Conditions: Pain Peripheral Neuropathy
Keywords: Pain Peripheral Neuropathy
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 125
Healthy volunteers: no

Brief summary:
The purpose of this study is to evaluate the efficacy of Sativex® compared with placebo in relieving peripheral neuropathic pain associated with allodynia.

Detailed description:
This was a six week, multicentre, double blind, randomised, placebo controlled parallel group study to evaluate the efficacy of Sativex®. Subjects with peripheral neuropathic pain characterised by allodynia, were screened to determine eligibility and entered a seven day baseline period. Subjects then returned to the centre for randomisation and dose introduction, and received either placebo or Sativex in a double blind manner for five weeks, with a follow up visit 7 to 10 days after the end of the treatment period. The primary efficacy measure was the difference in pain severity at the end of treatment, measured using a peripheral neuropathic pain 0 to 10 numerical rating scale.

Arms:
arm 1: None arm 2: None

Interventions: intervention 1: Sativex® intervention 2: Placebo
Intervention descriptions: intervention 1: containing THC (27 mg/ml):CBD (25 mg/ml), in ethanol:propylene glycol (50:50) excipients, with peppermint oil (0.05%) flavouring. Maximum permitted dose was eight actuations in any three hour period and 24 actuations (THC 65 mg: CBD 60 mg) in 24 hours intervention 2: containing peppermint oil, 0.05% (v/v), quinoline yellow, 0.005% (w/v), sunset yellow, 0.0025% (w/v), in ethanol:propylene glycol (50:50) excipient.

Protocol document: