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S3-E38.5 – From the Vault: NAIL-NIT tackles NAS Score Challenges

From February of this year, Stephen Harrison and Mazen Noureddin join Jörn Schattenberg, Louise Campbell and Roger Green to discuss the formation of the new NAIL-NIT consortium, led by Stephen and Mazen. This conversation focuses on the specific challenges inherent in the NAS scores.

Our week of “Greatest Hits” episodes from the vault continues with this conversation from the episode announcing the launch of the NAIL-NIT consortium. Stephen Harrison and Mazen Noureddin discuss the thinking behind their new consortium and its targets. In this conversation, they discuss challenges with the NAS score.

S3-E11.3 – NAIL-NIT: Challenges of the NAS Score

The early part of 2022 had several episodes discussing the increasing need to move beyond biopsy (yes, semi-quantitative, but even AI-assisted at some levels) to a future shaped by NITs. One pivotal issue that emerged regarded ballooned hepatocyte evaluation and its impact on NAS scores.

As I wrote: The first section focuses mostly on what we can and cannot learn from a NAS score, and implications of its shortcomings on the drug development process. After this, Stephen Harrison notes the complex role the liver plays in energy transfer throughout the entire metabolic process. This suggests that the effects of Fatty Liver disease vary among individual patients and, as a result, drug development and patient diagnosis and treatment should provide sufficient insight to optimize each patient’s therapy.

As the conversation closes, Mazen Noureddin is responding to a question from Louise Campbell about what we will learn about optimal testing strategy. Mazen suggests there is unlikely to be a single “winning” test but, instead, a combination of NITs probably will be necessary to answer all the questions necessary to optimize therapy.

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