Neoplasms

Skin and Connective Tissue Diseases

All Conditions

Symptoms and General Pathology

Rare Diseases

Melanoma

Skin Neoplasms

Pigmentation Disorders

Neuroendocrine Tumors

Neuroectodermal Tumors

Neuroectodermal Tumors, Primitive

Neoplasms, Germ Cell and Embryonal

Neoplasms by Histologic Type

Neoplasms, Nerve Tissue

Nevus, Pigmented

Nevus

Nevi and Melanomas

Skin Diseases

Neuroendocrine Tumor

Neuroepithelioma

Anti-Inflammatory Agents

Antirheumatic Agents

Analgesics

All Drugs and Chemicals

Chrysarobin

All patients enrolled with with suspicious pigmented skin tumours will be scanned with reflectance confocal microscopy and photoacoustic imaging by an experienced examiner in a 30 minutes to 1-hour session. Subsequently, material for RNA and lipid analysis is obtained from tape-stripped lesional skin at the bedside. The skin tumors in patients enrolled will subsequently be treated according to hospital and national guidelines.

In vivo RCM will be used to diagnose pigmented tumours at a cellular level and provide information on skin microarchitecture. MSOT detects skin chromophores as melanin, hemoglobin, water, collagen, and lipids, which will be included in analysis of diagnostic accuracies. MSOT will also be used to measure tumour thickness; delineate tumour borders and analyze blood flow in blood vessels. Potential diagnostic features from each lesion type will be tested. RNA and lipid profiles from tape stripping results will be compared to imaging and histopathology diagnosis.

Reflectance confocal microscopy (RCM), Photoacoustic imaging (PAI) and tape-strippng of RNA and lipids

Mette Mogensen, MD, PhD

In this clinical feasibility study the investigators will test and compare two advanced optical imaging technologies, lipid and RNA tape stripping with regards to diagnostic accuracies for fast bedside diagnosis of pigmented skin tumours.

This original clinical research project utilizes cutting-edge medical imaging technologies for diagnosis of pigmented skin tumours, combined for the first time in Denmark, with molecular RNA and lipid analysis of superficial tumours cells. The scanning technologies are reflectance confocal microscopy (RCM), which is a microscope applied directly to the skin surface, and photoacoustic imaging, also termed multispectral optoacoustic imaging (MSOT), which is an imaging technology actually listening to the skin for immediate bedside diagnosis of pigmented skin tumors. The hypothesis is that treatment guided by diagnostic bedside skin scanning, combined with tumour tape-stripping and RNA and lipid analysis can increase diagnostic accuracy compared to visual inspection of the skin tumour and thus decrease time delay from diagnosis to efficient treatment

This prospective non-blinded clinical study will include 75 patients with suspicious pigmented skin tumours (i.e. malignant melanomas, lentigo maligna, pigmented nevi, and pigmented basal cell carcinomas) referred to or diagnosed at Dept. of Dermatology, BFH. All tumours are histologically verified by skin biopsy or surgical excision. Patients who meet the inclusion criteria will be enrolled if they consent. If patients demonstrate more than one skin tumour within the same anatomical location, only one lesions will be included and scanned.

Fast Track Diagnosis of Skin Cancer by Advanced Imaging Technologies and Tumour Tapestripping

Fast Track Diagnosis of Malignant Melanoma by Two Advanced Imaging Technologies and Tumour Tapestripping of RNA and Lipids

The study will be performed in accordance with ICH GCP Guidelines and Danish Health care authorities. It will be registered at The National Committee on Health Research Ethics, Danish Medicines Agency, and The Danish Data Protection Agency. Study conduction and reports are in accordance with GCP CPMP/ICH/135/95 and European Medicines Agency directive 2001/83/EC.

The study will be published in an international dermatological journal and presented at scientific conferences. Positive, negative and inconclusive results will be published and inconclusive results will be published at www.clinicaltrials.gov and www.clinicaltrialsregister.eu . Authorships are given according to the Vancouver guidelines.

Will be presented as sensitivity, specificity, and positive and negative predictive values. Tumor thickness measurements using MSOT will be measured and reported in millimeters. The blood flow in dermal blood vessels will be measured quantitatively by MSOT and vascular morphology will be described qualitatively. RCM images will be evaluated qualitatively regarding cellular changes, skin micromorphology and characteristic malignant melanoma features.

Examination of the expression of a total of 22 selected RNA molecules in suspicious skin tumours will be investigated by quantitative reverse-transcription methods with the use of the TaqMan method (Thermo Fisher Scientific).

We will analyze lipids obtained by tape-stripping from surface cells in pigmented lesions by ex vivo spectroscopic near-infrared optical coherence tomography (OCT), performed at DTU: Dept of Photonics Lab Facilities.

Study title	NCT ID	Conditions	Interventions	Eligibility	Organization	Link
Fast Track Diagnosis of Skin Cancer by Advanced Imaging Technologies and Tumour Tapestripping	NCT05389085	Skin Cancer Malignant Melan...	Reflectance con...	18 Years -	University Hospital Bispebjerg and Frederiksberg
Fast Track Diagnosis of Skin Cancer by Advanced Imaging Technologies and Tumour Tapestripping	NCT05389085	Skin Cancer Malignant Melan...	Reflectance con...	18 Years -	University Hospital Bispebjerg and Frederiksberg

Spots Global Cancer Trial Database for photoacoustic techniques