Skip to content

Basal Bolus Insulin Versus SSRI in Type 2 Diabetes Undergoing General Surgery

RAndomized Study of Basal Bolus Insulin Therapy in the Inpatient Management of Patients With Type 2 Diabetes Undergoing General Surgery (RABBIT 2 Surgery)

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00596687
Acronym
RABBIT 2-SX
Enrollment
234
Registered
2008-01-17
Start date
2007-12-31
Completion date
2013-07-31
Last updated
2014-03-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Type 2 Diabetes, Inpatient Hyperglycemia

Keywords

diabetes, post-op complications, inpatient hyperglycemia

Brief summary

High blood glucose levels in surgical patients with diabetes are associated with increased risk of medical complications and death. Improved glucose control with insulin injections may improve clinical outcome and prevent some of the hospital complications. In patients who have undergone surgery, high blood glucose increases the risk of wound infection, kidney failure and death. It is not known; however, what is the best insulin regimen in patients who will undergo surgery. The use of repeated injections of regular insulin is commonly used for glucose control in hospitalized patients with diabetes. Recently, the combination of Lantus® and Apidra® insulins has been shown to improve glucose control with lower rate of hypoglycemia (low blood sugar). We hypothesize that in patients with type 2 diabetes admitted to general surgery wards, treatment with once daily glargine (Lantus) plus supplemental glulisine insulin (Apidra®) will produce better glycemic control and a lower rate of hospital complications than treatment with regular insulin per sliding scale (SSRI). The present study aims to determine which insulin treatment is best for glucose control in hospitalized patients with diabetes. Glargine and glulisine insulins are approved for use in the treatment of patients with diabetes by the FDA. Subjects included in the study will have type 2 diabetes and be admitted to Grady Memorial Hospital, Veterans Administration Medical Center, and Emory University Hospital, Atlanta, Georgia. A total of \ 94 patients will be recruited at each institution. A post-hoc cost analysis of hospitalization costs and charges of the Rabbit surgery trial will be completed in order to determine differences in hospitalization cost between basal bolus insulin and SSI regimen.

Interventions

DRUGInsulin glargine

Insulin glargine once daily SQ

Sliding scale regular insulin SQ four-times daily before meals or every 6 hours if patient NPO

DRUGInsulin glulisine

scheduled glulisine given SQ at mealtime TID; none given if patient NPO

Sponsors

Sanofi
CollaboratorINDUSTRY
Emory University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

1. Males or females between the ages of 18 and 80 years admitted to a general surgery service. 2. Patients admitted for non-cardiac elective or emergency surgery or trauma. 3. A known history of type 2 diabetes mellitus \> 3 months, receiving either diet alone or any combination of oral antidiabetic agents (sulfonylureas, metformin, thiazolidinediones). 4. Subjects must have an admission blood glucose \> 140 mg and \< 400 mg/dL without laboratory evidence of diabetic ketoacidosis (serum bicarbonate \< 18 mEq/L or positive serum or urinary ketones).

Exclusion criteria

1. Subjects with increased blood glucose concentration, but without a known history of diabetes (stress hyperglycemia). 2. Subjects with a history of diabetic ketoacidosis and hyperosmolar hyperglycemic state, or ketonuria. 3. Acute critical illness or CABG surgery expected to require prolonged admission to a critical care unit (ICU, CCU, SICU, Neuro ICU). 4. Patients with clinically relevant hepatic disease or impaired renal function, as shown by a serum creatinine ≥ 3.5 mg/dl. 5. Mental condition rendering the subject unable to understand the nature, scope, and possible consequences of the study. 6. Female subjects are pregnant or breast feeding at time of enrollment into the study.

Design outcomes

Primary

MeasureTime frameDescription
Mean Blood Glucose Concentrationhospital stay days 2-10blood glucose concentration in the intervention groups after second day of treatment to up to 10 days of treatment

Secondary

MeasureTime frameDescription
# Participants With Hypoglycemic Eventshospital stay days 2-10number of participants in the treatment arms with of hypoglycemic events (\< 70 mg/dl)

Countries

United States

Participant flow

Recruitment details

Enrolled patients with a BG 140-400 mg/dL with DM for more than 3 months,aged 18-80 yo, treated with diet alone, any combination of oral antidiabetic agents, or lowdose insulin in 2008-2009. Study was conducted at Grady Memorial Hospital,Emory University Hospitaland the Veterans Administration Medical Center.

Pre-assignment details

Exclusion criteria included hyperglycemia without a known history of diabetes, cardiac surgery, clinically relevant hepatic disease or impaired renal function (serum creatinine ≥3.0 mg/dL), history of diabetic ketoacidosis (20), pregnancy, and any mental condition rendering the subject unable to give informed consent.

Participants by arm

ArmCount
Basal Bolus
Glargine and rapid-acting mealtime insulin plus supplemental glulisine
104
SSRI
Sliding scale regular insulin four-times daily.
107
Total211

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall Study< 24 hours of insulin treatment86
Overall Studycancelled surgery11
Overall Studycontinuous insulin infusion during TPN21
Overall StudyWithdrawal by Subject31

Baseline characteristics

CharacteristicSSRIBasal BolusTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
5 Participants3 Participants8 Participants
Age, Categorical
Between 18 and 65 years
102 Participants101 Participants203 Participants
Age, Continuous57 years
STANDARD_DEVIATION 10
58 years
STANDARD_DEVIATION 12
58 years
STANDARD_DEVIATION 11
Region of Enrollment
United States
107 participants104 participants211 participants
Sex: Female, Male
Female
54 Participants50 Participants104 Participants
Sex: Female, Male
Male
53 Participants54 Participants107 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
0 / 1040 / 107
serious
Total, serious adverse events
24 / 1045 / 107

Outcome results

Primary

Mean Blood Glucose Concentration

blood glucose concentration in the intervention groups after second day of treatment to up to 10 days of treatment

Time frame: hospital stay days 2-10

ArmMeasureValue (MEAN)Dispersion
Basal BolusMean Blood Glucose Concentration145 mg/dlStandard Deviation 32
SSRIMean Blood Glucose Concentration172 mg/dlStandard Deviation 46
Secondary

# Participants With Hypoglycemic Events

number of participants in the treatment arms with of hypoglycemic events (\< 70 mg/dl)

Time frame: hospital stay days 2-10

ArmMeasureValue (NUMBER)
Basal Bolus# Participants With Hypoglycemic Events24 participants
SSRI# Participants With Hypoglycemic Events5 participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026