- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02713607
Lipidome and Microbiome Profile of Acne
Lipidome and microbiome analysis in subjects with acne on doxycycline. Investigators will look at the skin lipidome, blood lipidome, gut micro biome and skin micro biome.
Investigators will look at the changes between acne subjects and control participants, but also the changes that occur after the use of antibiotics and how this is altered.
Study Overview
Detailed Description
We will look at acne subjects, and controls.
We will look at four things
- skin lipidome
- skin microbiome
- gut microbiome
- blood lipidome
Investigators will assess this in acne participants before and after doxycycline and compare them to controls.
Study Type
Enrollment (Actual)
Phase
- Phase 2
- Phase 1
Contacts and Locations
Study Locations
-
-
California
-
Sacramento, California, United States, 95816
- UC Davis Dept of Dermatology
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- Aged 15 and older
- Subjects/parents/legal guardian is able to read and comprehend study procedure and consent forms.
- Have already been prescribed Doxycycline by their physician for acne or to be eligible to be prescribed Doxycycline for acne
- Have acne that is diagnosed by a board certified dermatologist.
Exclusion Criteria:
- Those who have received systemic antibiotics within four weeks of starting the study.
- Those who have received systemic isotretinoin within six weeks of starting the study.
- Those with seborrheic dermatitis, rosacea, or polycystic ovary syndrome
- Those who are pregnant, prisoners or cognitively impaired.
- Those subjects who are currently using proton pump inhibits (as studies have shown this may impact the gut microbiome) (4)
- Those who have a BMI greater than >30 kg/m2, as studies have shown a reduction in the variability of intestinal microbes within this population (5).
- Those who have initiated or changed brand of oral contraceptive pill within 4 weeks of starting the study.
- Those who have autoimmune disorders as this group has been shown to have an altered microbiome (6)
- Those who have diabetes (6), immunodeficiencies (7), inflammatory bowel disease (6), hypercholesterolemia, as these groups have been shown to have altered gut microbiomes
- Those who have taken oral probiotic supplements (8) within 4 weeks of starting the study
- Given the nature of the instructions that need to be adhered to for accurate collection of samples and this data, non-English speaking individuals will be excluded from this pilot study.
- Allergies to the tetracycline group of antibiotics
- Those who do not fit the inclusion criteria
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Health Services Research
- Allocation: Non-Randomized
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: doxycycline
Given doxycycline and assessment of gut, blood and skin
|
Given doxycycline to acne subjects
|
No Intervention: Control
Control subjects to assess if there is baseline difference in these micro-evironments.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in the diversity of the gut microbiome in those with and without acne.
Time Frame: 2 years
|
The diversity will be evaluated by assessing the Bray-Curtis dissimilarity index and the Shannon diversity of the bacterial DNA in the gut microbiome.
|
2 years
|
Change in the diversity of the gut microbiome before and after the treatment of doxycycline in those with acne.
Time Frame: 2 years
|
The diversity will be evaluated by assessing the Bray-Curtis dissimilarity index and the Shannon diversity of the bacterial DNA in the gut microbiome.
|
2 years
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in global acne grade score
Time Frame: 2 years
|
2 years
|
|
Change in the investigator global assessment of acne
Time Frame: 2 years
|
2 years
|
|
Change in the lesion count of inflammatory and non-inflammatory lesions
Time Frame: 2 years
|
2 years
|
|
Change in the diversity of the skin microbiome in those with and without acne
Time Frame: 2 years
|
The diversity will be evaluated by assessing the Bray-Curtis dissimilarity index and the Shannon diversity of the bacterial DNA in the gut microbiome.
|
2 years
|
Change in the diversity of the skin microbiome before and after treatment with doxycycline in those with acne
Time Frame: 2 years
|
The diversity will be evaluated by assessing the Bray-Curtis dissimilarity index and the Shannon diversity of the bacterial DNA in the gut microbiome.
|
2 years
|
Change in the diversity of the skin lipidome in those with and without acne
Time Frame: 2 years
|
The lipid profile will include quantitation of the fatty acid profiles and presence of long chain fatty acids and short chain fatty acids.
|
2 years
|
Change in the skin lipidome before and after treatment with doxycycline in those with acne
Time Frame: 2 years
|
The lipid profile will include quantitation of the fatty acid profiles and presence of long chain fatty acids and short chain fatty acids.
|
2 years
|
Change in the diversity of the blood lipidome in those with and without acne
Time Frame: 2 year
|
The lipid profile will include quantitation of the fatty acid profiles and presence of long chain fatty acids and short chain fatty acids.
|
2 year
|
Change in the blood lipidome before and after treatment with doxycycline in those with
Time Frame: 2 years
|
The lipid profile will include quantitation of the fatty acid profiles and presence of long chain fatty acids and short chain fatty acids.
|
2 years
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Raja K Sivamani, MD MS CAT, UCDavis
Study record dates
Study Major Dates
Study Start
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimated)
Study Record Updates
Last Update Posted (Estimated)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 867744
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.
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