Effects on Colesevelam HC1 (WelChol®) on Insulin Sensitivity in Subjects With Type 2 Diabetes Mellitus

Type 2 Diabetes Mellitus Clinical Trial

Official title:

Effects on Colesevelam HC1 (WelChol®) on Insulin Sensitivity in Subjects With Type 2 Diabetes Mellitus

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT00361153
• Other study ID #: WEL-202
• Status: Completed
• Phase: Phase 2
• First received: August 3, 2006
• Last updated: June 24, 2008
• Start date: May 2006
• Est. completion date: March 2007

Study information

• Verified date: June 2008
• Source: Daiichi Sankyo Inc.
• Contact: n/a
• Is FDA regulated: No
• Health authority: United States: Food and Drug Administration
• Study type: Interventional

Clinical Trial Summary

This study is designed to test whether WelChol (colesevelam HC1) improves blood sugar control in patients with type 2 diabetes by making their own insulin work more efficiently.

Description:

Single-center, randomized, parallel, double-blind, placebo controlled, 8-week trial in subjects with type 2 diabetes mellitus. Two parallel treatment groups include double-blind colesevelam or placebo. A screening period may be up to 18 weeks to withdraw non sulfonylurea antidiabetic treatment or withdraw or adjust sulfonylurea antidiabetic treatment. To evaluate hepatic and peripheral insulin sensitivity, subjects will undergo a two-step hyperinsulinemic-euglycemic clamp with a tritiated glucose infusion at pre randomization and after 8 weeks of treatment. To evaluate oral glucose absorption, subjects will undergo two oral glucose tolerance tests (OGTT) at pre randomization, one without colesevelam and one with colesevelam, and one OGTT at the end of the treatment period..

Recruitment information / eligibility

• Status: Completed
• Enrollment: 35
• Est. completion date: March 2007
• Est. primary completion date: October 2006
• Accepts healthy volunteers: No
• Gender: Both
• Age group: 18 Years to 75 Years

Eligibility

Inclusion Criteria:

Subjects meeting the following criteria at the Screening Visit will be eligible to participate in the trial:

• Have given written informed consent

• Ages 18 to 75 years, inclusive

• Diagnosis of type 2 diabetes mellitus of at least 3 months duration

• HbA1C 7.0- 10.0%, inclusive

• Antidiabetic treatment may include oral agents; all antidiabetic agents must be withdrawn before randomization

• Women may be enrolled if they are not pregnant (negative serum ßHCG at the Screening Visit), are not breast-feeding, and do not plan to become pregnant during the trial. In addition, they must either have had a hysterectomy or tubal ligation at least 6 months before signing informed consent, be post-menopausal for 1 year, or practicing an acceptable method of birth control. An acceptable method of birth control may be oral, injectable or implantable hormonal contraceptives, intrauterine device, diaphragm plus spermicide, or female condom plus spermicide. Abstinence, partner's use of condoms, and partner's vasectomy are NOT acceptable methods of contraception

• BMI 25 - 45 kg/M sq, inclusive

Exclusion Criteria:

Subjects are excluded from participation in the study if any of the following criteria apply:

• Type 1 diabetes mellitus or history of diabetic ketoacidosis

• Treatment with lipid or blood pressure lowering therapy that has not been stable for three months before randomization

• Treatment with WelChol, cholestyramine or colestipol for hyperlipidemia within the last 3 months

• Treatment with thiazolidinediones

• History of dysphagia, swallowing disorders, or intestinal motility disorder

• Serum triglyceride >500 mg/dL at Visit 1

• Serum LDL-C <60 mg/dL at Visit 1

• Any condition or therapy which, in the opinion of the investigator, poses a risk to the subject or makes participation not in the subject's best interest

• Use of any investigational drug within 30 days before randomization

• Chronic treatment with oral corticosteroids

• History of hyperthyroidism and/or treatment with thyroid hormone/ levothyroxine

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator), Primary Purpose: Treatment

Related Conditions & MeSH terms

• Diabetes Mellitus
• Diabetes Mellitus, Type 2
• Type 2 Diabetes Mellitus

Intervention

Drug:
• Colesevelam hydrochloride
Welchol tablet 625mg
• placebo
placebo

Locations

Country	Name	City	State
United States	Diabetes and Glandular Research Associates	San Antonio	Texas

Sponsors (1)

Lead Sponsor	Collaborator
Daiichi Sankyo Inc.

Country where clinical trial is conducted

United States, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	To evaluate the effect of 8 weeks treatment with WelChol on insulin sensitivity,as measured by the hyperinsulinemic-euglycemic clamp method, i.e., placebo-corrected change from baseline in M-value.		8 weeks	No
Secondary	To evaluate the effect of 2 weeks treatment with WelChol on insulin sensitivity,as measured by the hyperinsulinemic-euglycemic clamp method.		2 weeks	No
Secondary	To evaluate acute and chronic effects of treatment with WelChol on plasma glucose after ingestion of a standard meal replacement.		8 weeks	No
Secondary	To evaluate the effect of treatment with WelChol on HbA1C, insulin, fasting plasma glucose, and fructosamine.		8 weeks	No