Treatment and Intervention Recommendations for Fragile X

A family of a mom, dad, and two young adult sons. All wearing NFXF conference t-shirts.

The NFXF’s family-friendly Treatment Recommendations are in-depth documents developed by NFXF staff, members of the NFXF’s Fragile X Clinical & Research Consortium (FXCRC), and other Fragile X professionals, and reviewed and edited by the entire FXCRC.

The professionals who are part of the National Fragile X Foundation’s Fragile X Clinical & Research Consortium (FXCRC) regularly review and update, as needed, the Fragile X treatment recommendations.

Jump to Recommendations

About the Recommendations

Professional Consensus vs. Evidence-Based Recommendations

Consensus-based recommendations develop over time, as people work with more and more children and more and more adults for a consensus to develop what works and what doesn’t. In many ways, consensus is synonymous with “professional opinion.” Coming to consensus takes time and thoughtfulness, involving much discussion and a critical review of the literature that already exists regarding the intervention.

Over time, and thanks to the early support of the FXCRC by the Centers for Disease Control (CDC), and their later support of the ongoing FORWARD Project (a longitudinal, natural history study of Fragile X syndrome), some of the newly edited documents about Fragile X syndrome will include evidence-based recommendations. These are recommendations that are based on the information collected from all the families who participate in FORWARD and other scientific research.

Using the Recommendations

The treatment and intervention recommendations are written by professionals and include input from multiple Fragile X specialists including parents and other caregivers. The documents are not formal scientific papers and, in most instances, do not include references and citations in the same way as those written for scientific journals. As needed, links are included to any relevant scientific papers as well as other, related treatment recommendations. The recommendations are published online by the NFXF to be read by parents, caregivers and other family members (and in the case of some documents, by patients), and shared with their own care professionals including doctors, therapists, educators and counselors.

Treatment Recommendations

Updated: April 2025
Published: June 2011

Sleep problems can be more frequent in children with developmental disabilities, including Fragile X syndrome. Ongoing support can play an important role. Depending on the presentation and primary disorder, treatment may include behavioral, pharmaceutical, and surgical interventions.

Or open as a PDF:

English

Updated: March 2025
Published: June 2011

All women diagnosed with primary ovarian insufficiency should undergo testing for the Fragile X premutation, even if they have no family history. Since not all women with the premutation will develop FXPOI, itʼs crucial to identify risk factors that can help predict its onset.

Or open as a PDF:

English,

Spanish

Updated: October 2012
Published: June 2011

Multiple associated physical problems can occur with FXS, mostly related to loose connective tissue.

Or open as a PDF:

English

Updated: July 2023
Published: July 2023

What does language development look like for individuals with FXS? We discuss receptive language (what is understood), expressive language (how an individual communicates), pragmatics (how language is used), and speech (how sounds and words are produced).

Or open as a PDF:

English

Updated: May 2021
Published: May 2021

Taken together, the clinical assessment of individuals with FXS must be comprehensive, accommodate the unique aspects and range of the FXS phenotype, and utilize tools that are appropriate (feasible, scorable, and valid) for use in FXS and commensurate with their developmental level.

Or open as a PDF:

English

Updated: October 2022
Published: October 2022

This article addresses mosaicism in Fragile X syndrome, though it should be noted that mosaicism is observed in many genetic conditions. In FXS, both “size” and “methylation” mosaicism are seen.

Or open as a PDF:

English

Updated: April 2022
Published: June 2011

Based on study data, 12% of people with Fragile X syndrome have seizures, and treatment and management are similar to seizure treatment in other conditions associated with seizures. They are easily controlled in Fragile X syndrome and most patients grow out of their seizures before their 20s.

Or open as a PDF:

English

Updated: December 2021
Published: June 2011

Assessment of individuals with FXS has numerous challenges, ranging from choice and limitations of instruments to behavioral and emotional factors in the individual that may impact the testing process to scoring and interpretation. Fortunately, decades of research and clinical experience related to assessment have provided very useful guidance.

Or open as a PDF:

English

Updated: December 2021
Published: December 2021

There are many new issues to address as an individual with FXS becomes an adult. Services can vary widely from state to state and even vary within a state, so it is up to the parents or providers to find what is available and to set up the daily schedule for or with the person with FXS.

Or open as a PDF:

English

Updated: June 2021
Published: March 2018

Therapy for FXTAS aims to reduce symptoms and eventually slow the progression of the disease.

Or open as a PDF:

English,

Spanish

Updated: February 2021
Published: January 1970

Medications are, at times, helpful to facilitate the individual’s ability to attain optimal life skills and allow for better integration into educational, adult, and social environments.

Or open as a PDF:

English,

Spanish

Updated: December 2020
Published: November 2014

Clarification on how the ASD diagnosis and FXS do and do not overlap. Understanding this distinction can be particularly helpful for genetic counseling and deciding on the most appropriate interventions.

Or open as a PDF:

English

Updated: August 2019
Published: August 2012

Information on legal educational policies and recommendations, plus strategies and supports that have proven successful for academic and adaptive functioning.

Or open as a PDF:

English

Updated: January 2019
Published: August 2012

For all children within the early childhood age range of birth to 5 years and especially for young children with identified disabilities associated with a diagnosis like Fragile X syndrome (FXS), inclusive, nurturing, and developmentally appropriate environments and caregiving are essential to growth and development.

Or open as a PDF:

English

Updated: December 2018
Published: June 2011

The most common behavioral challenges seen in FXS include those associated with generalized anxiety, social interaction difficulties, ADHD, self-injury, and aggression.

Or open as a PDF:

English,

Spanish

Updated: November 2018
Published: August 2012

By using legal guidelines such as IDEA and implementing promising vocational, educational, and life skills training practices, students with FXS can be better prepared for a successful transition into adulthood.

Or open as a PDF:

English

Updated: October 2018
Published: August 2012

A basic framework for understanding different aspects of the educational system and an overview of the terminology. We also have resources for each level of the education system.

Or open as a PDF:

English

Updated: March 2018
Published: June 2011

Genetic counseling includes family and medical histories to assess the chance of carriers (premutations) throughout a family’s lineage.

Or open as a PDF:

English

Updated: December 2019
Published: August 2011

Toilet training is a characteristic area of stress for families with a child affected by FXS. Training strategies regarding when intensive toilet training techniques must be applied are based on which patients are most at risk for late toilet training.

Or open as a PDF:

English

Updated: May 2014
Published: May 2014

Sensory-based hyperarousal is the most prevalent, troubling, and defining characteristic in Fragile X. Learning to manage hyperarousal proactively allows people to grow into themselves, not out of the problem.

Or open as a PDF:

English

Updated: October 2012
Published: June 2011

If a family is considering complementary, alternative, or integrative therapies, we strongly recommend that they review the treatment under consideration with the physician in charge of managing the child’s FXS symptoms.

Or open as a PDF:

English

Updated: October 2012
Published: June 2011

Teaching individuals with Fragile X syndrome personal stress-reducing strategies, such as “square breathing,” muscle relaxation techniques, and visualization of tranquil places can help them cope with unavoidable exposures to stimulation. Learn more about this plus other current treatment recommendations.

Or open as a PDF:

English