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Deflazacort over prednisone/prednisolone?

Here’s the latest news from PTC Therapeutics about Deflazacort (EMFLAZA®). A publication of data in Muscle & Nerve comparing the efficacy and safety of deflazacort and prednisone/prednisolone from the placebo arm of the ACT DMD study has been published in Muscle & Nerve. Enjoy reading and thank you for sharing these articles within the DMD community.

 

The results demonstrated a clinically differentiated benefit of deflazacort over prednisone/prednisolone in slowing disease progression as measured using physical function endpoints and the time to delay loss of ambulation. Duchenne muscular dystrophy patients treated with deflazacort had notably less decline from baseline in 6-minute walk distance at Week 48 than those treated with prednisone/prednisolone.

 

Stuart W. Peltz, Ph.D. Chief Executive Officer of PTC Therapeutics, Inc. said:

 

“This publication supports the benefit of deflazacort in slowing the progression of Duchenne compared to other corticosteroids,”

“The data indicates that deflazacort should be the standard of care for all patients with Duchenne. The availability of deflazacort, a treatment that has the potential to alter the natural history of Duchenne, supports the need for early diagnosis in patients with this disease.”

 

What is Deflazacort

Deflazacort is a corticosteroid that works through receptors in the body to effectively inhibit inflammation.

Clinical studies demonstrated that Emflaza:

  • delayed the loss of muscle strength of Duchenne patients
  • improved the ability to accomplish tasks related to standing, climbing stairs, to run or walk 30 feet
  • Slowed the loss of muscle strength over time

More on Emflaza.com

 

Access Deflazacort in Canada

In Canada, eligible patients can ask to receive deflazacort through a Special Access Program (SAP). This Health Canada program enables doctors to prescribe a drug not approved for sale or distribution in Canada to patients with a severe or life-threatening disease that has no other viable treatment.  Special Access Programme

 

About PTC Therapeutics

PTC Therapeutics was one of the first pharmaceutical companies to develop a treatment for Duchenne muscular dystrophy (DMD). Developing ataluren (Translarna™), a treatment that works on a nonsense mutation in the dystrophin gene took 20 years. When PTC started its research, there was no North Star Ambulatory Assessment (NSAA), a mobility test that measures the results of treatment. The company began with a blank sheet. Its hard work and persistence encouraged other pharmaceutical companies to jump in and investigate new therapies for DMD. More at About PTC (vloglaforcedmd.com)

 

 

More interesting link

Ptc Therapeutics announces publication data demonstrating he Clinical Differentiated Benefit of Deflazacort: News Releases (ir.ptcbio.com)

Effects of Deflazacort Versus Prednisone on Bone Mass, Body Composition, and Lipid Profile: A Randomized, Double-Blind Study in Kidney Transplant Patients: Effects of Deflazacort Versus Prednisone (academic.oup.com)

A Comparison of the Effects of Deflazacort and Prednisone Versus Placebo on Timed Functional Tests in Boys with Duchenne Muscular Dystrophy: A Comparison of the Effects of Deflazacort (n.neurology.org)

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Negative opinion for EXONDYS® in Europe

 

Here’s the latest news from Sarepta Therapeutics press release about EXONDYS® (eteplirsen). EXONDYS® (eteplirsen) is designed to treat patients with Duchenne muscular dystrophy (DMD) amenable to skipping exon 51 of the dystrophin gene. Enjoy reading and thank you for sharing these articles within the DMD community.

 

Sarepta receives negative CHMP opinion for EXONDYS® (eteplirsen) in Europe

Sarepta Therapeutics, Inc., announced that the Committee for Medicinal Products for Human Use (CHMP) of the European Medicines Agency (EMA) had adopted a negative opinion for EXONDYS® (eteplirsen).

 

Request for re-examination

Sarepta will request a re-examination of the opinion, which will result in the assignment of a new rapporteur and co-rapporteur. The company will also request a Scientific Advisory Group (SAG) on DMD to be called so that neuromuscular specialists experienced with working on treatments for these patients can provide expert guidance and insight into, among other things, the validity of the external controls used and the importance of certain functional endpoints, including, for instance, the relevance of meaningful slowing pulmonary decline in patients with this difficult to treat disease. The re-examination process is expected to be completed by year-end 2018.

 

EXONDYS® a treatment using the exon-skipping technique

This treatment uses a specific exon-skipping technique to jump over a portion of genetic machinery that produces a non-working, mutated form of dystrophin in children with DMD. It aims to restore the machinery’s ability to read genetic code, so it can produce a less mutated form of dystrophin that works in children with DMD.

The production of partly functional dystrophin may delay muscle destruction and extend mobility in children with this devastating, rare disease. More specifically, Exondys 51 (eteplirsen) triggers the skipping of exon 51, which occurs in 13% of children with DMD.

 

About DMD

Duchenne muscular dystrophy (DMD) is a disease that almost exclusively affects boys and whose incidence is 1 in 3,500. It is extremely rare that Duchenne muscular dystrophy (DMD) will affect girls. Those affected are usually diagnosed around the age of five, but symptoms may be visible from early childhood. It is a degenerative disease of the muscles caused by a genetic mutation. The Duchenne muscular dystrophy (DMD) – for which no treatment is currently available – directly affects skeletal muscles. Without treatment, the consequences of the disease are dire for those afflicted and their families.

 

More interesting link:

Please visit: www.sarepta.com

Video Professor Georges Dickson

Press Release

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Solid Biosciences announces new preclinical data about gene transfer

 

One of the objectives of our team is to inform you about new treatments. Here’s the latest news from a recent Solid Bioscience press release about SGT-001, the Company’s lead microdystrophin gene transfer candidate. Enjoy reading and thank you for sharing these articles within the DMD community.

 

Solid Biosciences announces new preclinical data at the American Society of Gene and Cell Therapy Annual Meeting

Solid Biosciences Inc. announced new preclinical data from its gene therapy development programs for Duchenne muscular dystrophy (DMD). New data for SGT-001 further demonstrate its potential to produce long-term and body-wide microdystrophin expression that correlates with significant improvements in muscle function.

 

“Solid remains steadfast in our mission to bring important therapies to patients with DMD, where a significant unmet need exists. These data further support the investigation of SGT-001 as a potential new treatment option for those living with this devastating disease, as well as reinforce our commitment to advancing cutting-edge innovations through our next generation gene therapy pipeline,” said Carl Morris, Ph.D., Chief Scientific Officer of Solid Biosciences.

 

 

About SGT-001

SGT-001 is a novel adeno-associated virus* (AAV) vector-mediated gene transfer under investigation for its ability to address the underlying genetic cause of DMD. SGT-001 is a systemically administered* candidate that delivers a synthetic dystrophin gene, called microdystrophin, to the body. This microdystrophin encodes for a functional protein surrogate that is expressed in muscles and stabilizes essential associated proteins.

  • Adeno-associated virus > is a small virus which infects humans and some other primate species. Link
  • Systemically administered > Systemic forms of administration affect the whole body (in general).

Data from Solid’s preclinical program suggests that SGT-001 has the potential to slow or stop the progression of DMD, regardless of genetic mutation or disease stage. SGT-001 is based on pioneering research in dystrophin biology by Dr. Jeffrey Chamberlain of the University of Washington and Dr. Dongsheng Duan of the University of Missouri.

 

Status

SGT-001 has been granted Rare Pediatric Disease Designation or RPDD in the United States and Orphan Drug Designation in both the United States and European Union. The Phase I/II clinical trial for SGT-001, IGNITE DMD, is currently on clinical hold. Microdystrophin gene transfer trial on hold

 

About Solid Biosciences

Solid Biosciences is a life science company focused solely on finding meaningful therapies for Duchenne muscular dystrophy (DMD). Founded by people touched by the disease, Solid Biosciences is a center of excellence for DMD, bringing together experts in science, technology and care to drive forward a portfolio of candidates that have life-changing potential. Currently, Solid Biosciences is progressing from programs across four scientific platforms: corrective therapies, disease-modifying therapies, disease understanding and assistive devices. For more information, please visit this website: www.solidbio.com.

 

About DMD

Duchenne muscular dystrophy (DMD) is a disease that almost exclusively affects boys and whose incidence is 1 in 3,500. It is extremely rare that Duchenne muscular dystrophy (DMD) will affect girls. Those affected are usually diagnosed around the age of five, but symptoms may be visible from early childhood. It is a degenerative disease of the muscles caused by a genetic mutation. The Duchenne muscular dystrophy (DMD) – for which no treatment is currently available – directly affects skeletal muscles. Without treatment, the consequences of the disease are dire for those afflicted and their families.

 

To know more

SOLID BIOSCIENCES INITIATES CLINICAL TRIAL FOR GENE TRANSFER

GLOBE NEWSWIRE: Solid-Biosciences-Announces-New-Preclinical-Data-at-the-American-Society-of-Gene-and-Cell-Therapy-Annual-Meeting

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Positive news for Translarna™ (ataluren)

 

One of the objectives of our team is to inform you about new treatments. Here’s the latest news from PTC Therapeutics press release about Translarna ™ (ataluren). Enjoy reading and thank you for sharing these articles within the DMD community.

 

CHMP Adopts Positive Opinion for the Expansion of the Translarna ™ (ataluren) Label to Include Patients as Young as 2 Years of Age

PTC Therapeutics, Inc. announced that the Committee for Medicinal Products for Human Use (CHMP) of the European Medicines Agency (EMA) had recommended approval of expanding the indication of Translarna ™ (ataluren) to include ambulatory children aged two to five years with nonsense mutation Duchenne muscular dystrophy (nmDMD). This broadens the use beyond the current indication which is for ambulatory patients who are over five years of age. In addition to the label expansion, the CHMP has also recommended the renewal of the current marketing authorization of Translarna.

“Early diagnosis and treatment has been a paramount part of our strategy and this recommendation perfectly aligns with our vision of giving best-in-class treatment to patients,” said Marcio Souza, the chief operating officer of PTC Therapeutics.

PTC’s focus on early patient identification and market readiness have been intensified in anticipation of the CHMP recommendation and the launch of Translarna for patients as young as two years of age, and it is planned to start immediately at the time of EC ratification.

 

About  Translarna ™ (ataluren)

Discovered and developed by PTC Therapeutics, Inc., Translarna ™ (ataluren) is a protein restoration therapy designed to enable the formation of a functioning protein in patients with genetic disorders caused by a nonsense mutation. A nonsense mutation is an alteration in the genetic code that prematurely halts the synthesis of an essential protein. The resulting disorder is determined by which protein cannot be expressed in its entirety and is no longer functional, such as dystrophin in Duchenne muscular dystrophy.

read more: https://laforcedmd.com/ataluren-promising-treatment-for-dmd/

 

About DMD

Duchenne muscular dystrophy (DMD) is a disease that almost exclusively affects boys and whose incidence is 1 in 3,500. It is extremely rare that Duchenne muscular dystrophy (DMD) will affect girls. Those affected are usually diagnosed around the age of five, but symptoms may be visible from early childhood. It is a degenerative disease of the muscles caused by a genetic mutation. The Duchenne muscular dystrophy (DMD) – for which no treatment is currently available – directly affects skeletal muscles. Without treatment, the consequences of the disease are dire for those afflicted and their families.

 

Press release:  http://ir.ptcbio.com/news-releases/news-release-details/chmp-adopts-positive-opinion-expansion-translarnatm-ataluren

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Recruiting participants here in Canada

 

Sarepta Therapeutics is recruiting DMD patients that have out-of-frame deletion mutations in dystrophin that may be treated by skipping exon 45 or exon 53 for its ESSENCE study.

 

Purpose of the ESSENCE Study

Sarepta is recruiting for Duchenne muscular dystrophy (DMD) patients with deletion mutations amenable to exon 45 or exon 53 skipping.

The purpose of this Phase III research study is to evaluate the safety and effectiveness of SRP-4045 and SRP-4053 in boys with DMD, who have a deletion that is potentially responsive or amenable to exon 45 or exon 53 skipping.

ESSENCE is a randomized, placebo-controlled study. Each study participant will be randomly assigned to receive either active study drug (SRP-4045 or SRP-4053, depending on his deletion type) or placebo. Placebo is made to look just like the active study drug, but it will not contain any active substance. Researchers use a placebo to see if the active study drug works and to see how safe and effective it is compared to not taking anything. This trial design is the best way to get a clear answer about the safety and effectiveness of a new drug and is usually required by regulatory authorities in the approval process for a drug.

 

Who may be able to participate in the ESSENCE study?

  • Boys with DMD, 7 to 13 years old who can walk
  • Boys having a genetic test that shows they have a deletion that may be treated by skipping exon 45 or 53*
  • Boys that have been on a stable dose of corticosteroids (e.g. prednisone or deflazacort) for at least six months
  • Stable lung (breathing) and heart function

 

Why should I consider participating in this study?

  • Access to an investigational therapy
  • Access to highly experienced clinicians with strong expertise in treating DMD
  • Opportunity to become more familiar with what participation in a clinical study entails
  • Opportunity to help others by contributing to medical research that may accelerate

 

Two hospitals are participating in this trial in Canada:

Alberta > Alberta Children’s Hospital

Principal Investigator: Jean Mah, MD

Contact: tiffany.haig@albertahealthservices.ca

  

Ontario > London Health Sciences Centre

Principal Investigator: Craig Campbell, MD

Contact: gina.bhullar@lhsc.on.ca

More trial sites: clinicaltrials.gov

 

What is Exon Skipping

Mutations in the dystrophin gene are one cause of DMD. Most commonly, one or more exons (a portion of a gene) are missing, and the remaining exons don’t fit together correctly. (Think of a zipper that doesn’t work properly, because teeth are missing.)

Because of this error, cells cannot make the dystrophin protein that muscles need to work properly. Without it, muscle cells become damaged and, over time, are replaced with scar tissue and fat.

To fix the broken genetic machinery, scientists are developing drugs that skip over parts that contain missing or defective exons. In this way, the machinery can produce a less imperfect dystrophin protein, which may improve muscle function in children with exon mutations.

Sarepta investigational therapies in the ESSENCE study use a technique referred to as exon skipping. Skipping a specific exon next to the mutation is intended to allow the body to make a shortened form of the dystrophin protein.

 

About DMD

Duchenne muscular dystrophy (DMD) is a disease that almost exclusively affects boys and whose incidence is 1 in 3,500. It is extremely rare that Duchenne muscular dystrophy (DMD) will affect girls. Those affected are usually diagnosed around the age of five, but symptoms may be visible from early childhood. It is a degenerative disease of the muscles caused by a genetic mutation. The Duchenne muscular dystrophy (DMD) – for which no treatment is currently available – directly affects skeletal muscles. Without treatment, the consequences of the disease are dire for those afflicted and their families.

Disclaimer: Choosing to participate in a study is an important personal decision. Before you participate in a study, discuss all options with your health care provider and other trusted advisors.

 

More about ESSENCE

Brochure: sarepta.com/Brochure.pdf

For more information, contact: trialinfo@sarepta.com Visit www.sarepta.com for updates on Sarepta’s clinical studies

ESSENCE: essencetrial.com

ESSENCE clinical trial information: clinicaltrials.gov  #NCT02500381

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Capricor initiates HOPE-2 clinical trial

One of the objectives of our team is to inform you about new treatments. Here’s the latest news from a recent press released by Capricor which announces the clinical trial HOPE-2. Enjoy reading and thank you for sharing these articles within the DMD community.

CAP-1002 aim to maintain or improve cardiac and skeletal muscle function

Capricor’s lead candidate, CAP-1002, is a cell therapy that is currently in clinical development for the treatment of Duchenne muscular dystrophy (DMD). CAP-1002 is an allogeneic product, meaning that it is manufactured from donor heart tissue and then stored until needed for use. CAP-1002 consists of allogeneic cardiosphere-derived cells, or CDCs, a unique population of cells that contains cardiac progenitor cells. CAP-1002 has been shown to exert potent immunomodulatory activity and alters the immune system’s activity to encourage cellular regeneration. CDCs have been the subject of over 100 peer-reviewed scientific publications and have been administered to approximately 140 human subjects across several clinical trials.

Status by the FDA

CAP-1002 has been granted orphan drug designation by the FDA for the treatment of DMD.

About the HOPE study

Capricor’s previous clinical trial, the HOPE-Duchenne trial, evaluated the safety and efficacy of a single dose of CAP-1002 in boys and young men with heart disease related to Duchenne muscular dystrophy. It found CAP-1002 was safe, well tolerated and demonstrated significant and sustained signals of improvement in cardiac and skeletal muscle function.

HOPE 2

Participants in the HOPE-2 trial will be randomized to receive either placebo or CAP-1002, delivered intravenously every three months for a total of 4 administrations. Participants will be followed for a yearlong period following randomization, and an open-label extension (OLE) study is planned. The trial evidence should suggest an appropriate risk/benefit profile of CAP-1002 in the medical indication. Capricor – HOPE-2

Where is the trial?

The medical center in Sacramento is the first site in the nation to begin enrolling and treating participants. Approximately 12 to 15 investigative sites are expected to participate in the trial.

About Capricor

Capricor Therapeutics is a clinical-stage biotechnology company focused on the discovery, development and commercialization of first-in-class biological therapeutics for the treatment of rare disorders. Capricor’s lead candidate, CAP-1002, is an allogeneic cell therapy that is currently in clinical development for the treatment of Duchenne muscular dystrophy.

What is DMD?

Duchenne muscular dystrophy (DMD) is a disease that almost exclusively affects boys and whose incidence is 1 in 3,5000. It is extremely rare that Duchenne muscular dystrophy (DMD) will affect girls. Those affected are usually diagnosed around the age of five, but symptoms may be visible from early childhood. It is a degenerative disease of the muscles caused by a genetic mutation. The Duchenne muscular dystrophy (DMD) – for which no treatment is currently available – directly affects skeletal muscles. Without treatment, the consequences of the disease are dire for those afflicted and their families.

For more information:

Rare Disease Report

GlobeNews Wire – Press Release

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Edasalonexent: Positive results and no side effects

One of the objectives of our team is to inform you about new treatments. Here’s the latest news from a recent Catabasis press release about edasalonexent. Enjoy reading and thank you for sharing these articles within the DMD community.

The MoveDMD trial through 48 weeks of edasalonexent treatment

 

“ We believe that these effects will ultimately translate to boys with Duchenne maintaining functional abilities longer.”

Said Jill C. Milne, Ph.D., Chief Executive Officer of Catabasis, in a press release this week.

The fact that no evidence of side effects or safety has been observed after more than 37 patient-years of exposure to treatment is also encouraging.

What is Edasalonexent?

Edasalonexent (CAT-1004)  is being developed as a potential foundational disease-modifying therapy for all patients affected by DMD, regardless of their underlying mutation. It is an investigational oral small molecule. Edasalonexent inhibits NF-kB, a protein that is activated by DMD and drives inflammation and fibrosis, muscle degeneration and suppresses muscle regeneration.

You can watch our video here to have a more in-depth explanation about the basis of this treatment.

 

Positive results:

Statistically significant improvement was observed compared to the off-treatment control period. These improvements show a slowing of disease progression and are in addition to the improvements found in all assessments of muscle function through more than a year of edasalonexent treatment.

What’s next?

Catabasis is preparing for a Phase 3 trial that will enroll approximately 125 boys with DMD between the ages of 4-7 years old regardless of mutation type and who have not been on steroids for at least six months. It is planned to be a single, global, placebo-controlled Phase 3 trial with two boys receiving edasalonexent for every one boy receiving placebo. After 12 months in the trial, all boys are expected to receive edasalonexent in an open-label extension.

Approbation in the US: FDA Status

The FDA has granted orphan drug, fast track and rare pediatric disease designations and the European Commission has granted orphan medicinal product designation to edasalonexent for the treatment of DMD. For a summary of clinical results reported to-date, please visit www.catabasis.com.

About DMD

Duchenne muscular dystrophy (DMD) is a disease that almost exclusively affects boys and whose incidence is 1 in 3,500. It is extremely rare that Duchenne muscular dystrophy (DMD) will affect girls. Those affected are usually diagnosed around the age of five, but symptoms may be visible from early childhood. It is a degenerative disease of the muscles caused by a genetic mutation. The Duchenne muscular dystrophy (DMD) – for which no treatment is currently available – directly affects skeletal muscles. Without treatment, the consequences of the disease are dire for those afflicted and their families.

For more information:

More information about the trial:  DMDtrials@catabasis.com and Catabasis -clinical trials

More: Portrait of Duchenne – edasalonexent cat-1004 – La Force DMD

Press release: www.catabasis.com

Business Wire: www.businesswire.com

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A clinical trial on utrophin modulation is completed

One of the objectives of our team is to inform you about new treatments. You can catch up on the last news in the latest press release by Summit Therapeutics company about ezutromid, a utrophin modulation. We wish you a happy reading and thank you for sharing those articles within the DMD community.

“PhaseOutDMD” clinical trial for ezutromid is completed

“We believe the early improvements seen in muscle health in the interim data from PhaseOut DMD indicate ezutromid is reducing DMD disease severity. In the full trial results, we aim to see continued utrophin modulation and sustained changes in magnetic resonance parameters. These results, if positive, could form the basis of a regulatory filing of ezutromid, bringing this universal treatment to patients more rapidly.”

Said Dr. David Roblin, Chief Medical Officer and President of R&D of Summit.

What is “PhaseOutDMD”?

PhaseOut DMD is a Phase 2 open-label, multi-centre trial of the Company’s utrophin modulator, ezutromid, in patients with DMD. Previously announced 24-week interim data from PhaseOut DMD showed evidence of activity across three different measures. Specifically, ezutromid:

• Maintained the production of utrophin, a naturally occurring protein that can potentially substitute for dystrophin, as measured by muscle biopsy;

• Significantly and meaningfully reduced muscle damage, as measured by muscle biopsy; and

• Significantly reduced muscle inflammation, as measured by magnetic resonance.

What is utrophin?

The human body naturally produces utrophin, a protein, when a muscle is first forming or when a muscle is repairing. As a muscle matures, dystrophin replaces utrophin. However, in people with Duchenne muscular dystrophy (DMD), dystrophin does not function properly. Utrophin is functionally and structurally similar to dystrophin. Preclinical trials that have simulated sustained utrophin production have shown that it could potentially replace dystrophin in people with Duchenne muscular dystrophy (DMD). The replacement of dysfunctional dystrophin with functional utrophin might have a highly positive impact on muscle performance.

Summit Therapeutics believes that utrophin may slow or even stop the progression of DMD.

 

This video explains what is utrophin.

About Summit Therapeutics

Summit is a biopharmaceutical company focused on the discovery, development and commercialization of novel medicines for indications for which there are no existing or only inadequate therapies. Summit is conducting clinical programmes focused on the genetic disease Duchenne muscular dystrophy and the infectious disease C. difficile infection. Further information is available at www.summitplc.com and Summit can be followed on Twitter (@summitplc).

What is DMD?

Duchenne muscular dystrophy (DMD) is a disease that almost exclusively affects boys and whose incidence is 1 in 3,5000. It is extremely rare that Duchenne muscular dystrophy (DMD) will affect girls. Those affected are usually diagnosed around the age of five, but symptoms may be visible from early childhood. It is a degenerative disease of the muscles caused by a genetic mutation. The Duchenne muscular dystrophy (DMD) – for which no treatment is currently available – directly affects skeletal muscles. Without treatment, the consequences of the disease are dire for those afflicted and their families.

Useful links

Here are a few additional links including the initial news release of the Summit Therapeutics company.

Link to the news release: www.summitplc.com

Link to additional information on utrophin modulation:

Positive data about utrophin modulator – La Force DMD

Portrait of Duchenne – Utrophin modulator – La Force DMD

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New DMD exon-skipping therapy on the way

Following positive results obtained in Phase I/II trial of SRP-4053 (Golodirsen), Sarepta Therapeutics has announced a plan to submit a new drug application (NDA) for accelerated approval of Golodirsen in patients with Duchenne muscular dystrophy (DMD).

According to results of the clinical study, Golodirsen significantly boosted dystrophin protein production in 25 boys with confirmed deletions of the DMD gene amenable to exon 53 skipping. This mutation affects about 8 percent of all DMD patients.

 

What is Golodirsen?

Golodirsen uses exon-skipping technology and works by binding to exon 53 of the dystrophin sequence to exclude, or skip, this part of the sequence. This helps produce a smaller but functional form of dystrophin protein.

 

Positive results

Golodirsen showed potential to treat Duchenne muscular dystrophy (DMD) in a first clinical trial of DMD patients. Press release

 

Why do we need to skip an exon?

DMD is caused by specific errors (mutations) in the gene that codes for dystrophin. Dystrophin is a protein that plays a crucial role in the function of muscle cells and protects them from damage as muscles contract and relaxes. These mutations in the dystrophin gene lead to a lack of dystrophin protein in muscles. Without enough dystrophin, muscles gradually grow weaker until they can’t move at all, and eventually breathing and heart function are lost.

The condition is universally fatal, and death usually occurs before the age of 30 generally due to respiratory or cardiac failure.

 

More about Golodirsen

Golodirsen uses Sarepta’s proprietary phosphorodiamidate morpholino oligomer (PMO)* chemistry and exon-skipping technology to skip exon 53 of the DMD gene. Golodirsen is designed to bind to exon 53 of dystrophin pre-mRNA, resulting in exclusion, or “skipping,” of this exon during mRNA processing in patients with genetic mutations that are amenable to exon 53 skipping. Exon skipping is intended to allow for the production of an internally truncated but functional dystrophin protein.

Golodirsen is one of the investigational candidates currently being evaluated in the ESSENCE study, a global, randomized double-blind, placebo-controlled study evaluating efficacy and safety in patients amenable to skipping exons 45 or 53.

*a phosphorodiamidate Morpholino oligomer (PMO), is a type of oligomer molecule (colloquially, an oligo) used in molecular biology to modify gene expression. 

 

More about clinical trial

 ESSENCE: Phase III Study

Purpose: The main objective of this study is to evaluate the efficacy of SRP-4045 and SRP-4053 compared to placebo in Duchenne muscular dystrophy (DMD) patients with out-of-frame deletion mutations amenable to skipping exon 45 and exon 53 respectively.

Location: United States, Europe, Canada, Israel

For more information, please visit www.clinicaltrials.gov or www.essencetrial.com

 

Sources:

Clinical Trials

Muscular Dystrophy News

Investor Relations

Wikipedia

Microdystrophin gene transfer trial on Hold

Solid Biosciences Announces Clinical Hold On SGT-001 microdystrophin gene transfer Clinical Phase I/II Clinical Trial for Duchenne Muscular Dystrophy. 

Solid Biosciences Inc. announced it had received notification from the U.S. Food and Drug Administration (FDA) that IGNITE DMD, its Phase I/II clinical trial for microdystrophin gene transfer in Duchenne muscular dystrophy (DMD), has been placed on Clinical Hold.

What happened?

The first patient dosed in the clinical trial was a non-ambulatory adolescent. Several days after administration the patient was hospitalized due to laboratory findings that included a decrease in platelet count followed by a reduction in red blood cell count and evidence of complement activation. *The complement system is an enzyme cascade that helps defend against infection. 

How is the patient now?

The patient was admitted to the hospital, received treatment, and he is home with his family with no symptoms.

What is a clinical hold?

Solid reported the event to the FDA and, because it was unexpected, classified it as a Suspected Unexpected Serious Adverse Reaction (SUSAR).

What’s next?

The team at Solid will be working with the principal investigator and FDA to fully understand the cause and nature of this event, as well as identify appropriate next steps as soon as possible.

 

In case you don’t remember the specifics about the microdystrophin and gene therapy we invite you to watch the interview we conducted in London with Dr. Jeffrey Chamberlain PH.D.:  Here

 

About the clinical trial:

The Phase I/II clinical trial, called IGNITE DMD, is a randomized, controlled, open-label, single ascending dose study that will evaluate the safety and efficacy of SGT-001 in both ambulatory and non-ambulatory patients with DMD.  IGNITE DMD, adaptive in nature, will allow Solid Biosciences to adjust dose and number of patients as the study progresses to efficiently characterize the safety and efficacy of SGT-001. The patient screening will begin at their first participating study in one location in the United States in the coming days. Solid Biosciences is working to bring on additional sites in the United States and abroad.

About SGT-001

SGT-001 is a novel adeno-associated virus* (AAV) vector-mediated gene transfer under investigation for its ability to address the underlying genetic cause of DMD. SGT-001 is a systemically administered* candidate that delivers a synthetic dystrophin gene, called microdystrophin, to the body. This microdystrophin encodes for a functional protein surrogate that is expressed in muscles and stabilizes essential associated proteins.

 

  • Clinical trial: Here
  • Letter to the Duchenne Community About the Status of the IGNITE DMD Clinical Trial: Here
  • Link to press release: Here
  • More info on our previous blog post: Here