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Welcome to T21RS

Trisomy 21 Research Society (T21RS) is the first non-profit scientific organization of researchers studying Down syndrome. T21RS was established in 2014 as an international society under Dutch law, and is recognized as Public Benefit Organisation by the Dutch Tax Administration.


Our main goals

  • To stimulate Down syndrome research, and facilitate collaboration between researchers
  • To announce Job offers (see Research section)
  • To organize the 4th T21RS International Conference 2021 in Irvine, California
  • To harmonize protocols for (pre)clinical research
  • To support education and training of young researchers
  • To explain (recent) findings to the general public, and promote interaction between scientists and Down syndrome associations

T21RS Membership is intended for scientists and clinicians studying Down syndrome. If you are not a scientist, but you would like to support our aims, you can become a T21RS Associate Member or donate via the 'Donate Now' button on the right. Many thanks!

Join T21RS today


  • Be part of a worldwide research network

  • Support Down syndrome research

  • Membership benefits

  • T21RS Thesis Award

  • T21RS International Conference
    reduced registration fee

  • Possibility to participate in one of the T21RS Committees

Join us!Make a donation


Upcoming meeting