Director of New Technology @C2iGenomics 🧬 💻

Joined January 2011
Ryan N. Ptashkin retweeted
By now, i’m sure most of you saw that FDA is planning to regulate LDTs (public-inspection.federalreg…). A paper, suggesting clinical labs failed PT testing, is cited in the FDA doc as one of the reasons. What if the analyses in this paper were flawed? 🧵👇🏼 doi.org/10.5858/arpa.2023-03…
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Ryan N. Ptashkin retweeted
Thrilled to be attending #AACR2023 in Orlando! 😃 We're proud to present 3 posters and share how @C2iGenomics technology is making a real difference in MRD testing for cancer patients. I'd love to meet you over coffee at booth 1161 and chat more about it! ☕️ #MRD #WGS
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Ryan N. Ptashkin retweeted
🔥Extra-hot pre-print before this hellsite goes up in smoke 🔥 New horizons open up when sequencing costs go ↘️ @UltimaGenomics Interested in deep cfDNA WGS for ultra-sensitive cancer detection? Duplex sequencing at genome scale? biorxiv.org/content/10.1101/… Check out 🪡👇
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By removing rare germline variants from reporting through genotyping of candidate variants in matched normal tissue(s), we can better identify appropriate markers for MRD assessment and prevent false positive calls (6/n)
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With continued testing and data sharing, it is our belief that broad genomic assessment will support identifying novel drug targets for and improving noninvasive monitoring for response in all patients with hematologic cancers (7/n)
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Ryan N. Ptashkin retweeted
This month's cover of @CD_AACR features work on mosaic variants in cancer susceptibility genes by @FresiaPareja @RPtash David Brown, Jorge Reis-Filho, Diana Mandelker and colleagues @MSKPathology @sloan_kettering cancerdiscovery.aacrjournals…
Check out the April issue of Cancer Discovery! bit.ly/3DHS1A3
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Ryan N. Ptashkin retweeted
It's Friday and it's time for a new preprint biorxiv.org/content/10.1101/… : MSI status for cancer pts is critical as it is the first tissue-agnostic biomarker for treatment with pembrolizumab. We've been using NGS data from #MSKimpact + MSISensor to detect MSI status but 🧵 (1/n)
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The head of the United States Food and Drug Administration (!) @SteveFDA does not understand the difference between relative and absolute risk reduction -- a basic, fundamental concept in medicine, statistics and clinical trial interpretation. It just gets worse and worse.😢
"A 35 percent improvement in survival is a pretty substantial clinical benefit," FDA Commissioner @SteveFDA said in relation to the convalescent plasma emergency use authorization issued today.
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Come visit our @OncoKB poster (#2148) about annotation of the oncogenic effect and diagnostic, prognostic, and therapeutic implications of somatic genomic variants in hematologic malignancies #ASH2019 @sloan_kettering @ritikakundra10 @HongxinZhang @CDebyaniPhD
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Ryan N. Ptashkin retweeted
Happy to share our first @biorxivpreprint on how oncologic therapy shapes the fitness landscape of clonal hematopoiesis in cancer patients. Fantastic team effort between @KellyLBolton, @RPtash, @tgao2018 and @PapaemmanuilLab with support from many others! bit.ly/34acSJL
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Ryan N. Ptashkin retweeted
Michael Berger on tumour profiling to identify therapeutic biomarkers and guide clinical care in cancer #EMBLCanGen
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Still smiling (and wobbling) from a great #TCSNYCMarathon weekend and #1 cheer squad! Thanks to everyone that came out and helped raise over $6M! for @FredsTeam
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