Insulin Differences Between African-American and Caucasian Female Adolescents With Polycystic Ovary Syndrome (PCOS)
Differences in Insulin Secretion and Insulin Sensitivity/Resistance in African-American and Caucasian Adolescent Females With Polycystic Ovary Syndrome
1 other identifier
interventional
12
1 country
1
Brief Summary
The purpose of this research study is to see if there are differences between African-American and Caucasian girls with Polycystic Ovary Syndrome (PCOS) in how their bodies respond to a type of sugar, called glucose, the body's main source of energy. PCOS is one of the most common endocrine disorders among females. Features can include anovulation (eggs are not released from the ovaries) resulting in irregular menstrual periods, excessive amounts of androgenic (male) hormones resulting in acne and hirsutism (excessive hair growth on the face and body), and polycystic ovaries (small sac-like structures \[cysts\] on your ovaries) seen on ultrasound. Girls with PCOS also have higher levels of insulin in their bodies (called hyperinsulinism) but are not able to use insulin very well (called insulin resistance) resulting in an increased risk of diabetes. Diabetes is when you have high levels of glucose (sugar) in your blood. Many studies have looked at how bodies respond to glucose and have shown that compared to Caucasians, healthy African-Americans produce much more insulin (hyperinsulinism) but are not able to use it as well (insulin resistance) in childhood, adolescence, and adulthood. Insulin is a hormone that helps glucose move from the blood into the muscles for the body to use as energy. PCOS is associated with increased levels of insulin (hyperinsulinism) and not being able to use it as well (insulin resistance). So we want to see if there is a difference in insulin production (secretion) and insulin resistance between African-Americans and Caucasians girls with PCOS. To do this, we will look at blood glucose and insulin levels in response to giving glucose in African-American and Caucasian girls who have PCOS. The results of this study may ultimately help to more effectively target treatment therapy in individuals with PCOS that have increased insulin secretion and/or increased insulin resistance.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable
Started Jan 2014
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
January 1, 2014
CompletedFirst Submitted
Initial submission to the registry
January 29, 2014
CompletedFirst Posted
Study publicly available on registry
February 3, 2014
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 1, 2015
CompletedStudy Completion
Last participant's last visit for all outcomes
June 1, 2015
CompletedOctober 7, 2019
October 1, 2019
1.4 years
January 29, 2014
October 3, 2019
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Insulin Secretion
The objective of this study is to examine the differences in insulin secretion between AA and CA adolescents with PCOS. Primary Aim: To determine the influence of racial/ethnic background on insulin secretion in adolescent females with PCOS.
-10, 0, 2, 4, 6, 8, 12, 14, 16, 19, 22, 27, 32, 42, 52, 62, 72, 82, and 92 minutes
Secondary Outcomes (1)
Insulin Sensitivity/Resistance
-10, 0, 2, 4, 6, 8, 12, 14, 16, 19, 22, 27, 32, 42, 52, 62, 72, 82, and 92 minutes
Other Outcomes (1)
Exploratory Analysis
-10, 0, 2, 4, 6, 8, 12, 14, 16, 19, 22, 27, 32, 42, 52, 62, 72, 82, and 92 minutes
Study Arms (2)
Polycystic Ovary Synrome, PCOS, Caucasian, No treatment
OTHERFrequently Sampled Intravenous Glucose Tolerance Test with minimal model analysis (MINMOD FSIVGTT)
Polycystic Ovary Synrome, PCOS, African-American, No treatment
OTHERFrequently Sampled Intravenous Glucose Tolerance Test with minimal model analysis (MINMOD FSIVGTT)
Interventions
Eligibility Criteria
You may qualify if:
- Children and adolescents ages 12-18 years
- African-American and Caucasian females
- Menarchal for at least 2 years
- Hemoglobin A1C \<6.5%
- Medical Condition: Polycystic Ovary Syndrome (PCOS) - based on AES criteria: HA in addition to ANOV and/or PCO
- Hyperandrogenism (required): Serum Testosterone \> 50 ng/dl or Free Testosterone (%) \> 1.4% or Free Testosterone \> 7 pg/mL
- Oligo- and/or Anovulation: menstrual cycles lengths \> 35 days and/or \< 8 menstrual cycles a year
- Polycystic Ovaries: transabdominal or trans-vaginal ultrasound finding of 12 or more follicles measuring 2-6 mm in diameter or increased ovarian volume (\> 10 mL)
- Medications: Medication-naive to treatment therapy with Metformin, Oral Contraceptives, and Anti-androgen medications
You may not qualify if:
- Ages \<12 or \>18
- Prepubertal, Premenarche
- Hemoglobin A1C ≥6.5%
- Medical Conditions: Hypothyroidism, Hyperthyroidism, Diabetes Mellitus, Congenital Adrenal Hyperplasia, Hyperprolactinemia, Pregnancy
- Medications: Past and/or Present treatment therapy with Metformin, Oral Contraceptives, Anti-androgen medications, Insulin or oral hypoglycemic agents
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Clinical Research Center at The Ohio University Wexner Medical Center / Nationwide Children's Hospital
Columbus, Ohio, 43205, United States
Related Links
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- DIAGNOSTIC
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Pediatric Endocrinology Fellow
Study Record Dates
First Submitted
January 29, 2014
First Posted
February 3, 2014
Study Start
January 1, 2014
Primary Completion
June 1, 2015
Study Completion
June 1, 2015
Last Updated
October 7, 2019
Record last verified: 2019-10