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  • Title: Postmarketing cohort study to assess the safety profile of oral dexketoprofen trometamol for mild to moderate acute pain treatment in primary care.
    Author: Carne X, Rios J, Torres F.
    Journal: Methods Find Exp Clin Pharmacol; 2009 Oct; 31(8):533-40. PubMed ID: 19967102.
    Abstract:
    Recently, new concerns on the safety profile of nonsteroidal anti-inflammatory drugs (NSAIDs) have been raised by the European Medicines Agency (EMEA) and other regulatory authorities. The safety profile of oral dexketoprofen trometamol for the treatment of acute mild to moderate pain of different causes in actual conditions of use in the primary care setting was assessed. A prospective cohort study was designed to evaluate the tolerability of dexketoprofen compared with other commonly prescribed analgesics. Medications were given according to specifications in the summary of product characteristics. The intensity of pain was assessed at baseline and at days 1 and 7 of drug treatment using a 100-mm visual analog scale (VAS). Adverse events (AEs) were recorded. A total of 7,337 patients (median age [IQR] = 46 [33-61] years) were included in the study comparing dexketoprofen (n = 5,429), diclofenac (n = 485), ibuprofen (n = 479), paracetamol (n = 459), metamizole (n = 207), aceclofenac (n = 103), naproxen (n = 74), piroxicam (n = 69) and dexibuprofen (n = 32). The reasons for use were: musculoskeletal disorders, headache, dysmenorrhea and odontalgia. Treatment compliance was very high. Metamizole-paracetamol and dexketoprofen showed the lowest prevalence of AEs (2.7% and 3.6%, respectively), while aceclofenac-diclofenac showed the highest prevalence (8.2%) (P < 0.0001). AEs most frequently observed during NSAID treatment were those related to the gastrointestinal tract (3.5% of subjects, 84% of all AEs), followed by AEs related to the nervous system (0.4%) and skin (0.1%). Most of the reported AEs (91.3%) were of mild to moderate intensity (303 of 332) and only 3.3% of them were considered severe (11 of 332). Risks for gastrointestinal AEs were adjusted for age, gender, history of previous NSAID intake, gastroprotective drugs and reason for prescription. Taking metamizole-paracetamol as the reference group, the odds ratios (OR, 95%) were: 1.30 (0.77-2.19) for dexketoprofen, 1.57 (0.79-3.13) for ibuprofen and dexibuprofen, 2.31 (0.64-8.27) for naproxen, 2.63 (0.85-8.15) for piroxicam and 3.37 (1.87-6.06) for aceclofenac-diclofenac. These results confirm the safety of oral treatment with dexketoprofen in patients with acute pain of various etiologies observed in previous studies and support the use of dexketoprofen as a first-line drug for the approved therapeutic indications.
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