Capsaicin 8 % as a cutaneous patch (Qutenza™): analgesic effect on patients with peripheral neuropathic pain

Acta Neurol Belg. 2015 Sep;115(3):335-43. doi: 10.1007/s13760-014-0395-7. Epub 2014 Nov 25.

Abstract

Evaluation of the analgesic effect after a single application of the capsaicin 8 % cutaneous patch (Qutenza™) in 37 patients suffering from painful, distal symmetric polyneuropathy (PNP) for an average of 5 years. Patients ranged from 40 to 78 years of age and 22 subjects were HIV-positive. Patients were observed 4 weeks prior to 12 weeks post administration. An evaluation of the therapeutic effect of capsaicin 8 % as a dermal patch in terms of pain reduction, change of sleeping behavior and social activities was performed and statistical analysis of data was conducted using non-parametric methods. Patients were selected according to clinical criteria. Numerical rating scale (NRS 0-10) was used to inquire pain intensity and a pain score was calculated using the painDETECT(©) questionnaire Freynhagen R (Curr Med Res Opin 22:1911-1920, [2006]). A significant reduction of pain was achieved for up to 12 weeks, with a maximum after 2-4 weeks post administration. After patient education and before application of capsaicin patch, a significant reduction of three levels on the NRS was observed. Symptoms of painful PNP decreased over the period of investigation and 8 patients reported a reduction of systemic pain medication. In patients with an HIV infection, a significant extension of sleep was achieved for 2, 4 and 8 weeks after application. Thus, the application of the capsaicin 8 % patch resulted in a significant relief of neuropathic pain, a prolongation of sleep, a reduction of oral pain medication and a resumption of social activities.

Publication types

  • Clinical Trial

MeSH terms

  • Adult
  • Aged
  • Capsaicin / administration & dosage*
  • Female
  • Humans
  • Male
  • Middle Aged
  • Neuralgia / drug therapy*
  • Pain Measurement
  • Sensory System Agents / administration & dosage*
  • Transdermal Patch
  • Treatment Outcome

Substances

  • Sensory System Agents
  • Capsaicin