- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00697034
Effects of Capsaicin on the Structure, Distribution, and Function of Cutaneous Small Nerve Fibers in Psoriatic Skin
August 9, 2018 updated by: Wake Forest University
The purpose of this research study is to examine the role of nerves in the skin in psoriasis and to better understand the effects of capsaicin in psoriasis.In this study, capsaicin will be compared to a moisturizer (aquaphor ointment).
Study Overview
Study Type
Interventional
Enrollment (Actual)
12
Phase
- Phase 4
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
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North Carolina
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Winston-Salem, North Carolina, United States, 27157
- Wake Forest University Health Sciences Dermatology
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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
Ages Eligible for Study
16 years and older (Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- Adult men and women who are 18 years of age or older.
- Diagnosis of plaque-type psoriasis is required to be confirmed by clinical criteria.
- Subjects must be in general good health with no other skin disease, disease state or physical condition which would impair evaluation of psoriasis or which would increase their health risk by study participation.
- Subjects must be willing to receive topical capsaicin weekly for 6 weeks and must be willing to undergo 3mm punch biopsies at baseline and at week 6.
- Subjects may not receive any systemic therapies during the study.
- Subjects are required to complete a 4 week washout period from any systemic medication and/or phototherapy prior to enrolling in the study.
- Stable use of moisturizers will be allowed provided that use has been stable for at least 14 days.
- Women of child bearing age will be required to have a negative pregnancy test in order to enroll in the study and will be required to maintain adequate birth control throughout the study.
Exclusion Criteria:
- Subjects who are unable to complete the required measures.
- Subjects diagnosed with other skin diseases that would affect the measurement of cutaneous blood flow.
- Subjects with any history of any disease associated with neuropathy, including diabetes, alcoholism, uremia, HIV infection, hypothyroidism, or cancer chemotherapy.
- Subjects who are currently enrolled in any investigational study in which the subject is receiving any type of drug, biologic, or non-drug therapy and subjects undergoing treatment with another investigational drug or approved therapy for investigational use within 28 days prior to investigational drug administration.
- Subjects who have used any topical therapy for psoriasis or other skin diseases in the past 7 days.
- Subjects receiving any of the following treatments or agents within the 28 days prior to investigational drug administration will be excluded: systemic retinoids, systemic steroids, methotrexate, cyclosporine, azathioprine, thioguanine, etanercept, efalizumab, infliximab, adalimumab or mofetil or other systemic immunosuppressant, and phototherapy, including Ultraviolet B (UVB) and Psoralen + Ultraviolet A (PUVA).
- Subjects with a known allergy to capsaicin.
- Children less than 18 years of age.
- Pregnant women.
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 |
Intervention / Treatment |
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Experimental: 1
Study subjects will be patients with chronic plaque-type psoriasis
|
natural alkaloid derived from hot chili peppers and activates vanilloid receptors that are also activated by endogenous cannabinoid anandamide applied three times daily
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
To assess the effect of capsaicin on small nerve fiber function in psoriasis
Time Frame: 1 day
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1 day
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Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
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
June 1, 2006
Primary Completion (Actual)
August 1, 2007
Study Completion (Actual)
December 1, 2008
Study Registration Dates
First Submitted
June 9, 2008
First Submitted That Met QC Criteria
June 12, 2008
First Posted (Estimate)
June 13, 2008
Study Record Updates
Last Update Posted (Actual)
August 13, 2018
Last Update Submitted That Met QC Criteria
August 9, 2018
Last Verified
August 1, 2018
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 05-467
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Yes
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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