Potential Drug Treatment for Voice Spasms Like RFK Jr.’s Condition

Researchers indicate that individuals with laryngeal dystonia (LD), a condition causing a strained and hoarse vocal quality, could potentially benefit from a medication already utilized for a sleep disorder. Some volunteers who tested sodium oxybate, a treatment for narcolepsy, reported that it alleviated their speech difficulties in a manner similar to alcohol consumption, but without inducing intoxication. Laryngeal dystonia, identified as a neurological condition involving vocal cord spasms, has garnered increased public awareness following US President-elect Donald Trump’s selection of Robert F Kennedy Jr, who lives with the condition, for his new team. US journalist and broadcaster Diane Rehm is also affected by LD. While Botox (botulinum toxin) injections are a frequent treatment for LD, they prove ineffective for as many as 40% of patients, according to researchers from the Massachusetts Eye and Ear hospital. Dr Kristina Simonyan, the lead investigator, stated: “We hear many stories of broken lives and careers from patients with laryngeal dystonia and they have been desperate for new treatments. Our trial gives us hope for a new, effective treatment that can be offered to some of these patients.” Dr Simonyan’s team opted to investigate low-dose sodium oxybate after receiving reports from some patients that their symptoms improved following the consumption of a few alcoholic beverages. Sodium oxybate is chemically identical to the inhibitory neurotransmitter gammahydroxybutyric acid (GHB), which imitates certain effects of alcohol. However, it is distinct from illicit GHB, which is a dangerous and illegal substance often misused for its euphoric properties. The researchers emphasize that their study, detailed in Annals of Neurology, utilized a carefully controlled prescription medication. Initially, 106 patients with LD were administered vodka shots. Among them, 56 patients exhibited no improvement in their symptoms, whereas the remaining 50 experienced smoother speech. Subsequently, all volunteers received either a single dose of prescribed liquid sodium oxybate medicine or a placebo. Consistent with the initial findings, the 56 patients who did not respond to alcohol showed no significant improvement with the drug, while the other group – identified as alcohol responders – did, with effects persisting for up to five hours. The researchers reported some mild side effects, including nausea and dizziness, but noted the absence of any serious adverse reactions. A larger, phase 3 study is now being initiated by the team. The researchers commented: “Our findings suggest that sodium oxybate can be taken on an as-needed basis, such as before work or a social event, so patients can tailor treatment to their own daily needs and get in control of their symptoms.” Jemma Haines, representing the Royal College of Speech and Language Therapists, stated: “Dr Simonyan’s work gives promising data for an effective alternative treatment option and future hope to our service users who suffer this debilitating communication disorder.” Dayna Ferdinadni of Dystonia UK remarked that while the study demonstrated promise, additional scrutiny is required. She elaborated: “The drug has not yet been approved by NICE [National Institute for Health and Care Excellence] or the NHS for use in treating dystonia and further rigorous evaluation is needed to assess its safety, efficacy, and long-term impact.” Ferdinadni added: “We welcome any research into dystonia, but it is crucial that new treatments undergo thorough scrutiny before being considered for widespread use.” The charity notes that the precise causes of LD are not yet entirely understood, though vocal exercises and relaxation techniques may offer assistance. Symptoms frequently manifest during midlife. Kennedy, aged 70, stated that he possessed “a very strong voice” prior to developing LD at the age of 42. He recently underwent “novel surgery” on his larynx (voice box) in Japan, which he reports has improved his voice.