• Winfried Häuser, Petra Klose, Patrick Welsch, Frank Petzke, and Monika Nothacker.
• Schmerzmedizin und Seelische Gesundheit, Medizinisches Versorgungszentrum Saarbrücken St. Johann, Großherzog-Friedrich-Straße 44-46, 66111, Saarbrücken, Deutschland. whaeuser@klinikum-saarbruecken.de.
• Schmerz. 2020 Jun 1; 34 (3): 245-278.

BackgroundThe update of the German S3 guidelines on long-term opioid therapy of chronic noncancer pain (CNCP), the LONTS (AWMF registration number 145/003), was scheduled for February 2020 due to the expiry of the validity period.MethodsThe guidelines were updated by 28 scientific societies and 2 patient self-help organizations under the coordination of the German Pain Society and the Association of the Scientific Medical Societies in Germany (AWMF).ResultsA systematic literature search was performed in the CENTRAL, MEDLINE and Scopus databases from October 2013 to December 2018. The previous meta-analyses of randomized controlled trials (RCT) of opioids in CNPC syndromes with a study duration of ≥4 weeks were updated. Levels of evidence were assigned according to the Oxford Centre for Evidence-Based Medicine version 2009 classification system. The formulation and strength of recommendations was established in a multistep formalized consensus procedure, in accordance with AWMF rules and standards. The guidelines were reviewed by four experts not involved in the development of the guidelines. The public was given the opportunity to comment on the guidelines. The guidelines were approved by the executive boards of the societies that were engaged in development of the guidelines.ConclusionThe guidelines will be published in several forms: complete and short scientific versions as well as clinical practice and patient versions.

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