S5 - E12 - MASH Drug Development: What Failures Taught Us About Success

Surfing the MASH Tsunami

In this conversation, Sven Francque and William Alazawi join Jörn Schattenberg, Louise Campbell, and Roger Green to review papers co-authored by Sven in 2023 and Jörn in 2020 to discuss what failure has taught us about future MASH drug development.
00:00:00 - Surf's Up: Season 5 Episode 12
Roger comments briefly on Stephen Harrison's passing and explains why this episode will be more sedate than usual.
00:01:45 - Introduction
Opening comments from panelists.
00:02:28 - Groundbreakers
Each panelist shares one piece of good news from the previous week (NOTE: This was recorded before Stephen's death.)
00:05:10 - Sven Francque on the State of the Graveyard in 2023
Sven starts by noting how different the world is now than when he co-authored this paper in 2023. He goes on to describe three key issues in successful trials that are as relevant now as when the episode was written.
00:10:59 - Efficacy endpoint challenges
The group discusses an array of challenges: that fibrosis regressions is a high bar, that patient heterogeneity presents a dilemma for trial recruitment, and that NAS score presents its own challenges.
00:18:29 - Thinking more broadly about metabolic values
Louise suggests that in addition to stabilizing MASH, endpoints might look at related metabolic diseases that poor liver health can affect. The group considers whether placebo rates can provide guidance and reconsiders the regression and response rate issues, noting the differences between RCT patients and those in usual clinical practice.
00:28:05 - Lessons from 2020 Graveyard article
Roger asks what we have learned since 2020. Jörn points to improved consistency in reading biopsy results and greater diligence in analyzing pre-clinical data before rushing into larger late-stage trials.
00:31:49 - Implications for metabolic agents on MASH therapies
Roger returns to the issue of complex drug effects, noting a recent tirzepatide Phase 3 trial on dual agonist's effect on obstructive sleep apnea. Louise notes that apnea correlates highly with SLD. Louise and Will discuss the importance of educating more physician specialties about liver health. Will discusses a presentation he made to an academic session on MASH at the Diabetes UK conference the previous week and noted that it was well-attended.
00:36:05 - Looking ahead
Roger asks what insights investors and others might take from this discussion. To Jörn, (i) we now know how to get a drug approved, and (ii) drugs in development today may be potent enough to overcome issues that challenged earlier agents. Sven adds that in future years, the use of incretin double-agonists and triple-agonists will change the nature of therapy.
00:42:23 - Wrap-up and closing question
Louise asks whether we are thinking broadly enough about older agents in MASH, using a recent study on low-dose aspirin (S5 - E11.) . Jörn and Roger each raise a practical challenge for such a trial.
After a brief digression, Roger asks his closing question: how will having a drug approved affect the conduct of trials going forward. Answers vary and present a complex picture. you'll have to listen to learn
00:51:45 - Question of the Week
The question asks for the greatest hurdle left to overcome that will improve the percent of MASH agents achieving approval and, separately, speed approval times.
00:52:14 - Back-end report
This report includes Roger's usual weekly comment on Ukraine and Israel, followed by a tribute to Stephen Harrison.
This episode was recorded the day before Stephen Harrison's untimely passing. His influence on this entire podcast was massive. Three years after he ended his co-hosting stint, there are at least two references to his research, insights, or what we called "Stephenisms" during our first anniversary episode.