A 30 Day Acute Efficacy and Safety Study of Chromium Picolinate + Biotin on Glycemic Control in Overweight or Obese Subjects With T2DM

NCT ID: NCT00308451

Last Updated: 2006-03-29

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

40 participants

Study Classification

INTERVENTIONAL

Study Start Date

2003-11-30

Study Completion Date

2004-04-30

Brief Summary

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The purpose of the proposed work is to assess the effects of a dietary supplement, containing chromium (600 mcg per day) provided by chromium picolinate and biotin (2 mg per day) on glycemic control in type 2 diabetes. Specifically, this study will assess whether use of the supplement will lower the post-prandial rise in blood glucose experienced after ingestion of a 75g carbohydrate load, relative to placebo, in type 2 diabetic patients. The study will also assess the chronic effects of supplementation over a 4-week period (relative to placebo) on fasting plasma levels of glucose, insulin, lipids and lipoproteins.

Detailed Description

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The purpose of this work is to assess the effects of a dietary supplement, containing chromium (600 mcg per day) provided by chromium picolinate and biotin (2 mg per day) on glycemic control in type 2 diabetes who are currently taking an oral antidiabetic agent (OAD) and failing therapy with OADs. Subjects entering the trial must have a HbA1c \>/= 7.0% and have an OGTT \>/= 200 mg/dL at 2 hours post consumption of a 75 g glucose beverage. The study is an acute 30 day intervention in conjunction with the subject's current OADs and standard of care in comparison to placebo.

Specifically, this study will assess whether use of the supplement will lower the post-prandial rise in blood glucose experienced after ingestion of a 75g carbohydrate load, relative to placebo, in type 2 diabetic patients as measured by the area under the curve for glucose (AUCg). The study will also assess the acute effects of supplementation over a 4-week period (relative to placebo) on fasting plasma levels of glucose, fructosamine, insulin, lipids and lipoproteins.

Conditions

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Diabetes Mellitus, Type 2

Keywords

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chromium chromium picolinate type 2 diabetes mellitus fructosamine glycemic control OGTT

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Interventions

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Chromium Picolinate (600 mcg Cr+3) + biotin (2 mg)

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

1. Diagnosis of type 2 diabetes \> 12 months.
2. Post-prandial blood glucose (glucose \> 200 mg/dl) levels consistent with an ADA diagnosis of diabetes as confirmed during the screening visit.
3. Male and female between the ages of 18 and 65 years.
4. HbA1c \> 7.0%.
5. Use of treatment regimens including diet and exercise and/or drug therapy for diabetes are allowed. Drug therapy may include alpha-glucosidase inhibitors (e.g. acarbose, voglibose, miglitol) and oral hypoglycemic agents such as sulfonylureas and metformin and thiazolidinediones (TZDs). Insulin use is not allowable
6. No changes in medication dosage within 60 days prior to entering trial.
7. Subjects with a body mass index (BMI) \>25 and \< 35.
8. Fasting triglycerides \< 400. \[32\]
9. Willing to complete all study related requirements.
10. Subject will provide written consent to participate in the trial and this consent must be given voluntarily.

Exclusion Criteria

1. Diagnosis of type I diabetes.
2. Hypoglycemic event requiring EMS intervention \< 12 months.
3. Diabetic Ketoacidosis (DKA) \< 12 months.
4. Subjects taking any supplement containing chromium within the previous 90 days prior toenrollment.
5. Creatinine \> 2.0 x ULN; AST or ALT \> 2.0 x ULN; Total Bilirubin \> 1.5 x ULN.
6. COPD, CHF, Angina, HTN, MI, or any other CVD requiring hospitalization within the previous 12 months.
7. History of cerebrovascular accident (CVA), pulmonary embolism (PE), or an unresolved deep vein thrombosis (DVT).
8. History of CABG, PTCA, or any other reperfusion therapy \< 12 months.
9. Uncontrolled high blood pressure (seated: systolic \> 160 mmHg or diastolic \> 90 mmHg)
10. History of any serious immunosuppressive disorder or undergoing current immunosuppressive therapy.
11. Female subjects who are pregnant or nursing, or are planning on becoming pregnant during the study. No hormone replacement therapy for post-menopausal subjects.
12. Hepatic disease, impaired thyroid, or impaired renal function, or other diseases known to affect glucose or lipid metabolism. TSH must be within range of normality to enter trial.
13. Diagnosed or self-reported alcoholism or substance-abuse problems
14. Any psychiatric or mental health issue that would prevent the subject from completing the study
15. Any illness or complication factor that, in the opinion of the investigator, would jeopardize the subject's health or well being by participating in the study or would interfere with the subject successfully completing the study.
16. Current participation in any other clinical research trial for any product or device, or participation in said clinical trials within 30 days prior to enrollment.
Minimum Eligible Age

18 Years

Maximum Eligible Age

70 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Nutrition 21, Inc.

INDUSTRY

Sponsor Role lead

Principal Investigators

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Jeffery Geohas, MD

Role: PRINCIPAL_INVESTIGATOR

Radiant Research - Chicago

Locations

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Radiant Research Chicago

Chicago, Illinois, United States

Site Status

Countries

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United States

Other Identifiers

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N21 CPB-03001

Identifier Type: -

Identifier Source: org_study_id