title: Tetrahydrocannabinol (Delta 9-THC) Treatment in Chronic Central Neuropathic Pain and Fibromyalgia Patients: Results of a Multicenter Survey.
abstract: Central neuropathic pain is difficult to treat, but delta 9-Tetrahydrocannabinol (delta 9-THC) may be a promising therapeutic agent. We administered in 172 patients on average 7.5 mg delta 9-THC over 7 months. Of these, 48 patients prematurely withdrew due to side effects, insufficient analgesia, or expense of therapy. Thus, 124 patients were assessed retrospectively in a multicenter telephone survey. Reported changes in pain intensity, recorded on a numeric rating scale (NRS), Pain Disability Index (PDI), Medical Outcomes Short-Form (SF-12), Quality of Life Impairment by Pain (QLIP), Hospital Anxiety Depression Scale (HADS), and amount of concomitant pain medication were recorded. Psychometric parameters (PDI, SF-12, QLIP, HADS) and pain intensity improved significantly during delta 9-THC treatment. Opioid doses were reduced and patients perceived THC therapy as effective with tolerable side effects. About 25% of the patients, however, did not tolerate the treatment. Therapy success and tolerance can be assessed by a transient delta 9-THC titration and its maintained administration for several weeks. The present survey demonstrates its ameliorating potential for the treatment of chronic pain in central neuropathy and fibromyalgia. A supplemental delta 9-THC treatment as part of a broader pain management plan therefore may represent a promising coanalgesic therapeutic option.
authors.affiliation: Department of Anesthesiology, Intensive Care, Emergency Medicine and Pain Therapy, Kantonsspital Lucerne, 6000 Lucerne, Switzerland.
authors.forename: Janet
authors.initials: J
authors.lastname: Weber
authors.forename: Marcus
authors.initials: M
authors.lastname: Schley
authors.forename: Matthias
authors.initials: M
authors.lastname: Casutt
authors.forename: Helmut
authors.initials: H
authors.lastname: Gerber
authors.forename: Guido
authors.initials: G
authors.lastname: Schuepfer
authors.forename: Roman
authors.initials: R
authors.lastname: Rukwied
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Schleinzer
authors.forename: Michael
authors.initials: M
authors.lastname: Ueberall
authors.forename: Christoph
authors.initials: C
authors.lastname: Konrad
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