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  • Title: [Post marketing surveillance study with an analgesic (transdermal buprenorphine patch) in patients with moderate to severe chronic pain].
    Author: Tschirner M, Ritzdorf I, Brünjes R.
    Journal: MMW Fortschr Med; 2008 Sep 18; 150 Suppl 3():142-8. PubMed ID: 19025217.
    Abstract:
    AIM: To obtain information on the efficacy, tolerability and safetyofa transdermal buprenorphine patch (Transtec PRO) in patients with moderate to severe chronic pain. In addition it should be evaluated to what extent the two fixed patch change days per weekare simplifyingthe therapy. METHODS: In this prospective multi-center post marketing surveillance study patients with chronic cancer and non-cancer pain were treated with transdermal buprenorphine for up to eight weeks. The evaluation included pain intensity, the dosage of the applied analgesics and additional therapies, the renal function (by serum creatinine) and adverse events. RESULTS: 3654 patients were treated for a mean of 50.4 days. Using the NRS-11 the mean pain intensity decreased from 6.3 at the time when patients were switched to the transdermal buprenorphine patch to 2.6 at the last treatment evaluation. The matrix patch was safe and well tolerated also in patients with advanced renal insufficiency. Adverse events were reported in 6.7% of the patients. 89.3% of the physicians quoted to prefer transdermal buprenorphine with the two fixed patch change days per week compared to the pre-treatment. CONCLUSION: The buprenorphine-containing matrix patch was effective and well tolerated in patients with moderate to severe chronic cancer and noncancer pain. From the physicians view the two fixed patch change days per week facilitate the guidance of therapy. In patients with advanced renal insufficiency a dose adjustment is not necessary.
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