Type 2 Diabetes Clinical Trial
Official title:
The Effect of A-lipoic Acid (ALA) on Fatty Acid-induced Impairment of Glucose-stimulated Insulin Secretion
Verified date | September 2012 |
Source | University Health Network, Toronto |
Contact | n/a |
Is FDA regulated | No |
Health authority | Canada: Ethics Review Committee |
Study type | Interventional |
Chronically elevated free fatty acids impair insulin sensitivity and insulin secretion (ie lipotoxicity) by a combination of oxidative stress, endoplasmic reticulum (ER) stress and inflammation. This study will test whether alpha-lipoic acid, which has potent antioxidant and anti-inflammatory properties, prevents or ameliorates lipotoxicity.
Status | Completed |
Enrollment | 15 |
Est. completion date | June 2011 |
Est. primary completion date | January 2011 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | Both |
Age group | 20 Years to 65 Years |
Eligibility |
Inclusion Criteria: Men and women aged 20-65 years: 1. Written informed consent obtained 2. Body mass index (BMI) > 27kg/m2 3. Glucose tolerance test may be normal or demonstrate impaired glucose tolerance but not frank diabetes 4. Hemoglobin above 130g/L Exclusion Criteria: 1. Subject has a history of hepatitis/hepatic disease that has been active within the previous two years 2. Any significant active (over the past 12 months) disease of the gastrointestinal, pulmonary, neurological, renal (Cr > 1.5 mg/dL) genitourinary, hematological systems, or has severe uncontrolled treated or untreated hypertension (sitting diastolic BP > 100 or systolic > 180) or proliferative retinopathy 3. Type 2 diabetes by history or OGTT 4. Any history of a MI or clinically significant, active, cardiovascular history including a history of arrhythmia's or conduction delays on ECG, unstable angina, or decompensated heart failure 5. Any laboratory values: AST > 2x ULN; ALT > 2x ULN; TSH > 6 mU/l 6. A history of multiple and/or severe allergies to drugs or foods or a history of severe anaphylactic reactions. History of hypersensitivity to heparin 7. Current addiction to alcohol or substances of abuse as determined by the investigator 8. Mental incapacity, unwillingness or language barrier precluding adequate understanding or cooperation 9. Any lipid lowering of hypoglycemic agents 10. Previous history of asthma 11. Will not donate blood three months prior to and three months post study procedures 12. Thrombocytopenia |
Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Crossover Assignment, Masking: Single Blind (Subject), Primary Purpose: Basic Science
Country | Name | City | State |
---|---|---|---|
Canada | Toronto General Hospital | Toronto | Ontario |
Lead Sponsor | Collaborator |
---|---|
University Health Network, Toronto | Canadian Diabetes Association |
Canada,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | insulin secretion and insulin sensitivity To determine whether ALA ameliorates or prevents impairment of insulin secretion and insulin sensi | 6 months | No | |
Secondary | To determine the role of oxidative stress and inflammation in the pathogenesis of lipotoxicity | 6 months | No |
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