Capsaicin Nanoparticle in Patient With Painful Diabetic Neuropathy

Study of Topical Preparation of Capsaicin Nanoparticle in Patient With Painful Diabetic Neuropathy

The objectives of this study are to determine efficacy and safety of 0.75% topical capsaicin nanoparticle preparation versus placebo in patient with painful diabetic neuropathy.

Painful diabetic neuropathy is the most common cause of neuropathic pain. 0.075% topical capsaicin has been used to treat the pain. Because of high concentration, conventional capsaicin topical preparation causing burning sensation and required several time of applications per day.

The nanoparticle of capsaicin topical preparation was developed with expectation of remaining efficacy, minimizing burning sensation and improving convenience of use.

Inclusion Criteria:

• History of type 2 Diabetes mellitus
• Peripheral neuropathy
• Stabilized on pain medication for at least one month
• No previous invasive intervention for pain relief

Exclusion Criteria:

• Local wound or any skin abnormality in the applicable area
• Allergic to capsaicin
• Refuse to participate or give consent
• Has other significant disease or receive medication that may worsen neuropathy