title: Choosing between NSAID and arnica for topical treatment of hand osteoarthritis in a randomised, double-blind study.
abstract: The use of topical preparations for symptom relief is common in osteoarthritis. The effects of ibuprofen (5%) and arnica (50 g tincture/100 g, DER 1:20), as gel preparations in patients with radiologically confirmed and symptomatically active osteoarthritis of interphalangeal joints of hands, were evaluated in a randomised, double-blind study in 204 patients, to ascertain differences in pain relief and hand function after 21 days' treatment. Diagnosis was according to established criteria; primary endpoints were pain intensity and hand function; statistical design was as per current regulatory guidelines for testing topical preparations. There were no differences between the two groups in pain and hand function improvements, or in any secondary end points evaluated. Adverse events were reported by six patients (6.1%) on ibuprofen and by five patients (4.8%) on arnica. Our results confirm that this preparation of arnica is not inferior to ibuprofen when treating osteoarthritis of hands.
authors.affiliation: Rheumatology Clinic, 9004, St Gallen, Switzerland.
authors.forename: Reto
authors.initials: R
authors.lastname: Widrig
authors.forename: Andy
authors.initials: A
authors.lastname: Suter
authors.forename: Reinhard
authors.initials: R
authors.lastname: Saller
authors.forename: Jörg
authors.initials: J
authors.lastname: Melzer
mesh_terms: D000287:Administration, Topical; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000008:administration & dosage* / Q000009:adverse effects; D018650:Arnica; D004311:Double-Blind Method; D005384:Finger Joint; D005782:Gels; D006225:Hand; D006801:Humans; D007052:Ibuprofen / Q000008:administration & dosage* / Q000009:adverse effects; D010003:Osteoarthritis / Q000188:drug therapy*; D008517:Phytotherapy; D028321:Plant Preparations / Q000008:administration & dosage* / Q000009:adverse effects; D016896:Treatment Outcome
chemical_list: D000894:Anti-Inflammatory Agents, Non-Steroidal; D005782:Gels; D028321:Plant Preparations; D007052:Ibuprofen