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Pioneering innovative therapies to improve the lives of those with genetic intellectual disabilities

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Our Mission

Paris - Philadelphia - Madrid - Dubai

The mission of the Jerome Lejeune Foundation USA is to raise and disburse funds in order to provide research, care, and advocacy to benefit those with genetic intellectual disabilities in accordance with the medical and ethical standards of Dr. Jerome Lejeune, the father of modern genetics. This is carried out by conducting, promoting, and funding therapeutically oriented research; by assisting in the development of healthcare services for these individuals; and by serving as their advocate in a spirit of respect for the dignity of all human persons.

Make a tax-deductible gift to support the mission of the Jerome Lejeune Foundation

Created in 1996 in Paris and in 2012 in the United States, the Jerome Lejeune Foundation is registered with the Internal Revenue Service as a 501(c)(3) nonprofit corporation serving those with genetic intellectual disabilities and their families:

  1. RESEARCH in order to identify targeted treatments for patients affected by genetic intellectual disabilities.  The Jerome Lejeune Foundation is the world’s largest private funder of research on trisomy 21 (Down syndrome) and other disabilities such as Fragile X syndrome, Rhett syndrome, Prader-Willi syndrome, and others. Projects funded by the Foundation are now beginning to move into early clinical trials with the great hope that commercially available products will be available to improve the lives of those affected by genetic intellectual disabilities within 10 years.
  2. CARE to provide specialized medical treatment and follow-up throughout the patient’s life. The U.S. Foundation intends to develop and promote a model of care for patients in the United States based upon the work of the Lejeune Institute in Paris, a medical clinic which provides care to over 7,000 patients.
  3. ADVOCACY for the fundamental human rights of persons with genetic intellectual disability. The Jerome Lejeune Foundation is committed to the inherent human dignity of all persons and the protection of life from conception to natural death. Through educational programs, publications, and engagement in bioethical debates the Foundation works to ensure that persons with genetic intellectual disabilities are understood and respected for the unique gifts they bring to the human community.

In 2015 the foundation expanded further to include an office in Madrid, and a clinic in Dubai. 

You can view a brief narrated slideshow on the mission of the Jerome Lejeune Foundation here:


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Jerome Lejeune Foundation