Background: The National Cancer Center Institute for Cancer Control has trained regional palliative care coordinators to disseminate personnel promoting collaboration between cancer hospitals and regional institutions. We examined the effectiveness of the training. Methods: A questionnaire survey was conducted in February 2022 among facilities participating in the training sessions from 2016 to 2021. Results: One-hundred sixteen facilities responded. The results were classified as ‘positive change (78%)’ and ‘negative change (0%)’. Regarding ‘factors inhibiting the smooth transition of terminal cancer patients from hospital to home,’ ‘patients’ social background (e.g., living alone, old age, etc.) interferes with the transition to home care (88%)’ and ‘patients’ anxiety about home care (83%)’ were the most common factors. Conclusion: Nearly 80% of participants reported positive changes, indicating that the training has had a certain effect. With regard to inhibiting factors, we plan to consider how training should be conducted so that it can address the individual issues in each region.