Purpose

Inhibitors of the sodium-glucose co-transporter (SGLT2) are FDA-approved for the treatment of type 2 diabetes (T2DM). Their mechanism of action involves lowering of blood glucose concentration secondary to increased glucose excretion of glucose by the kidney. These drugs also improve body weight, blood pressure, and cardiac function. Based on these pleiotropic effects, including its calorie restriction-mimetic properties, the study team hypothesize that SGLT2 drugs will impact several basic aging-related processes, including reductions in oxidative damage to DNA and proteins, advanced glycation end products (AGE) and receptor for AGE (RAGE), cellular senescence, and mitochondrial function.

Condition

Eligibility

Eligible Ages
Over 60 Years
Eligible Genders
All
Accepts Healthy Volunteers
Yes

Inclusion Criteria

  1. Men or post-menopausal women.
  2. Age= 60+ years.
  3. All ethnic groups.
  4. Body Mass index (BMI) between 30-37 kg/m2.
  5. Diagnosis of pre-diabetes (HbA1c 5.7-6.4% and 2 hr. Oral Glucose Tolerance Test (OGTT) glucose between 140-199 mg/dL, evaluated at Visit 1 and 2).
  6. Stable body weight (±3% for ≥3 months).
  7. Willing to adhere to medication regimen for three months.
  8. Montreal Cognitive Assessment score ≥21

Exclusion Criteria

  1. Diagnosis of diabetes based on American Diabetes Association (ADA) criteria
  2. Impaired renal function with estimated Glomerular Filtration Rate (eGFR) < 45 mL/min/1.73m2 .
  3. Impaired liver function with labs ≥3 times upper limits of normal range
  4. Abnormal hematocrit with lower limits of ≤30%
  5. Abnormal triglycerides with upper limits ≥600 mg/dL
  6. Abnormal Thyroid stimulating hormone (TSH) values ≤0.3 and ≥10
  7. Urinalysis results with ˃ 5-10 white blood cell count
  8. Concomitant medications known to affect glucose and lipid homeostasis (anti-diabetes medications, glucocorticoids, atypical antipsychotics, anti-transplant rejection medications, anti-retrovirals).
  9. Current treatment with anticoagulants (warfarin). Aspirin (up to 325 mg) and clopidogrel will be permitted if these can be held for seven days prior to the biopsies.
  10. History of recent cardiovascular event in the last 6 months or Heart Failure (New York Heart Classification greater than class III-IV; recent EKG changes that suggest active heart disease
  11. Poorly controlled blood pressure (systolic BP>180, diastolic BP>100 mmHg).
  12. Active inflammatory, autoimmune, infectious, hepatic, gastrointestinal, malignant, and uncontrolled psychiatric disease (Subjects with depression, anxiety, PTSD, etc. can enroll if controlled and on stable medication)

Study Design

Phase
Phase 1/Phase 2
Study Type
Interventional
Allocation
Randomized
Intervention Model
Parallel Assignment
Intervention Model Description
20 completed subjects are planned. Each subject will be randomized to either the experimental group of dapagliflozin 10mg daily for 12 weeks or the control group of nutritional counseling for weight loss.
Primary Purpose
Basic Science
Masking
None (Open Label)

Arm Groups

ArmDescriptionAssigned Intervention
Experimental
Dapagliflozin
10 participants with pre-diabetes will be randomized to the experimental group to receive dapagliflozin 10mg by mouth daily for 12 weeks.
  • Drug: Dapagliflozin 10 mg
    10 participants randomized to receive 12 weeks of daily dapagliflozin 10mg by mouth
    Other names:
    • Farxiga
Other
Nutritional Counseling
10 participants with pre-diabetes will be randomized to receive nutritional counseling weekly for 12 weeks
  • Behavioral: Nutritional counseling
    10 participants randomized to receive 12 weeks of weekly counseling on nutrition

Recruiting Locations

University of Texas Health Science Center at San Antonio
San Antonio, Texas 78229
Contact:
Carolina Solis-Herrera, MD
210-567-6691
solisherrera@uthscsa.edu

Texas Diabetes Institute - University Health System
San Antonio, Texas 78207
Contact:
Carolina Solis-Herrera, MD
210-358-7200
solisherrera@uthscsa.edu

More Details

Status
Recruiting
Sponsor
The University of Texas Health Science Center at San Antonio

Study Contact

Carolina Solis-Herrera, MD
210-567-6691
solisherrera@uthscsa.edu

Detailed Description

Investigations into the aging process have identified major cellular dysfunctions that contribute to aging, including but not limited to increased burden of damaged DNA and protein, reduction in mitochondrial respiration, and the development of pro-inflammatory senescent cells. Developing and testing interventions that interact with multiple points of this spectrum may delay the aging process. Based on prior investigations, the study team believe the SGLT2 inhibitor class of drugs may target these basic mechanisms involved in the aging process and propose testing in a high-risk human population to evaluate their effectiveness in ameliorating aging-associated dysfunctions. Specifically, the investigators hypothesize that SGLT2i drugs will lead to reductions in oxidative damage to DNA and proteins, AGE-RAGE, and cellular senescence, which will be accompanied by improvements in mitochondrial function. If the hypothesis is correct, these findings could lead to the development of new approaches to increase both health-span and lifespan.

This is a single center, open-label, randomized controlled trial. The target enrollment for this pilot study is 20 completed subjects, split evenly between experimental and control groups. Each subject will be randomized to either the experimental group of dapagliflozin 10mg daily for 12 weeks or the control group of nutritional counseling for weight loss. Health-span and clinical evaluations will be taken at baseline and at weeks 10-12 of the study.

Notice

Study information shown on this site is derived from ClinicalTrials.gov (a public registry operated by the National Institutes of Health). The listing of studies provided is not certain to be all studies for which you might be eligible. Furthermore, study eligibility requirements can be difficult to understand and may change over time, so it is wise to speak with your medical care provider and individual research study teams when making decisions related to participation.