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DrEricDing's profile
Eric Feigl-Ding
Eric Feigl-Ding
Eric Feigl-Ding
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@DrEricDing

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Eric Feigl-DingVerified account

@DrEricDing

Epidemiologist & health economist. Senior Fellow @FAScientists. Former 16 years @Harvard. @JohnsHopkins alum. COVID updates since Jan '20: http://nym.ag/3olszuo 

Washington DC & Virginia
fas.org/expert/eric-fe…
Joined January 2009

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    1. Eric Feigl-Ding‏Verified account @DrEricDing 27 Jul 2020

      Eric Feigl-Ding Retweeted Eric Feigl-Ding

      ⚠️DEBUNKING HYDROXYCHLOROQUINE (again)—w/ that viral HCQ video today, it’s time to bump up this thread 🧵 on the mega RECOVERY randomized trial of HCQ with 4700 people showing NO benefit for mortality, & even higher risk of ventilator+mortality. And no subgroups benefit. #COVID19https://twitter.com/DrEricDing/status/1283465624203788290 …

      Eric Feigl-Ding added,

      Eric Feigl-DingVerified account @DrEricDing
      HYDROXYCHLOROQUINE - Recovery trial results finally out - and hopefully puts nail in coffin. Out of 4700 people randomized... HCQ did NOT lower #covid19 mortality. It anything it was trending in wrong direction. Thread 🧵 https://www.medrxiv.org/content/10.1101/2020.07.15.20151852v1 … pic.twitter.com/6l85Nmz4id
      Show this thread
      898 replies 7,090 retweets 11,874 likes
      Show this thread
    2. Eric Feigl-Ding‏Verified account @DrEricDing 27 Jul 2020

      2) Trials are many fold stronger evidence than any Henry Ford retrospective analysis or case series report. Henry Ford Health system (thsr showed lower risk with HCQ) was also just one of several retrospective analyses. The other ones all showed NO BENEFIT or even HIGHER risk.

      123 replies 278 retweets 980 likes
      Show this thread
    3. Eric Feigl-Ding‏Verified account @DrEricDing 27 Jul 2020

      Eric Feigl-Ding Retweeted Eric Feigl-Ding

      3) Moreover here is another RANDOMIZED trial of hydroxychloroquine done by @boulware_dr’s group in the US published in the NEJM showing no benefit for preventing #COVID19. https://twitter.com/drericding/status/1268309620944261122?s=21 …https://twitter.com/DrEricDing/status/1268309620944261122 …

      Eric Feigl-Ding added,

      Eric Feigl-DingVerified account @DrEricDing
      ⚠️The breaking 800-person HYDROXYCHLOROQUINE trial has just been published now. No difference in prevention of #COVID19. Follow up Thread 🧵 to the earlier thread 🧵 below. https://www.nejm.org/doi/full/10.1056/NEJMoa2016638 … https://twitter.com/DrEricDing/status/1268260953184927746 … pic.twitter.com/rNcmMFVG3x
      Show this thread
      95 replies 300 retweets 907 likes
      Show this thread
    4. Eric Feigl-Ding‏Verified account @DrEricDing 27 Jul 2020

      Eric Feigl-Ding Retweeted Eric Feigl-Ding

      4) here is another earlier HCQ retrospective analysis of 1400 patients in 25 NYC hospitals. Again, no benefit for either HCQ or HCQ+azithromycin sliced 12 different ways. https://twitter.com/drericding/status/1259978756409696257?s=21 …https://twitter.com/DrEricDing/status/1259978756409696257 …

      Eric Feigl-Ding added,

      Eric Feigl-DingVerified account @DrEricDing
      ⚠️New hydroxychloroquine study (not trial): “in patients hospitalized w/ #COVID19, treatment w/ hydroxychloroquine, azithromycin, or both was not associated w/ lower in-hospital mortality.” ➡️ Sliced & diced 12 different ways: nothing showed HCQ benefit. https://jamanetwork.com/journals/jama/fullarticle/2766117 … pic.twitter.com/x6HeYg3pdE
      212 replies 293 retweets 827 likes
      Show this thread
    5. Eric Feigl-Ding‏Verified account @DrEricDing 27 Jul 2020

      Eric Feigl-Ding Retweeted

      5) I prefer if HCQ stays in the dustbin or debunked stuff. But why am I posted all these older HCQ studies? Because the HCQ misinformation video has been seen over 14 mil times already. I’m not linking it cuz it’s crap. But here is summary. https://twitter.com/kevinroose/status/1287906751069581318?s=21 … https://twitter.com/kevinroose/status/1287906751069581318 …

      Eric Feigl-Ding added,

      This Tweet is unavailable.
      63 replies 254 retweets 842 likes
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    6. Eric Feigl-Ding‏Verified account @DrEricDing 28 Jul 2020

      6) And another May study of #Hydroxychloroquine from New York City in NEJM: from 1376 patients over 22 days, there was NO association between hydroxychloroquine and intubation or death (hazard ratio, 1.04, 95% CI, 0.82 to 1.32). Results robust.https://www.nejm.org/doi/full/10.1056/NEJMoa2012410 …

      14 replies 74 retweets 223 likes
      Show this thread
    7. Eric Feigl-Ding‏Verified account @DrEricDing 28 Jul 2020

      7) And another hydroxychloroquine study in CRITICAL CARE journal- of 80 patients, was: 📌no difference in ventilator-free days at day 28 📌No diff in mortality at day 14 & day 28. 📌 no difference in viral load between day 0 and day 7. ➡️ NOTHING. https://ccforum.biomedcentral.com/articles/10.1186/s13054-020-03117-9 …pic.twitter.com/bwEqmvaVQZ

      32 replies 80 retweets 250 likes
      Show this thread
    8. Eric Feigl-Ding‏Verified account @DrEricDing 28 Jul 2020

      Eric Feigl-Ding Retweeted Eric Feigl-Ding

      8) For those just arriving here from another tweet thread, note that this trial by Boulware in NEJM was for HCQ and PREVENTION... not for hospitalized, yet still no effect. Reposting from above so bottom/mid-thread arrivers see it: https://twitter.com/drericding/status/1268309620944261122?s=21 …https://twitter.com/DrEricDing/status/1268309620944261122 …

      Eric Feigl-Ding added,

      Eric Feigl-DingVerified account @DrEricDing
      ⚠️The breaking 800-person HYDROXYCHLOROQUINE trial has just been published now. No difference in prevention of #COVID19. Follow up Thread 🧵 to the earlier thread 🧵 below. https://www.nejm.org/doi/full/10.1056/NEJMoa2016638 … https://twitter.com/DrEricDing/status/1268260953184927746 … pic.twitter.com/rNcmMFVG3x
      Show this thread
      36 replies 58 retweets 171 likes
      Show this thread
    9. Eric Feigl-Ding‏Verified account @DrEricDing 28 Jul 2020

      Eric Feigl-Ding Retweeted Antoine FLAHAULT

      9) For prevention (prophylaxis), another experiment in macaque monkeys also did not show benefit for either HCQ or HCQ+azithrymycin combo on viral load or prevention. https://twitter.com/flahault/status/1286069693439254529?s=21 …https://twitter.com/FLAHAULT/status/1286069693439254529 …

      Eric Feigl-Ding added,

      Antoine FLAHAULTVerified account @FLAHAULT
      1/2 - “HCQ did not show antiviral activity in a model of reconstituted human airway epithelium. In macaques, neither HCQ nor HCQ+AZTH showed a significant effect on the viral load levels in any of the tested compartments.”https://www.nature.com/articles/s41586-020-2558-4_reference.pdf …
      Show this thread
      11 replies 27 retweets 87 likes
      Show this thread
    10. Eric Feigl-Ding‏Verified account @DrEricDing 28 Jul 2020

      10) At the end of the day, folks on twitter should not be arbiter. Just wish there was some group of experts who take a look at all HCQ data instead of online pundits... (checks notes)... oh wait, the @US_FDA... (checks notes again)... and it’s dangerous. https://www.fda.gov/drugs/drug-safety-and-availability/fda-cautions-against-use-hydroxychloroquine-or-chloroquine-covid-19-outside-hospital-setting-or …

      24 replies 42 retweets 141 likes
      Show this thread
      Eric Feigl-Ding‏Verified account @DrEricDing 29 Jul 2020

      Eric Feigl-Ding Retweeted Eric Feigl-Ding

      11) Connecting my two threads in HCQ together—my other thread discusses what proponents of HCQ demand in terms of evidence. Basically, HCQ proponents want nothing less than a trial for HCQ+azithro+zinc among non-hospitalized #COVID19 patients or bust! https://twitter.com/drericding/status/1288142332219596800?s=21 …https://twitter.com/DrEricDing/status/1288142332219596800 …

      Eric Feigl-Ding added,

      Eric Feigl-DingVerified account @DrEricDing
      📌HCQ controversy—so right wing twitter-sphere descended into my HCQ debunk 🧵. They gripe that it works as a “HCQ+azithromycin+zinc” combo. Yet they tout favorable Henry Ford HCQ study—but HF wasn’t that combo! When I show other null studies, they reject those—cuz not combo. Oy!
      Show this thread
      7:24 AM - 29 Jul 2020
      • 15 Retweets
      • 64 Likes
      • Paulo Marques 🇧🇷 💧Chris Murray 🏳️‍🌈Bill Redmond-Palmer vanna crawford A Silly Thon Pony First, Listen. dmroc A   :  -   )  Changing ApiFeelGood
      21 replies 15 retweets 64 likes
        1. Eric Feigl-Ding‏Verified account @DrEricDing 27 Aug 2020

          Eric Feigl-Ding Retweeted Eric Feigl-Ding

          12) UPDATE— a new meta analysis on HYDROXYCHLOROQUINE has just come out. Read this new thread 🧵https://twitter.com/DrEricDing/status/1299126551599079428 …

          Eric Feigl-Ding added,

          Eric Feigl-DingVerified account @DrEricDing
          📍BUCKLE UP—huge HYDROXYCHLOROQUINE & #COVID19 meta-analysis of all useable trials & observational studies w/ 30,000—11,932 participants on HCQ, 8,081 on HCQ+azithromycin & 12,930 control. ➡️ Result? Big fat null. Trials or not. HCQ+azithro even worse! 🧵 https://www.clinicalmicrobiologyandinfection.com/article/S1198-743X(20)30505-X/fulltext … pic.twitter.com/YlGWdy29iF
          Show this thread
          3 replies 12 retweets 32 likes
          Show this thread
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        1. Smacked around by Adam Smith's invisible hand‏ @doublewooddan 29 Jul 2020
          Replying to @DrEricDing

          Am I right in understanding that there could be a slight benefit to some subset of covid sufferers who are treated with that combo, but that the risk of heart problems from HCQ outweighs any real benefit? Or is this all snake oil? (genuinely asking)

          0 replies 0 retweets 1 like
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        1. C-19 & Vitamin D‏ @c19d3k2 29 Jul 2020
          Replying to @DrEricDing

          "Nothing less", is this ... completely unreasonable?

          0 replies 0 retweets 2 likes
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        1. TENNESSEE  🍊 🇺🇸‏ @Tenn1796 29 Jul 2020
          Replying to @DrEricDing

          What about prophylactically?

          0 replies 0 retweets 1 like
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        1.  😒‏ @melbelle36 29 Jul 2020
          Replying to @DrEricDing

          Yep!

          0 replies 0 retweets 0 likes
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        1. Mike Simmons‏ @Astro_MikeS 29 Jul 2020
          Replying to @DrEricDing

          Conspiracy theorists and anti-science types always demand solid evidence from you. Ask them for their evidence and they have none. Apply THEIR criteria for “truth” and they crumble.

          0 replies 0 retweets 1 like
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        1.  ✨Special K ✨‏ @Specialk69K 29 Jul 2020
          Replying to @DrEricDing

          it's an anti-viral....preventing the virus to replicate, of course it doesn's work when the virus already replicated.

          0 replies 0 retweets 0 likes
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        1. Papa Joe - official senior citizen  🇺🇸 🌊‏ @joe_nilo 30 Jul 2020
          Replying to @DrEricDing

          I fell down this rabbit hole yesterday. I wish I had seen your tweets then. I was swarmed with people tweeting the HF study, studies that proved to opposite of what they claimed, the Yale epidemiologist video, etc. I checked Twitter this morning & another 40 replies. Muted convo

          0 replies 0 retweets 0 likes
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        1. New conversation
        2.  🥀‏ @elinocontext 31 Jul 2020
          Replying to @DrEricDing

          @threadreaderapp unroll

          1 reply 0 retweets 0 likes
        3. Thread Reader App‏ @threadreaderapp 31 Jul 2020
          Replying to @elinocontext

          Bonjour, here is your unroll: @DrEricDing: ⚠️DEBUNKING HYDROXYCHLOROQUINE (again)—w/ that viral HCQ video today, it’s time to bump up this thread 🧵 on… https://threadreaderapp.com/thread/1287912652006719488.html … See you soon. 🤖

          0 replies 0 retweets 0 likes
        4. End of conversation

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