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Rachel V Thomas

Narcolepsy: US FDA Approves First-Ever Pill That Targets Root Cause of Rare Sleep Disorder

Narcolepsy: US FDA Approves First-Ever Pill That Targets Root Cause of Rare Sleep DisorderM (20)

The US Food and Drug Administration (FDA) has approved Orzeyful (oveporexton), the first oral treatment for adults with <a href="https://www.healthandme.com/health/narcolepsy">narcolepsy</a> type 1 that targets the underlying cause of the disorder rather than just managing its symptoms.

Developed by <a href="https://www.healthandme.com/health-news/indias-first-approved-dengue-vaccine-takedas-qdenga-protects-against-all-four-virus-serotypes-article-155137910" data-type="tilCustomLink">Takeda</a>, Orzeyful is the first approved therapy to act on the orexin system, restoring the signaling lost in people with <a href="https://www.healthandme.com/health/narcolepsy">narcolepsy</a> type 1. Existing treatments primarily help control symptoms such as excessive daytime sleepiness or cataplexy but do not address the disease mechanism.

Narcolepsy type 1 is a rare, lifelong neurological disorder that affects the brain's ability to regulate sleep and wakefulness. It impacts about 1 in 2,000 people in the United States.

The condition occurs when brain cells that produce orexin—a neurotransmitter essential for maintaining wakefulness, regulating sleep, and controlling muscle tone—are lost.

Common symptoms include:

<ul><li>Excessive daytime sleepiness</li><li>Cataplexy (sudden muscle weakness triggered by strong emotions)</li><li>Sleep paralysis</li><li>Hallucinations during the transition between sleep and wakefulness</li><li>Disrupted nighttime sleep</li></ul>

Also read: <a href="https://www.healthandme.com/health-news/fda-approves-modernas-first-mrna-flu-vaccine-marking-a-milestone-in-influenza-prevention-article-155318998" data-type="tilCustomLink">FDA Approves Moderna's First mRNA Flu Vaccine, Marking A Milestone In Influenza Prevention</a>

Orzeyful is a twice-daily oral tablet that activates the orexin receptor, helping restore the missing orexin signaling in patients with narcolepsy type 1.

Unlike stimulants or sedatives that only relieve symptoms, the drug targets the biological cause of the disorder.

The FDA approval was supported by two randomized, double-blind, placebo-controlled Phase III studies involving 273 adults with narcolepsy type 1 over 12 weeks.

Patients treated with Orzeyful 2 mg experienced:

<ul><li>Improved ability to stay awake during the day</li><li>Reduced excessive daytime sleepiness</li><li>Fewer cataplexy episodes</li><li>Improvements in sleep paralysis</li><li>Reduced hallucinations during sleep-wake transitions</li><li>Better nighttime sleep quality</li></ul>

The most commonly reported side effects were:

<ul><li>Insomnia</li><li>Increased urinary frequency</li><li>Urinary urgency</li><li>Increased saliva production</li></ul>

Read More: <a href="https://www.healthandme.com/health-news/ebola-outbreak-moderna-begins-first-human-trial-of-bundibugyo-vaccine-as-cases-rise-to-3748-article-155287057" data-type="tilCustomLink">Ebola Outbreak: Moderna Begins First Human Trial Of Bundibugyo Vaccine As Cases Rise to 3,748</a>

Few participants discontinued treatment because of side effects.

Orzeyful should not be taken with strong CYP3A inhibitors, and its safety and effectiveness have not been established in patients under 18 years of age.

The FDA has recommended scheduling the drug under the Controlled Substances Act. It can be commercially launched once the US Drug Enforcement Administration (DEA) completes the scheduling process.

According to an analysis by marketing firm Global Data:

<ul><li>An estimated 735,082 people were living with diagnosed narcolepsy worldwide in 2024, with cases projected to rise to 761,297 by 2029.</li><li>Generic medicines, with limited innovative therapies available, dominate the current narcolepsy treatment market.</li><li>The development pipeline includes 28 drug candidates, comprising five Phase III and four Phase II assets, with no therapies currently in the pre-registration stage.</li><li>More than 115 clinical trials have been conducted in narcolepsy over the past decade.</li></ul>

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Narcolepsy

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US FDA

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narcolepsy type 1

neurological disorder

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The US Food and Drug Administration (FDA) has approved Orzeyful (oveporexton), the first oral treatment for adults with narcolepsy type 1 that targets the underlying cause of the disorder rather than just managing its symptoms.Developed by Takeda, Orzeyful is the first approved therapy to act on the orexin system, restoring the signaling lost in people with narcolepsy type 1. Existing treatments primarily help control symptoms such as excessive daytime sleepiness or cataplexy but do not address the disease mechanism.What Is Narcolepsy Type 1? Narcolepsy type 1 is a rare, lifelong neurological disorder that affects the brain's ability to regulate sleep and wakefulness. It impacts about 1 in 2,000 people in the United States.The condition occurs when brain cells that produce orexin—a neurotransmitter essential for maintaining wakefulness, regulating sleep, and controlling muscle tone—are lost.Common symptoms include:Excessive daytime sleepinessCataplexy (sudden muscle weakness triggered by strong emotions)Sleep paralysisHallucinations during the transition between sleep and wakefulnessDisrupted nighttime sleepAlso read: FDA Approves Moderna's First mRNA Flu Vaccine, Marking A Milestone In Influenza Prevention How Does Orzeyful Work? Orzeyful is a twice-daily oral tablet that activates the orexin receptor, helping restore the missing orexin signaling in patients with narcolepsy type 1.Unlike stimulants or sedatives that only relieve symptoms, the drug targets the biological cause of the disorder.Clinical Trial FindingsThe FDA approval was supported by two randomized, double-blind, placebo-controlled Phase III studies involving 273 adults with narcolepsy type 1 over 12 weeks.Patients treated with Orzeyful 2 mg experienced:Improved ability to stay awake during the dayReduced excessive daytime sleepinessFewer cataplexy episodesImprovements in sleep paralysisReduced hallucinations during sleep-wake transitionsBetter nighttime sleep qualitySafety And Side EffectsThe most commonly reported side effects were:InsomniaIncreased urinary frequencyUrinary urgencyIncreased saliva productionRead More: Ebola Outbreak: Moderna Begins First Human Trial Of Bundibugyo Vaccine As Cases Rise to 3,748 Few participants discontinued treatment because of side effects.Orzeyful should not be taken with strong CYP3A inhibitors, and its safety and effectiveness have not been established in patients under 18 years of age.The FDA has recommended scheduling the drug under the Controlled Substances Act. It can be commercially launched once the US Drug Enforcement Administration (DEA) completes the scheduling process.Narcolepsy Treatment LandscapeAccording to an analysis by marketing firm Global Data:An estimated 735,082 people were living with diagnosed narcolepsy worldwide in 2024, with cases projected to rise to 761,297 by 2029.Generic medicines, with limited innovative therapies available, dominate the current narcolepsy treatment market.The development pipeline includes 28 drug candidates, comprising five Phase III and four Phase II assets, with no therapies currently in the pre-registration stage.More than 115 clinical trials have been conducted in narcolepsy over the past decade.

narcolepsy: us fda approves first-ever pill that targets root cause of rare sleep disorder

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Narcolepsy: US FDA Approves First-Ever Pill That Targets Root Cause of Rare Sleep Disorder

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Narcolepsy: US FDA Approves First-Ever Pill That Targets Root Cause of Rare Sleep Disorder

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