About us
Words from the President
Masaki Shimizu
The president of Pediatric Rheumatology Association of Japan (PRAJ)

Welcome to the website of Pediatric Rheumatology Association of Japan (PRAJ).
The treatment of pediatric rheumatic diseases has undergone dramatic advances by elucidating the pathogenesis and introducing new treatments such as molecular targeted therapy. However, many issues remain to be resolved. For further development of pediatric rheumatology, we would like to promote basic and clinical research. Furthermore, we would like to train excellent pediatric rheumatologists to provide high-quality medical care.
Approximately 600 pediatric rheumatologists in Japan are members of PRAJ. PRAJ holds the annual scientific meeting every autumn and provides an opportunity for participants to share their experiences and knowledge of pediatric rheumatology. PRAJ aims to promote internationalization. We welcome the participation of pediatric rheumatologists from around the world.
List of Past Presidents
| Name | Affiliation | Period | |
|---|---|---|---|
| 1st President | Nobuo WATANABE | Kyorin University | 1991-2005 |
| 2nd President | Shunpei YOKOTA | Yokohama City University | 2006–2009 |
| 3rd President | Shuji TAKEI | Kagoshima University | 2010–2013 |
| 4th President | Yasuhiko ITOH | Nihon Medical School | 2014–2017 |
| 5th President | Masaaki MORI | Tokyo Medical and Dental University | 2018–2020 |
| 6th President | Takako MIYAMAE | Tokyo Women’s Medical University | 2021–2025 |
| 7th President | Masaki Shimizu | Institute of Science Tokyo | 2026-Present |
List of Past Academic Annual Meeting Chairs
| Time | Name | Affiliation | Date |
|---|---|---|---|
| 1st Meeting | Nobuo WATANABE | Kyorin University | November 30, 1991 |
| 2nd Meeting | Teiichi ODA | Fukuoka University | November 21, 1992 |
| 3rd Meeting | Satoshi FUJIKAWA | Medical University | November 27, 1993 |
| 4th Meeting | Masashi HOKONOHARA | Kagoshima University | November 30, 1994 |
| 5th Meeting | Junichi YATA | Tokyo Medical and Dental University | October 28, 1995 |
| 6th Meeting | Shumpei YOKOTA | Yokohama City University | October 26, 1996 |
| 7th Meeting | Osamu TATSUZAWA | National Pediatric Hospital | October 25, 1997 |
| 8th Meeting | Yasuhisa KATO | Kurume University | October 17-18, 1998 |
| 9th Meeting | Noriyuki WADA | The Jikei University School of Medicine | October 23, 1999 |
| 10th Meeting | Yoichi KONO | Chiba University | October 14, 2000 |
| 11th Meeting | Shuji TAKEI | Kagoshima University | October 27–28, 2001 |
| 12th Meeting | Atsushi KOMIYAMA | Shinshu University | September 27–28, 2002 |
| 13th Meeting | Kunihiko AKAGI | Kanagawa Children’s Medical Center | October 11–12, 2003 |
| 14th Meeting | Yasuji INAMO | Nihon University | October 09–10, 2004 |
| 15th Meeting | Yasuhiko ITOH | Nippon Medical School | October 08–09, 2005 |
| 16th Meeting | Hiroshi KAWAI | Nagano Children’s Hospital | October 06–08, 2006 |
| 17th Meeting | Takeshi NOMA | Kitazato University | September 28–30, 2007 |
| 18th Meeting | Tadashi ARIGA | Hokkaido University | October 03–05, 2008 |
| 19th Meeting | Takuji MURATA | Osaka Medical College | October 02–04, 2009 |
| 20th Meeting | Noriko KINJO | University of the Ryukyus | February 11–13, 2011 |
| 21st Meeting | Mari MIYOSHI | Hyogo Prefectural Kobe Children’s Hospital | October 14–16, 2011 |
| 22nd Meeting | Naomi IWATA | Aichi Children’s Health and Medical Center | October 05–06, 2012 |
| 23rd Meeting | Tsutomu OISHI | Saitama Children’s Medical Center | October 11–13, 2013 |
| 24th Meeting | Hiroaki UMEBAYASHI | Miyagi Children’s Hospital | October 03–05, 2014 |
| 25th Meeting | Akihiro YACHIE | Kanazawa University | October 09–11, 2015 |
| 26th Meeting | Minako TOMIITA | Chiba Children’s Hospital | October 21–23, 2016 |
| 27th Meeting | Ryuta NISHIKOMORI | Kyoto University | October 06–08, 2017 |
| 28th Meeting | Masaaki MORI | Tokyo Medical and Dental University | October 26–28, 2018 |
| 29th Meeting | Ichiro KOBAYASHI | KKR Sapporo Medical Center | October 04–06, 2019 |
| 30th Meeting | Takako MIYAMAE | Tokyo Women’s Medical University | October 15–17, 2021 |
| 31th Meeting (Tentative) | Utako KANEKO | Niigata University | October 14–16, 2022 |
The association was approved as a subcommittee at the 11th Japan Pediatric Society meeting.
The 2020 Congress has been postponed due to the COVID-19 pandemic.
