[Anticancer therapy for symptom relief? : A systematic review of clinical trials in oncology].

BACKGROUND: When patients suffer from incurable cancer, drug-based, systemic anticancer therapy is usually used with the aim of longer survival, while minimizing toxicity and ensuring a tolerable quality of life. It is unclear to what extent and with what degree of success systemic tumor therapy can be used to specifically improve pre-existing pain and an already compromised quality of life (QoL).

METHODS: Therefore, a systematic review of oncological therapy studies (PubMed) was conducted. Only studies that identified the pain-relieving and QoL-enhancing effects of systemic anticancer therapy as the primary endpoint were selected and evaluated descriptively.

RESULTS: Of the 2229 abstracts identified using a piloted search string, only 13 studies met the inclusion criteria. Of these, 10 studies showed an improvement in QoL-parameters through the use of systemic tumor therapies.

DISCUSSION: Only a few studies focused primarily on the improvement of parameters related to quality of life-although this is the primary therapeutic goal for many patients suffering from incurable and advanced cancer. The study results encourage regular inclusion of symptom- and QoL-related data in clinical studies and to more explicitly address the potential of systemic anticancer therapy in relieving pain and other symptoms, thereby supporting the goals of palliative care.