Can shedding pounds slow down aging at the cellular level?
NCT ID NCT05903521
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at whether weight-loss surgery can lengthen telomeres, which are caps on our DNA that shorten as we age. Researchers compared telomere length in people with severe obesity who had surgery versus those who did not. The goal was to see if rapid weight loss might reverse some signs of biological aging.
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Study facts
What this study's own registry entry says, in plain language.
- Participants
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120 people
The number who actually took part.
- Started
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Jun 2023
- Finished
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Jan 2025
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
The population will be divided in two groups; the control group (with obesity) and the treatment group (after Sleeve Gastrectomy or Roux-en-Y Gastric Bypass).
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * BMI ≥ 35 kg/m2 without previous bariatric surgery (control group) OR * Having had Sleeve Gastrectomy or Roux-en-Y Gastric Bypass more than 12 months ago and without a weight regain of ≥ 15% of nadir weight (treatment group) Exclusion Criteria: * under 18 years of age * no informed consent
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Cleveland Clinic Florida
Weston, Florida, 33331, United States
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Other studies related to the condition(s) this trial covers.
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