Effects of Oral Supplement Containing L-Histidine and Antioxidants on the Skin Barrier Function and Systemic Inflammation in Rosacea

August 26, 2024 updated by: Integrative Skin Science and Research

The Effects of Oral Supplement Containing L-Histidine and Antioxidants on the Skin Barrier Function and Systemic Inflammation in Rosacea

The purpose of this study is to evaluate how supplementation will alter the skin and the gut barrier and inflammation in those with rosacea.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Rosacea is a chronic inflammatory condition that widely prevalent in the general population and is associated with both inflammation and dysfunction of the skin barrier. Gut dysfunction has been shown to be present in those with rosacea. This study evaluates how the use of a supplement may improve the gut and skin barrier as well as reduce general inflammation.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
24

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • United States
    • California
      • Sacramento, California, United States, 95815
        • Recruiting
        • Integrative Skin and Research
        • Principal Investigator:
          • Raja Sivamani, MD MS AP
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Males and females 30 to 70 years of age
  • The presence of mild to moderate rosacea (erythematotelangiectatic or papulopustular)
  • High sensitivity C-reactive protein (hs-CRP) that is greater than or equal to 1.0 mg/L

Exclusion Criteria:

  • The presence of severe rosacea as noted by the investigator global assessment.
  • Those who are unwilling to discontinue oral supplementation, or supplement ingredients found in the study's oral product 1 month prior to enrollment.
  • Discontinuation of oral L-glutamine or L-glutamine containing supplement 1 month prior to enrollment
  • Those who are unwilling to discontinue topical benzoyl peroxide or retinoids for 2 weeks prior to enrollment.
  • Those who are unwilling to keep their facial regimen the same throughout the study.
  • Individuals who have been on an oral antibiotic within the previous one month.
  • Individuals who are pregnant or breastfeeding.
  • Individuals who have changed any of their hormonal based contraception or therapies within 3 months prior to joining the study.
  • Individuals on oral contraceptive pills or progesterone or estrogen containing therapies.
  • Use of isotretinoin within the three months prior to enrollment.
  • Individuals on finasteride or dutasteride
  • Current tobacco smoker, smoker within the past year, or greater than 5 pack-year tobacco smoking history.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Skin Barrier Oral Supplement
Dietary supplement: Skin Barrier Oral Supplement
Supplment powder

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Transepidermal water loss (TEWL)
Time Frame: 8 weeks
Change in the facial transepidermal water loss (TEWL) using the Vapometer.
8 weeks
Blood hs-CRP level
Time Frame: 8 weeks
Change in blood hs-CRP level through blood spot testing
8 weeks

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Intestinal permeability
Time Frame: 4 weeks
Change in intestinal permeability through a urine based test by Genova Diagnostics
4 weeks
Intestinal permeability
Time Frame: 8 weeks
Change in intestinal permeability through a urine based test by Genova Diagnostics
8 weeks
Fecal levels of calprotectin
Time Frame: 4 weeks
Change in fecal levels of calprotectin through a stool sample
4 weeks
Fecal levels of calprotectin
Time Frame: 8 weeks
Change in fecal levels of calprotectin through a stool sample
8 weeks
Transepidermal water loss (TEWL)
Time Frame: 4 weeks
Change in the facial transepidermal water loss (TEWL) using the Vapometer.
4 weeks
Blood hs-CRP level
Time Frame: 4 weeks
Change in blood hs-CRP level through blood spot testing
4 weeks
Mood Questionnaire
Time Frame: 4 weeks
A survey to assess changes in mood
4 weeks
Mood Questionnaire
Time Frame: 8 Weeks
A survey to assess changes in mood
8 Weeks
Digestive Questionnaire
Time Frame: 4 weeks
A survey to assess digestive health
4 weeks
Digestive Questionnaire
Time Frame: 8 weeks
A survey to assess digestive health
8 weeks

Other Outcome Measures

Other Outcome Measures

For clinical trials, a planned measurement described in the protocol that is used to determine the effect of an intervention/treatment on participants. For observational studies, a measurement or observation that is used to describe patterns of diseases or traits, or associations with exposures, risk factors, or treatment. Types of outcome measures include primary outcome measure and secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Inflammatory lesions on the face
Time Frame: 4 weeks
Change in number of inflammatory lesions on the face
4 weeks
Inflammatory lesions on the face
Time Frame: 8 weeks
Change in number of inflammatory lesions on the face
8 weeks
Facial erythema
Time Frame: 4 weeks
Change in appearance of facial erythema measured by photographic analysis (BTBP 3D Camera System)
4 weeks
Facial erythema
Time Frame: 8 weeks
Change in appearance of facial erythema measured by photographic analysis (BTBP 3D Camera System)
8 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Integrative Skin Science and Research

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
November 22, 2023

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 31, 2024

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 31, 2024

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
October 2, 2023

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 2, 2023

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
October 10, 2023

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
August 27, 2024

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 26, 2024

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
August 1, 2024

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • i23-04_CL_SkinBarrier_Supp

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Cookie Settings

We use cookies to ensure that we give you the best experience on our website. For more details carefully read our Privacy and Cookies Policy. ...>>>You can change your preferences or withdraw your consent at any time by deleting the cookies from your website or computer as described in the policy. Please accept it and choose your preferences by ticking the corresponding boxes in the "Manage Settings" section below. Please carefully read our Terms of Service before you proceed with using any part of this website.
«Manage Settings