Prevalence of Psoriasis and Vitiligo in Assiut Governorate, Egypt
NCT ID: NCT04039451
Last Updated: 2019-07-31
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.
UNKNOWN
1200 participants
OBSERVATIONAL
2019-09-01
2020-05-31
Brief Summary
Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.
It is a complex disease, multiple exogenous and endogenous stimuli incite already stimulated innate immune responses in genetically predetermined individuals. The disease process is a result of a network of cell types including T cells, dendritic cells and keratinocytes that, with the production of cytokines, generate a chronic inflammatory state.
Vitiligo is a chronic disorder of pigmentation characterized by the development of white macules on the skin due to loss of epidermal melanocytes.
Its pathogenesis is still unclear, many mechanisms and theories have been suggested including autoimmunity, auto cytotoxicity, biochemical and neuronal mechanisms.
Detailed Description
Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.
Prevalence of psoriasis is around 2-3% of the general population. A high prevalence of psoriasis at the rate of 11.8% has been reported from Kazach'ye, located in the Arctic region of the former Soviet Union.
In Egypt, the prevalence reported is around 3%. A study was done in hospitals of Damietta governorate reveals that prevalence of psoriasis is about 5%. Up to the investigator's knowledge the prevalence of psoriasis at Assuit governorate is not known till now.
Vitiligo can be classified into segmental or non-segmental. Non-segmental or generalized vitiligo is the most common clinical presentation and often involves the face and acral regions.
Prevalence of vitiligo is 0.5%-2% of general population world-wide, without predilection for sex or race. A previous study on skin diseases I Assiut governorates reveals that prevalence of vitiligo was about 1.22%.
Conditions
See the medical conditions and disease areas that this research is targeting or investigating.
Study Design
Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.
ECOLOGIC_OR_COMMUNITY
CROSS_SECTIONAL
Study Groups
Review each arm or cohort in the study, along with the interventions and objectives associated with them.
people who live in rural areas in Assuit governorate
The study will performed on people who live in rural areas in Assuit governorate (all households) regardless of sex or age.
No interventions assigned to this group
Eligibility Criteria
Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.
Inclusion Criteria
ALL
No
Sponsors
Meet the organizations funding or collaborating on the study and learn about their roles.
Assiut University
OTHER
Responsible Party
Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.
Aml Hassan Ali
principal investigator
Locations
Explore where the study is taking place and check the recruitment status at each participating site.
Assiut University
Asyut, , Egypt
Countries
Review the countries where the study has at least one active or historical site.
Central Contacts
Reach out to these primary contacts for questions about participation or study logistics.
Yasmin Tawfik
Role: CONTACT
Phone: 01006033331
References
Explore related publications, articles, or registry entries linked to this study.
Parisi R, Symmons DP, Griffiths CE, Ashcroft DM; Identification and Management of Psoriasis and Associated ComorbidiTy (IMPACT) project team. Global epidemiology of psoriasis: a systematic review of incidence and prevalence. J Invest Dermatol. 2013 Feb;133(2):377-85. doi: 10.1038/jid.2012.339. Epub 2012 Sep 27.
Lebwohl M. Psoriasis. Lancet. 2003 Apr 5;361(9364):1197-204. doi: 10.1016/S0140-6736(03)12954-6.
Nestle FO, Kaplan DH, Barker J. Psoriasis. N Engl J Med. 2009 Jul 30;361(5):496-509. doi: 10.1056/NEJMra0804595. No abstract available.
Finlay AY, Khan GK, Luscombe DK, Salek MS. Validation of Sickness Impact Profile and Psoriasis Disability Index in Psoriasis. Br J Dermatol. 1990 Dec;123(6):751-6. doi: 10.1111/j.1365-2133.1990.tb04192.x.
Raychaudhuri SP, Farber EM. The prevalence of psoriasis in the world. J Eur Acad Dermatol Venereol. 2001 Jan;15(1):16-7. doi: 10.1046/j.1468-3083.2001.00192.x. No abstract available.
Ezzedine K, Eleftheriadou V, Whitton M, van Geel N. Vitiligo. Lancet. 2015 Jul 4;386(9988):74-84. doi: 10.1016/S0140-6736(14)60763-7. Epub 2015 Jan 15.
Salah Eldin MM, Sami NA, Aly DG, Hanafy NS. Comparison Between (311-312 nm) Narrow Band Ultraviolet-B Phototherapy and (308 nm) Monochromatic Excimer Light Phototherapy in Treatment of Vitiligo: A Histopathological Study. J Lasers Med Sci. 2017 Summer;8(3):123-127. doi: 10.15171/jlms.2017.22. Epub 2017 Jun 27.
Alikhan A, Felsten LM, Daly M, Petronic-Rosic V. Vitiligo: a comprehensive overview Part I. Introduction, epidemiology, quality of life, diagnosis, differential diagnosis, associations, histopathology, etiology, and work-up. J Am Acad Dermatol. 2011 Sep;65(3):473-491. doi: 10.1016/j.jaad.2010.11.061.
Abdel-Hafez K, Abdel-Aty MA, Hofny ER. Prevalence of skin diseases in rural areas of Assiut Governorate, Upper Egypt. Int J Dermatol. 2003 Nov;42(11):887-92. doi: 10.1046/j.1365-4362.2003.01936.x.
CAPMAS (2018): The Central Agency for Public Mobilization and Statistics (CAPMAS). The Annual Book of National Statistics. Cairo, Egypt: 2018: 8.
Fredriksson T, Pettersson U. Severe psoriasis--oral therapy with a new retinoid. Dermatologica. 1978;157(4):238-44. doi: 10.1159/000250839.
Robinson A, Kardos M, Kimball AB. Physician Global Assessment (PGA) and Psoriasis Area and Severity Index (PASI): why do both? A systematic analysis of randomized controlled trials of biologic agents for moderate to severe plaque psoriasis. J Am Acad Dermatol. 2012 Mar;66(3):369-75. doi: 10.1016/j.jaad.2011.01.022. Epub 2011 Oct 29.
van Geel N, Lommerts J, Bekkenk M, Wolkerstorfer A, Prinsen CAC, Eleftheriadou V, Taieb A, Picardo M, Ezzedine K, Speeckaert R. Development and Validation of the Vitiligo Extent Score (VES): an International Collaborative Initiative. J Invest Dermatol. 2016 May;136(5):978-984. doi: 10.1016/j.jid.2015.12.040. Epub 2016 Jan 28.
McKenna SP, Cook SA, Whalley D, Doward LC, Richards HL, Griffiths CE, Van Assche D. Development of the PSORIQoL, a psoriasis-specific measure of quality of life designed for use in clinical practice and trials. Br J Dermatol. 2003 Aug;149(2):323-31. doi: 10.1046/j.1365-2133.2003.05492.x.
Marissa D. Newman and Jeffrey M. Weinberg (2008): The pathophysiology of psoriasis: Treatment of psoriasis; 12,19,11-23.
Farber EM and Nail L. (1998): Natural history and genetics. Psoriasis, 3rd edn. Marcel Dekker, New York, 1998: 107-157.
Other Identifiers
Review additional registry numbers or institutional identifiers associated with this trial.
POPAVIassiutGE
Identifier Type: -
Identifier Source: org_study_id