Smoking Marijuana More Effective Than CBD Extracts for Back Pain

By Pat Anson, PNN Editor

One of the reasons many medical marijuana users prefer edibles over smoking is that they are perceived as healthier.  Marijuana smoke contains many of the same chemicals and carcinogens as cigarette smoke, and could have harmful effects on people with respiratory or cardiovascular problems.

But a small new study conducted in Israel found that smoking marijuana is better than ingesting it, at least when it comes to treating chronic lower back pain. Researchers enrolled 24 adults with MRI or CT scans that showed evidence of disc herniation or spinal stenosis, and had them try two different types of cannabis treatment.

The first was a cannabis extract rich in cannabidiol (CBD), which was taken sublingually under the tongue daily for 10 months. After a month of no treatment, the same group smoked cannabis flowers rich in tetrahydrocannabinol (THC) up to four times a day for 12 months. Participants were allowed to take pain medication as needed, including oxycodone and acetaminophen.

The study findings, published in the Rambam Maimonides Medical Journal, showed there was little to no improvement in back pain when participants took the extract, but significant improvement when they smoked cannabis. The use of analgesic drugs also dropped significantly while smoking.

Notably, three patients dropped out of the extract phase of the study because it wasn’t helping them, but then returned to participate in the smoking phase.

“The current study is the first, to our knowledge, to indicate that THC-rich smoked therapy is more advantageous in ameliorating LBP (lower back pain), than low THC CBD-rich sublingual extracts. Despite the small number of patients, our data indicate that THC-rich smoked therapy is helpful in mitigating LBP,” researchers reported.

The most commonly reported adverse events during the study were nausea, dizziness, drowsiness and fatigue during the extract phase; sore throat and drowsiness were reported during the smoking phase. All of the adverse symptoms disappeared after a dose tolerance was reached. Most of the adverse effects were in female patients.

A 2019 study of medical marijuana users also found that smoking cannabis provided more pain relief than ingesting it. Over 3,300 people logged their symptoms on a mobile app while using a variety of cannabis products, including dried flower, edibles, tinctures and ointments. Smoking the dried flower provided more pain relief than any other cannabis product, regardless of the amount of THC.

Another problem with CBD edibles is that they are frequently mislabeled. A recent study of 80 CBD oils found that only 43 had concentrations of cannabidiols that were within 10% of their label claims – an accuracy rate of just 54 percent.

Newly Discovered Gut Bacteria Linked to Rheumatoid Arthritis

By Meagan Chriswell, University of Colorado Medicine

Rheumatoid arthritis affects 1 in 100 people worldwide. It causes inflamed, painful and swollen joints, often in the hands and wrists, and can lead to loss of joint function as well as chronic pain and joint deformities and damage. What causes this condition has been unknown.

In our recently published study, my colleagues and I found an important clue to a potential culprit behind this disease: the bacteria in your gut.

Rheumatoid arthritis is an autoimmune condition, meaning it develops when the body’s immune system starts to attack itself. Proteins called antibodies, which usually help fight off viruses and bacteria, begin to attack the joints instead.

The origins of the antibodies that cause rheumatoid arthritis have been an area of study for many years. Some research has shown that these antibodies can start forming at sites like the mouth, lung and intestines over 10 years before symptoms arise. But until now, it was unclear why researchers were finding these antibodies in these particular areas.

We wanted to investigate what could trigger the formation of these antibodies. Specifically, we wondered if bacteria in the microbiome, a community of microorganisms that live in the intestines, might be the ones activating the immune response that leads to rheumatoid arthritis.

Since microbes commonly live at the same sites as the antibodies driving rheumatoid arthritis, we hypothesized that these bacteria could be triggering the production of these antibodies. We reasoned that though these antibodies were meant to attack the bacteria, rheumatoid arthritis develops when they spread beyond the intestines to attack the joints.

First, we sought to identify the intestinal bacteria targeted by these antibodies. To do this, we exposed the bacteria in the feces of a subset of people at risk for developing rheumatoid arthritis to these antibodies, allowing us to isolate just the bacterial species that reacted and bound to the antibodies.

We found that one previously unknown species of bacteria was present in the intestines of around 20% of people who were either diagnosed with rheumatoid arthritis or produce the antibodies that cause the disease.

As a member of the Cherokee Nation of Oklahoma, I suggested we name this species Subdoligranulum didolesgii (“didolesgii” means arthritis or rheumatism in Cherokee) as a nod to the contributions that other Indigenous scholars have made to science as well as the fact that rheumatoid arthritis affects Indigenous people at a higher rate than other populations.

Subdoligranulum didolesgii has not been detected in the feces of healthy people before, and it is currently unknown how prevalent this bacteria is in the general population.

We also found that these bacteria can activate specialized immune cells called T cells in people with rheumatoid arthritis. T cells drive inflammatory responses in the body, and have been linked to the development of different autoimmune diseases.

These findings suggest that these gut bacteria may be activating the immune systems of people with rheumatoid arthritis. But instead of attacking the bacteria, their immune system attacks the joints.

Why This Bacteria?

It is still unknown why people with rheumatoid arthritis develop an immune response to Subdoligranulum didolesgii. But we think it may be the culprit when it comes to rheumatoid arthritis because this bacteria is found only in the intestines of people with rheumatoid arthritis, and not in the intestines of healthy people.

While many immune responses happen in the intestines, they are usually self-contained and do not spread to other areas of the body. However, we believe that a particularly strong intestinal immune response against Subdoligranulum didolesgii could allow antibodies to bypass the intestinal “firewall” and spread to the joints.

To confirm our hypothesis, we gave mice an oral dose of Subdoligranulum didolesgii and monitored their reaction. Within 14 days, the mice began to develop joint swelling and antibodies that attacked their joints.

My colleagues and I hope this research can shed light on the origins of rheumatoid arthritis. Our next goal is to discover how common these bacteria are in the general population and test whether the presence of these bacteria in the gut may lead to the development of rheumatoid arthritis in people.

It’s important to note that antibiotics are unlikely to be helpful treatment for the microbiomes of patients with rheumatoid arthritis. Although Subdoligranulum didolesgii may be triggering an autoimmune response for some people with rheumatoid arthritis, antibiotics eliminate both helpful and harmful bacteria in the gut. Additionally, removing the bacteria won’t necessarily stop the immune system from attacking the joints once it has started.

Nevertheless, we believe that these bacteria can be used as tools to develop treatments for rheumatoid arthritis and hopefully ways to prevent disease from happening in the first place.

Meagan Chriswell is a MD/PhD Candidate in Immunology at the University of Colorado Anschutz Medical Campus. She does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article.

This article originally appeared in The Conversation and is republished with permission.

‘Super High Concentration’ of Kratom Involved in Georgia Man’s Death

By Pat Anson, PNN Editor

The family of a 23-year-old Georgia man who died last year after ingesting a potent kratom extract has filed a wrongful death lawsuit against a kratom manufacturer and a trade association that promotes the company for following good manufacturing standards.

Ethan Pope was found dead on the kitchen floor of his apartment on December 3, with his dog by his side. Pope had recently purchased bottles of Black Liquid Kratom made by Optimized Plant Mediated Solutions (OPMS).

An autopsy concluded that Pope died as a result of cardiac arrest due to mitragynine intoxication, and his death was ruled an accident by the Georgia Bureau of Investigation.

Mitragynine is an alkaloid and one of the active ingredients in kratom, which comes from the leaves of a tree that grows in Southeast Asia, where it has been used for centuries as a natural stimulant and pain reliever.

ETHAN POPE

In recent years, kratom has become a popular supplement in the United States, where it is used by millions of people to self-treat their pain, anxiety, depression and substance use problems. It is sold legally in most states, including Georgia, where it can be purchased at gas stations and smoke shops.

Kratom is normally consumed as a dry unadulterated powder, but the Black Liquid Kratom allegedly consumed by Pope is a highly concentrated 50:1 extract, with up to 375mg mitragynine per bottle.

“This super high concentration can be felt with just a drop or two of the extract added to your tea or coffee. Even veteran users of kratom should start slow with this liquid extract because it is so different from other liquid extracts on the market,” is how one kratom vendor markets Black Liquid Kratom.

Another kratom vendor specifically cautions that OPMS extracts are “too strong for use on a daily basis.”

It’s not clear how long, how often or why Pope had been taking kratom, but at a news conference this week his parents said they found a to-do list in his apartment that included the words “Stop taking kratom.”

The family’s lawsuit was originally filed in May and an amended complaint was filed this week, naming over a dozen different individuals, vendors and organizations, including OPMS and the American Kratom Association (AKA).    

“You don’t expect to go into a store and find something similar to heroin between energy drinks and breath mints. We intend to hold every single person and entity involved in the distribution and sale of these products responsible,” attorney Matt Wetherington said in a statement.

The lawsuit drafted by Wetherington makes frequent references to kratom as a heroin-like substance, but there is no relationship between the two. Heroin is derived from opium plants, while kratom comes from mitragynine speciosa trees. Both act on opioid receptors in the brain, however, which has led to claims that kratom is an opioid.

OPMS has not commented publicly on the lawsuit, and the AKA issued a short statement saying it rejected the lawsuit’s claims and filed a motion to be dismissed from the case.

‘100% Natural and Never Adulterated’

OPMS is featured on the AKA’s website as one of the first kratom vendors to comply with its Good Manufacturing Practice Standards Program (GMP), an effort to enhance the safety of kratom products. To get “GMP Qualified” status, vendors have to agree to annual audits, inspections and testing of every production lot of kratom.    

“Optimized Plant Mediated Solutions has been the leader in the Kratom and Kava extract industry since 2010 due to its unique cold water extraction process. All O.P.M.S. products are 100 percent natural and never adulterated,” the AKA says on its website, which includes a link where OPMS products can be purchased directly from the company.

OPMS did not immediately respond to a request for comment from PNN. The company’s website cautions consumers that “several companies illegally counterfeit” its products, adding “dangerous ingredients” that pose a “serious health threat.” It urges consumers to report any suspicious products.

Taken in low doses, kratom acts as a mild analgesic and stimulant. Consumers generally take higher doses to combat severe pain and cravings caused by substance addiction. Most users do not experience a “high” or euphoria after taking kratom.

The Food and Drug Administration has not approved kratom for any medical use and vendors can run into trouble with the agency if they claim kratom can be used to treat health conditions. The FDA tried for years -- unsuccessfully – to schedule kratom as a controlled substance, which would effectively ban its sale and use in the United States. The FDA says kratom’s effects on the brain are similar to morphine and that kratom has “properties that expose users to the risks of addiction, abuse, and dependence.”

Not all federal agencies take such a dim view of kratom. A 2020 study funded by the National Institute on Drug Abuse concluded that kratom is an effective treatment for pain, helps users reduce their use of opioids, and has a low risk of adverse effects.

About 100 deaths have been linked to kratom use, but in the vast majority of cases other drugs and illicit substances were involved.  A toxicology test on Ethan Pope found antihistamine and antidepressant medications in his system, but no illegal drugs or alcohol were detected.

Brain Changes Found in Patients with Long-Term Lyme Disease

By Pat Anson, PNN Editor

Researchers at Johns Hopkins University have documented changes in the brains of patients with post-treatment Lyme disease that may explain symptoms such as brain fog, memory loss and other cognitive issues. The finding could also have implications for patients with long covid, fibromyalgia, multiple sclerosis, chronic fatigue and other health conditions who have cognitive problems.    

Lyme disease is a bacterial illness spread by ticks that causes a rash, flu-like aches and fever, joint pain and fatigue. Most patients fully recover when treated early with antibiotics, but up to 20% of those with post-treatment Lyme disease (PTLD) have long-term symptoms, including depression, insomnia and cognitive difficulties. There is usually no clinical or laboratory evidence to explain their ongoing issues.

“Objective biologic measures of post-treatment Lyme symptoms typically can’t be identified using regular MRIs, CT scans, or blood tests,” says John Aucott, MD., director of the Johns Hopkins Lyme Disease Clinical Research Center.

Aucott and his colleagues recruited 12 PTLD patients and 18 people without a history of Lyme to undergo functional MRI (fMRI) scans while performing a short-term memory task. The scans allow investigators to track blood flow and other changes in the brain in real time.

Their findings, published in the journal PLOS ONE, suggest that cognitive difficulties in PTLD patients are linked to functional and structural changes in the “white matter” of the brain, which is crucial for processing and relaying information. The imaging tests revealed unusual activity in the frontal lobe, an area of the brain responsible for memory recall and concentration. Patients with post-treatment Lyme needed longer periods of time to complete the memory task.

“We saw certain areas in the frontal lobe under-activating and others that were over-activating, which was somewhat expected,” said lead author Cherie Marvel, PhD, an associate professor of neurology at Johns Hopkins.

“However, we didn’t see this same white matter activity in the group without post-treatment Lyme.”

To confirm their finding, researchers used another form of imaging called diffusion tensor imaging (DTI) on all 12 patients with Lyme and 12 of the non-Lyme participants. DTI detects the direction of water movement within brain tissue. Water was diffusing, or leaking, in the the same white matter regions identified in the fMRI.

Researchers believe the increased activity they saw in white matter may reflect an immune system response in the PTLD patients, which may also explain cognitive issues in patients with other chronic health conditions.

PLOS ONE

“Results reported here may have implications for other diseases in which white matter pathology has been demonstrated (e.g., multiple sclerosis) or in illnesses in which cognitive complaints follow disease onset,” researchers said. “The use of multimodal neuroimaging methods, like the ones used in the current study, may be a viable approach for obtaining information on brain function and structure to identify biomarkers of disease burden.”

Researchers say larger studies with more patients will be needed to confirm their findings, as well as long-term tracking of brain changes from the initial Lyme infection through development of PTLD.

Nearly 500,000 people are believed to get Lyme disease each year in the United States. Diagnoses of Lyme have soared over the past 15 years, according to a recent analysis of insurance claims that found Lyme cases rose 357% in rural areas and 65% in urban areas. The highest rates of Lyme were in New Jersey, Vermont, Maine, Rhode Island and Connecticut.

Deaths of Intractable Pain Patients Often Mistaken as Overdoses

By Dr. Forest Tennant, PNN Columnist

Unexpected and sudden death commonly occur in persons who have poorly controlled pain caused by Intractable Pain Syndrome (IPS). Many persons with IPS who have died unexpectedly have been falsely accused of an “overdose” because drugs were found in their body fluids at autopsy. In reality, the cause was almost always cardiac arrest, hypoglycemia or adrenal failure.

Cardiac Arrest

Pain flares during cardiac arrest may cause the adrenal glands to pump out so much adrenalin that their blood pressure and pulse rate jump up dramatically. This causes blood vessels, including the coronary arteries and those in the brain, to constrict and shut off blood flow. The result may be a heart attack, stroke or arrhythmia.

Chronic, recurrent coronary constriction may cause heart pain called “angina.” A person with IPS who has their medications, usually opioids or benzodiazepines, reduced too rapidly is very prone to cardiac arrhythmia and cardiac arrest.

Hypoglycemia

Insulin is normally made and secreted by the pancreas to lower blood sugar in order to digest food and stabilize metabolism. In times of pain, cortisol and blood sugar are raised. When this occurs, insulin is pumped out by the pancreas to heal injured or damaged tissues. Too much insulin caused by a pain flare can force blood sugar to drop to such a low level – a condition known as hypoglycemia -- that death may occur.

The long-term effect of constant pain on the pancreas is an insulin deficiency, so high blood sugar levels (diabetes) are regularly found in persons with IPS.

Adrenal Failure

Uncontrolled constant pain may exhaust the adrenal glands to a point that the hormone cortisol drops too low, causing Addison’s disease or adrenal insufficiency. Symptoms such as darkened skin, abdominal pain and weakness usually appear slowly, but if there’s rapid onset of symptoms it could lead to adrenal failure and death.

Addison’s Disease is named after Dr. Thomas Addison, who described 11 cases of adrenal failure in 1855. About half his cases had histories of severe pain. Persons who die of adrenal failure often do so in their sleep.

Many persons with IPS have unexpectedly and suddenly died and have been falsely accused of drug overdose. To prevent sudden death, persons with IPS must be in a pain treatment program that is balanced and doesn’t rely just on just one or two medications.

Forest Tennant, MD, DrPH, is retired from clinical practice but continues his research on the treatment of intractable pain and arachnoiditis. This column is adapted from a bulletin recently issued by the Intractable Pain Syndrome Research and Education Project.

The Tennant Foundation gives financial support to Pain News Network and sponsors PNN’s Patient Resources section.   

Green Eyeglasses Improve Anxiety and Wellness in Fibromyalgia Patients

By Pat Anson, PNN Editor

Fibromyalgia is well known as one of the most difficult chronic pain conditions to treat. The Food and Drug Administration has approved a handful of medications for fibromyalgia, but many patients find them ineffective in treating the muscles aches, joint pain, fatigue, anxiety and other symptoms that are common in fibromyalgia.  

Researchers at Duke University may have found an easy way to reduce some of those symptoms without the use of drugs. In a small study of fibromyalgia patients being treated with opioids, those who wore eyeglasses with specially tinted green lenses reported a significant improvement in their anxiety and overall sense of wellness. And while their pain levels were unchanged, their use of opioids declined.

“My research has been focused heavily on finding alternatives to opioids for pain management,” says lead author Padma Gulur, MD, Executive Vice Chair of the Department of Anesthesiology at Duke University. “One of the things we discovered early on was that there were visually mediated triggers for pain. We definitely could see that with headaches, but also that it could actually impact pain itself, the pain pathways. While we still don’t fully understand the mechanism of how pathways for pain get activated with visual mediation, it definitely does happen.

“We narrowed it down over some years to the hypothesis that with green light, particularly in the green spectrum, there was an opportunity where it was influencing pain, both chronic pain and acute pain.”

Previous research has found that green light therapy has a calming effect on the brain and is useful in treating fibromyalgia and migraines. But in those studies, participants were confined to a room where they were immersed in green light and told to avoid activities like watching TV or using their cellphones.

Gulur thought there must be an easier way to experience the benefits of green light.

“People want pain relief, but they also want to live their lives. And spending hours and hours in a room or exposure takes away from that quality of life,” she told PNN. “On the other hand, wearing eyeglasses is something we’re all very comfortable doing and, thankfully these days, colored eyeglasses are all the thing.”

Gulur and her colleagues studied 34 fibromyalgia patients who were randomly selected to wear various shades of eyeglasses at least four hours a day for two weeks: 10 patients wore blue eyeglasses, 12 wore clear eyeglasses and 12 wore green eyeglasses.

DUKE UNIVERSITY

Their findings, presented this week at the annual meeting of the American Society of Anesthesiologists, showed that participants who wore green eyeglasses were four times more likely to have reduced anxiety than those in the other two groups, who reported no reduction in anxiety. They also reported feeling better.

“We found that although their pain scores remained the same, those who wore the green eyeglasses used fewer opioids, demonstrating that their pain was adequately controlled,” said Gulur, who noted that patients who wore the green eyeglasses asked if they could keep them at the end of the study.

“They didn’t want to give them back. We had no trouble getting the blue and the clear back, but none of them wanted to return the green glasses.”

Unfortunately, they had to give them back. The eyeglasses are specially formulated to filter a specific wavelength on the green light spectrum and were needed for further study. You can’t buy the glasses online or at your local drug store. At least not yet.

Gulur and her team are planning further studies with green eyeglasses on patients with diabetic neuropathy and chronic back pain.

Lab Mice Agree: Delta-8 Just Like Taking Delta-9

By Pat Anson, PNN Editor

Laboratory mice at a research facility have figured out something that Congress failed to do when it legalized hemp in 2018: the tetrahydrocannabinol (THC) found in hemp can get you just as high as the THC found in marijuana.

That finding, in a new study led by researchers at the University of Connecticut, undermines one of the tenets of the 2018 Farm Bill, which made it possible for U.S. farmers to grow hemp again as a cash crop. The thinking at the time was that since hemp contained less than 0.3% tetrahydrocannabinol, the main psychoactive ingredient in marijuana, it couldn’t be used to get high.

The mice found otherwise. When given Delta-8 THC derived from hemp twice a day for five days, the mice showed signs of lethargy, dependence and “liking” behavior. Although not as potent as the Delta-9 THC derived from marijuana, researchers reported in the journal Drug and Alcohol Dependence that Delta-8 had similar psychoactive effects on the mice, “including evidence of dependence and abuse potential.”

“So they’re telling us the same thing people buying the stuff in gas stations tell us: (Delta-8) feels like THC,” says Steve Kinsey, PhD, a UConn School of Nursing professor and director of the Center for Advancement in Managing Pain.

Kinsey and his colleagues say Delta-8 and Delta-9 molecules are similar and act in the same way on the body. But while Delta-9 is illegal under federal law, Delta-8 is legally being sold in a wide array of edibles, beverages, tinctures and other products. Because they are made with CBD and THC derived from hemp, they can be purchased without an ID or marijuana prescription – even in states where medical or recreational marijuana is illegal.  A recent study found that some hemp-based edibles have 360% more THC than those sold in cannabis dispensaries.

“It’s creating a fight between marijuana and hemp” growers, says John Harloe, an attorney on a Colorado taskforce that is trying to address the different chemical variations of THC and their hazy legal status.

“(Marijuana) must be sold through dispensaries and pay high taxes, while hemp producers can sell essentially the same product but without the same regulations, due to the ambiguity in the Farm Bill,” Harloe said in a statement.

The Food and Drug Administration has been slow to regulate CBD products, but earlier this year the agency sent the first warning letters to companies for selling products containing Delta-8. The letters don’t take issue with Delta-8’s legal status, but focus instead on its unauthorized marketing as a treatment for chronic pain, nausea, anxiety and even cancer.

Experimental Vaccines Target Epstein-Barr Virus

By Liz Szabo, Kaiser Health News

Maybe you’ve never heard of the Epstein-Barr virus. But it knows all about you.

Chances are, it’s living inside you right now. About 95% of American adults are infected sometime in their lives. And once infected, the virus stays with you.

Most viruses, such as influenza, just come and go. A healthy immune system attacks them, kills them, and prevents them from sickening you again. Epstein-Barr and its cousins, including the viruses that cause chickenpox and herpes, can hibernate inside your cells for decades.

This viral family has “evolved with us for millions of years,” said Blossom Damania, a virologist at the University of North Carolina-Chapel Hill. “They know all your body’s secrets.”

Although childhood Epstein-Barr infections are typically mild, exposure in teens and young adults can lead to infectious mononucleosis, a weeks-long illness that sickens 125,000 Americans a year, causing sore throats, swollen glands, and extreme fatigue. And while Epstein-Barr spends most of its time sleeping, it can reawaken during times of stress or when the immune system is off its game. Those reactivations are linked to a long list of serious health conditions, including several types of cancer and autoimmune diseases.

Scientists have spent years trying to develop vaccines against Epstein-Barr, or EBV. But recently several leaps in medical research have provided more urgency to the quest — and more hope for success. In just the past year, two experimental vaccine efforts have made it to human clinical trials.

What’s changed?

First, the Epstein-Barr virus has been shown to present an even greater threat. New research firmly links it to multiple sclerosis, or MS, a potentially disabling chronic disease that afflicts more than 900,000 Americans and 2.8 million people worldwide.

The journal Science in January published results from a landmark 20-year study of 10 million military personnel that offers the strongest evidence yet that Epstein-Barr can trigger MS. The new study found that people infected with Epstein-Barr are 32 times as likely as people not infected to develop MS.

And shedding new light on the mechanisms that could explain that correlation, a separate group of scientists published a study in Nature describing how the virus can cause an autoimmune reaction that leads to MS.

The disease, which usually strikes between ages 20 and 40, disrupts communication between the brain and other parts of the body and is often marked by recurring episodes of extreme fatigue, blurred vision, muscle weakness, and difficulty with balance and coordination. At its worst, MS can lead to impaired speech and paralysis.

“Now that we know that Epstein-Barr is very tightly linked to MS, we could save a lot of lives if we develop the vaccine now.”

— Blossom Damania, Virologist

Amplifying that newfound urgency, several new studies suggest that reactivation of the Epstein-Barr virus also is involved with some cases of long covid, a little-understood condition in which patients experience lingering symptoms that often resemble mononucleosis.

And just as crucial to the momentum: Advances in vaccine science spurred by the pandemic, including the mRNA technology used in some covid vaccines, could accelerate development of other vaccines, including ones against Epstein-Barr, said Dr. Peter Hotez, dean of the National School of Tropical Medicine at Baylor College of Medicine. Hotez co-created a low-cost, patent-free covid vaccine called Corbevax.

Some researchers question the need for a vaccine that targets a disease like MS that, while debilitating, remains relatively rare.

Eliminating Epstein-Barr would require vaccinating all healthy children even though their risk of developing cancer or multiple sclerosis is small, said Dr. Ralph Horwitz, a professor at the Lewis Katz School of Medicine at Temple University.

Before exposing children to the potential risks of a new vaccine, he said, scientists need to answer basic questions about MS. For example, why does a virus that affects nearly everyone cause disease in a small fraction? And what roles do stress and other environmental conditions play in that equation?

The answer appears to be that Epstein-Barr is “necessary but not sufficient” to cause disease, said immunologist Bruce Bebo, executive vice president for research at the National MS Society, adding that the virus “may be the first in a string of dominoes.”

‘We Could Save a Lot of Lives’

Hotez said researchers could continue to probe the mysteries surrounding Epstein-Barr and MS even as the vaccine efforts proceed. Further study is required to understand which populations might benefit most from a vaccine, and once more is known, Hotez said, such a vaccine possibly could be used in patients found to be at highest risk, such as organ transplant recipients, rather than administered universally to all young people.

“Now that we know that Epstein-Barr is very tightly linked to MS, we could save a lot of lives if we develop the vaccine now,” Damania said, “rather than wait 10 years” until every question is answered.

Moderna and the National Institute of Allergy and Infectious Diseases launched separate clinical trials of Epstein-Barr vaccines over the past year. Epstein-Barr vaccines also are in early stages of testing at Opko Health, a Miami-based biotech company; Seattle’s Fred Hutchinson Cancer Center; and California’s City of Hope National Medical Center.

Scientists have sought to develop vaccines against Epstein-Barr for decades only to be thwarted by the complexities of the virus. Epstein-Barr “is a master of evading the immune system,” said Dr. Jessica Durkee-Shock, a clinical immunologist and principal investigator for NIAID’s trial.

Both MS and the cancers linked to Epstein-Barr develop many years after people are infected. So a trial designed to learn whether a vaccine can prevent these diseases would take decades and a lot of money.

Moderna researchers initially are focusing on a goal more easily measured: the prevention of mononucleosis, which doubles the risk of multiple sclerosis. Mono develops only a month or so after people are infected with Epstein-Barr, so scientists won’t have to wait as long for results.

Mono can be incredibly disruptive on its own, keeping students out of class and military recruits out of training for weeks. In about 10% of cases, the crippling fatigue lasts six months or more. In 1% of cases, patients develop complications, including hepatitis and neurological problems.

For now, the clinical trials for Epstein-Barr immunizations are enrolling only adults. “In the future, the perfect vaccine would be given to a small child,” Durkee-Shock said. “And it would protect them their whole life, and prevent them from getting mono or any other complication from the Epstein-Barr virus.”

The NIAID vaccine, being tested for safety in 40 volunteers, is built around ferritin, an iron-storage protein that can be manipulated to display a key viral protein to the immune system. Like a cartoon Transformer, the ferritin nanoparticle self-assembles into what looks like a “little iron soccer ball,” Durkee-Shock said. “This approach, in which many copies of the EBV protein are displayed on a single particle, has proved successful for other vaccines, including the HPV and hepatitis B vaccine.”

Moderna’s experimental vaccine, being tested in about 270 people, works more like the company’s covid shot. Both deliver snippets of a virus’s genetic information in molecules called mRNA inside a lipid nanoparticle, or tiny bubble of fat. Moderna, which has dozens of mRNA vaccines in development, hopes to learn from each and apply those lessons to Epstein-Barr, said Sumana Chandramouli, senior director and research program leader for infectious diseases at Moderna.

“What the covid vaccine has shown us is that the mRNA technology is well tolerated, very safe, and highly efficacious,” Chandramouli said.

But mRNA vaccines have limitations.

Although they have saved millions of lives during the covid pandemic, the antibody levels generated in response to the mRNA vaccines wane after a few months. It’s possible this rapid loss of antibodies is related specifically to the coronavirus and its rapidly evolving new strains, Hotez said. But if waning immunity is inherent in the mRNA technology, that could seriously limit future vaccines.

Designing vaccines against Epstein-Barr is also more complicated than for covid. The Epstein-Barr virus and other herpesviruses are comparatively huge, four to five times as large as SARS-CoV-2, the coronavirus that causes covid. And while the coronavirus uses just one protein to infect human cells, the Epstein-Barr virus uses many, four of which are included in the Moderna vaccine.

Earlier experimental Epstein-Barr vaccines targeting one viral protein lowered the rate of infectious mononucleosis but failed to prevent viral infection. Targeting multiple viral proteins may be more effective at preventing infection, said Damania, the UNC virologist.

“If you close one door, the other door is still open,” Damania said. “You have to block infection in all cell types to have a successful vaccine that prevents future infections.”

Kaiser Health News is a national newsroom that produces in-depth journalism about health issues.

Thinking Outside the Pill Box: Another Approach to Pain Management

By Alon Ironi, CEO, Theranica Bio-Electronics

Well into my adulthood, I struggled with chronic back pain. I took medication after medication, finding myself getting sucked into the habit of popping painkillers and wondering why my pain wasn’t healing. I eventually discovered the psychological and mental elements inherent in chronic pain, and shifted my approach to pain management, which rapidly cured my back pain.  

The holistic approach to healing pain has historically been ridiculed in the medical community, preventing many physicians from recognizing the legitimacy of alternative treatments. The time has come to evolve beyond just popping pills to treat pain, towards a biopsychosocial perspective.  

The discovery and introduction of penicillin in 1928, marked the very beginning of medication popularization in the West. The development of new medications – for a wide range of uses - has extended life span and improved quality of life.  Unfortunately, the benefits associated with medication have encouraged its frequent use for disorders it simply is not meant for, such as certain types of chronic pain.  

Medication overuse headache is one example where drugs intended to treat migraine and headache can, with excessive use, lead to the deterioration of the exact condition they are supposed to be treating. Medication is an incredible tool when used properly, but it’s not the only tool, and it can be seriously harmful when misapplied.

What is Pain and How Do We Treat It? 

Pain is a unique bodily experience that, unlike other disorders, indicates an underlying issue in one’s physiology. Pain is an alarm system. It tells us that something is wrong, and if we mask it without treating its underlying cause, we might cause a great disservice to our bodies.  

The use of medication to treat short-term acute pain, while a person simultaneously heals from the cause of that pain, like a pulled muscle or a tear in a tissue, makes sense. However, the use of medication in instances of chronic pain - pain that persists longer than three months - is problematic.  

Chronic pain is a debilitating condition that impacts an individual’s everyday life. From migraine to chronic knee pain to chronic back pain, the routine of normal life is disrupted. Often, this chronic pain had an initial cause, such as a surgery, fall or injury that has since healed, but the pain persists long after its source has disappeared. This type of pain, as Haider Warraich, a physician and clinical researcher at Harvard, so aptly puts it, is like “an overlearned traumatic memory that keeps ricocheting around in our brains, often long after the injury it rehearses has fully healed.” 

This perception of chronic pain has its roots in quite a controversial physician -the late Jon Sarno, MD, a professor of rehabilitation medicine in the 1980’s and 90’s. His theories, while not rigorously proven in formal clinical studies, were built upon anecdotal data from thousands of patients he treated during his lifetime and are still being explored today. They have jumpstarted a revolution in our understanding of pain.  

The biopsychosocial model focuses on illness as a complex interaction of chemical and electrical reactions that are induced by biological, psychological and social factors. Contemporary pain researchers, like Lorimer Mosely, a clinical scientist, have applied this model to pain, recognizing that pain is comprised of both physical sensation and emotional stimulus, such as the fear of pain itself.  

Pain is no longer perceived as entirely “physical” in nature. It is now understood to be exacerbated by the fear of tissue damage and the aversion to previously experienced pain. As clinical research develops and shifts its focus to a more biopsychosocial approach to illness and pain, doctors must re-evaluate their first-line treatment suggestions. 

Drug-Free Pain Management 

Based on this new perception of pain, several nonpharmacological treatment methods for pain management have been developed. One approach is a purely psychological treatment called cognitive behavioral therapy, a form of talk therapy that discourages negative thoughts associated with pain and trains people to adhere to thoughts that stimulate the body’s natural pain relief system. Another example of nonpharmacological pain treatment is massage therapy,  which addresses pain by releasing muscle tension.  

Neuromodulation is highly effective in treating certain pain disorders through the use of electrical stimulation to modulate pain pathways in the neural system.  Several forms of neuromodulation treatment exist today, with different mechanisms of action and efficacy.  

Spinal cord stimulation, for example, is used to treat back pain and leg pain. But it is highly invasive, with electrodes surgically placed near the spinal cord to send electrical currents to the spine.

Deep brain stimulation is being studied for the relief of chronic pain, but it is also quite invasive, as it involves implanting electrodes into the brain.  

Nerivio is a non-invasive, wearable neuromodulation device made by my company that is FDA-approved for the treatment of acute migraine. Nerivio is self-applied to the upper arm, where it uses remote electrical neuromodulation (REN) to stimulate analgesic neurotransmitters in the pain pathways of migraine. In clinical trials, Nerivio and other REN devices have been shown to be just as effective as pharmacological treatments.  

To be clear, medication is a necessary and beneficial tool for treating infections, reducing fever, managing sickness and much more. However, its use in chronic pain management is sometimes misplaced, especially at a time when newer non-drug therapies are emerging.  

The holistic approach to pain management is the future. It considers the balance and context of a patient’s life and combines multiple modalities for their treatment. People are multifaceted and their treatment should be multifaceted as well. It is my hope and vision that this field of research will continue to develop and will soon be widely embraced by most medical professionals.  

Having experienced the benefits of drug-free pain management first-hand, I truly hope that health care systems will support patients in accessing these much-needed alternative treatments to improve quality of care and life.  

Alon Ironi is the CEO and co-founder of Theranica Bio-Electronics, the developer of Nerivio.

Alon received a Master of Science in Electrical Engineering from Santa Clara University, and a Bachelor’s of Science in Electrical Engineering from the Technion- Israel Institute of Technology.

Is Another Covid Spike Coming? 6 Tips to Help You Stay Safe

By Celine Gounder, Kaiser Health News

The emergence last year of the highly transmissible omicron variant of the covid-19 virus caught many people by surprise, and led to a surge in cases that overwhelmed hospitals and drove up fatalities. Now we’re learning that omicron is mutating further to better evade the immune system.

Omicron-specific vaccines were authorized by the FDA in August and are recommended by U.S. health officials for anyone 5 or older. Yet only half of adults in the United States have heard much about these booster shots, according to a recent Kaiser Family Foundation poll, and only a third say they’ve gotten one or plan to get one as soon as possible. In 2020 and 2021, covid cases spiked in the U.S. between November and February.

Although we don’t know for sure that we’ll see another surge this winter, here’s what you should know about covid and the updated boosters to prepare.

1. Do I need a covid booster shot this fall?

If you’ve completed a primary vaccination series and are 50 or older, or if your immune system is compromised, get a covid booster shot as soon as possible. Forty percent of deaths are occurring among people 85 and older and almost 90% among people 65 and over. Although people of all ages are being hospitalized from covid, those hospitalizations are also skewing older.

Unvaccinated people, while in the minority in the U.S., are still at the highest risk of dying from covid. It’s not too late to get vaccinated ahead of this winter season. The United Kingdom, whose covid waves have presaged those in the United States by about a month, is beginning to see another increase in cases.

If you’ve already received three or more covid shots, you’re 12 to 49 years old, and you’re not immunocompromised, your risk of hospitalization and death from the disease is significantly reduced and additional boosters are not likely to add much protection.

However, getting a booster shot provides a “honeymoon” period for a couple of months after vaccination, during which you’re less likely to get infected and thus less likely to transmit the virus to others. If you’ll be seeing older, immunocompromised, or otherwise vulnerable family and friends over the winter holidays, you might want to get a booster two to four weeks in advance to better shield them against covid.

You may have other reasons for wanting to avoid infection, like not wanting to have to stay home from work because you or your child is sick with covid. Even if you aren’t hospitalized from covid, it can be costly to lose wages or arrange for backup child care.

One major caveat to these recommendations: You should wait four to six months after your last covid infection or vaccination before getting another shot. A dose administered too soon will be less effective because antibodies from the previous infection or vaccination will still be circulating in your blood and will prevent your immune cells from seeing and responding to vaccination.

2. Do kids need to be vaccinated even if they’ve had covid?

Although children are at lower risk for severe covid than are adults, the stakes for kids are higher than many diseases already recognized as dangerous. Their risk shouldn’t be measured against the risk that covid poses to other age groups but against the risk they face from other preventable diseases.

In the first two years of the pandemic, covid was the fourth- or fifth-leading cause of death in every five-year age bracket from birth to 19, killing almost 1,500 children and teenagers. Other vaccine-preventable diseases like chickenpox, rubella, and rotavirus killed an average of about 20-50 children and teens a year before vaccines became available. By that measure, vaccinating kids against covid is a slam-dunk.

Children who have had covid also benefit from vaccination. The vaccine reduces their risk of hospitalization and missing days of school, when parents might need to stay home with them.

But it’s precisely because the stakes are higher for kids that many parents are anxious about getting their children vaccinated. As recently as July, just after the FDA authorized covid vaccines for children as young as 6 months, a KFF poll found that over half of parents of children under age 5 said they thought vaccines posed a greater risk to the health of their child than getting the disease. And in the most recent poll, half said they had no plans to get their children vaccinated. Covid vaccination rates range from 61% among children ages 12 to 17 to 2% among kids younger than 2.

Similar to influenza, covid is most deadly for the very youngest and oldest. At especially high risk are infants. They’re unlikely to have immunity from infection, and a small share have been vaccinated. Unless their mothers were vaccinated during pregnancy or got covid during pregnancy — the latter of which poses a high risk of death for the mother and of preterm birth for the baby — infants are probably not getting protective antibodies against covid through breast milk. And because infants have small airways and weaker coughs, they’re more likely to have trouble breathing with any respiratory infection, even one less deadly than covid.

3. Will I need a covid shot every year?

It depends on the targets set by public health officials whether covid becomes a seasonal virus like the flu, and how much the virus continues to mutate and evade humanity’s immune defenses.

If the goal of vaccination is to prevent severe disease, hospitalization, and death, then many people will be well protected after their primary vaccination series and may not need additional shots. Public health officials might strongly recommend boosters for older and immunocompromised people while leaving the choice of whether to get boosted to those with lower risk. If the goal of vaccination is to prevent infection and transmission, then repeat boosters will be needed after completing the primary vaccination series and as often as a couple of times a year.

Influenza is a seasonal virus causing infections and disease generally in the winter, but scientists don’t know whether covid will settle into a similar, predictable pattern. In the first three years of the pandemic, the United States has experienced waves of infection in summer. But if the covid virus were to become a wintertime virus, public health officials might recommend yearly boosters. The Centers for Disease Control and Prevention recommends that people 6 months and older get a flu shot every year with very rare exceptions. However, as with the flu, public health officials might still place a special emphasis on vaccinating high-risk people against covid.

And the more the virus mutates, the more often public health officials may recommend boosting to overcome a new variant’s immune evasion. Unfortunately, this year’s updated omicron booster doesn’t appear to provide significantly better protection than the original boosters. Scientists are working on variant-proof vaccines that could retain their potency in the face of new variants.

4. Are more covid variants on the way?

The omicron variant has burst into an alphabet soup of subvariants. The BA.5 variant that surfaced earlier this year remains the dominant variant in the U.S., but the BA.4.6 omicron subvariant may be poised to become dominant in the United States. It now accounts for 14% of cases and is rising. The BA.4.6 omicron subvariant is better than BA.5 at dodging people’s immune defenses from both prior infection and vaccination.

In other parts of the world, BA.4.6 has been overtaken by BA.2.75 and BF.7 (a descendant of BA.5), which respectively account for fewer than 2% and 5% of covid cases in the U.S. The BA.2.75.2 omicron subvariant drove a wave of infections in South Asia in July and August. Although the U.S. hasn’t yet seen much in the way of another variant descended from BA.5 — BQ.1.1 — it is rising quickly in other countries like the U.K., Belgium, and Denmark. The BA.2.75.2 and BQ.1.1 variants may be the most immune-evasive omicron subvariants to date.

BA.4.6, BA.2.75.2, and BQ.1.1 all evade Evusheld, the monoclonal antibody used to prevent covid in immunocompromised people who don’t respond as well to vaccination. Although another medication, bebtelovimab, remains active in treating covid from BA.4.6 and BA.2.75.2, it’s ineffective against BQ.1.1. Many scientists are worried that Evusheld will become useless by November or December. This is concerning because the pipeline for new antiviral pills and monoclonal antibodies to treat covid is running dry without a guaranteed purchaser to ensure a market. In the past, the federal government guaranteed it would buy vaccines in bulk, but funding for that program has not been extended by Congress.

Other omicron subvariants on the horizon include BJ.1, BA.2.3.20, BN.1, and XBB, all descendants of BA.2.

It’s hard to predict whether an omicron subvariant or yet another variant will come to dominate this winter and whether hospitalizations and deaths will again surge in the U.S. Vaccination rates and experience with prior infections vary around the world and even within the United States, which means that the different versions of omicron are duking it out on different playing fields.

While this might all sound grim, it’s important to remember that covid booster shots can help overcome immune evasion by the predominant omicron subvariants.

5. What about long covid?

Getting vaccinated does reduce the risk of getting long covid, but it’s unclear by how much. Researchers don’t know if the only way to prevent long covid is to prevent infection.

Although vaccines may curb the risk of infection, few vaccines prevent all or almost all infections. Additional measures — such as improving indoor air quality and donning masks — would be needed to reduce the risk of infection. It’s also not yet known whether prompt treatment with currently available monoclonal antibodies and antiviral drugs like Paxlovid reduces the risk of developing long covid.

6. Do I need a flu shot, too?

The CDC recommends that anyone 6 months of age or older get an annual flu shot. The ideal timing is late October or early November, before the winter holidays and before influenza typically starts spreading in the U.S. Like covid shots, flu shots provide only a couple of months of immunity against infection and transmission, but an early flu shot is better than no flu shot. Influenza is already circulating in some parts of the United States.

It’s especially important for people 65 or older, pregnant women, people with chronic medical conditions, and children under 5 to get their yearly flu shots because they’re at highest risk of hospitalization and death. Although younger people might be at lower risk for severe flu, they can act as vectors for transmission of influenza to higher-risk people in the community.

High-dose flu vaccines and “adjuvanted” flu vaccines are recommended for people 65 and older. Adjuvants strengthen the immune response to a vaccine. It is safe to get vaccinated for covid and the flu at the same time, but you might experience more side effects like fevers, headache, or body aches.

Kaiser Health News is a national newsroom that produces in-depth journalism about health issues.

Epstein-Barr Virus Linked to Autoimmune Conditions

By Dr. Forest Tennant, PNN Columnist 

The Epstein-Barr virus (EBV) is a herpes virus that normally resides after infection as an organism in the epithelial tissues of the throat and lymphocytes. Most humans carry the virus and blood tests will often show low levels of EBV antibodies.  

Recent research has determined that in some people, for unknown reasons, the virus will reactivate and/or produce antibodies that carry toxic elements to tissues in the body such as the spinal cord. EBV infected lymphocytes can then cross the blood brain barrier and enter the brain, spinal cord and spinal fluid.  

This situation is now referred to as “EBV autoimmunity” and is reported by multiple medical institutions and researchers to be a major, causative factor in multiple sclerosis, systemic lupus, rheumatoid arthritis, and about 2% of the world’s cancer cases.  

Autoimmunity and Arachnoiditis 

Adhesive Arachnoiditis (AA) has long been known to be an inflammatory disease in which cauda equina nerve roots become adhered by adhesions to the arachnoid lining of the spinal canal. We have also long suspected that autoimmunity was a factor in AA, but until now there has been no compelling reason for this belief. 

In our review of over 800 confirmed cases of AA by magnetic resonance imaging (MRI), along with medical history and symptoms, a single fact emerged. Almost all cases had multiple herniated or protruding intervertebral discs prior to the development of AA. These discs were often in both the cervical and lumbar-sacral regions of the spine.  

Epidural injections, spinal taps or surgery often appeared to accelerate the development of AA. But further research revealed that most persons with MRI-documented AA had other medical conditions known to be common in persons with autoimmune disease. These included: burning mouth or feet, small fiber neuropathies, fibromyalgia, carpal tunnel, Hashimoto’s thyroiditis, Sjogren’s (dry eyes), Raynaud’s, irritable bowel, migraine, temporal mandibular joint pain (TMJ), chronic fatigue, arthritis, Tarlov cysts, mast cell conditions, and POTS. Persons with a genetic connective tissue disease of the Ehlers-Danlos Syndrome type were also significantly affected.  

From this we concluded that AA is usually a late-stage component of a multisystem, autoimmune, inflammatory disease. 

Between our realization that AA is associated with multiple medical conditions and the discovery that EBV causes significant autoimmunity, we began EBV testing in persons with MRI-documented AA. Essentially every case showed very high (sometimes above laboratory testing ability) antibody levels. Some showed evidence of EBV reactivation. Another finding has been that some persons with AA have high levels of cytomegalovirus, other strains of herpes, and/or Lyme. 

EBV is now known to cause a multitude of autoimmune conditions. Our studies indicate that AA is a late-stage development of an autoimmune disorder at least partially caused by EBV. This discovery leaves us little option but to recommend that each person with AA determines if they have multiple autoimmune manifestations including herniated discs and, if so, seek EBV antibody testing and become knowledgeable about control measures. 

Forest Tennant, MD, DrPH, is retired from clinical practice but continues his research on the treatment of intractable pain and arachnoiditis. This column is adapted from an updated bulletin recently issued by the Arachnoiditis Research and Education Project. Readers interested in subscribing to the bulletins should click here.

The Tennant Foundation gives financial support to Pain News Network and sponsors PNN’s Patient Resources section.  

The One Unacceptable Thing a Person in Pain Can Do

By Mia Maysack, PNN Columnist 

Someone once asked me, "If there were one thing to educate the public about on how people in pain live, what would it be?"  

My first thought was, “Where should I start?" 

By definition, chronic pain is pain that persists for at least three months despite medication or treatment. The pain may be caused by any number of medical conditions, diseases, trauma or injury.

Some of us live with chronic pain that most “healthy” people can’t begin to relate to. It’s not like your last stomach flu, hangover, stubbed toe or whack on your not-so-funny bone. You’ll quickly get over those.

Consider the possibility of having pain that never ends. You try countless therapies, medications and changes in lifestyle that may help for a short time, but are far from a cure-all. Many of the suggestions you get -- whether asked for or not -- also haven't proven viable.   

Although I'm fortunate to be alive, migraines and cluster headaches caused by a traumatic brain injury have been my daily companions for over two decades. There’s not much I can do to ease my head pain, and I went through many years experimenting with treatments that only made things worse.      

Some scary statistical facts about pain:

• About 20% of American adults – 50.2 million people – have chronic pain, 19.6 million of which have “high-impact” pain that limits their life and work activities 

• Chronic pain raises the risk of many other health problems, including dementia, high blood pressure, insomnia, anxiety and depression

• The average veterinary student in the United States get five times more education hours focused on treating pain in animals than a medical student does in treating humans

• Even though chronic pain is the number one reason for accessing healthcare and the leading cause of disability, only two percent of the National Institute of Health’s budget goes to pain research  

Let's go back to the thought of a sprained ankle, toothache, seasonal cold or a mild burn. Imagine coming across something that actually helped ease that hardship, but having it taken from away suddenly, and then being refused or abandoned as a patient. That’s what many of us with pain have experienced.

In the face of all this, there does come a point when it's our responsibility to raise awareness about pain and to help find solutions that we all desperately want. This requires some effort on our end.  And it's disheartening to encounter people who won't lift a finger to work towards a solution to our own causes. 

Recently I was discussing important legislation with other individuals living with pain, who all said they were personally impacted by the issue. When I proceeded to explain the next steps needed regarding policy, I saw their eyes glaze over. One even whipped out their phone in disinterest, while everyone else seemingly groaned in discontent.  Even in our own community, we don’t always show up for the sake of ourselves or each other.

It goes without saying that not everyone is interested in or even able to travel to Washington DC for a congressional meeting. The same is true for attending rallies, running support groups, or just sharing their story on a public forum. But someone has to. There are things we can do that will help us inch closer toward change and relief for millions. 

Our individual experiences are valuable and whether you live in a state of physical hurt or not, we must begin to care more about one another on a fundamental level.  Pain is ultimately something that'll impact everyone. Why wait for pain to happen to you? Why accept the fact that it already has?  

One of the biggest myths is that there's only certain acceptable ways to advocate for ourselves or each other. In actuality, there's only one unacceptable thing to do. And that is nothing. 

Mia Maysack lives with chronic migraine, cluster headache and fibromyalgia. She is the founder of Keepin’ Our Heads Up, a Facebook advocacy and support group, and Peace & Love, a wellness and life coaching practice for the chronically ill. Mia is the recipient of the International Pain Foundation’s “Hero of Hope” award for 2022.

FDA Approves Device That Uses Artificial Intelligence to Treat Chronic Pain

By Pat Anson, PNN Editor

The Nevro Corporation says it has won approval from the Food and Drug Administration for an advanced spinal cord stimulator (SCS) that uses artificial intelligence to individualize treatment for each patient.

Nevro says its Senza HFX iQ stimulator “learns from patients” as they use the device and develops customized algorithms for treating chronic back pain, leg pain and pain from diabetic neuropathy.

"HFX iQ is designed to improve the consistency of pain relief and is the only SCS system that truly personalizes care," D. Keith Grossman, Chair and CEO of Nevro, said in news release.

"Pain is variable from patient to patient and over time. Using the big data from our HFX Cloud patient database, our unique HFX Algorithm was developed to identify those programs where patients have been more likely to get relief in the real world.  HFX iQ takes direct input from each patient on their pain and quality of life measures to get smarter over time and recommend program changes.”

Nevro says patients will start with a program most likely to provide pain relief, and then adjusts it over time based on patient input and medical data, such as pain scores, activity levels and changes in use of pain medication. Patients can also adjust their pain relief programs through an app on their smartphones.

Spinal cord stimulators are usually considered the treatment of last resort for people with intractable or severe chronic pain that doesn’t respond to other therapies. The surgically implanted devices emit low levels of electricity that reduce the intensity of pain signals.

Unlike older stimulators, Senza stimulators use electric pulses of 10 kHz, a high frequency that doesn’t create an uncomfortable tingling sensation and delivers more pain relief. Last year the FDA approved Senza stimulators for the treatment of painful diabetic neuropathy, making it the first spinal cord stimulation system approved for that condition. Until then, most SCS devices were only approved for patients with severe back pain.

About 50,000 stimulators are implanted in the U.S. every year, with failure rates for the devices estimated at 25 to 30 percent. Most patients are required to undergo psychological testing and a trial treatment before getting a SCS.

The FDA has come under scrutiny for its regulation of stimulators and other medical devices.  A 2020 report by Public Citizen accused the FDA of “dangerously lax” oversight of stimulators, which were linked to 156,000 injuries and 931 deaths.  The agency responded to the report by sending a letter to healthcare providers reminding them to only implant stimulators after a trial period that demonstrates the device are effective. An FDA review of adverse events involving stimulators found that nearly a third were reports of unsatisfactory pain relief.

Nevro says it will begin a limited release of Senza HFX iQ later this year, with a full market launch in the U.S. in early 2023. Nevro is also seeking approval of HFX iQ in Europe.  

Fibromyalgia: Often Ignored and Poorly Treated

By Victoria Reed, PNN Columnist

Up until about 10 years ago, I had never heard of fibromyalgia. But during a routine medical visit, my doctor recognized symptoms that I described as possibly being signs of fibromyalgia. After an in-depth exam and other testing, a diagnosis of fibromyalgia was made.

Fibromyalgia is a complex disorder which causes widespread musculoskeletal pain, fatigue, sleep and memory issues. Symptoms can begin after a traumatic injury, surgery or infection. It sometimes takes many years to receive a diagnosis, and there is currently no cure.

People like me with autoimmune disorders, such as rheumatoid arthritis or lupus, often suffer from fibromyalgia. It is more common in women than men. The disorder can be accompanied by headaches, irritable bowel syndrome, anxiety and depression. Many fibromyalgia patients also complain of “fibro fog,” which impairs the ability to focus, pay attention and concentrate on mental tasks.

Fibromyalgia seems to run in families. I have multiple family members with the condition, spanning at least three generations. My mother had symptoms of fibromyalgia, but unfortunately never received a diagnosis.

Many experts agree that the key mechanism behind fibromyalgia is central sensitization, which causes the brain and spinal cord to become hypersensitive to pain signals. Pain will be amplified and linger well beyond the initial injury. The hypersensitivity can also affect other senses, leading to discomfort with strong scents or chemicals, bright lights and sounds. Being in loud, crowded spaces can create an overwhelming experience for fibromyalgia sufferers. 

Unfortunately, fibromyalgia is still a somewhat controversial diagnosis, because it is not yet fully understood and its symptoms can overlap with many other conditions. Some people even say that it’s a “garbage can” diagnosis that’s only given when no other one can be made. Many old school doctors believe that fibromyalgia is not a real condition, which is why it can often take years to receive a proper diagnosis.

However, recent research has discovered that there are differences in the brains of fibromyalgia patients. One important discovery is that of neuro-inflammation, which, simply put, is inflammation in certain regions of the brain. This research, documented by PET scans, does confirm inflammatory mechanisms in the brains of fibromyalgia patients and is a major step forward in trying to understand and treat it. It also helps to validate the existence of the condition itself.  

People with fibromyalgia are sometimes not taken seriously by their own doctors and denied appropriate pain management. Many are also denied disability payments as well. I know from experience that the condition can be terribly painful, with deep muscle aches and sore tender spots all over the body.

I have not had success with any of the traditionally prescribed drugs, such as Lyrica (pregabalin), an anticonvulsant that’s also used to treat nerve pain and seizures. While I’ve had some success with a high-quality CBD oil and various CBD creams, it is my prescribed pain medication, in combination with acetaminophen, that gives me the most pain relief.

Unfortunately, some fibromyalgia patients encounter roadblocks in finding a physician who is willing to prescribe pain medication if the only condition they have is fibromyalgia. This definitely needs to change! Fibromyalgia patients are worthy of treatment whether they have other pain conditions or not. The current anti-opioid climate continues to cause patients to suffer needlessly.

If you feel that you may be suffering from fibromyalgia, don’t be afraid to push, push and push for a diagnosis! If your doctor is not willing to help you, look for another doctor and don’t stop until you find one that takes your symptoms seriously. Research all you can on the condition and learn what you can do to help yourself.

Even though it might be difficult to exercise due to the fatigue that fibromyalgia causes, start by adding a little walking to your daily routine, even if it’s just 5 or 10 minutes. Exercise is good for your overall health and well-being, and it can help improve your mood. Being completely sedentary will only make things worse.

Regular massage is sometimes prescribed as well. If you can’t afford a professional massage, you can get a prescription for a therapeutic/medical massage, which will be a little cheaper. You can also purchase one of those self-massage sticks that can be found at sporting goods stores. I have found these things to be helpful to manage my symptoms.

I also suggest joining an online support group. There are many, many people suffering from fibromyalgia, and in these groups you can connect with people around the world, make some new friends, and learn about treatments that work for others.

Living with fibromyalgia is not easy, but it doesn’t have to be a hopeless situation either. If more doctors would take the condition seriously, make a timely diagnosis and provide appropriate treatment, perhaps there would be less suffering for those of us with fibromyalgia.

Victoria Reed lives in northeast Ohio. She suffers from endometriosis, fibromyalgia, degenerative disc disease and rheumatoid arthritis. 

A Voice They Don’t Want to Hear

By Carol Levy, PNN Columnist

“Nothing about us without us.”

I did not know this clarion call was initially a slogan of the disabled community, which wanted a seat at the table when policies were created affecting the disabled. It also pertains to the pain community and our place in the fight against the “war on opioids.”

I am a member of my county's opioid task force. I was invited by a commissioner, an anesthesiologist, who has chronic pain patients. The commission's goal is to find ways to prevent drug abuse, how to treat those who are addicted, and how to fight opioid addiction. 

We had our second meeting a few days ago. In this group, I have become the voice of the pain community, a voice they don't want to hear.

At the first meeting, after hearing about opioids from an emergency room doctor, an EMT, a sheriff, and a recovering addict MD, we broke into smaller groups of 5 or 6 people. I tried to make my voice heard.

“Please, when you speak of addiction starting with painkillers, it needs to be made clear that the people abusing opioids are not the same as those who get legitimate prescriptions for legitimate pain,” I said, adding that studies show we rarely get addicted.

But another woman had a louder voice. Her story was sad, an addicted son who died from an overdose. Every time I tried to speak, she spoke over me. As the meeting progressed, the rest of the group turned to her and very specifically away from me. I was ignored for the rest of the meeting.

At the end, when we were to present our feelings and thoughts about what was needed in the fight against addiction, my voice was absent. 

The second meeting was run the same way. When we broke into our groups, I immediately spoke up. Eyes turned towards me as if to listen, but as soon as I finished my few sentences they turned away. I tried a few times more, louder each time, but was still mostly ignored.  

At one point a woman who runs a recovery house spoke the sentence I abhor: "Many of the addicts start with painkillers...”  

I immediately responded: “There needs to be an asterisk anytime that sentence is spoken. Studies show chronic pain patients rarely get addicted.”  

“I was not referring to those who need them,” she replied. 

“Then you need to add that as a parenthetical, so we don't keep getting swept up as part of the culprits in the war,” I urged.   

She shook her head, said “yeah sure” and went back to "they start with painkillers,” completely ignoring what I had said. 

At the end of the meeting, when we were asked to put on a poster board what we felt needed to be addressed, the leader completely omitted any suggestion that it needs to be made clear the pain community is not part of the problem. 

When it was over, I sought out one of the organizers and told her, “I'm not sure there's a place for me, for the chronic pain community, at this table."

She said she would talk to the county commissioners who had formed the task force and get back to me. No one has. 

I don't know what else to do to get us included. “Nothing without us” in regards to the opioid task force seems to be “nothing about us.” And definitely without us.   

Carol Jay Levy has lived with trigeminal neuralgia, a chronic facial pain disorder, for over 30 years. She is the author of “A Pained Life, A Chronic Pain Journey.”  Carol is the moderator of the Facebook support group “Women in Pain Awareness.” Her blog “The Pained Life” can be found here.