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Immune HealthNCT06012669

Effects of Lactoferrin at Two Doses vs. Active Control on Markers of Immune Function

A study testing High dose Human Lactoferrin and Low dose Human Lactoferrin in people with Immune Health, run by Midwest Center for Metabolic and Cardiovascular Research at 2 sites 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 purpose of this study is to evaluate the impact of 28-day supplementation with high-dose human recombinant lactoferrin, low-dose human recombinant lactoferrin, and an active control product formulated with bovine lactoferrin on indicators of immunity in healthy males and females. Read more about this study

Who is it for?
Ages 18 to 45 yearsHealthy volunteers can take part
Conditions the study is for
Immune Health
What is being tested?
High dose Human Lactoferrin and Low dose Human Lactoferrin
Could I receive a placebo?
No, everyone receives an active treatment
How many people
66 participants
Where
2 sitesUnited States
Study dates
6 Sep 2023to 27 Dec 2023
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 18 to 45 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Individual is male or premenopausal female (approximately half males and half females), 18 to 45 years of age, inclusive.
  • Individual has a BMI of ≥18.50 and <30.00 kg/m2.
  • Individual is judged to be in good health based on medical history and routine laboratory tests.
  • Individual agrees to abstain from alcohol consumption and vigorous physical activity for at least 24 h prior to all test visits. According to the World Health Organization (WHO), vigorous physical activity may include running, fast cycling, fast swimming, or moving heavy objects.
  • Individual understands the study procedures, and is willing to complete them, and signs forms documenting informed consent to participate in the study and authorization for release of relevant protected health information to the study Investigator.

Who cannot join

  • Individual is unwilling to avoid consumption of all dietary supplements (other than provided study products and multivitamin/mineral/calcium supplements) within 14 days of visit (day 0) and throughout the study period.
  • Individual is a chronic user of nicotine products.
  • Individual has a score <7 on the Vein Access Scale.
  • Individual has a positive test for illicit drugs on the urine drug screen.
  • Individual has a clinically significant medical condition that, in the opinion of the Investigator, could interfere with the interpretation of the study results.
  • Individual has an autoimmune disorder (e.g., type 1 diabetes, rheumatoid arthritis, Graves disease, multiple sclerosis, lupus, etc.).
Show all 21Show fewer
  • Individual has a gastrointestinal condition that would potentially interfere with absorption of the study product (e.g., inflammatory bowel disease, celiac disease, history of gastric bypass surgery, chronic gastritis).
  • Individual has used medication or over-the-counter products (including herbal and dietary supplements) that, in the opinion of the investigator, could interfere with the absorption and metabolism of lactoferrin or affect inflammatory or immune function markers including, but not limited to, aspirin, anti-inflammatories, antacids, histamine 2 receptor antagonists, laxatives, stool softeners, and proton-pump inhibitors.
  • Individual has had a weight change of ±4.5 kg (10 lbs.) in the previous 3 months.
  • Individual has extreme dietary habits (e.g., Atkins, vegan, very low carbohydrate diet).
  • Individual has history of bariatric surgery, is currently taking a weight loss drug, or is actively attempting to lose or gain body weight.
  • Individual has an active infection or signs/symptoms of an infection. Test visits will be rescheduled to allow the subject to be symptom-free of any type of systemic infection for at least five days.
  • Individual has recent use of antibiotics (within 7 days of visit 2, day 0) and throughout the study period. The test days will be rescheduled to allow the subject to wash out the antibiotic for at least 7 days.
  • Individual has uncontrolled hypertension (systolic blood pressure ≥160 mm Hg and/or diastolic blood pressure ≥100 mm Hg) at screening.
  • Individual has a history of cancer in the prior 2 years, except non-melanoma skin cancer or carcinoma in situ of the cervix.
  • Individual has an allergy or sensitivity to any components of the study products.
  • Individual has an allergy or sensitivity to yeast.
  • Individual is a female who is pregnant, planning to be pregnant during the study period, lactating, or is of childbearing potential and is unwilling to commit to the use of a medically approved form of contraception throughout the study period.
  • Individual has been exposed to any non-registered drug product within 30 days of the screening visit.
  • Individual has a current or recent history (past 12 months of screening) or strong potential for illicit drug or excessive alcohol intake defined as >14 drinks per week (1 drink = 12 oz beer, 5 oz wine, or 1.5 oz hard liquor).
  • Individual has a condition the Investigator believes would interfere with his/her/their ability to provide informed consent, comply with the study protocol, which might confound the interpretation of the study results or put the person at undue risk.

Trial locations and contacts

2 sites in 1 country.

United States2 sites
  • Suncoast Research

    Miami, Florida, 33135

  • Health Awareness

    Port Saint Lucie, Florida, 34952

Other trials in United States

About this study

Official title: A Randomized, Double-blind, Controlled, Parallel-arm Trial to Assess the Effects of Lactoferrin at Two Doses vs. Active Control on Markers of Immune Function in Healthy Adults

The purpose of this study is to evaluate the impact of 28-day supplementation with high-dose human recombinant lactoferrin, low-dose human recombinant lactoferrin, and an active control product formulated with bovine lactoferrin on indicators of immunity in healthy males and females.

Read the detailed description

Samples will be retained for possible analyses such as lactoferrin absorption, distribution, metabolism, and excretion (ADME) and gut microbiota.

Conditions
Immune Health
Being tested
High dose Human Lactoferrin, Low dose Human Lactoferrin, Active Control Bovine Lactoferrin

What participants receive

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

  • High dose Human LactoferrinDietary supplement

    Dietary Supplement and Food Ingredient

  • Low dose Human LactoferrinDietary supplement

    Dietary Supplement and Food Ingredient

  • Active Control Bovine LactoferrinDietary supplement

    Dietary Supplement and Food Ingredient

Study groups in NCT06012669
Study groupRoleWhat they receive
Low DoseExperimental0.34 g Recombinant Human Lactoferrin
Receives: Dietary Supplement: Low dose Human Lactoferrin
High DoseExperimental3.4 g Recombinant Human Lactoferrin
Receives: Dietary Supplement: High dose Human Lactoferrin
Active ControlActive comparator3.4 g Bovine Lactoferrin
Receives: Dietary Supplement: Active Control Bovine Lactoferrin

What is being measured

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

  1. Antibodies

    Change from baseline in anti-lactoferrin antibodies

    Measured: 0, 8 weeks

Secondary outcomes (2)
  1. Markers of Immune Function

    Change from baseline in markers of Immune Function (such as biomarkers of inflammation)

    Measured: 0, 4 weeks, 8 weeks, 12 weeks

  2. Markers of Immune Function

    Change from baseline in markers of Immune Function (such as T-cell responses to lactoferrin and related peptides)

    Measured: 0, 8 weeks

Timeline

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

  1. First posted25 Aug 2023
  2. Study start6 Sep 2023
  3. Primary completion27 Dec 2023
  4. Study completion27 Dec 2023

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
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
66 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06012669
Sponsor's protocol ID
MB-2305
Status last verified
Jun 2025
First submitted
16 Aug 2023
Last updated
11 Jun 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Peterson RD, Guarneiri LL, Adams CG, Wilcox ML, Clark AJ, Rudemiller NP, Maki KC, Malinczak CA. A Randomized, Double-Blind, Controlled Trial to Assess the Effects of Lactoferrin at Two Doses vs. Active Control on Immunological and Safety Parameters in Healthy Adults. Int J Toxicol. 2025 Jan-Feb;44(1):12-28. doi: 10.1177/10915818241293723. Epub 2024 Oct 28.

    PubMed 39465888
  • Peterson RD, van der Made J, Donovan SM, Wang M, Dilger RN, Kaplan N, Clark AJ. Effects of Human Lactoferrin (Effera(R)) at Two Doses Versus Bovine Lactoferrin on the Adult Gut Microbiome and Fecal Short-Chain Fatty Acids: a Randomized, Double-Blind Trial. J Diet Suppl. 2026;23(3):415-439. doi: 10.1080/19390211.2026.2673021. Epub 2026 May 24.

    PubMed 42178844

Questions about this trial

What is this clinical trial studying?

A study testing High dose Human Lactoferrin and Low dose Human Lactoferrin in people with Immune Health, run by Midwest Center for Metabolic and Cardiovascular Research at 2 sites 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 5 inclusion and 21 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 11 Jun 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites 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?

Antibodies (time frame: 0, 8 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT06012669, which also lists 2 linked publications.

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 11 Jun 2025.

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