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Alpha Lipoic Acid and Polycystic Ovary Syndrome

This study has been completed.
National Institutes of Health (NIH)
Information provided by (Responsible Party):
University of California, San Francisco Identifier:
First received: July 20, 2007
Last updated: June 28, 2013
Last verified: June 2013

The study will recruit 40 subjects with Polycystic Ovary Syndrome (PCOS) as defined by the NIH criteria. The subjects will be pre-screened for insulin sensitivity using fasting insulin and glucose levels and oral glucose tolerance test. The 20 most insulin resistant subjects will undergo measurements of in vivo insulin action by hyperinsulinemic, euglycemic clamp. Body composition will be measured by dual-energy X-ray absorptiometry (DEXA). Plasma lipids and markers of oxidative stress will be measured. They will then receive open label controlled release alpha lipoic acid (CRLA) at 800 mg twice daily for 16 weeks. After treatment hyperinsulinemic euglycemic clamps, DEXA, plasma lipids and markers of oxidative stress will be repeated.

Hypotheses: LA will improve insulin sensitivity in PCOS subjects; LA will reduce oxidative stress, testosterone levels and improve cardiovascular risk factors.

Condition Intervention Phase
Insulin Resistance
Oxidative Stress
Dietary Supplement: Alpha Lipoic Acid
Phase 1

Study Type: Interventional
Study Design: Allocation: Non-Randomized
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: Alpha Lipoic Acid and Polycystic Ovary Syndrome

Resource links provided by NLM:

Further study details as provided by University of California, San Francisco:

Enrollment: 22
Study Start Date: March 2006
Study Completion Date: July 2010
Primary Completion Date: July 2010 (Final data collection date for primary outcome measure)
Detailed Description:
Insulin resistance commonly occurs in patients with Polycystic Ovary Syndrome (PCOS) and may be responsible for many of the long term complications of PCOS. Patients with PCOS are at increased risk for developing type 2 diabetes and the metabolic syndrome (hypertension, dyslipidemia and cardiovascular disease). Data suggest that oxidative stress contributes to insulin resistance and thus inhibitors of oxidative stress improve insulin action. Alpha Lipoic Acid (LA) is synthesized in the liver and other tissues and is a key component of several mitochondrial enzyme complexes responsible for oxidative glucose metabolism and cellular energy production. When used pharmacologically, LA functions as a safe and effective antioxidant, recycling vitamins C and E,elevating glutathione levels,and lowering reactive oxygen species. Cell culture studies reveal that LA reverses the effects of oxidative stress and improving insulin action. Preliminary clinical data indicate that antioxidants may improve insulin resistance in PCOS patients. We propose, therefore, to study LA's effects on insulin-stimulated glucose uptake (insulin clamp) in a well characterized population of insulin resistant PCOS patients. Because these patients usually present in the adolescent and teenage years, the development of safe, long-term, treatment strategies are needed.

Ages Eligible for Study:   18 Years to 50 Years   (Adult)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • PCOS diagnosis
  • 18 years of age or older
  • Body Mass Index below 35
  • Willing to use any form of contraception for the duration of the study

Exclusion Criteria:

  • Diabetes
  • Pregnancy
  • Liver or heart disease or other health problems
  • Taking medications that affect insulin resistance
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Please refer to this study by its identifier: NCT00505427

United States, California
University of California at San Francisco
San Francisco, California, United States, 94143
Sponsors and Collaborators
University of California, San Francisco
National Institutes of Health (NIH)
Principal Investigator: Umesh Masharani, MD University of California, San Francisco
Principal Investigator: Ira Goldfine, MD University of California, San Francisco
  More Information

Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: University of California, San Francisco Identifier: NCT00505427     History of Changes
Other Study ID Numbers: 8476-27691-01
Study First Received: July 20, 2007
Last Updated: June 28, 2013

Keywords provided by University of California, San Francisco:
polycystic ovary syndrome
polycystic ovarian syndrome
alpha lipoic acid
insulin resistance
oxidative stress

Additional relevant MeSH terms:
Insulin Resistance
Polycystic Ovary Syndrome
Pathologic Processes
Glucose Metabolism Disorders
Metabolic Diseases
Ovarian Cysts
Ovarian Diseases
Adnexal Diseases
Genital Diseases, Female
Gonadal Disorders
Endocrine System Diseases
Thioctic Acid
Molecular Mechanisms of Pharmacological Action
Protective Agents
Physiological Effects of Drugs
Vitamin B Complex
Growth Substances processed this record on March 24, 2017