Study Comparing a Soybean Oil-Based With an Olive Oil-Based Lipid Emulsion in ICU Patients Requiring TPN (TPN2)

Study Comparing a Soybean Oil-Based vs Olive Oil-Based Lipid Emulsion: Effects on Endothelial Function, Inflammatory Markers, Oxidative Stress, Immune Function,Insulin Sensitivity and Carb Metabolism Intensive Care Unit Patients

Many hospitalized patients who are malnourished or not eating receive intravenous feeding or total parenteral nutrition (TPN). Despite improving nutrition, TPN may increase the risk of infections and hospital complications. We do not know why TPN increases hospital complications, but it may be caused by the high sugar or fat content in TPN solutions.

Study Overview

• Status: Completed
• Conditions: Parenteral Nutrition
• Intervention / Treatment: Drug: Intralipid, 20% Intravenous Emulsion; Drug: ClinOleic 20% Intravenous Emulsion

Detailed Description

This study compares the effect of a soybean oil-based versus an olive oil-based lipid emulsion in healthy volunteers and in critically ill patients. In healthy volunteers, your blood sugar levels, blood vessel function, and your ability to fight infections will be examined. In ICU patients, we examines whether use of the olive oil-based lipid emulsion may decrease the risk of infection and hospital complications.

• Study Type: Interventional
• Enrollment (Actual): 100
• Phase: Phase 2; Phase 3

Contacts and Locations

Study Locations

• United States
  • Georgia
    • Atlanta, Georgia, United States, 30322
      • Emory University Hospital
    • Atlanta, Georgia, United States, 30303
      • Grady Memorial Hospital

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 80 years (ADULT, OLDER_ADULT)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion criteria:

• Age: 18 - 80 years when initiating PN
• In medical/surgical ICU
• Has central venous access to administer PN
• Anticipated to receive PN ≥ 5 days

Exclusion criteria:

• Enrolled in an investigative study within the last 30 days prior to study entry
• Female patients: pregnant or breast feeding
• Has clinical sepsis (defined as mean arterial pressure (MAP) < 60 mmHg on ≥ 2 occasions and unstable BP despite pressor support) within 24 hours prior to study entry
• Has known cirrhosis or total bilirubin ≥ 10.0 mg/dL
• Has chronic renal failure (defined as requirement for hemodialysis or peritoneal dialysis therapy), or creatinine ≥ 3.5 mg/dL without continuous renal replacement therapy (CRRT), or requires acute post-operative dialysis
• Has an active malignancy (defined as requiring chemotherapy, radiation, and/or surgical intervention within 90 days prior to study entry) (excluding non-melanoma skin cancer)
• Has known AIDS
• Has a terminal illness (life expectancy < 7 days)
• Has undergone organ transplantation
• Has received PN with lipid within 48 hours prior to study entry
• Has mental disability to understand the scope and possible consequences of the study and the legally authorized representative is unavailable
• Has a baseline serum triglyceride > 400 mg/dL

Study Plan

How is the study designed?

Design Details

• Primary Purpose: TREATMENT
• Allocation: RANDOMIZED
• Interventional Model: PARALLEL
• Masking: TRIPLE

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
ACTIVE_COMPARATOR: Intralipid 20% Intravenous Emulsion; Subjects who require Total Parenteral Nutrition TPN receiving Intralipid 20% (soybean-based)	Drug: Intralipid, 20% Intravenous Emulsion; It is made up of 20% Soybean oil, 1.2% egg yolk phospholipids, 2.25% glycerin, and water for injection; Other Names: 20% i.v. fat emulsion
EXPERIMENTAL: ClinOleic 20% Intravenous Emulsion; Subjects who require Total Parenteral Nutrition TPN receiving ClinOleic 20% (olive oil based)	Drug: ClinOleic 20% Intravenous Emulsion; ClinOleic 20% is a lipid emulsion containing a mixture of refined olive oil (approximately 80%) and refined soybean oil (approximately 20%) corresponding to an essential fatty acid intake of approximately 20% of the total fatty acids intake.; Other Names: Lipid Emulsion

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Number of New Nosocomial Infections After 48 Hrs of Parenteral Nutrition (PN) Between the 2 Groups During Their Hospital Stay	New nosocomial infections, defined as culture-proven infection including wound, drain, bloodstream, respiratory tract, and urinary tract infections during PN. The presence of nosocomial infections was diagnosed based on standardized Centers for Disease Control (CDC) guidelines for laboratory-confirmed bloodstream infection and did not distinguish catheter-related infections per se. The following daily information was evaluated by the study team for nosocomial infection surveillance: temperature (fever)curve, white blood cell counts, review of daily progress notes in the medical record, daily clinical microbiology laboratory culture data, orders for antimicrobial agents (agent, daily dose, and start/stop times will be recorded), review of all relevant dictated radiographic reports (e.g., chest radiographs, abdominal computer tomography), communication, as needed, with primary physicians and site infectious disease consultants, and use of the CDC guidelines.	2 days after Parenteral Nutrition (up to 28 days post randomization)

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Number of Days Patients Stayed in ICU During Parenteral Nutrition Between Treatment Groups	The mean number of days patients stayed in the intensive care unit between the Intralipid 20% and ClinOleic 20% while they are on parenteral nutrition is calculated and compared	During Parenteral Nutrition (up to 28 days post randomization)
Mean Plasma Concentration of C-reactive Protein in mg/L at Baseline, Day 3 and Day 7 Among the Treatment Groups Will be Measured	Peripheral blood samples will be analyzed for circulating levels of inflammatory markers markers like plasma C-reactive protein (CRP) at baseline, day 3, and day 7 of soybean oil- and olive oil-based parenteral nutrition infusion and compared. A reading of less than 1 mg/L indicates low risk; a reading between 1 and 2.9 mg/L indicates intermediate risk; a reading greater than 3 mg/L indicates high risk and a reading above 10 mg/L indicates a need for further testing. Since the patients are sick and hospitalized, it is expected that their levels are elevated compared to normal subjects. The levels between the 2 groups are compared to see if there is any difference.Levels were measured in plasma using a solid phase, two-site sequential chemiluminescent immunometric assays on the Immulite analyzer.	Baseline, Day 3 and Day 7
Mean Plasma Concentration of Tumor Necrosis Factor-alpha, in pg/mL is Measured Between the Two Treatment Groups	Plasma concentration of circulating levels of inflammatory stress markers like tumor necrosis factor-alpha is measured at baseline, day 3, and day 7 among soybean oil- and olive oil-based parenteral nutrition infusion groups. The normal reference values are < or =2.8 pg/mL. Levels were measured in plasma using a solid phase, two-site sequential chemiluminescent immunometric assays on the Immulite analyzer.	Baseline, Day 3 and Day 7
Mean Change in Plasma Concentration of Cystine in Micromol Per Liter at Baseline, Day 3 and Day 7 Among the Treatment Groups	Mean Plasma concentration of circulating levels of oxidative stress markers like levels of cystine at baseline, day 3, and day 7 are measured and compared between the soybean oil- and olive oil-based parenteral nutrition infusion groups. Levels were measured using iodoacetate to alkylate free thiols, derivatization with dansyl chloride to fluorescently tag amino groups, and high pressure liquid chromatography (HPLC) and fluorescence to separate, detect, and quantify the molecules.	Baseline, Day 3 and Day 7
Mean Hospital Blood Glucose (mg/dL) in Diabetic Patients is Measured During Parenteral Nutrition Between the Two Treatment Groups	Mean hospital blood glucose is measured as an indicator for insulin sensitivity. Capillary blood glucose was measured with a glucose meter at bedside during PN infusion. For this study normal blood glucose levels were indicated as 70-200 mg/dL, any blood glucose level < 70 mg/dL is regarded as hypoglycemia and above 200 mg/dL is regarded as hyperglycemia.	During Parenteral Nutrition (up to 28 days post randomization)
Number of Deaths During Parenteral Nutrition Treatment Between Two Treatment Groups During Hospitalization	Mortality is defined as death occurring during admission, either during the time PN is received or after PN treatment is completed. Death during hospitalization rather than during PN treatment was chosen because many patients who undergo treatment with PN die or develop hospital complications within a period of several days after treatment cessation. The number of deaths between the two groups are compared.	During Parenteral Nutrition (up to 28 days post randomization)
Mean Change in Percentage of Granulocyte Phagocytosis After 7-day Administration of Parenteral Nutrition Between the Two Treatment Groups	Change in immune function is assessed by percentage of Granulocyte phagocytosis after 7-day administration of parenteral nutrition between the two treatment groups. The phagocytic and oxidative burst activity of monocytes and granulocytes in heparinized whole blood was assessed according to manufacturer's instructions using specific reagent kits for this purpose at baseline and again at day 7. Briefly, granulocyte phagocytic activity was quantitated by incubation of whole blood with fluorescein isothiocyanate-labeled, opsonized Escherichia coli bacteria at 37°C with detection of fluorescence of internalized particles as a percentage of positive cells by flow cytometry.	Baseline and 7 days post randomization

Collaborators and Investigators

• Sponsor: Emory University
• Collaborators: Baxter Healthcare Corporation

Publications and helpful links

General Publications

• Umpierrez GE, Spiegelman R, Zhao V, Smiley DD, Pinzon I, Griffith DP, Peng L, Morris T, Luo M, Garcia H, Thomas C, Newton CA, Ziegler TR. A double-blind, randomized clinical trial comparing soybean oil-based versus olive oil-based lipid emulsions in adult medical-surgical intensive care unit patients requiring parenteral nutrition. Crit Care Med. 2012 Jun;40(6):1792-8. doi: 10.1097/CCM.0b013e3182474bf9.

Study record dates

Study Major Dates

• Study Start: November 1, 2008
• Primary Completion (ACTUAL): December 1, 2010
• Study Completion (ACTUAL): December 1, 2010

Study Registration Dates

• First Submitted: April 18, 2008
• First Submitted That Met QC Criteria: May 5, 2008
• First Posted (ESTIMATE): May 6, 2008

Study Record Updates

• Last Update Posted (ACTUAL): October 17, 2018
• Last Update Submitted That Met QC Criteria: September 20, 2018
• Last Verified: September 1, 2018

More Information

Terms related to this study

• Keywords: insulin sensitivity; autonomic nervous system; mortality; oxidative stress; immune function; endothelial function; carbohydrate metabolism; lipid emulsion; inflammatory markers; parenteral nutrition; nosocomial infection
• Additional Relevant MeSH Terms: Glucose Metabolism Disorders; Metabolic Diseases; Hyperinsulinism; Insulin Resistance; Pharmaceutical Solutions; Parenteral Nutrition Solutions; Fat Emulsions, Intravenous; Soybean oil, phospholipid emulsion
• Other Study ID Numbers: IRB00007587; TPN (OTHER_GRANT: Baxter Healthcare Corporation)