Skip links

Accelerating Rare Disease Diagnosis and Treatment

3X Genetics is a molecular diagnostics company that is accelerating the diagnosis and treatment of rare genetic diseases, with an initial focus on Repeat Expansion Disorders (REDs). We have developed breakthrough tests and tools that deliver high-precision results. We collaborate with patients, biopharma, clinicians, and researchers to advance the understanding and treatment of rare genetic diseases.

A family of five at home: parents standing behind three seated children, the youngest in a wheelchair
Families with myotonic dystrophy experience systemic health problems due to a repeat expansion in the DMPK gene. (AI-generated image; not actual patients. See note at the foot of the page.)
  • CLIA-registered laboratoryCLIA-ID 22D2345868, Leominster, MA. Massachusetts certification pending.
  • Single-molecule reads, no PCRRepeat count, sequence and methylation are called for every read, straight from native DNA.
  • DM1 white paper, April 202614 subjects and about 1,800 individually sequenced molecules, compared across three independent methods.