Showing posts with label First. Show all posts
Showing posts with label First. Show all posts

Saturday, November 26, 2016

How To Get Safe Herniated Disc Relief With Chiropractic In Edmonton Begins With First Appointment


By Penelope Bunce


A disc anywhere on the spine can hurt when it is herniated. A herniation means the inner part of a disc bulges or leaks exerting pressure on an adjacent nerve root. The discs act to absorb shock as the body moves about. For help with combating a herniation, you can turn to Edmonton Chiropractic for care.

Each vertebra is a small hollow bone in the spine. The delicate spinal cord is encased and protected by these bones. The nerve roots located there send signals to activate all parts of the human body. Pain in any part of the body correlates with where on the spine the herniation is located. Thirty to fifty year olds are typically stricken.

Although this is the typical age group, a person of any age can suffer a herniation. It can be due to an automobile crash or sports injury. In some cases, it can simply result from lifting a heavy box.

Symptoms include pain in the neck, back or the extremities. You may experience a tenderness and stiffness as well. Individuals choose chiropractic care because it involves no invasive procedures and no possibly addictive pain medication.

On your first meeting with the chiropractor you will describe your pain and an examination will be done. Your spine and any other part of the body that hurts will be examined. Often an x-ray is needed along with range of motion and reflex tests.

No care can be planned or administered until a complete evaluation is completed. When appropriate, care may include spinal adjustments, a custom exercise program and massage. You will have appointments scheduled for the spinal adjustments to be done intermittently.

Improvement is dependent on variables such as age, extent of the herniation and general health of the client. As excruciating pain is reduced, you may be able to return to work. Periodic visits to the chiropractor can help maintain your pain at a tolerable level.




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Monday, November 7, 2016

Suggestions To Help You In Deciding On The Best Greens First Canada Supplier


By Shawn Hunter


Many people find it challenging to locate the most qualified professional for a job. This makes them do anything to obtain work. Some even pose as experts advertising their services, yet all they can provide are inferior services. You ought to know, exactly how will you set apart the right professionals from con men. As a consumer, you should know that you need to get quality for your cash. Below are elements that you must think about when choosing the best greens first Canada supplier to handle your project.

Always search for someone that is certified. An accredited professional has been permitted to operate by the neighborhood authorities. This implies that they have satisfied the specifications called for to function as a specialist in their area of work. Additionally, the license gives the consumer a right to report the specialist in situation they do not meet the set requirements for the task. It is therefore wise that you choose one who has a legitimate work permit.

Make sure to utilize a service provider who is experienced. A person who has prior experience in the job is able to embark on the project successfully. They will likewise avoid particular mistakes usual with the type of job they do for this reason doing the work much faster than a newbie. With an experienced service provider, you are sure that the task will satisfy your requirements.

Work with service provider that has an insurance policy. Accidents may occur during the work and it might be quite pricey for you to cater for the medical fees of the professional. An insurance coverage will consequently assist in limiting your obligation considering that the insurer is the one to make up the service provider. Also, you can look for payment from the insurance company if the task is not done to your specifications.

As a result of the dangerous nature of any type of sort of job, it is essential to employ an expert that is insured. The insurance plan will cover the professional in case he gets wounded. The ruined or lost property may also be compensated. Moreover, you could seek compensation from the insurance company in case the professional you employed does not satisfy your assumptions.

Make sure that you utilize the professional that has an excellent network. Because you may call for a different job to be taken care of, you need to know where will you obtain an additional trusted expert. A service provider with links will assist you get the next service provider for the task since they know that will best manage the job. You will therefore not have a hard time going through the whole process of finding a suitable service provider.

Always go with the professional who is skilled. The appropriate capability is essential because it ensures what sort of services you obtain. A professional who has required time to stay on par with the new fads out there is the most effective for the work because they are able to manage brand-new challenges that may influence the job. With brand-new skills, the work will be effectively done.

Do not forget to examine whether the specialist has the right devices for the task. There are specific devices that are needed for any type of project. You need to know if these tools are available to you. A trustworthy professional will supply all the devices needed and could also feature added manpower that can help them take on the job.




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Tuesday, October 11, 2016

First Gymnastics Of A Kid In A Childrens Tumbling Classes


By Imelda Reid


Parents may have their dreams for their kids to come true by supporting the needs of the youngsters. They may have different interests that lets them think about getting into things they handle right. With that, parents may want to have the kids trained well by professionals to have their talents and skills crafted well.

The fields of interests vary in the kind of works the children want to join. They might have the love for sports, ballet dancing, stage plays, or gymnastics. For those that are interested in gymnastics, the parents can just send their child in the childrens tumbling classes Delaware to let them get the proper training that might have them the enhancement of all those they want to acquire.

Tumbling is one of the noticeable move of a gymnast that can have the kids enjoy the field. This can just have them kindle their interests more to get on to what they have been thinking of dealing into what they should work well. In the class, they will be taught on the right way of executing different kinds of tumbling.

Gymnastics is a sports that focuses on the balance and the flexibility of an individual on the activities he has to pass. This may require some of the categories that needed the use of the balance beam, ribbons, hoops, an trampoline. This brings in the posture of an individual that has to pass through the challenges that they have to work right there.

Trainings can be offered to the participants to have them the lessons that they have to learn and practice to get what they want to handle. This is to bring on the gymnasts that are in them to have them work on some exercises they need to handle to get to what they should know right. Thinking about some things to consider might just let them deal on to what they might be working on.

The instructor of the class is a professional in the field as he can have everything he needed to teach to the youngsters in the way that the parents might be proud of the what their youngsters can have. This is to let the participants learn everything from the basics to the advanced techniques of the field to let them get what they needed to have in their thoughts. Parents will be assured of the learning process in the side of their children.

There can also be a recital for everything they have taken in their classes. This is to have all the lessons learned applied to the performances that they will be doing in front of the audiences. They can also evaluate themselves with this as the learning can have them what they needed to take in the mind.

There can be opportunities to be opened for the participants to let themselves get to deal on some things they can carry on. This will have them the chance to join for the regional and national competitions. They can be known in the field as they work their way to the top.

Their every day lives might also have them the application on what they have learned during their training. This is to promote them the good style of living their lives. They can just have everything be known well since this can have them all those they must work right.




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Saturday, October 8, 2016

Gene Therapy in Ophthalmology Update 12 First Gene Therapy Approval on the Horizon


As Andrew Pollack writes in today’s NYTimes, “After more than two decades of dashed expectations, the field of gene therapy appears close to reaching a milestone: a regulatory approval. The European Medicines Agency has recommended approval of a gene therapy to treat a rare genetic disease.”

The therapy recommended for approval in Europe, called Glybera, was developed by uniQure, a Dutch company. It treats lipoprotein lipase deficiency, a disease that affects only several hundred people in the European Union and a similar number in North America.

People with the disease have a genetic mutation that prevents them from producing an enzyme needed to break down certain fat-carrying particles that circulate in the bloodstream after meals. Without the enzyme, so much fat can accumulate that the blood looks white rather than red.

Glybera provides correct copies of the lipoprotein lipase gene, which allows patients to make some of the needed enzyme. A single treatment, consisting of injections into multiple spots on the leg muscles on the same day, is expected to last for several years, if not longer, said Jörn Aldag, chief executive of uniQure.


The reason I believe that this is important is because it brings “legitimacy” to the whole field of regenerative medicine. As readers of this online Journal are aware, my interest is in the field of ophthalmology. As you may be further aware, I am currently tracking eleven clinical trials involving the use of stem cells to treat ophthalmic disorders and sixteen gene therapy clinical trials. Several of these are showing promising results and the above approval, when it comes, will bring increased attention to the whole of this field, including the ophthalmic trials.

Anyone interested in obtaining my latest tables of ongoing clinical trials in either or both areas, please use the “Email Me” link to the right to request copies.

Tuesday, August 9, 2016

The First Ophthalmic Innovation Summit


Earlier this year, two venture capitalists, Emmett Cunningham of Clarus Ventures and Bill Link of Versant Ventures, came up with the idea to hold a meeting prior to this year’s AAO Meeting, to enable start up and other small and early-stage ophthalmic companies to present new innovations that they were working on to a group of “angels” and other potential investors, key ophthalmic industry leaders, and other interested parties. Thus was born the first Ophthalmic Innovation Summit (OIS). The day-long event was held at the Palace Hotel in San Francisco on October 22nd, co-chaired by the above mentioned venture capitalists.

Over 400 attendees listened to 10 minute presentations from 25 early stage and small companies, including twelve ophthalmic device companies, and thirteen working on ophthalmic pharmaceutical products to battle various disease states.

The device companies presenting included:

-- AcuFocus, Inc. – (a corneal inlay) Jim Socks, SVP Clinical & Regulatory Affairs
-- ReVision Optics, Inc. – (the Presby corneal inlay) J. Randy Alexander, President & CEO
PowerVision, Inc. – (a fluid-filled accommodating IOL) Barry Cheskin, President & CEO
NuLens Ltd. – (an accommodating IOL) Ori Gal, CEO
LenSx Lasers, Inc. – (femtosecond laser for cataracts) Ron Kurtz, MD, President & CEO
VisionCare Ophthalmic Technologies, Inc. – (implantable telescope for AMD) Allen Hill, President & CEO
WaveTec Vision – ( wavefront aberrometer) Tom Berryman, President & CEO
Ocular Therapeutix, Inc. – (hydrogel bandage lens) Amar Sawhney, PhD, President & CEO
OptiMedica Corporation – (pattern-scan laser for retina, and a femtosecond laser for cataracts) Mark Forchette, President & CEO
NeoVista, Inc. – (Epi-Rad 90 brachytherapy for AMD) John Hendrick, President & CEO
Oraya Therapeutics – (IRay X-ray therapy for AMD) Jim Taylor, President & CEO
Second Sight Medical Products, Inc. – (retinal prosthesis) Rob Greenberg, MD, PhD & CEO

[Editor’s note: I have written extensively on NeoVista and its Epi-Rad 90 treatment for AMD. Please see the links at the end of this posting. I have also just written a comprehensive report on the Oraya IRay X-ray treatment for AMD. That link is also included at the end of this posting.]

The pharmaceutical companies presenting included:

MacuSight – (pharma for AMD) David Weber, PhD, President & CEO
Ophthotech Corporation – (pharma for AMD) Samir Patel, MD, President & CEO
Taligen Therapeutics – (pharma for inflammatory disease) Abbie Celniker, PhD, CEO
Eyetech Inc. – (Macugen for AMD) Michael Atieh, Executive Chairman*
NeuroTech – (pharma for AMD) Ted Danse, President & CEO
Aerie Pharmaceuticals, Inc. –(pharma for glaucoma) Tom van Haarlem, MD, President & CEO
Panoptica, Inc. – (seeking early-stage ophthalmic drugs) Paul Chaney, President & CEO
SARCode Corporation – (pharma for inflammatory disease) Tom Gadek, PhD, CEO
Lux Biosciences, Inc. – (dry eye/uveitis) Ulrich Grau, PhD, President & CEO
Applied Genetic Technologies Corporation (AGTC) – (gene therapy) Sue Washer, CEO
ESBATech – (Alcon - biotech) Dominik Escher, PhD, CEO
Sirion Therapeutics – (anti-inflam/uveitis, GA in AMD)Barry Butler, President & CEO
iCo Therapeutics – (antisense for diabetic & macular edema) Andrew Rae, MBA, President & CEO

[Editor's Note: Some of the above presentations have been put online. Follow the links of the highlighted companies to see their presentations. In addition, some of the other presentations -- mentioned below -- are also shown online. Again, follow the highlighted text to see the presentations.]

In addition to the company presentations, industry leaders participated in panel discussions on topics ranging from views of the private and public sectors, financing of ophthalmic device and pharmaceutical companies, what established ophthalmic companies are seeking in smaller companies, and regulatory issues (ophthalmic devices, ophthalmic drugs).

Executives from larger companies weighed in with criteria that, for them, makes a new idea worthy of investment. These included proof of concept in animal studies as well as some characteristics that will distinguish the drug or device from competitors’ products. None of the individual investors in the audience thought that a slow economy was a bad time, per se, to make investments, and, in fact, several commented that putting assets on the table now will enhance their potential returns when capital starts flowing again.

As a wrap up to the meeting, two prominent ophthalmic practitioners, Richard Lindstrom and Mark Blumenkranz took a look at what the next five years might hold in the posterior segment (Blumenkranz) and the anterior segment (Lindstrom).

Dr. Lindstrom said that glaucoma surgeries may become a safe and more effective first-line alternative to medical management in patients who are regularly non-adherent with, or whose disease is refractory to, topical therapies. He also suggested that efforts to prevent cataractogenesis and presbyopia may someday preempt efforts to treat them.

Dr. Blumenkranz said that ophthalmologists are learning what oncologists discovered years ago – combination therapy is often superior to monotherapy. He also noted that virtually all retinal diseases conform to one of four avenues of pathogenesis, and that all four of those are in some part VEGF-dependent.

With the success of this first meeting, Dr. Cunningham hopes to make the OIS an annual event.


Prior to the meeting, Dr. Cunningham sat down with Jim Stommen, the recently retired editor of Medical Device Daily, to discuss both the upcoming OIS meeting and issues related to ophthalmic device and drug development. Here, presented with permission of The Healthcare Syndicate, a website devoted to healthcare information for the venture capital community, is the full interview:

EYE ON INNOVATION – AN INTERVIEW WITH: DR. EMMETT CUNNINGHAM, OPHTHALMOLOGIST AND VENTURE CAPITALIST

Dr. Emmett Cunningham is a Partner at Clarus Ventures. He will be Co-Chairing the upcoming Ophthalmology Innovation Summit scheduled for October 22nd at San Francisco’s Palace Hotel along with Dr. Bill Link of Versant Ventures. Prior to Clarus, Dr. Cunningham was senior vice president, medical strategy, at Eyetech Pharmaceuticals, where he helped build and lead the development and commercialization of Macugen, the first pharmacotherapy for age-related macular degeneration (AMD). Prior to Eyetech, he was at Pfizer. Dr. Cunningham is an ophthalmologist, an internationally recognized specialist in infectious and inflammatory eye disease, and an Adjunct Clinical Professor of ophthalmology at Stanford University.

Dr. Cunningham discussed both the upcoming Ophthalmology Innovation Summit and issues related to ophthalmic drug and device development with Jim Stommen, recently retired editor of Medical Device Daily.

HS: What are the key marketplace challenges for firms – and their investors – operating in the ophthalmic space?

Cunningham: The ophthalmic space has become relatively crowded in the past 5 years, which means there are more people and companies chasing the same end-points and indications. That’s a good thing for the patients who need new and improved treatments, but it makes investing a little more challenging because it’s harder to predict what the competitive landscape will look like 5 to 10 years down the road. In addition, the cost of running clinical trials continues to rise, and trials take more time enrolling. Perhaps the biggest challenge, however, is the overall financial environment. Investors, including venture investors, have responded to recent changes by becoming less willing to take on risk. For those companies developing drugs, many investors want to see randomized Phase II data. Similarly, for commercial-stage companies, many investors like to see enough of a sales ramp to be able to predict profitability. This has effectively left some companies “stranded” between financings.

HS: Aside from the format for trials and trial approvals, etc., are there any specific regulatory issues that apply broadly within the ophthalmic pharma space?

Cunningham: There are lots of very nuanced regulatory issues in the space. Really, ophthalmology has four big indications: wet AMD, dry AMD, diabetic macular edema/diabetic retinopathy, and glaucoma/neuroprotection. Everyone would agree that these each have the potential to be billion-dollar-plus markets. The next-largest indication is dry eye, which currently is about a $500 million-sized market in the U.S., but could be much larger once drugs with improved efficacy are available.

If you look at AMD, the first drug approved was Eyetech’s Macugen. It had modest efficacy, but was clearly more efficacious than placebo or the standard of care at the time. Next to come along, about a year later, was Lucentis, which had much greater efficacy. And by greater efficacy, if you looked at the primary endpoint response range, Macugen was in the 70% range and Lucentis was above 90%. So once you have a therapy that has a 90% efficacy rate, however you define that, it becomes very challenging to develop a drug that’s superior. So from the perspective, of having a very effective drug on the market, it’s harder to develop new drugs in the wet AMD space.

Dry AMD also is a very large market, but no one to date has developed a drug for it, so the regulatory and clinical development issues are still to be worked out. There are trials underway, and people are very enthusiastic about them, but until it actually happens, it’s unknown territory.

Dry eye has also historically been a very difficult indication. Allergan has Restasis approved for dry eye, but no other company has been able to get a drug approved for that indication. My guess is that it is difficult because the pathogenesis is complex – most companies go after things that are anti-inflammatory, or that increase tear production, but inflammation on the one hand and tar production on the other each contribute only partially to the pathogenesis of dry eye, so targeting either mechanism might be treating only part of the disease.

It’s a lot easier to develop a drug for glaucoma, where you have a very clear endpoint of pressure reduction, but because we have so many drugs available for pressure reduction, the hurdle has been raised to where the absolute pressure reduction for any given agent needs to be pretty pronounced. The hot area right now appears to be the so-called ROCK inhibitors, and a few companies are looking at those, but to be real winners in this space, they have to have good tolerability and compelling efficacy.

The are lots of other indications, such as infectious conjunctivitis, allergic conjunctivitis, etc., that are much smaller markets.

HS: Are those smaller markets worth getting involved with?

Cunningham: Yes and no. There are certain costs of developing a drug, no matter how big the market is, so if the market doesn’t justify those costs, then people don’t do it. They might do it as a second indication once it’s gotten approval for a lead indication, but they typically don’t bet the ranch on small indications.

HS: The agenda for your upcoming conference addresses the development of both device and drug solutions. Are there more opportunities for innovation, especially by smaller companies, on the device side?

Cunningham: Some problems are more amenable to devices, such as optical problems – those problems that have to do with focusing the image on the retina. One example is reversing presbyopia with accommodating intraocular lenses, currently pursued by Visigen, NuLens, and PowerVision. On the instrument side, WaveTec has a device that is used for accurately measuring the refractive area of the eye at the time of surgery to try to help improve placement of intraocular lenses, among other things. Devices also play a role in glaucoma management, particularly for patients who fail medical therapy. Examples would be Glaukos and Transcend, among others. There are lots of other examples, but generally I would say there’s considerable activity in both devices and drugs in ophthalmology.

HS: We have talked quite a bit about AMD, so I’m wondering where we’re headed with Lucentis, which has the huge market penetration, and then Avastin, which has made strides on an off-label basis.

Cunningham: Just by way of history, it’s not that long ago that we had no good therapies for neovascular AMD. I have friends who are retinal specialists who say, frankly, that practicing in that era was depressing, because patients would come in, they would have had a huge vision loss in one eye and oftentimes both eyes, and the physicians would have nothing to do except hold their hands and try to get them through it. So this whole era of anti-VEGF therapy has truly been a revolution in therapy for what is the leading cause of blindness in the developed world. Lucentis is a phenomenal drug. Genentech really outdid itself. Their commercial issue, however, is that Lucentis is basically an enhanced fragment of Avastin. So, once the Lucentis data came out, but when there was still a year or so until approval, people had the idea to compound Avastin and inject it into the eye, and experience with Avastin and Lucentis over the past 4 years has led many to assume that the two drugs have equivalent efficacy. To address this point directly, there’s an ongoing trial, called CATT, that is designed to rigorously compare the relative efficacy of Lucentis vs. Avastin for neovascular AMD. If Avastin is shown to be non-inferior, many assume that Lucentis sales will drop dramatically.

So now you have two very good drugs that are available for AMD – Lucentis and Avastin. You also have Macugen and lasers – specifically photodynamic therapy and thermal laser therapy. The first question, therefore, has to be, what is the unmet need? I think it’s clear that there’s a proportion of patients who don’t respond very well to intraocular VEGF inhibitors. Maybe it’s 20%, maybe it’s 30%. It depends on who you talk to. Maybe it’s only 10%. But it’s in that range. In addition, even those who respond to anti-VEGF agents find it difficult to tolerate these injections every month or two. They tend to be older patients, many have to be brought to the office by family members, the eye has to be prepared in a sterile fashion -- just as though they were going to undergo surgery, and then the injection is given.

I think a big movement in the space now is trying to find novel targets that can either supplement the efficacy of Lucentis or Avastin, which is a high hurdle because they have up to a 90% response rate, or treat those who are not responsive to Lucentis/Avastin. One such agent is the aptameric PDGF inhibitor being developed by OphthoTech. Others include a raft of complement inhibitors being developed for wet and dry AMD. The other thing that people are looking at is getting agents into a sustained-release format so that injections might only be every three months or six months instead of every month or two, to save the patient burden and the physician burden, because these injections have become so frequent that doctors are spending a significant portion of their time just doing injections. That’s the two big pushes in the AMD area right now.

HS: Two device-based approaches being studied as possible solutions for AMD involve the use of ionizing radiation delivered via systems developed by NeoVista and Oraya Therapeutics, both of which will present at the Summit. How would you characterize their progress?

Cunningham: If you had asked me five years ago whether I thought radiation would work, I would have said no. I would have said no because there had been trials that had looked at various radiation therapies for AMD, and they had basically failed. What NeoVista and Oraya would tell you, I believe, is that the radiation in those earlier trials was external radiation, and so wasn’t very focused. NeoVista actually puts the radioactive device very, very close to the retina and Oraya gives a finely focused external beam. I haven’t seen all the data for NeoVista -- and I think Oraya’s device is fairly early in development -- but the data that I have seen looks very intriguing.

HS: The laser refractive surgery (LASIK) segment has been dramatically impacted by the overall economic decline, but within that space, one intriguing segment is that of premium intraocular lenses. How is the market going for P-IOLs? Are some patients and practitioners taking a “wait and see” approach toward whatever improvements are forthcoming in what is a first-generation product market?

Cunningham: Premium IOLs have been much less affected than refractive surgery. The reasons are probably multiple and complex, but at base I think older retirees have more discretionary funds and tend to be more willing to spend the money for optimal vision.

HS: An intriguing area on the device side of ophthalmic therapy lies in the femtosecond laser technology for cataract removal that is under development by LenSx, another company slated to present at the Summit. Does this have the potential to be a “disruptive” technology in the space?

Cunningham: They’re early in their innovation curve, but the technology looks very impressive. If they’re able to do what they plan to be able to do, I think it could be disruptive.

HS: You talked a little earlier about glaucoma, and obviously you have surgical approaches, but there are some other innovative approaches that look to me making inroads because of the falloff in patient compliance on the drug side. Docs often talk about the difficult time they have keeping their patients compliant in use of drugs for glaucoma.

Cunningham: A few points: A) Glaucoma is very, very common; B) many patients are to a greater or lesser extent non-compliant; and C) many patients – perhaps up to 50% -- need more than one drug, which speaks both to how refractory the disease can be and, as mentioned, the issue with compliance. For all those reasons, new therapies are always welcome, and it could be another drop with a novel mechanism of action, that had the potential to be additive to current drops, another drop that was just so effective that it could supplant what is out there, or a device that could either supplant some of those patients who are on multiple drops or treat some of those downright treatment failures who don’t respond to any number of drops. For all of those reasons, glaucoma still is a very attractive space.

HS: Could you talk about the current funding environment in the ophthalmic space?

Cunningham: I don’t know if it’s the end of the beginning or the beginning of the end, as Churchill said, but I think people are beginning to see the light at the end of the tunnel. That said, credit and investments are still tight, and since the third quarter of last year, people have just been much more circumspect about their investments. I’d like to think that over time, things would get back to where they were a couple of years ago, which is to say staged investors willing to help shepherd these companies from inception through exit.

HS: What do you hope to accomplish with this new Ophthalmology Innovation Summit?

Cunningham: I’ve thought for some time now that it would be great to have a venue that would bring together early-stage companies, investors and the larger, later-stage public companies to facilitate the development and delivery of new drugs and devices to improve therapies for vision-threatening disorders. We also welcome entrepreneurs, physicians and vision scientists who are interested in company building and the process of developing ophthalmic drugs and devices. As you look at the agenda, I think you’ll agree that it really is a “who’s who” in the ophthalmology space, from the large companies, to the most promising private companies, to the VCs who invest in this space. Our hope is that this will be the first of what becomes an annual tradition.


References:

The Ophthalmic Innovation Symposium Agenda

An Overview of the OIS Meeting of October 22, 2009
Academy Alive – email from the AAO to its members for October 23, 2009.

Eye on Innovation Interview
The Healthcare Syndicate


Links to Previous Postings:

NeoVista Writeups:

NeoVista Epi-retinal Strontium 90 Treatment for Wet AMD (2-14-07)

NeoVista Epi-retinal Strontium 90 Treatment for AMD Update (7-10-07)

NeoVista Epi-Retinal Strontium 90 Treatment for AMD: Update 2 (11-19-07)

NeoVista Epi-Retinal Strontium 90 Treatment for AMD: Update 3 (10-1-08)


Oraya Writeup:


Oraya IRay In-office Stereotactic X-ray Treatment for AMD: A First Report



Friday, July 8, 2016

ELLEX 2RT Retinal Regeneration Laser An Update – First Clinical Results



In November 2007, just prior to that year’s AAO meeting, I learned about a new laser that had the potential to alleviate the early stages of age-related macular degeneration and other retinal diseases including diabetic maculopathy, caused by compromised Bruch’s membrane. The laser-based therapy was called ELLEX’s 2RT (Retinal Regeneration Therapy).

The theory behind the therapy was based on research conducted by Professor John Marshall at St. Thomas’ Hospital of London, and his colleague Dr. Ali Hussain. They found, after experimentation, that a specially-built Q-switched doubled YAG laser (532 nm) operating at 3 ns pulses, could be used subthermally to trigger a renewal process of the retinal pigment epithelial (RPE) cells, a sort of biostimulation, without damaging the overlying retina, including photoreceptors. This caused the RPE to migrate and release matrix metalloproteinases, enzymes, which act to clean up Bruchs membrane. The scientists were able to demonstrate and measure Bruch’s ability to transport water and chemicals and thus rejuvenate the retina.




      

For the rest of the story, please see my complete initial report of November 2007. (Link at the end of this post.)

First Clinical Results

In November 2008, Ellex released the six-month clinical study results of the first trial. In this clinical study, conducted at St. Thomas’ Hospital in London by Professor John Marshall, 23 patients (38 eyes) with newly-diagnosed diabetic maculopathy and/or macular edema were recruited and treated with Ellex 2RT. Seventeen patients (28 eyes) completed the six-month follow-up examination.

Patients are being followed for one year. Postoperative testing includes optical coherence tomography and microperimetry.

At the six-month follow-up, for the17 patients (28 eyes), the LogMar visual acuity had improved by two or more lines in 43% of eyes and between one and two lines in 28%. It remained unchanged in 15% of eyes, and deteriorated by two or more lines in 14%. Central macular thickness decreased by more than 5% from baseline in 46% of patients, remained stable in 39%, and had an increase of more than 5% in 15% of patients. The number of hard exudates decreased in 41% of eyes, stayed stable in 43%, and increased in 16%. Vascular leakage decreased in 55% of eyes, was unchanged in 31%, and increased in 14%. Slit-lamp ophthalmoscope microperimetry confirmed that photoreceptor function was not affected by the laser treatment. No adverse effects occurred during the study period.



The six-month results show that Ellex 2RT is clinically safe and effective in the treatment of macular edema secondary to diabetic retinopathy.

An example of the minimal damage to retinal cells is shown in the following illustration of 2RT treated Porcine RPE:



Research Program Update (April 2010)

Since the release of preliminary clinical results in 2007 and of the six-month results in 2008, Ellex has initiated a series of pilot clinical studies aimed at evaluating the clinical efficacy of Ellex 2RT for a number of indications, the most important of which is age-related macular degeneration (AMD). The studies are making good progress, with eight prototype systems currently in use throughout Australia and the United Kingdom in these studies. Patient recruitment is nearing completion in two of the key pilot studies, with follow-up planned over a 12-month period.

Studies focused on diabetic macula edema (DME) and proliferative diabetic retinopathy (PDR) are being undertaken in collaboration with the Royal Adelaide Hospital at three study sites. A major benefit of these studies is that they include control groups, allowing Ellex to more accurately benchmark the effect of Ellex 2RT treatment against conventional laser treatment.

A third study, focused on early AMD treatment, is being undertaken in collaboration with the Royal Victorian Eye and Ear Hospital, a major Australian teaching institution, under Professor R. Guymer.

Ellex will present preliminary results from these studies at the 2010 ARVO meeting in May. Once the results from this round of pilot studies have been fully analyzed, the company will evaluate the opportunity to undertake a multi-center randomized study, and look to expand their study sites beyond Australia and the UK.

In addition, as announced earlier this month, Ellex has sublicensed the SRT (selective retinal therapy) patent, U.S. 5,549, 596, from Massachusetts General Hospital, and can now enter the U.S. market with this technology.

(For more information on this development, please see my report: AMD Update 8: Breaking News – Ellex Sublicenses SRT Patent, linked at the end of this report.)

References:

Press Release: Ellex Announces Six-Month Results on Retina Regeneration Therapy, November 2008

Can Early Laser Therapy Delay Disease Progression?, John Marshall, Retinal Physician, September, 2009.

Links:

Ellex 2RT Retina Regeneration Therapy: A First Report (November 2007)

AMD Update 8: Breaking News -- Ellex Medical Sublicenses SRT Patent
(April 2010)