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  • FDA Approves novel...

FDA Approves novel Treatment for Duchenne Muscular Dystrophy

Dr. Kamal Kant KohliWritten by Dr. Kamal Kant Kohli Published On 2024-03-22T15:30:35+05:30  |  Updated On 23 March 2024 9:59 AM IST
FDA
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Duchenne Muscular Dystrophy is a rare neurological disorder of children which causes progressive muscle weakness due to a lack of muscle protein called dystrophin. It is most common childhood form of muscular dystrophy and typically affects maDuv.Lately life expectancy for those with DMD has increased with some patients surviving beyond 30 years.

The U.S. Food and Drug Administration has approved an oral medicine Duvyzat (givinostat) for the treatment of Duchenne Muscular Dystrophy (DMD) in patients six years of age and older. Duvyzat is the first nonsteroidal drug approved to treat patients with all genetic variants of DMD. It is a histone deacetylase (HDAC) inhibitor that works by targeting pathogenic processes to reduce inflammation and loss of muscle.

The approval of opportunhas been granted to Italfarmaco S.p.A.

“DMD denies the opportunity for a healthy life to the children it affects. The FDA is committed to advancing the development of new therapies for DMD,” said Emily Freilich, M.D., director of the Division of Neurology 1, Office of Neuroscience in the FDA’s Center for Drug Evaluation and Research. “This approval provides another treatment option to help reduce the burden of this progressive, devastating disease for individuals impacted by DMD regardless of genetic mutation.”

Duvyzat’s efficacy for the treatment of DMD was evaluated in a randomized, double-blind, placebo-controlled 18-month phase 3 study. The primary endpoint was the change from baseline to month 18 using a four stair climb to measure muscle function. All participants continued to receive a standard of care steroid regimen throughout the study and, after 18 months of treatment, patients treated with Duvyzat showed statistically significant less decline in the time it took to climb four stairs compared to placebo. The mean change from baseline to Month 18 in time to climb four stairs was 1.25 seconds for patients receiving Duvyzat compared to 3.03 seconds for patients receiving placebo.

A secondary efficacy endpoint was the change from baseline to month 18 in physical function as assessed by the North Star Ambulatory Assessment (NSAA)-a scale commonly used to rate the motor function in boys with DMD who are capable of walking. Compared to placebo, patients treated with Duvyzat saw less worsening in their NSAA score after 18 months.

The most common side effects of Duvyzat are diarrhea, abdominal pain, a decrease in platelets-which can lead to increased bleeding-nausea/vomiting, an increase in triglycerides (a type of fat in the body) and fever.

The prescribing information for Duvyzat includes warnings which state that health care providers should evaluate the patient’s platelet counts and triglycerides before prescribing Duvyzat. Patients with a platelet count less than 150 x 109/L should not take Duvyzat. Platelet counts and triglycerides should be monitored as recommended during treatment to determine if changes in dosage are needed. Dosage modifications may also be needed for moderate or severe diarrhea. Duvyzat may also cause QTc prolongation, which can increase the risk for irregular heartbeats. Patients taking certain medications that also cause QTc prolongation or have certain types of heart disease should avoid taking Duvyzat.

The recommended dosage of Duvyzat is determined by the individual’s body weight. It should be administered orally twice daily with food.

The FDA granted this application priority review and fast track designation. It also received orphan drug and rare pediatric disease designations.

FDAUSFDADuvyzatgivinostatDuchenne Muscular Dystrophyneurological disordermuscle weakness
Dr. Kamal Kant Kohli
Dr. Kamal Kant Kohli

Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751

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