Dermoscopy Augmented Histology Trial, a Randomized Controlled Trial
DAHT-RCT
Correlation Between Online Case-based Training of Pathologists in Dermoscopic Images and Diagnostic Accuracy in Histopathological Interpretation of Skin Lesions Suspicious of Melanoma
1 other identifier
interventional
258
0 countries
N/A
Brief Summary
Pathologists provide the current gold standard in skin lesion diagnostics, most often primarily based on the interpretation of histological slides. Still, 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. This study aims to evaluate the impact of dermoscopy training on pathologists' assessment of melanoma-suspected skin lesions. 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 Enrollment of pathologists: Randomization and assessment DAHT cases, year 2026.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Aug 2026
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
July 6, 2021
CompletedFirst Posted
Study publicly available on registry
August 13, 2021
CompletedStudy Start
First participant enrolled
August 13, 2026
ExpectedPrimary Completion
Last participant's last visit for primary outcome
December 13, 2026
Study Completion
Last participant's last visit for all outcomes
December 13, 2027
June 25, 2026
June 1, 2026
4 months
July 6, 2021
June 24, 2026
Conditions
Outcome Measures
Primary Outcomes (2)
Expert Consensus Agreement MPATH-Dx Diagnosis Analysis:
Assessing the pathologists' ability to correctly identify the exact diagnosis compared to a gold standard established by a consensus panel of four expert pathologists.
6 months
Expert Consensus Agreement MPATH-Dx Class Analysis:
Evaluating the pathologists' ability to classify lesions using the MPATH-Dx 2.0 framework, which categorizes lesions into one of four diagnostic classes.
6 months
Secondary Outcomes (9)
Inter-rater reliability
6 months
training time vs time spent/DAHT case
1 month
Use of clinical information
6 months
Use of clinical and/or dermoscopic images
6 months
Time spend on DAHT case
6 months
- +4 more secondary outcomes
Study Arms (2)
Intervention
ACTIVE COMPARATORAccess to DermLoop Learn IT platform
Control group
NO INTERVENTIONNo access to DermLoop Learn
Interventions
DermLoop Learn is a digital educational platform with case training on a library of 18,000+ benign and malignant skin lesions, educational material on the correlation between dermoscopy and histology, as well as written learning modules for the most common skin lesion diagnoses. The educational platform will give the user feedback on the image-based case training in dermoscopic diagnostic accuracy and adjust the cases depending on the user's progression.
Eligibility Criteria
You may qualify if:
- Pathologists are required to evaluate melanocytic lesions routinely
- Doctors must be registered authorized health personnel
- Access to a smartphone/tablet/computer with internet
You may not qualify if:
- \- Assessment of less than 30 DAHT cases
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Herlev Hospitallead
Related Publications (9)
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.
PMID: 31858624BACKGROUNDElmore 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.
PMID: 28659278BACKGROUNDScolyer 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.
PMID: 31220881BACKGROUNDFerrara 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.
PMID: 19404399BACKGROUNDBedlow 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.
PMID: 10733633BACKGROUNDBadertscher 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.
PMID: 25491768BACKGROUNDBarnhill 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: 36630138BACKGROUNDWhiteman 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.
PMID: 26902923RESULTTernov 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.
PMID: 32596742RESULT
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY CHAIR
Louisa Bønløkke Nervil
Herlev Hospital, Denmark - Department of plastic surgery
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- INVESTIGATOR, OUTCOMES ASSESSOR
- Masking Details
- Participating Pathologists are either given access to a learning intervention called DermLoop Learn for a short period or not given access to any learning intervention. During the trial, both groups interpret histopathological skin lesions with access to clinical information, an overview picture, and a dermoscopic picture of the lesion.
- Purpose
- DIAGNOSTIC
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Medical doctor
Study Record Dates
First Submitted
July 6, 2021
First Posted
August 13, 2021
Study Start (Estimated)
August 13, 2026
Primary Completion (Estimated)
December 13, 2026
Study Completion (Estimated)
December 13, 2027
Last Updated
June 25, 2026
Record last verified: 2026-06
Data Sharing
- IPD Sharing
- Will not share