 This study evaluated the effectiveness of a gamified good clinical practice, GCP, training program. The study found that the GCP Kaizen game was an effective way to provide mandatory GCP training for clinical research professionals. The game had a high Kronbacher's Alpha score, indicating that it was reliable and accurate. Additionally, the game had a high level of player satisfaction, suggesting that it was an enjoyable and engaging way to learn about GCP. This article was authored by Carolyn T. Jones, Penelope Jester, Jennifer A. Croker, and others.