Study: Stem cells proven to reduce arthritic pain in bad knees

Mayo Clinic finds surprising results on first-ever test of stem cell therapy to treat arthritis (Mayo Clinic)
JACKSONVILLE, Fla. — Researchers at Mayo Clinic’s campus in Florida have conducted the world’s first prospective, blinded and placebo-controlled clinical study to test the benefit of using bone marrow stem cells, a regenerative medicine therapy, to reduce arthritic pain and disability in knees.
The researchers say such testing is needed because there are at least 600 stem cell clinics in the U.S. offering one form of stem cell therapy or another to an estimated 100,000-plus patients, who pay thousands of dollars, out of pocket, for the treatment, which has not undergone demanding clinical study.
The findings in The American Journal of Sports Medicine include an anomalous finding — patients not only had a dramatic improvement in the knee that received stem cells, but also in their other knee, which also had painful arthritis but received only a saline control injection. Each of the 25 patients enrolled in the study had two bad knees, but did not know which knee received the stem cells.
Given that the stem cell-treated knee was no better than the control-treated knee — both were significantly better than before the study began — the researchers say the stem cells’ effectiveness remains somewhat uninterpretable. They are only able to conclude the procedure is safe to undergo as an option for knee pain, but they cannot yet recommend it for routine arthritis care.
“Our findings can be interpreted in ways that we now need to test — one of which is that bone marrow stem cell injection in one ailing knee can relieve pain in both affected knees in a systemic or whole-body fashion,” says the study’s lead author, Shane Shapiro, M.D., a Mayo Clinic orthopedic physician.

Journalists, sound bites with Dr. Shane Shapiro are available in the downloads below.
MEDIA CONTACT: Kevin Punsky, Mayo Clinic Public Affairs, 904-953-0746, [email protected]
“One hypothesis is that the stem cells we tested can home to areas of injury where they are needed, which makes sense, given that stem cells injected intravenously in cancer treatments end up in the patients’ bone marrow where they need to go,” he says. “This is just a theory that can explain our results, so it needs further testing.”
Another explanation is that merely injecting any substance into a knee offered relief from pain.
“That could be, but both this idea and the notion that a placebo effect could be involved would be surprising, given that some patients are still doing very well years after their study treatment ended,” says Dr. Shapiro.
He adds that these findings are important because while use of a patient’s own stem cells for regenerative therapy is extraordinarily popular, the treatments may be untested and are often poorly regulated.
Stem cell clinics often offer expensive treatments for conditions that range from multiple sclerosis, lung and heart disease, to cosmetic treatments, such as facelifts. None of these techniques have been studied because clinics maintain that use of a patient’s own cells is not a drug.
But, depending on how they are processed and used, stem cells can, in fact, be regulated by the U.S. Food and Drug Administration as biological products or drugs requiring rigorous safety and efficacy approval processes. In early September, the FDA held scientific meetings to clarify how to regulate such practices.
Mayo Clinic researchers developed their study with FDA approval.
“We feel that if we are going to offer any stem cell procedures to our patients, the science needs to be worked out,” Dr. Shapiro says.
The study was conducted in Mayo’s Human Cell Therapy Lab. Researchers extracted 60 to 90 milliliters of bone marrow from each patient, then filtered it, removed all blood cells, and concentrated it down to 4 to 5 milliliters. The solution, which contained tens of thousands of stem cells, was injected into a patient’s knee using ultrasound-guided imagery.
“We actually counted all of the stem cells with markers that are accepted by the FDA, and we made sure they would be able to survive inside the patient,” Dr. Shapiro says. “Counting is expensive. Most clinics just draw the cells from bone marrow or fat and inject them back into the patient without checking for stem cells, hoping that patients get better,” he says.
Dr. Shapiro and his colleagues are currently designing new studies that will test whether the stem cells home to distant areas of injuries, as well as exploring other implications suggested in their findings.
Study investigators include Mayo Clinic in Florida senior author Mary L. O’Connor, M.D., Shari E. Kazmerchak, Michael G. Heckman, and Abba C. Zubair, M.D., Ph.D. Dr. O’Connor is now at Yale University.
Funding for this study was from Mayo Clinic’s Center for Regenerative Medicine.
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About Mayo Clinic
Mayo Clinic is a nonprofit organization committed to clinical practice, education and research, providing expert, whole-person care to everyone who needs healing. For more information, visit http://www.mayoclinic.org/about-mayo-clinic or http://newsnetwork.mayoclinic.org/.

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The UK government and patients are benefiting from "low-risk" generic hip replacements

NHS COULD SAVE £120 MILLION WITH GENERIC HIP IMPLANTS NOW AVAILABLE )(Orthimo)
See more stories about Generics
The NHS could be set to deliver some of the savings set out in Lord Carter’s recent review of spending, with new devices introduced into the health system.
This week, generic hip implants have become available through the NHS Supply Chain. This ensures that NHS hospitals now have access to high quality, less expensive orthopaedic implants.
Created by Manchester-based company Orthimo, these Optimised Equivalent® prostheses have been developed based on evidence from over one million of the best performing hip implants.
The UK is the first country in the world to benefit from applying the principle of generics to orthopaedic products. Generic medicines have been a core part of the NHS since the 1980s, offering the same clinical outcomes for patients as originator drugs, and now contributing over £12 billion in savings every year that can be reinvested into the health service.1
With over 66,000 hip replacement operations performed by the NHS every year,2 switching to generic hip implants from the current market leaders, the NHS could save up to £120 million by 2020 – enough to fund over 1,400 junior nurses every year. 2,3,4
The deal is well-timed following Lord Carter’s Review, which found that large efficiency savings can be made by all NHS hospitals – notably in orthopaedics. Some of these savings can be made by reducing the current variation in patient outcomes.5
Tim Briggs, National Director for Clinical Quality and Efficiency says “The Carter Review demonstrated that the NHS needs to improve consistency across Trusts, and access to generic implants for orthopaedics is a step in the right direction. Not only will this reduce variation in quality, significant costs could be saved without compromising patient safety. By improving procurement processes across the NHS we could be looking at saving £1 billion that can be reinvested in patient care.”
Professor Neil Rushton, Emeritus Professor of Orthopaedics at the University of Cambridge says “These new generic implants are equivalent to the ones we know to be the safest and most reliable.  Quite simply, the NHS is being offered the best performing product, at a lower cost. Having seen the evolution of orthopaedics in nearly 50 years’ experience with NHS patients, I believe the time has come for generic implants.”
Luc Vangerven, CEO of Orthimo, is looking to the future: “This deal will help more patients live normal lives following hip implant operations. This motivates me and my team on a daily basis.  We know that we can contribute to positive patient outcomes, and by offering savings, help to safeguard the NHS, so it can continue to offer world class care to patients in the future.”
References

British Generic Manufacturers Association. Response by the British Generic Manufacturers Association (BGMA) to the Department of Health Consultation on Amendments to the Statutory Scheme to Control the Prices of Branded Health Service Medicines. Available at: http://www.britishgenerics.co.uk/admin/files/1415793067_BGMA-consultationresponseonamendmentstostatutoryschemeforbrandedmedicines.docx.pdf  [Accessed April 2016]
National Joint Registry. Summary of Annual Statistics. Available at: http://www.njrcentre.org.uk/njrcentre/Healthcareproviders/Accessingthedata/StatsOnline/NJRStatsOnline/tabid/179/Default.aspx. [Accessed April 2016]

Department of Health, Review of Operational Productivity in NHS providers – Interim Report. Available at: https://www.gov.uk/government/publications/productivity-in-nhs-hospitals  [Accessed April 2016]

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Study: Running lowers inflammation in knees

RUNNING LOWERS INFLAMMATION IN KNEE JOINTS! (Orthopedics This Week)
Lace up! New research from Brigham Young University (BYU) has found that running can protect knees. Matt Seeley, Ph.D., A.T.C., is associate professor of exercise science at BYU. He and BYU colleagues Sarah Ridge, Ph.D., and Ty Hopkins, Ph.D., have found that running reduces inflammation in the joint.
“It flies in the face of intuition,” said Dr. Seeley, associate professor of exercise science at BYU, in the December 8, 2016 news release. “This idea that long-distance running is bad for your knees might be a myth.”
Their study, published in the December 2016 edition of European Journal of Applied Physiology, also involved Dr. Eric Robinson from Intermountain Healthcare. The scientists measured inflammation markers in the knee joint fluid of several healthy men and women aged 18-35, both before and after running.
“The researchers found that the specific markers they were looking for in the extracted synovial fluid—two cytokines named GM-CSF and IL-15—decreased in concentration in the subjects after 30 minutes of running. When the same fluids were extracted before and after a non-running condition, the inflammation markers stayed at similar levels.”
“What we now know is that for young, healthy individuals, exercise creates an anti-inflammatory environment that may be beneficial in terms of long-term joint health,” said study lead author Robert Hyldahl, Ph.D., BYU assistant professor of exercise science.
Dr. Seeley told OTW, “The primary impetus for this project was actually a desire to know how well serum COMP [Cartilage Oligomeric Matrix Protein] concentration represents synovial fluid COMP concentration. In other words, how well do serum concentrations of certain molecules that are now used to reflect knee articular cartilage health represent articular cartilage changes that might be occurring at the knee joint?”
“There appears to be a beneficial effect of 30 minutes of running, on knee articular cartilage, for young (18-40 years) uninjured individuals. Running might be medicine for knee articular cartilage for certain individuals.”
“The concentration of certain pro-inflammatory molecules, that have previously been associated with osteoarthritis onset and progression, decreased as a result of 30 minutes of running (some might have expected these concentrations to increase, as a result of running for 30 minutes).”
“We want to increase the sample size, as well as test the observations in other groups of individuals who are more likely to get knee OA (e.g., obese individuals, or elderly individuals, or individuals who have experienced certain knee injuries).”

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The story of Titan Spine and their secret sauce of nano-textured surfaces

Titan Spine’s new medical devices could set it apart (Journal Centinel)
The day after his first call to Barbara Boyan, Kevin Gemas was on a plane to meet her in Atlanta.
Gemas’ company, Mequon-based Titan Spine, was selling titanium medical devices used in back surgery to shore up injured or deteriorating vertebrae.
The devices seemed to work better than the plastic materials that were commonly used for spinal fusions at the time, but Gemas and his Titan Spine co-founder, Neenah spine surgeon Peter Ullrich Jr., didn’t know why.
Boyan did. A cell biologist at Emory University, she had spent decades studying how bones heal.
“There is more here than meets the eye, and more than you guys probably realize,” she said at the time, according to Gemas.
The result of that 2009 meeting was the development of a second generation of devices with a more precisely roughened surface that resembles that of bone and that theoretically triggers the cellular reaction needed to encourage beneficial bone growth.
For people with debilitating back pain, this may lead to reduced inflammation, quicker healing and better outcomes.
Following Gemas’ meeting with Boyan, Titan Spine developed a manufacturing process that creates pits in its devices on a scale of one to three micrometers. By comparison, a cell is 10 micrometers.
The approach is “biomimetic,” or designed to mimic nature, said William Murphy, a professor of biomedical engineering and orthopedics at the University of Wisconsin-Madison.
“There’s a lot of potential in that strategy,” said Murphy, who is co-director of the university’s Stem Cell and Regenerative Medicine Center.
Titan Spine’s first generation of devices gave the company a solid foundation. The company — which employs some 84 people and has a manufacturing and inspection plant in Brown Deer — is on track for revenue of $43 million this year.
The new devices have the potential of setting it apart in a large and lucrative market. About 650,000 to 675,000 spinal fusions are done a year, said Charles Whelan, a senior analyst who follows the medical-device industry for Frost & Sullivan, a research and consulting company.
The market for metal and plastic medical devices for spine surgery is estimated at $1.6 billion a year. And despite criticisms that spinal fusions are done too often, the market continues to grow at 4% to 5% a year.
Titan Spine is the only company with clearance from the Food and Drug Administration for medical devices with a nano-textured surface — distinguishing them from devices made of plastic or bone from cadavers as well as other devices made of titanium.
The devices were given their own diagnostic code by the Centers for Medicare and Medicaid Services this summer, potentially enabling the company to circumvent its much larger competitors when selling its devices to health systems.
This fall, the company raised $7.5 million from an investor. And it has doubled its sales force in the past year.
“Now is the time to actually get this new product, with a new code, the new FDA clearance and with all the new science, out onto the market,” said Ullrich, the company’s chief executive officer. “It’s a real inflection point for us.”
No definitive studies have been done, but several studies published in peer-reviewed journals have shown that the underlying design of the company’s devices reduces inflammation in lab experiments.
That theoretically would lessen pain and promote healing — and is why Titan Spine is drawing some attention among spine surgeons.
“In this space, no matter what company comes up with whatever technology — whatever bells and whistles they claim is better than their brethren — all will point back to Titan Spine and their data,” said Wellington Hsu, a spine surgeon and professor at Northwestern University.
Ullrich and Gemas — friends since their days at Plymouth Comprehensive High School — founded the company in 2006 with their own money and investments from friends and associates.
The company started small, initially selling one model that Ullrich had come up with based on his knowledge of roughened titanium used in dental implants.
Some surgeons were willing to try the medical devices and had good outcomes.
“We saw dramatic decreases in pain scores after six weeks of surgery,” said Adam Bruggeman, an orthopedic surgeon in San Antonio, Texas, who now receives speaking fees from the company.
Devices for spine surgery can cost $2,500 to $5,000, and often several are used in surgery. The initial sales generated enough cash that the company could gradually expand its product line from one model to seven, each designed for a specific procedure, without raising money from venture capital firms.
In 2014, Ullrich stopped practicing to work full time for the company. Sales hit $22 million that year and $33 million in 2015.
By then, competitors such as Medtronic and DePuy Synthes Cos., part of Johnson & Johnson, were moving to titanium devices.
But Titan Spine was working to improve its devices. That would entail learning about cell biology, drawing on the research of Boyan and her colleagues.
Boyan, now dean of the School of Engineering at Virginia Commonwealth University, holds 21 patents, with others pending, and had spent much of her career studying how the body creates bone cells.
She also took a liking to the people at Titan Spine.
“They’ve agreed to do it my way — to do it as science,” said Boyan.
By around 2010, her research was showing that how a body reacts to a medical device or implant is affected by its surface.
She and other researchers also found that adding chemicals to encourage bone growth wasn’t necessary. “These cells on the right surface behave the way they are supposed to,” Boyan said.
What she called the third “eureka moment” was that the surface needs to be exactly the right size — within one to three micrometers, or microns — to trigger the desired response.
Titan Spine, using a proprietary manufacturing process, spent three years testing 35 different surfaces, eventually determining that the ninth one was the best.
It was only by meeting Boyan that the company came to understand the underlying biology.
Now Titan Spine has to sell the device — and it faces the challenge of competing against much larger companies.
Most health systems and purchasing organizations negotiate contracts with two or three companies to get better prices.
Titan Spine could sell its first generation of devices because the contracts typically allow a hospital to buy a certain percentage of their medical devices from other companies.
The new Medicare diagnostic code, which went into effect in October, should enable Titan Spine to sidestep those caps. But the company still must negotiate contracts with each purchasing organization, health system or hospital.
“We are talking to everyone we can now,” Ullrich said. “You can’t flip a switch on this.”
Titan Spine also hopes to get a premium price, in part because the company recommends that surgeons not use bone morphogenetic protein, or BMP, which enhances bone growth, with its medical devices. BMP costs more than $2,000, and at times as much as $5,000, for each surgery. The cost doubles when two levels are fused.
Negotiating the contracts is slow going. But Ullrich sees some encouraging signs.
Titan Spine estimates that 475 surgeons — out of roughly 6,000 spine surgeons in the country — have used its products this year.
“That really is getting to the sort of tipping point,” he said.
The company has the additional challenge of making the transition to the new generation of devices. That means carrying an inventory for both generations of the devices. Most of its seven models come in more than 40 sizes — and they all have to be available.
Titan Spine also has about 850 surgical kits — at a cost of about $25,000 to $30,000 each — on consignment to hospitals or that it ships out by overnight delivery when a surgery with one of its devices is scheduled.
The kits alone represent an investment of more than $2 million.
“The capital cost on this is extreme,” Ullrich said.
The company also will need to do studies comparing the effectiveness of its devices to others.
The studies will take several years but should be relatively easy to do, said Brandon Rebholz, a spine surgeon and assistant professor at the Medical College of Wisconsin.
But Rebholz, who has used Titan Spine’s devices in surgery, said physicians were willing to try the first generation of the company’s devices and got good results. That should make it easier for them to move to the new generation of devices.
Titan Spine is certain to face more competition in coming years from companies introducing similar products. But it appears to have a head start — and apparently it has established some name recognition and maybe even buzz.
According to Hsu of Northwestern, “They are well-known and recognized as one of the experts in the particular segment of the field.”

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Startup completes trials of a 'living bandage' seeded with stem cells for meniscus repair

Stem cell ‘living bandage’ for knee injuries trialed in humans (Science Daily)
A ‘living bandage’ made from stem cells, which could revolutionize the treatment and prognosis of a common sporting knee injury, has been trialed in humans for the first time.
A ‘living bandage’ made from stem cells, which could revolutionise the treatment and prognosis of a common sporting knee injury, has been trialled in humans for the first time by scientists at the Universities of Liverpool and Bristol.

Meniscal tears are suffered by over one million people a year in the US and Europe alone and are particularly common in contact sports like football and rugby. 90% or more of tears occur in the white zone of meniscus which lacks a blood supply, making them difficult to repair. Many professional sports players opt to have the torn tissue removed altogether, risking osteoarthritis in later life.
The Cell Bandage has been developed by spin-out company Azellon, and is designed to enable the meniscal tear to repair itself by encouraging cell growth in the affected tissue.
A prototype version of the Cell Bandage was trialled in five patients, aged between 18 and 45, with white-zone meniscal tears. The trial received funding support from Innovate UK and the promising results have been published today in the journal Stem Cells Translational Medicine.
The procedure involved taking stem cells, harvested from the patient’s own bone marrow, which were then grown for two weeks before being seeded onto a membrane scaffold that helps to deliver the cells into the injured site. The manufactured Cell Bandage was then surgically implanted into the middle of the tear and the cartilage was sewn up around the bandage to keep it in place.
All five patients had an intact meniscus 12 months post implantation. By 24 months, three of the five patients retained an intact meniscus and had returned to normal knee functionality whilst the other two patients required surgical removal of the damaged meniscus due to a new tear or return of symptoms.
Professor Anthony Hollander, Chair of Stem Cell Biology at the University of Liverpool and Founder and Chief Scientific Officer of Azellon, said: “The Cell Bandage trial results are very encouraging and offer a potential alternative to surgical removal that will repair the damaged tissue and restore full knee function.
“We are currently developing an enhanced version of the Cell Bandage using donor stem cells, which will reduce the cost of the procedure and remove the need for two operations.”
The Cell Bandage was produced by the Advanced Therapies Unit at the NHS Blood & Transplant facility in Speke, Liverpool and implanted into patients at Southmead Hospital in Bristol, under the supervision of Professor Ashley Blom, Head of Orthopaedic Surgery at the University of Bristol.
Professor Blom commented: “The Cell Bandage offers an exciting potential new treatment option for surgeons that could particularly benefit younger patients and athletes by reducing the likelihood of early onset osteoarthritis after meniscectomy.”
A spokesperson for Innovate UK said: “Turning stem cell research into clinical and commercial reality requires close collaboration between businesses, universities, and Hospitals. It’s great to see this inter-disciplinary approach has led to such an exciting outcome from this first-in-human trial.”

Story Source:
Materials provided by University of Liverpool. Note: Content may be edited for style and length.

Journal Reference:

Anthony P. Hollander et al. Repair of Torn Avascular Meniscal Cartilage Using Undifferentiated Autologous Mesenchymal Stem Cells: From In Vitro Optimization to a First-in-Human Study. Stem Cells Translational Medicine, December 2016 DOI: 10.1002/sctm.16-0199

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