I have recently seen a Kidney Specialist and she says that I probably have something called Medullary Cystic Kidney Disease Type 1 Stage 2, but we can't be sure without doing a biopsy, and I am extremely worried because she also said that the only treatment available would be a transplant within the next 5 to 6 years, is there anything else that can be done?

Summarized question: Is transplant the only solution for medullary cystic kidney disease?