Résumé : Although communication skills training programs have been recommended to reduce physicians' burnout, few studies have investigated their efficacy. This study assessed the impact of two training programs on cancer physicians' burnout. Especially, it identified some variables leading to burnout in order to develop effective interventions. Burnout was assessed with the Maslach Burnout Inventory. No statistically significant impact of training programs on burnout was observed. The amount of clinical workload and the overuse of some facilitative communication skills were associated with cancer physicians' burnout. The content of such programs must be redefined to reduce burnout.