Category Archives: DMD
21
Chilean Rose Tarantula
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- Posted in DMD, Duchenne Muscular Dystrophy

I know this sounds crazy, but I’ve read about this about a year ago and I’ve NEVER stopped thinking about it.
Scientists are researching a protein in the Chilean Rose Tarantula’s venom that might hault the progression of Duchenne Muscular Dystrophy.
Here is the article to read:
UB-Developed Spider-Venom Drug for Muscular Dystrophy Progresses
Published October 20, 2014
A drug developed by University at Buffalo scientists from a small protein found in spider venom is moving forward as a promising treatment for Duchenne muscular dystrophy, a fatal genetic disease affecting boys.
Frederick Sachs, PhD, SUNY Distinguished Professor of physiology and biophysics, led a research team that discovered the small protein in a Chilean rose tarantula in the 1990s.
To help develop the drug, Sachs co-founded the UB spinoff firm Tonus Therapeutics with two colleagues in his department — Thomas Suchyna, PhD, research assistant professor, and Philip Gottlieb, research associate professor —along with Jeff Harvey, a local stockbroker whose grandson has Duchenne muscular dystrophy.
The GsMTx-4 protein has since been modified and chemically synthesized in the laboratory to produce AT-300, a potential therapy designed to slow the muscle deterioration that characterizes muscular dystrophy.
Sachs’ team is now studying AT-300’s effectiveness in dystrophic mice.
When these studies are completed in 2015, the researchers will apply to the U.S. Food and Drug Administration (FDA) for approval of an Investigational New Drug and the first clinical trials in humans.
The FDA has already declared the protein an “orphan drug” for muscular dystrophy, a designation recognizing promising methods of treating rare diseases.
Firm Acquires Rights, Plans to Further Hone Therapy
The biopharmaceutical company Akashi Therapeutics Inc., based in Cambridge, Mass., recently acquired the rights to the AT-300 protein from Tonus Therapeutics, bringing the therapy another step closer to reality.
“Akashi Therapeutics has the funding and resources to propel development of this new potential drug,” says UB Vice Provost Robert J. Genco, PhD, DDS. Genco oversees UB’s Office of Science, Technology Transfer and Economic Outreach (STOR), which commercializes technologies developed at the university.
Akashi aims to develop a cocktail of medications to transform Duchenne muscular dystrophy into a chronic, manageable condition.
Both Tonus and UB will receive royalties on sales of any treatments resulting from AT-300.
Sachs will continue to help oversee research and development.
Studies Show Drug Prevents Calcium Influx
In patients with dystrophy, genetic mutations weaken the membrane of muscle cells, enabling large amounts of calcium to infiltrate the cells. This sets off a chain reaction that leads to muscle degeneration.
Laboratory studies show that AT-300 stops the dangerous calcium influx by keeping mechanosensitive ion channels shut when muscle cells are stretched, says Sachs.
The protein also holds potential for preventing cardiac failure, one of the most common causes of death in dystrophic boys, he adds.
In addition, the modified form of the drug is designed to remain stable for a long time in the human body. This could mean patients would need infrequent doses, which could hold down costs.
I have a really, really strange theory…and it came over me when I FIRST read this article which was just a short headline probably 6-12 months ago. I thought….that’s so crazy! And then I thought about it for a while longer. and I had this crazy thought pop into my head.
What if…..and this is a HUGE what if….
What if GOD made it so that of the millions and millions of animals and plants, etc that are on the Earth are all here for a specific purpose and something as crazy as spider venom will help to cure something like Muscular Dystrophy. and what if all the cures to life’s most horrible and tragic diseases lies in our ability as humans and scientists to figure that out. What is other animal proteins or plant proteins, could be the answer to many other illnesses.
I know, crazy right?!
Well, it was just a thought that popped into my head and when I saw this article out today, it made me think of it all over again.
I really don’t think it’s the strangest thing….maybe, just maybe.
So, I guess that means that I better get over my HUGE fear of spiders now….right?!
Original Article HERE.
22
Finally some good news for Duchenne Patients!
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- Posted in DMD, Duchenne Muscular Dystrophy

One Life on this earth is all that we get, whether it is enough or not enough, and the obvious conclusion would seem to be that at the very least we are fools if we do not live it as fully and bravely and beautifully as we can.
– Frederick Buechner
This brave and beautiful community has demonstrated in various ways, that this one life will be well-spent, focused on changing the landscape for our children. Today was a day we don’t see nearly enough in our community – today was a victory!
This morning, Sarepta announced that its discussions with the Food and Drug Administration (FDA) over the last several months have borne fruit—the FDA has agreed to allow Sarepta to submit a New Drug Application (NDA) for eteplirsen. The company plans to submit the application by the end of this year and should have a decision from the FDA by mid-2015 about whether or not it will be approved. Over the last several years, the chances that a drug will go on to be approved after an NDA is allowed is well over 50%.
After the NDA is submitted one of the three things can happen:
- The drug can be approved outright;
- The drug could fail to be approved (and the company could decide to do a traditional phase III study, but could not sell the drug until an NDA was approved); or
- The drug could receive “accelerated approval” meaning that it would be available immediately, but the company would be required to do a confirmatory study.
To hedge its bets and generate additional data, by the end of this year the company plans to start a confirmatory study in parallel to submitting the NDA, and will also conduct separate studies with younger boys and non-ambulatory boys.
In addition to the ability to move forward with the NDA, there were several other “wins” announced by Sarepta, including the FDA’s willingness to not require a placebo arm in the confirmatory study and the willingness of the FDA to consider data generated by the confirmatory study and additional studies with eteplirsen even after the NDA is filed. The FDA also suggested that there may be a path forward to approving future exon-skipping drugs through an abbreviated process.
We believe that this evidence of flexibility on the part of the FDA is very responsive to the requirements of FDASIA 2013—the law that regulates the FDA’s funding and activities. It’s also clear that the world is changing in rare disease as advocacy organizations show themselves to be true partners in the process of drug approval, whether it by providing the FDA with expert advice, documenting benefit/risk preferences, or expressing the will of the community with a petition that is over 100,000 strong. We were particularly gratified to hear that PPMD’s policy forum played a significant role in providing the FDA with information it could use to make decisions about a path forward for eteplirsen.
As we digest this news, many of you are probably wondering what this means for other exons. The signal from the FDA that there may be a path forward for faster approval of this whole class of drugs suggests that the traditional drug approval process may be shortened in its time line. Queued up next from Sarepta are exons 53, 45, 50, 44, 52, 55, and 8, while Prosensa is working on exons 44, 45, 53, 52, and 55. Prosensa is also working on a new approach for multi-exon skipping in the regions of exons 10-30 and PPMD is funding Toshifumi Yakota of the University of Alberta to work on a multi-exon skip of the exon 45-55 region.
Families who participated in the drisapersen trial may also be wondering if their boys are eligible to participate in the planned eteplirsen studies—based on discussions with the company this morning, yes, after a six month wash-out period (when the boys are taking no drug).
Sarepta will host a webinar in the very near future and all foundations will partner. We will be happy to share your questions with Sarepta when those details are confirmed.
We congratulate Sarepta and the whole Duchenne community for the various initiatives that came together to achieve these victories. We also thank the FDA for showing flexibility while maintaining high standards that ultimately protect our children.
Today, we – the collective we – helped change the landscape, so that tomorrow our children can live their lives “fully and bravely and beautifully.”
Here’s a video of the wonderful Pat Furlong, head of Parent Project Muscular Dystrophy, announcing it:
https://www.youtube.com/watch?v=RY_XBioCijY#t=11
Article found here:
http://community.parentprojectmd.org/profiles/blogs/sarepta-announcement-faqs-1?xg_source=activity
21
What is Duchenne Muscular Dystrophy?
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- Posted in DMD, Duchenne Muscular Dystrophy

I recently had a meeting with my school district because Jackson will be entering Kindergarten and I wanted to make everyone was aware of what Duchenne is and not overwhelm them with TONS of information. I feel like little doses of information is the best way to go, so I created some handouts to give to the teachers, principal, and others he will be working with. I only put some background info about DMD and also what issues he may have pertaining to his age (6 years) this coming year. The team seemed very excited about the handouts and learning about Duchenne!
About Duchenne
Duchenne muscular dystrophy is the most common fatal genetic disorder diagnosed in childhood,
affecting approximately 1 in every 3,500 live male births (about 20,000 new cases each year).
Because the Duchenne gene is found on the X-chromosome, it primarily affects boys; however, it occurs across all races and cultures.
Duchenne results in progressive loss of strength and is caused by a mutation in the gene that encodes for dystrophin. Because dystrophin is absent, the muscle cells are easily damaged. The progressive muscle weakness leads to serious medical problems, particularly issues relating to the heart and lungs. Young men with Duchenne typically live into their late twenties. There is no cure.
Cardiac problems eventually occur with Duchenne and may start early or during the teenage years. Boys typically lose their ability to walk between the ages of 10-14 years old. By their late teens, young men lose the strength in their upper bodies, including the ability to move their arms and usually need help with breathing at night.Over time their breathing or respiratory systems weaken and they require constant support. Young men typically survive into their 20’s.
Physical symptoms
- The boy will typically move slower or with more difficulty than other children his age.
- He may appear clumsy and fall frequently, and have difficulty climbing, jumping, or running.
- Because of his muscle weakness, he will become tired more easily, or will have low energy.
- He may ask to be carried frequently, or need the use of a stroller for longer distances.
- Some of his muscles (in particular his calves) may appear enlarged or overdeveloped. This happens because muscle cells are being replaced by scar tissue.
- This process may also result in him being less flexible and having loss of elasticity in the joints (also known as contractures).
Transitional phase- 6 to 9 years old
During this time, a boy with Duchenne will have more and more difficulty walking as his quadriceps (muscles in front of the thighs) grow weaker. This causes him to be off balance as he shifts his weight while walking. He may walk on the balls of his feet or toes to stay balanced.
Trunk Weakness
In order to compensate for their weak trunks, a boy with Duchenne may stick out his belly and throw his shoulders back as he walks. When asked to stand, he will put his bottom up first and then use his arms for support by “walking” his arms up his legs until standing (Gower Maneuver).
Muscle Weakness
Although not apparent, he may begin to have heart problems requiring medication. Most have difficulty carrying books or other school materials (even when using a backpack).
Fatigue
Fatigue is very common and he may need the use of a stroller, lightweight wheelchair, or electric scooter for longer distances.