The development of guidelines is of great importance for ensuring modern, quality-assured, and standardized treatment in all areas of medicine. Many studies have used outcome data to describe how access to guideline-concordant therapy improves the prognosis of tumor patients, e.g., [1‒3]. Not least for this reason, it is important to have up-to-date and readily available guidelines at hand, especially for areas of medicine with a very dynamic development of treatment options (whether these are drug-based or multimodal therapy). This also applies in particular to developments in modern oncology.

The ONKOPEDIA guidelines are a joint project of German, Swiss and Austrian specialist societies (OeGHO, SGMO, and SGH+SSH in addition to the DGHO) under the leadership of the German Society for Hematology and Oncology (DGHO). ONKOPEDIA was established in 2010 as a portal for the creation and publication of guidelines, the content of which is presented in a condensed, clear, up-to-date, and freely accessible format (www.onkopedia.com). The guidelines are, meanwhile, available in both German and English. The homepage is currently visited by an average of around 50,000 different visitors per month.

We are therefore very pleased that in future we will be able to make practice-relevant innovations “in a nutshell” from current ONKOPEDIA guidelines available to the readers of Oncology Research and Treatment in the series “ONKOPEDIA: What’s New” in loose order and in cooperation with the DGHO. In this issue, we are starting with locally advanced rectal cancer [4], certainly one of the solid tumors for which there have been fewer changes in drug therapy than in multimodal treatment and therapy concepts. We are pleased to be able to contribute to the further dissemination of these guidelines and thereby to the optimization of treatment for our patients.

The authors have no conflicts of interest to declare.

No funding was received.

Both authors, Ralf-Dieter Hofheinz and Sylvie Lorenzen, wrote and approved this editorial.

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