Beyond Henrietta Lacks: How the Law Has Denied Every American Ownership Rights to Their Own Cells
The common perception is that Henrietta Lacks was a victim of poverty and racism when in 1951 doctors took samples of her cervical cancer without her knowledge or permission and turned them into the world's first immortalized cell line, which they called HeLa. The cell line became a workhorse of biomedical research and facilitated the creation of medical treatments and cures worth untold billions of dollars. Neither Lacks nor her family ever received a penny of those riches.
But racism and poverty is not to blame for Lacks' exploitation—the reality is even worse. In fact all patients, then and now, regardless of social or economic status, have absolutely no right to cells that are taken from their bodies. Some have called this biological slavery.
How We Got Here
The case that established this legal precedent is Moore v. Regents of the University of California.
John Moore was diagnosed with hairy-cell leukemia in 1976 and his spleen was removed as part of standard treatment at the UCLA Medical Center. On initial examination his physician, David W. Golde, had discovered some unusual qualities to Moore's cells and made plans prior to the surgery to have the tissue saved for research rather than discarded as waste. That research began almost immediately.
"On both sides of the case, legal experts and cultural observers cautioned that ownership of a human body was the first step on the slippery slope to 'bioslavery.'"
Even after Moore moved to Seattle, Golde kept bringing him back to Los Angeles to collect additional samples of blood and tissue, saying it was part of his treatment. When Moore asked if the work could be done in Seattle, he was told no. Golde's charade even went so far as claiming to find a low-income subsidy to pay for Moore's flights and put him up in a ritzy hotel to get him to return to Los Angeles, while paying for those out of his own pocket.
Moore became suspicious when he was asked to sign new consent forms giving up all rights to his biological samples and he hired an attorney to look into the matter. It turned out that Golde had been lying to his patient all along; he had been collecting samples unnecessary to Moore's treatment and had turned them into a cell line that he and UCLA had patented and already collected millions of dollars in compensation. The market for the cell lines was estimated at $3 billion by 1990.
Moore felt he had been taken advantage of and filed suit to claim a share of the money that had been made off of his body. "On both sides of the case, legal experts and cultural observers cautioned that ownership of a human body was the first step on the slippery slope to 'bioslavery,'" wrote Priscilla Wald, a professor at Duke University whose career has focused on issues of medicine and culture. "Moore could be viewed as asking to commodify his own body part or be seen as the victim of the theft of his most private and inalienable information."
The case bounced around different levels of the court system with conflicting verdicts for nearly six years until the California Supreme Court ruled on July 9, 1990 that Moore had no legal rights to cells and tissue once they were removed from his body.
The court made a utilitarian argument that the cells had no value until scientists manipulated them in the lab. And it would be too burdensome for researchers to track individual donations and subsequent cell lines to assure that they had been ethically gathered and used. It would impinge on the free sharing of materials between scientists, slow research, and harm the public good that arose from such research.
"In effect, what Moore is asking us to do is impose a tort duty on scientists to investigate the consensual pedigree of each human cell sample used in research," the majority wrote. In other words, researchers don't need to ask any questions about the materials they are using.
One member of the court did not see it that way. In his dissent, Stanley Mosk raised the specter of slavery that "arises wherever scientists or industrialists claim, as defendants have here, the right to appropriate and exploit a patient's tissue for their sole economic benefit—the right, in other words, to freely mine or harvest valuable physical properties of the patient's body. … This is particularly true when, as here, the parties are not in equal bargaining positions."
Mosk also cited the appeals court decision that the majority overturned: "If this science has become for profit, then we fail to see any justification for excluding the patient from participation in those profits."
But the majority bought the arguments that Golde, UCLA, and the nascent biotechnology industry in California had made in amici briefs filed throughout the legal proceedings. The road was now cleared for them to develop products worth billions without having to worry about or share with the persons who provided the raw materials upon which their research was based.
Critical Views
Biomedical research requires a continuous and ever-growing supply of human materials for the foundation of its ongoing work. If an increasing number of patients come to feel as John Moore did, that the system is ripping them off, then they become much less likely to consent to use of their materials in future research.
Some legal and ethical scholars say that donors should be able to limit the types of research allowed for their tissues and researchers should be monitored to assure compliance with those agreements. For example, today it is commonplace for companies to certify that their clothing is not made by child labor, their coffee is grown under fair trade conditions, that food labeled kosher is properly handled. Should we ask any less of our pharmaceuticals than that the donors whose cells made such products possible have been treated honestly and fairly, and share in the financial bounty that comes from such drugs?
Protection of individual rights is a hallmark of the American legal system, says Lisa Ikemoto, a law professor at the University of California Davis. "Putting the needs of a generalized public over the interests of a few often rests on devaluation of the humanity of the few," she writes in a reimagined version of the Moore decision that upholds Moore's property claims to his excised cells. The commentary is in a chapter of a forthcoming book in the Feminist Judgment series, where authors may only use legal precedent in effect at the time of the original decision.
"Why is the law willing to confer property rights upon some while denying the same rights to others?" asks Radhika Rao, a professor at the University of California, Hastings College of the Law. "The researchers who invest intellectual capital and the companies and universities that invest financial capital are permitted to reap profits from human research, so why not those who provide the human capital in the form of their own bodies?" It might be seen as a kind of sweat equity where cash strapped patients make a valuable in kind contribution to the enterprise.
The Moore court also made a big deal about inhibiting the free exchange of samples between scientists. That has become much less the situation over the more than three decades since the decision was handed down. Ironically, this decision, as well as other laws and regulations, have since strengthened the power of patents in biomedicine and by doing so have increased secrecy and limited sharing.
"Although the research community theoretically endorses the sharing of research, in reality sharing is commonly compromised by the aggressive pursuit and defense of patents and by the use of licensing fees that hinder collaboration and development," Robert D. Truog, Harvard Medical School ethicist and colleagues wrote in 2012 in the journal Science. "We believe that measures are required to ensure that patients not bear all of the altruistic burden of promoting medical research."
Additionally, the increased complexity of research and the need for exacting standardization of materials has given rise to an industry that supplies certified chemical reagents, cell lines, and whole animals bred to have specific genetic traits to meet research needs. This has been more efficient for research and has helped to ensure that results from one lab can be reproduced in another.
The Court's rationale of fostering collaboration and free exchange of materials between researchers also has been undercut by the changing structure of that research. Big pharma has shrunk the size of its own research labs and over the last decade has worked out cooperative agreements with major research universities where the companies contribute to the research budget and in return have first dibs on any findings (and sometimes a share of patent rights) that come out of those university labs. It has had a chilling effect on the exchange of materials between universities.
Perhaps tracking cell line donors and use restrictions on those donations might have been burdensome to researchers when Moore was being litigated. Some labs probably still kept their cell line records on 3x5 index cards, computers were primarily expensive room-size behemoths with limited capacity, the internet barely existed, and there was no cloud storage.
But that was the dawn of a new technological age and standards have changed. Now cell lines are kept in state-of-the-art sub zero storage units, tagged with the source, type of tissue, date gathered and often other information. Adding a few more data fields and contacting the donor if and when appropriate does not seem likely to disrupt the research process, as the court asserted.
Forging the Future
"U.S. universities are awarded almost 3,000 patents each year. They earn more than $2 billion each year from patent royalties. Sharing a modest portion of these profits is a novel method for creating a greater sense of fairness in research relationships that we think is worth exploring," wrote Mark Yarborough, a bioethicist at the University of California Davis Medical School, and colleagues. That was penned nearly a decade ago and those numbers have only grown.
The Michigan BioTrust for Health might serve as a useful model in tackling some of these issues. Dried blood spots have been collected from all newborns for half a century to be tested for certain genetic diseases, but controversy arose when the huge archive of dried spots was used for other research projects. As a result, the state created a nonprofit organization to in essence become a biobank and manage access to these spots only for specific purposes, and also to share any revenue that might arise from that research.
"If there can be no property in a whole living person, does it stand to reason that there can be no property in any part of a living person? If there were, can it be said that this could equate to some sort of 'biological slavery'?" Irish ethicist Asim A. Sheikh wrote several years ago. "Any amount of effort spent pondering the issue of 'ownership' in human biological materials with existing law leaves more questions than answers."
Perhaps the biggest question will arise when -- not if but when -- it becomes possible to clone a human being. Would a human clone be a legal person or the property of those who created it? Current legal precedent points to it being the latter.
Today, October 4, is the 70th anniversary of Henrietta Lacks' death from cancer. Over those decades her immortalized cells have helped make possible miraculous advances in medicine and have had a role in generating billions of dollars in profits. Surviving family members have spoken many times about seeking a share of those profits in the name of social justice; they intend to file lawsuits today. Such cases will succeed or fail on their own merits. But regardless of their specific outcomes, one can hope that they spark a larger public discussion of the role of patients in the biomedical research enterprise and lead to establishing a legal and financial claim for their contributions toward the next generation of biomedical research.
Making Sense of Science features interviews with leading medical and scientific experts about the latest developments and the big ethical and societal questions they raise. This monthly podcast is hosted by journalist Kira Peikoff, founding editor of the award-winning science outlet Leaps.org.
Episode 1: "COVID-19 Vaccines and Our Progress Toward Normalcy"
Bioethicist Arthur Caplan of NYU shares his thoughts on when we will build herd immunity, how enthusiastic to be about the J&J vaccine, predictions for vaccine mandates in the coming months, what should happen with kids and schools, whether you can hug your grandparents after they get vaccinated, and more.
Transcript:
KIRA: Hi, and welcome to our new podcast 'Making Sense of Science', the show that features interviews with leading experts in health and science about the latest developments and the big ethical questions. I'm your host Kira Peikoff, the editor of leaps.org. And today, we're going to talk about the Covid-19 vaccines. I'm honored that my first guest is Dr. Art Caplan of NYU, one of the world's leading bio-ethicists. Art, thanks so much for joining us today.
DR. CAPLAN: Thank you so much for having me.
KIRA: So the big topic right now is the new J&J vaccine, which is likely to be given to millions of Americans in the coming weeks. It only requires one-shot, it can be stored in refrigerators for several months. It has fewer side-effects and most importantly, it is extremely effective at the big things, preventing hospitalizations and deaths. Though not as effective as Pfizer and Moderna in preventing moderate cases, especially potentially in older adults with underlying conditions. So Art, what's your take overall, on how enthusiastic Americans should be about this vaccine?
DR. CAPLAN: I'm usually enthusiastic. The more weapons, the better. This vaccine, while maybe, slightly less efficacious than the Moderna and the Pfizer ones, is easier to make, is easier to ship. It's one-shot. You know, here there's already been problems of getting people to come back in for their second shots. I would say 5... 7% of people don't show up even though you remind them and you nag them, they don't come back. So a one-shot option is great. A one-shot option that's easy to, if you will, brew up in your rural pharmacy without having to have special instructions is great. And I think it's gonna really facilitate herd-immunity, meaning, we'll see millions and millions and millions of doses of the Janssen vaccine out there as an option, I'm gonna say, summer.
KIRA: Great. And to be fair, it's worth mentioning that the J&J vaccine was tested in clinical trials after variants began to circulate, and it's only one-shot instead of two, like the other vaccines, and it gets more effective over time. So is it really fair to directly compare its efficacy to the mRNA vaccines?
DR. CAPLAN: Well, you know, people are gonna do that. And one issue that'll come up ethically is people are gonna say, "Can I choose my vaccine? I want the most efficacious one. I want the name brand that I trust. I don't want the new platform. I like Janssen's 'cause it's an older, more established way to make vaccines or whatever." Who knows what cuckoo-cockamamie reasons they might have. To me, you take what you can get, it'll be great. It's way above what we normally would expect, those 95% success rates are off the charts. Getting something that's 70% effective, it's perfectly wonderful. I wish we had flu shots that were 70% effective.
And the other thing to keep in mind is we're gonna see more mutations, we're gonna see more strains. That's just a reality of viruses. So they'll mutate, more strains will appear, we can't just say, "Oh my goodness. There's a South-African one or the California one or the UK one. We better... I don't know, do something different." We're just gonna have to basically resign ourselves, I think, to boosters. So right now, take the vaccine. I'm almost tempted to say, "Shut up and take the vaccine. Don't worry about choosing."
Just get what you can get. If you live in a rural community and all they have is Janssen, take it. If you're in another country and all they ship to you is Janssen, take it. And then we'll worry about the next round of virus mutations, if you will, when we get to the boosters. I'm more concerned that these things aren't gonna last more than a year or two than I am that they're not gonna pick up every mutation.
KIRA: So on that note, shipping to rural places or low-income countries that lack the ultra-cold freezers that you need for the super effective mRNA vaccines, the Janssen vaccine seems like a really great option, but are we going to encounter a potential conflict of people saying, "Well, there's "poor or rich vaccines," and one is slightly less effective than the other." And so are we gonna disenfranchise people and undermine their actual willingness to take the vaccine?
DR. CAPLAN: Well, it's interesting. I think the first problem is gonna be, "I have vaccine and I don't have any vaccine," between rich and poor countries. Look, the poor countries are screaming to get vaccine supply sent to them. I think, for example, Ghana received recently 600 million doses of AstraZeneca vaccine. It was freed up by South Africa, which decided they didn't wanna use it 'cause they thought there was "a better vaccine" coming. So even among the poorer nations or the developing nations, some vaccines are getting typed as the not-as-good or the less-desirable... We've already started to see it.
But for the most part, the rich countries are gonna try and vaccinate to herd immunity, you can argue about the ethics of whether that's right, before they start sharing. And I think we'll have haves and have-nots, herd immunity produced in the rich countries, Japan, North America, Europe, by the end of the year anyway. And still some countries floundering around saying, "I didn't get anything," and what are you gonna do?
KIRA: And I know you said to people, which is a very memorable quote, "just shut up and take the vaccine, whatever you can get, whatever is available to you now, do it." But inevitably, as you mentioned, some people are going to say, "Well, I just wanna wait to get the best one possible." When will people have a choice in vaccines, do you think?
DR. CAPLAN: I don't think you'll see that till next year. I think we're gonna see distribution according to where the supply chains are that the vaccine manufacturers use. So if I use McKesson and they ship to the Northeast, and that's where my vaccine goes, that's what's available there. If I'm contracted to Walmart and they buy Janssen, that's what you're gonna see at the big box store. I don't think you're really gonna get too much in the way of choice until next year, when then they're gonna say they ship three different kinds of vaccine, and I can offer you one dose or two dose... One of them lasts a year, one of them lasts 18 months. I don't think we're gonna have the informed choice until next year.
KIRA: Okay. And right now the steep demand is outstripping the supply, and there's been a lot of pressure put on the vaccine makers to ramp up as quickly as possible. Of course, they say that they're doing that and the government is pressuring them to do that, but when do you think we'll cross over to the point where vaccine hesitancy is a bigger issue than vaccine demand?
DR. CAPLAN: Yeah. So this is a really interesting issue. I'm glad you asked me this because I think it's got good foresight. The big ethics fight now is scarcity and who goes first, and the ethicists, including me, are having a fine old time arguing about healthcare workers versus policemen versus people who work for UPS versus somebody who's working at the drug store. Who's more important? Why are they more important? Who's essential?
Actually, I think most of that is nonsense, because what we've learned is that you can't do much in the way of micro-allocation, the system strains, and it doesn't work. You've gotta use some pretty broad categories like over 65, still breathing and working, and a kid. The kid will go last, 'cause we don't have the data, everybody else should get in line and the over 65s should probably be first 'cause they're at high risk. We can't do this. We stink at the micro-management of vaccine supply, plus it encourages cheating. So everybody's out there with vaccine hunters, vaccine tourism, bribing, lying, dressing up like a grandmother to get a vaccine. My favorite one was some rich people in Vancouver flew up to the Yukon and pretended to be Inuit aboriginal people to get a vaccine. That will all pass.
We'll have enough vaccine by the summer, more or less, that the issue will then be, "How are we gonna get to herd immunity or at least maximal immunity, knowing that we don't have data on kids?" People under 18, I think are something like 20% of our population. That means the best you could do is 80%. The other population still could be passing the virus, kids here or Europe or wherever. Well, the military refusal rate that I just saw was 30% saying no. I've heard nursing home staff rates, nursing attendants, nursing aids up at 40% to 50% saying no. So these are huge refusal rates, people are nervous about how it works, the vaccine. Some of them are like, "Well Art you take it. If you're still alive in six months, then maybe I'll take it, but I wanna see that it really works and it's safe." And other people say, "We don't wanna be exploited. We don't trust the government, whatever, to offer us these vaccines."
I'm gonna answer that was a long-winded way of saying we're gonna see some mandates, we're gonna see some coercions start to show up in the vaccine supply, because I think, for example, the military. The day one of these license gets... Excuse me, one of these vaccines get licensed, right now they're on an emergency approval, collect data for three or four more months, get the FDA to formally license the thing. I'd say between five minutes and 10 minutes, the military will be mandating. They have no interest in your objection, they have no interest in your choice, they know what the mission is. It's traditionally, we're gonna get you as healthy as we can to fight a war.
The fact that you say, "Gee, I might die." They kind of say, "Yeah, we noticed that, but that's in the military culture. We fight wars and do stuff like that." So they'll be mandating, I think, very rapidly. And I think healthcare workers will. I think most hospitals are gonna say 50% refusal rate among this nursing group? Forget it. We can't risk that. Nursing homes have been devastated by COVID. They're not gonna have aids out there unvaccinated. The only thing holding up the mandates right now is that we don't have full licensure. We have emergency use approvals, and that's good.
But it's a little tough to mandate without full license. The day we get it, three months, four months, we're gonna start to see mandates. And I'll make one more prediction, as long as I'm in a crystal ball mode. It won't be the government at that point that says, you have to be vaccinated. It'll be private business, 'cause they're gonna say, "You know what? Come on my cruise ship, 'cause everybody who works here is vaccinated." "Come on into my bar, everybody who works here is vaccinated." They're gonna start to use it as an advertising marketing lure. "It's safe here. Come on in." So I think they'll say, "If you wanna work on an airline as a flight attendant, you get vaccinated. We have vaccine proof. You can show it on your iPhone, on your whatever, you have a card that you did it." And so I think we'll see many businesses moving to vaccinate so that they can bring their customers back in.
KIRA: So private businesses, that's one thing, because people do not have to patronize those places if they don't wanna get vaccinated. But of course, this is gonna open up a can of worms with schools. Public schools, if they mandate teacher vaccines and you have to send your kid to school and you have to go to work at a school. What happens then?
DR. CAPLAN: Well, schools are gonna be at the end of the line. That's where we have the least data. So I don't think we're gonna see school mandates on kids, maybe not till next year. But we already have school mandates on kids. They were the first group to feel the force of mandates, because it turns out that measles and mumps and whooping cough are easy to get at school, sneezing and coughing on one another. Some states have added flu shots. Many states, California, Maine, New York have actually eliminated exemptions. The only way out for those kids is if they have a health reason. They're not even allowing religious or so-called philosophical or personal choice exemptions. COVID vaccines will just line up right next to those things.
Teachers will demand it, the pressure will be there. We'll have a lot of information by next year on safety. I'm even gonna say people are gonna be less tolerant of non-vaccinators. Now it's sort of like, "Wow. Yeah, I guess." But this time next year, if you haven't vaccinated, people are gonna come to your house and board it up and make you stay inside.
KIRA: Well, given how much we're so dependent on these vaccines to get us back to a regular life, I can understand the sentiment. What is your take on the big controversy right now, just going back towards the present day a little bit more on having kids in schools. Is that something you support before all the teachers have been vaccinated?
DR. CAPLAN: I do, but I have a problem with the definition of a teacher and a school. So by the way, some people that I know, friends of mine have said, "Well, I'm a teacher, I'm a yoga instructor. I'm a teacher, I'm an aerobics instructor. So I should get priority access to vaccination." I don't think that's what we meant by teacher. And here's the difference in schools. I live in Ridgefield, Connecticut. Up the street for me is a very fancy private elementary school. It has endless grounds, open classrooms. If there are eight kids in a class, I'll pass out. It is great. I wish I went to college there. It's a wonderful set up. Do they need to vaccinate everybody? Probably not, they're all sitting six feet apart, everybody in there is gonna mask, they have huge auditoriums. They never have to come in contact.
I've been in some other schools in the Bronx. No ventilation, no plumbing, 35 kids in a class, the teacher's 65. And you sort of think, "Boy, I'd wanna have vaccinate everybody in sight in this place because unless we re-haul the buildings and downsize the class size, people are gonna get sick in here."
They probably were getting sick anyway before COVID, but now COVID makes it worse. They're probably getting the flu or colds at nine times the rate that they were in Ridgefield, Connecticut. So my point is this, high school kids doing certain things, they can come in on a mixed schedule three days a week, two days a week, do their thing, they know how to mask. Am I worried about vaccinating there? Not too much. Elementary school kids need psychosocial development, need to learn social skills, sometimes going to schools that aren't that wonderful. Yeah, let's vaccinate them. So even though I was complaining a bit about micro-management and trying to parse out, here I think you need to do it. I think you're probably gonna say college, I don't know that you have to vaccinate there. High schools, 50/50. Elementary school, let's do them first.
KIRA: Got it. And one more question on kids before I wanna move on, there's been talk about whether it's necessary before kids are allowed to get this vaccine to have the FDA go to full approval with the full bulk of data necessary for that versus just an emergency authorization for the general population, given that kids are at so much lower risk than adults. But then of course, it'll take a lot more time, I imagine, to get the kids the vaccines. What's your take on that?
DR. CAPLAN: We historically have demanded higher levels of evidence to do anything with a kid, and I think that's gonna hold true here too. I don't think you're gonna see emergency-use authorization for people under 18. Maybe they'd cut it and say, "We'll do it 12-18," but just looking at the history of drug development, vaccine development, people are really leery of taking risks with kids and appropriately so. Kids can't even make their own decision. I can decide if I wanna take an emergency-use vaccine, if I think it's too iffy I don't take it right now. So up to me to weigh the risk-benefit. I don't think so. I think you'll see licensing required before we really get it, at least 12 and under. Let's put it there. And I'm not worried about the safety or efficacy of these things in kids. I think there's no reason, given the biological mechanisms, to think they're gonna be any different. But it's gonna be pretty tough pre-licensure to impose anything.
KIRA: And when do you think that licensure for kids under 12 could come?
DR. CAPLAN: Well, two groups of people are now being studied, pregnant women, the studies just launched. They'll probably be done sufficiently by the end of the year. Kids for full licensure, spring next year.
KIRA: Okay. And because this is a big question for a lot of women that I know and women in general who are pregnant, what would you say to them now, where we don't have the data yet on the safety, but they have to decide and they can't wait six or nine more months?
DR. CAPLAN: Vaccinate yesterday. Literally, I think the COVID virus is too dangerous, I think it's dangerous to the mom, I think it's dangerous to the fetus. It is an unknown, but boy, I would bet on the vaccine more than I would taking my chances with the virus.
KIRA: Got it. So let's pivot a little bit and talk about some of the big open questions around the vaccines that we're starting to get some early evidence about. For one thing, do they prevent transmission and not just symptomatic disease. And I think it's worth pointing out for our audience here that there is a big difference between preventing symptoms and preventing infections, as lots of asymptomatic people know. And we have a lot of new real-world evidence from Israel, from Scotland, reporting that even asymptomatic infections are greatly reduced by the Pfizer vaccine, for example. What is your take on how this new data is going to change guidance around post-vaccination behaviors?
DR. CAPLAN: Yeah. What do we got in the podcast? Seven or eight hours to go? That's a tough one. It's complicated. But trying to over-simplify a little bit. So there is a difference, and this has gotten confusing, I fear. Some vaccines prevent you from getting infected at all. It looks like the Pfizer and the Moderna fall into that category. That's great, 'cause no matter what else, it probably means you're gonna reduce transmission, 'cause if you can't be infected, I don't know how you're gonna give it to somebody else. So I'll bet that that's a transmission reduction. Looks like Johnson & Johnson, unclear. Seems to prevent bad symptoms and death but not moderate disease, and it isn't clear that it stops you from getting infected. So that may become an issue in terms of how we strategically approach when we have enough vaccine of the different types. We may wanna say, "Look, in some environments, we've gotta control spread... Nursing home. We wanna see the Moderna there. We wanna see the Pfizer there."
In other situations, we just wanna make sure you're not dead, let's get the Janssen thing out there. And that'll be great. I'll tell you... I'll give you an example from my own current existence. So I've been pretty cautious... As I said, I live in Ridgefield, Connecticut. I have a house, pretty roomy, but I haven't left it very often. I'm willing to take the chance to go shopping. I'll confess I'm even willing to take the chance wearing a mask to go to the drug store and I've had a hair-cut or two. So I've been not hyper-cautious, but cautious. I don't invite people over that I don't know where they've been, so to speak. But now I'm vaccinated, and my wife is fully vaccinated. And the other night for the first time, we went out to an indoor restaurant. Probably haven't done that in 10 months... No, I don't know, six months. But a long time...
KIRA: I hope you really enjoyed that first meal out, 'cause that's something that I dream about. Boy, where am I gonna go and what am I gonna order?
DR. CAPLAN: Yeah. We went to the fanciest restaurant in town, as a matter of fact, and they were social distancing and everybody was masked and the wait staff. But I figure, good enough for me. If the thing isn't gonna kill me, if I was just told I was gonna have a risk of being sick for three days or something, that's good enough for me. I don't wanna infect somebody else. So I'll still mask and do that, I'm not sure. But I'm absolutely ready to say, and in fact, I've scheduled two trips. We're gonna take a trip to Florida, we're gonna take a trip to North Carolina in March and April. I'm figuring even then, things will be better. But everybody's gonna have choices like that to make. It'll be really interesting. If I'm Tony Fauci or one of our big public health guys, I don't want anybody going anywhere, I'm risk-averse, until maybe 2027. I think it'll be controlled and eliminated... We'll have lots of data and everything will be great. I'm a little bit more, shall we say, individual choice-oriented, making individual risk things, like I said. As long as I'm responsible to others.
I don't wanna make anybody else sick, but if I am ready to take the chance of just being sick for a few days, and I believe the vaccines available will keep me out of the hospital and keep me out of the Morticians building. Okay, I'm ready to do it. So each one of us is gonna have to make a value decision, this is what I find interesting, about what's normal. It isn't science. It isn't medicine. It's ethics. You're gonna have to decide how much risk do you wanna take. Do you wanna be a jerk to your neighbor, if you could still have a teeny chance of infecting them? Am I willing to live in a world where COVID is around but it's kinda rare? I know kids are still transmitting, but it's not really a huge risk. That's the kind of value choice that each of us will be faced with.
KIRA: I really appreciate your emphasis on individual choice and values here and letting... Basically allowing people to make those judgments based on their circumstances for themselves. If you're not deathly afraid of getting a mild cold-type illness, then I can understand why you wanna fly or go to a restaurant, and other people might not be comfortable with any risk at all, and they're perfectly welcome to stay home.
DR. CAPLAN: Or they may say, "I'm 80, I have nine chronic diseases. A mild illness still freaks me out." Okay, I get that. I'm perfectly respectful of that. It's interesting. I think we've been used to public health messaging, and people have this attitude that at some point, Fauci or the head of the CDC, somebody's gonna show up on TV and say, "All clear, everything's over, back to normal, we've declared victory over the enemy. It's armistice day." Whatever. It isn't gonna work like that is my prediction. It's gonna be a slow creep, different people deciding, "I'm safe enough, I'm wandering out." Other people say, "No, no, not ready." Or somebody saying, "I'm pregnant. I'm staying in. I don't care what's going on. I'm not gonna take that risk." I think people will be surprised that there isn't going to be a national day of resolution or something. [chuckle]
KIRA: Right. It's more about these individual behaviors and over time, letting people decide what to do. So for example, if you had grandkids and they were not vaccinated, but you are, would you hug them, would you get close to them, how would you behave and how do you think they should behave around you?
DR. CAPLAN: So I'd be still nervous about them transmitting, but I'm also a very strong believer in my vaccine. So yes, I would hug them, and yes, I would have them come to visit. And that's probably gonna happen actually fairly soon. But their parents aren't vaccinated yet. And so I'm still nervous that maybe better not to do a lot of social mingling right now. But yeah, people have said to me, "My grandmom is 94. I don't know how long she's gonna be here. You think if I'm vaccinated it's okay to pay a visit." I'm gonna start to say, "Yeah, I get that."
KIRA: And I think one thing that's lost in these discussions of safety is also the aspect of benefits to human life and why we even live in the first place. We don't live lives of complete safety. We drive, we fly, we do things that are risky, but we take those risks, because it's worth it. So I think that should be part of the discussion overall, not just safety, period.
DR. CAPLAN: And not just saving lives. So ski slopes, there are a lot of orthopedic clinics at the bottom of big ski slopes, and sending a message like, "You can break bones here." But people say, "I wanna do it, I enjoy it." Okay, I'm not sure all the time that we should factor all of that into our pooled insurance plan, but that's a fight for another day. Nonetheless, I would... You know something, I would pay for it 'cause I like to encourage people to enjoy themselves. So I have my bad habits, they have their bad habits. I think it's sort of a wash in a certain way. But more to your point, I think if you look out there and say, there are some areas where we don't let you choose. You must put your kid in a car seat. A kid can't make a decision, the thing is very effective, really saves their lives, they should have a life ahead of them, and we're gonna force it. And I'm all for that.
In other instances, I might go into the restaurant. I think it's part of the general, "Am I gonna drive a car, am I gonna cross a busy street... " As you said, there are many things I have to do where I have to think about the risk-benefit. I may make a lousy calculation and underestimate what it means to get in my car and drive in terms of risk relative to getting hit by lightening or some other risks, but that's a little bit more for me.
KIRA: So that's a really thought-provoking conversation, but I wanna switch for a minute to another question mark around the vaccines besides transmission, is the long-term studies of their effects on the immune system. And one thing that I've noticed some experts are concerned about is the fact that a lot of the people in the placebo groups have dropped out of the trials and gotten the vaccine because ethically you can't withhold the vaccinations from these volunteers, but at the same time, that could be hurting our ability to compare the vaccine's long-term effects against people who haven't had the vaccine for a long time. So how significant is this issue in your mind?
DR. CAPLAN: Big. Some people actually proposed that we not let them drop out, we not tell the subjects in these big trials of vaccines if they were in the placebo group. Can't do that. It's clearly unethical... Achieved consensus on that decades ago, with various studies where the researcher said, "We don't have to tell the subjects that there's a treatment." Tuskegee did that, for example, the horrible study in the early, late '60s, early '70s, where they didn't tell people there was a cure and kept the study going of venereal disease, but there have been many others since. We already know you gotta give them the option. Some people may stay in anyway, but not enough to allow the study to really have integrity. So I think current studies are likely to fall apart and we won't get answers in the way we're used to with randomized trials to the long-term effects or even to the how long does it last question.
We need to build a system that can follow people. We can't rely on them being in an observed clinical trial. We have to start to say, "You register, we're gonna check on you every year to see how you're doing." That's gotta be done. And one other provocative idea, I pushed it long ago, challenge studies. Deliberately infect a small group of people, hopefully healthy people that choose to do it with mild COVID and then see what the vaccine does in them and then get an answer faster if you study them over time, they volunteered knowingly to get exposed this way. I think you're gonna see some challenge studies done particularly to compare vaccines. There are still more vaccines coming, maybe some of them will last longer, cheaper, safer, I don't know. The only way you're gonna study the next round of vaccines is in a challenge study. You're never getting anybody to sign up to be in a placebo control randomized trial.
KIRA: So that was actually my next question, that the UK just approved the first ever challenge study to infect the volunteers on purpose with the virus. Now, the UK has often been much more progressive in doing medical research than the US. Do you think the US will ever get to that point or are we just gonna rely on other countries to do that for us?
DR. CAPLAN: I think we won't get there. We're so conservative, so litigation conscious. People are freaked out that if somebody got sick and died in a challenge study, it would bankrupt the sponsor. I think the UK is on the right path, but I don't really think we're gonna follow.
KIRA: Okay, well, I hope that they can do the work that we really need. And I'm grateful that there are other countries that are more permissive of risk-taking and doing the controversial studies that are required.
DR. CAPLAN: Ironically, if you don't do the challenge studies, the only other way you're gonna get to do big-scale randomized placebo trials is in the poorest countries that can't get anything. And that makes it an awful lot like exploitation, taking advantage, as opposed to choice. But that's where you'd go, you'd say, "Oh, I got this new vaccine, I'll test it out in Sierra Leone and they don't have anything anyway. So better that half of them get the vaccine than not." And I still think the challenge study makes more ethic sense.
KIRA: Yeah, absolutely. That would really be a shame to be put in that position instead of just allowing people to decide. We let people sign up for the army where they might die. What's the ethical difference with signing up for a potentially dangerous study, but if you're young and healthy, the risk is low?
DR. CAPLAN: By the way, the risk from COVID to say, 18 to 35-year-olds, who's who you'd be looking at, is about the same as donating a kidney, which we also allow all the time.
KIRA: Right, right. Great point. Before we finish up here, I just wanna quickly touch on, of course, the big elephant in the room, which we all have to deal with, unfortunately, which is the variants. So I wanna talk about where we stand. I've heard some vaccine experts recently say, like Paul Offit, for example, has said he doesn't expect a fourth surge due to this, but others are more cautious and take the flip side saying, "This is the calm before the storm. We're about to see another huge explosion." California has recently reported a new strain as accounts for maybe potentially 50% of cases now, and it could be 90% by the end of March. But we're seeing such big declines in the numbers in hospitalizations, in cases. So what should people make of these conflicting messages?
DR. CAPLAN: There's an attitude in medicine that many doctors take toward things like incipient or new prostate cancer, sometimes toward breast cancer, or at least lumps. It's called watchful waiting. You pay attention. You watch what's going on. But you don't do anything right away. I would still get vaccinated, I would still take what I could get. I still believe that it's likely that these vaccines are gonna provide some protection, if not against infection, then at least against the worst symptoms and the worst chances of dying because they're really gonna boost up the basic immune system, which should be able to start to fight against viruses.
That said, could we wind up with some virulent new strain that evades the current vaccine platforms? Yes. Is it likely? I don't think so. But what it does mean is get ready to get boosters because the response to new strains that have been a result of viral mutations is you gotta adjust your vaccine. That's what we'll do. I hope it doesn't send us back into quarantine and isolation and distancing and all the rest of it as our only control. I'm hoping that the manufacturers can roll out boosters more quickly than the first round of vaccines.
KIRA: And the FDA has just said that the vaccine developers will not need to start over with new clinical trials to these boosters. So that will greatly expedite the process. And do you think that's the right call?
DR. CAPLAN: Yes, absolutely. You're not changing the fundamental nature of the vaccine platform, you're just tweaking, if you will, which chemistry responds to the virus. So yeah, I do.
KIRA: And one question then that necessarily everyone is gonna wonder is, "Well, if I got the J&J vaccine, can I get an mRNA booster?" Can you mix and match? Is that gonna work for your immune system?
DR. CAPLAN: Yeah. We don't have any idea. And I wouldn't do that right away. I know some countries are thinking about that to get more, if you will, use out of a limited supply. I'd say wait three months and do it the right way, where the data is in evidence. I'm not worried about people getting a second shot of something different and dropping dead. I'm just worried that it won't work. [chuckle] So I'm not a fan of mix and match. You can do it in some studies, by the way. You could do it in some challenge studies and get a faster answer than you would having to try and do this in 30,000 people over a year. But no, I don't think that's a good way to go. And I'm not a big fan of one-shot strategies either. I think, what we know is that the second shot really kicks your immune system into high gear and that's what you want for real protection. So I know why people say it but I wouldn't advocate for it.
KIRA: Right. And for my last question. One of our big themes this year that we'll be following all throughout the year at leaps.org is our progress towards an eventual return to life and return to normalcy. So I have to ask that question to you. Given everything that you know and that we've discussed today, when do you think our lives and society will start to look normal again, with schools, and restaurants, and businesses open, people are flying and gathering without fear, traveling, etcetera?
DR. CAPLAN: I think you're gonna see a lot of that this summer. There's gonna be enough vaccine out there, even if the epidemiologists aren't 100% happy. As I said, I think a lot of people are gonna say, "I'm happy enough, good enough for me. I'm going to sports and I'm flying, and I'm taking a vacation." And we'll be outside again. Remember we had the ability to eat outdoors and congregate less when the weather's better around the whole country, and I think that will open up Europe and the US in addition. What I'm worried about is if we had to go back in the fall to a more controlled environment, either 'cause a new strain appeared, or just because things weren't as efficacious as we hoped they'd be. But I think summer is gonna be good this year.
KIRA: Well, I hope you're right. I hope your crystal ball is working today. [chuckle]
DR. CAPLAN: [chuckle] And if it's not working right, email Kira. Don't talk to me.
KIRA: Yeah, I cannot be held liable for this. Thank you Art for a fascinating discussion. And thanks to everyone for listening. If you like this show, follow Making Sense of Science to hear new episodes coming once a month. And if you wanna give us feedback, we'd love to hear from you. Get in touch on our website, leaps.org. And until next time, thanks everyone.
Kira Peikoff was the editor-in-chief of Leaps.org from 2017 to 2021. As a journalist, her work has appeared in The New York Times, Newsweek, Nautilus, Popular Mechanics, The New York Academy of Sciences, and other outlets. She is also the author of four suspense novels that explore controversial issues arising from scientific innovation: Living Proof, No Time to Die, Die Again Tomorrow, and Mother Knows Best. Peikoff holds a B.A. in Journalism from New York University and an M.S. in Bioethics from Columbia University. She lives in New Jersey with her husband and two young sons. Follow her on Twitter @KiraPeikoff.
A Doctor Who Treated His Own Rare Disease Is Tracking COVID-19 Treatments Hiding In Plain Sight
In late March, just as the COVID-19 pandemic was ramping up in the United States, David Fajgenbaum, a physician-scientist at the University of Pennsylvania, devised a 10-day challenge for his lab: they would sift through 1,000 recently published scientific papers documenting cases of the deadly virus from around the world, pluck out the names of any drugs used in an attempt to cure patients, and track the treatments and their outcomes in a database.
Before late 2019, no one had ever had to treat this exact disease before, which meant all treatments would be trial and error. Fajgenbaum, a pioneering researcher in the field of drug repurposing—which prioritizes finding novel uses for existing drugs, rather than arduously and expensively developing new ones for each new disease—knew that physicians around the world would be embarking on an experimental journey, the scale of which would be unprecedented. His intention was to briefly document the early days of this potentially illuminating free-for-all, as a sidebar to his primary field of research on a group of lymph node disorders called Castleman disease. But now, 11 months and 29,000 scientific papers later, he and his team of 22 are still going strong.
They're running a publicly accessible database called the CORONA Project (COvid19 Registry of Off-label & New Agents) that to date tracks 400 different COVID-19 treatments that have been tried somewhere in the world, along with the frequency of their use, and the outcomes.
"There's so many drugs being used all over the place, in different ways, with different outcomes," says Fajgenbaum. "We're trying to add some order to the madness."
20,000 people have accessed the registry—other physicians and researchers, those in the pharmaceutical industry, and even curious lay people—and the data are now being shared with the U.S. Food and Drug Administration in the hopes of launching large-scale trials that would lead to approving a constellation of treatment options for COVID-19 faster than any new drugs could come online.
"What David's group has done with the CORONA Project is on a scale that I don't think has ever been seen before," says Heather Stone, a health science policy analyst at the FDA who specializes in drug repurposing. She was not involved in establishing the project, but is now working with its data. "To collect and collate that information and make it openly accessible is a massive feat, and a huge benefit to the medical community," she says.
On a Personal Mission
In the science and medical world, Fajgenbaum lives a dual existence: he is both researcher and subject, physician and patient. In July 2010, when he was a healthy and physically fit 25-year-old finishing medical school, he began living through what would become a recurring, unprovoked, and overzealous immune response that repeatedly almost killed him.
His lymph nodes were inflamed; his liver, kidneys, and bone marrow were faltering; and he was dead tired all the time. At first his doctors mistook his mysterious illness for lymphoma, but his inflamed lymph nodes were merely a red herring. A month after his initial hospitalization, pathologists at Mayo Clinic finally diagnosed him with idiopathic multicentric Castleman disease—a particularly ruthless form of a class of lymph node disorders that doesn't just attack one part of the body, but many, and has no known cause. It's a rare diagnosis within an already rare set of disorders. Only about 1,500 Americans a year receive the same diagnosis.
Without many options for treatment, Fajgenbaum underwent recurring rounds of chemotherapy. Each time, the treatment would offer temporary respite from Castleman symptoms, but bring the full spate of chemotherapy side effects. And it wasn't a sustainable treatment for the long haul. Regularly dousing a person's cells in unmitigated toxicity was about as elegant a solution to Fajgenbaum's disease as bulldozing a house in response to a toaster fire. The fire might go out (though not necessarily), but the house would be destroyed.
A swirl of exasperation and doggedness finally propelled Fajgenbaum to take on a crucial question himself: Among all of the already FDA-approved drugs on the market, was there something out there, labeled for another use, that could beat back Castleman disease and that he could tolerate long-term? After months of research, he discovered the answer: sirolimus, a drug normally prescribed to patients receiving a kidney transplant, could be used to suppress his overactive immune system with few known side effects to boot.
Fajgenbaum became hellbent on devoting his practice and research to making similar breakthroughs for others. He founded the Castleman Disease Collaborative Network, to coordinate the research of others studying this bewildering disease, and directs a laboratory consumed with studying cytokine storms—out-of-control immune responses characterized by the body's release of cytokines, proteins that the immune system secretes and uses to communicate with and direct other cells.
In the spring of 2020, when cytokine storms emerged as a hallmark of the most severe and deadly cases of COVID-19, Fajgenbaum's ears perked up. Although SARS-CoV-2 itself was novel, Fajgenbaum already had almost a decade of experience battling the most severe biological forces it brought. Only this time, he thought, it might actually be easier to pinpoint a treatment—unlike Castleman disease, which has no known cause, at least here a virus was clearly the instigator.
"Because [a drug] looks promising, we need to do a well-designed, large randomized controlled trial to really investigate whether this drug works or not ... We don't use that to say, 'You should take it.'"
Thinking Beyond COVID
The week of March 13, when the World Health Organization declared COVID-19 a pandemic, Fajgenbaum found himself hoping that someone would make the same connection and apply the research to COVID. "Then like a minute later I was like, 'Why am I hoping that someone, somewhere, either follows our footsteps, or has a similar background to us? Maybe we just need to do it," he says. And the CORONA Project was born—first as a 10-day exercise, and later as the robust, interactive tool it now is.
All of the 400 treatments in the CORONA database are examples of repurposed drugs, or off-label uses: physicians are prescribing drugs to treat COVID that have been approved for a different disease. There are no bonafide COVID treatments, only inferences. The goal for people like Fajgenbaum and Stone is to identify potential treatments for further study and eventual official approval, so that physicians can treat the disease with a playbook in hand. When it works, drug repurposing opens up a way to move quickly: A range of treatments could be available to patients within just a few years of a totally new virus entering our reality compared with the 12 - 19 years new drug development takes.
"Companies for many decades have explored the use of their products for not just a single indication but often for many indications," says Stone. "'Supplemental approvals' are all essentially examples of drug repurposing, we just didn't call it that. The challenge, I think, is to explore those opportunities more comprehensively and systematically to really try to understand the full breadth of potential activity of any drug or molecule."
The left column shows the path of a repurposed drug, and on the right is the path of a newly discovered and developed drug.
Cures Within Reach
In Fajgenbaum's primary work, promising drugs stand out easily. For a disease like Castleman, where improvement almost never occurs on its own, any improvement that follows a treatment can pretty clearly be attributed to that treatment. But Fajgenbaum says tracking COVID outcomes is less straightforward since "the vast majority of people will get better, whether they take steroids or they take Skittles." That's why the intent of the database is to identify promising treatments only to generate hypotheses and fruitful clinical trials, not to offer full-throated treatment recommendations. Within the registry, Fajgenbaum considers a drug promising if it's being used in humans, not just in lab animals, and a significant proportion of cases report patient improvement.
"It's that sort of combination of rock-solid randomized controlled trial data, plus anecdotal retrospective data, that we combine to say, 'Wow, this drug looks more promising than another,'" says Fajgenbaum. "Because it looks promising, we need to do a well-designed, large randomized controlled trial to really investigate whether this drug works or not ... We don't use that to say, 'You should take it.'"
Experts say that the search for repurposed drugs to treat COVID could have implications for rare diseases in general. Rare diseases, of which Castleman is one, affect 400 million people around the world. 95% of them don't have a tailor-made, FDA-approved drug treatment. Developing one is a lengthy and often prohibitively expensive process. If only a dozen people will benefit from and buy a drug, it's not often worth it to pharmaceutical companies to spend millions of dollars making them. On occasion when they do, however, that overhead shows up in the price tag: the top 10 most expensive drugs in the world are all for rare diseases, often making them inaccessible to patients. Identifying new clinical uses for drugs that already exist is critical for opening a trap door out of a cycle that prioritizes profits over health outcomes.
"COVID is an interesting case where it's demonstrated that when the scientific and medical community really focuses all of its efforts and talents on a single problem, a solution can be identified and in a much faster time period than has ever historically been the case," says Stone. "I certainly wish it hadn't taken a pandemic to do that, but I think it does have lessons for the future in terms of our ability to accomplish things that we might have previously not thought were possible"—for example, mainstreaming the idea of drug repurposing as a treatment tool, even long after the pandemic subsides.
A Confounding Virus
The FDA declined to comment on what drugs it was fast-tracking for trials, but Fajgenbaum says that based on the CORONA Project's data, which includes data from smaller trials that have already taken place, he feels there are three drugs that seem the most clearly and broadly promising for large-scale studies. Among them are dexamethasone, which is a steroid with anti-inflammatory effects, and baricitinib, a rheumatoid arthritis drug, both of which have enabled the sickest COVID-19 patients to bounce back by suppressing their immune systems. The third most clearly promising drug is heparin, a blood thinner, which a recent trial showed to be most helpful when administered at a full dose, more so than at a small, preventative dose. (On the flipside, Fajgenbaum says "it's a little sad" that in the database you can see hydroxychloroquine is still the most-prescribed drug being tried as a COVID treatment around the world, despite over the summer being debunked widely as an effective treatment, and continuously since then.)
One of the confounding attributes of SARS-CoV-2 is its ability to cause such a huge spectrum of outcomes. It's unlikely a silver bullet treatment will emerge under that reality, so the database also helps surface drugs that seem most promising for a specific population. Fluvoxamine, a selective serotonin reuptake inhibitor used to treat obsessive compulsive disorder, showed promise in the recovery of outpatients—those who were sick, but not severely enough to be hospitalized. Tocilizumab, which was actually developed for Castleman disease, the disease Fajgenbaum is managing, was initially written off as a COVID treatment because it failed to benefit large portions of hospitalized patients, but now seems to be effective if used on intensive care unit patients within 24 hours of admission—these are some of the sickest patients with the highest risk of dying.
Other than fluvoxamine, most of the drugs labeled as promising do skew toward targeting hospitalized patients, more than outpatients. One reason, Fajgenbaum says, is that "if you're in a hospital it's very easy to give you a drug and to track you, and there are very objective measurements as to whether you die, you progress to a ventilator, etc." Tracking outpatients is far more difficult, especially when folks have been routinely asked to stay home, quarantine, and free up hospital resources if they're experiencing only mild symptoms.
But the other reason for the skew is because COVID is very unlike most other diseases in terms of the human immune response the virus triggers. For example, if oncology treatments show some benefit to people with the highest risk of dying, then they usually work extremely well if administered in the earlier stages of a cancer diagnosis. Across many diseases, this dialing backward is a standard approach to identifying promising treatments. With COVID, all of that reasoning has proven moot.
As we've seen over the last year, COVID cases often start as asymptomatic, and remain that way for days, indicating the body is mounting an incredibly weak immune response initially. Then, between days five and 14, as if trying to make up for lost time, the immune system overcompensates by launching a major inflammatory response, which in the sickest patient can lead to the type of cytokine storms that helped Fajgenbaum realize his years of Castleman research might be useful during this public health crisis. Because of this phased response, you can't apply the same treatment logic to all cases.
"In COVID, drugs that work late tend to not work if given early, and drugs that work early tend to not work if given late," says Fajgenbaum. "Generally this … is not a commonplace thing for a virus."
"There are drugs that are literally sitting in every single hospital pharmacy in the country that, if a study shows it's effective, can be deployed that evening to patients on a massive scale."
This see-sawing necessitates tracking a constellation of drugs that might work for different stages of the disease as a patient moves from the weak immune response stage into the overzealous immune response.
"COVID is difficult, compared to other diseases, because there are so many different levels of disease severity, and recovery at different rates," says Stone, the FDA researcher. "That makes it hard to see the patterns or signals and it makes it very important to collect very, very large numbers of cases in order to really reliably identify signals."
This particular moment in the pandemic feels like a massive tipping point, or the instant a tiny pinprick of light finally appeared at the end of the tunnel: several vaccines are already here, with more on the way imminently. In the U.S., more than 65 million doses of the vaccine have been administered, and positive COVID cases are finally falling back to levels not seen since October. On the hopeful surface, it might seem a strange moment to be preparing to launch trials that will validate treatments for a virus it seems the U.S. may finally be beating back. But at best, Americans are still months away from reaching herd immunity through vaccination, and new circulating variants may threaten to upend our fragile progress.
"In the meantime, there are drugs that are literally sitting in every single hospital pharmacy in the country that, if a study shows it's effective, can be deployed that evening to patients on a massive scale. It wouldn't have to be newly produced, it wouldn't have to be shipped, it's literally there already," says Fajgenbaum. "The idea that you can save a lot of lives by finding things that are just already there I think is really compelling, given how many people are going to die over these next few months."
Even after that, not everyone can or will be vaccinated, and, as the Wall Street Journal recently reported, "The pathogen will circulate for years, or even decades, leaving society to coexist with Covid-19 much as it does with other endemic diseases like flu, measles, and HIV." Neither vaccines, personal behavior, or treatments alone is a panacea against the virus, but together they might be.
"It's important to explore all avenues in this public health emergency, and drug repurposing can continue to play a role as the pandemic continues and evolves," says Stone. "I think COVID variants in particular are a big concern at the moment, and therefore continuing to investigate new therapeutics, even as the vaccines roll out, will continue to be a priority."