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Clinical Trial Details — Status: Terminated

Administrative data

NCT number NCT00753766
Other study ID # CLIN-004-04F
Secondary ID
Status Terminated
Phase N/A
First received
Last updated
Start date October 2005
Est. completion date September 2008

Study information

Verified date February 2019
Source VA Office of Research and Development
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The purpose of this study is to advance the quality of care among inpatients with diabetes in the VHA. When patients with diabetes are admitted to the hospital, there is a greater chance that they will have a complication that lengthens their stay in the hospital. We are testing whether managing their diabetes before admission makes a difference in occurrence of in-hospital complications.


Description:

Patients with diabetes that require hospitalization are at increased risk for morbidity and mortality, especially when undergoing surgery. There is some evidence that intensive glucose management during hospitalization may improve outcomes. However, no studies have evaluated intensive diabetes treatment before hospitalization.

Preliminary data from patients having vascular surgery show that those with diabetes have longer hospital stays, more frequent wound infections, and are more likely to require a return to the operating room when compared to patients without diabetes. In particular, insulin-treated patients have even greater peri-operative complications than non-insulin treated patients with diabetes. However, these data also suggest that a clinical trial to test the hypothesis that pre-operative intensive management has significant impact on peri-operative complications would require a very large number of participants to have adequate power.

Thus, our objective is to conduct a pilot and feasibility study to determine whether an intervention that involves intensive pre-operative diabetes management can be successfully implemented and to assess whether trends for benefit are observed. The results of this trial will support the conduct of a definitive study that tests the effectiveness of such an intervention in a larger sample of patients.

This is a randomized, parallel group clinical trial in insulin-treated patients with diabetes mellitus who have been scheduled for elective vascular surgery. We will randomize 46 participants diabetes mellitus: insulin-treated with HbA1c 7.5% or treated with oral agents with an elevated HbA1c who are scheduled for vascular surgery and in whom a 6 week pre-operative delay poses no substantial medical risks, as determined by the staff surgeon. We will exclude individuals with markedly elevated HbA1c or blood pressure; those with recently manifest cardiovascular disease, and those unable to attend regularly scheduled follow-up visits during the pre-operative period.

Participants will be randomized to either continue with usual care or participate in a multifactorial intervention conducted over a 6-week period. During the intervention period, participants will meet with a care manager and/or endocrinologist on at least 3 occasions and have telephone follow-up between these visits. They will receive instruction on lifestyle modifications; measure glucose and blood pressure at home (including the use of a continuous glucose monitoring device on 2 occasions), and receive care management to optimize glucose, blood pressure, and lipid lowering, as appropriate.

The primary outcome measure is the percent of screened participants that are eligible and choose participation Secondary end points will include: participant adherence with the study protocol, change from baseline in A1c and fructosamine, occurrence of wound infections in the 30-day peri-operative period, a composite of death from cardiovascular causes, non-fatal myocardial infarction, coronary artery bypass grafting, percutaneous coronary intervention, nonfatal stroke, or amputation as a result of peripheral ischemia; length of hospital stay; and rate of return to the operating room.


Recruitment information / eligibility

Status Terminated
Enrollment 1
Est. completion date September 2008
Est. primary completion date December 2007
Accepts healthy volunteers No
Gender All
Age group N/A and older
Eligibility Inclusion Criteria:

- Diagnosis of diabetes mellitus

- A1c 7.5%,

- Scheduled elective vascular surgery that may be safely deferred for 6 weeks

- Surgeon's approval to participate

Exclusion Criteria:

- Hemoglobin A1c >14% (This criterion was included since, once identified, such a patient warrants improved glucose control and can not be ethically entered into a trial where there is a 50% chance of being assigned to usual care)

- Myocardial infarction in prior 6 months

- Cerebrovascular disease in prior 6 months

- Active cancer requiring ongoing treatment

- Severe psychiatric disease limiting ability to comply with protocol

- Unable to attend follow up appointments

Study Design


Related Conditions & MeSH terms


Intervention

Other:
Multifactorial Intervention


Locations

Country Name City State
n/a

Sponsors (1)

Lead Sponsor Collaborator
VA Office of Research and Development

Outcome

Type Measure Description Time frame Safety issue
Primary Percent of Screened Participants That Are Eligible and Choose Participation 6 weeks
Secondary Percentage of Participants With Full Adherence to the Study Protocol (i.e. Attending Study Visits, CGMS Studies) 6 weeks
Secondary Percentage of Participants Not Completing the Protocol Due to the Need for Urgent Surgery and/or Treatment-related Complications 6 weeks
Secondary Change in A1c From Baseline to Pre-admission (A1c is the Standard Parameter to Assess Chronic Glucose Control]) A1c measured at two time points - baseline and 6 weeks later (pre-admission). This parameter is the difference between those two time points. 6 weeks
Secondary Number of Participants With Occurrence of Wound Infection in the 30 Day Post-operative Period 30 days
Secondary Length of Hospital Stay 6 weeks
Secondary Number of Participants Who Experience a Composite of Death From Cardiovascular Cause, Non-fatal Myocardial Infarction, Coronary Artery Bypass Grafting, Percutaneous Coronary Intervention, Nonfatal Stroke, or Amputation as a Result of Peripheral Ischemia 6 weeks
Secondary Percentage of Participants Who Need to Return to the Operating Room 6 weeks
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