CClinicalTrials.gg
CompletedNCT03436992Updated Feb 17, 2025Results posted

Estrogen and Diabetes

An interventional study of Antioxidant Cocktail and Resveratrol in Diabetes Mellitus, Type 1, sponsored by Augusta University. Completed at 2 sites in United States. Open to participants aged 18 Years to 40 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-02-17.

Sponsored by Augusta University · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
143
Allocation
Randomized
Ages
18 Years to 40 Years
Sex
All
01

Study summary

Diabetes has recently been referred to as "the epidemic of the 21st century". The reason why women with type 1 diabetes have a 2-3 fold greater risk of cardiovascular disease (CVD) compared to men with type 1 diabetes is unknown.The purpose of this study is to investigate whether or not estrogen contributes to vascular dysfunction in premenopausal women with diabetes.

02

Conditions studied

  • Diabetes Mellitus, Type 1

Keywords

  • Estrogen, Diabetes
03

Who can participate

Ages eligible
18 Years to 40 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Both men and premenopausal
  • Normal menstrual cycle interval of 25-35 days for at least 3 previous cycles
  • All races
  • Clinical diagnosis of insulin-dependent type 1 diabetes (patients only)

Exclusion criteria

Exclusion Criteria:

  • Clinical diagnosis of hepatic, cardiovascular, or renal disease
  • Uncontrolled Diabetes (HbA1c>9%)
  • Diabetic complications (i.e. macrovascular, microvascular, or autonomic)
  • Proteinuria
  • Uncontrolled Hypertension (>140/90 mmHg on therapy)
  • Hormonal use of birth control (past 3 months)
  • Pregnancy
  • Oligomenorrhea
  • Direct vasoactive medications (i.e. nitrates)
  • Anti-estrogens (i.e. SERMs)
  • Plycystic ovarian syndrome (defined by NIH guidelines-hyperandrogenic anovulation)
  • Undetectable Anti-Mullerian Hormone (AMH) following screening
04

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
143 participants (actual)

Study arms

  • Experimental
    Women with type 1 diabetes

    Women with type 1 diabetes will be randomly assigned to 1 of the 3 interventions (Antioxidant cocktail, Resveratrol, or placebo)

    Dietary Supplement: Antioxidant Cocktail · Dietary Supplement: Resveratrol · Other: Placebo

  • No intervention
    Healthy control women

    Healthy women who participate will receive no intervention and serve as controls.

  • Experimental
    Men with type 1 diabetes

    Men with type 1 diabetes will be randomly assigned to 1 of the 3 interventions (AOX cocktail, Resveratrol, or placebo)

    Dietary Supplement: Antioxidant Cocktail · Dietary Supplement: Resveratrol · Other: Placebo

Interventions

  • Dietary supplementAntioxidant Cocktail

    Vitamin C, Vitamin E, alpha lipoic acid

  • Dietary supplementResveratrol

    1500 mg trans-resveratrol

  • OtherPlacebo

    placebo

05

What researchers measure

Primary outcomes

  1. FMD/Shear

    Flow-Mediated Dilation (FMD) controlled for shear

    Time frame: ~ 2 weeks. Acquired at Menses and Late Follicular phase.

06

Results

Posted Feb 17, 2025

Participant flow

Participant flow — Overall Study
MilestoneT1M WomenControls
Started3225
Completed3225
Not completed00

Outcome measures

PrimaryFMD/Shear

Flow-Mediated Dilation (FMD) controlled for shear

Time frame:
~ 2 weeks. Acquired at Menses and Late Follicular phase.
Reported as:
Mean · %/s^-1
FMD/Shear
%/s^-1T1M WomenControls
Menses0.182 ± 0.0680.206 ± 0.100
Late Follicular0.155 ± 0.0590.219 ± 0.110

Adverse events

Collected over Baseline to Post testing (~2 weeks). Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
T1M Women0/32 (0%)0/32 (0%)0/32 (0%)
Controls0/25 (0%)0/25 (0%)0/25 (0%)

Baseline characteristics

Age, Continuous
Age, Continuous(years)T1M WomenControlsTotal
Mean25 ± 624 ± 625 ± 6
Sex: Female, Male
Sex: Female, Male(Participants)T1M WomenControlsTotal
Female322557
Male000
Race (NIH/OMB)
Race (NIH/OMB)(Participants)T1M WomenControlsTotal
American Indian or Alaska Native000
Asian000
Native Hawaiian or Other Pacific Islander000
Black or African American91120
White231437
More than one race000
Unknown or Not Reported000
Height
Height(cm)T1M WomenControlsTotal
Mean163.5 ± 7.0165.4 ± 5.8164.3 ± 6.5
Weight
Weight(kg)T1M WomenControlsTotal
Mean72.8 ± 17.668.4 ± 15.870.9 ± 16.8
BMI
BMI(kg/m^2)T1M WomenControlsTotal
Mean27.2 ± 5.724.5 ± 4.726.0 ± 5.4
MAP
MAP(mm Hg)T1M WomenControlsTotal
Mean87 ± 883 ± 785 ± 8
CRP
CRP(mg/L)T1M WomenControlsTotal
Mean5.4 ± 8.31.2 ± 1.33.6 ± 6.6

6 further baseline measures are reported on the registry.

07

Study locations

2 sites
  • Augusta University
    Augusta, Georgia 30912, United States
  • Georgia Prevention Institute
    Augusta, Georgia 30912, United States
08

References and documents

Study documents

  • Protocol and statistical analysis plan · Nov 14, 2022

Documents are hosted by the registry — open the source record to download them.

09

Registry details

Key details

Study ID
NCT03436992
Lead sponsor
Augusta University
Collaborators
National Heart, Lung, and Blood Institute (NHLBI)
Responsible party
Ryan Harris (Associate Professor, Augusta University) — Principal investigator
First posted
Feb 19, 2018
Start date
Apr 17, 2018
Primary completion
Sep 1, 2023
Completion
Dec 31, 2023
Results posted
Feb 17, 2025
Last update
Feb 17, 2025

Study contacts

Ryan Harris, PhD, CES
principal investigator · Augusta University

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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