Tuesday, January 5, 2016

Top 10 medical innovations of 2015



 Cleveland Clinics announced the list of Top Ten Medical innovations of 2015. The list contains treatments and technologies that are expected to significantly change patient care and save lives and have a significant impact on a large part of the population.


The process starts with a panel of Cleveland Clinic physicians and scientists who submit their ideas. These suggestions, which Roizen said totaled about 700 for the 2015 list, are then narrowed down and voted on by 40 physicians in a variety of health fields. 


Here's what they selected for 2015:







Each year in the United States, nearly 800,000 people suffer a stroke, or a brain attack.



The Mobile stroke unit 








The inside of the mobile stroke unit


Strokes occur frequently: Once every 40 seconds, while every four minutes an American dies from stroke complications. Stroke is now the fourth leading cause of death in this country—and number one in much of the world. Although many people survive a stroke, even multiple episodes, stroke is still the number one cause of disability.

With the FDA approval in 1996 of the emergency stroke drug, tissue-type plasminogen activator, or r-tPA, doctors finally had a treatment for ischemic stroke—the most prevalent kind—that could effectively break up a blood clot that was hindering blood flow to the brain.

Time lost is brain lost and every second counts for stroke victims:  Each minute that goes by, it’s estimated that two million brain cells die. The faster t-PA is given after a stroke, the more effective and safer it is. Best given within an hour of arrival at a hospital, the intravenous drug may still be used in select patients up to 4.5 hours from symptom onset. The problem is that only 2 to 7 percent of people eligible for tPA ever get the clot-busting drug in this country

In order to improve stroke outcomes, a few hospitals in Germany and the United States are now using specially equipped mobile stroke treatment ambulances outfitted with all the necessary elements for the emergency evaluation and treatment of stroke and taking them on the road—bringing the highest level of care directly to the patient.
These high-tech ambulances, with onboard paramedic, critical care nurse, EMT, CT technologist, and virtual stroke neurologist (via telemedicine) are now bringing the emergency department straight to the patient with stroke symptoms—wherever he or she may be.

The goal is to preserve optimal brain function by performing a neurological evaluation, making an accurate diagnosis and administering tPA as soon as possible, occasionally as fast as 11 minutes after arrival on the scene. This prevents and often reverses the effects of stroke before they can lead to permanent brain injury.

The faster an ischemic stroke is recognized, the faster effective treatment can be administered. With the mobile stroke treatment unit, a special portable computed tomography (CT) scanner takes brain images in two minutes, which are then rapidly sent via a 4G broadband wireless link to hospital neurologists and neuroradiologists to interpret and yield a diagnosis. These doctors then prescribe and direct the treatment of the patient via the video hookup, and then triage the patient based on stroke type and severity to the appropriate hospital resource in the area.

After an ischemic stroke is detected, tPA therapy begins immediately in the ambulance, well before arrival at the hospital, dramatically cutting the time from diagnosis to treatment. Thanks to the mobile stroke unit, many survivors recover fully and regain their previous levels of function.

Mobile stroke treatment units have been in use in Ohio and Texas for over a year now, and have shown significant improvements in stroke treatment times. Studies examining patients who use the mobile stroke unit found that CT scans were accomplished 20 minutes sooner and the total treatment time was significantly reduced from an average of 104 minutes in the emergency room to 64 minutes. There is an ongoing study to determine the cost-effectiveness of this treatment option.









The World Health Organization reports that about half of the world's population is now at risk for dengue fever, and it is the fastest growing of all the mosquito born illnesses.
The biology of Dengue is very complex and has baffled researchers for decades.
A primary difficulty is that a vaccine would have to prevent four different but closely related viruses simultaneously—serotype 1, 2, 3, and 4. And while people can get infected with any virus, or all of them, immunity against one serotype does not provide immunity against any of the other three. Moreover, the prevalence of serotypes varies from region to region around the globe.
The world’s first vaccine against the dengue scourge has now been developed and tested. The vaccine worked in just-completed Phase III trials of children 2 to 14 in five areas across Asia. Almost 60 percent of the 6,000 children were protected against the disease compared to placebo injections after a three-shot, two-year period.
After 20 years of research, the dengue vaccine was made commercially available in the Philippines starting October 2015, with the potential to save the Philippian government $8.2 billion per year. Commercialization is expected to follow in 2016 for other countries where dengue hits hardest.



A new painless, more accurate, faster, and significantly less expensive blood testing method has arrived.






Gone are the needles and vials, replaced instead by a proprietary software and hardware technology that uses but a drop of blood from the capillaries at the end of a finger in a virtually painless procedure. The blood sample is wicked into a special nanotainer, which holds the equivalent amount of a raindrop.
Shipped to a special CLIA-certified laboratory, hundreds of different tests can now be performed from that one drop of blood, from standard cholesterol checks to sophisticated genetic analyses.

Blood results are then sent back to the requesting physician in a matter of hours. When further testing is needed, it can be done immediately, again with the same tiny blood sample.

Ultimately this enhanced diagnostic process will provide better information so diseases can be caught in their earliest stages, and treatment begun quickly.
Receiving FDA approval in June 2015, this blood testing platform that only needs a drop of blood now offers over 153 tests for under $10 each, usually at 50% of the typical insurance copay. After a recent deal, consumers can now get these tests performed at various drugstore locations across the nation.


 
New self-injectable drugs called PCSK9 inhibitors have shown to be very effective in lowering cholesterol. These drugs may prove to be helpful for people with high LDL cholesterol who don't have good results with statins. The FDA has  approved the first PCSK9 in 2015.


Praluent is a new injectable drug approved by the FDA to lower cholesterol.


There are now the PCSK9 inhibitors, a new class of cholesterol-lowering drugs that are self-injected once or twice a month. The medications work on the cholesterol receptor in the liver by a mechanism that is similar to statins, yet completely unique. The drugs not only reduce LDL cholesterol levels dramatically, but also take them to super low levels never seen before.

Study results with these complex monoclonal antibodies have reported promising data, with LDL cholesterol levels plummeting by as much as half to two-thirds in patients taking the medication versus those taking placebo. And when a PCSK9 was taken along with a statin, LDL levels were reduced by 75 percent.

There are now several PCSK9 drugs currently in various stages of development. This new class of cholesterol-reducing drug was approved by the FDA Advisory Board in June 2015. Doctors are ready to prescribe this drug to 17% of their patients with dangerously high LDL levels, potentially creating a $3 billion market.







courtesy: adcreview.com


A welcome breakthrough in the world of cancer treatment, antibody-drug conjugates can deliver targeted treatment without damaging healthy tissue.
The century-old dream of creating magic bullets to fight cancer is almost here. Antibody-drug conjugates represent a promising therapeutic approach for advanced cancer patients by combining the antigen-targeting specificity of monoclonal antibodies with the cytotoxic potency of chemotherapeutic medications that specifically target a protein only found in or around tumor cells, and then using this drug combination to destroy tumors. Think precision killing with fewer side effects.
With over two dozen antibody-drug conjugates currently in clinical trials for solid tumors and blood cancer, as well as potent FDA-approved drugs for advanced HER2-positive breast cancer and Hodgkin’s lymphoma already available, it is becoming clear that these smart bombs, the antibody-drug conjugates, are becoming an important and viable approach for selectively delivering highly cytotoxic agents to tumor cells while avoiding damage to normal tissue.
Currently there are over 350 antibody drug conjugates (ADCs) being developed to fight cancer, with previously approved drugs in trials to prove efficacy against a larger variety of cancers. Many pharmaceutical and research companies are investing millions of dollars into the growing ADC market, which is projected to reach $3 billion by 2018. 





Activated T-cell, immune checkpoint inhibitors .
www.pharmaceutical-journal.com
 


Immune checkpoint inhibitors have been shown to prevent cancer cells from "hiding" from the immune system, allowing the body to more effectively fight these abnormal cells. Combined with chemotherapy and radiation treatment, the drugs have shown significant, long-term cancer remissions for patients with metastatic melanoma, one of the most deadly forms of cancer.
Recently, however, interest in using the body’s immune system in the war on cancer has been heightened by the remarkable results achieved by a class of drugs called immune checkpoint inhibitors. These intravenous immunomodulators effectively block the action of proteins that act as brakes, or checkpoints, on cells, which allow cancer cells to hide from the immune system and survive. Once freed by the special checkpoint inhibitors, however, this permits certain white cells of the immune system, the killer T cells, most notably, to carry out their lethal attacks on marauding cancer cells.
Researchers are now combining checkpoint inhibitors with either chemotherapy or radiation in treating lung cancer, gastric cancer, pancreatic cancer, kidney, and breast cancer. By directly killing cancer cells with radiation or chemotherapy, it’s hypothesized that the addition of immunotherapy will help create special T cells that will remain and will be able to recognize and kill any returning cancer cells long after the initial treatment has stopped. With two drugs already approved for metastatic melanoma by the Food and Drug Administration (FDA), one of them two months earlier than expected, there is now increasing evidence that checkpoint inhibitors can work on a growing number of types of malignancies, including lung, kidney, bladder, ovarian, and head and neck cancers.
Three immune checkpoint inhibitors have been approved for use in patients with melanoma with sales of over $1.5 billion in 2014, and one has been granted priority review for use in lung cancer patients with its approval expected in 2016. Additionally, there are over 80 companies researching 148 immune checkpoint inhibitors associated with various cancers, with 10 in the last phase of clinical trials.





courtesy: emory.edu


Until this point, wires have been a necessary component in pacemakers. A new wireless pacemaker about the size of a vitamin can now be implanted in the heart without surgery. Its lithium-ion battery is estimated to last about seven years.
This wireless cardiac pacemaker that’s no bigger than a large vitamin is 10 percent the size of a traditional pacemaker. In the space of 15 to 30 minutes, the miniaturized battery-controlled device can be implanted directly in the heart without surgery by steering it through a femoral vein and up into the heart’s right ventricle.

Secured in place by prongs or a screw, a sensor electrode in the metal-clad device detects all heart rate information and relays it to the generator, which provides the necessary cardiac stimulation to keep the heart in regular rhythm.

Lithium battery life is estimated to be seven years or longer with the current miniaturized devices. The entire wireless pacemaker is fully retrievable via a catheter and a new one can be inserted when the battery wears out. Or, in lieu of replacement, another leadless pacemaker may simply be implanted when needed.

This pacemaker nanotechnology has eliminated surgery, lumps and scars on patient’s chest, restrictions on daily physical activities, as well as any complications stemming from any malfunctioning insulated connecting leads.
Not yet approved in the United States by the Food and Drug Administration (FDA), late-stage clinical trials of several leadless pacemakers for patients experiencing heart rhythm issues are now ongoing testing at scores of sites around the country, each in pursuit of FDA approval.
Two leadless pacemaker devices have now received the CE mark in Europe and are completing final stage trials in the US, with FDA approval expected in 2016.



Idiopathic pulmonary fibrosis is a life-threatening disease that causes scarring in the lungs, leading to breathing difficulties and a shortage of oxygen in the brain and other organs. Life expectancy is only three to five years after diagnosis, but those numbers may change now that the FDA has approved two experimental drugs that slow the disease: pirfenidone and nintedanib. There is now new hope for patients with IPF. Two new drugs have been proven in large international studies to significantly slow the progress of IPF.

The first oral drug, pirfenidone, slowed the disease progress after just 13 weeks of treatment in the one-year study compared to placebo therapy. The drug also enhanced lung function significantly, and improved the distance that a patient could walk. Overall, the drug reduced the risk of mortality by 48 percent compared to placebo.

While researchers aren’t sure how pirfenidone works against IPF, the drug appears to have anti-inflammatory properties and it also inhibits a growth factor protein in the development of fibrosis. The drug is already approved for use in Europe, Japan, and Canada, and the FDA just approved its use in the U.S.

In two Phase III studies of more than 1,000 patients, the second drug, nintedanib, reduced patients’ annual rate of lung function decline by 48 percent and 55 percent, compared to 5 percent for those taking placebo drug.

Nintedanib works by blocking the effect of tyrosine kinases, important proteins that alert the lungs to make scar tissue. Thanks to the FDA’s breakthrough therapy designation that guarantees speedy priority review, this drug was also recently approved for use in the United States.

Two new drugs in one year. People with IPF will finally be able to breathe easier.






Intrabeam radiotherapy treatment ( IORT)


The National Cancer Institute estimates that 40,000 women in the United States will die from breast cancer in 2014. The Cleveland Clinic cites multiple chemotherapy appointments, sometimes requiring the patient to travel long distances, as a hindrance to successful treatment. Intraoperative radiation therapy is a new solution. It treats a breast cancer tumor during surgery in a single dose, reducing time and cost spent on treatment.
A new advancement in breast cancer radiation therapy called intraoperative radiation therapy, or IORT, is a promising treatment that may help alleviate some of this burden for women with early-stage disease.

Used successfully for decades with a different type of radiation therapy as part of treatment for intra-abdominal cancers, a new type of IORT is now being used to deliver high doses of radiation during lumpectomies, concentrated only in the cavity where tumors were removed.

After excising the tumor and surrounding tissue from the breast, radiation is delivered through an applicator directly to the former tumor’s site, where the risk of cancer recurrence is highest.

Shielding of the rest of the body is not required as the radiation is focused only in the lumpectomy cavity and the focused radiation does not damage the heart or lungs—as can happen with whole breast radiation. After about 30 minutes of treatment, the applicator is removed.

The single dose of intraoperative radiation delivers a single very high dose of radiation to the area around the lumpectomy cavity—different from traditional whole breast radiation, which delivers multiple small doses over many days.

Based on the results of a large clinical trial, focusing the radiation on the tumor bed, IORT has been shown to be as effective as whole breast radiation for selected patients with early stage breast cancer: the rate of cancer recurrence is comparable after both forms. The study also showed the risk of skin toxicity is decreased after IORT compared to conventional radiation therapy.

Intraoperative radiation therapy is significantly less costly than standard whole breast radiation treatment. And with fewer trips made to the hospital for radiation therapy planning and radiation therapy and less time spent in treatment, intraoperative radiation therapy provides a significant boost to the quality of life for patients with early stage breast cancer.
IORT for a subset of breast cancer patients is a great alternative to save time and stress caused by traditional whole breast external beam radiation therapy, which usually consists of multiple sessions over a course of 3 weeks. However, recurrence rates for IORT patients were found to be at least double those of EBRT patients, and doctors are exercising caution while awaiting long-term study results before adopting this new method as a standard of care.







.
About 5.1 million people in the United States suffer from heart failure, according to the National Heart, Lung and Blood Institute. It is managed with a combination of drugs, but a new drug, angiotensin-receptor neprilysin inhibitor, has been granted fast-track status by the FDA because of its ability to cut the risk of dying from heart failure more effectively than current treatments.

Even though great strides have been made in diagnosis and treatment, the prognosis remains poor for people with heart failure. Less than 50 percent of patients are living five years after their initial diagnosis and less than 25 percent are alive at 10 years.

The consistent use of ACE (angiotensin-converting enzyme) inhibitors, which dilate blood vessels and allow the heart to function more efficiently along with the beta-blockers, which decrease the workload of the heart, has cut the risk of dying from heart failure in half.

However, there is now an experimental heart failure drug that has completely surprised the world of cardiology.

Used in an international study carried out with more than 8,000 patients in 47 countries, the largest ever heart failure study was stopped seven months early because a data review showed that this novel twice-daily drug reduced cardiovascular death rates or hospitalization due to heart failure by 20 percent compared to standard treatment with the ACE inhibitor enalapril, a generic drug that is one of the most widely prescribed treatments. And it also reduced the risk of death due to any cause 16 percent compared with the group taking enalapril.

The investigational drug, called an angiotensin-receptor neprilysin inhibitor, or ARNI, combines sacubitril, a neprilysin inhibitor, with angiotensin receptor blocker (ARB), and it improved outcome in patients who were currently receiving the best possible therapy.

In the study, this drug proved superior to the gold standard ACE inhibitor—and the gold standard dose—for heart failure.

This unique drug compound, which saves lives, reduces long-term health costs, and makes people feel better, may represent not only a major advance in pharmacological treatment but also a completely new paradigm shift in heart failure therapy.

The impressive survival advantage study finding provides strong support for using the new drug instead of ACE inhibitors in the treatment of chronic heart failure. Granted Fast Track status by the Food and Drug Administration, the heart drug was made available in 2015 in the United States.
 In studies, this drug was found to reduce risk of cardiovascular death by 20% and HF related hospitalization by 21% when compared to standard treatment. While this treatment option is projected to be more expensive than current standard care, sales are expected to be in the billions by 2019.


References:
http://www.cnn.com/2014/10/31/health/cleveland-clinic-medical-innovations/








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