Head-to-Head Migraine Study Ends in Tie

By Pat Anson, PNN Editor

An unusual head-to-head competition between two migraine prevention drugs has ended in a virtual tie. There were no substantial differences in effectiveness between Emgality and Nurtec, according to preliminary results from a clinical trial released by Eli Lilly, the maker of Emgality.

Emgality and Nurtec both inhibit calcitonin gene-related peptides (CGRP), a protein that causes migraine pain, but their delivery systems are different. Emgality is injected once a month, while Nurtec is an oral medication taken every other day made by Biohaven Pharamceuticals, a subsidiary of Pfizer.

Eli Lilly launched the trial in late 2021, enrolling 575 participants in a Phase 4, double-blind, placebo-controlled study evaluating the efficacy and safety of Emgality (galcanezumab) and Nurtec (rimegepant) for 3 months in adults with episodic migraine.

The so-called CHALLENGE-MIG trial was a bold and somewhat risky move by Lilly, as it seeks to gain more market share in the highly competitive $2 billion U.S. migraine market.

In a statement, Lilly said Emgality did not meet the study's primary goal, which was statistical superiority to Nurtec in achieving at least a 50% reduction in monthly migraine headache days. The response rates of patients and safety profiles of both drugs were similar.

Lilly said Emgality was superior to Nurtec in some secondary outcomes, but didn’t disclose what they were. The company would only say that Emgality helped prevent migraines, as it has in previous studies.  

"These results bolster our knowledge of Emgality's ability to work quickly and help patients improve their quality of life with less frequent dosing," Anne White, executive vice president of Eli Lilly, said in a press release. "Reducing the frequency of migraine headache days can help people experience more freedom from the burden of this debilitating neurological disease and get back to participating in the daily activities that matter most to them."

Final result from the CHALLENGE-MIG trial won’t be posted until later this year.

“Nurtec ODT is the first and only medication approved as both an acute treatment for migraine and a preventive treatment for episodic migraine in adults. It offers flexibility to patients in treating their migraines and is the leading prescribed oral CGRP receptor antagonist,” Pfizer said in a statement. “We are confident in the efficacy and tolerability profile of Nurtec ODT as demonstrated in the clinical trials and the well-established patient preference for oral agents over injectables.

First approved by the FDA in 2018, CGRP inhibitors are the biggest innovation in migraine treatment in decades. They are also expensive, whether taken by pill or injection.

The listed cash price for Emgality is $679 for a single injection or $8,148 annually; while 8 tablets of Nurtec cost $1,011 or about $23,000 a year. Costs to patients will vary, depending on insurance coverage, copay assistance programs and rebates.

Unusual Head-to-Head Migraine Study Pits Emgality vs. Nurtec

By Pat Anson, PNN Editor

Competition has grown intense between pharmaceutical companies in the $2 billion U.S. migraine market.

You’ve probably seen their TV commercials. Eli Lilly hired Olympic athletes to pitch Emgality, an injectable migraine preventative, while reality star Khloé Kardashian is appearing in commercials for Nurtec, an oral medication made by Biohaven Pharamceuticals

Lilly is now taking the competition a step further, with an unusual head-to-head clinical study – rare in the pharmaceutical industry – that pits Emgality against Nurtec. The company is enrolling 700 adults with episodic migraine in a randomized, double-blind, placebo-controlled trial. The so-called CHALLENGE-MIG study will directly compare the efficacy and safety of the two drugs.

“Lilly’s CHALLENGE-MIG study will help us understand how different types of preventive medications may help people achieve the goals that matter most to them. It’s exciting that insights generated in this first-of-its-kind head-to-head trial will be able to spark treatment plan discussions between people with migraine and their health care providers,” Shivang Joshi, MD, a trial investigator at Dent Neurologic Institute, said in a Lilly press release.

Emgality and Nurtec both inhibit calcitonin gene-related peptides (CGRP), a protein that causes migraine pain, but their delivery systems are very different. Emgality is injected once a month, while Nurtec is taken in a pill every other day.

Emgality was one of the first CGRP inhibitors to be approved by the FDA in 2018, while Nurtec is a relative newcomer, first approved in 2020. Nurtec’s label was recently expanded to include both migraine prevention and treatment.

The primary goal of the Lilly study is to see which drug gives patients a greater reduction in monthly headache days, with a secondary goal of measuring quality of life improvements.

“We believe patients should expect more and get more from medications that can help prevent migraine. Therefore, we look forward to sharing the findings from our Emgality versus Nurtec ODT head-to-head trial,” said Anne White, senior vice president of Eli Lilly and president of Lilly Neuroscience.

Biohaven’s CEO welcomes the study and sees it as an affirmation of Nurtec’s growing share of the market. Since it was introduced last year, Nurtec has generated about $200 million in revenue for Biohaven, with over 750,000 prescriptions filled. 

"This new head-to-head trial affirms that Nurtec ODT is perceived as the new standard of care.  The dual-therapy action of Nurtec ODT is unique and provides clear advantages to both treat and prevent migraine attacks.  Since the launch of oral acute CGRP agents, the performance of injectable CGRP (inhibitors) is now negligible to flat,” Vlad Coric, MD, CEO of Biohaven Pharmaceuticals, said in a statement to PNN. 

“Regardless of this Emgality study outcome, the Nurtec ODT value proposition will not be matched. And Nurtec ODT will have an impressive and entrenched market penetration by the completion of the proposed head-to-head study.  We continue to hear from patients, who want oral over needle-based therapies.” 

Regardless of whether it’s a pill or injection, both drugs are expensive. A supply of eight Nurtec tablets costs about $941, depending on insurance coverage. The listed price for Emgality is $627 for a single injection or about $7,524 annually.

If you’d like to know more about the study or possibly enroll in it, call the Lilly Answers Center at 1-800-545-5979.

FDA Panels Say New Arthritis Drug Too Risky

By Pat Anson, PNN Editor

Two FDA advisory committees have voted against recommending an experimental non-opioid pain reliever as a new treatment for osteoarthritis, dealing a potential death blow to a drug that’s been under development for 15 years.

On a nearly unanimous 19 to 1 vote, the FDA’s Arthritis Advisory Commitee and Drug Safety and Risk Management Advisory Committee decided that the benefits of tanezumab do not outweigh its possible safety risks, which include the acceleration of osteoarthritis in some patients.  Advisory committee recommendations are not binding on the FDA, but they are likely to carry a good deal of weight when the agency makes a final decision on tanezumab.

Pfizer and Eli Lilly are jointly developing tanezumab, an injectable humanized monoclonal antibody that targets nerve growth factor (NGF), a protein that increases in the body due to injury, inflammation or chronic pain. Tanezumab binds to NGF and inhibits pain signals from muscles, skin and organs from reaching the brain.

FDA reviewers released a report this week saying tanezumab works as a pain reliever, but the effect “is modest, and there is no convincing evidence of a superior efficacy” over non-steroidal anti-inflammatory drugs (NSAIDs), the current standard treatment for osteoarthritis.

More concerning are the potential side effects of tanezumab, the most serious being rapidly progressing osteoarthritis that is so severe some patients need total joint replacements. Investigators say tanezumab also appears to affect healthy joints and causes “abnormal peripheral sensation” similar to carpal tunnel syndrome.

The side effects of tanezumab have been known for over a decade. The FDA slowed the development of tanezumab and other NGF inhibitors in 2010 because of concerns they make osteoarthritis worse in some patients.

Under pressure to approve more non-opioid pain relievers, the FDA allowed clinical studies of tanezumab to resume in 2015 and two years later gave it “fast track” designation to help speed its development.

Pfizer and Eli Lilly have conducted dozens of clinical trials evaluating the safety and efficacy of tanezumab on more than 18,000 patients. The companies at one time considered, but then abandoned plans to develop tanezumab as a treatment for chronic low back pain after 10% of patients given high doses developed joint pain and other side effects.

Critics say its time to finally throw in the towel on tanezumab.

“The drug is unsafe. It accelerates the underlying joint disease. And according to the FDA, even if you stop the drug early on, there’s evidence you can still progress to having these joint problems,” Michael Carome, director of Public Citizen’s Health Research Group, told PNN.  “The decision here is clear cut. The drug should not be approved. And in our view, no further studies on this drug should be done. Because it would be unethical to continue to expose people to this drug where the harm is clear and there’s no real benefit.”

A Pfizer spokesman said the company would continue to seek approval for tanezumab, despite the committees’ recommendation.

“While we are disappointed in today’s outcome, we continue to believe that the clinical data presented for tanezumab supports its benefit-risk profile,” Jim Rusnak, chief development officer for Pfizer, said in a statement. “The patients whom we aim to help with tanezumab are suffering from significant, debilitating osteoarthritis pain and have exhausted available medical therapies and are hopeful for new, non-opioid treatments. We will continue to work with the FDA to determine next steps.”

Osteoarthritis is a progressive joint disorder caused by painful inflammation of soft tissue, which leads to thinning of cartilage and joint damage in the knees, hips, fingers and spine. The World Health Organization estimates that about 10% of men and 18% of women over age 60 have some form of osteoarthritis.

Nearly 80% of People Taking New Migraine Prevention Drugs Report Improvement

By Pat Anson, PNN Editor

Nearly 80% of people taking a new class of medication to prevent migraine say their migraine headaches are “better” since they started taking the drugs, according to a survey conducted by Eli Lilly.

Calcitonin gene-related peptide (CGRP) inhibitors prevent migraines by blocking a key protein released during migraine attacks from binding to nerve receptors in the brain. Since 2018, the FDA has approved three injectable CGRP inhibitors and one oral CGRP medication for migraine prevention. Eli Lilly makes Emgality (galcanezumab), one of the monthly self-injected drugs.

Nearly 600 migraine patients who use CGRP inhibitors participated in the survey, which is part of Lilly’s OVERCOME study, a large web-based survey of migraine sufferers.

While 79.2% said their migraine was better, nearly 10% said it was worse and about 11% said there was no change. The findings were relatively consistent between patients who suffer a handful of migraines each month and those who have them more frequently.

"It is very encouraging that nearly 4 out of 5 people in the survey taking a CGRP monoclonal antibody felt better and reported their migraine had improved," Sait Ashina, MD, a neurologist and scientific advisor to the OVERCOME study, said in a statement.

"It is also notable that the OVERCOME survey reported the clinically meaningful distinction between individuals who reported no change in their migraine with those who said their migraine worsened. This distinction can enhance conversations between the healthcare provider and the patient regarding treatment expectations when considering the use of these novel migraine preventive medications."

Nearly two-thirds (62.6%) of those who used a CGRP inhibitor said they also took another migraine prevention drug, such as topiramate and duloxetine. Use of an additional medication was generally higher among patients who reported frequent migraines.

Lilly presented the survey results this week at the 18th Migraine Trust International Symposium.

The findings are similar to those in a 2019 survey of migraine patients conducted by Health Union. Over half of those using CGRP inhibitors said the benefits of taking the drugs outweighed their side effects. About 9 percent said the medications were not worth the side effects, which include constipation, fatigue and weight gain.

The Health Union survey also found that patients who were not satisfied with a CGRP medication wasted little time switching to a new brand. Most of those who switched said the drugs did not work or stopped working after an initial period of efficacy. 

New Drug Relieves Back Pain, But Safety Issues Remain

By Pat Anson, PNN Editor

An experimental non-opioid pain reliever gives long-term relief for chronic low back pain, but questions remain about joint damage and other side effects from the drug, according to a large new study.

Tanezumab is a humanized monoclonal antibody that targets nerve growth factor (NGF), a protein in the blood that heightens pain sensitivity. Tanezumab binds to NGF and inhibits pain signals from reaching the brain.

In a Phase III study of over 1,800 patients with difficult-to-treat low back pain, participants given an injection of tanezumab once every two months had significantly more pain relief than those given tramadol or a placebo. The study was funded by Pfizer and Eli Lilly, which have spent nearly a decade jointly developing tanezumab as an alternative to opioid medication.

"This demonstration of efficacy is a major breakthrough in the global search to develop non-opioid treatments for chronic pain," said lead author John Markman, MD, director of the Translational Pain Research Program at the University of Rochester Medical Center. "There were also improvements in function linked to the reduction in pain severity."

But this “major breakthrough” is tainted by the fact that about 10% of patients given 10mg of tanezumab had joint pain or other side effects. Seven of them needed total joint replacement surgery. Patients who received 5mg injections of tanezumab had fewer side effects, but less relief from back pain.

NGF inhibitors have previously been linked to a rapidly progressive form of osteoarthritis. But researchers say other methods of treating back pain, such as opioids, non-steroidal anti-inflammatory drugs (NSAIDs) and surgery, have their own safety risks.

"In the future, clinicians may have to weigh the different risks of lumbar fusion surgery, chronic opioid use, or NSAIDs against the unique risks of a rare but rapidly progressive form of joint problem associated with blocking nerve growth factor," said Markman. "I expect that that the tradeoffs between benefit and risk will be different for osteoarthritis than for chronic low back pain."

Tanezumab is currently under review by the Food and Drug Administration as a treatment for moderate-to-severe osteoarthritis (OA), with a decision expected late this year. In a 2019 study of osteoarthritis patients taking a 5mg dose of tanezumab, there was significant improvement in their pain and physical function. But about 6% experienced rapidly progressive osteoarthritis.

Pfizer and Eli Lilly are not currently pursuing tanezumab as a treatment for chronic low back pain (CLBP).  

“Pfizer and Lilly made the decision to prioritize OA based on an assessment of the totality of SC tanezumab data and an initial discussion with the FDA,” a Pfizer spokesman said in an email to PNN. “At this time, regulatory submissions are not planned for tanezumab in patients with moderate-to-severe CLBP. Additional data analyses, and potentially further clinical study, may be required to more fully characterize tanezumab in CLBP patients.”

The new study was published in the journal Pain. Some of its findings had previously been released by Pfizer and Lilly.

‘Golden Era’ for Migraine Therapy Not Providing Relief

By Pat Anson, PNN Editor

In recent years there have been many advances in treating and preventing migraine – what some have called a “treatment revolution” in migraine therapy. New oral and injectable drugs block a key protein released during migraine attacks, and a novel smartphone-controlled device uses neuromodulation to help ease migraine pain.

But for many migraine sufferers, the increasingly crowded field in migraine therapy isn’t translating into pain relief or improved quality of life. Many are reluctant to seek treatment or take medication, and feel stigma about having the disease, according to two new studies.

“We are in a golden era for migraine care with the introduction of new therapeutic options for both the acute and preventive treatment of the disease, but if we don't address the need for better education, less stigma and improved access to care, we are falling short," said Eric Pearlman, MD, a senior medical director at Eli Lilly.

A survey released by the National Headache Foundation in recognition of Migraine and Headache Awareness Month found that less than a third (29%) of people with migraine feel that their disease is under control. The online survey of over 1,000 men and women diagnosed with migraine was funded by Biohaven Pharmaceutical.

Many respondents are concerned about side effects from the medications they take, such as brain fog, fatigue and sleepiness. Almost half of respondents (47%) between the ages of 18-59 say side effects have interfered with their ability to go to school or work. Nearly as many (46%) feel anxious about taking medication.

And despite the plethora of new choices available in migraine therapies, nearly two-thirds (65%) of migraine sufferers are still using an old medication -- triptans -- as a treatment for migraine pain.

"We must strive to understand and educate about the impact of this disease on not only physical well-being; but also, emotional and mental health," said Mary Franklin, executive director of National Headache Foundation. "Every person living with migraine has a different experience and we want all to feel confident in their treatment choices; but also know that there are others who understand the real impact of the disease."

The survey asked migraine sufferers about the emotional and mental burden of the disease, and the impact it has on daily life.

• 77% said they were not able to do the things they wanted to because of migraine attacks 

• 54% feared they were a burden to family, friends and colleagues

• 53% say they modified career plans due to migraine

• 42% were unable to exercise or engage in physical activity

• 37% feel less productive at work or school

• 28% feel less able to take care of their children

• 25% avoid sexual intimacy

The vast majority of respondents (93%) feel misunderstood and that those who don't suffer from migraine don't understand the severity of their disease.

OVERCOME Study

Results from the Biohaven survey were echoed in a large new study of more than 21,000 people living with migraine, which found that less than 30 percent are taking a recommended prescription medication.

"For millions of people living with migraine, the journey to an appropriate treatment program is fraught with gaps," said Susan Hutchinson, MD, scientific advisor to the OVERCOME study. "There are a variety of reasons at play, but it begins with the fact that many may not realize what they are experiencing is a migraine and not just 'another bad headache.'”

The OVERCOME (Observational Survey of the Epidemiology, Treatment and Care of Migraine) study was funded by Eli Lilly. It sought to assess the impact of new treatment options and whether migraine sufferers completed three critical steps in migraine management:

1. Actively sought care with a healthcare professional

2. Received a migraine diagnosis

3. Took a recommended prescription medication

Less than two-thirds (63%) of those who may benefit from acute migraine medication sought treatment from a healthcare provider. Of those, 75% were diagnosed with migraine. Among the diagnosed population, only 59% percent took a recommended drug. Overall, only 28 percent completed all three steps to appropriate care.

The results weren’t much better for OVERCOME respondents who may benefit from a migraine prevention drug. A little over two-thirds (69%) sought care and 79% received a migraine diagnosis. Of those who sought care and received a diagnosis, only 28% wound up taking a preventive medication for migraine. Overall, only 15 percent of this population completed all three steps to appropriate care.

Some migraine sufferers only seek treatment when their pain become unbearable. About 10% of respondents sought care in an emergency room or urgent care clinic setting, where they are less likely to receive an accurate diagnosis or take a recommended medication. 

"Even in light of recent new treatment options in the field of migraine, we still face an uphill battle as too many continue to be underserved," said Robert Shapiro, MD, a scientific advisor to the OVERCOME study. "An important aspect of migraine care that is truly diminished and may contribute to these findings is the stigma felt by many living with the disease. A person's reluctance to seek care or take medication for their migraine can be rooted in the fear of how a friend, employer, or even a loved one may view them for doing so."

Migraine affects about a billion people worldwide and 36 million adults in the United States, according to the American Migraine Foundation. In addition to headache pain, migraine can also cause nausea, vomiting, blurriness or visual disturbances, and sensitivity to light and sound. The World Health Organization classifies migraine as one of the 10 most disabling medical illnesses.

FDA Reviewing New Osteoarthritis Drug

By Pat Anson, PNN Editor

A decade long effort to bring a new non-opioid pain reliever on the market is a step closer to reality – although lingering questions remain over the safety of the drug.

Pfizer and Eli Lilly have announced that the U.S. Food and Drug Administration has accepted for review a Biologics License Application for tanezumab as a treatment of chronic pain due to moderate-to-severe osteoarthritis (OA). The FDA set December 2020 as a goal for making a decision on the application.

Tanezumab is a humanized monoclonal antibody that targets nerve growth factor (NGF), a protein that increases in the body because of injury, inflammation or chronic pain. Tanezumab binds to NGF and inhibits pain signals from muscles, skin and organs from reaching the brain.

"The FDA acceptance of the tanezumab application represents a significant milestone, and the breadth of our regulatory submission reflects the extensive clinical data we have gathered for tanezumab over the course of its development," Ken Verburg, Pfizer’s tanezumab development team leader, said in a statement.

"There is an urgent need for innovation in the treatment of osteoarthritis, as there have been no new classes of medicines available for this debilitating condition in more than a decade. If approved, tanezumab would be a first-in-class treatment for patients suffering from chronic pain due to moderate-to-severe osteoarthritis who have experienced inadequate pain relief with other analgesics."

Pfizer and Eli Lilly are jointly developing tanezumab, which was given “fast track” designation by the FDA in 2017 to help speed its development. The companies submitted data to the FDA from 39 clinical studies evaluating the safety and efficacy of tanezumab on more than 18,000 patients.

A Phase 3 clinical study in 2018 found that osteoarthritis patients who were given two injections of tanezumab had significant improvement in their pain and physical function compared to a placebo.

Not all of the studies have been positive, however. Another Phase 3 study last year found that over 6% of osteoarthritis patients taking a 5 mg dose of tanezumab experienced rapidly progressive OA in their joints. There was significant improvement in their pain and physical function, but the patients’ overall assessment of their condition was no better than those treated with non-steroidal anti-inflammatory drugs (NSAIDs).

Patients in the same study taking a lower 2.5 mg dose of tanezumab did not have any significant improvement in their pain, quality of life or overall condition. And 3.2% experienced rapidly progressive osteoarthritis. The license application accepted by the FDA is for that smaller 2.5 mg dose.

In 2010, Pfizer reported some osteoarthritis patients taking tanezumab experienced worsening of their disease and needed joint replacements. Another safety issue arose in 2012 because the drug caused “adverse changes in the sympathetic nervous system of mature animals.”

There is some concern that NGF antibodies work too well and encourage osteoarthritis patients to become more active, which accelerates joint deterioration. More than 27 million Americans live with osteoarthritis, 11 million of whom have moderate-to-severe OA.

Tanezumab is also being evaluated as a treatment for cancer pain due to bone metastases in a Phase 3 study. At one time, it was studied as a possible treatment for low back pain, but Pfizer and Eli Lilly are now mainly focused on tanezumab as a treatment for osteoarthritis.

FDA Approves New Lilly Migraine Drug

By Pat Anson, PNN Editor

The U.S. Food and Drug Administration has approved Eli Lilly’s Reyvow (lasmiditan) for the treatment of migraine with or without aura. Reyvow is the first migraine treatment that acts by binding to serotonin receptors in the brain and depressing central nervous system activity. 

“Reyvow is a new option for the acute treatment of migraine, a painful condition that affects one in seven Americans,” Nick Kozauer, MD, acting deputy director of the FDA’s Division of Neurology Products, said in a statement. “We know that the migraine community is keenly interested in additional treatment options, and we remain committed to continuing to work with stakeholders to promote the development of new therapies for the acute and preventive treatment of migraine.”  

Migraine affects a billion people worldwide and about 36 million adults in the United States, according to the American Migraine Foundation. In addition to headache pain and nausea, migraine can cause blurriness, light sensitivity and visual disturbances known as aura.

The effectiveness of Reyvow tablets was demonstrated in two double-blind, placebo-controlled studies involving nearly 3,200 patients experiencing a migraine attack. In one study, only about 32% of patients receiving 200mg of Reyvow were pain free after two hours, but that compares to 15% taking a placebo — enough to be considered statistically significant.

"As a physician who specializes in the treatment of migraine and headache disorders, I commonly treat patients who are looking for acute treatment options that offer the chance for pain freedom during migraine attacks. This approval is especially significant because migraine pain is so often severe and incapacitating," said Jan Brandes, MD, a neurology professor at Vanderbilt University and paid consultant to Lilly.

The most common side effects for patients in the Reyvow clinical trials were dizziness, fatigue, a burning or prickling sensation in the skin (paresthesia), and sedation.  An FDA warning label will caution patients not to drive or operate machinery for at least eight hours after taking Reyvow. The drug should also not be taken with alcohol or other serotonin depressants.

Reyvow is not approved for the preventive treatment of migraine. Lilly did not say when Reyvow would be available or how much it would cost.

In recent years, the FDA has approved several new migraine therapies, including injectable drugs to prevent migraine and neuromodulation devices that use electrical pulses to disrupt pain signals.

Migraine can be triggered by various factors including stress, hormonal changes, bright or flashing lights, lack of food or sleep, and diet. Women are three times more likely to suffer from migraine than men.

Experts Advise Against It, But Opioids Often Used to Treat Migraine

By Pat Anson, PNN Editor

Too many Americans are still using opioids to treat their migraine headaches, according to migraine experts who say opioids are generally not recommended for migraines and could even cause more headaches.

In a recent online survey of 20,000 migraine patients, 19 percent said they were currently using opioids to treat migraine -- up from the 16 percent reported in 2009 in the American Migraine Prevalence and Prevention Study.

“These data show that, despite the known potential risks of using opioids for migraine, far too many continue to do so,” said Sait Ashina, MD, a neurologist and Director of the Comprehensive Headache Center at Beth Israel Deaconess Medical Center. “It’s concerning that people may be using these drugs in place of conventional therapies proven to be safer and more effective for migraine.”

Clinical guidelines from the American Headache Society (AHS) encourage the use of triptans and nonsteroidal anti-inflammatory drugs (NSAIDs) such as aspirin and ibuprofen as first-line treatment for migraine.

Because opioids can increase the frequency of migraines or lead to medication overuse headaches, opioids are typically reserved for patients when triptans and NSAIDs don’t work or are contraindicated. 

The survey found that nearly a quarter of the patients who reported four or more migraines per month were using opioids to treat pain, and more than half of them reported taking opioids at least once to treat a migraine headache. 

The survey is part of the ObserVational Survey of the Epidemiology, tReatment and Care Of MigrainE (OVERCOME) study, which is funded by Eli Lilly. The company makes Emgality, an injectable non-opioid drug that reduces the frequency of migraine.

“OVERCOME showed that, overall, opioids are being used in place of medicines that are approved and indicated to treat migraine – particularly among those who experience migraine headaches more frequently,” said Ashina, who is a paid consultant for Eli Lilly.

A separate analysis of over 21,000 migraine sufferers in the OVERCOME study found that patients who used opioids were more likely to experience depression or anxiety when compared to those who never used opioids.

Opioids Overprescribed to Children

Other studies presented last month at the American Headache Society’s annual meeting indicate that opioids are overprescribed to children with migraine.

In an analysis of nearly 14,500 emergency room visits by adolescents and young adults with migraine, opioids were ordered 23% of the time within 12 hours of admission. In more than half of those cases (58%), an opioid was ordered as first-line therapy. Rates of opioid prescribing for migraine did significantly decrease during the study period, from 2010 to 2016.

Another study presented at the AHS annual meeting found that nearly one of every six children who receives medication for migraine or headache during their first medical visit was prescribed an opioid. The rates were even higher among older teens, with one of every four prescribed an opioid during the 2009 to 2014 study period.

“Opioids are generally not recommended for the treatment of migraine due to limited evidence for efficacy, the risk of dependence and the evidence that opioid treatment is a risk factor for headache exacerbation. The very medication that relieves pain short term may lead to the onset of chronic migraine,” said Richard Lipton, MD, a former president of the American Headache Society.

Migraine affects a billion people worldwide and about 36 million adults in the United States, according to the American Migraine Foundation. In addition to headache pain and nausea, migraine can cause vomiting, blurriness or visual disturbances, as well as sensitivity to light and sound. Women are three times more likely to suffer from migraine than men.

New Safety Concerns for Osteoarthritis Drug

By Pat Anson, PNN Editor

Disappointing results from a Phase 3 clinical study are raising new safety concerns about an experimental class of pain-relieving drugs once considered a promising alternative to opioids.

Pfizer and Eli Lilly say 6.3% of osteoarthritis patients taking a 5 mg dose of tanezumab experienced rapidly progressive osteoarthritis in their joints. There was significant improvement in their pain and physical function, but the patients’ overall assessment of their condition was no better than those treated with non-steroidal anti-inflammatory drugs (NSAIDs).

Patients taking a lower 2.5 mg dose of tanezumab did not have any significant improvement in their pain, quality of life or overall condition. And 3.2% experienced rapidly progressive osteoarthritis.

“We are analyzing these findings in the context of the recent Phase 3 results as we assess potential next steps for tanezumab,” Ken Verburg, Pfizer Global Product Development, said in a statement. “We plan to review the totality of data from our clinical development program for tanezumab with regulatory authorities.”

Tanezumab is a humanized monoclonal antibody that targets nerve growth factor (NGF), a protein that increases as a result of injury, inflammation or chronic pain. Tanezumab binds to NGF and inhibits pain signals from reaching the brain.

Tanezumab was considered so promising a therapy that it was given fast track designation from the FDA in 2017, a process that speeds up the development of new therapies to treat serious conditions.

Ironically, it was the FDA that slowed the development of NGF inhibitors in 2010 because of concerns that tanezumab made osteoarthritis worse in some patients. Most clinical studies of tanezumab did not resume until 2015.

The reappearance of the same safety issue and the marginal pain relief provided by tanezumab could be the last straw for the drug, according to one analyst.

“It is hard for us to imagine how these results could have been much worse. Pfizer indicated that they ‘plan to review the totality of data’ with regulatory authorities, which suggests to us that the co-sponsors will try to find a way to resurrect the program for some subset or sub-population of patients, but recognizes that this result puts the drug’s entire future in doubt,” SVB Leerink research analyst Geoffrey Porges said in a note to clients.

A clinical study of fasinumab, another NGF inhibitor being developed by Teva and  Regeneron Pharmaceuticals, was stopped by the FDA in 2016 after a patient showed signs of severe joint disease. Regeneron and Teva are continuing to study fasinumab in patients with chronic low back pain.

Pfizer and Eli Lilly are also studying tanezumab as a treatment for low back pain, and reported promising results from a Phase 3 trial in February. Rapidly progressive osteoarthritis was also reported in a small number of patients involved in that study.

New Non-Opioid Drug Effective in Treating Low Back Pain

By Pat Anson, PNN Editor

Pfizer and Eli Lilly have announced positive results from a large Phase 3 study evaluating an experimental non-opioid pain reliever as a treatment for chronic low back pain.

Patients receiving 10 mg injections of tanezumab showed statistically significant improvement in back pain at 16 weeks compared to placebo. A lower dose of tanezumab 5 mg was not as effective. Over 1,800 people with chronic low back pain in North America, Europe and Asia participated in the study.

Tanezumab is a humanized monoclonal antibody that targets nerve growth factor (NGF), a protein that increases in the body because of injury, inflammation or chronic pain. Tanezumab binds to NGF and inhibits pain signals from muscles, skin and organs from reaching the brain.

"This study demonstrates the potential of tanezumab to treat individuals suffering from moderate-to-severe chronic low back pain who have been unable to achieve relief with currently available medicines," said Ken Verburg, Pfizer’s tanezumab development team leader.

“This is one of the longest studies conducted to date in chronic low back pain. We look forward to further analyzing these results, and believe the data from this study will support our planned future global regulatory submissions in chronic low back pain."

Pizer and Eli Lilly have also reported positive findings in evaluating tanezumab for the treatment of osteoarthritis. The Food and Drug Administration granted “fast track” designation to tanezumab in 2017 to help speed its development.

Tanezumab has a history of safety concerns. Clinical studies were halted in 2010 after Pfizer reported some osteoarthritis patients receiving the drug had worse symptoms and needed joint replacement surgery. Another safety issue arose in 2012 when tanezumab caused adverse changes in the nervous system of animals.  Most clinical studies of tanezumab did not resume until 2015.

In the current study, rapidly progressive osteoarthritis (RPOA) was observed in 1.4 percent of patients receiving tanezumab and 0.1 percent of patients in the other treatment groups. Joint fractures and total joint replacements were experienced in 0.4 percent and 0.7 percent of tanezumab-treated patients, respectively, while none were observed in the other treatment groups.

In addition to back pain, the ongoing Phase 3 program for tanezumab includes studies in osteoarthritis pain and cancer pain due to bone metastases.

FDA Approves Third Injectable Migraine Drug

By Pat Anson, PNN Editor

Migraine sufferers will soon have another treatment option. Eli Lilly has announced that the U.S. Food and Drug Administration has approved Emgality (galcanezumab), a monthly self-injected drug for the prevention of migraine in adults.

Emgality is the third injectable migraine drug the FDA has approved this year. In May, the agency gave approval to Amgen’s Aimovig (erenumab), the first migraine drug that uses fully human monoclonal antibodies to target receptors in the brain where migraines are thought to originate.  Last week, the FDA approved Teva’s Ajovy, a migraine prevention drug that can be injected monthly or quarterly.

Lilly said the efficacy and safety of Emgality was demonstrated in three Phase 3 clinical trials in patients with episodic or chronic migraine.

Emgality reduced the number of monthly migraine headache days by an average of 4.7 days in patients with episodic migraine and by 4.8 days in patients with chronic migraine.  

Migraine affects a billion people worldwide and about 36 million adults in the United States, according to the American Migraine Foundation. In addition to headache pain and nausea, migraine can cause vomiting, blurriness or visual disturbances, as well as sensitivity to light and sound. Women are three times more likely to suffer from migraine than men.

“Despite the devastating impact of migraine, only about 10 percent of people living with the disease are currently taking a preventive treatment,” Christi Shaw, president of Lilly Bio-Medicines, said in a statement. “With this approval, we are thrilled to offer a preventive treatment option to adults living with this disease.”

Lilly said Emgality would be available “shortly” at a listed price of $575 for a single injection or $6,900 annually. That introductory price is identical to that of Aimovig and Ajovy, although various discounts or rebates could make the cost lower. Lilly said it would offer Emgality for up to 12 months free to patients with commercial insurance under its patient assistance program.   

“We know the impact high deductible and rising out-of-pocket costs have on families, and Lilly takes seriously our role in ensuring affordable access to Emgality for as many patients as possible,” said Shaw.

Earlier this month, the European Medicines Agency’s (EMA) Committee for Medicinal Products for Human Use issued a positive opinion of Emgality for the prevention of migraine in adults who have at least four migraine days per month. That positive opinion was referred for final action to the European Commission, which grants drug approval in the European Union.

Positive Findings for New Osteoarthritis Drug

By Pat Anson, Editor

Pfizer and Eli Lilly have announced positive findings in treating osteoarthritis pain with an experimental non-opioid drug that has a history of safety concerns.  

Tanezumab is a humanized monoclonal antibody that targets nerve growth factor (NGF), a protein that increases in the body because of injury, inflammation or chronic pain. Tanezumab binds to NGF and inhibits pain signals from muscles, skin and organs from reaching the brain.

In the 16-week clinical study, osteoarthritis patients who were given two injections of tanezumab had significant improvement in their pain, physical function and assessment of their symptoms compared to a placebo. Osteoarthritis is a joint disorder that leads to thinning of cartilage and progressive joint damage.

“There is a substantial need for innovative new treatment options for osteoarthritis, as many patients are unable to find relief with currently available medicines and continue to suffer,” Ken Verburg of Pfizer Global Product Development said in a statement.

“We are encouraged by these results, which speak to the potential of tanezumab as a non-opioid treatment option for pain reduction and improvement in physical function.”

Preliminary safety data showed that tanezumab was generally well tolerated, with about 1% of patients discontinuing treatment due to adverse events. Rapidly progressive osteoarthritis was observed in about 1.5% tanezumab-treated patients, but none in the placebo arm.

The U.S. Food and Drug Administration granted “fast track” designation to tanezumab last year to help speed its development as a new treatment for osteoarthritis and chronic low back pain.

Ironically, it was the FDA that slowed the development of NGF inhibitors in 2010 after Pfizer reported some osteoarthritis patients receiving tanezumab experienced worsening of their disease and needed joint replacements. Another safety issue arose in 2012 because the drug caused “adverse changes in the sympathetic nervous system of mature animals.”  Most clinical studies of tanezumab did not resume until 2015.

“We look forward to continuing to advance tanezumab in our ongoing global Phase 3 development program, which includes six studies in approximately 7,000 patients with osteoarthritis, chronic low back pain and cancer pain,” said Christi Shaw, senior vice president of Eli Lilly. In studies to date, tanezumab has not demonstrated a risk of addiction, misuse or dependence.

Regeneron recently halted high-dose trials of fasinumab, another NGF inhibitor, because the risk of harm outweighed the benefits of the drug. There is some concern that NGF antibodies work too well and encourage osteoarthritis patients to become more active, which accelerates joint deterioration.

FDA Gives Fast Track Designation to New Pain Med

By Pat Anson, Editor

The U.S. Food and Drug Administration has granted “fast track” designation to a new, non-opioid pain medication for patients with osteoarthritis and chronic low back pain -- even though the drug has a history of safety issues.

Tanezumab is an investigational humanized monoclonal antibody that targets nerve growth factor (NGF), a protein that increases in the body as a result of injury, inflammation or chronic pain. Tanezumab binds to NGF and inhibits pain signals from reaching the spinal cord and brain.

Tanezumab is the first NGF inhibitor to receive fast track designation from the FDA, a process that speeds up the development and review of new therapies to treat serious conditions with unmet medical needs.

“If approved, tanezumab would be the first in a new class of non-opioid chronic pain medications,” said Ken Verburg, Chief Development Officer, Neuroscience & Pain, Pfizer Global Product Development. “We believe it would represent an important medical advance in the treatment of debilitating osteoarthritis and chronic low back pain for patients who do not experience adequate pain relief or cannot tolerate currently available pain medications.”

Pfizer is jointly developing tanezumab with Eli Lilly. The two drug makers are currently recruiting patients for Phase 3 studies of tanezumab in 7,000 patients with osteoarthritis, low back pain or cancer pain. Participants will be injected with tanezumab once every eight weeks for treatment periods ranging from 16 to 56 weeks, followed by a 24-week safety follow-up period.  Results from the clinical trials are not expected until next year.

"It is estimated that there are more than 27 million Americans currently living with osteoarthritis and 23 million living with chronic low back pain, many of whom fail to achieve adequate pain relief despite treatment with various types of pain medications,” said Christi Shaw, Senior Vice President and President, Lilly Bio-Medicines.

“We are committed to offering innovative solutions to people suffering from chronic pain conditions, and look forward to working closely with the FDA to facilitate the development of tanezumab.”

Ironically, it was the FDA that slowed the development of NGF inhibitors in 2010 because of safety concerns. The agency ordered a partial halt to clinical studies after Pfizer said a small number of osteoarthritis patients receiving tanezumab experienced worsening of their disease and needed joint replacements. Another safety issue arose in 2012 because the drug caused “adverse changes in the sympathetic nervous system of mature animals.” 

Most clinical studies of tanezumab did not resume until 2015. Pfizer says the current Phase 3 studies include risk mitigation measures for joint safety and sympathetic nervous system safety.

A clinical study of fasinumab, another nerve growth factor drug being developed by Teva and  Regeneron Pharmaceuticals, was stopped by the FDA last year after a patient showed signs of severe joint disease. Regeneron and Teva said they would redesign the study of patients with chronic low back pain to exclude participants with advanced osteoarthritis.

Promising Results for New Rheumatoid Arthritis Drug

By Pat Anson, Editor

A new drug being developed by Eli Lilly significantly reduces pain, inflammation and other symptoms of rheumatoid arthritis, according to the findings of an international research team published in the New England Journal of Medicine. Nearly ten percent of the patients taking the drug Baricitinib went into full remission.

Rheumatoid arthritis (RA) is a chronic autoimmune disease in which the body’s own defenses attack joint tissues, causing pain, inflammation and bone erosion. Most RA treatments focus on suppressing the immune system to reduce inflammation and slow progression of the disease.

Baricitinib inhibits two enzymes, called Janus kinase 1 and 2, which are activated in the inflammatory response to RA.

“This is the first drug to demonstrate meaningful clinical benefit in patients who’ve failed virtually every other commercial drug for rheumatoid arthritis,” said lead author Mark Genovese, MD, a professor of immunology and rheumatology at Stanford University School of Medicine.

Researchers at Stanford and Medical University of Vienna in Austria enrolled 527 RA patients from 24 countries in the Phase 3 clinical study. The patients had been living with the autoimmune disease for 14 years, on average, had moderate to severe symptoms, and had not responded well to previous treatments. Patients were divided into three groups, one with a daily dosage of 2 mg of Baricitinib, one with 4 mg, and a control group given placebos.

After 24 weeks, the patients who received Baricitinib had significant improvements in their symptoms, suffering less pain, joint swelling and other signs of disease activity. The group with the 4 mg dose showed even better results than those with the 2 mg dose, compared to the placebo group.

"With Baricitinib, we will have a drug that works even if the currently employed medications are not sufficiently effective,” said co-author Joseph Smolen, manager of the University Clinic for Internal Medicine III at Medical University of Vienna. “Almost 10 % of the patients went into full remission (a cure-like state) within six months, and almost half of the patients demonstrated significant improvement of in disease activity and physical functioning. All this may constitute a new basis for the treatment of rheumatoid arthritis that could become available in the near future."

Another advantage of Baricitinib is that it can be taken orally once a day and does not have to be administered intravenously or through injections, unlike other RA medications. Some patients in the study had side effects, such as mild upper respiratory infections and shingles.

About 1.5 million Americans and 1% of adults worldwide have rheumatoid arthritis. About three of every four people with the disease are women.

New injectable biologic drugs often work in controlling RA initially, but lose their effectiveness over time or have unacceptable side effects. They are also notoriously expensive, with some of the newer drugs costing $20,000 annually.

According to a recent study, RA patients enrolled in Medicare Part D plans paid an average out-of-pocket cost of $835 a month for a biologic in 2013. Costs varied widely depending on the drug – from $269 a month for the biologic infliximab to $2,993 a month for anakinra.

The Baricitinib trial was sponsored by Eli Lilly, which has filed for approval of the drug with the U.S. Food and Drug Administration. Three other Lilly-sponsored studies have shown  Baricitinib was effective in newly diagnosed patients, and in head-to-head competition with the RA medications adalimumab and methotrexate. Baricitinib is also being studied in trials for atopic dermatitis and systemic lupus erythematosus.