A stem cell researcher at UC Davis is taking a dim view of the likelihood of development of a stem cell therapy for Covid-19, declaring that efforts in the area amount to little more than throwing spaghetti against a wall.
The bottom line in the article by Paul Knoepfler is:
"There is buzz out there that some kind of stem cells or other cells will help with COVID-19. The reality is that that’s probably not going to happen....A whole range of people and firms are somewhat exaggerating and, in a few cases, outright hyping the odds of success. That is harming patients and the cell medicine field."
Knoepler's somewhat lengthy remarks appeared on his blog, The Niche, two days ago.
They drew a comment on the blog from a member of governing of the state stem cell agency, which has allocated $5 million to help in the fight against the virus. Francisco Prieto, a Sacramento physician, said,
"Thanks for, as usual, injecting a little thoughtful perspective. There has been a great deal of breathless hype and general agita around everything having to do with COVID-19. Count me as one of those hopeful that something will 'stick to the wall,', but I won’t hold my breath. I would love sometime to sit down and talk about science (and tomatoes!) although I suppose that may have to wait until this pandemic and my time on the board have ended."
Knoepfler's comments come as the stem cell agency, known officially as the California Institute for Regenerative Medicine(CIRM), is scheduled to meet this morning to consider 12 applications for Covid-19 funding. Only two out of 12 were approved earlier by the agency's anonymous reviewers, who meet behind closed doors. The approved applications total $300,000. The agency has previously awarded $1 million in its Covid-19 round.
Asked yesterday whether his remarks applied to the two approved applications, Knoepfler said,
"No, but it does apply to a number of the not-recommended-for-funding ones."
The two applications involve small molecule drugs. The agency is permitted to finance research other than stem cells if it is a vital research opportunity. That provision -- some might call it a loophole -- also persists in the proposed ballot initiative that would provide CIRM with an additional $5.5 billion.
Knoepfler is not alone in his skepticism about stem cell possibilities related to Covid-19. Another California stem cell researcher privately told this writer recently that the CIRM Covid-19 round was "ridiculous." And early in April a Texas researcher also expressed skepticism in an account on Knoepfler's blog. On the other hand, a couple of comments on Knoepfler's piece this week took issue with his position.
The California researcher covered a lot of ground, ranging from the science to the PR. Here are some excerpts.
"Part of the problem here at least in the US and probably in many other countries is that regulatory bodies like the FDA have dropped the bar so low for IND clearance (or equivalent abroad) for COVID-19 INDs that it incentivizes various teams to try just about anything for the novel coronavirus. Of course, the stem cell and cellular medicine field isn’t the only one having such a low bar from the FDA for COVID-19, but it’s problematic all around.
"The FDA is likely under enormous political pressure to quickly clear INDs for COVID-19 trials, but it should do its best to only clear things that actually have a logical premise and a foundation of solid, even if early data. Note that Celularity was able to get Rudy Giuliani to plug what it was doing and shortly thereafter the FDA cleared their IND."
"The news media also sometimes don’t quite know how to handle the cellular medicine approach to COVID-19. I’ve seen many good stories but then some others just take interviewees’ statements at face value or even hype things further."
"What’s wrong with throwing a whole bunch of stem cell therapies at COVID-19 and just hoping something sticks?
"If the logic just isn’t there to start with then you are giving people false hope. You’re also setting yourself up to try to squeeze something hopeful out of the data once you get it, which is a road to potential big trouble. Your firm may also find itself hyping things. In addition, you’re wasting resources that could go somewhere else like to another clinical trial that makes more sense. For some other things like grant writing, the throw-the-spaghetti-on-the-wall approach can be effective."
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