Santhera Presents Clinical Data of Catena® in Duchenne Muscular Dystrophy at the 2011 Congress of the World Muscle Society

by Admin 10/24/2011 9:13:00 AM

Liestal, Switzerland, October 19, 2011 - Santhera Pharmaceuticals (SIX: SANN) announced today that it will present data from the 2-year open-label study (DELPHI-E study) evaluating Catena® for the treatment of Duchenne Muscular Dystrophy [1], one of the most common and devastating types of muscular dystrophy. The findings indicate that Catena® slowed the decline in respiratory function compared to the expected natural history in patients with Duchenne Muscular Dystrophy. Data from this study are in agreement with and confirm data from a randomized controlled study (DELPHI study) of 12 months duration [2]. The poster presentation will be given at the 16th International Congress of the World Muscle Society in Almancil, Portugal on October 21, 2011.

References

[1] Buyse G.M., Goemans N., van den Hauwe M., Thijs D., Wei Hui, Rummey C., Meier T., Mertens L.: Results from a two-year open label intervention study with idebenone (Catena®) in patients with Duchene Muscular Dystrophy. Poster presentation at the 16th International Congress of the World Muscle Society in Almancil, Portugal, from October 18 to 22, 2011.

[2] Buyse G.M., Goemans N., van den Hauwe M., Thijs D., de Groot  I.J.M., Schara U., Ceulemans B., Meier T., Mertens M.: Idebenone as a novel, therapeutic approach for Duchenne muscular dystrophy: Results from a 12 month, double-blind, randomized placebo-controlled trial. Neuromuscular Disorders 2011; 21:396-405.



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Genzyme ataluren in nmDBMD Programme Update

by Admin 9/5/2011 3:00:00 AM
September 2011
 
Genzyme has developed this Programme Update as a way to communicate about
ataluren and as part of our ongoing commitment in keeping the DBMD community
informed.
-----------------------------------------------------------------------------------------------
 
As reported in our June Programme Update, Genzyme has been actively exploring
various options in our efforts to determine appropriate next steps for the nmDBMD
programme. While we have been very pleased with our long-standing relationship
with PTC, as a result of our recent portfolio alignment process, we would like to
inform the community that Genzyme has decided to restructure our relationship with
PTC for the ataluren nmDBMD programme. We will, however, retain an option to
reengage the collaboration for non-nmDBMD indications, which reflects our belief in
the potential of this approach for the treatment of nonsense mutation genetic
disorders.
 
Also in our June Programme Update, Genzyme informed the nmDBMD community
that we initiated start up activities for a follow-on clinical study for patients who
participated in earlier ataluren nmDBMD clinical trials.  Moving forward, PTC now has
full, global responsibility for the clinical, regulatory and commercial strategy of
ataluren in nmDBMD. Genzyme will work closely with PTC to ensure an efficient
transition of all DBMD related activities to PTC. Questions relating to the follow-on
safety study follow-on clinical study for patients who participated in earlier ataluren
nmDBMD clinical trials should be directed to PTC. 
 
If you have any questions relating to this announcement or the follow-on safety study,
we would kindly ask that you forward these directly to PTC who are best placed to
address them. PTC can be contacted either by e-mail at PatientInfo@ptcbio.com
or by telephone +1 866 282-5873.
 
Genzyme is deeply impressed by the unwavering dedication, support and
collaboration within the community on the behalf of families affected by DBMD,
particularly the boys living with this disease. We have greatly appreciated the
community’s patience and engagement in ongoing dialogue during our involvement
with the ataluren nmDBMD programme. Even though Genzyme will no longer be
involved with ataluren in nmDBMD, we would like to assure you that we remain
committed to the neuromuscular patient community and will continue to look for
innovative, transformative therapies for those with unmet medical needs.

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Duchenne Ireland completes the initial stage of it's Personalized Exon Skipping Research Project

by Admin 7/25/2011 9:28:00 AM

Duchenne Ireland announced today, the completion of the first stage of their Personalized Exon Skipping research project.

Skin biopsy samples were collected atthe Central Remedial Clinic in Dublin on July 8th 2011 and transported to the Newcastle BIO Bank in the UK where they await cell culture procedures before transport to Professor Steve Wilton’s laboratory in the University of Western Australia.

Speaking about the research project, Dr. Bryan Lynch Paediatric Neurologist at Temple Street Children's Hospital and the CRC said: "The goodwill and enthusiasm of all associated with this project is incalculable".

Thanks must be given to all of Duchenne Ireland’s supporters for their efforts with fundraising which has allowed Duchenne Ireland to fund this international project in its entirety. We would also like to thank the Duchenne Ireland research committee for the efforts to bring the project to its current stage.

Special thanks to the clinicians, nurses, patients and families who participated in the collection of the samples on the day and the great support families received during recruitment for the project. We acknowledge the pivotal role played by Professor Kay Ohlendiek and his team from NUI Maynooth who continue to liase between all participants in the project. Appreciation must also be shown for Professor Hanns Lochmüller and Professor Katie Bushby from Newcastle University for their collaboration on sample storage and cell culture at the Newcastle BioBank and final shipment to Professor Wilton's laboratory in Australia.

Finally, this project would not be in place at all if it was not for the dedicated work of Professor Steve Wilton and Professor Sue Fletcher from the University of Western Australia who have consistently progressed therapies for Duchenne boys over the past number of years since Exon Skipping showed initial therapeutic potential.

 

Pictured in the photograph at the CRC on the 8th of July were: (left to right): Dr. Bryan Lynch, Steve Carbery, Eoin O Rathaillaigh, SuzanneKeily, Margaret Goode, Therese Nestor, Aoife Carey.

Description of the research project onExon Skipping Therapy

This research project funded entirely by Duchenne Ireland's supporters is based onlocating the exon that is faulty in specific patient samples and willthen screen for the genetic drug which is most likely to block the defective process in this dystrophic sample. Since the human DMD gene contains 79 different exons, many different types of anti-sense molecules have to be tested. This fact makes this research project very complex. Following the skin biopsy procedure, the tissue sample will be transferred to a container with a biological liquid rich in nutrients. The potential contamination of the tissue sample with infectious agents, such as bacteria, will be prevented and controlled with antibiotics. This is important for the subsequent step of cell culturing.

Individual cells will then be produced from patient tissue samples. Cells will be stored in a BioBank Facility and samples shipped to the laboratory of Prof. Steve Wilton for genetic analysis. Cell samples will be exclusively used for this exon skipping project. At the end of the project, tissue samples will be destroyed or kept as a reference in the BioBank Facility if this is the wish of the participating patient. Tissue samples will be transferred anonymously and only suitable medical information, that might be helpful for the genetic study, will be supplied to the research laboratory.

 



Duchenne Ireland Exon Skipping Research Project Commences Patient Enrollment

by Admin 6/16/2011 11:08:00 AM

Duchenne Ireland has announced today, that their Exon Skipping funded research project in association with NUI Maynooth and Temple Street Children's Hospital has passed ethics and skin sample collection is scheduled to take place on June 8th.

Description of the research projecton Exon Skipping Therapy

This research project is based on locating the exon that is faulty in specific patient samples and will then screen for the genetic drug which is most likely to block the defective process in this dystrophic sample. Since the human DMD gene contains 79 differentexons, many different types of anti-sense molecules have to betested. This fact makes this research project very complex. Following the skin biopsy procedure, the tissue sample will be transferred to acontainer with a biological liquid rich in nutrients. The potential contamination of the tissue sample with infectious agents, such as bacteria, will be prevented and controlled with antibiotics. This is important for the subsequent step of cell culturing. Individual cellswill then be produced from patient tissue samples. Cells will bestored in a BioBank Facility and samples shipped to the laboratory of Prof. Steve Wilton for genetic analysis. Cell samples will be exclusively used for this exon skipping project. At the end of theproject, tissue samples will be destroyed or kept as a reference inthe BioBank Facility if this is the wish of the participating patient. Tissue samples will be transferred anonymously and only suitable medical information, that might be helpful for the genetic study, will be supplied to the research laboratory. 

If your son(s) with Duchenne are interested in taking part in this research project, please contact Dr. Bryan Lynch (Principal Clinician), Neurology Department, Temple Street Children's Hospital (01-878 4200) for further information on eligibility and schedule and location. Please Note: For logistic and other reasons this project is limited to Irish patients.

Duchenne Ireland Research Committee 



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Duchenne Irelands Gene Therapy Research Produces Results

by Admin 4/11/2011 8:52:00 AM

The following Abstract from a research paper on gene therapy reseach for Duchenne is the result of a Duchenne Ireland Grant awarded to Professor George Dickson's Laboratory in 2009. Please see the translational research section of our website for the link to the full paper:

Delivery of AAV2/9-microdystrophin genes incorporating helix 1 of the coiled-coil motif in the C-terminal domain of dystrophin improves muscle pathology and restores the level of α1-syntrophin and α-dystrobrevin in skeletal muscles of mdx mice.

Koo TMalerba AAthanasopoulos TTrollet CBoldrin LFerry APopplewell LJFoster HFoster KDickson G.

Royal Holloway, University of London, Biomedical and Life Sciences, Surrey, Egham, United Kingdom; T.Y.Koo@rhul.ac.uk.

Abstract

Duchenne muscular dystrophy is a severe X-linked inherited muscle wasting disorder caused by mutations in the dystrophin gene. Adeno associated virus (AAV) vectors have been extensively used to deliver genes efficiently for dystrophin expression to skeletal muscles. To overcome limited packaging capacity of AAV vectors (< 5kb), truncated recombinant microdystrophin genes with deletions of most of rod and carboxyl-terminal (CT) domains of dystrophin have been developed. We have previously shown the efficiency of mRNA sequence-optimized microdystrophin (ΔR4-23/ΔCT, called MD1) with deletion of spectrin like repeat domain 4 to 23 and CT domain in ameliorating the pathology of dystrophic mdx mice. However, the CT domain of dystrophin is thought to recruit part of the dystrophin associated protein complex which acts as a mediator of signaling between extracellular matrix and cytoskeleton in muscle fibers. In this study, we have extended the ΔR4-23/ΔCT microdystrophin by incorporating helix 1 of the coiled-coil motif in the CT domain of dystrophin (MD2), which contains the α1-syntrophin and α-dystrobrevin binding sites. Intramuscular injection of AAV2/9 expressing CT domain extended microdystrophin showed efficient dystrophin expression in TA muscles of mdx mice. The presence of the CT domain of dystrophin in MD2 increased the recruitment of α1-syntrophin and α-dystrobrevinat the sarcolemma and significantly improved the muscle resistance to lengthening (eccentric) contractions-induced muscle damage in the mdx mice compared to MD1. These results suggest that the incorporation of helix 1 of the coiled-coil motif in the CT domain of dystrophin to the microdystrophins substantially improves their efficiency on restoring muscle function in DMD patients.

PMID: 21453126 [PubMed - as supplied by publisher]

 



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Flora Women's Mini Marathon 2011

by Admin 4/5/2011 8:40:00 AM

 

Duchenne Ireland is delighted to be a recognised charity for the Flora Womens Mini Marathon 2011 that happens on the the June Bank Holiday Weekend (Monday 6th June). Every year we have many ladies run on our behalf and fundraise for Duchenne Research. 

So far we have raised over half a million euro for direct translational research for Duchenne, but so much more is needed to ensure therapies are developed for Duchenne boys.

So, please join us this June 6th for a great day out for the ladies and do your bit for a fantastic wholly voluntary charity.

Contact Anne Ebeling (anne.ebeling@duchenne.ie / 083-0033975) for further information on how to run the marathon and fundraise for Duchenne Ireland (and receive this years Duchenne Ireland Flora Womens Mini Marathon T-Shirt)



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Results of Prosensa’s Extended Phase I/II Exon-skipping Trial in Duchenne Muscular Dystrophy

by Admin 3/28/2011 5:21:00 AM
Leiden, March 24, 2011 – Prosensa, the Dutch biopharmaceutical company focusing on RNA modulating therapeutics, announces the publication of results from a phase I/II and 12-week extension study of its lead product, PRO051 (GSK2402968) for the treatment of Duchenne Muscular Dystrophy (DMD) in the New England Journal of Medicine (NEJM)[1].
 
PRO051 (GSK2402968) is an antisense oligonucleotide designed to induce skipping of exon 51 of the dystrophin gene. The published data confirmed the safety and tolerability of the drug in all patients and the 12-week extension study reported a modest improvement in walking distance in the six-minute walk test.

The phase I/II open label study was designed to investigate induction of dystrophin expression and to test the safety and tolerability of the drug. PRO051 (GSK2402968) was given to 12 patients, who received weekly subcutaneous injections at different dose levels. All patients entered an open-label long-term extension study after completion of the initial five weeks of the trial.

The study was conducted under the sponsorship of Prosensa at the University Hospital in Leuven (Belgium) and the Queen Silvia Children’s Hospital in Gothenburg (Sweden) with support from Leiden University Medical Center (The Netherlands). “The publication of the phase I/II clinical trial results in the New England Journal of Medicine is a recognition of Prosensa’s exon skipping approach for the treatment of DMD,” commented Dr Judith van Deutekom, the senior author on the publication and Prosensa’s Head of Drug Discovery.

PRO051 (GSK2402968) induced exon skipping in patients receiving 2 mg/kg or higher doses. Post treatment muscle biopsies confirmed that dystrophin expression ranged between 80% and 100% of muscle fibers in six patients and 60% to 80% in four patients. Results of the 12-week extension study showed an improvement of patients in the six-minute walk test. This was confirmed with 24-week extension data, which was presented at the 15th International Congress of the World Muscle Society in Japan, October 12-16, 2010. Results of the 48-week extension study will be presented at the 2011 Annual Meeting of the American Academy of Neurology in Honolulu, April 9-16. Definitive proof of efficacy and safety is being investigated in ongoing controlled clinical studies. PRO051 (GSK2402968) is currently in phase III clinical trials.

1 Goemans NM et al. Systemic administration of PRO051 in Duchenne’s muscular dystrophy. New England Journal of Medicine. 2011 Mar 23.


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Duchenne Ireland seeks parents interested in Exon Skipping Research Project

by Admin 1/15/2011 10:23:00 AM

 

Duchenne Ireland have awarded a research grant to Professor Steve Wilton's Lab in Australia under the Duchenne Ireland Research Grant Program in 2010,

with co. applicants being NUI Maynooth. The process involves samples to be given from the boys and skin cell cultures developed and sent to the Australian Laboratory

to identify specific chemistries that perform strong exon skipping for the boys specific cells.

 

Duchenne Ireland are currently seeking interested parents based in Ireland who's boy(s) have Duchenne and are eligible for Exon Skipping

(Genetics report and genetics counselling will help determine this) and where the parents are interested in personalized exon skipping research.

 

Interested parents should contact John Gorman on 083-3348634 for further details.

 

Note: This project is purely for research purposes only. All sample collection, cell culture, transfer and testing will involve full ethics approval by the institutions involved.



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Genzyme Ataluren in nmDBMD Programme Update

by Admin 12/22/2010 8:29:00 PM
ADM 007-09-12/10 
Genzyme Ataluren in nmDBMD Programme Update 
December 2010 
 
Genzyme have developed this Programme Update as a way to communicate about 
ataluren and as part of our ongoing commitment in keeping the DBMD community 
informed. For more information please feel free to contact Genzyme’s medical 
information department at eumedinfo@genzyme.com.  Please keep in mind that 
certain national regulations in Europe may prevent any form of communication 
between industry and patients (including the provision of non-promotional product 
information) so in some cases a physician may need to inquire on a patient’s behalf.  
_________________________________________________________________________
 
Genzyme and PTC continue to work diligently with regulatory authorities in different 
regions regarding ataluren.  Due to regional variances, the timing of these 
interactions, procedures and pathways differ depending on the regulatory framework 
for interaction between industry and authorities. 
 
As you are aware, these differences have been highlighted by recent developments 
in the USA, whereby PTC, with the support of the US FDA, implemented an open 
label safety study as an alternative to supporting individual patient IND requests (a 
US specific mechanism to gain access to non-approved treatments). Only nmDBMD 
patients who previously participated in ataluren trials at U.S. sites are eligible for this 
U.S. program. This particular safety study is not available in Europe. 
 
We recognize that European families may be frustrated by a perceived lack of 
progress in Europe in comparison to the US, and the difficulties in setting 
expectations around the potential and timing of nmDBMD patients having access to 
ataluren.  Genzyme wants to assure you that we have been active in evaluating how 
best to advance the programme and that we are making progress. We have recently 
initiated meetings with EU regulatory authorities to seek scientific advice on the data 
and potential paths forward, including the possibility of pre-approval access 
programmes. Upon receipt of their formal feedback we will be in a position to 
complete our evaluation and communicate next steps.   
 
We appreciate your continued patience and understanding during this period of time 
as we diligently work to complete our evaluation to determine the path forward. Our 
commitment remains to update the nmDBMD community in the first quarter of 2011 
and our goal is to make decisions that are in the best interest for this community. 
 


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Duchenne Ireland Funds Cutting Edge Personalised Research

by Admin 10/3/2010 3:54:00 AM

October 2nd 2010 - Ireland

Duchenne Ireland Charity Funds Cutting Edge Personalised Research

Duchenne Ireland issues a call for funding applications each year and there is considerable interest from research groups at home and abroad in obtaining financial assistance to perform much needed translational research into Duchenne Muscular Dystrophy. Decisions are made quickly by the charity’s research committee following peer review by international experts to ensure that important work can proceed without unnecessary delay. The charity, in it’s first grant call, contributed more than €200,000 to research projects that offer hope of promising breakthroughs in terms of treatments for this generation of boys.

Since it was set up a few short years ago, Duchenne Ireland has been involved in funding projects in Europe and elsewhere and it is hoped that such involvement can be continued. This will be possible only through additional fund-raising efforts which will help to ensure that money will be available to keep these important project going. The types and nature of the projects are very varied but in all cases the emphasis is on translational research that could have short or mid-term impact.

The latest round of funding has seen Duchenne Ireland commit another €180,000 towards a project that hopes to deliver results using a technique called exon skipping to overcome some of the negative effects of Duchenne Muscular Dystrophy. The project aims to identify the potential of exon skipping therapy for boys with Duchenne at a personalised level.

Numerous clinical trials are underway internationally for Duchenne therapies and Irish boys with Duchenne are currently missing out on the potential of these trials including upcoming “exon skipping” trials due to the lack of a clinical trial centre for Duchenne in Ireland. Ireland at present is one of the only countries in Europe that does not have a Duchenne Clinical Trial Centre. Duchenne Ireland is actively working with the Government and national Clinicians on a proposal to establish such a clinical trial centre for Duchenne in Ireland.

Funding for Duchenne Ireland research is generated from charity events such as this weekend’s (Saturday Oct 2nd) Tour Duchenne 2010, taking place at 9am at the Aquarium, Strand Road, Bray.
Tour Duchenne Is Duchenne Ireland’s annual charity cycle to raise funds for Duchenne Muscular Dystrophy research. Each year cyclists get ready for a super cycle route within Ireland. This year it takes them on the “Beach Tour” from Bray Seafront to Brittas Bay and back (approx 85 km.

The cycle is facilitated by the Gardai, the Red Cross, Bray Town Council and is sponsored by local businesses. This is a great day to show your support for the charity within the towns on the route (see http://www.duchenne.ie for route itinerary).

 

About Duchenne

Duchenne is the most common fatal genetic disorder diagnosed during early childhood, affecting approximately 1 out of every 3,500 boys and 20,000 babies born each year. Duchenne causes loss of muscle function and independence. There is currently no cure for Duchenne, but much research is currently underway to find an interim therapy that will help delay the progression of the disease until a cure is found.

66% of all duchenne cases are inherited from the boys mother. 33% of Duchenne cases diagnosed are not inherited but cause by environmental factors. This means that any boy can be diagnosed with Duchenne. Boys are usually only diagnosed between the ages of 3 and 5 years of age.Current research is working on replacing the missing dystrophin in children with Duchenne. Clinical trials are already underway, but we need more direct funding to this research to ensure it progresses faster than the disease.


About Duchenne Ireland

Duchenne Ireland is a patient organization and registered Irish Charity (CHY 18197) established to facilitate funding translational research into Duchenne Muscular Dystrophy. Duchenne Ireland is affiliated with numerous patient groups and clinical, research and support networks for Duchenne Muscular Dystrophy. Duchenne Ireland works internationally to rapidly advance research into Duchenne and welcomes organization, parents and supporter who believe they can help to forward progress in this research.

The aims of Duchenne Ireland is to raise awareness of Duchenne Muscular Dystrophy at local, national and government level. Our objective is to raise funds which shall go directly to the researchers and clinicians who we believe have the best chance of developing improved therapies which will benefit this generation. We are also working towards achieving an infrastructure which is on a par with best international practice.



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