NCT05712551

Brief Summary

It has been suggested that pathologists' diagnostic accuracy and confidence could be improved if they gained access to additional clinical information and in-vivo clinical and dermoscopic images of melanocytic tumors. This study examines the effect of digital training for pathologists in interpreting dermoscopic and clinical skin tumor images. The primary outcome of the upcoming DAHT RCT (Dermoscopy Augmented Histology Trial, a randomized controlled trial) is the diagnostic value (accuracy, sensitivity, and specificity) for the intervention and control group. For this purpose, we need an expert agreeable MPATH-Dx classification and diagnosis for all DAHT cases. The DAHT consensus trial strives to establish this gold standard through a four-phased Delphi-like process. Aim: To establish an expert agreeable MPTAH-Dx classification and diagnosis for all DAHT cases. Data collection of DAHT cases: Department of plastic surgery, Herlev hospital, year 2020-2021 DAHT platform: Made in 2021-2023 by Melatech Consensus agreement: Four dermatopathologists assess all DAHT cases, year 2023-2024

Trial Health

55
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
4

participants targeted

Target at below P25 for all trials

Timeline
Completed

Started Apr 2023

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
enrolling by invitation

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

January 16, 2023

Completed
18 days until next milestone

First Posted

Study publicly available on registry

February 3, 2023

Completed
3 months until next milestone

Study Start

First participant enrolled

April 24, 2023

Completed
1.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 29, 2024

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

December 29, 2025

Completed
Last Updated

June 17, 2024

Status Verified

June 1, 2024

Enrollment Period

1.7 years

First QC Date

January 16, 2023

Last Update Submit

June 14, 2024

Conditions

Outcome Measures

Primary Outcomes (1)

  • Gold standard diagnosis by using a Delphi-like process

    Diagnostic agreement among participating experts in all DAHT cases with individual assessments and, later on, a discussion about ambiguous cases.

    3 months

Eligibility Criteria

Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Experts in dermatopathology who are invited and willing to participate and, if necessary, discuss their diagnosis with other participants in an online meeting.r

You may qualify if:

  • well-acknowledged expert in dermatopathology
  • Invited by our group

You may not qualify if:

  • Do not assess all DAHT cases

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Herlev University Hospital

Herlev, 2730, Denmark

Location

Related Publications (9)

  • Barnhill RL, Elder DE, Piepkorn MW, Knezevich SR, Reisch LM, Eguchi MM, Bastian BC, Blokx W, Bosenberg M, Busam KJ, Carr R, Cochran A, Cook MG, Duncan LM, Elenitsas R, de la Fouchardiere A, Gerami P, Johansson I, Ko J, Landman G, Lazar AJ, Lowe L, Massi D, Messina J, Mihic-Probst D, Parker DC, Schmidt B, Shea CR, Scolyer RA, Tetzlaff M, Xu X, Yeh I, Zembowicz A, Elmore JG. Revision of the Melanocytic Pathology Assessment Tool and Hierarchy for Diagnosis Classification Schema for Melanocytic Lesions: A Consensus Statement. JAMA Netw Open. 2023 Jan 3;6(1):e2250613. doi: 10.1001/jamanetworkopen.2022.50613.

    PMID: 36630138BACKGROUND
  • Whiteman DC, Green AC, Olsen CM. The Growing Burden of Invasive Melanoma: Projections of Incidence Rates and Numbers of New Cases in Six Susceptible Populations through 2031. J Invest Dermatol. 2016 Jun;136(6):1161-1171. doi: 10.1016/j.jid.2016.01.035. Epub 2016 Feb 20.

  • Glasziou PP, Jones MA, Pathirana T, Barratt AL, Bell KJ. Estimating the magnitude of cancer overdiagnosis in Australia. Med J Aust. 2020 Mar;212(4):163-168. doi: 10.5694/mja2.50455. Epub 2019 Dec 19.

  • Elmore JG, Barnhill RL, Elder DE, Longton GM, Pepe MS, Reisch LM, Carney PA, Titus LJ, Nelson HD, Onega T, Tosteson ANA, Weinstock MA, Knezevich SR, Piepkorn MW. Pathologists' diagnosis of invasive melanoma and melanocytic proliferations: observer accuracy and reproducibility study. BMJ. 2017 Jun 28;357:j2813. doi: 10.1136/bmj.j2813.

  • Scolyer RA, Soyer HP, Kelly JW, James C, McLean CA, Coventry BJ, Ferguson PM, Rawson RV, Mar VJ, de Menezes SL, Fishburn P, Stretch JR, Lee S, Thompson JF. Improving diagnostic accuracy for suspicious melanocytic skin lesions: New Australian melanoma clinical practice guidelines stress the importance of clinician/pathologist communication. Aust J Gen Pract. 2019 Jun;48(6):357-362. doi: 10.31128/AJGP-11-18-4759.

  • Ferrara G, Argenyi Z, Argenziano G, Cerio R, Cerroni L, Di Blasi A, Feudale EA, Giorgio CM, Massone C, Nappi O, Tomasini C, Urso C, Zalaudek I, Kittler H, Soyer HP. The influence of clinical information in the histopathologic diagnosis of melanocytic skin neoplasms. PLoS One. 2009;4(4):e5375. doi: 10.1371/journal.pone.0005375. Epub 2009 Apr 30.

  • Bedlow AJ, Cliff S, Melia J, Moss SM, Seyan R, Harland CC. Impact of skin cancer education on general practitioners' diagnostic skills. Clin Exp Dermatol. 2000 Mar;25(2):115-8. doi: 10.1046/j.1365-2230.2000.00590.x.

  • Badertscher N, Tandjung R, Senn O, Kofmehl R, Held U, Rosemann T, Hofbauer GF, Wensing M, Rossi PO, Braun RP. A multifaceted intervention: no increase in general practitioners' competence to diagnose skin cancer (minSKIN) - randomized controlled trial. J Eur Acad Dermatol Venereol. 2015 Aug;29(8):1493-9. doi: 10.1111/jdv.12886. Epub 2014 Dec 10.

  • Ternov NK, Vestergaard T, Holmich LR, Karmisholt K, Wagenblast AL, Klyver H, Hald M, Schollhammer L, Konge L, Chakera AH. Reliable test of clinicians' mastery in skin cancer diagnostics. Arch Dermatol Res. 2021 May;313(4):235-243. doi: 10.1007/s00403-020-02097-8. Epub 2020 Jun 28.

MeSH Terms

Conditions

Melanoma

Condition Hierarchy (Ancestors)

Neuroendocrine TumorsNeuroectodermal TumorsNeoplasms, Germ Cell and EmbryonalNeoplasms by Histologic TypeNeoplasmsNeoplasms, Nerve TissueNevi and MelanomasSkin NeoplasmsNeoplasms by SiteSkin DiseasesSkin and Connective Tissue Diseases

Study Officials

  • Lisbet Rosenkrantz Hôlmich, MD. prof.

    Herlev University Hospital, Denmark

    STUDY DIRECTOR

Study Design

Study Type
observational
Observational Model
OTHER
Time Perspective
OTHER
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Medical doctor

Study Record Dates

First Submitted

January 16, 2023

First Posted

February 3, 2023

Study Start

April 24, 2023

Primary Completion

December 29, 2024

Study Completion

December 29, 2025

Last Updated

June 17, 2024

Record last verified: 2024-06

Locations