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Abdominal ObesityCHICKPEPNCT05149092

Effects of Chicken Protein Hydrolysate (CPH) Supplementation in People With High Waist Circumference

A study testing Chicken protein hydrolysate supplement in people with Abdominal Obesity, run by University of Bergen at 1 site in Norway.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

In this randomized, placebo controlled, double blind trial, effects of relatively high doses of chicken protein hydrolysate (CPH) or casein hydrolysate (placebo) supplementation will be investigate in healthy persons with abdominal obesity. Read more about this study

Who is it for?
Ages 20 to 80 yearsHealthy volunteers can take part
Conditions the study is for
Abdominal Obesity
What is being tested?
Chicken protein hydrolysate supplement
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
58 participants
Where
1 siteNorway
Study dates
18 Jan 2021to 30 Apr 2021
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 20 to 80 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Female and male subjects at least 20 years old understanding Norwegian oral and written information
  • Waist circumference of:
  • Men > 95 cm
  • Women > 81 cm

Who cannot join

  • Pregnancy
  • Having used high-dose omega-3 PUFA supplements (>2 g/day) 28 days' prior to randomization
  • Alcohol or drug abuse or any conditions associated with poor compliance
  • Scheduled hospitalization during the course of the study that could compromise the study
  • Major diseases or infections including chronic diseases
  • Known or suspected sensitivity or allergic reactions to the IMP or excipients
  • Presence of other major medical or psychiatric illness that would affect the ability to participate in the study or put the subject at increased risk
  • Intake of statins. If needed to obtain the recruitment goals, we will accept people using a low dose of statin. Simvastatin 10 mg or Pravastatin 10-20 mg will be accepted, but not higher doses or the drugs Lipitor/Atorvastatin and Crestor/Rosuvastatin.

Trial locations and contacts

1 site in 1 country.

Norway1 site
  • Research Unit for Health Trials

    Bergen, 5009

Other trials in Norway

About this study

Official title: Randomized, Double Blind, Placebo Controlled Study to Investigate the Effect of Chicken Protein Hydrolysates (CPH) in Persons With High Waist Circumference

In this randomized, placebo controlled, double blind trial, effects of relatively high doses of chicken protein hydrolysate (CPH) or casein hydrolysate (placebo) supplementation will be investigate in healthy persons with abdominal obesity. The 12-week study examines potential effects on body weight, abdominal obesity, body composition, plasma parameters of metabolic health including lipids, inflammatory parameters, redox state and microbiota biomarkers.

Read the detailed description

Small peptides in the range of 2 - 12 amino acids are believed to cross the intestinal wall undigested and enter the circulation where they can have a range of activities based on their amino acid composition and structure. Natural peptides isolated from a number of food proteins, including plants and marine organisms, are shown to have antioxidant effects in in vitro tests, and anti-hypertensive effects in mice through inhibition of the angiotensin-converting-enzyme (ACE). Protein hydrolysates from both animal- and plant-based sources will consist of a mixture of potentially bioactive peptides that can have specific effects based on their composition. Studies have shown that egg- and soy-derived hydrolysates have anti-diabetic and anti-obesity properties in rodents. Pre-clinical studies in mice have demonstrated potent plasma cytokine lowering abilities and atherosclerosis-prevention by chicken protein hydrolysate (CPH) diets, as well as effects on plasma cholesterol level, cytokines and lipid metabolism, including mitochondrial function. In addition, an isolated peptide fraction from chicken inhibits the dipeptyl peptidase IV, and thus has the potential to restore glucose homeostasis in type 2 diabetics.

The hydrolysate supplements used in this study are obtained from rest raw materials (RRM) from mechanical deboning of chicken meat (Food Grade, Nortura AS Hærland, Norway). Freshly minced chicken RRM has been treated with enzymes optimized to generate bioactive hydrolysates. The supplement is given in a dose of 18 g protein per day, corresponding to the protein content of a standard meal, and similar to doses recommended in protein shake supplements.

Around 60 males and females age >20 years with abdominal obesity participate, recruited primarily through social media advertisements (Facebook) limited to a 12 km radius around the city center of Bergen. Participants provided written informed consent, and were screened via self-reporting in an online form in EasyTrial hosted by the Research Unit for Clinical Trials at the University of Bergen. Data collection by the study staff at baseline verifies inclusion and exclusion criteria and participant eligibility prior to randomization. The potential participants are informed about practical details at a digital or physical meeting 1-2 weeks prior to baseline.

Groups of participants (40-60% males/females) are block randomized to the two treatments (CPH or placebo casein supplementation) using randomly selected block sizes, and stratified according to sex.

The participants are given a container with the powder sufficient for the entire 12-week study period, and a spoon to measure the intake at breakfast (6 g), lunch (6 g) and supper (6 g), or morning (9 g) and evening (9 g) according to individual preference. The patients will mix the powder products in water or mineral water.

Being tested
Chicken protein hydrolysate supplement, Placebo
Keywords
Cardiovascular disease risk, Protein supplementation, Metabolic health
Medical subject headings
Obesity, Abdominal

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Chicken protein hydrolysate supplementDietary supplement

    Also called CPH

    Daily oral self-administration of 18 g of supplement dissolved in water/mineral water, spread over 2-3 occasions

  • PlaceboDietary supplement

    Also called Casein

    Daily oral self-administration of 18 g of supplement dissolved in water/mineral water, spread over 2-3 occasions

Study groups in NCT05149092
Study groupRoleWhat they receive
Placebo (casein protein supplement)Placebo comparatorNot described
Receives: Dietary Supplement: Placebo
Chicken protein hydrolysate supplementActive comparatorNot described
Receives: Dietary Supplement: Chicken protein hydrolysate supplement

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Changes from baseline in waist circumference in the CPH group as compared to placebo/casein at week 12

    Waist circumference will be measured using anthropometric tape over light clothing. For waist circumference, the minimum circumference between the iliac crest and the rib cage will be used.

    Measured: At baseline visit and end visit (week 12)

Secondary outcomes (24)
  1. Changes from baseline in glucagon-like peptide 1 (GLP-1, hormone involved in appetite and metabolism regulation) in the CPH group as compared to placebo/casein

    Measured in plasma using immunological methods (ELISA). All plasma samples will be kept on ice directly after collection, and relevant inhibitors will be added.

    Measured: At baseline visit and end visit (week 12)

  2. Changes from baseline in gastric inhibitory polypeptide (GIP, hormone involved in metabolism regulation) in the CPH group as compared to placebo/casein

    Measured in plasma using immunological methods (ELISA). All plasma samples will be kept on ice directly after collection, and relevant inhibitors will be added.

    Measured: At baseline visit and end visit (week 12)

  3. Changes from baseline in ghrelin (hormone involved in appetite regulation) in the CPH group as compared to placebo/casein

    Measured in plasma using immunological methods (ELISA). All plasma samples will be kept on ice directly after collection, and relevant inhibitors will be added.

    Measured: At baseline visit and end visit (week 12)

  4. Changes from baseline in heart rate in the CPH group as compared to placebo/casein

    The heart rate will be registered after 5 minutes of supine rest using a Schiller BP-200

    Measured: At baseline visit and end visit (week 12)

  5. Changes from baseline in blood pressure in the CPH group as compared to placebo/casein

    The blood pressure will be registered after 5 minutes of supine rest using a blood pressure monitor.

    Measured: At baseline visit and end visit (week 12)

  6. Changes from baseline in waist/hip ratio in the CPH group as compared to placebo/casein

    Waist and hip circumference will be measured using anthropometric tape over light clothing. For waist circumference, the minimum circumference between the iliac crest and the rib cage will be used. For hip circumference, the maximum measurement over the great trochanters will be used.

    Measured: At baseline visit and end visit (week 12)

  7. Changes from baseline in waist/height ratio in the CPH group as compared to placebo/casein

    Height will be measured with a wall-mounted stadiometer. Waist circumference will be measured using anthropometric tape over light clothing. The minimum circumference between the iliac crest and the rib cage will be used.

    Measured: At baseline visit and end visit (week 12)

  8. Changes from baseline in the Quick1 surrogate marker forinsulin sensitivity in the CPH group as compared to placebo/casein

    Glucose and insulin will be measured in serum by routine laboratories. Quick1 will be calculated by 1 / (log(fasting insulin μU/mL) + log(fasting glucose mg/dL)

    Measured: At baseline visit and end visit (week 12)

  9. Changes from baseline in serum glucose in the CPH group as compared to placebo/casein

    Will be measured in serum by routine laboratories

    Measured: At baseline visit and end visit (week 12)

  10. Changes from baseline in serum insulin c-peptide in the CPH group as compared to placebo/casein

    Will be measured in serum by routine laboratories

    Measured: At baseline visit and end visit (week 12)

  11. Changes from baseline in serum insulin in the CPH group as compared to placebo/casein

    Will be measured in serum by routine laboratories

    Measured: At baseline visit and end visit (week 12)

  12. Changes from baseline in serum total cholesterol in the CPH group as compared to placebo/casein

    Will be measured in serum by routine laboratories

    Measured: At baseline visit and end visit (week 12)

  13. Changes from baseline in serum triacylglycerol (TAG) in the CPH group as compared to placebo/casein

    Will be measured in serum by routine laboratories

    Measured: At baseline visit and end visit (week 12)

  14. Change from baseline in serum non-esterified fatty acids (NEFA) in the CPH group as compared to placebo/casein

    Will be measured in serum by routine laboratories

    Measured: At baseline visit and end visit (week 12)

  15. Change from baseline in serum non-HDL cholesterol in the CPH group as compared to placebo/casein

    Will be measured in serum by routine laboratories

    Measured: At baseline visit and end visit (week 12)

  16. Change from baseline in serum CRP in the CPH group as compared to placebo/casein

    Will be measured in serum by routine laboratories

    Measured: At baseline visit and end visit (week 12)

  17. Change from baseline in serum HDL cholesterol/LDL cholesterol size ratio in the CPH group as compared to placebo/casein

    Lipoprotein profile will be analysed by exclusion gel chromatography.

    Measured: At baseline visit and end visit (week 12)

  18. Change from baseline in serum ceramides in the CPH group as compared to placebo/casein

    The ceramides in plasma will be analysed by LC-MS.

    Measured: At baseline visit and end visit (week 12)

  19. Change from baseline in fat mass/fat-free mass ratio in the CPH group as compared to placebo/casein

    Bioelectrical impedance measurement will be used for the assessment of body composition.

    Measured: At baseline visit and end visit (week 12)

  20. Changes in antioxidant capacity in the CPH group as compared to placebo/casein at week 12

    Measured in plasma by a commercial kit (Sigma Aldrich, MAK187)

    Measured: At baseline visit and end visit (week 12)

  21. Changes in serum acetylcarnitine/palmitoylcarnitine ratio in the CPH group as compared to placebo/casein at week 12

    Short-, medium-, and long-chain acylcarnitines, will be analysed in serum using LC/MS/MS.

    Measured: At baseline visit and end visit (week 12)

  22. Changes in serum octanoylcarnitine in the CPH group as compared to placebo/casein at week 12

    Plasma choline, betaine, free carnitine and its precursors: trimethyllysine and γ-butyrobetaine, as well as short-, medium-, and long-chain acylcarnitines, will be analysed in serum using LC/MS/MS. Stable isotope dilution LC/MS/MS will be used for quantification of trimethylamine oxide (TMAO), dimethylglycine (DMG), choline and betaine. Plasma metabolites of the TCA cycle and amino acids-kynurenine-nicotinamide pathway will be measured by LC-MS.

    Measured: At baseline visit and end visit (week 12)

  23. Changes in serum TMAO (trimethylamine N-oxide) in the CPH group as compared to placebo/casein at week 12

    Stable isotope dilution LC/MS/MS will be used for quantification of trimethylamine oxide (TMAO).

    Measured: At baseline visit and end visit (week 12)

  24. Changes from baseline in the serum anti-inflammatory fatty acid index in the CPH group as compared to placebo at Week 12.

    Fatty acid composition will be analysed using GC/MS. The anti-inflammatory fatty acid index is calculated as ((C22:5n-3 + C22:6n-3 + C20:3n-6 + C20:5n-3)/C20:4n-6)*100

    Measured: At baseline visit and end visit (week 12)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted8 Dec 2021
  2. Study start18 Jan 2021
  3. Primary completion30 Apr 2021
  4. Study completion30 Apr 2021

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Care provider, Outcomes assessor
Enrolment
58 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05149092
Sponsor's protocol ID
CPH-Study
Acronym
CHICKPEP
Status last verified
Nov 2023
First submitted
9 Mar 2021
Last updated
29 Nov 2023
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing Chicken protein hydrolysate supplement in people with Abdominal Obesity, run by University of Bergen at 1 site in Norway.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 29 Nov 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Norway. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Changes from baseline in waist circumference in the CPH group as compared to placebo/casein at week 12 (time frame: At baseline visit and end visit (week 12)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 29 Nov 2023.

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