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Skin CancerNCT00526032

Melanoma Detection by Oblique-Incidence Optical Spectroscopy

An observational study of Skin Cancer, run by M.D. Anderson Cancer Center at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Primary Objectives: To establish a statistically significant database: With Spectroscopic Oblique-Incidence Reflectometry (OIR) experimental system, we will obtain OIR spatio-spectral images of 1,000 human skin non-melanocytic and melanocytic lesions that, based on clinical diagnosis, are routinely biopsied and… Read more about this study

Who is it for?
Any age
Conditions the study is for
Skin Cancer
What is being tested?
OIR Imaging
Type of treatment
Surgery or procedure
How many people
490 participants
Where
1 siteUnited States
Study dates
Sep 2006to Jan 2012
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages Any age
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Study population: Participants having lesions on the skin that may be cancerous.

Who may be able to join

  • Patients of any age, male or female, who are having a skin exam and are found to have a suspicious skin lesion on examination of their skin
  • Patients who agree to participate and sign the informed consent

Who cannot join

  • Patients who do not have a suspicious skin lesion
  • Patients who have not signed the informed consent and have agreed to participate

Trial locations and contacts

1 site in 1 country.

United States1 site
  • UT MD Anderson Cancer Center

    Houston, Texas, 77030

Other trials in United States

About this study

Primary Objectives:

  • To establish a statistically significant database: With Spectroscopic Oblique-Incidence Reflectometry (OIR) experimental system, we will obtain OIR spatio-spectral images of 1,000 human skin non-melanocytic and melanocytic lesions that, based on clinical diagnosis, are routinely biopsied and submitted for histopathologic diagnosis and of the adjacent normal skin for self-referencing. The experimental database will contain demographic information, clinical diagnoses, clinical images, OIR images, histopathologic diagnoses, and morphometric data on the lesions.
  • To develop and validate a diagnostic algorithm:
Read more
  1. Classification: A subset (~50%) of OIR images collected will be used to complete the development of state-of-the-art image processing algorithms to extract robustly effective diagnostic features.
  2. Blind Testing and Evaluation: The algorithms established will be evaluated and validated in a prospective blind-test fashion using the complementary subset of the database that was not involved in designing the classifier. The sensitivity and specificity of the classification system will be evaluated based on the receiver-operating-characteristic (ROC) curve.
  • To identify the pathophysiologic parameters responsible for the diagnostic optical features: The anatomic and physiologic sources of the diagnostic optical signatures will be identified by comparative analyses using the OIR images, microscopic histomorphometric techniques and theoretical modeling to test the following hypotheses:
  1. The calculated differences in hemoglobin oxygen saturation.
  2. Comparisons of the calculated size distributions of skin scattering centers with histologic and morphometric analyses of various cellular and tissue components of the skin lesions.
  3. The relative densities and distributions of the different anatomic and physiologic diagnostic features within the interrogation volumes are important diagnostic factors in OIR.
Read the detailed description

The OIR imaging probe is designed to reflect light in a special way in order to take pictures of pigmented skin.

As part of your standard of care, your physician will check all skin lesions that may possibly be cancerous or pre-cancerous. Your physician will also check any non-cancerous lesions that are being removed for cosmetic reasons, such as warts and freckles.

If you agree to take part in this study, the study doctor will decide which lesions will be biopsied, as well as which lesions are eligible to be imaged. Pictures of the lesions (as well as healthy tissue nearby) will first be taken using a digital camera. The imaging probe and the area of the skin to be imaged will be cleaned with alcohol. After the imaging probe is placed over the lesion, a drop of baby oil will be applied to the skin. The imaging probe will then be lowered into contact with the skin, and the study staff will begin imaging. Twenty (20) images from 4 different positions will be taken per lesion.

Care will be taken to make sure that you cannot be identified from these images. For example, the study staff will avoid taking pictures of the face unless there are lesions there. After each lesion is imaged, the imaging device will be taken away and the skin surface cleaned. The entire imaging procedure, including preparation time, will take about 5 minutes per lesion.

Any hair on or around your lesions will be shaved or trimmed, if necessary. After all of the imaging is over, your lesion(s) will be biopsied. Your study doctor will decide which lesions require this kind of treatment as part of your standard care. Depending on what the study doctor decides, you will have either saucerization biopsies or excisional biopsies. A saucerization biopsy removes the entire lesion by cutting under it in a "scoop-like" manner. An excisional biopsy "cuts away" the entire lesion along with part of the surrounding skin.

A pathologist will receive your biopsied tissue and perform routine tests on the tissue. The test results will be available to the study doctor. Depending on whether the results are negative or positive, you may be informed of the results, as the biopsies are standard of care.

The images of your skin will be used for research to try to make the imaging probe more effective.

If you end your participation in this study early, your photographs and information will be removed from the researchers' database at that time. However, a record of your participation will remain in the database.

After all of the imaged lesions are biopsied, your participation in this study will be over.

This is an investigational study. The OIR imaging probe has not been approved by the FDA. Up to 1,000 patients will take part in this study. All will be enrolled at M. D. Anderson.

Conditions
Skin Cancer
Being tested
OIR Imaging
Keywords
Skin Cancer, Cancerous skin lesions, Melanoma Detection, Spectroscopic Oblique-Incidence Reflectometry, OIR Imaging Probe
Medical subject headings
Skin Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • OIR ImagingProcedure or surgery

    Also called imaging probe

    Images from 4 different positions will be taken per lesion. The entire imaging procedure will take about 5 minutes per lesion.

Study groups in NCT00526032
Study groupRoleWhat they receive
Spectroscopic Oblique-Incidence Reflectometry (OIR)Not described
Receives: Procedure: OIR Imaging

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Test OIR diagnostic medical tool (imaging probe) designed for early detection of skin cancers

    Observational study where patients getting skin biopsies of suspicious pigmented lesions were asked if their moles could be imaged with incidence optical spectroscopy. The light that was reflected back out was analyzed and hypothesized to differ from normal skin.

    Measured: 4 Years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted6 Sep 2007 (estimated)
  2. Study startSep 2006
  3. Primary completionJan 2012
  4. Study completionJan 2012

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case only
Time perspective
Prospective
Enrolment
490 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00526032
Sponsor's protocol ID
2006-0564
Status last verified
Jan 2012
First submitted
5 Sep 2007
Last updated
31 Jan 2012
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

An observational study of Skin Cancer, run by M.D. Anderson Cancer Center at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 31 Jan 2012. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Test OIR diagnostic medical tool (imaging probe) designed for early detection of skin cancers (time frame: 4 Years). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 31 Jan 2012.

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