- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT05674708
Fat Quality and Postprandial Inflammation (PI:fat)
Impact of Fat Quality on Postprandial Inflammation (PI:Fat): a Randomized Controlled Trial
This aim of this randomized controlled postprandial study is to compare the effects of four different far sources (butter, coconut, corn oil and flax seed oil) on postprandial inflammation and metabolic response.
The main questions it aims to answer are:
- What is the impact of different dietary sources of saturated and polyunsaturated fatty acids on postprandial inflammation?
- Is the impact of different dietary sources of saturated and polyunsaturated fatty acids on postprandial inflammation mediated by glucose or blood lipids?
- Can postprandial inflammatory or metabolic response be predicted by individual factors at baseline?
Participants will consume four meals, identical except for the fat source, in random order and sampled for blood and urine for up to 6 hours.
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
A randomized crossover single meal study will be conducted, comparing four isocaloric meals. The study will be carried out at two sites; one study center is located in Gothenburg, Sweden (Department of Internal Medicine and Clinical Nutrition at the University of Gothenburg) and one study center in Oslo, Norway (Department of Nutrition, University of Oslo).
A total of 20 healthy adults will be recruited and consume four meals, identical except for the fat source, in random order and sampled for blood and urine for up to 6 hours after. Each of the four meals will be separated by a 1 month washout. Subjects will be asked to abstain from rigorous physical activity, alcohol and high-fat foods the day prior to their test meal days.
Four isocaloric high-fat meals with different fatty acid profiles will be compared:
- butter
- coconut oil
- corn oil
- flax seed oil
At test meal days, study outcomes will be assessed at baseline (0h, fasting, pre meal), 30 min, 1h, 2h, 4h and at 6h (endpoint). At these timepoints, blood pressure will be measured and blood glucose sampled through capillary blood. At baseline, 2h, 4h and 6h, blood will be drawn by venipuncture. Urine will be collected when the participants need to void.
Blood will be collected and handled according to a standardized protocol to prevent any degradation, before stored in -80°C until analysis. At baseline and endpoint, peripheral blood mononuclear cells from blood samples will be isolated using cell preparation tubes and stored at -80 °C until RNA isolation. Lipids, lipoprotein profile and inflammation markers (e.g. cytokines, chemokines, endothelial factors) will be analyzed in samples from 0, 2, 4 and 6 hours.
Differences between meals in the outcomes will be compared using area under the curve and mixed models effect.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
-
Göteborg, Sweden
- University of Gothenburg
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- BMI >18.5
- Willingness to eat study meals
Exclusion Criteria:
- Diabetes
- Cardiovascular disease
- Cancer
- Dyslipidemia
- Anemia (Hb <100)
- Habitual intake of anti-inflammatory drugs
- Recent weight change (>±5%)
- Pregnancy, lactation
- Current smoking
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Prevention
- Allocation: Randomized
- Interventional Model: Crossover Assignment
- Masking: Double
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: Butter
Butter based meal
|
Four different sources of dietary fat
|
Active Comparator: Coconut
Coconut based meal
|
Four different sources of dietary fat
|
Active Comparator: Corn oil
Corn oil based meal
|
Four different sources of dietary fat
|
Active Comparator: Flax seed oil
Flax seed oil based meal
|
Four different sources of dietary fat
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Inflammation markers
Time Frame: 0, 2, 4 and 6 hours
|
Cytokines, chemokines, endothelial factors
|
0, 2, 4 and 6 hours
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Lipoproteins
Time Frame: 0, 2, 4 and 6 hours
|
Triglycerides, VLDL
|
0, 2, 4 and 6 hours
|
Lipidomics
Time Frame: 0, 2, 4 and 6 hours
|
Lipidomics characterization of lipid classes
|
0, 2, 4 and 6 hours
|
Blood glucose
Time Frame: 0, 0.5, 1, 2, 4, 6 hours
|
Capillary glucose sampling
|
0, 0.5, 1, 2, 4, 6 hours
|
Blood pressure
Time Frame: 0, 0.5, 1, 2, 4, 6 hours
|
Systolic and diastolic
|
0, 0.5, 1, 2, 4, 6 hours
|
Gene expression
Time Frame: 0 and 4 hours
|
Gene expression in peripheral blood mononuclear cells in a subset (N=10) participants
|
0 and 4 hours
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Linnea Bärebring, PhD, Göteborg University
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Estimated)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- 2022-05898-01
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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