Time frame: At baseline, at 6 months and at 1 year.
Developed by the EORTC, this self-reported questionnaire assesses the health-related quality of life of cancer patients in clinical trials.
The EORTC QLQ-C30 is a general self-report questionnaire designed to assess QoL in cancer patients. It consists of five functioning scales (physical, role, cognitive, emotional, and social), three symptom scales (fatigue, pain, nausea, and vomiting), a global QoL scale, and six single questions assessing additional symptoms commonly reported by cancer patients.
As recommended by the EORTC, the scales and single-item variables of the QLQ-C30 will be linearly transformed into a score from 0 to 100. A high score for a functioning scale and for the global QOL scale represents a better level of functioning, whereas a high score for a symptom scale or a single item scale denotes a high level of symptoms or problems.