Chlorhexidine Scrub, ZnO Nanoparticles Socks and the Combination for Treatment of Pitted Keratolysis

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE4

Total Enrollment

60 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-03-15

Study Completion Date

2022-11-01

Brief Summary

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This study aimed to study the efficacy of chlorhexidine scrub, zinc oxide nanoparticles (ZnO-NPs) socks and the combination of chlorhexidine scrub and ZnO-NPs socks in treatment of pitted keratolysis.

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Detailed Description

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Introduction Pitted keratolysis is a common skin disease, caused by various gram-positive bacteria including Corynebacterium species, Kytococcus sedentarius, Dermophilus congolensis and Actinomyces species. These bacteria create small tunnels in the stratum corneum, causing pitted lesions at plantar areas. This condition is frequent accompanied by feet malodor and is commonly found in young male adults, especially in soldiers, miners and athletes. The reported prevalence of pitted keratolysis among naval cadets in Thailand was 38.7%. Predisposing factors related to pitted keratolysis are pedal hyperhidrosis and prolonged feet occlusion. Although this condition is generally not painful, our previous study in 2018 revealed adversely affects patients' quality of life.

Regarding treatment modalities of pitted keratolysis, various medications and life-style modification have been recommended. Previous studies revealed efficacy of topical choices, including benzoyl peroxide gel, clindamycin-benzoyl peroxide gel, glycopyrrolate cream, erythromycin gel, clindamycin solution, chlorhexidine scrub and mupirocin ointment. Oral antibiotics and botulinum toxin injection were also beneficial in pitted keratolysis. As to life-style modification, wearing cotton socks and opened footwear, and proper hygiene, have also been suggested.

Zinc oxide (ZnO) has been demonstrated to exhibit antimicrobial activities against many microorganisms, such as Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa and fungal infections including dermatophytosis. It has been proposed that the mechanism is the generation of reactive oxygen species, such as hydrogen peroxide, on microorganism cell surfaces, thereby causing membrane dysfunction. The antimicrobial activities have been observed to vary with changes in the physical and chemical properties of ZnO, for instance, its particle size, porosity and specific surface area.

Nanobiotechnology , which is the integration of biotechnology and nanotechnology, is currently being used in drug delivery systems. The bactericidal efficacy of ZnO nanoparticles (ZnO-NPs) has been shown to improves with a decrease in their particle size. ZnO has also been shown to be is safe and compatible with human skin, which makes it a suitable additive for textiles. Research by Choopong and Sarayut established that ZnO-NP-coated socks exhibited antimicrobial activities against gram-positive (S. aureus) and gram-negative (Klebsiella pneumoniae) bacteria.

Objective This study aimed to study the efficacy of chlorhexidine scrub, zinc oxide nanoparticles (ZnO-NPs) socks and the combination of chlorhexidine scrub and ZnO-NPs socks in treatment of pitted keratolysis.

Material and Methods Male security guards and hospital porters , who had pitted keratolysis were invited to enroll in this study. The security guards and hospital porters who previously received any topical treatment including topical antibiotic, antiperspirant or aluminum chloride within 2 weeks prior to the study were excluded. Consent was informed and obtained from all participants. Participants were assessed for behavioral risk factors and level of foot odor measured by a self-assessed visual analogue scale (VAS), using questionnaires. Clinically examination of feet was done in all subjects by treatment-blinded dermatologists. Subjects were randomly assigned either chlorhexidine scrub, ZnO-NPs socks and the combination of chlorhexidine scrub and ZnO-NPs socks for 4 weeks. During the study, using of other topical treatment such as topical antibiotics, antiperspirant or aluminum chloride was not allowed. Participants who received chlorhexidine scrub were advised to wash their both soles with chlorhexidine scrub two times per day in the morning and evening. Participants who received ZnO-NPs socks were asked to wear these socks everyday and at least 8 hours per day. All were able to regularly participate in physical military training during the study. Four weeks after the treatment, clinical examinations by dermatologists and the cadets' self-assessment questionnaires, including feet odor by using VAS, treatment satisfaction and adverse effects, were used to evaluate the effectiveness. Pitted lesions improvement at plantar areas, evaluated by dermatologists, was divided into no improvement, slight improvement (a decrease of less than 50% in the number of pitted lesions) and much improvement (a decrease of 50% or above in the number of pitted lesions). Data were analyzed using SPSS version 18 (SPSS, Inc., Chicago, IL, USA).

Duration of study: 6 months Study design: Randomized control trial

Conditions

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Foot Dermatoses

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Investigators Outcome Assessors

Single blind controlled trial between participants, drug preparing team, doctors, investigators, and outcome assessors.

Study Groups

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Chorhexidine scrub

Chorhexidine scrub was given to patients for 4 weeks

Group Type ACTIVE_COMPARATOR

Chorhexidine scrub

Intervention Type DRUG

Chorhexidine scrub was given to patients for 4 weeks

ZnO-NPs socks

ZnO-NPs socks to patients for 4 weeks

Group Type ACTIVE_COMPARATOR

ZnO-NPs socks

Intervention Type DEVICE

ZnO-NPs socks was given to patients for 4 weeks

Combination of chorhexidine scrub and ZnO-NPs socks

Chorhexidine scrub and ZnO-NPs socks to patients for 4 weeks

Group Type ACTIVE_COMPARATOR

Combination of chorhexidine scrub and ZnO-NPs socks

Intervention Type COMBINATION_PRODUCT

Combination of chorhexidine scrub and ZnO-NPs socks was given to patients for 4 weeks

Interventions

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Chorhexidine scrub

Chorhexidine scrub was given to patients for 4 weeks

Intervention Type DRUG

ZnO-NPs socks

ZnO-NPs socks was given to patients for 4 weeks

Intervention Type DEVICE

Combination of chorhexidine scrub and ZnO-NPs socks

Combination of chorhexidine scrub and ZnO-NPs socks was given to patients for 4 weeks

Intervention Type COMBINATION_PRODUCT

Eligibility Criteria

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Inclusion Criteria

* Male security guards and hospital porters , who had pitted keratolysis

Exclusion Criteria

* Male security guards and hospital porters who previously received any topical treatment including topical antibiotic, antiperspirant or aluminum chloride within 2 weeks prior to the study.

Minimum Eligible Age

18 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

Yes