What is another disease that vertex works on?

I'm curious, can you tell me more about the other disease that Vertex Pharmaceuticals is currently working on? I understand they're renowned for their research and development in the field of rare diseases, but I'm particularly interested in the specific ailment they're currently focusing their efforts on. Is there a particular condition that they've recently made significant strides in treating, or is there a new area of research they've embarked on? I'd appreciate any insight you can provide on this topic.