Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Enzyme replacement therapy found to effectively treat patients with Fabry disease

25.10.2002


Raul Hernandez was no stranger to sports activity, and was active in Little League by the time he was 10 years old. But one day while running a short race at school, Raul experienced an intense burning sensation in his feet that turned his world upside down. From that day forward, he would experience severe pain in his feet any time he engaged in physical activity or, strangely, when the weather was hot or it rained. The situation worsened when the pain spread to his hands. His doctors, however, were unable to find anything wrong with him, telling his parents that the pain was all in his mind.



Seventeen years later, Raul was officially diagnosed with Fabry disease – a rare genetic disorder that causes severe pain in the hands and feet, eventually destroying vital organs in the body. Yet even after Raul was diagnosed, no therapy was available to treat the disease. It was not until two-and-a-half years ago that Raul learned that a clinical trial at Cedars-Sinai Medical Center was testing a new drug designed to replace the enzyme that he was missing. The next thing he knew, he was on a plane to Los Angeles from his hometown in Salinas, California to take part in the clinical trial. Since then, Raul commutes every two weeks to receive treatment. He says that he is once again exercising without pain and leads as normal life as anyone else.

An update of the clinical trial at Cedars-Sinai Medical Center and at 19 other centers throughout the country and Europe, was presented this month at the annual meeting of the American Society of Human Genetics in Baltimore, Maryland by William Wilcox, M.D., Ph.D., a medical geneticist at Cedars-Sinai. The findings show that patients receiving enzyme replacement therapy for a near-two-year period via infusion with a drug called r-haGAL (FabrazymeTM) continue to benefit from reduced pain and prevention of further organ damage.


"This study essentially confirms the long-term safety and effectiveness of enzyme replacement therapy for patients with Fabry," said Dr. Wilcox.

Named Fabry disease after the dermatologist who first noted the symptoms back in the 19th century, it was only recently discovered that the disease is an inherited disorder caused by the lack of a particular enzyme called a-galactosidase A or a-GAL. The enzyme is needed to break down a fatty substance in cells called globotriaosylceramide or GL-3. But when a-GAL is lacking, GL-3 builds up in blood vessel walls and does increasing damage to organs such as the heart, kidney and brain. By the time that the disease is diagnosed, the organs have often sustained damage, ultimately leading to an early death.

"Raul’s bout with the disease is similar to many other patients with Fabry, as even now, the disease is often undiagnosed until adulthood when organs have started being affected," said Dr. Wilcox. "Now we have a drug that replaces the deficient enzyme so that patients can live longer and better."

In the study, Raul was one of 58 patients selected at random to receive r-haGAL or a placebo by infusion every two weeks for a 20-week period. After completing 20 weeks of the study, all 58 patients have been receiving an infusion of r-haGAL every two-weeks for over 18 months. Patients’ response to the drug was monitored via kidney and heart function tests. Tissue biopsies were also performed to assess organ function and a specialized questionnaire was used to assess patient pain levels. The investigators found that pain was significantly improved overall, while pathology studies confirmed that GL-3, or the fatty substance in cells, was consistently reduced throughout the study period. Kidney function remained stable throughout treatment during the 18-month period indicating that the disease was not causing further damage.

Although the investigators found that the majority of patients began producing antibodies in response to the drug after a three-month period, this did not impact the continued effectiveness or safety of the drug.

"Interestingly, we found that enzyme replacement therapy continues to unplug blood vessels despite the presence of antibodies," commented Dr. Wilcox.

As one of the first patients to participate in the clinical trial, Raul says the treatment has changed his life. He can exercise and doesn’t have to worry about the weather.

Kelli Stauning | Cedars-Sinai Medical Center
Further information:
http://www.csmc.edu/

More articles from Health and Medicine:

nachricht Custom-tailored strategy against glioblastomas
26.09.2016 | Rheinische Friedrich-Wilhelms-Universität Bonn

nachricht New leukemia treatment offers hope
23.09.2016 | King Abdullah University of Science and Technology

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: First-Ever 3D Printed Excavator Project Advances Large-Scale Additive Manufacturing R&D

Heavy construction machinery is the focus of Oak Ridge National Laboratory’s latest advance in additive manufacturing research. With industry partners and university students, ORNL researchers are designing and producing the world’s first 3D printed excavator, a prototype that will leverage large-scale AM technologies and explore the feasibility of printing with metal alloys.

Increasing the size and speed of metal-based 3D printing techniques, using low-cost alloys like steel and aluminum, could create new industrial applications...

Im Focus: New welding process joins dissimilar sheets better

Friction stir welding is a still-young and thus often unfamiliar pressure welding process for joining flat components and semi-finished components made of light metals.
Scientists at the University of Stuttgart have now developed two new process variants that will considerably expand the areas of application for friction stir welding.
Technologie-Lizenz-Büro (TLB) GmbH supports the University of Stuttgart in patenting and marketing its innovations.

Friction stir welding is a still-young and thus often unfamiliar pressure welding process for joining flat components and semi-finished components made of...

Im Focus: First quantum photonic circuit with electrically driven light source

Optical quantum computers can revolutionize computer technology. A team of researchers led by scientists from Münster University and KIT now succeeded in putting a quantum optical experimental set-up onto a chip. In doing so, they have met one of the requirements for making it possible to use photonic circuits for optical quantum computers.

Optical quantum computers are what people are pinning their hopes on for tomorrow’s computer technology – whether for tap-proof data encryption, ultrafast...

Im Focus: OLED microdisplays in data glasses for improved human-machine interaction

The Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP has been developing various applications for OLED microdisplays based on organic semiconductors. By integrating the capabilities of an image sensor directly into the microdisplay, eye movements can be recorded by the smart glasses and utilized for guidance and control functions, as one example. The new design will be debuted at Augmented World Expo Europe (AWE) in Berlin at Booth B25, October 18th – 19th.

“Augmented-reality” and “wearables” have become terms we encounter almost daily. Both can make daily life a little simpler and provide valuable assistance for...

Im Focus: Artificial Intelligence Helps in the Discovery of New Materials

With the help of artificial intelligence, chemists from the University of Basel in Switzerland have computed the characteristics of about two million crystals made up of four chemical elements. The researchers were able to identify 90 previously unknown thermodynamically stable crystals that can be regarded as new materials. They report on their findings in the scientific journal Physical Review Letters.

Elpasolite is a glassy, transparent, shiny and soft mineral with a cubic crystal structure. First discovered in El Paso County (Colorado, USA), it can also be...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Call for Paper – Panacea Green Infrastructure?

30.09.2016 | Event News

HLF: From an experiment to an establishment

29.09.2016 | Event News

European Health Forum Gastein 2016 kicks off today

28.09.2016 | Event News

 
Latest News

First-Ever 3D Printed Excavator Project Advances Large-Scale Additive Manufacturing R&D

30.09.2016 | Materials Sciences

New Technique for Finding Weakness in Earth’s Crust

30.09.2016 | Earth Sciences

Cells migrate collectively by intermittent bursts of activity

30.09.2016 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>