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Healthy VolunteersNCT03773497

Bioavailability of Phytonutrients From Novel Preparations of Broccoli

A study testing Common Snack Combination, Cheesy Broccoli Snack and Cheesy Broccoli with Daikon Radish Snack in people with Healthy Volunteers, run by USDA Beltsville Human Nutrition Research Center at 1 site in United States.

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 primary objective of this study is to determine the effects of different methods of broccoli preparation on levels of urinary glucosinolate metabolites. The secondary objective is to determine the effects of different methods of broccoli preparation on levels of plasma carotenoids. Read more about this study

Who is it for?
Ages 21 to 75 yearsHealthy volunteers can take part
Conditions the study is for
Healthy Volunteers
What is being tested?
Common Snack Combination, Cheesy Broccoli Snack and Cheesy Broccoli with Daikon Radish Snack
Could I receive a placebo?
No, everyone receives an active treatment
How many people
16 participants
Where
1 siteUnited States
Study dates
16 Apr 2019to 28 Jun 2019
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 21 to 75 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Between 21 and 75 years old at beginning of study

Who cannot join

  • Pregnant, lactating, or intending to become pregnant during the study period
  • Women who have given birth during the previous 12 months
  • Presence of kidney disease, liver disease, gout, certain cancers, gastrointestinal disease, hyperthyroidism, untreated or unstable hypothyroidism, pancreatic disease, other metabolic diseases, or malabsorption syndromes requiring special diets
  • History of certain cancers within last 3 years
  • Known allergy or intolerance to Brassica vegetables
  • History of eating disorders or other dietary patterns which are not consistent with the dietary intervention (e.g., vegetarians, very low-fat diets, high-protein diets)
Show all 17Show fewer
  • Colonoscopy during three weeks prior to start of study
  • Unwillingness to abstain from probiotics or vitamin, mineral, herbal and glucosinolate/isothiocyanate supplements for two weeks prior to the study and during the study
  • Use of tobacco products within 6 months preceding study
  • Crohn's disease or diverticulitis
  • Suspected or known strictures, fistulas or physiological/mechanical GI obstruction
  • Use of certain medications (prescription or over-the-counter) that may interfere with the study objectives
  • Type 2 diabetes requiring the use of diabetes pills, insulin, or non-insulin shots
  • Fasting glucose greater than or equal to 126 mg/dL
  • Unable or unwilling to give informed consent or communicate with study staff
  • Self-report of alcohol or substance abuse within the past 12 months and/or current treatment for these problems (long-term participation in Alcoholics Anonymous is not an exclusion)
  • Other medical, psychiatric, or behavioral factors that in the judgment of the Principal Investigator may interfere with study participation or the ability to follow the intervention protocol

Trial locations and contacts

1 site in 1 country.

United States1 site
  • USDA-ARS Beltsville Human Nutrition Research Center

    Beltsville, Maryland, 20705

Other trials in United States

About this study

The primary objective of this study is to determine the effects of different methods of broccoli preparation on levels of urinary glucosinolate metabolites. The secondary objective is to determine the effects of different methods of broccoli preparation on levels of plasma carotenoids.

Read the detailed description

Consumption of Brassica vegetables (which include broccoli, cabbage, and kale) is inversely associated with the incidence of several cancers, including cancers of the lung, stomach, liver, colon, rectum, breast, endometrium, and ovaries. Brassica vegetables are a good source of many nutrients including glucosinolates and carotenoids. Glucosinolates are sulfur-containing compounds that are converted to bioactive metabolites by an enzyme called myrosinase, which is released when the vesicles containing myrosinase are ruptured by chewing or cutting. These bioactive compounds are considered to be active agents for cancer prevention. Their ability to reduce risk of cancer may derive in part from their ability to modulate foreign-substance metabolizing enzymes, which include enzymes called Phase I cytochrome P450s and Phase II enzymes. Carotenoids may also have a role in cancer prevention and other health benefits including reducing age-related macular degeneration, and therefore merit research to reveal factors that affect their presence in the body.

The primary aim of this study is to investigate how various preparations of broccoli impact levels of these healthful nutrients in humans.

Being tested
Common Snack Combination, Cheesy Broccoli Snack, Cheesy Broccoli with Daikon Radish Snack, Uncooked Broccoli Snack

What participants receive

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

  • Common Snack CombinationOther

    Combination of Chips, Pretzels, and Popcorn.

  • Cheesy Broccoli SnackOther

    Oven-roasted, freeze-dried, cheese flavored broccoli

  • Cheesy Broccoli with Daikon Radish SnackOther

    Oven-roasted, freeze-dried, cheese flavored broccoli with Daikon radish powder

  • Uncooked Broccoli SnackOther

    Uncooked, freeze-dried broccoli with ranch-type dip

Study groups in NCT03773497
Study groupRoleWhat they receive
Common snack combinationOtherSubjects will consume a self-chosen, low-carotenoid diet, and on the first day, with breakfast, will consume a snack of a combination of common snack foods (pretzels, potato chips, and popcorn).
Receives: Other: Common Snack Combination
Cheese broccoliOtherSubjects will consume a self-chosen, low-carotenoid diet, and on the first day, with breakfast, will consume a snack of oven-roasted, freeze-dried, cheese flavored broccoli.
Receives: Other: Cheesy Broccoli Snack
Cheese broccoli with Daikon radish powderOtherSubjects will consume a self-chosen, low-carotenoid diet, and on the first day, with breakfast, will consume a snack of oven-roasted, freeze-dried, cheese flavored broccoli with Daikon radish powder.
Receives: Other: Cheesy Broccoli with Daikon Radish Snack
Uncooked broccoli with ranch-type dipOtherSubjects will consume a self-chosen, low-carotenoid diet, and on the first day, with breakfast, will consume a snack of uncooked, freeze-dried broccoli with ranch-type dip.
Receives: Other: Uncooked Broccoli Snack

What is being measured

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

  1. Glucosinolate Metabolites will be measured

    Urine will be analyzed for glucosinolate metabolites

    Measured: Day 1

  2. Glucosinolate Metabolites will be measured

    Urine will be analyzed for glucosinolate metabolites

    Measured: Day 22

  3. Glucosinolate Metabolites will be measured

    Urine will be analyzed for glucosinolate metabolites

    Measured: Day 43

  4. Glucosinolate Metabolites will be measured

    Urine will be analyzed for glucosinolate metabolites

    Measured: Day 64

Secondary outcomes (1)
  1. Carotenoids will be measured

    Carotenoids will be extracted from plasma

    Measured: Days 1, 2, 3, 4, 11, 22, 23, 24, 25, 32, 43, 44, 45, 46, 53, 64, 65, 66, 67, 74

Timeline

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

  1. First posted12 Dec 2018
  2. Study start16 Apr 2019
  3. Primary completion28 Jun 2019
  4. Study completion28 Jun 2019

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
Other
Allocation
Randomised
Intervention model
Crossover
Masking
Double blind
Who is masked
Investigator, Outcomes assessor
Enrolment
16 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03773497
Sponsor's protocol ID
HS63 - Broccoli Snack Study
Status last verified
Aug 2019
First submitted
10 Dec 2018
Last updated
3 Sep 2019
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 Common Snack Combination, Cheesy Broccoli Snack and Cheesy Broccoli with Daikon Radish Snack in people with Healthy Volunteers, run by USDA Beltsville Human Nutrition Research Center at 1 site in United States.

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 17 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 3 Sep 2019. 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 United States. 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.

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?

Glucosinolate Metabolites will be measured (time frame: Day 1). The study lists 4 primary outcomes in all. 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 3 Sep 2019.

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