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Trial registered on ANZCTR
Registration number
ACTRN12625000530426p
Ethics application status
Submitted, not yet approved
Date submitted
12/05/2025
Date registered
26/05/2025
Date last updated
26/05/2025
Date data sharing statement initially provided
26/05/2025
Type of registration
Prospectively registered
Titles & IDs
Public title
A randomised controlled trial comparing materials needed for skin punch and shave biopsies
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Scientific title
A randomised controlled trial comparing infection rates in adult patients undergoing 2-4mm skin punch and shave biopsies with or without a sterile dressing pack
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Secondary ID [1]
314414
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Nil known
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Universal Trial Number (UTN)
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Trial acronym
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Infection rate
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Dermatological diagnosis
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Condition category
Condition code
Skin
333807
333807
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0
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Dermatological conditions
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Participants undergoing a 2-4 mm skin punch or shave biopsy at Drummoyne Dermatology (a dermatology outpatient clinic) will be randomised into two groups:
Intervention group: Biopsy performed using 2-4 mm punch or shave biopsy tool, 5% chlorhexidine solution, hyfrecator and suture material (if required) without the use of a dressing pack.
Control group: Biopsy performed as per routine clinical practice using 2mm punch or shave biopsy tool, 5% chlorhexidine solution, hyfrecator and suture material (if required) with a dressing pack. Dressing pack contains: Sterile field PE material 50 x 49cm, dressing tray, 4 plain gauze swabs 7.5x7.5cm, blue sterile field 60x60cm, 3 aqua forceps 107mm, paper dressing towel 2 ply.
The intervention being tested is the omission of a dressing pack and use of reduced materials during minor skin biopsy procedures. The biopsy will be performed by doctors working at the clinic. The strategy used to monitor adherence to the intervention is direct observation by research investigator.
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Intervention code [1]
331024
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Treatment: Devices
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Comparator / control treatment
Control group: Biopsy performed as per routine clinical practice using 2 to 4 mm punch or shave biopsy tool, 5% chlorhexidine solution, hyfrecator and suture material (if required) with a dressing pack.
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Control group
Active
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Outcomes
Primary outcome [1]
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Incidence rate of infection following skin punch or shave biopsy.
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Assessment method [1]
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Assessed by clinical examination and/or telehealth review 7-14 days post procedure for signs of infection (defined as purulent discharge (REQUIRED) and one or more of the following: erythema, swelling, delayed wound healing, localised tenderness) as documented by treating clinician
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Timepoint [1]
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7-14 days post skin biopsy
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Secondary outcome [1]
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Time-to-onset of infection symptoms following biopsy
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Assessment method [1]
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Clinical examination or visual inspection when signs of infection (as above) identified by treating clinician or patient (if before/after follow up appointment)
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Timepoint [1]
447466
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measured in days post-procedure the maximum duration of follow up is 14 days
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Secondary outcome [2]
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Wastage of materials
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Assessment method [2]
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Measured by the number and type of unused or discarded materials recorded during and immediately after the skin biopsy procedure
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Timepoint [2]
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At time of procedure
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Secondary outcome [3]
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Cost of materials used during skin biopsy
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Assessment method [3]
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Cost data collected from clinical records and procurement logs, based on itemised material usage per participant
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Timepoint [3]
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At time of procedure
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Eligibility
Key inclusion criteria
Adults 18 years or older who can provide informed medical consent
Patients needing a 2 to 4 mm skin punch or shave biopsy as determined by treating clinician
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Minimum age
18
Years
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Maximum age
No limit
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Sex
Both males and females
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Can healthy volunteers participate?
No
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Key exclusion criteria
Patients under 18 years old
Patients from a non-English speaking background without a command of English
Patients who do not have the capacity to consent
Patients who do not require 2 to 4 mm punch or shave biopsy
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Study design
Purpose of the study
Diagnosis
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Allocation to intervention
Randomised controlled trial
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Group assignments will be concealed in sequentially numbered, opaque, sealed envelopes, which will be stored securely. Envelopes will be opened in numerical order only after the participant has been enrolled, ensuring allocation concealment.
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Randomisation will occur via a computer-generated permuted block randomisation sequence to ensure balance between groups. The allocation sequence will be prepared by an independent researcher not involved in participant enrolment or assessment.
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Masking / blinding
Open (masking not used)
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Who is / are masked / blinded?
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Intervention assignment
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Other design features
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Phase
Not Applicable
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Type of endpoint/s
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Statistical methods / analysis
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Recruitment
Recruitment status
Not yet recruiting
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Date of first participant enrolment
Anticipated
26/05/2025
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Actual
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Date of last participant enrolment
Anticipated
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Actual
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Date of last data collection
Anticipated
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Actual
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Sample size
Target
84
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Accrual to date
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Final
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Recruitment in Australia
Recruitment state(s)
NSW
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Funding & Sponsors
Funding source category [1]
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Self funded/Unfunded
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Name [1]
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Dr Rebecca Saunderson
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Address [1]
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Country [1]
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Australia
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Primary sponsor type
Individual
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Name
Dr Rebecca Saunderson - Drummoyne Dermatology
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Address
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Country
Australia
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Secondary sponsor category [1]
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None
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Name [1]
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Address [1]
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Country [1]
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Ethics approval
Ethics application status
Submitted, not yet approved
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Ethics committee name [1]
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Northern Sydney Local Health District Human Research Ethics Committee
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Ethics committee address [1]
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https://www.nslhd.health.nsw.gov.au/Research/ResearchOffice/Pages/HREC.aspx
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Ethics committee country [1]
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Australia
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Date submitted for ethics approval [1]
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25/03/2025
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Approval date [1]
317549
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Ethics approval number [1]
317549
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Summary
Brief summary
This study aims to compare two ways of performing skin biopsies, using a full sterile dressing pack versus a simplified method without it, to determine whether the simpler approach is just as safe and effective. Skin punch and shave biopsies are minor procedures used to diagnose skin conditions, including skin cancer. The current standard uses a sterile pack, which generates more waste and cost. However, clinician experience suggests that for small 2mm biopsies, using fewer materials may still lead to excellent patient outcomes. This research will test whether avoiding the sterile pack increases the risk of infection. The study’s hypothesis is that performing 2-4 mm skin biopsies without a sterile dressing pack is just as safe as doing them with full sterile materials. If proven, this could reduce healthcare waste, lower costs, and support environmentally sustainable practices, without compromising patient care.
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Trial website
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Trial related presentations / publications
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Public notes
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Contacts
Principal investigator
Name
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Dr Rebecca Saunderson
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Address
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Drummoyne Dermatology, 1/109 Victoria Rd, Drummoyne NSW 2047
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Country
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Australia
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Phone
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+61497104241
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Fax
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Email
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[email protected]
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Contact person for public queries
Name
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Alexandra Savage
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Address
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Drummoyne Dermatology, 1/109 Victoria Rd, Drummoyne NSW 2047
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Country
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Australia
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Phone
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+61439543670
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Fax
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Email
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[email protected]
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Contact person for scientific queries
Name
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Dr Rebecca Saunderson
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Address
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Drummoyne Dermatology, 1/109 Victoria Rd, Drummoyne NSW 2047
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Country
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Australia
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Phone
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+61497104241
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Fax
141408
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Email
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[email protected]
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Data sharing statement
Will the study consider sharing individual participant data?
No
What supporting documents are/will be available?
No Supporting Document Provided
Results publications and other study-related documents
Documents added manually
No documents have been uploaded by study researchers.
Documents added automatically
No additional documents have been identified.
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