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Beta Glucan's Effect on Pembrolizumab Immunologic Response in Stage III-IV Melanoma

Beta Glucan's Effect on Pembrolizumab Immunologic Response in Stage III-IV Melanoma

Status
Recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04513028
Enrollment
30
Registered
2020-08-14
Start date
2020-11-03
Completion date
2027-01-15
Last updated
2025-10-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Melanoma Stage III, Melanoma Stage IV

Brief summary

The purpose of this study is to determine how beta-glucan affects the immune system in subjects with melanoma.

Detailed description

This is a clinical pilot study using oral beta-glucan on patients with advanced stage III-IV melanoma without evidence of disease receiving adjuvant Pembrolizumab. The aim is to see whether beta-glucan treatment in combination with Pembrolizumab may provide augmented immunologic phenotypes such as decreased peripheral MDSCs, enhanced T effector cell function, or enhanced cytokine production in the peripheral blood or plasm of enrolled subjects. Secondary outcome measures will include clinical endpoints such as recurrence, progression free survival and overall survival.

Interventions

DIETARY_SUPPLEMENTBeta-Glucan

500mg (1 capsule) by mouth twice a day for 21 days.

Sponsors

Kelly McMasters
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Any patients with suspected (clinical) or definitive (tissue) diagnosis of Stage III-IV melanoma starting or continuing adjuvant Pembrolizumab without active evidence of disease (NED). * Must be treatment naïve or have had treatment no less than 6 months prior to enrollment * 18 years or older * Must be able to take pills * ECOG performance status of 0-3 * Ability to understand and willingness to sign a written informed consent * Members of all racial and ethnic groups are eligible for this study

Exclusion criteria

* History of hypersensitivity reactions attributed to beta-glucan * Patients receiving continuous or other ongoing immunosuppressive therapy * Uncontrolled intercurrent illness including, but not limited to, autoimmune diseases, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements * Any patients who have serious autoimmune toxicity during the study period, or those who have disease recurrence during the 6-week study period should be excluded and analyzed separately * Patients with mucosal melanoma * Patients with concurrent malignancy or recent history thereof

Design outcomes

Primary

MeasureTime frameDescription
Changes in percent of lymphocyte cell surface expression markersBlood for analysis will be drawn at baseline (Day 0), 3 weeks post pembrolizumab treatment, and 3 weeks post pembrolizumab plus oral beta-glucan treatment.The investigators will quantify percent of lymphocyte cell surface e (i.e., CD45, CD3, CD11b, etc.) from each sample collected by mass cytometry \*CyTOF) or flow cytometry
Changes in absolute number of lymphocyte cell surface expression markersBlood for analysis will be drawn at baseline (Day 0), 3 weeks post pembrolizumab treatment, and 3 weeks post pembrolizumab plus oral beta-glucanThe investigators will quantify absolute number of lymphocyte cell surface (i.e., CD45, CD3, CD11b, etc.) from each sample collected by mass cytometry (CyTOF) or flow cytometry
Changes in the mean fluorescent intensity of lymphocyte cell surface expression markersBlood for analysis will be drawn at baseline (Day 0), 3 weeks post pembrolizumab treatment, and 3 weeks post pembrolizumab plus oral beta-glucanThe investigators will quantify mean fluorescent intensity of lymphocyte cell surface (i.e., CD45, CD3, CD11b, etc.) from each sample collected by mass cytometry \*CyTOF) or flow cytometry
Changes in percent of intracellular cytokine expression markersBlood for analysis will be drawn at baseline (Day 0), 3 weeks post pembrolizumab treatment, and 3 weeks post pembrolizumab plus oral beta-glucanThe investigators will quantify percent of intracellular cytokine expression (TNFa, IFNg, etc.) from each sample collected by mass cytometry (CyTOF) or flow cytometry
Changes in absolute number of intracellular cytokine expression markersBlood for analysis will be drawn at baseline (Day 0), 3 weeks post pembrolizumab treatment, and 3 weeks post pembrolizumab plus oral beta-glucanThe investigators will quantify absolute number of intracellular cytokine expression (TNF-a, IFNg, etc.) from each sample collected by mass cytometry (CyTOF) or flow cytometry
Changes in fluorescent intensity of intracellular cytokine expression markersBlood for analysis will be drawn at baseline (Day 0), 3 weeks post pembrolizumab treatment, and 3 weeks post pembrolizumab plus oral beta-glucanThe investigators will quantify fluorescent intensity of intracellular cytokine expression (TNF-a, IFNg, etc.) from each sample collected by mass cytometry (CyTOF) or flow cytometry

Countries

United States

Contacts

Primary ContactMatthew Woeste, MD
matthew.woeste@louisville.edu502-852-0325

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026