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Potential hemophilia treatment trial - Video

Published On 2023-03-11T09:45:55+05:30  |  Updated On 11 March 2023 9:45 AM IST
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Overview

Hemophilia A is a rare bleeding disorder caused by a mutation in the gene encoding factor VIII, effectively stopping clotting activity. The condition causes repetitive bleeding into joints beginning in early childhood and can be life-threatening. Severe hemophilia A is when a person’s factor VIII level is less than one per cent of normal.

A global study involving McMaster University researchers has trialled a potential new treatment that could be a game-changer for people living with hemophilia A, a life-threatening genetic blood disorder.

Co-principal investigator Davide Matino said that once-weekly injections of efanesoctocog alfa can prevent bleeding and promote near-normal activity by the clotting agent factor VIII, crucial for stopping the prolonged bleeding caused by hemophilia A. People who took efanesoctocog alfa also enjoyed improved joint function, better overall health and less pain.

Matino said that efanesoctocog alpha works by separating factor VIII from its associated protein carrier, known as the von Willebrand Factor, thereby overriding its ‘half-life’. This means people with hemophilia A only need once-weekly instead of thrice-weekly injections.

Researchers published their findings in The New England Journal of Medicine. “With this treatment, patients with hemophilia A are free to live the lives that they want as they feel safe, protected and many of them tell me they don’t feel the daily joint pain they used to have. They may not be cured, but this treatment really is the next best thing,” said Matino, an assistant professor of the Department of Medicine.

“With only one injection for an entire week, people with hemophilia A will enjoy normal or near-normal levels of factor VIII, which is unheard of. Previously, patients had to inject every other day, which was a huge burden for them, yet obtaining a lower level of protection” he said.

“The treatments for hemophilia A have improved more in the last decade than ever before. Now we have gene therapies and editing in the pipeline, monoclonal antibody treatments and cell-based therapies.”

The trial, which concluded in 2021, found that 133 hemophilia patients treated weekly for a year improved their outcomes and quality of life compared to their previous treatment. Matino and fellow McMaster study author Alfonso Iorio said that McMaster was the only center enrolling adult patients in Canada.

“The research infrastructure and leadership we built at McMaster as a leader for the Canadian hemophilia data collection network allowed us to attract international clinical studies on innovative treatments, such as the efanesoctocog alfa trial and gene therapy,” said Alfonso Iorio, professor and director of McMaster’s hemophilia clinic.

“The patients we enrolled in this study have been using efanesoctocog alfa for several years and we are delighted that McMaster managed to offer them this treatment and thus the opportunity to enjoy a vastly better quality of life,” said Iorio.

Reference:

Von Drygalski, A., Chowdary, P., Kulkarni, R., Susen, S., Konkle, B. A., Oldenburg, J., Matino, D., Klamroth, R., Weyand, A. C., Jimenez-Yuste, V., Nogami, K., Poloskey, S., Winding, B., Willemze, A., & Knobe, K. (2023). Efanesoctocog Alfa Prophylaxis for Patients with Severe Hemophilia A. The New England Journal of Medicine,DOI: 10.1056/NEJMoa2209226.

Speakers

Isra Zaman

B.Sc Life Sciences, M.Sc Biotechnology, B.Ed

Isra Zaman is a Life Science graduate from Daulat Ram College, Delhi University, and a postgraduate in Biotechnology from Amity University. She has a flair for writing, and her roles at Medicaldialogues include that of a Sr. content writer and a medical correspondent. Her news pieces cover recent discoveries and updates from the health and medicine sector. She can be reached at editorial@medicaldialogues.in.

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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