ClinicalTrials.gg
TerminatedNCT04688749DermaSenseUpdated Jul 25, 2023

Use of Electrical Impedance Spectroscopy (EIS) for Early Diagnosis of Skin Damage

An observational study in Melanoma (Skin), Basal Cell Carcinoma and Squamous Cell Carcinoma, sponsored by Aristotle University Of Thessaloniki. Terminated at 1 site in Greece. Open to participants aged 8 Years to 90 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2023-07-25.

Primary conditionDysplastic Nevus SyndromeRegistry: MelanomaReclassifiedWhy we changed it
Registry
Melanoma — the first condition term the registry derived for this study.
ClinicalTrials.gg
Dysplastic Nevus Syndrome
Why
  1. The study's listed conditions name Dysplastic Nevus Syndrome, a narrower term within Melanoma.
Confidence
High: the new condition is named in the study's own listed conditions. Of 351 hand-checked studies reclassified this way, 68% were exactly right and 84% in the right disease family; the registry's first term was right for 5% (measured 2026-10-21). How we classify →
Wrong?
Tell us the study's main condition →

Sponsored by Aristotle University Of Thessaloniki · Observational

Why this study was terminated
Due to COVID-19
Study type
Observational
Model
Case-control
Time perspective
Cross-sectional
Enrollment
50
Ages
8 Years to 90 Years
Sex
All
01

Study summary

The purpose of this clinical study is to evaluate if the DermaSense prototype EIS scanner can provide medical decision support which can complement dermoscopy-based identification of the disease at time of biopsy decision.

Read the detailed description

This is a clinical study designed to evaluate if the DermaSense device can be a system of an automated analysis and classification of skin lesions aiming to provide a comprehensive, reliable and cost-effective approach to assist the Dermatologists' decision (biopsy, dermoscopy, histopathological analysis etc). The study enrollment will continue until a minimum of 180 subjects are enrolled in the study. Second Department of Dermatology, School of Medicine, Faculty of Health Sciences of the Aristotle University of Thessaloniki, at the "Papageorgiou" General Hospital will participate in this study. Dermatologists participating in the study will perform the patient and lesion assessment for biopsy as standard of care at the clinic.

EIS (electrical impedance spectroscopy) measurements will be done once per participant recommended by the Dermatologist based on their clinical interest in various areas of the skin. Two sets of measurements will be performed for each participant, either at a nevus in contrast with a nearby clear patch of skin, or at a skin damage area (melanoma, basal cell carcinoma (BCC), squamous cell carcinoma (SCC), etc) in contrast with a nearby clear patch of skin. Also, more repeated measurements may be needed to determine the validity of the measurement result. Evaluation and analysis of the measurement data will be done by the DermaSense team and will be used not only for applying appropriate statistical correlations compared to established dermatological diagnostic methods (eg dermοscopy, histopathological examinations, biopsies etc.) but also for training in artificial intelligence and machine learning methods. Finally, the participants will sign a consent form that is consistent with bioethical rules and according with EU GDPR regulation to protect their personal data.

02

Conditions studied

  • Melanoma (Skin)
  • Basal Cell Carcinoma
  • Squamous Cell Carcinoma
  • Dysplastic Nevus Syndrome
  • Lentigo Maligna
  • Seborrheic Keratosis
  • Lichen Planus-Like Keratosis
  • Carcinosarcoma

Keywords

  • Melanoma
  • Melanocytes
  • Malignancy
  • Bacal cell carcinoma
  • Squamous cell carcinoma
03

In context

Dysplastic Nevus Syndrome Reclassified

24 studies on the registry are indexed under Dysplastic Nevus Syndrome; 7 are open to participants now.

This study's enrollment of 50 is below the median of 283 across 16 observational studies indexed under Dysplastic Nevus Syndrome.

Browse Dysplastic Nevus Syndrome studies →

Lead sponsor

Aristotle University Of Thessaloniki is the lead sponsor of 282 studies on the registry; 55 are open to participants now.

Compared within Dysplastic Nevus Syndrome, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Melanoma. The counts are of registry records indexed under each term, refreshed daily. How we classify →

04

Who can participate

Ages eligible
8 Years to 90 Years
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

Greek citizens aged 8-90 years old, regardless of gender, who are diagnosed by Dermatologists as standard of care at the Second Dermatological Clinic of Papageorgiou General Hospital of Thessaloniki in Greece, which participates in the study.

Eligibility criteria

The inclusion criteria for patients in this study are as follows:

  • Male or female at least 8 years old
  • Individuals diagnosed with confirmed skin damage by Dermatologists
  • Lesions that present with unclear clinical presentation to allow for clinical diagnosis of benign or minimally dysplastic nevus (nevi), so necessitating a .
  • The inclusion of patients in this study is independent from the current therapy. During the study all patients will be kept on a therapy that is medically indicated
  • Participant himself or legal guardian/representative willing and consenting to participate to the study by giving written
  • Participants under 18 years old must have a parent, or / and other reliable caregiver who agrees to accompany him/her to the measurements, provide information about the participant as required by the protocol

The inclusion criteria for healthy controls in this study are as follows:

  • Male or female at least 8 years old
  • Matched healthy control population: Individuals without skin damage (melanoma, BCC, SCC, etc) that have been included in cohort.
  • Lesions that present with unclear clinical presentation to allow for clinical diagnosis of benign or minimally dysplastic nevus (nevi), so necessitating a biopsy.
  • The inclusion of patients in this study is independent from the current therapy. During the study all patients will be kept on a therapy that is medically indicated
  • Participant himself or legal guardian/representative willing and consenting to participate to the study by giving written informed consent
  • Participants under 18 years old must have a parent, or / and other reliable caregiver who agrees to accompany him/her to the measurements, provide information about the participant as required by the protocol

Exclusion Criteria:

  • concurrent participation in another relevant study
  • occurrence of skin damage during the study
  • Subjects who fail to provide informed consent
  • Study subjects with underlying medical disease which may alter ability to diagnose clinically or inhibit DermaSense prototype EIS scanner from collecting data
Terms in these criteria, in plain language(2)

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.

Biopsy and archival tissue

A biopsy takes a small piece of tissue to examine. “Archival tissue” is a sample already taken, for example at diagnosis, and kept by the hospital.

Whether a stored sample will do depends on when it was taken, how much there is and what the study needs. Ask whether the study accepts your stored sample or needs a new biopsy.

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.

05

Study design

Observational model
Case-control
Time perspective
Cross-sectional
Enrollment
50 participants (actual)
Patient registry
No

Groups and cohorts

  • Healthy Control

    Individuals without skin damage (melanoma, BCC, SCC, etc)

    Diagnostic Test: Electrical Impedence Spectroscopy DermaSense

  • Skin lesion

    Individuals diagnosed with confirmed skin damage by Dermatologists

    Diagnostic Test: Electrical Impedence Spectroscopy DermaSense

Interventions

  • Diagnostic testElectrical Impedence Spectroscopy DermaSense

    Two sets of measurements will be performed to each subject, either at a nevus in contrast with a nearby clear patch of skin. The duration of each measurement will last for approximately 1.5 minutes and the excel file will be directly available to researcher, allowing him/her for data storage and data visualization.

06

What researchers measure

Primary outcomes

  1. Comparison of Dermasense measurements

    Use of DermaSense prototype EIS scanner in detecting significant electrical impedance differences between malignant and benign skin lesions.

    Time frame: 2 weeks

  2. Electrical impedance spectroscopy (EIS) measurements

    Use of DermaSense prototype EIS scanner in measuring Electrical Impedance Spectroscopy (EIS) at 10 different frequencies in skin of various body surfaces.

    Time frame: 1 day

Secondary outcomes

  1. Decision support system

    Setting DermaSense prototype EIS scanner in clinical diagnosis of skin lesions, or at least as a potential decision support tool to more accurately identify skin lesions for surgical excision and histopathologic evaluation.

    Time frame: 5 months

07

Study locations

1 site
  • Laboratory of Medical Physics, AUTH
    Thessaloniki, Greece
08

References and documents

Publications

  • Apalla Z, Lallas A, Sotiriou E, Lazaridou E, Ioannides D. Epidemiological trends in skin cancer. Dermatol Pract Concept. 2017 Apr 30;7(2):1-6. doi: 10.5826/dpc.0702a01. eCollection 2017 Apr. PubMed 28515985 ↗
  • Mohr P, Birgersson U, Berking C, Henderson C, Trefzer U, Kemeny L, Sunderkotter C, Dirschka T, Motley R, Frohm-Nilsson M, Reinhold U, Loquai C, Braun R, Nyberg F, Paoli J. Electrical impedance spectroscopy as a potential adjunct diagnostic tool for cutaneous melanoma. Skin Res Technol. 2013 May;19(2):75-83. doi: 10.1111/srt.12008. Epub 2013 Jan 27. PubMed 23350668 ↗
  • Malvehy J, Hauschild A, Curiel-Lewandrowski C, Mohr P, Hofmann-Wellenhof R, Motley R, Berking C, Grossman D, Paoli J, Loquai C, Olah J, Reinhold U, Wenger H, Dirschka T, Davis S, Henderson C, Rabinovitz H, Welzel J, Schadendorf D, Birgersson U. Clinical performance of the Nevisense system in cutaneous melanoma detection: an international, multicentre, prospective and blinded clinical trial on efficacy and safety. Br J Dermatol. 2014 Nov;171(5):1099-107. doi: 10.1111/bjd.13121. Epub 2014 Oct 19. PubMed 24841846 ↗
09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Jul 2019 to primary completion in Dec 2022, 41 months.

How these figures are worked out, and which studies are left out of them.

Registered
Dec 24, 2020
First posted
Dec 30, 2020
StartActual
Jul 17, 2019
Primary completionActual
Dec 31, 2022
CompletionActual
Dec 31, 2022
Last update
Jul 25, 2023
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jul 25, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04688749
Responsible party
Emmanouil Papanastasiou (Assistant Professor, Aristotle University Of Thessaloniki) — Principal investigator
First posted
Dec 30, 2020
Start date
Jul 17, 2019
Primary completion
Dec 31, 2022
Completion
Dec 31, 2022
Last update
Jul 25, 2023

Study contacts

Emmanouil Papanastasiou, Dr.
principal investigator · Assistant Professor

Oversight

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

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

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