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      • Why Clinical Trials Leaving Behind...
      Explainers

      Why Clinical Trials Leaving Behind Women, Patients Of Colour Is A Problem

      Despite the many biological differences between people, chances are that if two people walk into a doctor’s office with the same symptoms, they are going to get roughly the same treatment.

      By - The Conversation |
      Published -  12 Feb 2023 2:30 PM IST
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      Clinical Trials

      Daniel Merino, The Conversation and Nehal El-Hadi, The Conversation

      Its a great day when you find a piece of clothing that fits perfectly. A good shirt, the right pair of shoes or a well-cut dress is comfortable, looks nice and feels like it was made just for you. Now imagine a world where every shirt was the same size, every shoe was the same design and there weren’t even differences between the cut of men’s and women’s clothing. Getting dressed in the morning would be clunky, and clothes would be uncomfortable. In other words, one size does not fit all.

      Yet, this lack of bespoke options is more or less the reality of medicine today. Despite the many biological differences between people of different genders, races, ages and life histories, chances are that if two people walk into a doctor’s office with the same symptoms, they are going to get roughly the same treatment. As you can imagine, a whole range of treatments – from drugs to testing – could be much more effective if they were designed to work with many different kinds of bodies, not just some abstract, generic human.

      In this episode of The Conversation Weekly podcast, we speak to three researchers who are looking at ways to make medicine better suited to you. It starts with simply making sure that clinical trial participants look like the actual population of patients a drug is meant to treat. And as we explore in this episode, in the future, precision medicine could help each person get medical care that is tailored to their own biology, just like a custom shirt.

      In 1977, the U.S. Food and Drug Administration released a set of policy guidelines that explicitly banned “women of childbearing age” from participating in clinical trials of new drugs. Though done out of a fear of causing birth defects, the result was that for more than a decade, new drugs were going to market with little information about how they might affect women. Due to systemic biases, research has found that people of color are routinely underrepresented in clinical trials today, too. For the most part, medical research has been done on healthy, young and middle-aged men of European descent.

      This is a problem in the U.S, according to Jennifer Miller, a bioethicist at Yale University. “If you’re not included in the trial, this raises questions about whether the drug’s safety and efficacy information applies to patients like you,” she says.

      In recent years, a number of researchers across the U.S. – like Julia Liu, a professor of medicine at Morehouse School of Medicine – have been trying to figure out ways to improve the diversity of clinical trial participants. Part of the problem, Liu explains, stems from a myth within medicine that Black people don’t like to participate in medical research due to the history of abuses the U.S. medical system has inflicted on African Americans, like the infamous Tuskegee Experiment. But when Liu began running her own trials on a new prostate cancer test at a hospital that serves a majority-African American population, she found quite the opposite.

      “It turned out that just about everyone I asked said, ‘I would love to do that,’” explains Liu. “Half of the eligible patients agreed.” Black patients were just as eager to participate in research as white patients, and according to Liu, a big reason for lack of diversity in clinical trials is that they are mostly run out research hospitals in wealthier, whiter cities, not out of hospitals with diverse patients.

      According to Miller’s research, only 4% of trials in recent years used a representative population, but she is optimistic. Women are now much better represented in trials, and with regard to equal racial representation, “that 4% does tell us is that it’s possible to get this right.”

      Efforts like those of Liu and Miller are similar to how companies make shirts in different sizes to better fit different bodies. Once researchers do this work, health care providers can choose which drugs are likely to work better and have fewer risks for different patients based on their individual demographics.

      Better representation is a start, but anyone who has been lucky enough to get custom-made clothing knows just how well a shirt can really fit. This is the idea behind precision medicine. According to Keith Yamamoto, who directs the precision medicine center at the University of California, San Francisco, in the U.S., in the near future it may be possible to “achieve an understanding of health and disease to the extent that we could give advice to Dan Merino, not just people like Dan.”

      This approach to medicine would incorporate basic biology, a person’s individual genetics and life history and the wealth of all existing medical research – precision medicine is an information and computation problem. To work, it needs good data – the representative data missing from clinical trials. As Yamamoto said, “Precision medicine will fail if we don’t address those issues in a head-on way.”

      Listen to the full episode of The Conversation Weekly to find out more.

      This episode of The Conversation Weekly was produced by Katie Flood. It was written by Katie Flood and Daniel Merino. Sound design is by Eloise Stevens, and the theme music is by Neeta Sarl.

      You can find us on Twitter @TC_Audio, on Instagram at @theconversationdotcom or via email. You can also sign up for The Conversation’s free emails here. A transcript of this episode will be available soon. The Conversation



      Daniel Merino, Associate Science Editor & Co-Host of The Conversation Weekly Podcast, The Conversation and Nehal El-Hadi, Science + Technology Editor & Co-Host of The Conversation Weekly Podcast, The Conversation

      This article is republished from The Conversation under a Creative Commons license. Read the original article.

      Tags

      Racismclinical trials
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