Ignite Creation Date:
2025-12-25 @ 2:29 AM
Ignite Modification Date:
2025-12-28 @ 12:15 AM
Study NCT ID:
NCT01470534
Status:
UNKNOWN
Last Update Posted:
2012-10-05
First Post:
2011-11-09
Is NOT Gene Therapy:
True
Has Adverse Events:
False
Brief Title:
Mechanisms Underlying Postoperative Insulin Resistance and Inflammation
Sponsor:
University of Nottingham
Organization:
Study Overview
Official Title:
Investigating Whether the Magnitude of Postoperative Inflammatory and Insulin Resistant Responses is Related to Body Composition and Physiological Function of Skeletal Muscle & Adipose Tissue
Status:
UNKNOWN
Status Verified Date:
2012-10
Last Known Status:
RECRUITING
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
Having an operation places an enormous burden on the body, leading to the development of inflammation and so called 'insulin resistance'. Insulin resistance means the body is unable to respond to important hormones that control use of energy. Recent studies have shown that patients who develop 'higher' insulin resistance and inflammation have more serious complications and take longer to recover after surgery. The investigators do not know what controls the development of insulin resistance and inflammation after surgery. Similarly, the investigators do not know why certain patients develop much more insulin resistance and inflammation than others, even though they have the same operation.
The main purpose of the study is to try to find out which patients are prone to developing greater 'amounts' of insulin resistance and inflammation. The investigators also want to find out whether the investigators can reduce the 'amount' of insulin resistance and inflammation in these patients (for example by giving them carbohydrate \[sugar-based\] drinks before surgery - these have been shown to reduce insulin resistance in some patient groups).
Information from this study should improve the way the investigators prepare patients before surgery and this should help to improve patient outcomes following surgery (by reducing complications and speeding recovery after major surgery).
The main purpose of the study is to try to find out which patients are prone to developing greater 'amounts' of insulin resistance and inflammation. The investigators also want to find out whether the investigators can reduce the 'amount' of insulin resistance and inflammation in these patients (for example by giving them carbohydrate \[sugar-based\] drinks before surgery - these have been shown to reduce insulin resistance in some patient groups).
Information from this study should improve the way the investigators prepare patients before surgery and this should help to improve patient outcomes following surgery (by reducing complications and speeding recovery after major surgery).
Detailed Description:
Interested participants who are undergoing abdominal (tummy) surgery will be recruited from surgical clinics. They will be asked to attend the Greenfield Human Physiology Laboratory where they will be asked to complete two questionnaires. In addition, a sample of blood, and a small sample of muscle and fat from their thigh will be taken. They will undergo a low dose X-ray (DXA scan) and an insulin clamp. The insulin clamp involves being connected to an insulin and glucose drip for around four hours during which their blood pressure and pulse is monitored and regular blood samples are taken.
Participants will be allocated randomly to one of two groups. One group will receive a carbohydrate (sugar) drink before surgery and the other group will receive a dummy (placebo) drink.
On the day of surgery, pre-operative checks and assessment will proceed as normal. After the participant is asleep under anaesthetic, a blood sample and tummy muscle and fat samples will be taken by the surgeon through the surgical incision. At the end of surgery, another blood sample and muscle and fat samples from the tummy and thigh will be taken while the participant is still under anaesthetic.
On the day after surgery, a further blood test and tummy and thigh muscle and fat sample will be taken. Participants will also undergo another insulin clamp.
The research team will follow participants' progress after surgery, but the decision to allow them home will be made by the medical team responsible for their care.
Participants will be allocated randomly to one of two groups. One group will receive a carbohydrate (sugar) drink before surgery and the other group will receive a dummy (placebo) drink.
On the day of surgery, pre-operative checks and assessment will proceed as normal. After the participant is asleep under anaesthetic, a blood sample and tummy muscle and fat samples will be taken by the surgeon through the surgical incision. At the end of surgery, another blood sample and muscle and fat samples from the tummy and thigh will be taken while the participant is still under anaesthetic.
On the day after surgery, a further blood test and tummy and thigh muscle and fat sample will be taken. Participants will also undergo another insulin clamp.
The research team will follow participants' progress after surgery, but the decision to allow them home will be made by the medical team responsible for their care.
Study Oversight
Has Oversight DMC:
True
Is a FDA Regulated Drug?:
None
Is a FDA Regulated Device?:
None
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?: