NCT04590508

Brief Summary

A pilot study to assess the safety and tolerability of an orally administered natural product derived from hops, called xanthohumol, in humans with Crohn's Disease, in order to identify a biological signature of xanthohumol exposure, and to characterize the role of xanthohumol metabolism by intestinal microorganisms in that signature within adults with Crohn's Disease.

Trial Health

55
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
20

participants targeted

Target at below P25 for phase_2

Timeline
Completed

Started Oct 2020

Longer than P75 for phase_2

Geographic Reach
1 country

1 active site

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

September 28, 2020

Completed
3 days until next milestone

Study Start

First participant enrolled

October 1, 2020

Completed
18 days until next milestone

First Posted

Study publicly available on registry

October 19, 2020

Completed
3.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 22, 2024

Completed
11 months until next milestone

Study Completion

Last participant's last visit for all outcomes

July 30, 2025

Completed
Last Updated

October 18, 2024

Status Verified

October 1, 2024

Enrollment Period

3.9 years

First QC Date

September 28, 2020

Last Update Submit

October 16, 2024

Conditions

Keywords

Crohn's DiseaseInflammatory Bowel DiseaseIBDXanthohumolHumulus lupulusHops

Outcome Measures

Primary Outcomes (6)

  • Change from Baseline: Aspartate aminotransferase (AST)

    Aspartate aminotransferase is an enzyme that is often measured in blood as an indication of liver toxicity. Reported as: % abnormal, % new abnormals, and mean change from baseline.

    2 weeks, 4 weeks, 6 weeks, and 8 weeks

  • Change from Baseline:Alanine aminotransferase (ALT)

    Alanine aminotransferase is an enzyme that is often measured in blood as an indication of liver toxicity. Reported as: % abnormal, % new abnormals, and mean change from baseline.

    2 weeks, 4 weeks, 6 weeks, and 8 weeks

  • Change from Baseline: gamma-Glutamyl transferase (GGT)

    Gamma-glutamyl transferase is an enzyme that is often measured in blood as an indication of liver toxicity. Reported as: % abnormal, % new abnormals, and mean change from baseline.

    2 weeks, 4 weeks, 6 weeks, and 8 weeks

  • Change from Baseline: Estimated glomerular filtration rate

    Glomerular filtration rate is estimated based on blood creatinine concentration per standard nephrology practice. Reported as: % abnormal, % new abnormals, and mean change from baseline.

    2 weeks, 4 weeks, 6 weeks, and 8 weeks

  • Change from Baseline: Blood urea nitrogen to creatinine ratio

    Blood urea nitrogen:creatinine is a ratio of serum concentrations of two compounds associated with renal function. Reported as: % abnormal, % new abnormals, and mean change from baseline.

    2 weeks, 4 weeks, 6 weeks, and 8 weeks

  • Change from Baseline: Complete blood count

    Enumeration of the various subtypes of blood cells (i.e., red blood cells, white blood cells, and platelets), plus indices including mean corpuscular hemoglobin (MCH), mean corpuscular volume (MCV), and hemocrit. Reported as: % abnormal, % new abnormals, and mean change from baseline.

    2 weeks, 4 weeks, 6 weeks, and 8 weeks

Secondary Outcomes (3)

  • Change from Baseline: Composite Symptoms: Crohn's Disease Activity Index (CDAI)

    2 weeks, 4 weeks, 6 weeks, and 8 weeks

  • Change from Baseline: Change in fecal calprotectin levels

    2 weeks, 4 weeks, 6 weeks, and 8 weeks

  • Change from Baseline: Change in plasma inflammatory markers (pg/mL)

    2 weeks, 4 weeks, 6 weeks, and 8 weeks

Study Arms (2)

Xanthohumol

EXPERIMENTAL

Participants will take capsules containing 24 mg of xanthohumol in a rice protein vehicle by mouth once daily with the first daily meal.

Drug: Xanthohumol

Placebo

PLACEBO COMPARATOR

Participants will receive capsules filled with a rice protein vehicle by mouth once daily with the first daily meal.

Other: Placebo

Interventions

The xanthohumol supplement will be administered in a capsule and taken orally.

Xanthohumol
PlaceboOTHER

The placebo will be administered in a capsule and taken orally.

Placebo

Eligibility Criteria

Age21 Years - 50 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Adults 21-50 years of age
  • Active Crohn's disease not in remission based on a CDAI score \>150
  • Willing to take isolated Xanthohumol as a dietary supplement for 8 weeks
  • Willing to have blood drawn bi-weekly and fast for 10-12 hours before blood draws
  • Willing and able to collect bi-weekly stool samples at home
  • Willing and able to collect a 24-hour urine sample before each study visit
  • Able to speak, read and understand English
  • Must be able to provide written informed consent
  • Non-smokers (including tobacco and Cannabis products, combusted or vaporized)
  • For individuals of child-bearing potential, willingness to use an intrauterine device (IUD) or two other concurrent forms of birth control (e.g., 2 of the following categories: condoms, spermicide-containing gels, films or sponges; and/or vaginal rings) to prevent pregnancy while enrolled

You may not qualify if:

  • Highly variable dosing of anti-inflammatory medications (dose changes more than 1x per week)
  • Currently or recent (within last 14 days) taking any dietary supplements containing xanthohumol, flavonoids, or other known "anti-inflammatories" including: curcumin, turmeric, fenugreek, hops, rosemary, ginger, white willow, devil's claw, fish oil (doses\>1 g/day), or quercetin. Candidates will be given the option to "wash out" for 14 days and re-contact the study team.
  • Consumption of more than 1 beer per day.
  • Currently receiving intravenous nutrition support therapy (or within the last 14 days)
  • Currently taking anti-coagulant or anti-platelet prescription medications (or they were taken within the last 14 days)
  • Currently taking antibiotic, antiparasitic, or antifungal medications orally or intravenously (or they were taken within the last 14 days)
  • Initiation of or changes to supplements or medications within 14 days prior to screening.
  • Initiation of or changes to an exercise regimen within 14 days prior to screening.
  • Initiation of or changes to a food plan within 14 days prior to screening.
  • Current involvement or within 14 days prior to screening of a significant diet or weight loss program (such as NutriSystem, Jenny Craig, Atkin's or other low-carb diet programs) or very low-calorie liquid diet programs (such as Optifast, Medifast, and/or HMR)
  • Hospitalization (for any reason other than a scheduled medical procedure) within 3 months prior to screening
  • Gastrointestinal surgery within 3 months prior to screening
  • Malignancy within the last 5 years (with the exception of basal cell carcinoma, squamous cell carcinoma, and/or carcinoma in situ of the cervix)
  • Women who are lactating, pregnant or planning pregnancy within the next four months
  • Typical intake of more than 2 alcohol-containing beverages per day, more than 14 per week, or more than 4 in any single day within the past 14 days.
  • +5 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

National University of Natural Medicine

Portland, Oregon, 97201, United States

Location

Related Publications (1)

  • Langley BO, Ryan JJ, Phipps J, Buttolph L, Bray B, Aslan JE, Metz TO, Stevens JF, Bradley R. Xanthohumol microbiome and signature in adults with Crohn's disease (the XMaS trial): a protocol for a phase II triple-masked, placebo-controlled clinical trial. Trials. 2022 Oct 22;23(1):885. doi: 10.1186/s13063-022-06782-z.

MeSH Terms

Conditions

Crohn DiseaseInflammatory Bowel Diseases

Interventions

xanthohumol

Condition Hierarchy (Ancestors)

GastroenteritisGastrointestinal DiseasesDigestive System DiseasesIntestinal Diseases

Study Officials

  • Ryan Bradley, ND/MPH

    National University of Natural Medicine

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
Randomization will occur in up to 8 blocks of 4 based on biological sex. Initial randomization series will be generated using readily available random sequence generators designed to do so. A series of sequential envelopes will be generated, each containing the allocation for one participant. Envelopes will be opaque and signed across the seal. The randomization "code" will be kept in a sealed envelope with a signature across the label and dated the day of creation. Study product and comparator (placebo) will be compounded and placed in identical opaque capsules outside the institution.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Participants will be randomized to receive either encapsulated xanthohumol in a rice protein vehicle, or an identical capsule containing vehicle alone.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 28, 2020

First Posted

October 19, 2020

Study Start

October 1, 2020

Primary Completion

August 22, 2024

Study Completion

July 30, 2025

Last Updated

October 18, 2024

Record last verified: 2024-10

Data Sharing

IPD Sharing
Will share

We will use the University of California San Diego (UCSD) Metabolomics Workbench for sharing metabolomics datasets and results (including raw data matrices, platform information, and associated metadata). For activity-based proteomics data, we will use PRIDE or the MassIVE data repository at UCSD. Nucleic acid sequence data will be submitted to the National Center for Biotechnology Information (NCBI) Short Read Archive. Gene expression data will be submitted to Gene expression Omnibus at NCBI. Microbiome metadata will be deposited into database of Genotypes and Phenotypes. Metagenomic nucleic acid sequence data will additionally be deposited in Metagenomic Rapid Annotations using Subsystems Technology (MG-RAST) at Argonne National Laboratory, along with associated metadata. Microbiome summary files (e.g., tables cataloging: sample metadata, taxon or protein family abundances across samples) publicly available through github.

Shared Documents
STUDY PROTOCOL
Time Frame
We will share our data no later than on acceptance of the first publication of the findings from the respective data set(s).

Locations