FREE Living Hulled HEMP Seed and Oil Trial (FREEHEMP)

January 19, 2023 updated by: University of Manitoba
The objectives of this trial are to assess the effects of hemp product consumption, specifically hulled hemp seeds and hemp oil on blood fatty acid profiles and cardiovascular disease risk factors, in healthy overweight volunteers after 4 weeks of consumption.

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

The trial will be a 4 week double-blinded, randomized, cross-over design with 2 treatment intervention (hemp and control) periods separated by a 4 week washout period. Thirty metabolically healthy overweight volunteers will be recruited into the trial.

On day 1, and 27, 28 of each treatment period participants will be asked to come to the Richardson Center for Functional Foods and Nutraceuticals (RCFFN) for a 12 hour fasted blood sample. On day 1, participants will be given prepackaged sachets of treatment hulled seeds (hemp or sesame) and salad dressing, containing 30 g/d of treatment (hemp or soybean) oil (in individually packaged daily containers) will also be supplied.

Participants will be instructed by clinical coordinators to integrate the products (2 sachets of seeds, 1 salad dressing) into their daily meals and to avoid other dietary sources of n-3 fatty acids, such as flax, chia, camelina, krill and fish products. Participants will be given activity monitors to wear during the intervention periods. Participants will be required to eat one sachet of hulled seeds in the morning and one in the evening, and to consume the dressing throughout the day, for each 4 week treatment period.

Participants will be asked to continue their habitual diets, while avoiding large dietary sources of n-3 fatty acids, throughout the treatment and washout periods. Participants will be instructed to maintain the same level of physical activity and alcohol intake throughout the trial period. The trial coordinator will contact participants weekly via telephone or email to monitor treatment adherence and to answer any questions or concerns participants might have. Background dietary intakes will be measured at day 1 of the trial using a food frequency questionnaire, and during each treatment period by 3-day food record to be completed in the last week of each treatment period. Participants will be asked questions about the interventions including side effects, mood and perceived energy level by trial coordinators at the end of each intervention period.

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.
30

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

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Canada
    • Manitoba
      • Winnipeg, Manitoba, Canada, R3T 6C5
        • Richardson Centre for Functional Foods and Nutraceuticals, University of Manitoba

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

18 years to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Metabolically healthy overweight (BMI 25-35 kg/m2) participants aged 18-65,
  • Men and women with the ability to give written informed consent and comply with trial guidelines.

Exclusion Criteria:

  • Pregnancy or lactation
  • Smokers (tobacco products for the last 6 months)
  • History of cancer, rheumatoid arthritis, chronic illness, cardiovascular problems, liver and kidney disease, inflammatory bowel disease, pancreatitis, gallbladder or biliary disease, neurological/psychological disease, bleeding disorders, experienced platelet abnormalities, and gastrointestinal disorders that could interfere with fat absorption, serum glucose over ≥6.1 mmol/L, serum triglycerides (TG) >4.52 mmol/L, and/or LDL cholesterol (LDL-C) ≥6.5 mmol/L, hypertension (systolic blood pressure ≥160 mm Hg or diastolic blood pressure ≥100 mm Hg),
  • Body mass index (BMI; in kg/m2) ≥35
  • Consume or plan to consume anticoagulant,
  • Hypertension or lipid lowering medications, or hypotensive
  • Lipid lowering or n-3 PUFA dietary supplements
  • Reported consumption of more than 2 alcoholic drinks/day or history of alcoholism or drug dependence
  • Reported use of any experimental medication within 1 month prior to starting the trial.

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: Basic Science
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: Triple

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: Control
54 grams of hulled sesame seeds, consumed in 2 daily 27 gram portions, and 30 grams of soybean oil per day
Other: Control
Experimental: Hemp foods
60 grams of hulled hemp seeds,consumed in 2 daily 30 gram portions, and 30 grams of hemp oil per day
Other: Hemp foods

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
Change in red blood cell omega-3 fatty acid content
Time Frame: Baseline (Day 1) and Endpoint (Day 27,28) of each experimental period
Total lipids will be extracted from each fraction (whole plasma, RBC) and will be evaluated for its fatty acid composition using gas-chromatography linked with flame ionization detector
Baseline (Day 1) and Endpoint (Day 27,28) of each experimental period

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
Change in plasma lipids
Time Frame: Baseline (Day 1) and Endpoint (Day 27,28) of each experimental period
TC, HDL-C and TG in serum, will be determined by automated methods in duplicate on an auto-analyzer (VITROS 350). LDL-C concentrations will be calculated using the Friedewald equation.
Baseline (Day 1) and Endpoint (Day 27,28) of each experimental period
Change in inflammatory and endothelial function biomarkers
Time Frame: Baseline (Day 1) and Endpoint (Day 27,28) of each experimental period
Measurement of inflammatory biomarker such as CRP, IL-6 and TNF-α and cell adhesion molecules such as e-selectin, p-selectin, s-ICAM and s-VCAM, will be measured in multiplex on a Meso Scale Discovery platform.
Baseline (Day 1) and Endpoint (Day 27,28) of each experimental period
Change in blood pressure and arterial stiffness
Time Frame: Baseline (Day 1) and Endpoint (Day 27,28) of each experimental period
Blood pressure will be measure in conjunction with pulse wave velocity (PWV) and augmentation index (AI) to assess arterial stiffness using a Mobil-O-Graph, in triplicate.
Baseline (Day 1) and Endpoint (Day 27,28) of each experimental period
Change in glucose metabolism and insulin sensitivity
Time Frame: Baseline (Day 1) and Endpoint (Day 27,28) of each experimental period
Measurement of fasting glucose using an auto-analyzer, and insulin by radioimmunoassay, to investigate the impact of hemp product consumption on glucose metabolism and insulin sensitivity.
Baseline (Day 1) and Endpoint (Day 27,28) of each experimental period

Other Outcome Measures

Other Outcome Measures

For clinical trials, a planned measurement described in the protocol that is used to determine the effect of an intervention/treatment on participants. For observational studies, a measurement or observation that is used to describe patterns of diseases or traits, or associations with exposures, risk factors, or treatment. Types of outcome measures include primary outcome measure and secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Change in body composition
Time Frame: Measurements will be done at the beginning and end of each of the two 4-week treatment
Using a Dual Energy X-Ray Absorptiometry machine to analyze body composition, including measuring visceral adiposity
Measurements will be done at the beginning and end of each of the two 4-week treatment
Physical activity
Time Frame: from day 20-28 of each treatment period
The activity monitors will measure the participants' physical activity levels, steps taken, and the different amounts of time spent at different activity levels.
from day 20-28 of each treatment period

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 Manitoba

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

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.
August 1, 2015

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.
February 1, 2016

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 1, 2017

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).
March 23, 2015

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.
March 25, 2015

First Posted (Estimate)

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.
March 26, 2015

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.
January 23, 2023

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.
January 19, 2023

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.
April 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.
  • B2014:115-2

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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