Marisa Wexler, MS, senior science writer —

Health Canada has approved Daybue (trofinetide) for the treatment of Rett syndrome in adults and children ages 2 and older who weigh at least 9 kg (about 19.8 lbs). The decision makes Daybue the first approved Rett treatment in Canada, according to its developer Acadia Pharmaceuticals.

Daybue (trofinetide) last year became the first treatment for Rett syndrome to win approval from the U.S. Food and Drug Administration (FDA), and it’s currently up for approval in Canada. Now, the company that sells it is working to get the therapy approved in other markets.

Treatment with ADH-503, an experimental oral treatment for pancreatic cancer, was found to slow disease progression and prolong survival in a mouse model of Rett syndrome, according to a study that focused on how brain immune cells may play a role in Rett. “I hope this work will ‘move…

Long-term treatment with Daybue (trofinetide) led to continual improvements among children and young adults with Rett syndrome in extension studies, with patients experiencing notable benefits in communication and other relevant issues, according to new data. Slightly more than a year ago, Daybue became the first treatment for Rett…

When clinicians have to decide whether to recommend invasive ventilation for adolescents with Rett syndrome, parental and familial support are the biggest factors in their decision, a recent study reports. Many teenagers with Rett syndrome have difficulty breathing, and clinicians for some may recommend invasive ventilation via a tracheostomy…

The U.S. Food and Drug Administration (FDA) has given a regenerative medicine advanced therapy (RMAT) designation to TSHA-102, an experimental gene therapy for Rett syndrome. RMAT is given to regenerative medicines — cell therapies, therapeutic tissues, human cell and tissue products, or any combination using such therapies or products…

The Rett Syndrome Research Trust (RSRT) is teaming up with partners in industry and academia to get ready for a study called VIBRANT, which plans to test innovative ways to measure and potentially monitor the symptoms of Rett syndrome in patients, with a focus on autonomic dysfunction. The…

The first girl with Rett syndrome has been given the experimental gene therapy TSHA-102 in a clinical trial, according to the treatment’s developer, Taysha Gene Therapies. “Dosing the first pediatric patient with Rett syndrome marks an important step forward in our efforts to broaden the clinical evaluation…

Treatment with Anavex 2-73 (blarcamesine) led to improvements in behavior among children with Rett syndrome in a Phase 2/3 clinical trial — but the extent of these gains was not significantly different from improvements seen in patients given a placebo. Those are the top-line findings of the EXCELLENCE…

Rett syndrome is marked by unusually low levels of LAT1, a protein that’s needed to move amino acids — the building blocks of proteins — into the brain. That’s according to the study, “Metabolic characterization of neurogenetic disorders involving glutamatergic neurotransmission,” published in the Journal of Inherited…