Draft Guide on Rare Diseases with Substrate Deposition
Federal Register notice: FDA has made available a draft guidance entitled “Slowly Progressive, Low-Prevalence Rare Diseases with Substrate Deposition that Results from Single Enzyme Defects: Providing Evidence of Effectiveness for Replacement or Corrective Therapies.” The document applies only to diseases with a well-characterized pathophysiology and in which changes in substrate deposition can be readily measured in relevant tissue. To view the notice, click here.