GI oncologist and health services researcher at Oregon Health & Science University

Joined December 2014
Photos and videos
Emerson Chen retweeted
11 Sep 2020
Pembro in “TMB high” (10 ) cancers - paper published in Lancet Oncol. No difference in OS between TMB high and TMB low. Neverthelessless FDA approved. SMH. @OncoAlert
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Emerson Chen retweeted
Friendly reminder that surrogate endpoints like PFS only reduce study time by an average of 11 months - @IamEmchee, et al. 🙂 We shouldn’t proclaim new therapies as “new standard of care”, without showing OS or QOL benefit for patients. #ASCO2020 #asco20 jamanetwork.com/journals/jam…
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Critical Care and the COVID-19 Outbreak in Italy: Early Experience and Forecast ja.ma/2wTgyUH

Emerson Chen retweeted
Dr. Christopher Booth reminds us about endpoints that matter to patients. #GI20
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Couldn’t agree more, would like to tell my patients how a new therapy will directly help them. “Surrogate End Points and Patient-Reported Outcomes for Novel Oncology Drugs” ja.ma/2nolHiy

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Wow amazing online course that changed how I think about oncology drugs, and completed just in time before my first day as faculty tomorrow @edxonline #mooc edx.org/course/the-fda-and-p…

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Emerson Chen retweeted
I look forward to a response and hope Dr. @ScottGottliebMD will rectify his mistake & resign from his position at @Pfizer. It would send a strong message about the importance of integrity of current & former federal officials.
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Health policy conundrum, 1) gets cancer drug approved faster but more uncertainty 2) might not get drug approved but more certainty of clinical benefit jamanetwork.com/journals/jam…
great point.. raises the question, should one design a trial aimed at the 1) end point you can achieve or 2) the end point which is more meaningful?
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I find the sicker treatment-refractory patient tend to be on left and the healthier adjuvant/first-line metastatic patient on the right.
The bargain of accelerated approvals and the spectrum of patient viewpoints on this issue was described brilliantly by @VPrasadMDMPH at #ASCO19
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Emerson Chen retweeted
Len Saltz @sloan_kettering listing no-value interventions in #colorectalcancer Anything to add or subtract? #ASCO19 #crcsm
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Emerson Chen retweeted
On interpreting #clinicaltrials: When you hear “A HR of __ & a __month diff in PFS,” consider what the control arm is. The interpretation of those #s differs if comparator is placebo/BSC or active control, & if active control, if new drug is an add on or replacement tx. #ASCO19
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Emerson Chen retweeted
ANNOUNCE failed to meet OS primary endpoint and Olaratumab will be withdrawn after previous initial FDA @US_FDA approval. #ASCO19 #ASCO2019 #sarcoma #pdgfra
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Emerson Chen retweeted
In light of today’s #ASCO19 plenary, please read our latest @JAMAInternalMed paper on accelerated approval to understand this pathway’s trade offs. We even managed to sneak in a sentence about #olaratumab at the very last moment. jamanetwork.com/journals/jam… #ASCOplenary #sarcoma
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Emerson Chen retweeted
“Clinical trials are there to serve patients, not the other way around.” —@oncology_bg #ASCO19 #bcsm #lcsm #crcsm #mmsm
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Emerson Chen retweeted
And here’s the story covered by @rrichardh in the NPR : npr.org/sections/health-shot…

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Emerson Chen retweeted
The biggest honor, however, is to have 2 editorials accompany our paper. I always lamented @RichardLehman1 ‘s retiring from BMJ blogs without getting chance to read his comment on my work. But now he has written an editorial instead with @cpgYALE . jamanetwork.com/journals/jam… 🙏

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Emerson Chen retweeted
Another brilliant editorial is from Zeke Emmanuel et al. You’ll enjoy every word of this. jamanetwork.com/journals/jam…

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Emerson Chen retweeted
Published just now in @JAMAInternalMed . Our assessment of the Clinical Benefit of Cancer Drugs Receiving Accelerated Approval. jamanetwork.com/journals/jam… @SpencerPHey @akesselheim @PORTAL_Research @BrighamResearch @QueensUHealth
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Aspired to be a plain “trialist” but ended up looking at 170 cancer drug registration trials since 2006: “Study Time Estimates Using Surrogate End Points vs Overall Survival in Oncology Clinical Trials” ja.ma/2K3bP8L

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