Perioperative Insulin Glargine Dosing Study

Overview[ - collapse ][ - ]

Purpose The main objective of this study is to compare three strategies of evening insulin glargine dosing to preoperative glucose values in patients with diabetes undergoing surgery to determine which dosing strategies most often achieves the admission target study values of 100-179 mg/dl.
ConditionDiabetes
Surgery
InterventionDrug: Lantus
Other: Insulin
Drug: Lantus
PhasePhase 4
SponsorTamra Dukatz
Responsible PartyWilliam Beaumont Hospitals
ClinicalTrials.gov IdentifierNCT00309465
First ReceivedMarch 30, 2006
Last UpdatedNovember 1, 2012
Last verifiedNovember 2012

Tracking Information[ + expand ][ + ]

First Received DateMarch 30, 2006
Last Updated DateNovember 1, 2012
Start DateOctober 2005
Estimated Primary Completion DateOctober 2009
Current Primary Outcome MeasuresPrimary: Preoperative Fasting Blood Sugar Upon Arrival at the Hospital Prior to Surgery [Time Frame: Day 1] [Designated as safety issue: Yes]Venous blood glucose values were obtained in the preoperative nursing unit. Blood glucose values were analyzed for achievement of target 100-179 mg/dl range and extended 80-249 mg/dl range. Analyses were by intention to treat.
Current Secondary Outcome MeasuresNot Provided

Descriptive Information[ + expand ][ + ]

Brief TitlePerioperative Insulin Glargine Dosing Study
Official TitleA Study of the Relationship Between the Proportional Insulin Glargine Evening Dose and the Perioperative Serum Glucose Values in Patients With Diabetes Undergoing Surgery
Brief Summary
The main objective of this study is to compare three strategies of evening insulin glargine
dosing to preoperative glucose values in patients with diabetes undergoing surgery to
determine which dosing strategies most often achieves the admission target study values of
100-179 mg/dl.
Detailed Description
There are no evidence-based guidelines for insulin glargine (Lantus) dosing in the
perioperative setting. Insulin glargine provides peakless 24-hour coverage of basal insulin
needs for people with both Type 1 and Type 2 diabetes. Insulin glargine may be used as the
sole insulin or in combination with other rapid-acting insulin to achieve glycemic control.

Anesthesia literature recommends that blood sugar values on insulin-dependent patients be
maintained between 120-180 mg/dl in most surgeries. Symptoms of low blood sugar are
undetectable in anesthetized patients, and blood glucose is tested at least hourly. Since
patients are still awake and alert toward hypoglycemic symptoms in the preoperative area,
the admission target study values are 100-179 mg/dl. Glucose values greater than 200 mg/dl
have been associated with increased rates of infection, and exacerbated complications if a
major cardiovascular event happens.

Frequently insulin glargine is administered in the evening. Patients who are scheduled for
surgery in the morning are asked not to eat or drink after midnight. Some endocrinology
experts recommend that all or part of the patient's usual insulin glargine should be given
to avoid high blood sugar; however, whenever insulin is given without food, the possibility
of low blood sugar exists.

1. Patients in Group 1 will administer 80% of their usual insulin glargine dose.

2. Group 2 patients will contact their own diabetes care physician and follow those
recommendations for the dose.

3. Group 3 patients will take 50%, 80%, or 100% of their usual insulin glargine dose.
Which of those three percentages will be determined by the midpoint of the patient's
usual self-reported fasting blood sugar (FBS) range and whether the patients is also
taking a rapid-acting insulin.
Study TypeInterventional
Study PhasePhase 4
Study DesignAllocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment
Condition
  • Diabetes
  • Surgery
InterventionDrug: Lantus
Patients in Group 1 will administer 80% of their usual insulin glargine dose.
Other Names:
Lantus, InsulinOther: Insulin
Group 2 patients will contact their own diabetes care physician and follow those recommendations for the dose
Other Names:
As directed by regular physicianDrug: Lantus
Group 3 patients will take 50%, 80%, or 100% of their usual insulin glargine dose. Which of those three percentages will be determined by the midpoint of the patient's usual self-reported fasting blood sugar (FBS) range and whether the patients is also taking a rapid-acting insulin.
Other Names:
Lantus
Study Arm (s)
  • Experimental: 1
    Patients in Group 1 will administer 80% of their usual insulin glargine dose.
  • Active Comparator: 2
    Group 2 patients will contact their own diabetes care physician and follow those recommendations for the dose.
  • Experimental: 3
    Group 3 patients will take 50%, 80%, or 100% of their usual insulin glargine dose. Which of those three percentages will be determined by the midpoint of the patient's usual self-reported fasting blood sugar (FBS) range and whether the patients is also taking a rapid-acting insulin.

Recruitment Information[ + expand ][ + ]

Recruitment StatusCompleted
Estimated Enrollment402
Estimated Completion DateOctober 2009
Estimated Primary Completion DateOctober 2008
Eligibility Criteria
Inclusion Criteria:

- Scheduled for Surgical Procedure

- Self Management of Diabetes

- Currently on Evening Insulin Glargine prescribed by Primary Care Physician

- Age 18 or over

- Able to Communicate Clearly over the Phone

- Pre-screened by Anesthesia Department > 48 hours prior to Surgery

Exclusion Criteria:

- On Glucocorticoid Medication

- On Insulin Glargine Dual Dosing or Sliding Scale Regimen

- History of Hypoglycemia Unawareness

- Pregnancy or Lactating Female

- On Insulin Glargine for < 3 months
GenderBoth
Ages18 Years
Accepts Healthy VolunteersNo
ContactsNot Provided
Location CountriesUnited States

Administrative Information[ + expand ][ + ]

NCT Number NCT00309465
Other Study ID NumbersHIC 2005-080
Has Data Monitoring CommitteeNo
Information Provided ByWilliam Beaumont Hospitals
Study SponsorTamra Dukatz
CollaboratorsSanofi
Investigators Principal Investigator: Tamra Dukatz, MSN, CRNA William Beaumont Hospitals
Verification DateNovember 2012

Locations[ + expand ][ + ]

William Beaumont Hospital
Royal Oak, Michigan, United States, 48073
William Beaumont Hospital
Troy, Michigan, United States, 48085