Niemann-Pick disease type C, or NPC, is a rare childhood disease that gradually impairs brain function and movement. Researchers at the National Institutes of Health conduct NPC research, including clinical trials that test promising therapies.

Reproduced with permission from NIH Clinical Trials and You. NIH does not endorse or recommend any products, services, or information described or offered here by Healthline. Page last reviewed October 20, 2017.