other trials in United States

About this study

The purpose of this study is to determine the effects of a single bout of exercise on changes in the genes and small molecules in blood and fat tissue, before and after a bout of exercise. This research may contribute to a better understanding of the beneficial effects of exercise on the body.

Read the detailed description

The national and international prevalence of both obesity and type 2 diabetes has risen dramatically over the last few decades, increasing the need for new therapies to treat these conditions. An established treatment for type 2 diabetes and obesity are regular physical activity and exercise. It has been shown that one single session of exercise can lead to adaptations in the blood and in tissues that improve systemic homeostasis overtime; while acute changes in skeletal muscle also play a critical role in these effects, changes in the adipose tissue and in the peripheral mononuclear cells (PBMCs) that may also contribute to this improvement. However, the beneficial effects of exercise on metabolism through these other tissues have not been intensively investigated.

The investigators hypothesize that a single session of exercise will result in changes to white adipose tissue, including changes in metabolites and gene expression, as well as changes in PBMCs, and that these adaptations may play an important role to improve metabolic homeostasis.

This hypothesis stems from the investigator's animal-based studies, which have led to the exciting discoveries that 1) exercise training-induced adaptations to subcutaneous white adipose tissue (scWAT) result in significant improvements in whole-body glucose tolerance and insulin sensitivity (1), and 2) the mechanism for this effect may be due to auto-, para-, or endocrine effects of novel exercise-induced circulating factors coming from adipose tissue. Thus, being able to further understand, and potentially mimick, these exercise-induced changes to scWAT could lead to novel therapies for obesity and type 2 diabetes.

Given the great interest in exercise mimetics as treatments for diabetes and obesity, it is essential to determine if a single session of exercise alters metabolites as well as gene expression in the scWAT in human subjects with obesity. To determine if a single session of exercise leads to changes in PBMCs, PBMC transcriptomics will be analyzed. This analysis will determine how exercise affects the number of specific cell types in the blood that can regulate metabolic health.

Being tested
Acute Bout of Exercise
Keywords
adipose tissue transcriptomics, adipose tissue metabolomics, peripheral blood mononuclear cell transcriptomics, obesity, exercise
Medical subject headings
Obesity, Motor Activity

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Acute Bout of ExerciseProcedure or surgery

    Exercising for 60 minutes at 55-60% of VO₂ peak

Study groups in NCT04865965
Study groupRoleWhat they receive
Acute Bout of ExerciseExperimentalExercising for 60 minutes at 55-60% of VO₂ peak
Receives: Procedure: Acute Bout of Exercise
No ExerciseNo interventionNo Exercise Session

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Transcriptome in white adipose tissue

    Gene transcription changes in RNA-based expression within subcutaneous adipose tissue

    Measured: Baseline; 2 hours

  2. Metabolome in fat

    Changes in concentration of metabolites within subcutaneous adipose tissue

    Measured: Baseline; 2 hours

Secondary outcomes (1)
  1. Transcriptomic changes in peripheral blood mononuclear cell in people with obesity

    Gene transcription changes in RNA-based expression within peripheral blood mononuclear cells

    Measured: Baseline; 2 hours

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted29 Apr 2021
  2. Study start27 May 2021
  3. Primary completion23 May 2024
  4. Study completion23 May 2024

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
16 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04865965
Sponsor's protocol ID
STUDY00000139
Status last verified
Feb 2025
First submitted
13 Apr 2021
Last updated
24 Feb 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A study testing Acute Bout of Exercise in people with Obesity and Metabolic Complication, run by Joslin Diabetes Center at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 15 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 24 Feb 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Transcriptome in white adipose tissue (time frame: Baseline; 2 hours). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 24 Feb 2025.

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