ClinicalTrials.gg
CompletedNCT05356572Updated Oct 10, 2023

A Pre-market Study to Evaluate the Performance and Safety of a Skin Preparation Device for Removal of Dry Crusty Skin

An interventional study of Investigational Skin Preparation Device and GMDN 47102 / Electrode Skin Abrasive Pad in Keratosis, Actinic, Actinic Lesion and Solar Keratosis/Sunburn, sponsored by Mirka Ltd. Completed at 1 site in Finland. Open to participants aged 18 Years to 100 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2023-10-10.

Sponsored by Mirka Ltd · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
26
Allocation
Randomized
Ages
18 Years to 100 Years
Sex
All
01

Study summary

In this clinical one-site investigation the performance and safety of a skin preparation device will be evaluated for removing hyperkeratotic skin prior to further medical treatment. Comfort and pain during skin preparation, as well as performance and safety of device, will be compared to comparators on separate skin areas for every subject.

02

Conditions studied

  • Keratosis, Actinic
  • Actinic Lesion
  • Solar Keratosis/Sunburn
  • Hyperkeratosis
  • Hyperkeratotic Callus
  • Hyperkeratotic; Lesion
  • Hyperkeratotic Actinic Keratosis
03

In context

Keratosis, Actinic

343 studies on the registry are indexed under Keratosis, Actinic; 29 are open to participants now.

This study's enrollment of 26 is below the median of 60 across 295 interventional studies indexed under Keratosis, Actinic.

Browse Keratosis, Actinic studies →

Lead sponsor

This is the only study on the registry with Mirka Ltd as lead sponsor.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 100 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Attending the clinic for treatment of actinic keratosis using daylight photodynamic therapy
  • Age: 18 - 100 years.
  • Available for two follow-up visits: two weeks after treatment and 4 months after treatment
  • Provision of i.e., subject must be able to understand and sign the patient Information and Consent Form
  • Subject have been informed on the nature, the scope and the relevance of the study

Exclusion criteria

Exclusion Criteria:

  • Known or suspected allergy/ to phenol formaldehyde
  • Wound at the skin site to be treated
  • Documented skin disease at the time of enrollment, as judged by the investigator
  • Previously enrolled in the present investigation
  • Inclusion in other ongoing investigations simultaneously that would preclude the subject from participating in this investigation as judged by the investigator
  • Actinic keratosis treatment obtained within last 6 months
  • Involvement in the planning and conduct of the clinical investigation (applies to all investigation site staff and third party vendor)
  • Any subject that according to Medical Research Act, paragraphs 7-10, is deemed unsuitable for study enrolment.
  • Complications that would increase wound risks if product would be used.
Terms in these criteria, in plain language(3)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
26 participants (actual)

Study arms

  • Active comparator
    Investigational Skin Preparation Device versus Disposable Dermal Curette

    Device: Investigational Skin Preparation Device · Device: UMDNS 13-230 / Biopsy punch (Dermal Curette)

  • Active comparator
    Investigational Skin Preparation Device versus Abrasive Pad for Skin Preparation

    Device: Investigational Skin Preparation Device · Device: GMDN 47102 / Electrode Skin Abrasive Pad

Interventions

  • DeviceInvestigational Skin Preparation Device

    Removal of hyperkeratotic skin with Investigational Skin Preparation Device

  • DeviceGMDN 47102 / Electrode Skin Abrasive Pad

    Removal of hyperkeratotic skin with Abrasive Pad for Skin Preparation

  • DeviceUMDNS 13-230 / Biopsy punch (Dermal Curette)

    Removal of hyperkeratotic skin with Disposable Dermal Curette

06

What researchers measure

Primary outcomes

  1. Grade of hyperkeratotic skin removal

    Sufficient hyperkeratotic skin removal in comparison to comparative methods. The removal of hyperkeratotic skin is assessed visually and by palpation. Removal of hyperkeratotic skin measurement grades: All hyperkeratotic skin removed, Partial hyperkeratotic skin removed, None hyperkeratotic skin removed.

    Time frame: Day 0

Secondary outcomes

  1. Grade of injury to skin / grade of skin irritation / grade of allergic skin reaction

    Investigator assessment of adverse effects on skin in comparison to the comparative methods. Grade of injury to skin: none, mild, moderate, severe. Grade of skin irritation: none, mild, moderate, severe. Grade of allergic skin reaction: none, mild, moderate, severe.

    Time frame: Day 0

  2. Grade of skin irritation / grade of allergic skin reaction

    Investigator assessment of adverse effects on skin in comparison to the comparative methods. Grade of skin irritation: none, mild, moderate, severe. Grade of allergic skin reaction: none, mild, moderate, severe.

    Time frame: 14 day follow-up

  3. Duration of operation time per treated skin area

    Operation time assessed by the mean difference in time per treated skin area to remove the hyperkeratotic skin in comparison to comparative methods.

    Time frame: Day 0

  4. Presence of actinic keratosis

    Presence of actinic keratosis (AK) is measured by number of different grades of AK lesions. Number of different grades of AK lesions: None, Grade I AK lesions, Grade II AK lesions, Grade III AK lesions.

    Time frame: Day 0

  5. Clearance of actinic keratosis

    Number of different grades of actinic keratosis (AK) lesions are measured: None, Grade I AK lesions, Grade II AK lesions, Grade III AK lesions. Actinic keratosis clearance is assessed as the number of cleared actinic keratosis lesions at 4th month follow-up divided by the actinic keratosis lesion number at Day 0. Clearance will be reported in %. A high %-value means a high number of cleared lesions.

    Time frame: 4th month follow-up

  6. Physician comfort during skin preparation using an investigator questionnaire

    Rate of physician comfort when comparing the investigational product versus comparative methods. The endpoint will utilize a questionnaire for the investigator/nurse to fill in.

    Time frame: Day 0

  7. Subject comfort during skin preparation using a subject questionnaire

    Rate of subject comfort (including skin sensation and heating of skin) when comparing the investigational product with comparative methods. The endpoint will utilize a questionnaire for the subject to fill in. Skin sensation during skin preparation: Very pleasant, Pleasant, Neutral, Unpleasant, Very unpleasant. Heating of skin during skin preparation: None, Mild temperature rise, Moderate temperature rise, High temperature rise, Burning.

    Time frame: Day 0

  8. Subject pain sensation during skin preparation

    Rate of pain using visual analogue scale (VAS). VAS: 0 - 10 (0= No pain and 10 = worst possible pain)

    Time frame: Day 0

  9. Subject pain sensation during daylight photodynamic treatment

    Rate of pain using visual analogue scale (VAS). VAS: 0 - 10 (0= No pain and 10 = worst possible pain)

    Time frame: Day 0

07

Study locations

1 site
  • Vaasa Central Hospital
    Vaasa, 65130, Finland
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 10, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05356572
Lead sponsor
Mirka Ltd
Collaborators
Clinius Ltd
Responsible party
Sponsor
First posted
May 2, 2022
Start date
Sep 1, 2022
Primary completion
Sep 26, 2023
Completion
Sep 26, 2023
Last update
Oct 10, 2023

Study contacts

Johanna H Hagman, M.D, PhD
principal investigator · Vaasa Central Hospital, Vaasa, Finland

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Oct 2023. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion