Study Details

Testing the Diode Laser Device for People with Peripheral Neuropathic Pain

(IRB#: IRB_00139059)

Peripheral Neuropathy is a disorder of the nerves in the body that typically affects the longest peripheral nerves of the body reaching to the feet. The disorder may cause ongoing neuropathic foot pain. This study will test a device called a Diode laser. This device will be used to apply light energy to the skin on top of the foot to activate nerves in the skin that sense pain. The study will see if this testing correlates with the neuropathic pain people experience with the disorder. People with known neuropathy will have opportunities to participate in 2 studies. Study one will assess both the severity of neuropathy, and the severity and history of foot pain. This is a one day 2 to 3 hours in-person visit at the study clinic. Study two will see if change occurs in neuropathic pain from a Federal Drug Administration (FDA) approved medication called Lidocaine, and measure change in response to the laser stimulation in parallel. The medication will be a patch that is placed on the top of the foot. This second study lasts an additional 4 weeks with 4 additional brief weekly in-person study visits at the clinic.

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