Healthy Clinical Trial - Local Changes of Skin Characteristics After an

Status Completed

Clinical Trial Summary

The use of topical over-the-counter (OTC) products with a warming or cooling effect is widespread in the fields of sport, physiotherapy and in private households. Advertisements for such products promise pain relief when suffering from musculoskeletal disorders such as muscle tension, rheumatism or acute injuries, e.g. sprains. In literature, there are only little information about the efficacy and the physiological mechanisms of topical warming or cooling products. Therefore, the aim of this study is to investigate the local skin characteristics during and after an application of a topical product with a warming or cooling effect.

Clinical Trial Description

The use of topical products for local pain relief in chronic or acute musculoskeletal disorders is widely used. Despite the widespread use of these products, there is missing information on the physiological mechanisms and efficacy of topical warming and cooling ointments. Most of the existing literature is about the efficacy of topical non-steroidal anti-inflammatory drug (NSAID)-products on chronic pain in osteoarthritis. Furthermore, one study tested the cooling effect of gels with different menthol concentrations. They found that, regardless of the concentration, the skin temperature was reduced up to one hour post application in the area of application.

The aim of our study is to evaluate the change of skin characteristics after a single application of a warming or cooling topical product on healthy subjects. Outcome parameters include skin perfusion, temperature, skin redness and subjective thermal sensation. We only selected products in form of alcohol based ointments, menthol or wintergreen oil. Sprays and patches were excluded.

The application area is the unilateral lumbar back region, whereas the contralateral side serves as control area. After an acclimatization period, baseline measurements are performed, followed by standardized application of the topical product. The local skin responses are measured in 10 mins time increments up to one hour. ;

Study Design

Related Conditions & MeSH terms

Healthy

Clinical Trial Details

NCT number	NCT03016221
Study type	Interventional
Source	University of Applied Sciences and Arts of Southern Switzerland
Contact
Status	Completed
Phase	N/A
Start date	May 1, 2017
Completion date	December 6, 2019

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Local Changes of Skin Characteristics After an Application of a Topical Product With a Warming or Cooling Effect — SRPT

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms