UVB-induced Treg Cells Exert Antigen-specific Suppression Through LAG-3
Study Purpose
The goal of this clinical trial is to compare the immune cell population in blood of the participants with psoriasis/atopic dermatitis before and after UVB treatment. The main questions it aims to answer are: 1. how immune cells in the PBMCs from blood of participants are affected by UVB treatment. 2. will UVB treatment expand the antigen-specific Treg cell population. 3. will UVB treatment enhance the suppressive function of Treg cells. Participants giving written informed consent will donate their blood (20 ml) before UVB treatment begins. After 8 to 10-week treatment course, the participants will donate their blood (20 ml) again. Researchers will compare immune cell population changes in the PBMCs of participants before and after UVB treatment. In addition, researchers will purify Treg cells from participant blood before and after UVB treatment to test their suppressive activity by ex vivo suppression assay.
Recruitment Criteria
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Accepts Healthy Volunteers
Healthy volunteers are participants who do not have a disease or condition, or related conditions or symptoms |
No |
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Study Type
An interventional clinical study is where participants are assigned to receive one or more interventions (or no intervention) so that researchers can evaluate the effects of the interventions on biomedical or health-related outcomes. An observational clinical study is where participants identified as belonging to study groups are assessed for biomedical or health outcomes. Searching Both is inclusive of interventional and observational studies. |
Interventional |
| Eligible Ages | 20 Years and Over |
| Gender | All |
Trial Details
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Trial ID:
This trial id was obtained from ClinicalTrials.gov, a service of the U.S. National Institutes of Health, providing information on publicly and privately supported clinical studies of human participants with locations in all 50 States and in 196 countries. |
NCT05636839 |
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Phase
Phase 1: Studies that emphasize safety and how the drug is metabolized and excreted in humans. Phase 2: Studies that gather preliminary data on effectiveness (whether the drug works in people who have a certain disease or condition) and additional safety data. Phase 3: Studies that gather more information about safety and effectiveness by studying different populations and different dosages and by using the drug in combination with other drugs. Phase 4: Studies occurring after FDA has approved a drug for marketing, efficacy, or optimal use. |
N/A |
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Lead Sponsor
The sponsor is the organization or person who oversees the clinical study and is responsible for analyzing the study data. |
National Taiwan University Hospital |
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Principal Investigator
The person who is responsible for the scientific and technical direction of the entire clinical study. |
Yungling Lee, Dr |
| Principal Investigator Affiliation | Academia Sinica, Taiwan |
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Agency Class
Category of organization(s) involved as sponsor (and collaborator) supporting the trial. |
Other |
| Overall Status | Recruiting |
| Countries | Taiwan |
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Conditions
The disease, disorder, syndrome, illness, or injury that is being studied. |
Psoriasis, Atopic Dermatitis |
Contact a Trial Team
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