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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT05604469
Other study ID # 9802-11-10-2022
Secondary ID
Status Recruiting
Phase
First received
Last updated
Start date October 1, 2022
Est. completion date June 1, 2023

Study information

Verified date October 2022
Source Zagazig University
Contact Reham Essam, MD
Phone +201097709477
Email rereessam22@gmail.com
Is FDA regulated No
Health authority
Study type Observational [Patient Registry]

Clinical Trial Summary

- Various neurotransmitters may share in the pathogenesis of hepatic and renal itching. - Skin microbiota may share in the pathogenesis of pruritus.


Description:

Uremic pruritus (UP) is a frequent phenomenon and it is regarded as one of the most bothersome symptoms in patients with chronic renal disease. The prevalence of UP is still high and reported in around 40% to 50%. UP has an important impact on patients' quality of life and sleep, depression, and increased mortality. The pathogenesis of UP remains blurry, although many different factors have been indicated in the etiology of this symptom, including increased systemic inflammation, abnormal serum parathyroid hormone, calcium, and phosphorus levels, an imbalance in opiate receptors, a neuropathic process, or even skin dryness. This is why until now there is no specific treatment for patients with UP and many of the available therapeutic modalities are not satisfactory Pruritus in liver diseases can often be a debilitating symptom causing significant impairment in quality of life. Not all patients with liver disease develop pruritus and its prevalence varies depending on the underlying cause of liver disease. It is more common in conditions characterized by bile duct inflammatory destruction than in those characterized by hepatocellular injury. Cutaneous microbiota delivers a diverse and far-reaching influence on our physiology by calling upon the host nervous system. Bacteria make metabolites, toxins, and structural components that are recognized by peripheral and central neurons via matching receptors. Microbiota also indirectly affects neural function by causing endocrine (i.e., keratinocytes) and immune cells to transmit signals (i.e., cytokines, proteases). Itch is a prototypic sensory neural function, and the microbiota propels the itch-scratch cycle.


Recruitment information / eligibility

Status Recruiting
Enrollment 60
Est. completion date June 1, 2023
Est. primary completion date April 1, 2023
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group N/A and older
Eligibility Inclusion Criteria: - Patients of both sexes. Patients with hepatic illness (autoimmune liver diseases, chronic viral hepatitis, and drug-induced liver injury) or Patients with renal failure Willing to sign an informed consent.

Study Design


Intervention

Diagnostic Test:
Isolation of skin microbiota
Isolation of skin microbiota including, Staphylococcus epidermidis, Propionibacterium acnes, Pseudomonas aeruginosa, Staphylococcus aureus, Streptococcus pyogenes and Candida.

Locations

Country Name City State
Egypt Reham Essam Zagazig Al Sharqia

Sponsors (1)

Lead Sponsor Collaborator
Zagazig University

Country where clinical trial is conducted

Egypt, 

References & Publications (5)

Combs SA, Teixeira JP, Germain MJ. Pruritus in Kidney Disease. Semin Nephrol. 2015 Jul;35(4):383-91. doi: 10.1016/j.semnephrol.2015.06.009. Review. — View Citation

Kim HS, Yosipovitch G. The Skin Microbiota and Itch: Is There a Link? J Clin Med. 2020 Apr 22;9(4). pii: E1190. doi: 10.3390/jcm9041190. Review. — View Citation

N. V. Bergasa. Frontiers in neuroscience pruritus of cholestasis. In: Carstens E, Akiyama T, editors. Itch: mechanisms and treatment. Boca Raton, FL: CRC Press/Taylor & Francis Group; 2014.

Szepietowski JC, Salomon J. Uremic pruritus: still an important clinical problem. J Am Acad Dermatol. 2004 Nov;51(5):842-3. — View Citation

Szepietowski JC, Sikora M, Kusztal M, Salomon J, Magott M, Szepietowski T. Uremic pruritus: a clinical study of maintenance hemodialysis patients. J Dermatol. 2002 Oct;29(10):621-7. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary To evaluate the possible change of skin microbiota in patients with renal or hepatic pruritus Isolation of skin microbiota including, Staphylococcus epidermidis, Propionibacterium acnes, Pseudomonas aeruginosa, Staphylococcus aureus, Streptococcus pyogenes and Candida. 8 weeks
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