fPAM for the in Vivo Depth Measurement of Pigmented Lesions and Melanoma Depth

NCT ID: NCT02613325

Last Updated: 2018-02-14

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE1

Total Enrollment

24 participants

Study Classification

INTERVENTIONAL

Study Start Date

2015-06-08

Study Completion Date

2017-06-27

Brief Summary

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The investigators propose the use of functional photoacoustic microscopy (fPAM) to evaluate both benign and malignant pigmented lesions for tumor depth. Through fPAM analysis followed by histological examination, the investigators anticipate that they will be able to non-invasively determine tumor depth of pigmented lesions (moles and melanoma). In melanoma, tumor depth (Breslow's depth) is not only an important prognostic indicator, but also directs surgical treatment. The ultimate goal is to develop a sensitive clinical tool that will allow non-surgical evaluation of pigmented lesions, which eventually, will aid in melanoma diagnosis and management - potentially an earlier and more definitive surgical management.

In addition, the investigators propose to use the combination of fPAM and single-cell PAM to respectively image CTCs in trunk vessels and cuticle capillaries. Based on the investigators' murine models, the investigators anticipate that they will be able to differentiate CTCs from other blood cells and reliably calculate CTC concentration in a non-invasive manner. CTC concentration has been demonstrated to be a valuable indicator of a melanoma's metastatic potential and a potential tool in evaluating treatment efficacy. The ultimate goal is to develop a sensitive imaging device that will allow accurate evaluation of the risk of melanoma recurrence and metastases, that may facilitate treatment monitoring.

Detailed Description

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Conditions

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Pigmented Skin Lesion Melanoma

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

NONE

Study Groups

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Arm 1: fPAM imaging & Single cell PAM imaging

* fPAM imaging will be performed prior to scheduled excision. The time to excision will not be extended longer than 2 weeks for imaging purposes.
* When the participant presents for imaging, the area of the thickest lesion depth will be determined by fPAM. The area of deepest thickness will be marked perpendicular to the longest axis of the lesions and a clinical photo will be taken and placed in the image storage database.
* Surgical excision will be performed as standard of care and fPAM depth will be compared with histological examination.
* To image CTCs in cutaneous blood vessels, a small cuticle area on a finger will be imaged (Single cell PAM imaging) and the most distal cutaneous metastasis or metastasis of largest diameter will be imaged

Group Type EXPERIMENTAL

Functional photoacoustic microscopy

Intervention Type DEVICE

-Hybrid imaging technique that detects absorbed diffusive protons ultrasonically through the photoacoustic effect.

Standard of care surgical excision

Intervention Type PROCEDURE

Single cell photoacoustic microscopy

Intervention Type DEVICE

Interventions

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Functional photoacoustic microscopy

-Hybrid imaging technique that detects absorbed diffusive protons ultrasonically through the photoacoustic effect.

Intervention Type DEVICE

Standard of care surgical excision

Intervention Type PROCEDURE

Single cell photoacoustic microscopy

Intervention Type DEVICE

Other Intervention Names

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fPAM Single cell PAM

Eligibility Criteria

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Inclusion Criteria

Outcome Measure #1 and #2

* Healthy individuals with pigmented lesions or a partially biopsied melanoma whose treatment plan includes excision
* Participants must be 18 years or older
* Participants must be able to understand and willing to sign a written informed consent document

Outcome Measures #3 and #4

* Patients with either cutaneous, visceral or brain melanoma metastases.
* Participants must be 18 years or older.
* Participants must be Eastern Cooperative Oncology Group (ECOG) status 0-3.
* Participants must be able to understand and willing to sign a written informed consent document.

Exclusion Criteria

* Minors, pregnant patients, incarcerated individuals, and individuals unable to give informed consent will be excluded from this study
* ECOG status \> 3
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Washington University School of Medicine

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Lynn Cornelius, M.D.

Role: PRINCIPAL_INVESTIGATOR

Washington University School of Medicine

Locations

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Washington University School of Medicine

St Louis, Missouri, United States

Site Status

Countries

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United States

Related Links

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http://www.siteman.wustl.edu

Alvin J. Siteman Cancer Center at Barnes-Jewish Hospital and Washington University School of Medicine

Other Identifiers

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201410125

Identifier Type: -

Identifier Source: org_study_id

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