The fifth annual Observational Health Data Sciences and Informatics (OHDSI) Symposium was held on September 15-17, 2019. OHDSI is a multi-stakeholder community on a journey to develop reliable real-world evidence through methodological research and open-source analytics development to bring out the value of observational health data. This year, more than 400 attendees gathered in North Bethesda, Maryland for the symposium. Around 70 participants flew in from Korea, including Prof. Howard Lee and Yoomin Jeon. The symposium had 1 day packed with dynamic and engaging keynote lectures, panel discussions, and a collaborator showcase featuring 7 lightning talks, 10 interactive demonstrations of OHDSI's open-source software, and nearly 80 poster presentations. The other 2 days of the symposium offered more practical hands-on tutorial workshops covering 6 different topics related to real-world data. The tutorial sessions covered the following topics: 1) OMOP Common Data Model & Standardized Vocabularies, 2) Cohort Definition/Phenotyping, 3) Patient-Level Prediction (PLP), 4) Population-Level Estimation (PLE), 5) Data Quality, 6) Extraction, Transformation, and Load process (ETL). Through these hands-on tutorial sessions, Prof. Lee and Yoomin were able to better understand how to leverage the ATLAS, a type of OHDSI's open-source software for designing and executing analytical use cases for clinical characterization, PLP, and PLE within one institution or across the entire OHDSI network. All the tutorial materials can be found here!

As a part of the OHDSI's knowledge-sharing mission, the Book of OHDSI was officially released and distributed for free at the symposium. The book is 470 pages long, consists of twenty chapters in 5 different sections: the OHDSI Community, Uniform Data Representation, Data Analytics, Evidence Quality, and OHDSI Studies. Many OHDSI community members voluntarily chipped-in to summarize all the knowledge developed over its existence into one place, which will assist both newcomers and data science veterans in doing research related to common data model. The book is available on Amazon or online for free. 

Prof. Howard Lee was invited to speak at an educational seminar and an international symposium, both sponsored by the Pharmaceutical Society of Korea, in association of its spring convention, held in the Millennium Hilton Seoul, Korea, on April 25-26. The PSK is an academic organization representing pharmacy since its foundation in 1946, which has grown into the biggest institution for pharmacists in Korea. In the educational seminar, Prof. Lee talked about how bio-big data can be used for the efficient planning and conduct of clinical drug development. His talk was based on his experience and lessons learned in the two recent research projects that CCADD led and will be actively participating, i.e., ACTRiS and SUCCESS. His presentation has received media attention as summarized in a newspaper article.   

The international symposium was held on the second day of the convention. Prof. Lee introduced the audience to several possible applications of artificial intelligence (AI) to clinical trials, with a special focus on a CCADD research project using feature selection for clinical trial feasibility. This symposium was organized by Prof. Hwi-yeol Yun, Chungnam National University College of Pharmacy, a long-time friend and collaborator of Prof. Lee's.   

Polasek TM, Rostami-Hodjegan A, Yim D-S, Jamei M, Lee H, Kimko H, Kim JK, Nguyen PTT, Darwich AS, Shin J-G. What Does it Take to Make Model-Informed Precision Dosing Common Practice? Report from the 1st Asian Symposium on Precision Dosing. The AAPS Journal. 2019;21(2):17. dos: 10.1208/s12248-018-0286-6

Four CCADD members attended the SNU-Hokkaido University joint symposium held in Sapporo, Japan. On the second day of the symposium, professors and students of the Graduate School of Convergence Science and Technology of Seoul National University  met members of the Graduate School of Information Science and Technology of Hokkaido University and shared their research ideas, experiences, and results. The participants from the two universities introduced their research progress on a variety of topics, varying from computer-human interaction study to the development of new drug entities using machine learning technology. 

Dr. Soohyun Kim of CCADD gave an oral presentation, where she discussed if therapeutic drug monitoring (TDM) of vancomycin is cost-effective in elderly patients. According to Dr. Kim, the cost-effectiveness of vancomycin in this population might not be so cost-effective as was previously anticipated, but could be cost-effective in patients admitted to the intensive care unit. In the following poster session, Dr. Jeong-An Gim presented the results of a pharmacoepigenomic research (Difference in DNA methylation and pharmacokinetics parameters of tacrolimus between two periods of a bioequivalence test with tacrolimus). Dr. Kim tried to provide a basis for tacrolimus pharmacoepigenomics and may provide a clue to the different dose of tacrolimus through his research. Yoomin Jeon, a PhD student at CCADD, introduced a new research project, entitled "A Dimensionality Reduction Model to Increase the Efficiency and Accuracy of Clinical Trial Feasibility Assessment Using Electronic Medical Records." Yoomin’s poster was associated with a new grant CCADD received recently from the National Research Foundation (PI: Prof. Howard Lee). Another PhD student, Siun Kim, presented his research with Dr. Soohuyn Kim about the validity of the equivalence margin in the phase 3 trial with CT-P13, an Infliximab biosimilar. He had an opportunity to discuss the implication and the future plan of the study with researchers of Hokkaido University.

Those attending the symposium from CCADD were able to meet with many young Japanese professionals and researchers in various fields. They  look forward to seeing them again at a joint symposium at Seoul National University next year.

CCADD members attended the KAIST CHIP (Bio-Healthcare Innovation and Policy) symposium on September 20, 2017 held at the Novotel Ambassador Seoul Gangnam. At the symposium,  Dr. Howard Lee talked about the team's collective perspective on the utility and future potential of the EHR4CR project by the Innovative Medicines Initiative (IMI) in Europe, particularly in terms of streamlining the process by which clinical trial participants are screened and enrolled based on their eligibility assessment aided by artificial intelligence.