
Quoiden helps families trace hereditary links to OTC Deficiency, access free genetic testing, and connect with life-saving clinical trials - all through a secure, consent-driven platform.
Traditional genetic testing has limits. Quoiden uses genealogy to reveal hereditary risks that testing may miss, allowing families to seek care and make informed decisions.
Families gain access to no-cost genetic testing and professional counseling, helping them understand results and take action with expert support. Start your free OTC Deficiency prescreening here.
When appropriate, Quoiden securely connects families with clinical trials and emerging gene therapies, offering hope through science and community.
Your data stays yours. Quoiden never stores genetic information - every step is consent-driven and built for complete confidentiality.
Join a growing network of families, researchers, and advocates working together to raise awareness and advance care for rare genetic disorders.
Transform your family’s history into a tool for prevention and understanding, creating a legacy of health, awareness, and shared care across generations.

Born from personal loss, Quoiden was created after we lost Baine to a rare genetic disorder called OTC Deficiency at the age of 7. Through our family’s search for answers, we uncovered a powerful truth: genealogy can reveal hidden risks. Today, that discovery fuels a secure, lifesaving platform for families everywhere.
Have questions about Quoiden, OTC deficiency, or rare genetic diseases? Our FAQ provides clear answers and helpful resources to guide you.
OTC deficiency is a genetic condition that affects the body’s ability to break down protein. When protein can’t be processed properly, ammonia builds up in the bloodstream, which can be dangerous - especially for the brain. The good news is that once identified through genetic testing, OTC deficiency can be managed with proper medical care.
Symptoms of OTC deficiency can vary from mild to life-threatening. They may include:
* Nausea or vomiting
* Stomach pain
* Headaches
* Extreme tiredness
* Confusion or disorientation
* Trouble waking up
* Coma
In severe cases, untreated OTC deficiency can lead to sudden death.
OTC deficiency can affect anyone - babies, children, and adults of any sex. Because the condition is genetic, people can carry the gene without knowing it. Even if no one in your family has been diagnosed, you may still be at risk.
Yes. Testing for OTC deficiency is non-invasive and completely safe.
If your baby is showing symptoms, testing should be done as soon as possible.
Quoiden helps families understand their risk of OTC deficiency, connect with doctors, and access genetic testing.
We also support education and clinical research - always with your full consent.
Learn more about what we do here.
Yes! Getting tested for OTC deficiency is simple:
1. Start with a short prescreen questionnaire to see if you may be at risk.
2. If you’re flagged as at risk, you’ll complete a second, more detailed questionnaire to help a doctor determine whether testing is recommended.
3. If you qualify, you may receive free at- home genetic testing.A cheek-swab kit will be mailed to your home with clear, easy-to-follow instructions.
4. Once your sample is processed, a doctor reviews your results and explains the next steps.
No. A federal law called the Genetic Information Nondiscrimination Act (GINA) protects you. It prevents health insurers from using your genetic information to deny coverage or raise your rates.