In brief
This page is for families who have just heard: “Your child has a pathogenic variant in the TAOK1 gene.” We know what that moment feels like – a mixture of relief (finally, an answer), fear (what does it mean?), and confusion (what now?). We have been through it ourselves. Below you will find a step-by-step guide: what is worth doing in the first weeks and months after the diagnosis, in what order, and why. You do not have to do everything at once – treat this list as a map you will keep coming back to.
Step 1. Take a breath. This is no one’s fault
Start with what matters most: a genetic diagnosis takes nothing away from your child. They are exactly the same child they were before you received the result – and you now know more and can act more effectively. In most described cases, the TAOK1 variant arose de novo, as a spontaneous change that could not have been predicted or prevented. It does not result from anything you did or did not do. Give yourself permission to feel difficult emotions, too – they are a normal part of this journey, not a weakness.
Step 2. Secure the test result and make sure you understand it
Ask for the full genetic test result in writing (ideally also in electronic form) and keep it in a safe place – you will need it at every future consultation. Check exactly how the variant is described and how it was classified: “pathogenic,” “likely pathogenic,” or “of uncertain significance” (VUS) – this classification has real implications for the next steps. If anything is unclear, ask the doctor to explain it in plain language. You have every right to do so.
Step 3. Book a consultation at a genetic clinic
This is the most important referral to start with. A clinical geneticist will interpret the result, discuss the risk for future pregnancies, and plan testing for the parents. Testing both parents is recommended: it establishes whether the variant arose de novo or was inherited – the literature describes cases of the variant being inherited from a parent with very mild, previously unnoticed symptoms, because TAOK1-NDD shows incomplete penetrance and variable expressivity. While you are there, ask whether your child’s variant has been submitted to the international ClinVar database – every submitted case helps other families around the world.
Step 4. Build a care team around your child
Care in TAOK1-NDD is multidisciplinary. Depending on the child’s symptoms, the team most often includes: a pediatrician or primary care physician (as coordinator), a clinical geneticist, a pediatric neurologist, a physiotherapist, a speech and language therapist, and a psychologist, and, if needed, a gastroenterologist, cardiologist, endocrinologist, or orthopedist. Establish who will act as the lead physician and ask for a written care plan. We have prepared a separate page with a ready-made list of questions for appointments – “What to ask your doctor” – take it with you.
Step 5. Don’t wait – start therapies now
The most important practical rule: therapy does not need to (and should not) wait until all consultations are complete. The earlier developmental support begins, the better. From the literature, we know where support is most often needed: motor development (hypotonia in 58% of described patients, frequent joint laxity) – this is where physiotherapy helps; and speech and language – the most persistent area of difficulty, which is why it is worth starting speech and language therapy early and asking about augmentative and alternative communication (AAC), which allows a child to communicate before speech develops. Find out how the early intervention system works in your country and what documents are needed to access it.
Step 6. Discuss with your doctor which check-ups fit your child’s symptoms
Not every child with TAOK1-NDD needs every test — the scope is determined by the doctor based on the clinical picture. It is worth knowing what to ask about, though: monitoring of development and growth, head circumference measurement and possible brain imaging (macrocephaly affects 83% of described patients), vigilance for episodes that could suggest seizures (rare – 4 out of 50 patients in the largest cohort), support for feeding difficulties, and, in light of the most recent data, also asking about blood glucose and – in boys – about assessment for genital anomalies. You will find the details and context for each of these topics on the “What is TAOK1?” and “What to ask your doctor” pages.
Step 7. Join the community – you are not alone
This is the step families most often describe as a turning point. Our foundation brings together an international parent group from around the world – write to us and we will help you join. We also have a network of regional contacts in many countries (including Poland, Germany, the United Kingdom, and the United States – the full list is on the “Regional support” page), so there is a good chance you will be able to talk to someone in your own language. It is also worth downloading the free, plain-language guide to TAOK1-NDD by the organization Unique – you will find the link in the sources.
Step 8. Sort out the paperwork and system support
In most countries, children with neurodevelopmental disorders can access various forms of system support: disability certificates, financial benefits, funding for therapy, or support in education. The rules differ between countries, so ask your lead physician, your early intervention center, or other families from your country in our group – this is one of the most common and most practical questions the community can help with. Dealing with the paperwork can be tedious, but it genuinely broadens access to therapy.
Step 9. Take care of yourself and the rest of the family
Caring for a child with a rare disease is a marathon, not a sprint – and no parent can run a marathon without looking after their own strength. Do not hesitate to seek psychological support for yourself, to talk about the diagnosis with your partner and loved ones, and to give attention to the child’s siblings. Asking for help – from family, friends, professionals – is not a weakness; it is a strategy for the long road.
Step 10. Look to the future – and help bring it closer
Knowledge about TAOK1 is growing at a pace that gives well-founded hope: only six years passed between the first scientific description of the condition (2019) and the largest cohort study (2025). You can play a real part in this progress: make sure your child’s variant has been submitted to the ClinVar database, sign up for our newsletter, and when the TAOK1 patient registry launches – consider taking part. Every documented story brings closer the moment when the first causal therapy can be rigorously tested.
Sources
All medical information on this page comes from peer-reviewed scientific publications and curated genetic databases:
- Elkhateeb N. et al. Expanding the phenotype and genotype spectrum of TAOK1 neurodevelopmental disorder and delineating TAOK2 neurodevelopmental disorder. Genetics in Medicine, 2025;27(3). https://www.gimjournal.org/article/S1098-3600(24)00282-X/fulltext
- van Woerden G.M. et al. TAOK1 is associated with neurodevelopmental disorder and essential for neuronal maturation and cortical development. Human Mutation, 2021;42(4). https://onlinelibrary.wiley.com/doi/full/10.1002/humu.24176
- Hunter J.M. et al. Inherited and de novo variants extend the etiology of TAOK1-associated neurodevelopmental disorder. Cold Spring Harbor Molecular Case Studies, 2022;8(2). https://pmc.ncbi.nlm.nih.gov/articles/PMC8958914
- Dulovic-Mahlow M. et al. De Novo Variants in TAOK1 Cause Neurodevelopmental Disorders. American Journal of Human Genetics, 2019. https://www.sciencedirect.com/science/article/pii/S0002929719301910
- OMIM
#619575— Developmental delay with or without intellectual impairment or behavioral abnormalities (DDIB). https://omim.org/entry/619575 - ClinGen — TAOK1 dosage sensitivity curation. https://search.clinicalgenome.org/kb/gene-dosage/HGNC:29259
- Unique — Rare Chromosome Disorder Support Group: TAOK1-related neurodevelopmental disorder (family guide, 2025). https://rarechromo.org/media/singlegeneinfo/Single%20Gene%20Disorder%20Guides/TAOK1-related%20neurodevelopmental%20disorder%20FTNW.pdf
This content is for informational purposes only and does not replace medical advice. Last updated: August 2026.