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Insulin SensitivityEarly Phase 1OPUS-WP3CNCT02412995

The Effects of Sea Buckthorn and Strawberry on Postprandial Glycaemia, Insulinemia and Appetite

A Early Phase 1 study testing Meal sequence 1-2-3, Meal sequence 1-3-2 and Meal sequence 2-3-1 in people with Insulin Sensitivity and Glucose Intolerance, run by University of Copenhagen at 1 site in Denmark.

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

The effects of strawberry and sea buckthorn on postprandial glycaemia and insulinemia as well as on metabolic profiles were examined in overweight or obese male subjects. The study was conducted as a randomised, controlled, single-blinded, 3-way crossover study. Read more about this study

Who is it for?
Ages 20 to 50 years, men onlyHealthy volunteers can take part
Conditions the study is for
Insulin Sensitivity, Glucose Intolerance
What is being tested?
Meal sequence 1-2-3, Meal sequence 1-3-2 and Meal sequence 2-3-1
Could I receive a placebo?
No, everyone receives an active treatment
How many people
18 participants
Where
1 siteDenmark
Study dates
Oct 2012to Feb 2015
Phase
Early Phase 1
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 50 years
  • Men only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Healthy, male, aged 20-50 years and body mass index (BMI) 25-35 kg/m2

Who cannot join

  • Any current or chronic clinical conditions
  • Chronic/frequent use of medication
  • Smoking
  • Blood donation
  • High level of strenuous physical activity (>10h/week)
  • High habitual alcohol consumption (>14 drinks/week)
  • Present or previous drug abuse
  • Participation in other human intervention studies, and obesity surgery

Trial locations and contacts

1 site in 1 country.

Denmark1 site
  • Department of Nutrition, Exercise and Sports, University of Copenhagen

    Frederiksberg C, 1958

Other trials in Denmark

About this study

Official title: The Effects of Sea Buckthorn and Strawberry on Postprandial Glycaemia, Insulinemia and Appetite - A Randomised, Controlled, Crossover Study of Danish Berries in Overweight and Obese Male Subjects

The effects of strawberry and sea buckthorn on postprandial glycaemia and insulinemia as well as on metabolic profiles were examined in overweight or obese male subjects. The study was conducted as a randomised, controlled, single-blinded, 3-way crossover study. Eighteen subjects were studied in three 2 h meal tests followed by a subsequent ad libitum meal. Test meals contained either sea buckthorn, strawberry or no berries and added sucrose to match with respect to sucrose content. Blood samples were collected at baseline and several times postprandially. Subjective appetite sensations were recorded at baseline and every 15-20 min until 140 min and a subsequent ad libitum intake was recorded. Urine samples were also collected at baseline and at several time intervals until 24 hours. Blood and urine were subjected to metabolic profiling to investigate potential biomarkers of berry intake.

Read the detailed description

Purpose: Berries and mixed berry products exert acute effects on postprandial glycaemia and insulinemia, but very few berries have been studied, and primarily in normal weight subjects. Sea buckthorn and strawberry are compositionally widely different berries and may likely produce different responses. The effects of strawberry and sea buckthorn on postprandial glycaemia and insulinemia were examined in overweight or obese male subjects. Subjective appetite sensations and ad libitum intake were also examined. Berries may thus improve health in longer studies; however, accurate assessment of berry intake is still problematic. The discovery of objective biomarkers for intake of berries is therefore important in assessing both intake and compliance. The investigators aimed to identify urinary exposure markers of two very different berries, strawberry and sea buckthorn, in humans.

Methods: The study was conducted as a randomised, controlled, single-blinded, 3-way crossover study. Eighteen subjects were studied in three 2 h meal tests followed by a subsequent ad libitum meal. Test meals contained either sea buckthorn, strawberry or no berries and added sucrose to match with respect to sucrose content. Blood samples were collected at t = 0, 30, 45, 60, 90 and 120 min. Subjective appetite sensations were recorded at t = 0, 15, 30, 45, 60, 90, 120 and 140 min and subsequent ad libitum intake was recorded. Statistical differences in all continuous measures were evaluated based on the existence of a meal or a time-meal interaction by repeated measurements analyses or differences in the area under the curve (AUC) for that measure in a linear mixed model. Urine samples were collected on each test day at t=-15min, t=0-1h, t=1-2h, and t=2-24h and were analyzed by untargeted metabolomics. Multivariate analysis was applied to discover markers, followed by molecular fragmentation to ease their chemical identification.

Being tested
Meal sequence 1-2-3, Meal sequence 1-3-2, Meal sequence 2-3-1, Meal sequence 2-1-3, Meal sequence 3-1-2
Keywords
sea buckthorn, strawberry, glucose response, satiety, metabolomics, intake biomarker
Medical subject headings
Insulin Resistance, Glucose Intolerance

What participants receive

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

  • Meal sequence 1-2-3Other

    The subjects were studied in three 2 h meal tests with a subsequent ad libitum meal on separate days, at least two days apart. The subjects were individually randomised to the sequence of the test meals using random permutation. The study included two berry meals based on 150 g of frozen berries; sea buckthorn (Hippophaë rhamnoides) and strawberry (Fragaria x ananassa), respectively, and one control meal which did not contain berries. Each meal contained 35 g of sucrose and was adjusted for protein and fat with whey protein and canola oil, respectively. The meals were served with 120 mL of water.

  • Meal sequence 1-3-2Other

    The subjects were studied in three 2 h meal tests with a subsequent ad libitum meal on separate days, at least two days apart. The subjects were individually randomised to the sequence of the test meals using random permutation. The study included two berry meals based on 150 g of frozen berries; sea buckthorn (Hippophaë rhamnoides) and strawberry (Fragaria x ananassa), respectively, and one control meal which did not contain berries. Each meal contained 35 g of sucrose and was adjusted for protein and fat with whey protein and canola oil, respectively. The meals were served with 120 mL of water.

  • Meal sequence 2-3-1Other

    The subjects were studied in three 2 h meal tests with a subsequent ad libitum meal on separate days, at least two days apart. The subjects were individually randomised to the sequence of the test meals using random permutation. The study included two berry meals based on 150 g of frozen berries; sea buckthorn (Hippophaë rhamnoides) and strawberry (Fragaria x ananassa), respectively, and one control meal which did not contain berries. Each meal contained 35 g of sucrose and was adjusted for protein and fat with whey protein and canola oil, respectively. The meals were served with 120 mL of water.

  • Meal sequence 2-1-3Other

    The subjects were studied in three 2 h meal tests with a subsequent ad libitum meal on separate days, at least two days apart. The subjects were individually randomised to the sequence of the test meals using random permutation. The study included two berry meals based on 150 g of frozen berries; sea buckthorn (Hippophaë rhamnoides) and strawberry (Fragaria x ananassa), respectively, and one control meal which did not contain berries. Each meal contained 35 g of sucrose and was adjusted for protein and fat with whey protein and canola oil, respectively. The meals were served with 120 mL of water.

  • Meal sequence 3-1-2Other

    The subjects were studied in three 2 h meal tests with a subsequent ad libitum meal on separate days, at least two days apart. The subjects were individually randomised to the sequence of the test meals using random permutation. The study included two berry meals based on 150 g of frozen berries; sea buckthorn (Hippophaë rhamnoides) and strawberry (Fragaria x ananassa), respectively, and one control meal which did not contain berries. Each meal contained 35 g of sucrose and was adjusted for protein and fat with whey protein and canola oil, respectively. The meals were served with 120 mL of water.

  • Meal sequence 3-2-1Other

    The subjects were studied in three 2 h meal tests with a subsequent ad libitum meal on separate days, at least two days apart. The subjects were individually randomised to the sequence of the test meals using random permutation. The study included two berry meals based on 150 g of frozen berries; sea buckthorn (Hippophaë rhamnoides) and strawberry (Fragaria x ananassa), respectively, and one control meal which did not contain berries. Each meal contained 35 g of sucrose and was adjusted for protein and fat with whey protein and canola oil, respectively. The meals were served with 120 mL of water.

Study groups in NCT02412995
Study groupRoleWhat they receive
Meal sequence 1-2-3ExperimentalThe three meals, sea buckthorn puree, strawberry puree, or placebo (sugar drink) were allocated a number (1-3) in a blinded fashion and given to the participants in the order 1-2-3
Receives: Other: Meal sequence 1-2-3
Meal sequence 1-3-2ExperimentalThe three meals, sea buckthorn puree, strawberry puree, or placebo (sugar drink) were allocated a number (1-3) in a blinded fashion and given to the participants in the order 1-3-2
Receives: Other: Meal sequence 1-3-2
Meal sequence 2-3-1ExperimentalThe three meals, sea buckthorn puree, strawberry puree, or placebo (sugar drink) were allocated a number (1-3) in a blinded fashion and given to the participants in the order 2-3-1
Receives: Other: Meal sequence 2-3-1
Meal sequence 2-1-3ExperimentalThe three meals, sea buckthorn puree, strawberry puree, or placebo (sugar drink) were allocated a number (1-3) in a blinded fashion and given to the participants in the order 2-1-3
Receives: Other: Meal sequence 2-1-3
Meal sequence 3-1-2ExperimentalThe three meals, sea buckthorn puree, strawberry puree, or placebo (sugar drink) were allocated a number (1-3) in a blinded fashion and given to the participants in the order 3-1-2
Receives: Other: Meal sequence 3-1-2
Meal sequence 3-2-1ExperimentalThe three meals, sea buckthorn puree, strawberry puree, or placebo (sugar drink) were allocated a number (1-3) in a blinded fashion and given to the participants in the order 3-2-1
Receives: Other: Meal sequence 3-2-1

What is being measured

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

  1. Glycemia Area under the plasma glucose concentration curve, concentration curve.

    Area under the plasma glucose concentration curve, concentration curve.

    Measured: postprandially 0-120min

Secondary outcomes (8)
  1. Insulin response Area under the plasma insulin concentration curve

    Area under the plasma insulin concentration curve

    Measured: postprandially 0-120min

  2. Appetite scores (visual analogue scale)

    Measured on a 100 mm visual analogue scale spanning the sensation from minimum to maximum on the following: hunger, satiety, fullness, perceived prospective food intake, thirst, well-being, and desire for something sweet.

    Measured: postprandially 0-140min

  3. urine metabolic profile

    Urine samples were collected on each test day at t=-15min, t=0-1h, t=1-2h, and t=2-24h and were analyzed by untargeted metabolomics (UPLC-QTOF)

    Measured: 0-24 hrs

  4. plasma metabolic profile (metabolic profiling by UPLC-QTOF)

    Blood samples were drawn at t = -20 (baseline), 30, 45, 60, 90 and 120 min on each test day and subjected to untargeted metabolic profiling by UPLC-QTOF

    Measured: 0-120min

  5. Meal perception VAS questionnaire

    A VAS questionnaire concerning meal perception with ratings for taste (poor/good), smell (not appetising/appetising), appearance (not appetising/appetising), undertaste (none/much), and overall impression (not appetising/appetising).

    Measured: postprandially at 30min and 140 min

  6. Incremental area under the plasma glucose concentration curve

    The area under the initial part of the glucose plasma curve from the volunteer has ingested the sugar solution until 60 min later

    Measured: postprandially, 0-30 and 0-60min

  7. Glycemic profile (calculated as the time in minutes during which the blood glucose concentration is above baseline concentration divided by the incremental peak value of blood glucose)

    Gycemic profile((calculated as the time in minutes during which the blood glucose concentration is above baseline concentration divided by the incremental peak value of blood glucose)

    Measured: 0-120 min

  8. Incremental insulin response Incremental area under the plasma insulin concentration curve.

    Incremental area under the plasma insulin concentration curve.

    Measured: Postprandially 0-30 and 0-60 min

Timeline

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

  1. First posted9 Apr 2015 (estimated)
  2. Study startOct 2012
  3. Primary completionNov 2012
  4. Study completionFeb 2015

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
Early Phase 1
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Crossover
Masking
Single blind
Who is masked
Investigator
Enrolment
18 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02412995
Sponsor's protocol ID
M208
Acronym
OPUS-WP3C
Status last verified
Apr 2015
First submitted
8 Feb 2015
Last updated
9 Apr 2015
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Early Phase 1 study testing Meal sequence 1-2-3, Meal sequence 1-3-2 and Meal sequence 2-3-1 in people with Insulin Sensitivity and Glucose Intolerance, run by University of Copenhagen at 1 site in Denmark.

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 1 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 9 Apr 2015. 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 Denmark. 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. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Early Phase 1 (sometimes called Phase 0) studies give a very small amount of a treatment to a few people, mainly to see how the body handles it.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

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?

Glycemia Area under the plasma glucose concentration curve, concentration curve. (time frame: postprandially 0-120min). 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 9 Apr 2015.

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