Photobiomodulation for Itching

This trial aims to determine if a special light device can safely reduce itching. The device uses low-level near-infrared LED light, which neither breaks the skin nor produces heat, to target itch signals in the body. The study includes two groups: one receives the actual light treatment, while the other receives a placebo (inactive treatment). Individuals who have experienced itching for more than six weeks, have no injuries in the area, and are not on photosensitizing medications might be suitable candidates for this trial. As an Early Phase 1 trial, this research focuses on understanding how the treatment works in people, offering participants a chance to be among the first to experience this innovative approach.

The trial does not specify if you need to stop taking your current medications, but if you are on antipruritic treatments (medications for itching), you must have been on a stable regimen for at least 14 days before joining the study.

Research has shown that photobiomodulation, or low-level light therapy, is generally safe for the skin. Studies have found that this therapy can help with various skin conditions by using a special light that neither cuts the skin nor produces heat. It interacts with skin and nerve pathways in a way that most people tolerate well.

For example, one study found that low-level light therapy significantly reduced itching caused by histamine, with a noticeable decrease in itchiness and related symptoms. Additionally, near-infrared light has been used in other medical settings without major safety concerns.

Researchers are excited about photobiomodulation for itching because it offers a non-invasive approach using low-level near-infrared LED light. Unlike traditional treatments for itching, which often involve topical creams or oral medications that can have side effects, this method targets affected areas directly with light energy, potentially reducing symptoms without systemic effects. This innovative mechanism of action could provide quicker relief and fewer side effects, making it a promising alternative for those seeking more natural or side-effect-free options.

Research has shown that photobiomodulation, a type of low-level light therapy, can effectively reduce itching. One study demonstrated that this treatment significantly lowered itch intensity by 13.9 points on a specific scale. The light interacts with the skin and nerves involved in the itch sensation, leading to this reduction. Photobiomodulation has also shown promise in other skin treatments, such as aiding wound healing and reducing inflammation. These early findings suggest that this therapy might relieve itching by altering the signals that cause it. Participants in this trial will receive either the Low-Level Near-Infrared LED Light Treatment or a matching placebo, where the device is placed above the skin without activation.²³⁵⁶⁷