Background: Colorectal cancer (CRC) is a common cancer worldwide, with increasing numbers surviving and living with long‐term side effects from treatment. Physical exercise during or after treatment may have several beneficial effects, but knowledge of CRC patients’ reflections on exercising during adjuvant therapy is limited. The aim of this study was to explore the experiences of CRC patients participating in a supervised exercise program during adjuvant chemotherapy.Methods: This study included CRC patients participating in two intervention studies with individually tailored and supervised combinations of endurance, resistance, and balance exercises during adjuvant chemotherapy. Semi‐structured interviews performed at the beginning, during, and immediately after the intervention period from 15 participants were analyzed using thematic analysis.Results: Four main themes identified were “structuring life with cancer,” “motivation to exercise,” “training experiences,” and “effects of exercise.” Scheduled appointments gave structure to daily life and served as an external motivational factor. The individual adjustments of exercise gave a sense of security and helped improving adherence, especially when feeling depressed or fatigued. Common expectations were improvement of endurance and strength and counteracting negative effects of chemotherapy. Experienced positive effects from exercising, both mentally and physically, contributed to inner motivation and inspired continued exercising after the study period.Conclusion: This study offers important insights into CRC patients’ experiences of participating in a physical exercise program during adjuvant chemotherapy. Based on our findings, we recommend supervised and individually tailored physical exercise during adjuvant chemotherapy to this patient group.

Background: Colorectal cancer (CRC) is the third most common cancer worldwide, and a large proportion of the patients receive adjuvant oxaliplatin-based chemotherapy. Most of these experience chemotherapy-induced peripheral neuropathy (CIPN), affecting quality of life. Evidence to advise exercise to reduce CIPN is limited. The primary aim of this study was to investigate the feasibility of an exercise intervention and data collection among CRC patients during adjuvant chemotherapy. Material and methods: This non-randomized feasibility study included CRC patients admitted to adjuvant chemotherapy to an intervention consisting of supervised aerobic endurance, resistance, and balance exercises twice a week at the hospital in addition to home-based exercise once a week. A physiotherapist supervised the patients, and the intervention lasted throughout the period of adjuvant chemotherapy (12–24 weeks). Participants performed physical tests and filled in questionnaires at baseline, 3, 6, 9, and 12 months. Results and conclusion: Nineteen (63%) of 30 invited patients consented. A major barrier to recruit or consent to participation was long travel distance to the hospital. The completion rate of questionnaires and physical tests were near 100%. Seven participants dropped out, five before the intervention started. Median attendance to supervised exercise was 85%. There were no serious adverse events related to the intervention. Except for a planned higher intensity of endurance exercise, we found the intervention feasible and safe. Based on experiences in this study, some adjustments have been made for an upcoming randomized trial, including the supervised exercise taking place close to participants’ homes. Trial registration: NCT03885817, March 22, 2019, retrospectively registered.

Cancer cachexia is a complex syndrome marked by involuntary weight and muscle loss, often driven by systemic inflammation. This multicenter, longitudinal observational study investigated circulating microRNA (miRNA) profiles in patients with unresectable locally advanced or metastatic colorectal cancer, comparing those with and without cachexia and inflammation. A total of 168 patients were categorized into four groups based on cachexia and C-reactive protein (CRP) levels. Cachexia was defined using the 2011 consensus criteria, incorporating weight loss, low BMI, and sarcopenia. Patients with both cachexia and systemic inflammation exhibited significantly distinct miRNA profiles as well as poorer overall survival (HR 2.10, p < 0.001) compared to patients with neither condition. No significant differences were observed in patients lacking either cachexia or inflammation or both. Inflammatory cachexia emerged as a biologically distinct entity, with 82 differentially expressed miRNAs. The miR-320-family, miR-6087, miR-4488, miR-29a-3p, miR-194-5p, and miR-10a-5p were most altered, several of which are linked to muscle mass, metabolism, lipid, and protein synthesis. These findings highlight the pivotal role of systemic inflammation in cancer cachexia and support its inclusion in diagnostic criteria. Moreover, circulating miRNAs may serve as promising biomarkers for identifying cachexia in cancer patients.

Purpose: The primary aim was to evaluate changes in health-related quality of life (HRQoL) in a real-life population among younger (< 70 years) and older patients with metastatic colorectal cancer (mCRC) the first year of palliative chemotherapy. The secondary aims were to assess the impact of chemo-break on HRQoL and to report overall survival (OS). Methods: Patients with newly diagnosis of mCRC, ≥ 18 years and scheduled for first line palliative chemotherapy, were included in this multicentre longitudinal observational study. The European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire Core 30 (0-100) was filled in at baseline and every second month, and >20 points change was considered to be of a large clinical magnitude. Treatments, patient- and tumour characteristics were prospectively registered. Results: Totally 214 patients were included, and 146 were alive after one year. Four months after start of treatment, 40% reported large deteriorations in fatigue and 25% in physical functioning. Changes in global Qol, physical- and role functioning, fatigue, pain, nausea and vomiting were not significantly different between the age groups and reached baseline levels after one year. Patients on chemo-break reported significant improvements in several HRQoL domains. Median OS was 17.5 months [95% CI 14.4-20.5] with no difference between younger and older patients. Conclusion: Elderlypatients did not experience more deterioration in HRQoL than younger during the first year of palliative chemotherapy. Measures to mitigate the deterioration in fatigue and physical functioning observed during the first months of palliative treatment are warranted. Trial registration: NCT02395224 , March 23, 2015, retrospectively registered.