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(单词翻译:双击或拖选)
SUSAN DAVIS, HOST:
And we finish the hour with this weekend's Long Listen. Precision treatments for cancer are hot right now. But one young cancer doctor is pushing back against some of the hype through scientific articles and on social media. NPR science correspondent Richard Harris met up with him recently at a big cancer conference in Chicago, where the doctors squared off in a debate about precision medicine.
RICHARD HARRIS, BYLINE1: Soon after I meet Vinay Prasad, we stroll past one of the many glitzy displays that the pharmaceutical2 companies erect3 to generate buzz about their products.
VINAY PRASAD: The carpet is so plush in many of these exhibits, you could twist your ankle in it. But this is actually a really gorgeous display. You would win any science fair with a booth like this. You would just crush it. It's bathed in purple light - incredible. Oh, hey. How are you? Good to see you. Good to see you.
HARRIS: A colleague comes up and, after asking me not to quote her on this touchy4 subject, both thanks Prasad for raising important issues in the field but also implores5 him not to get so overheated. It's not as bad as you seem to make it, she argues. And she reels off a list of precision-targeted drugs that help people with melanoma, lung cancer and other diseases.
PRASAD: I use those drugs. There are some good drugs. No one said there's no good drugs. The question is, let's be honest. The truth is 8 percent of people benefit from these drugs. Of the 8 percent that get these drugs, 50 percent have tumor6 shrinkage. 50 percent don't.
HARRIS: And tumor shrinkage doesn't mean cure. The problem, in his eyes, is that the field has gotten so enthusiastic about these drugs that they aren't waiting for actual science to distinguish between the times when they are useful and where they are a very expensive, wasted effort.
PRASAD: A lot of people want to push it to the treatment side. They want to get Medicare to pay for it. They want to get the drugs paid for off label because they don't want to shoulder the cost on the industry side. And that's the root of what bothers me about this.
HARRIS: People who buy health insurance and taxpayers7 are funding a massive, uncontrolled experiment with these drugs. Nobody's even collecting the data most of the time to find out what might be useful. Prasad, a 35-year-old oncologist who treats patients at the Oregon Health and Science University, says when he was in medical school, he assumed he would spend his career as a community doctor, treating people with cancer. But then he discovered how much of medical practice was based on traditions, rather than actual science.
PRASAD: Even the most respected, charismatic and thoughtful experts often are incorrect.
HARRIS: The more he learned about what's called evidence-based medicine, the more captivated he became.
PRASAD: I found it harder to just observe things that troubled me and not study them. And at some point, I made the decision - the conscious decision - that if it troubles me enough, I want to look at it kind of and study it and try to say something about it. And maybe somebody else will carry the torch and actually fix that problem someday.
HARRIS: He started out publishing analyses in the scientific literature about bad assumptions and bad practices he encountered. His notoriety really took off when he started opining on Twitter. Today, he has more than 20,000 followers8. And he has punched out nearly 30,000 tweets. His pointed9 commentary sometimes gets him tagged as a troublemaker10.
UNIDENTIFIED PERSON: Good afternoon. I'd like to welcome you to the 2018 session.
HARRIS: And the sessions and meetings like this are ripe targets. We settle back into seats in the cavernous meeting room where thousands of doctors have gathered to hear the big talks at the American Society of Clinical Oncology conference. The screen during the warm-up presentation flashes random11 tweets about the meeting, including one of Prasad's. It's a bingo card that features buzzwords surrounding advances in cancer treatment.
PRASAD: The words that are displayed are unprecedented12, personalized, microbiome, precision, inflection point, breakthrough, silo, big data...
HARRIS: ...Among others.
PRASAD: I guess it has almost 100 retweets now.
HARRIS: He actually wrote a scientific paper about the overuse of superlatives in scientific presentations and news coverage13. He found plenty of uses of the terms game-changer, breakthrough, miracle, cure or home run.
PRASAD: But what really got me was 14 percent of the drugs - the superlative was used based only on mouse or laboratory results. And they'd never given it to a human being.
HARRIS: We lower our voices when the talks begin. Prasad joins the Twitter conversation about the session while keeping an ear tuned14 to the presentation.
UNIDENTIFIED PERSON: ...Was to develop a paradigm15 of biomarker-directed chemotherapy.
PRASAD: They're winning my bingo. Did you hear all those words?
HARRIS: Prasad retweeted some sharp critiques of the talks but also tweeted praise for one panelist who added some important caveats16 to a study that had just been presented. The next day, we meet again at Prasad's main event, the debate over the value of precision medicine.
RICHARD SCHILSKY: OK. Good morning, everyone.
HARRIS: Dr. Richard Schilsky, the oncology society's chief medical officer, steps up to referee17 the face-off between Prasad and Vanderbilt University oncologist Jeremy Warner.
JEREMY WARNER: So the first thing I have to say is that I'm the underdog.
HARRIS: Warner flashes a cartoon with two dogs, his face plastered onto one on the ground and Prasad's face spliced18 onto the animal looming19 above. A cloud of Twitter birds represents Prasad's army of followers. The so-called debate about this multibillion dollar enterprise was civil. Afterwards, Warner reflects on their considerable points of agreement. Warner disagreed, though, about how to accommodate patients' desires for these new medicines before the careful studies show whether they will actually work for their particular type of disease.
WARNER: Yeah. Saying that someone should just be on a clinical trial - I mean, it sounds easy. But it's actually not easy at all.
HARRIS: And Schilsky, the moderator, found he was in considerable agreement with Prasad as well.
SCHILSKY: I enjoyed his remarks very much. I mean, you know, he's a bit of a gadfly. He's a bit of a provocateur. But, frankly20, he's taking a very hard and objective look at a very complex area. And, you know, he's calling it out. He's saying, you know, it's, you know - it's what's behind the curtain. And, you know, let's celebrate what really works. And let's look hard at what doesn't. And let's try to develop the evidence that we need to make important decisions for patients.
HARRIS: Plenty of people aren't so accommodating, particularly on Twitter, Prasad notes.
PRASAD: I think it's unfortunate that I'm thought of as a professional troublemaker because the work we do - we really try to find those instances where the evidence and the narrative21 are divergent and try to ask ourselves, what can we do to bring those two closer together?
HARRIS: Is this good for your career, or is this bad for your career?
PRASAD: (Laughter) To be honest with you, I don't know the answer. I guess I would say I wish I didn't - as a young person, I don't want to have to be the person to be doing all this work. I wish there were senior people who would do this work. Senior people are not doing this work.
HARRIS: The point in the end is not to be cynical22 about science, he says, but to help this critical field do science better. Richard Harris, NPR News.
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1 byline | |
n.署名;v.署名 | |
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2 pharmaceutical | |
adj.药学的,药物的;药用的,药剂师的 | |
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3 erect | |
n./v.树立,建立,使竖立;adj.直立的,垂直的 | |
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4 touchy | |
adj.易怒的;棘手的 | |
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5 implores | |
恳求或乞求(某人)( implore的第三人称单数 ) | |
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6 tumor | |
n.(肿)瘤,肿块(英)tumour | |
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7 taxpayers | |
纳税人,纳税的机构( taxpayer的名词复数 ) | |
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8 followers | |
追随者( follower的名词复数 ); 用户; 契据的附面; 从动件 | |
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9 pointed | |
adj.尖的,直截了当的 | |
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10 troublemaker | |
n.惹是生非者,闹事者,捣乱者 | |
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11 random | |
adj.随机的;任意的;n.偶然的(或随便的)行动 | |
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12 unprecedented | |
adj.无前例的,新奇的 | |
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13 coverage | |
n.报导,保险范围,保险额,范围,覆盖 | |
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14 tuned | |
adj.调谐的,已调谐的v.调音( tune的过去式和过去分词 );调整;(给收音机、电视等)调谐;使协调 | |
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15 paradigm | |
n.例子,模范,词形变化表 | |
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16 caveats | |
警告 | |
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17 referee | |
n.裁判员.仲裁人,代表人,鉴定人 | |
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18 spliced | |
adj.(针织品)加固的n.叠接v.绞接( splice的过去式和过去分词 );捻接(两段绳子);胶接;粘接(胶片、磁带等) | |
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19 looming | |
n.上现蜃景(光通过低层大气发生异常折射形成的一种海市蜃楼)v.隐约出现,阴森地逼近( loom的现在分词 );隐约出现,阴森地逼近 | |
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20 frankly | |
adv.坦白地,直率地;坦率地说 | |
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21 narrative | |
n.叙述,故事;adj.叙事的,故事体的 | |
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22 cynical | |
adj.(对人性或动机)怀疑的,不信世道向善的 | |
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