Prevalence of Hyperandrogenism in Type 1 Diabetes

CompletedOBSERVATIONAL
Enrollment

150

Participants

Timeline

Start Date

March 9, 2020

Primary Completion Date

December 30, 2024

Study Completion Date

December 30, 2024

Conditions
Type 1 DiabetesPolycystic Ovary SyndromeHyperandrogenismHirsutismOligomenorrheaOvulation Disorder
Interventions
OTHER

Clinical hyperandrogenism assessment

Modified Ferriman-Gallwey scale

DIAGNOSTIC_TEST

Total testosterone (ng/dL)

Circulating total testosterone (LC-MS/MS or IQL-CDC method) at follicular phase

DIAGNOSTIC_TEST

A1c (%)

High Performance Liquid Chromatography (HPLC)

DIAGNOSTIC_TEST

Total cholesterol

Determined by enzymatic methods

OTHER

Body mass index (BMI) (kg/m2)

Defined as body weight divided by the square of body height, and expressed in kg/m2

DIAGNOSTIC_TEST

Frequency of chronic vascular complications [n (%)]

Retinopathy, nephropathy, neuropathy, and macrovascular disease.

DIAGNOSTIC_TEST

Polycystic ovary morphology

Sonographic assessment

DIAGNOSTIC_TEST

Cardiovascular autonomic reflex tests (CARTs)

Cardioautonomic function assessement by Vital scan HW7-HW6T:

DIAGNOSTIC_TEST

Sex hormone-binding globulin (SHBG) (nmol/L)

Circulating SHBG (IQL) at follicular phase

DIAGNOSTIC_TEST

Dehydroepiandrosterone-sulphate (IQL) (ng/mL)

Circulating DHEAS (IQL) at follicular phase

OTHER

Waist circumference (cm)

Waist circumference measurement made at the top of the iliac crest

OTHER

Waist-to-hip ratio

Waist circumference divided by hip circumference (measurement should be taken around the widest portion of the buttocks)

OTHER

Body composition

Vital Scan HW7-HW6T

DIAGNOSTIC_TEST

Mean glucose (mg/dL)

Continuous glucose monitoring (GCM) records

DIAGNOSTIC_TEST

Time in target range (hours)

Continuous glucose monitoring (GCM) records

DIAGNOSTIC_TEST

Time in hyperglycemia (hours)

Continuous glucose monitoring (GCM) records

OTHER

Insulin dose (UI/Kg)

Daily insulin dose divided by body weight

OTHER

Insulin sensitivity

Equation that relies on routine clinical measures: A1c, presence of hypertension, and waist circumference

DIAGNOSTIC_TEST

High-density lipoprotein (HDL) (mg/dL)

Enzymatic methods after precipitation of serum with phosphotungstic acid and Mg2+

DIAGNOSTIC_TEST

Low-density lipoprotein (LDL) (mg/dL)

Estimated by the Friedewald's equation.

DIAGNOSTIC_TEST

Triglycerides (mg/dL)

Determined by enzymatic methods

Trial Locations (1)

28034

Hospital Universitario Ramón y Cajal, Madrid

All Listed Sponsors
collaborator

Hospital Universitario Ramon y Cajal

OTHER

collaborator

Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders

OTHER

collaborator

University of Alcala

OTHER

collaborator

Instituto de Salud Carlos III

OTHER_GOV

lead

Fundacion para la Investigacion Biomedica del Hospital Universitario Ramon y Cajal

OTHER

NCT04979377 - Prevalence of Hyperandrogenism in Type 1 Diabetes | Biotech Hunter | Biotech Hunter