The Effects of Dietary Supplementation on Serum Protein Glycosylation

NCT ID: NCT05040204

Last Updated: 2025-12-02

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE1

Total Enrollment

44 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-06-23

Study Completion Date

2026-09-01

Brief Summary

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Two randomized double-blind placebo-controlled clinical studies to assess the effects of dietary glycan monomer supplementation on the immune system, especially antibody glycosylation in healthy adults. Immune profiling and glycoproteomics will be performed on serum isolated at these same time points.

Detailed Description

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Conditions

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Healthy

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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Experimental Supplement 1

6 subjects will consume 12 grams of dietary supplement 1 daily for 4 weeks

Group Type EXPERIMENTAL

Monosaccharide Powder

Intervention Type DIETARY_SUPPLEMENT

Monosaccharide powder dissolved in water.

Experimental Supplement 2

6 subjects will consume 12 grams of dietary supplement 2 daily for 4 weeks

Group Type EXPERIMENTAL

Monosaccharide Powder

Intervention Type DIETARY_SUPPLEMENT

Monosaccharide powder dissolved in water.

Experimental Supplement 3

20 subjects will consume 50 grams of dietary supplement 3 daily for 4 weeks

Group Type EXPERIMENTAL

Monosaccharide Powder

Intervention Type DIETARY_SUPPLEMENT

Monosaccharide powder dissolved in water.

Placebo Comparator 1

6 subjects will consume 12 grams of placebo dietary supplement daily for 4 weeks

Group Type PLACEBO_COMPARATOR

Placebo Comparator

Intervention Type DIETARY_SUPPLEMENT

Placebo (glucose powder)

Placebo Comparator 2

6 subjects will consume 50 grams of placebo dietary supplement daily for 4 weeks

Group Type PLACEBO_COMPARATOR

Placebo Comparator

Intervention Type DIETARY_SUPPLEMENT

Placebo (glucose powder)

Interventions

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Monosaccharide Powder

Monosaccharide powder dissolved in water.

Intervention Type DIETARY_SUPPLEMENT

Placebo Comparator

Placebo (glucose powder)

Intervention Type DIETARY_SUPPLEMENT

Eligibility Criteria

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Inclusion Criteria

* Adult men/women (age 18-45) who are in general good health with Body Mass Index (BMI) range of 18.5-25

Exclusion Criteria

* Adults younger than 18 or older than 45 years of age
* Women who are pregnant, actively nursing or have had a pregnancy within the last year
* Women who are peri-menopausal or post-menopausal
* Women with irregular menstrual cycles (more frequently than every 21 days or lasts longer than 8 days. Missed, early, or late periods are also considered signs of an irregular cycle)
* Women on hormonal contraception, including birth control, hormonal intrauterine device, or contraceptive implant
* Individuals with past medical history of an autoimmune condition or malignancy, excluding non-melanoma skin cancer
* Individuals with cardiovascular, pulmonary, reproductive, endocrine, metabolic, neurologic, gastrointestinal, hematologic, or infectious diseases of any type
* Individuals with diagnosis of galactosemia or congenital disorders of glycosylation
* Individuals with phenylketonuria
* Individuals currently taking prescription medications, or who have taken prescription medications within the last 3 months
* Individuals currently taking over-the-counter medications
* Individuals currently taking or who have taken supplements including herbal, protein or vitamin supplements in the last 3 months (e.g. whey protein, St. John's Wort, green tea supplements, biotin, creatine supplements), excluding multivitamins or essential vitamins
* Individuals with BMI less than 18.5 or greater than 25
* Individuals with prior history of severe food or drug allergic reactions
* Individuals with allergic reaction or adverse reaction to shellfish, N-acetylglucosamine, galactose, Spirulina/chlorella/algae supplements, or arabinose containing compounds/foods/supplements
* Individuals with first-degree relative with history of an autoimmune condition
* Individuals with social history of current use of tobacco, alcohol or other drugs
* Actively dieting or trying to lose weight
* Vegan diet
* Consume equal to or greater than 2 cups of tea a day
* Consume equal to or greater than 4 cups of coffee a day
* Consume equal to or greater than 3 cups of fruit juice a day
* Practice intensive exercise patterns (marathon training, workouts \>4 hours a day)
* Consume soda or energy drinks of any amount
* Consume fast food equal to or greater than 5 days per week
* Consume greater than one serving of alcohol per day

* (1 serving of wine = 6 oz, 1 serving of beer = 12 oz, 1 serving of spirits = 1 oz)
* On a carbohydrate-restricted or "Paleo" diet, or calorie-restricted diet (less than 20-25% of maintenance calories)
* Adults unable to consent
* Prisoners
Minimum Eligible Age

18 Years

Maximum Eligible Age

45 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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National Institutes of Health (NIH)

NIH

Sponsor Role collaborator

National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)

NIH

Sponsor Role collaborator

University of California, Davis

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Emanual Maverakis, MD

Role: PRINCIPAL_INVESTIGATOR

University of California, Davis

Locations

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University of California, Davis Medical Center

Sacramento, California, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Emanual Maverakis, MD

Role: CONTACT

916-551-2635

Facility Contacts

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Monica Tran, BS

Role: primary

916-551-2634

Related Links

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Other Identifiers

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1K24AR077313-01A1

Identifier Type: NIH

Identifier Source: secondary_id

View Link

949221

Identifier Type: -

Identifier Source: org_study_id

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