R
Ryan Ptashkin
Researcher at Memorial Sloan Kettering Cancer Center
Publications - 65
Citations - 5089
Ryan Ptashkin is an academic researcher from Memorial Sloan Kettering Cancer Center. The author has contributed to research in topics: Medicine & Cancer. The author has an hindex of 18, co-authored 46 publications receiving 2995 citations. Previous affiliations of Ryan Ptashkin include University of Chicago & University of Michigan.
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Journal ArticleDOI
Mutational landscape of metastatic cancer revealed from prospective clinical sequencing of 10,000 patients
Ahmet Zehir,Ryma Benayed,Ronak Shah,Aijazuddin Syed,Sumit Middha,Hyunjae R. Kim,Preethi Srinivasan,Jianjiong Gao,Debyani Chakravarty,Sean M. Devlin,Matthew D. Hellmann,David Barron,Alison M. Schram,Meera Hameed,Snjezana Dogan,Dara S. Ross,Jaclyn F. Hechtman,Deborah DeLair,Jinjuan Yao,Diana Mandelker,Donavan T. Cheng,Raghu Chandramohan,Abhinita Mohanty,Ryan Ptashkin,Gowtham Jayakumaran,Meera Prasad,Mustafa H Syed,Anoop Balakrishnan Rema,Zhen Y Liu,Khedoudja Nafa,Laetitia Borsu,Justyna Sadowska,Jacklyn Casanova,Ruben Bacares,Iwona Kiecka,Anna Razumova,Julie B Son,Lisa Stewart,Tessara Baldi,Kerry Mullaney,Hikmat Al-Ahmadie,Efsevia Vakiani,Adam Abeshouse,Alexander V Penson,Philip Jonsson,Niedzica Camacho,Matthew T. Chang,Helen Won,Benjamin Gross,Ritika Kundra,Zachary J. Heins,Hsiao-Wei Chen,Sarah Phillips,Hongxin Zhang,Jiaojiao Wang,Angelica Ochoa,Jonathan Wills,Michael H. Eubank,Stacy B. Thomas,Stuart Gardos,Dalicia N. Reales,Jesse Galle,Robert Durany,Roy Cambria,Wassim Abida,Andrea Cercek,Darren R. Feldman,Mrinal M. Gounder,A. Ari Hakimi,James J. Harding,Gopa Iyer,Yelena Y. Janjigian,Emmet Jordan,Ciara Marie Kelly,Maeve A. Lowery,Luc G. T. Morris,Antonio Omuro,Nitya Raj,Pedram Razavi,Alexander N. Shoushtari,Neerav Shukla,Tara Soumerai,Anna M. Varghese,Rona Yaeger,Jonathan A. Coleman,Bernard H. Bochner,Gregory J. Riely,Leonard B. Saltz,Howard I. Scher,Paul Sabbatini,Mark E. Robson,David S. Klimstra,Barry S. Taylor,José Baselga,Nikolaus Schultz,David M. Hyman,Maria E. Arcila,David B. Solit,Marc Ladanyi,Michael F. Berger +99 more
TL;DR: A large-scale, prospective clinical sequencing initiative using a comprehensive assay, MSK-IMPACT, through which tumor and matched normal sequence data from a unique cohort of more than 10,000 patients with advanced cancer are compiled and identified clinically relevant somatic mutations, novel noncoding alterations, and mutational signatures that were shared by common and rare tumor types.
Journal ArticleDOI
Comprehensive Molecular Profiling of Intrahepatic and Extrahepatic Cholangiocarcinomas: Potential Targets for Intervention.
Maeve A. Lowery,Ryan Ptashkin,Emmet Jordan,Michael F. Berger,Ahmet Zehir,Marinela Capanu,Nancy E. Kemeny,Nancy E. Kemeny,Eileen M. O'Reilly,Eileen M. O'Reilly,Imane El-Dika,William R. Jarnagin,William R. Jarnagin,James J. Harding,James J. Harding,Michael I. D'Angelica,Michael I. D'Angelica,Andrea Cercek,Andrea Cercek,Jaclyn F. Hechtman,David B. Solit,David B. Solit,Nikolaus Schultz,David M. Hyman,David M. Hyman,David S. Klimstra,David S. Klimstra,Leonard B. Saltz,Leonard B. Saltz,Ghassan K. Abou-Alfa,Ghassan K. Abou-Alfa +30 more
TL;DR: These prospective data provide a contemporary benchmark for guiding the development of targeted therapies in molecularly profiled cholangiocarcinoma, and support to the use of molecular profiling to guide therapy selection in patients with advanced biliary cancers.
Journal ArticleDOI
Cancer therapy shapes the fitness landscape of clonal hematopoiesis
Kelly L. Bolton,Ryan Ptashkin,Teng Gao,Lior Z. Braunstein,Sean M. Devlin,Daniel Kelly,Minal Patel,Antonin Berthon,Aijazuddin Syed,Mariko Yabe,Catherine C. Coombs,Nicole M. Caltabellotta,Michael Walsh,Kenneth Offit,Zsofia K. Stadler,Diana Mandelker,Jessica Schulman,Akshar Patel,John Philip,Elsa Bernard,Gunes Gundem,Juan E. Arango Ossa,Max Levine,Juan S. Medina Martinez,Noushin Farnoud,Dominik Glodzik,Sonya Li,Mark E. Robson,Choonsik Lee,Paul D.P. Pharoah,Konrad H. Stopsack,Barbara Spitzer,Simon Mantha,James A. Fagin,Laura Boucai,Christopher J. Gibson,Benjamin L. Ebert,Andrew L. Young,Todd E. Druley,Koichi Takahashi,Nancy K. Gillis,Markus Ball,Eric Padron,David M. Hyman,David M. Hyman,José Baselga,Larry Norton,Larry Norton,Stuart Gardos,Stuart Gardos,Virginia M. Klimek,Virginia M. Klimek,Howard I. Scher,Howard I. Scher,Dean F. Bajorin,Dean F. Bajorin,Eder Paraiso,Ryma Benayed,Maria E. Arcila,Marc Ladanyi,David B. Solit,Michael F. Berger,Martin S. Tallman,Montserrat Garcia-Closas,Nilanjan Chatterjee,Luis A. Diaz,Ross L. Levine,Lindsay M. Morton,Ahmet Zehir,Elli Papaemmanuil +69 more
TL;DR: It is found mutations are selected differentially based on exposures, whereas cancer therapy with radiation, platinum and topoisomerase II inhibitors preferentially selects for mutations in DNA damage response genes (TP53, PPM1D, CHEK2).
Journal ArticleDOI
High Yield of RNA Sequencing for Targetable Kinase Fusions in Lung Adenocarcinomas with No Mitogenic Driver Alteration Detected by DNA Sequencing and Low Tumor Mutation Burden
Ryma Benayed,Michael Offin,Kerry Mullaney,Purvil Sukhadia,Kelly M. Rios,Patrice Desmeules,Ryan Ptashkin,Helen Won,Jason C. Chang,Darragh Halpenny,Alison M. Schram,Charles M. Rudin,David M. Hyman,Maria E. Arcila,Michael F. Berger,Ahmet Zehir,Mark G. Kris,Alexander Drilon,Marc Ladanyi +18 more
TL;DR: A significant enrichment for fusions in DNAseq driver–negative samples with low TMB is observed, supporting the prioritization of such cases for additional RNAseq.
Journal ArticleDOI
First-line pembrolizumab and trastuzumab in HER2-positive oesophageal, gastric, or gastro-oesophageal junction cancer: an open-label, single-arm, phase 2 trial.
Yelena Y. Janjigian,Yelena Y. Janjigian,Steven B Maron,Steven B Maron,Walid K. Chatila,Walid K. Chatila,Brittanie M Millang,Shweta S. Chavan,Carly Alterman,Joanne F. Chou,Michal Segal,Marc Simmons,Parisa Momtaz,Marina Shcherba,Geoffrey Y. Ku,Geoffrey Y. Ku,Alice Zervoudakis,Elizabeth Won,Elizabeth Won,David P. Kelsen,David P. Kelsen,David H. Ilson,David H. Ilson,Rebecca J. Nagy,Richard B. Lanman,Ryan Ptashkin,Mark T.A. Donoghue,Marinela Capanu,Barry S. Taylor,David B. Solit,Nikolaus Schultz,Jaclyn F. Hechtman +31 more
TL;DR: The primary endpoint was 6-month progression-free survival, defined as the proportion of patients alive and free of progression at 6 months, assessed in patients who received at least one dose of trastuzumab and pembrolizumab.