What symptoms should we monitor for Rett syndrome?
- Rett syndrome typically progresses through recognized stages, and the symptoms present can vary by stage. In early childhood, families may notice slowing of development, reduced eye contact, or diminishing interest in toys and play.
- The hallmark features of Rett syndrome include loss of purposeful hand use, development of repetitive hand movements (such as wringing, squeezing, or clapping), loss of spoken language, and changes in walking and balance.
- Breathing irregularities are common and may include episodes of hyperventilation, breath holding, or irregular breathing patterns, particularly when awake.
- Seizures occur in a majority of individuals with Rett syndrome and can take many forms. They may be difficult to distinguish from the breath-holding or staring episodes that are also common in Rett syndrome, which is why monitoring with your neurologist is important.
- Some individuals with Rett syndrome have a change in heart rhythm called a prolonged QT interval, which shows up on a heart tracing (EKG) and is monitored periodically.
- Scoliosis (curvature of the spine) is common.
- Sleep disturbances, gastrointestinal issues (including constipation and feeding difficulties), and anxiety-like behaviors are also frequently reported by families.
What is the expected progression of Rett syndrome?
- Most children with Rett syndrome appear to develop typically in early infancy, then enter a period of regression, usually between 6 months and 18 months of age, during which previously acquired skills such as purposeful hand use and spoken language are lost. This regression is one of the hallmarks of the diagnosis and is often what prompts families to seek evaluation.
- After this regression phase, most children enter a period of stabilization. While many challenges remain lifelong, the condition does not continue to worsen in the same way after this stage, and many individuals with Rett syndrome live into adulthood.
What treatments are available for Rett syndrome?
- In 2023, the FDA approved trofinetide (brand name Daybue) for the treatment of Rett syndrome in individuals age 2 and older, making it the first drug specifically approved for this condition. Trofinetide works by supporting brain signaling pathways affected by MECP2 dysfunction. It is taken orally and has been shown in clinical trials to reduce symptom severity. Side effects include diarrhea and weight loss, which your child's neurologist can help manage.
- Seizures in Rett syndrome are typically treated with anti-seizure medications. Because seizures in Rett syndrome can be challenging to control, a neurologist experienced with the condition is important for guiding medication choices.
- Beyond medication, treatment is largely supportive and multidisciplinary, including physical therapy, occupational therapy, and speech-language therapy, (see Section 3). These therapies do not treat the underlying condition but can meaningfully support function and quality of life.
- Research into additional treatments, including gene therapy approaches targeting MECP2, is actively ongoing. Staying connected to the Rett syndrome research community (see Section 5) is one of the best ways to stay informed about emerging options.
What healthcare providers should be on my child’s care team for Rett syndrome?
Your child’s Rett syndrome care team is the group of providers who work together to support your child's health, development, and quality of life.
Rett syndrome affects multiple body systems. Your child may benefit from specialists beyond neurology—such as a cardiologist (for heart rhythm monitoring), an orthopedic surgeon or physiatrist (for scoliosis and mobility), a gastroenterologist (for feeding and GI issues), a pulmonologist (for breathing irregularities), or a communication specialist. Ask your doctor which specialists should be part of your child's care.
Geneticists, doctors who specialize in genetic disorders, are often very good at managing care for patients with complex rare diseases.
Therapeutic providers, such as a physical therapist (mobility and motor skills), occupational therapist (daily living skills and fine motor development), speech-language pathologist (communication and feeding), or behavioral therapist (supporting emotional regulation and adaptive behavior), are equally important members, supporting your child's development, communication, and daily functioning. Ask your doctor which providers make sense for your child's specific needs. For a deeper look at therapeutic services and how to access them, see Section 3.
Finding clinical trial opportunities & supporting research into Rett syndrome
When you participate in research, you help your child and other families in the future. Medical research studies can be very different from each other. Some test new treatments, while others are "natural history studies" that just collect information about a disease’s impact over time.
Clinical trials are research studies that help doctors find new treatments. Some trials test new medicines or therapies that aren't available yet. Even if you may choose not to participate, it can be good to know what options exist for your child's condition.
Gene therapy is an approach that aims to address the root cause of a genetic condition by delivering a working copy of the affected gene directly into cells. For Rett syndrome, this means introducing a functional copy of the MECP2 gene with the goal of restoring normal protein production in the brain. As of March 2026, several investigational gene therapies for Rett syndrome are currently in clinical trials, and early results have shown encouraging signs of improvement in areas like motor skills, communication, and seizure activity. These therapies are not yet FDA-approved, and more research is needed before they would be available outside of a clinical trial setting. As with any emerging treatment, there are also risks being actively studied, and results will continue to evolve.
If you are interested in whether your child might be eligible to participate in a gene therapy trial, your child's neurologist or a patient advocacy group can help you understand what studies are currently open and whether your child may qualify.
Natural history studies are designed to help researchers learn more about the condition. This information is important for creating future treatments. Traditional natural history studies can involve additional medical appointments over the course of several years.
Citizen Health runs a natural history study for families affected by Rett syndrome. By joining and choosing to share your child's health information, you contribute directly to research while also receiving alerts about relevant studies and clinical trials. Your family's real-world experiences matter — they help researchers identify patterns and accelerate progress toward new treatments. Sign up to join the Citizen Health Rett syndrome community here.
Patient registries collect health information from people with specific diseases to help research move faster and connect families with clinical trials. Registries also show researchers and drug companies that families are engaged and want to help develop new treatments, which can bring more funding and research attention to a disease. Some diseases have more than one registry you can join. Patient Advocacy Groups typically establish and maintain patient registries for specific rare diseases. (See Section 5 below to learn more).
Organizing and maintaining your child’s medical records for Rett syndrome
Rare disease patients see many different doctors, often across different medical and technological systems that may not talk to each other. Unfortunately, that means the burden often falls on caregivers to track care holistically, identify “gaps,” and make sure nothing gets missed. Keeping your records as organized and centralized as you can from early on is likely to improve your ability to manage your child’s care down the road.
You can start by creating a one-page sheet with your child's diagnosis, current medications, allergies, and emergency contacts. Bring this sheet to every appointment. It can really help in emergencies or when you see a new doctor.
Many caregivers establish one (or several) records binder(s) in which they keep track of appointments, medication updates, symptoms, and other ongoing medically relevant information.
We also encourage caregivers to consider Citizen Health’s free tools for centralizing, managing, accessing, and extracting key information from health records. Our system will collect all your health records, across doctors and health systems, making them available on our secure online platform that can provide answers in real time based on questions you ask (like “What medications has my child been prescribed in the past year?” or “When did we last see an orthopedist?”)
As a company built by rare disease caregivers, we aim to overcome the need for physical records binders. But ultimately the important question is what works for you and your family.