ABSTRACT
OBJECTIVES: The objectives of this study were to determine the efficacy and safety of Derris scandens Benth extracts in pain reduction and functional improvement in patients with knee osteoarthritis (OA). DESIGN: This was a prospective, randomized, controlled trial, single-blinded (assessor). SETTINGS: The study was conducted at the Rehabilitation Medicine Department, Siriraj Hospital. SUBJECTS: One hundred and seven (107) patients with primary OA knee who had pain score of ≥ 5 were recruited. INTERVENTIONS: Patients were randomized to receive naproxen 500 mg/day or Derris 800 mg/day for 4 weeks. OUTCOME MEASUREMENTS: Western Ontario McMaster Osteoarthritis Index (WOMAC) scores and 6-minute walking distance were the outcome measurements. RESULTS: Fifty-five (55) and 52 patients were randomized to Derris and naproxen groups, respectively. The mean differences of all WOMAC scores between 2 groups at week 4 adjusted by week 0 were within ± 1 point. The mean scores of the aforementioned outcomes at weeks 0, 2, and 4 were significantly improved compared to the baseline values. There was no difference of WOMAC scores between groups. The gastrointestinal irritation and dyspepsia were observed more often in the naproxen than in the Derris group. CONCLUSIONS: Derris scandens Benth extracts were efficacious and safe for the treatment of knee OA.
Subject(s)
Anti-Inflammatory Agents, Non-Steroidal/therapeutic use , Derris , Mobility Limitation , Osteoarthritis, Knee/drug therapy , Pain/drug therapy , Phytotherapy , Plant Extracts/therapeutic use , Aged , Anti-Inflammatory Agents, Non-Steroidal/pharmacology , Female , Humans , Knee/pathology , Male , Middle Aged , Naproxen/adverse effects , Naproxen/pharmacology , Naproxen/therapeutic use , Osteoarthritis, Knee/pathology , Pain/etiology , Plant Components, Aerial , Plant Extracts/adverse effects , Plant Extracts/pharmacology , Prospective Studies , Severity of Illness Index , Single-Blind Method , Treatment Outcome , Walking/physiologyABSTRACT
OBJECTIVE: The objective of this study was to determine the efficacy and safety of Curcuma domestica extracts in pain reduction and functional improvement in patients with knee osteoarthritis. STUDY DESIGN AND SETTING: The design and setting were a randomized controlled study at a university hospital in Bangkok, Thailand. METHODS: One-hundred and seven (107) patients with primary knee osteoarthritis (OA) with pain score of > or =5 were randomized to receive ibuprofen 800 mg per day or C. domestica extracts 2 g per day for 6 weeks. The main outcomes were improvement in pain on level walking, pain on stairs, and functions of knee assessed by time spent during 100-m walk and going up and down a flight of stairs. The adverse events were also recorded. RESULTS: Fifty-two (52) and 55 patients were randomized to C. domestica extracts and ibuprofen groups, respectively. Baseline characteristics of the patients in both groups were not different. The mean scores of the aforementioned outcomes at weeks 0, 2, 4, and 6 were significantly improved when compared with the baseline values in both groups. There was no difference in those parameters between the patients receiving ibuprofen and C. domestica extracts, except pain on stairs (p = 0.016). No significant difference of adverse events between both groups was found (33.3% versus 44.2%, p = 0.36 in C. domestica extracts and ibuprofen groups, respectively). CONCLUSIONS: C. domestica extracts seem to be similarly efficacious and safe as ibuprofen for the treatment of knee OA.
