Tissue-resident Memory T Cells Expression Among the Repigmentation Patterns Induced by NB-UVB Phototherapy in Vitiligo
1 other identifier
observational
11
1 country
1
Brief Summary
Vitiligo is the most commonly acquired depigmentation disorder characterized by selective destruction of melanocytes resulting in well-circumscribed achromic macules. Tissue-resident memory T cells (TRM) are memory T lymphocyte subsets that reside in the skin, lack recirculation, proliferate locally, produce cytokines, and may be implicated in relapses. NB-UVB Phototherapy induces repigmentation in certain patterns. The aim of this study was to determine the levels of TRM cells on vitiligo lesions, and after phototherapy by repigmentation pattern.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for all trials
Started Aug 2021
Shorter than P25 for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
August 1, 2021
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 24, 2022
CompletedStudy Completion
Last participant's last visit for all outcomes
August 3, 2022
CompletedFirst Submitted
Initial submission to the registry
August 16, 2022
CompletedFirst Posted
Study publicly available on registry
August 18, 2022
CompletedAugust 18, 2022
August 1, 2022
12 months
August 16, 2022
August 16, 2022
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Tissue-resident memory T cells
To quantify the expression of Tissue-resident memory T cells before and after phototherapy
Up to 1 year
Secondary Outcomes (3)
Tissue-resident memory T cells among the repigmentation patterns
Up to 1 year
Arrangment of the Tissue-resident memory T cells among the repigmentation patterns
Up to 1 year
TRM transcriptional factors profile
Up to 1 year
Study Arms (1)
Vitiligo vulgaris
A serial of vitiligo patients under treatment with UVB-NB
Eligibility Criteria
Patients with clinical diagnosis of vitiligo vulgaris with more than 10 percent of the total body surface affected.
You may qualify if:
- years of age or older
- Symmetric vitiligo
- Affected body surface greater than 10%
- Patients with follicular, marginal and diffuse repigmenting patterns
- No previous topical or systemic treatment in the previous 2 and 3 months, respectively
- Signed informed consent
You may not qualify if:
- Concomitant treatment or systemic diseases
- Pregnancy
- Drugs intake
- Mental disorders
- Acral, universal or segmental vitiligo
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Dermatology Department. Hospital Central "Dr. Ignacio Morones Prieto"
San Luis Potosí City, 78290, Mexico
Related Publications (10)
Bae JM, Jung HM, Hong BY, Lee JH, Choi WJ, Lee JH, Kim GM. Phototherapy for Vitiligo: A Systematic Review and Meta-analysis. JAMA Dermatol. 2017 Jul 1;153(7):666-674. doi: 10.1001/jamadermatol.2017.0002.
PMID: 28355423RESULTFraczek A, Owczarczyk-Saczonek A, Placek W. The Role of TRM Cells in the Pathogenesis of Vitiligo-A Review of the Current State-Of-The-Art. Int J Mol Sci. 2020 May 18;21(10):3552. doi: 10.3390/ijms21103552.
PMID: 32443482RESULTRiding RL, Harris JE. The Role of Memory CD8+ T Cells in Vitiligo. J Immunol. 2019 Jul 1;203(1):11-19. doi: 10.4049/jimmunol.1900027.
PMID: 31209143RESULTRichmond JM, Strassner JP, Rashighi M, Agarwal P, Garg M, Essien KI, Pell LS, Harris JE. Resident Memory and Recirculating Memory T Cells Cooperate to Maintain Disease in a Mouse Model of Vitiligo. J Invest Dermatol. 2019 Apr;139(4):769-778. doi: 10.1016/j.jid.2018.10.032. Epub 2018 Nov 10.
PMID: 30423329RESULTBehr FM, Chuwonpad A, Stark R, van Gisbergen KPJM. Armed and Ready: Transcriptional Regulation of Tissue-Resident Memory CD8 T Cells. Front Immunol. 2018 Jul 30;9:1770. doi: 10.3389/fimmu.2018.01770. eCollection 2018.
PMID: 30131803RESULTMackay LK, Minnich M, Kragten NA, Liao Y, Nota B, Seillet C, Zaid A, Man K, Preston S, Freestone D, Braun A, Wynne-Jones E, Behr FM, Stark R, Pellicci DG, Godfrey DI, Belz GT, Pellegrini M, Gebhardt T, Busslinger M, Shi W, Carbone FR, van Lier RA, Kallies A, van Gisbergen KP. Hobit and Blimp1 instruct a universal transcriptional program of tissue residency in lymphocytes. Science. 2016 Apr 22;352(6284):459-63. doi: 10.1126/science.aad2035.
PMID: 27102484RESULTZubair R, Hamzavi IH. Phototherapy for Vitiligo. Dermatol Clin. 2020 Jan;38(1):55-62. doi: 10.1016/j.det.2019.08.005. Epub 2019 Oct 18.
PMID: 31753192RESULTCastanedo-Cazares JP, Cortes-Garcia JD, Fuentes-Ahumada C, Martinez-Rosales K, Torres-Alvarez B. Repigmentation patterns induced by NB-UVB and their relationship with melanocytic migration and proliferation in vitiligo. Photodermatol Photoimmunol Photomed. 2016 Sep;32(5-6):269-275. doi: 10.1111/phpp.12275. Epub 2016 Oct 5.
PMID: 27627998RESULTPatra V, Laoubi L, Nicolas JF, Vocanson M, Wolf P. A Perspective on the Interplay of Ultraviolet-Radiation, Skin Microbiome and Skin Resident Memory TCRalphabeta+ Cells. Front Med (Lausanne). 2018 May 30;5:166. doi: 10.3389/fmed.2018.00166. eCollection 2018.
PMID: 29900173RESULTAzzolino V, Zapata L Jr, Garg M, Gjoni M, Riding RL, Strassner JP, Richmond JM, Harris JE. Jak Inhibitors Reverse Vitiligo in Mice but Do Not Deplete Skin Resident Memory T Cells. J Invest Dermatol. 2021 Jan;141(1):182-184.e1. doi: 10.1016/j.jid.2020.04.027. Epub 2020 May 25. No abstract available.
PMID: 32464150RESULT
Biospecimen
Skin biopsies
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Juan P Castanedo-Cazares, MD
Universidad Autonoma de San Luis Potosi
Study Design
- Study Type
- observational
- Observational Model
- CASE ONLY
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Clinical and research professor in Dermatology
Study Record Dates
First Submitted
August 16, 2022
First Posted
August 18, 2022
Study Start
August 1, 2021
Primary Completion
July 24, 2022
Study Completion
August 3, 2022
Last Updated
August 18, 2022
Record last verified: 2022-08
Data Sharing
- IPD Sharing
- Will not share