NCT04353050

Brief Summary

This is a multicenter, ambispective, low-interventional clinical study evaluating molecular genetic markers for non-invasive differential diagnosis of benign and malignant pigmented skin and mucosal neoplasms. In retrospective cohorts genetics markers will be identified. In prospective cohort non-invasive adhesive system will be tested to identify malignant or benign lesions with prespecified sensitivity and specificity compared to other non-invasive techniques (i.e. dermoscopy) and using histopathological examination as a "golden standard".

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
350

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Apr 2020

Longer than P75 for not_applicable

Geographic Reach
1 country

2 active sites

Status
unknown

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

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

April 1, 2020

Completed
12 days until next milestone

First Submitted

Initial submission to the registry

April 13, 2020

Completed
7 days until next milestone

First Posted

Study publicly available on registry

April 20, 2020

Completed
2.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2023

Completed
10 months until next milestone

Study Completion

Last participant's last visit for all outcomes

November 1, 2023

Completed
Last Updated

June 14, 2022

Status Verified

June 1, 2022

Enrollment Period

2.8 years

First QC Date

April 13, 2020

Last Update Submit

June 12, 2022

Conditions

Keywords

non-invasive diagnosismelanomaatypical molesdysplastic nevi

Outcome Measures

Primary Outcomes (1)

  • Sensitivity and specificity on the investigated non-invasive genetic method for diffrential diagnosis of benign and malignant melanocytic lesions compared to histopathological examination

    •Assessment of the sensitivity and specificity of a complex of molecular genetic studies applicable for non-invasive differential diagnosis of benign and malignant melanocytic neoplasms of the skin and mucous membranes in comparison with a standard histological examination

    April 2020 - Nov 2022

Secondary Outcomes (3)

  • Sensitivity and specificity on the investigated non-invasive genetic method for diffrential diagnosis of benign and malignant melanocytic lesions compared to other non-invasive diagnostic tools (i.e. dermoscopy)

    up to 12 months

  • Describe some parameters of the identified malignant tumors

    up to 12 months

  • Describe the frequency of relapse (local, regional and systemic) within the observation period

    up to 3 years

Study Arms (3)

Cohort 1 (retrospective)

NO INTERVENTION

Only data from medical records and formalin-fixed paraffin-embedded tissue blocks will be collected from patients in this cohort. Patients with skin or mucosal melanoma and dysplastic nevi which have been already excised are eligible. FFPE tissue blocks with MPATH-Dx Class 1-2 vs Class 3-5 will be collected in approximately 1:1 ratio

Cohort 2 (retrospective)

NO INTERVENTION

Only data from medical records, formalin-fixed paraffin-embedded tissue blocks and cytologic slides will be collected from patients in this cohort. Patients with skin or mucosal melanoma and dysplastic nevi which have been already excised are eligible. FFPE tissue blocks with MPATH-Dx Class 1-2 vs Class 3-5 will be collected in approximately 1:1 ratio

Cohort 3 (prospective)

OTHER

Patients with pigmented lesions on the skin or mucosa who are referred for excisional biopsy will be offered to apply investigated non-invasive adhesive system on their lesion just before the excisional biopsy. After biopsy cytological slides and FFPE tissue blocks will be prepared. All three types of obtained samples will be investigated separately (adhesive patches, cytologic slides and FFPE tissue blocks) for genetic markers whereas cytologic slides and FFPE tissue blocks will be processed also routinely and regular cytologic and histopathologic report will be generated.

Procedure: Non-invasive adhesive system (patch)

Interventions

The already registered on the market adhesive skin patch will be applied and removed for several times on the pigmented skin (or mucosal) lesion just before the preplanned excisional biopsy after local anaesthesia have been already administered. Excisional biopsy and local anaesthesia are not the part of this study and will be carried out according to local practice

Cohort 3 (prospective)

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Cohort 1 (retrospective):
  • Histologically confirmed diagnosis of melanocytic neoplasm of the skin or mucous membranes (benign, malignant or with unclear potential);
  • The presence of a paraffin block with a tumor suitable for molecular genetic analysis;
  • Signed informed consent form for living patients (for deceased, signing of a consent form with legal representatives is not required);
  • Known clinical data of the patient (gender, age, skin phototype), hereditary history, medical history and follow-up of treatment outcomes for at least 5 years
  • \. Cohort 2 (retrospective):
  • Histologically confirmed diagnosis of melanocytic neoplasm of the skin or mucous membranes (benign, malignant or with unclear potential);
  • The presence of a paraffin block with a tumor suitable for molecular genetic analysis
  • The presence of cytological preparations (at least 2 glasses) of the primary tumor with tumor material
  • Signed informed consent form for living patients (for deceased, signing of a consent form with legal representatives is not required);
  • A known medical history and follow-up of treatment outcomes for at least 6 months.
  • \. Cohort 3 (prospective):
  • Clinically (including any type of dermatoscopy or other non-invasive diagnostic methods) suspected diagnosis of malignant melanocytic neoplasm (or neoplasms) of the skin or mucous membranes (or lesion(s) with unclear malignant potential)
  • Signed Informed Consent Form

You may not qualify if:

  • Cohort 1:
  • Unknown histological diagnosis (no information on the melanocytic nature of the neoplasm)
  • Unsuitable for analysis paraffin block with a tumor or its absence
  • Unknown history or lack of traceability after diagnosis within 5 years
  • \. Cohort 2:
  • Unknown histological diagnosis (no information on the melanocytic nature of the neoplasm)
  • Unsuitable for analysis paraffin block with a tumor or its absence
  • Unsuitable for analysis cytological preparations/smears (or the absence of tumor cells in cytological preparations)
  • Unknown history or lack of traceability after diagnosis within 6 months.
  • \. Cohort 3 (prospective):
  • The available morphological or cytological confirmation of the nature of the neoplasm (s) (benign or malignant), which (s) is planned to be removed in the framework of this study,
  • Ulcerated neoplasms;
  • Contact bleeding neoplasms;
  • Non-melanocytic neoplasms;
  • Neoplasms with an area of more than 5 sq. cm
  • +3 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

N.N. Blokhin Russian Cancer Research Center

Moscow, Moscow, 115478, Russia

RECRUITING

Privolzhsky Research Medical University of the Ministry of Health of the Russian Federation

Nizhny Novgorod, 603155, Russia

RECRUITING

MeSH Terms

Conditions

MelanomaNevusNevus, BlueNevus, PigmentedNevus, Epithelioid and Spindle CellNevus, Spindle CellDysplastic Nevus Syndrome

Interventions

Transdermal Patch

Condition Hierarchy (Ancestors)

Neuroendocrine TumorsNeuroectodermal TumorsNeoplasms, Germ Cell and EmbryonalNeoplasms by Histologic TypeNeoplasmsNeoplasms, Nerve TissueNevi and MelanomasSkin NeoplasmsNeoplasms by SiteSkin DiseasesSkin and Connective Tissue DiseasesNeoplastic Syndromes, HereditaryGenetic Diseases, InbornCongenital, Hereditary, and Neonatal Diseases and Abnormalities

Intervention Hierarchy (Ancestors)

Equipment and Supplies

Study Officials

  • Igor V Samoylenko, MD, PhD

    N.N. Blokhin Russian Cancer Research Center of Russian MoH

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Igor V Samoylenko, MD, PhD

CONTACT

Lev V Demidov, MD, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
DIAGNOSTIC
Intervention Model
PARALLEL
Model Details: Ambispective study with two retrospective cohorts and one prospective cohort
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator, Senior Researcher, Department of Oncodermatology, MD, PhD

Study Record Dates

First Submitted

April 13, 2020

First Posted

April 20, 2020

Study Start

April 1, 2020

Primary Completion

January 1, 2023

Study Completion

November 1, 2023

Last Updated

June 14, 2022

Record last verified: 2022-06

Data Sharing

IPD Sharing
Will not share

Locations