Cluster-randomized trial of early palliative care for patients with metastatic cancer.

Abstract

9003 Background: Patients with metastatic cancer have compromised quality of life (QOL), which tends to worsen towards the end of life. We conducted a cluster-randomized trial of early versus routine palliative care in patients with metastatic cancer, to assess impact on QOL, symptom control and satisfaction with care. Methods: Twenty-four medical oncology clinics were randomized, stratified by tumour site (4 lung clinics, 8 gastrointestinal, 4 genito-urinary, 6 breast, 2 gynecological), to intervention and follow-up (at least monthly) by a palliative care team, or to routine cancer care. Eligible patients had ECOG performance status 0-2 and a clinical prognosis of 6 months to 2 years. Patients completed measures of QOL (FACIT-Sp, including physical, social, emotional, functional and spiritual well-being; range 0-156, with higher scores indicating better QOL), symptom severity (Edmonton Symptom Assessment System; range 0-90, with higher scores indicating worse symptom severity), and satisfaction with care (FAMCARE-P16; score range 16-80) at baseline and monthly for 4 months. The primary outcome was the change in FACIT-Sp at 3 months. The planned sample size was 225 patients per arm, assuming 80% power and a 2-sided significance level of 0.05. Results: From December 2006 to September 2010, 461 patients completed baseline measures (228 intervention, 233 control); 442 patients completed at least one follow-up assessment (mean patients/cluster 18.8±11.6 control, 18.1±12.6 intervention). At 3 months, patients in the intervention group had marginally improved QOL (mean change in intervention vs. control, 1.6±14.5 vs. -2.0±13.6, p=0.07) but not symptom severity (0.1±16.9 vs. 2.1±13.9, p=0.34). At 4 months the change in QOL was more marked (2.5±15.5 vs. -4.0±14.2, p=0.008) and symptom severity was marginally better (-1.3±16.0 vs. 3.2±13.9, p=0.05). Improvement in satisfaction with care was evident at one month (p=0.001) and remained significant at both 3 months (2.3±9.1 vs.-1.8±8.2, p=0.001) and 4 months (3.7±8.6 vs. -2.4±8.3, p<0.001). Conclusions: In patients with metastatic cancer, early palliative care intervention immediately improved satisfaction with care, while QOL and symptom control improved later.