Clinical Trials Logo
  1. Home
  2. ITCH
  3. NCT04515056

Characterization of New Human Models of Non-histaminergic Itch

Itch Clinical Trial

Official title:
Characterization of New Human Models of Non-histaminergic Itch and Their Interaction With the TRPM8 Receptor

Clinical Trial Summary

In this experiment the investigators would like to test a new new human itch model based on papain, and to characterize the sensory quality and temporary aspects of papain skin prick test (SPT) in comparison to the inactivated-cowhage delivery system.

Clinical Trial Description

The most used model of non-histaminergic itch is cowhage but this models presents several problems, such us the impossibility of standardizing the amount of the spicules inserted in the skin and the difficulty of obtaining the substance. These aspects bring us the necessity to find a new and more standardized model of non-histaminergic itch. Papain is a cysteine protease extracted from papaya plant that is known to cause itch if applied to the skin. For these reasons the investigators would like to test a new new human itch model based on papain, and to characterize the sensory quality and temporary aspects of papain skin prick test (SPT) in comparison to the inactivated-cowhage delivery system. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT04515056
Study type Interventional
Source Aalborg University
Contact
Status Completed
Phase N/A
Start date September 1, 2020
Completion date June 1, 2021
View Details
See also
  Status Clinical Trial Phase
Completed NCT01683552 - Aprepitant in the Management of Biological Therapies-related Severe Pruritus Phase 2
Completed NCT02075632 - Study to Evaluate Product Duration of Use Experience With Alclometasone Dipropionate Cream Phase 2
Completed NCT04076865 - Evaluation of the Effect Induced by Repeated Administration of Topical Local Anaesthetic (EMLA) on Itch N/A
Completed NCT04588532 - Characterization of BAM8-22 as a New Surrogate Model of Non-histaminergic Itch N/A
Enrolling by invitation NCT05195177 - Testing Protocol to Efficiently Induce Itch N/A
Withdrawn NCT03943407 - Characterization of the Toll-like Receptor 7-agonist Imiquimod 3.75% as a New Surrogate Model of Itch N/A
Completed NCT04858360 - Inhibition of Non-histaminergic Pruritus Applied Using 3 Different Pruritogens N/A
Completed NCT04635254 - The Effect of Halophyte-based Cream on Pain and Itch N/A
Not yet recruiting NCT06201715 - Efficacy and Safety of Tofacitinib in Patients With Prurigo Nodularis N/A
Completed NCT06036589 - Characterization of Bovine Adrenal Medulla as a Model of Non-histaminergic Itch N/A
Not yet recruiting NCT06245564 - Effect of Ketamine, Amitriptyline and Their Combination on Histaminergic and Non-histaminergic Itch N/A
Completed NCT04554888 - Characterization of New Human Models of Non-histaminergic Itch and Their Interaction With the TRPM8 Receptor N/A
Completed NCT04387851 - Learning Mechanisms for Placebo and Nocebo Studies on Somatosensory Sensations: a Systematic Review and Meta-analysis.
Completed NCT03928223 - The Color of Itch; Itch Modification by Color Viewing
Completed NCT03576053 - A Mechanistic Evaluation of the Interactions Between Thermoceptive and Pruriceptive Sensory Processing N/A
Completed NCT04700007 - Evaluation of Peripheral Itch Mechanisms Following Injection of Morphine (Second Sub-Project) N/A
Terminated NCT02828787 - Central Mechanisms of Chronic Pruritus: Functional and Structural Brain Imaging. N/A
Completed NCT04115462 - A Relation of Morphine-induced Itch and Pain Processing N/A
Not yet recruiting NCT04197440 - Characterization of Bovine Adrenal Medulla (BAM8-22) as a New Surrogate Model of Non-histaminergic Itch N/A
Completed NCT05249387 - Characterization of Bovine Adrenal Medulla as a New Surrogate Model of Non-histaminergic Itch N/A