Clinical trial NCT00686712: Insulin Glargine at Bedtime or in AM Versus NPH
Official title: The Utility of Insulin Glargine (Lantus) Compared to NPH in Ethnic Minority Type 2 Diabetic Subjects Starting Insulin Therapy
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: PHASE4
Conditions: Type 2 Diabetes Mellitus
Keywords: Glargine
Type 2 diabetes
Basal insulin
Lead sponsor: Charles Drew University of Medicine and Science
Sponsor class: OTHER
Collaborators: name: National Center for Research Resources (NCRR)
First posted: 2008-05-30
Enrollment: 108
Sex: ALL
Minimum age (years): 18
Maximum age (years): 75
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: TREATMENT

Brief summary: To compare the efficacy and safety of once-nightly insulin glargine versus a single morning injection of glargine or once-nightly NPH insulin in ethnic minority type 2 diabetic patients inadequately controlled on combination oral agents.

Detailed description: Insulin glargine has a longer action than compared to NPH insulin, but whether this results in improved control when used as a once-nightly or morning basal insulin injection in type 2 diabetic patients who are inadequately controlled on combination oral agents has been controversial. Inner city ethnic minority patients with diabetes are a particularly challenging population of diabetic patients to treat. This study investigates whether insulin glargine may be a more effective or safer first-line basal insulin than NPH in this population.

Eligibility criteria: Inclusion Criteria:

* Male or female, age 18-75
* Type 2 diabetes diagnosed for at least 1 year
* Treatment with stable doses of oral agents (alone or in combination) for at least 2 months
* Inadequate glycemic control (hemoglobin A1c ≥ 7.5%) on maximum-tolerated doses of a sulfonylurea, metformin and a thiazolidinedione
* No past history of chronic insulin use (other than treatment of gestational diabetes or hospitalizations of less than 1 week in duration)
* Hemoglobin A1c between 7.5% and 12%
* Body mass index (BMI) between 20 and 40 kg/m2

Exclusion Criteria:

* Current or previous chronic use of insulin (other than for treatment of gestational diabetes)
* History of confirmed (or clinical suspicion of) type 1 diabetes
* Female subjects of childbearing potential who are sexually active and not using a reliable form of contraception
* Current pregnancy or lactation.
* Subjects for whom insulin therapy is contraindicated or for whom, in the opinion of the investigator, therapy with insulin is not indicated
* Subjects with advanced proliferative diabetic retinopathy
* Subjects who work night shifts or who are unable to stay on a consistent daily meal schedule
* History of any clinically significant renal, hepatic, cardiovascular, neurological, endocrinological or other major systemic disease that, in the opinion of the investigator, may make implementation of the protocol or interpretation of the data difficult.
* Subjects who will likely require or initiate therapy with drugs which may interfere with glucose metabolism during the course of the study
* Subjects who are in another investigational study or have received another investigational medication within 30 days of study entry
* Subjects who are unable or unwilling to comply with all components of the study protocol, including contacting the investigators at specified times and attending all scheduled follow-up visits.

Primary outcomes:
measure: Hemoglobin A1c Change From Baseline
timeFrame: Baseline to 6 months
Secondary outcomes:
measure: Frequency of Glucose Readings < 130 mg/dL
timeFrame: 6 months
measure: Frequency of Total Hypoglycemic Reactions
timeFrame: 6 months
measure: Frequency of Severe Hypoglycemic Reactions
timeFrame: 6 months
measure: Body Mass Index Change From Baseline
timeFrame: 6 months
measure: Total Daily Insulin Dose
timeFrame: 6 months
measure: Any Adverse Event Other Than Hypoglycemia
timeFrame: 6 months
Other outcomes:
Locations:
city: Los Angeles
country: United States
facility: Charles Drew University of Medicine and Science
state: California
Study officials:
affiliation: Charles Drew University of Medicine and Science
name: Stanley Hsia, MD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Semlitsch T, Engler J, Siebenhofer A, Jeitler K, Berghold A, Horvath K. (Ultra-)long-acting insulin analogues versus NPH insulin (human isophane insulin) for adults with type 2 diabetes mellitus. Cochrane Database Syst Rev. 2020 Nov 9;11(11):CD005613. doi: 10.1002/14651858.CD005613.pub4.
citation: Hsia SH. Insulin glargine compared to NPH among insulin-naive, U.S. inner city, ethnic minority type 2 diabetic patients. Diabetes Res Clin Pract. 2011 Mar;91(3):293-9. doi: 10.1016/j.diabres.2010.11.028. Epub 2010 Dec 13.