Effect of Plant and Animal Proteins on Biomarkers of Colorectal Cancer and Type 2 Diabetes in Healthy Adults (ScenoProt) (ScenoProt)

September 24, 2021 updated by: Anne-Maria Pajari, University of Helsinki

Effects of Dietary Plant and Animal Proteins on Biomarkers of Colorectal Cancer and Type 2 Diabetes in Healthy Adults

The aim of this study is to investigate the effects of dietary plant and animal proteins on gut metabolism and markers for colorectal cancer as well as blood protein metabolites and markers for type 2 diabetes in healthy adults. The study participants will be stratified into three groups with different protein composition in diets: 1) animal 70%/plant 30%; 2) animal 50%/plant 50% and 3) animal 30%/plant 70%. The participants will get part of their diet as ready foods or raw material to promote their compliance. The participants will also get personal advice for their diets. Blood, stool and urine samples will be collected in the beginning and in the end of the 12 week intervention, as well as phenotype measures like BMI, blood pressure and body composition. The participants will also fill food diary before and in the end of the intervention.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

A human intervention study with healthy volunteers will be carried out to compare the effects of animal and plant-based protein sources on gut metabolism and markers for colorectal cancer as well as blood protein metabolites and markers for type 2 diabetes.

The study will be done in parallel-design, randomized fashion, with healthy human volunteers aged 20 - 69 years. Exclusion criteria will be as follows: strict vegan, regular user of fish oil or other food supplements, extreme sports, inflammatory bowel disease, colon irritable, celiac disease, continuous antibiotics or less than three months of the latest antibiotics use, type 2 diabetes and hormonal, liver or kidney disease. Duration of the intervention will be 12 weeks.

Intervention groups will be as follows (n=50/group):

Group 1: Dietary proteins from animal sources 70% and from plant sources 30%, representing an average Finnish diet consumed at the moment.

Group 2: Dietary proteins from animal sources 50% and from plant sources 50%, containing at most 500 g red meat/week (according to the current Finnish Nutrition Recommendations).

Group 3: Dietary proteins from animal sources 30% and from plant sources 70%.

The intake of total protein will be kept at similar level compared to habitual, but intakes of fat and carbohydrates may vary as composing a diet with plant-based protein sources inevitably causes changes for example in dietary fibre intake. We will aim at controlling other potential dietary confounders to the extent that is possible in a whole-diet approach. This will ensure the feasibility of the diets and facilitate future applications in dietary practices at the population level.

Before starting the intervention, the persons will get dietary advice how to fulfill their diets. They will get part of foods free to help to implement the diets and to enhance compliance.

Blood, urine and fecal samples will be collected at the baseline (at the beginning of the intervention) and at the end of the intervention. Dietary intake and food consumption during the intervention will be followed by 3-day food records in the beginning and at the end of the intervention period. Nutrient intakes will be calculated using AIVO program.

The following data collection and analyses will be carried out at the beginning and at the end of intervention:

  • height, weight, waist circumference
  • body composition by bioelectrical impedance analysis
  • resting blood pressure, hemoglobin
  • fasting lipid profile in the blood (total cholesterol, LDL and HDL, triglycerides)
  • fasting glucose and insulin, HbA1c in the blood
  • markers for low-grade inflammation in the blood: hs-CRP, cytokines such as IL-1beta, IL-6, IL-10
  • protein metabolomics in the blood
  • markers of nutritional status in the bood: vit. D25-OH, carotenoids, vitamin C and B12, alkyl resorcinols
  • urea/nitrogen in the urine
  • measures of gut metabolism and risk markers for colorectal cancer: total N-nitroso compounds in the feces, plant-derived polyphenol metabolites in the feces, concentration of bile acids, cytotoxicity and genotoxicity assays of fecal water samples in 2D and 3D colon cancer cell cultures and gut microbiota analyses.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
147

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

20 years to 69 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

Healthy, no exclusion criteria listed below.

Exclusion Criteria:

Strict vegan, food allergies, oral medication for any allergies, regular use of food supplements, extreme sports, inflammatory bowel disease, colon irritable, caeliac disease, any kind of cancer within 5 years, continuous antibiotics or less than three months of the latest antibiotics use, type 1 or 2 diabetes, hormonal, liver or kidney disease, pregnancy, lactation.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Active Comparator: 70% animal, 30% plant proteins in diet
Dietary proteins from animal sources 70% and from plant sources 30%, representing an average Finnish diet consumed at the moment.
Other: 70% animal, 30% plant proteins in diet
Diet contains 70% of proteins from animal sources (beef, pork, chicken, dairy products, fish) and 30% from plant sources (bread and cereals).
Experimental: 50% animal, 50% plant proteins in diet
Dietary proteins from animal sources 50% and from plant sources 50%, containing at most 500 g red meat/week (according to the current Finnish Nutrition Recommendations).
Other: 50% animal, 50% plant proteins in diet
Diet contains 50% of proteins from animal sources (beef, pork, chicken, dairy products, fish) and 50% from plant sources (bread and cereals, legumes, nuts, seeds, soy products).
Experimental: 30% animal, 70% plant proteins in diet
Dietary proteins from animal sources 30% and from plant sources 70%.
Other: 30% animal, 70% plant proteins in diet
Diet contains 30% of proteins from animal sources (beef, pork, chicken, dairy products, fish) and 70% from plant sources (bread and cereals, legumes, nuts, seeds, soy products).

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Changes in the composition of gut microbiota and glucose metabolism as measures of modification of dietary protein composition
Time Frame: 12 weeks
The composition of gut microbiota is measured using HITChip phylogenetic microarray. Glucose tolerance test is carried out to analyze glucose metabolism in the beginning and in the end of the intervention.
12 weeks
Changes in the intake of nutrients and nutritional status of participants as a measure of diet modification
Time Frame: 12 weeks
The changes in the markers for nutritional status in the blood: vit. D25-OH, carotenoids, vitamin C and B12, ferritin, alkyl resorcinols. The intake of nutrients is calculated from 4-day food diaries.
12 weeks

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Changes in the concentrations of metabolites derived from plant and animal-based foods in fecal water and urine
Time Frame: 12 weeks
Concentrations of metabolites derived from plant-based foods in fecal water are measured using UPLC (ultra performance liquid chromatography). Concentrations of fecal nitroso compounds as a measure of red meat consumption is measured as apparent total nitroso compounds.
12 weeks
Genotoxicity testing of human fecal water in 2D and 3D cell cultures
Time Frame: 12 weeks
Fecal water is isolated from fecal samples collected in the beginning and in the end of intervention period. The samples are tested for markers of genotoxicity in 2D and 3D cell cultures.
12 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
University of Helsinki

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Natural Resources Institute Finland
Makery Ltd, Finland

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Anne-Maria Pajari, PhD, University of Helsinki

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
November 29, 2016

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
June 30, 2017

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
September 24, 2021

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
June 30, 2017

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
June 30, 2017

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
July 2, 2017

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
September 27, 2021

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 24, 2021

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
September 1, 2021

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • ScenoProt-HY

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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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