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Spots Global Cancer Trial Database for Psychophysical Studies of Cancer Therapy Pain

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Trial Identification

Brief Title: Psychophysical Studies of Cancer Therapy Pain

Official Title: Psychophysical Studies of Cancer Therapy-Induced Pain: A Feasibility Study

Study ID: NCT00515060

Interventions

Sensory Tests

Study Description

Brief Summary: The Aim of this Study is to examine the feasibility of using quantitative sensory testing procedures, widely applied to the experimental study of sensory processing in humans both with and without various pain syndromes, to now characterize the psychophysical properties of neuropathic pain that has developed as a consequence of cancer therapy. Skin punch biopsies will be performed in patients with chemotherapy-induced pain to determine whether the impairment of nerve function is due to actual retraction or loss of innervation to the skin in areas affected by sensory disturbance.

Detailed Description: Study Participation: Participants will be contacted either before their initiation of chemotherapy or following their referral to pain management service for neuropathic cancer treatment-related pain. The sensory tests will take about 1 hour to complete. These tests will seek to find the threshold (a measure of sensitivity) at which you perceive stimuli, such as touch, coolness, warmth, hot/cold feeling and pinprick. You will be asked to rate the intensity of each of these stimuli that you perceive to be painful. You will also be asked to rate the intensity of stimuli that are at a fixed intensity above the pain threshold for most people. Your skin temperature using a radiometer, a scan of your fingers and/or toes, grooved peg board, a timed task to place pegs in slots, and pain scale rating will be collected. Each part of the sensory test are optional and will be collected when possible. You may either be tested at repeated intervals throughout your chemotherapy or at later follow-up dates to check the length of symptoms. Length of Study: Your participation will be complete once you have completed all the sensory testing. Healthy Controls: Study Participation: If you agree to take part in this study, you will take part in sensory tests. The sensory tests will take about 1 hour to complete. These tests will seek to find the threshold (a measure of sensitivity) at which you perceive stimuli, such as touch, coolness, warmth, hot/cold feeling and pinprick. You will be asked to rate the intensity of each of these stimuli that you perceive to be painful. You will also be asked to rate how severe the stimuli that are above the level considered painful by most people. Your skin temperature using a radiometer, a scan of your fingers and/or toes, grooved peg board, a timed task to place pegs in slots, and pain scale rating will be collected. Each part of the sensory test are optional and will be collected when possible. A skin biopsy will also be performed. If you are taking anticoagulants (blood thinners), you may be asked to stop taking them for several days, before the procedure, due to the risk of bleeding. For the skin punch biopsy, the skin is numbed with lidocaine and cleaned with betadine and an alcohol swab. Once the skin is anesthetized (numb), a small amount of skin will be collected using a sterile 3 mm punch tool (knife). After removal of the skin, the area where you were tested will be wiped with a sterile gauze, and antibiotic ointment will be applied. Then, it will be covered with a band aid. You will be given a small supply of antibiotic ointment and band aids. You will be asked to clean the skin with soap and water twice each day and to apply the ointment and band aid. Researchers will study the skin sample and compare it to skin samples from cancer patients, so that they can try to better understand the cause of pain that occurs because of cancer therapy. Length of Study: Your participation will be complete once you have completed the sensory testing and skin biopsy.

Eligibility

Minimum Age: 18 Years

Eligible Ages: ADULT, OLDER_ADULT

Sex: ALL

Healthy Volunteers: No

Locations

University of Texas MD Anderson Cancer Center, Houston, Texas, United States

Contact Details

Name: Patrick M. Dougherty, PhD

Affiliation: M.D. Anderson Cancer Center

Role: PRINCIPAL_INVESTIGATOR

Useful links and downloads for this trial

Clinicaltrials.gov

Google Search Results

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