Did OxyContin's Reformulation Really Lead to More Heroin Use?

By Roger Chriss, PNN Columnist

A common belief in the opioid overdose crisis is that the reformulation of OxyContin in 2010 led to a large-scale shift to heroin. Seven years after making the pills hard-to-crush to discourage snorting or injecting, The Washington Post reported the abuse-deterrent reformulation had made OxyContin “the chief driver of the explosion in heroin overdose deaths.”

The primary source of this claim is a National Bureau of Economic Research (NBER) paper that states “a substantial share of the dramatic increase in heroin deaths since 2010 can be attributed to the reformulation of OxyContin.”

The NBER paper used data from the National Survey on Drug Use and Health (NSDUH) and the Drug Enforcement Administration to assess usage levels of OxyContin and other prescription opioids, and data from the National Vital Statistics System to measure overdose deaths.

The researchers found that “states with the highest initial rates of OxyContin misuse experienced the largest increases in heroin deaths.”

But this conclusion is now being challenged. A recent study in the journal Addiction Behavior looked at NSDUH data from 2005 through 2014 to evaluate the impact of the reformulation on individuals with a history of OxyContin misuse.

The results showed “no statistically significant effects of the reformulation” on prescription opioid misuse or heroin use. In fact, researchers found a “net reduction in the odds” of heroin initiation after the reformulation.

“Thus, the reformulation of OxyContin appears to have reduced prescription pain reliever misuse without contributing to relatively greater new heroin use among those who misused OxyContin prior to the reformulation,” the authors concluded.

Psych Congress also reported there was little evidence of a shift to heroin from prescription opioids, saying drug trafficking data “don't fully support the often-heard conclusion that efforts to limit access to prescription opioids led to a mass migration to heroin."

Murky Data

The reason for the different conclusions is not clear. But much of what is assumed about abuse-deterrent reformulation is not holding up. Last summer, STAT News reported that rates of OxyContin abuse were similar or higher three years after the drug was reformulated. According to one survey, less than 5 percent of long-term abusers gave up OxyContin, suggesting the reformulation didn’t accomplish much.

Data on heroin use also includes considerable uncertainty, and applying state-level data-sets to understand individual usage patterns is tricky. Plus, data on overdose fatalities can be hard to parse since many victims die with multiple drugs in their systems, and toxicology reporting varies by state.

Since OxyContin’s reformulation, six other opioid medications have been approved by the FDA with abuse deterrent properties, costing drug makers hundreds of millions of dollars in research and development expenses.

Figuring out what happens after a prescription opioid is reformulated is important. Current public health policy and prescribing practices are assuming risks and benefits based on limited evidence. If something different or perhaps more complex is happening, then we need to look harder and make changes.

The implications here are also important, including determining liability and damages in the opioid lawsuits, developing effective public health measures for addiction treatment and the overdose crisis, and creating better risk assessment for pain management.

The impacts of the OxyContin reformation may be smaller and more subtle than previously thought. If the new findings hold, then we may have to rethink the benefits of abuse-deterrent formulations and the trajectory of heroin use. In other words, we need to keep looking closely at the overdose crisis and not assume we have it fully figured out.

Roger Chriss lives with Ehlers Danlos syndrome and is a member of the Ehlers-Danlos Society. Roger is a technical consultant in Washington state, where he specializes in mathematics and research. 

Cigna Won’t Pay for OxyContin in 2018

By John Burke, Guest Columnist

A major health insurance company -- Cigna -- announced this week that they it is removing OxyContin from its list of approved medications and replacing it with another extended release oxycodone product.

“Our focus is on helping customers get the most value from their medications — this means obtaining effective pain relief while also guarding against opioid misuse," said Jon Maesner, Cigna's chief pharmacy officer.

OxyContin is the only opioid-based prescription painkiller that Cigna is removing in 2018 as "a preferred option" from its formulary, a list of medications that its health plans will pay for.

On the surface, this declaration might appear to be a great stride toward reducing prescription drug abuse. Cigna is replacing OxyContin with Collegium’s product, Xtampza ER, which is also an abuse deterrent extended release oxycodone product. 

My problem with this announcement is that OxyContin, along with the other abuse deterrent formulations (ADFs), have very little abuse issues. OxyContin certainly did up until its reformulation in August 2010, but that was over 7 years ago! Since then, there is much documentation from a variety of sources that show the diversion of OxyContin has fallen extensively.

Xtampa ER and the other abuse deterrent formulations also have little to no abuse issues since they have been on the market. 

If Cigna wants to change drugs, that’s likely a financial decision and one they should make, but please don’t tout your move as striking a blow for reducing drug diversion.

It will do nothing to reduce drug diversion, since the clear majority of diversion falls into the immediate release opioids, primarily oxycodone and hydrocodone. 

What is even more concerning to me is the vilifying of any drug that hundreds of thousands of legitimate pain patients take to live a semblance of a normal life, especially when that drug does not have a recent history of abuse and diversion. It also tends to make suspect any and all abuse deterrent products, which is deceptive at best. 

One thing the abuse deterrent formulations have done is to help narrow their focus to legitimate pain patients. Those seeking to get “high” moved to immediate release opioids or black market heroin/fentanyl combinations, not the ADF products. That’s why the FDA is now considering requiring companies that produce generic opioids to develop ADF properties for their drugs. 

No matter what Cigna declares, the bottom line is that ADF’s have been successful. They are not an end all to diversion and abuse, but they do help pain patients get easier access to pain medication. I am hoping that is everybody’s ultimate goal. 

John Burke recently retired after nearly 50 years in drug and law enforcement in southwestern Ohio.

John is a former president of the National Association of Drug Diversion Investigators and current president of the International Health Facility Diversion Association.

The information in this column should not be considered as professional medical advice, diagnosis or treatment. It is for informational purposes only and represent the author’s opinions alone. It does not inherently express or reflect the views, opinions and/or positions of Pain News Network.

FDA to Review All Abuse Deterrent Opioids

By Pat Anson, Editor

A week after asking that Opana ER be taken off the market, the head of the Food and Drug Administration has ordered a review of all opioid painkillers with abuse deterrent formulas to see if they actually help prevent opioid abuse and addiction.

The move is likely to add to speculation that the FDA may seek to prevent the sale of other opioid painkillers.

“We are announcing a public meeting that seeks a discussion on a central question related to opioid medications with abuse-deterrent properties: do we have the right information to determine whether these products are having their intended impact on limiting abuse and helping to curb the epidemic?” FDA commissioner Scott Gottlieb, MD, said in a statement.

Gottlieb said the FDA would meet with “external thought leaders” on July 10th and 11th to assess abuse deterrent formulas, which usually make medications harder for addicts to crush or liquefy for snorting and injecting. He did not identify who the thought leaders were.

“Opioid formulations with properties designed to deter abuse are not abuse-proof or addiction-proof. These drugs can still be abused, particularly orally, and their use can still lead to new addiction,” Gottlieb said. “Nonetheless, these new formulations may hold promise as one part of a broad effort to reduce the rates of misuse and abuse. One thing is clear: we need better scientific information to understand how to optimize our assessment of abuse deterrent formulations.”

In a surprise move last week, the FDA asked Endo Pharmaceuticals to remove Opana ER from the market, citing concerns that the oxymorphone tablets are being liquefied and injected. It’s the first time the agency has taken steps to stop an opioid painkiller from being sold.

“I am pleased, but not because I think that this one move by itself will have much impact,” Andrew Kolodny, MD, Executive Director of Physicians for Responsible Opioid Prescribing (PROP) told Mother Jones. “I’m hopeful that this signals a change at FDA—and that Opana might be just the first opioid that they’ll consider taking off the market. It’s too soon to tell.”

Opana was reformulated by Endo in 2012 to make it harder to abuse, but addicts quickly discovered they could still inject it. The FDA said Opana was linked to serious outbreaks of HIV, Hepatitis C and a blood clotting disorder spread by infected needles.

Endo has yet to respond to the FDA request. If the company refuses to stop selling Opana, the agency said it would take steps to require its removal from the market by withdrawing approval.

“The request to voluntarily remove the product is one thing, but it comes with a lot of other questions that are unanswered,” Endo CEO Paul Campanelli reportedly said at an industry conference covered by Bloomberg. “We are attempting to communicate with the FDA to find out what they would like us to do.”

Patient advocates say it would be unfair to remove an effective pain medication from the market just because it is being abused by addicts.

“The FDA is following a political agenda, rather than its mandate to protect the public health,” said Janice Reynolds, a retired oncology nurse who suffers from persistent pain. “Depriving those who benefit from the use of Opana ER to stop people from using it illegally is ethically and morally wrong.”

Sales of Opana reached nearly $160 million last year. The painkiller is prescribed about 50,000 times a month.

"This is something that could potentially apply to other drugs in the future, as it may signal a movement by the FDA to start taking products off the market that don't have strong abuse-deterrent properties," industry analyst Scott Lassman told CorporateCounsel.com.

The FDA put drug makers on notice four years ago that they should speed up the development of abuse deterrent formulas (ADF).  Acting on the FDA's guidance, pharmaceutical companies spent hundreds of millions of dollars developing several new opioid painkillers that are harder to chew, crush, snort or inject.

Were they worth the investment? Not according to a recent study funded by insurers, pharmacy benefit managers and some drug makers.

The Institute for Clinical and Economic Review (ICER), a non-profit that recommends which medications should be covered by insurance and at what price, released a report last month that gave ADF opioids a lukewarm grade when it comes to preventing abuse.

“Without stronger real-world evidence that ADFs reduce the risk of abuse and addiction among newly prescribed patients, our judgment is that the evidence can only demonstrate a ‘comparable or better’ net health benefit (C+),” the ICER report states.

The insurance industry has been reluctant to pay for ADF opioids, not because of any lack of effectiveness in preventing abuse, but because of their cost. A branded ADF opioid like OxyContin can cost nearly twice as much as a generic opioid without an abuse deterrent formula.  According to one study, OxyContin was covered by only a third of Medicare Part D plans in 2015. Many insurers also require prior authorization before an OxyContin prescription is filled.  

FDA Wants Opana ER Sales Stopped

By Pat Anson, Editor

The U.S. Food and Drug Administration today asked Endo Pharmaceuticals to remove Opana ER from the market, citing concerns about safety risks when the tablets are liquefied and injected. It’s the first time the agency has taken steps to stop an opioid painkiller from being sold -- and oddly it has more to do with preventing HIV and Hepatitis C than it does in preventing opioid abuse.

“We are facing an opioid epidemic – a public health crisis, and we must take all necessary steps to reduce the scope of opioid misuse and abuse,” said FDA Commissioner Scott Gottlieb, MD. “We will continue to take regulatory steps when we see situations where an opioid product’s risks outweigh its benefits, not only for its intended patient population but also in regard to its potential for misuse and abuse.”

Opana ER is the brand name for Endo’s extended release opioid painkiller oxymorphone. It was first approved by the FDA in 2006 for the management of moderate to severe pain.  In 2012, after numerous reports that it was being abused and sold on the black market, Opana was reformulated by Endo to make it harder for addicts to crush or liquefy.

That same year, over a dozen cases of a serious blood clotting disorder and Hepatitis C in intravenous drug users were linked to the reformulated Opana in Tennessee. But it took another five years for the FDA to act.

In March, an FDA advisory panel voted 18-8 that the benefits of reformulated Opana no longer outweighed its risks. The agency found“a significant shift in the route of abuse” from snorting to injection. Injecting Opana was associated with outbreaks of HIV, Hepatitis C and a blood clotting disorder called thrombotic thrombocytopenic purpura. All can be spread intravenously by infected needles.

“The abuse and manipulation of reformulated Opana ER by injection has resulted in a serious disease outbreak. When we determined that the product had dangerous unintended consequences, we made a decision to request its withdrawal from the market,” said Janet Woodcock, MD, director of the FDA’s Center for Drug Evaluation and Research. “This action will protect the public from further potential for misuse and abuse of this product.”

The FDA has requested that Endo voluntarily remove Opana from the market. Should the company refuse to do so, the agency intends to take steps to formally require its removal by withdrawing approval.

"Endo is reviewing the request and is evaluating the full range of potential options as we determine the appropriate path forward," the company said in a statement. "Despite the FDA's request to withdraw Opana ER from the market, this request does not indicate uncertainty with the product's safety or efficacy when taken as prescribed. Endo remains confident in the body of evidence established through clinical research demonstrating that Opana ER has a favorable risk-benefit profile when used as intended in appropriate patients."

According to Bloomberg, sales of Opana  reached nearly $160 million last year, about 4 percent of the company’s total revenue.

Are Abuse Deterrent Opioids Working?

By Pat Anson, Editor

In 2013, the U.S. Food and Drug Administration put drug makers on notice that they should speed up the development of abuse deterrent formulas for opioid pain medication.

“(The) abuse and misuse of these products have resulted in too many injuries and deaths across the United States,” Douglas Throckmorton, MD, a top FDA official said at the time. “An important step towards the goal of creating safer opioids is the development of products that are specifically formulated to deter abuse.”

Acting on the FDA's guidance, pharmaceutical companies have spent hundreds of millions of dollars developing abuse deterrent formulas (ADFs) that make opioid medications harder for addicts to chew, crush, snort or inject. Several new opioids with ADF formulas have been approved by the FDA and more are still in the pipeline.

Was it worth the investment? Not according to a new study funded by insurers, pharmacy benefit managers and some drug makers.

The Institute for Clinical and Economic Review (ICER), a non-profit that recommends which medications should be covered by insurance and at what price, released a Draft Evidence Report  earlier this month that questions the effectiveness of ADF opioids, giving them a middling grade of C+ when it comes to preventing abuse.

“Without stronger real-world evidence that ADFs reduce the risk of abuse and addiction among newly prescribed patients, our judgment is that the evidence can only demonstrate a ‘comparable or better’ net health benefit (C+),” the ICER report states.

ICER also gave a lukewarm review to OxyContin, the painkiller that was reformulated by Purdue Pharma in 2010 after widespread reports that it was being abused and causing addiction.   

“Evidence on the impact of reformulated OxyContin on opioid abuse is mixed. The majority of time series studies found that after the abuse-deterrent formulation of OxyContin was introduced, there was a decline in the rate of OxyContin abuse,” the ICER report states. “However, the rate of abuse of other prescription opioids (ER oxymorphone, ER morphine, IR oxycodone) and heroin abuse may have increased during the same period.

“Furthermore, findings from direct interviews with recreational users showed that reformulated OxyContin may have limited impact on changing overall abuse patterns.”

Purdue objects to ICER’s analysis – citing another study that found reformulated OxyContin prevented 7,200 cases of abuse and $200 million in additional medical costs.

“ICER missed the opportunity to fairly evaluate the impact of these innovative technologies, recognized by the FDA, DEA, NIDA (National Institute of Drug Abuse) and other policy makers as an important component of addressing the opioid crisis,” the company said in a statement.

Purdue and other ADF makers are troubled by the ICER report because it gives cover to insurers who are already reluctant to pay for branded ADF opioids like OxyContin when generic opioids without abuse deterrent formulas are much cheaper.  According to one study, OxyContin was covered by only 33% of Medicare Part D plans in 2015. Many insurers create more hoops for patients and doctors to jump through by requiring that prior authorization be given before an OxyContin prescription is filled.  

ICER estimates the average annual cost of an ADF opioid (90mg MED) prescription at $4,234, nearly twice that of a non-ADF opioid ($2,124).  If all opioid medication was made with ADFs, ICER says the additional cost to patients and insurers would be $645 million over five years.

Are ADFs worth it, given their mixed record in preventing abuse and addiction?

According to startling cost-benefit analysis devised by ICER, preventing a single case of opioid abuse with ADFs costs $165,868. The same analysis found that preventing just one overdose death with ADFs would cost $977,119,566 – almost a billion dollars.

Survey Shows Addicts Abusing ADF Opioids

A new report from RADARS, a national drug abuse tracking system, would seem to support ICER’s analysis that ADFs are not making a significant impact on abuse. A survey of 1,775 addicts about to enter treatment in early 2017 found that ADF opioids were still being chewed, snorted, injected and smoked, but at rates "slightly lower" than those of non-ADF opioids.

SOURCE: RESEARCHED ABUSE, DIVERSION AND ADDICTION-RELATED SURVEILLANCE SYSTEM (RADARS) 

“The majority of individuals who abused an ER (extended release) opioid abused an ADF opioid (58.6%), but the proportion of respondents who reported abuse via tampering was slightly lower for ADF opioids than ER opioids as a whole. Among individuals entering treatment, abuse of prescription opioids by chewing, snorting, or injecting is prevalent with oral solid dosage formulations of both IR (immediate release) and ER opioids,” the RADARS report said.

Lost in the debate over the cost and effectiveness of ADF’s is the decreasing role played by prescriptions opioids in the nation’s overdose epidemic. As PNN has reported, prescriptions for hydrocodone and other painkillers have been declining for years, yet drug overdoses continue to continue climb; fueled by heroin, illicit fentanyl and other illegal drugs, for which there are no abuse deterrent formulas other than abstinence and sobriety.

FDA Approves New Long Acting Painkiller

By Pat Anson, Editor

The U.S. Food and Drug Administration has approved a new extended release opioid pain medication with abuse deterrent properties.

Egalet Corporation announced Monday that the FDA has approved Arymo ER – a long-acting version of morphine -- for the management of pain severe enough to require daily, around-the-clock opioid treatment. It comes in the form of a pill that is very difficult to crush or liquefy, methods used by abusers to speed the release of an opioid into the bloodstream.

"With the majority of ER opioids in easy to abuse forms, it is important that healthcare professionals have additional treatment options like Arymo ER that are resistant to different methods of manipulation using a variety of tools," Bob Radie, president and CEO of Egalet said in a news release.

“Arymo ER has physical and chemical properties expected to make abuse by injection difficult which is important given it is the most common non-oral route of morphine abuse and the most dangerous.”

An FDA advisory panel recommended in a 18-1 vote last August that Arymo be approved. It is is the 7th opioid with abuse deterrent properties approved by the FDA. The other medications are OxyContin, Targiniq, Embeda, Hysingla, Morphabond, and Xtampza.

Arymo has been approved in three dosage strengths: 15 mg, 30 mg and 60 mg. Egalet plans to make the drug available in the first quarter of 2017.

Arymo is the first commercial product developed with Egalet’s Guardian technology, which incorporates the medication into a polymer matrix tablet to make it difficult to misuse or abuse.

“Guardian Technology results in tablets that are extremely hard, very difficult to chew, resistant to particle size reduction, and inhibit/block attempts at chemical extraction of the active pharmaceutical ingredient,” the company says in a statement on its website.

“In addition, the technology results in a viscous hydrogel on contact with liquid, making syringe-ability very difficult. These features are important to address the risk of accidental misuse (e.g., chewing) in patients with chronic pain, as well as intentional abuse using more rigorous methods of manipulation. “

The approval of abuse-deterrent medications is still somewhat controversial. Some medical professionals and anti-opioid activists say the technology does not completely prevent abuse and the drugs are still being misused by addicts.

Abuse Deterrent Pain Medications Deserve Support

Barby Ingle, Columnist

It's no secret that the abuse of pain medication and illegal opioids has led to a growing public health problem across the country. The numbers are alarming and they are growing.

Also alarming is the number of people who suffer with chronic pain. According to the Institute of Medicine, one in three Americans – about 100 million people – have been affected with a condition that causes pain.

Since 2002, I have been battling Reflex Sympathetic Dystrophy (RSD), a progressive neuro-autoimmune condition that affects multiple systems in the body. The worst symptom for me is the constant burning fire pain. It feels like someone put lighter fluid in me, lit it, and I can’t put the fire out. I know firsthand how difficult the journey for pain relief can be, particularly the sidelong glances and disbelief from medical professionals.

The challenges are complex and multi-layered, and I always applaud solutions that help to balance pain management with the cost that prescription drug abuse has on society. Promising technological advancements in recent years are proving to be an important part of the battle.

Among these are so-called "abuse deterrent formulas" (ADFs) of commonly prescribed opioid pain medications that are being developed to prevent some of the deadliest forms of opioid abuse. The formulas generally make it harder to crush or liquefy pills for snorting or injecting.

These tamper deterring formulas of pain medications provide patients with the same pain relief as conventional opioids, but incorporate breakthrough technology designed to protect against tampering and abuse.

Since Purdue Pharma introduced a reformulated abuse deterrent version of OxyContin (oxycodone ER) in 2010, the “nonmedical” or recreational use of OxyContin has fallen dramatically.  

source: radars system

Several states are considering legislation in 2017 to improve patient access to these new abuse deterrent formulas of painkillers. As bills are introduced and updated, the International Pain Foundation and other pain organizations track them on our websites, put out action alerts and ask for the pain patient community to get involved by sharing their stories.

ADFs have received widespread support as part of a comprehensive effort to combat prescription drug abuse and promote appropriate pain management, including from the Office of National Drug Control Policy, the Community Anti-Drug Coalitions of America, members of Congress, and the National Association of Attorneys General — including California Attorney General Kamala Harris, who was recently elected to the U.S. Senate.

Abuse of pain medications has led to a growing public health problem nationwide. Each year approximately 4.5 million Americans use prescription pain medications for non-medical purposes, contributing to more than 14,000 overdose deaths annually.

To date, the Food and Drug Administration has approved abuse-deterrent labeling for seven drugs (OxyContin, Targiniq, Embeda, Hysingla, Morphabond, Xtampaza, and Troxyca), with two other abuse-deterrent opioids under review.

This technology is only part of the solution, but it is a solution nonetheless. Patients that have struggled with addiction or substance abuse in the past, those who live with others who are current or recovering addicts, and those who live with teens or young adults who may seek opioids for recreational use can all benefit from ADFs.

For the sake of those with legitimate, life-altering pain and for the safety of those prone to abuse these medications, I urge our lawmakers to stand up for policies that preserve and improve patient access to ADF technology.

Barby Ingle suffers from Reflex Sympathetic Dystrophy (RSD) and endometriosis. Barby is a chronic pain educator, patient advocate, and president of the International Pain Foundation. She is also a motivational speaker and best-selling author on pain topics.

More information about Barby can be found at her website.

The information in this column should not be considered as professional medical advice, diagnosis or treatment. It is for informational purposes only and represents the author’s opinions alone. It does not inherently express or reflect the views, opinions and/or positions of Pain News Network.

FDA Approves New Version of Oxycodone

By Pat Anson, Editor

The U.S. Food and Drug Administration has approved a new extended released version of the opioid painkiller oxycodone that has abuse deterrent properties unlike anything else on the market.

The drug – called Xtampza – can be ingested in capsule form, but users can also sprinkle the capsule contents on soft foods or into a cup, and then directly into the mouth.

The medication, which can also be ingested through a feeding tube, is the sixth opioid pain medication with an abuse deterrent formula to be approved by the FDA.  

Xtampza is made by Massachusetts-based Collegium Pharmaceutical (NASDAQ: COLL) with proprietary technology that combines oxycodone with fatty acid and waxes to form small spherical beads that are placed inside the capsule.

The beads are designed to resist breaking, crushing, chewing, dissolving and melting, methods long used by drugs abusers to snort or inject opioids.  

collegium pharmaceutical image

That novel approach is different from other abuse deterrent formulas, which generally make it harder for tablets to be crushed or liquefied; or come with a chemical irritant to discourage tampering.

“The FDA approval of Xtampza ER is a major milestone for Collegium. Our DETERx technology platform was developed internally and our lead product completed an extensive battery of abuse-deterrent testing consistent with the FDA Guidance on Abuse-Deterrent Opioids,” said Michael Heffernan, CEO of Collegium.

Another advantage of Xtampza is that it gives an alternative to patients who have trouble swallowing tablets or capsules, a condition know as dysphagia.  

"People like me live with dysphagia that prevents us from swallowing normally all the time. Up until this new drug coming out, people not able to swallow have had to rely on liquids and patches for relief - not being able to take their oxycodone," said PNN columnist Ellen Lenox Smith, who suffers from Ehlers Danlos syndrome and sarcoidosis. She testified in favor of Xtampza's approval for the U.S. Pain Foundation.

"Although this is a medication not compatible to my body, I testified on it's behalf for those people around the country not able to take their medications and thus not getting the relief they deserve. I am thrilled that this got approved so soon and that people will have this as an option and hope that this safer  formula will help to calm the nerves of all the people out there concerned about addiction to opiates," Smith said.

“Xtampza ER also allows for flexible dosing administration for patients with difficulty swallowing. Patients or their caregivers often inadvertently crush their medication to facilitate swallowing, which can be very dangerous with currently marketed ER products,” said Dr. Jeffrey Gudin, Director of Pain Management and Palliative Care at Englewood Hospital and Medical Center.

Xtampza, which is designed to be taken twice a day by patients who need around-the-clock pain relief, comes with an FDA warning to take the medication with food. Taking it on an empty stomach could lead to inadequate pain control.

Collegium plans to launch Xtampza ER in the U.S. in mid-2016 with five dosage strengths equivalent to 10 mg, 15 mg, 20 mg, 30 mg and 40 mg oxycodone.

Canada: Abuse Deterrent Opioids Too Expensive

By Pat Anson, Editor

At a time when the U.S. Food and Drug Administration is actively promoting the development of more opioid pain medication with abuse deterrent formulas (ADFs), Canada is saying the drugs are too expensive and will have “little to no effect” in the fight against opioid abuse and addiction.

Health Canada last week rejected a proposed regulation that would require all medications containing the painkiller oxycodone to have tamper resistant properties.  ADFs generally make it harder for drug abusers to crush or liquefy opioids so they can be snorted or injected.

“(After) a review of the latest scientific evidence, the department has concluded that this specific regulatory approach, requiring tamper-resistance, would not have had the intended health and safety impact,” Health Canada said in a statement.

“Specifically, requiring tamper-resistant properties on all legitimate preparations of controlled-release oxycodone would have served to eliminate certain lower cost drugs from the market, increasing costs for patients and the health system, while having little to no effect in the fight against problematic opioid use.”

Like the United States, Canada has a severe and growing drug problem. According to the World Health Organization, Canada consumes more opioid painkillers per capita than any other country.

But Health Canada recently told drug makers to conduct more research demonstrating that ADFs do not change the safety and effectiveness of drugs. Until those studies are completed, the agency said it would rely on programs educating patients and prescribers about the safe use of opioids.

Purdue Pharma Canada released a statement saying it was disappointed in Health Canada’s decision and asked Health Minister Jane Philpott to reconsider.

“We continue to believe products with features designed to deter misuse, abuse and diversion, can and do have a positive impact on public health, based on the abundance of published evidence,” Purdue said in a statement. The company also urged Canada to “align with the FDA” by moving to require ADFs “across the entire class of opioids.”

In 2010, Purdue's OxyContin became the first opioid to be reformulated to make it harder for addicts to crush or liquefy. Since then, four other ADF opioids have been approved by the FDA and drug makers have spent hundreds of millions of dollars developing new formulas to make opioids even harder to abuse. Last month the FDA issued draft guidance encouraging drug makers to develop generic versions of opioids with ADF.

A major issue that has slowed the use of opioids with ADF is their cost. According to the Healthcare Bluebook, a website that estimates the market price of medications, the fair price for a 60-day supply of OxyContin 20mg in southern California is $352. A 60-day generic version of oxycodone -- without abuse deterrence -- retails for as little as $138.

Many health insurers have been reluctant to pay the extra cost of ADF.  A recent study found that only a third of Medicare Part D plans cover OxyContin and in many cases prior authorization is needed. Oxycodone, however, is covered by all Medicare Part D plans and prior authorization is rarely required.

Another recent study found that over a quarter of patients admitted to drug treatment facilities in the U.S. were still abusing OxyContin, five years after it was reformulated.

Opioid Abuse Takes Back Seat to Cost at Medicare

By Pat Anson, Editor

The U.S. Food and Drug Administration calls the development of abuse deterrent opioids a “priority” in combatting the so-called epidemic of prescription painkiller overdoses.

But when it comes to Medicare coverage of opioids, new research shows that lowering the cost of painkillers is a bigger priority for the federal government than discouraging abuse.

The study by Avalere, a health analytics research firm, found that Medicare Part D coverage of abuse deterrent OxyContin is falling rapidly. From 2012 to 2015, OxyContin coverage fell from 61% to 33% of Medicare Part D plans. In addition, one quarter of Part D plans now require prior authorization for OxyContin. 

In contrast, a generic version of OxyContin (oxycodone hydrochloride) that has no abuse-deterrent properties is covered by all Medicare Part D plans – and prior approval for it is only needed in 0.3% of Part D plans.

“While prescription opioid abuse continues to be a priority for public health experts and lawmakers, coverage for these products by Part D plans is limited and plans are increasingly favoring lower-cost generic products on their formularies,” said Caroline Pearson, senior vice president at Avalere.

“Policymakers seeking to limit opioid abuse will have to balance the desire for greater access to abuse-deterrent opioids with the increased costs of such medications to public programs and private payers.”

OxyConin was reformulated by Purdue Pharma in 2010 to make it harder for addicts to crush or liquefy for snorting and injecting. In 2014, the FDA approved three other opioids with abuse deterrent properties and in April of this year issued guidance to drug makers strongly encouraging them to develop more.  

“The science of abuse-deterrent medication is rapidly evolving, and the FDA is eager to engage with manufacturers to help make these medications available to patients who need them,” said FDA Commissioner Margaret Hamburg, MD. “We feel this is a key part of combating opioid abuse.”

But combating opioid abuse apparently takes a back seat to price, not only for Medicare but private insurers and the drug makers that developed abuse deterrent formulations.

According to the Healthcare Bluebook, a website that estimates the market price of medications, the “fair price” for a 60-day supply of OxyContin 20mg is $316.

A 60-day generic version of oxycodone -- without abuse deterrence -- retails for just $78.

“It will be important for policymakers to monitor and consider the implications of these trends,” the Avalere study says, warning that abuse-deterrence formulations may be pricing themselves out of the market.

“The potential increase in costs due to new innovations may be a barrier to policies that increase the coverage of abuse-deterrent opioids, especially in public programs, despite potential long-term public health savings associated with lower levels of opioid abuse. While the greater number and quality of abuse-deterrent options—both brand and generic—can support competition, reduce cost, and increase plan coverage, the potential of abuse-deterrent technologies may not be fully realized as long as non–abuse deterrent alternatives have less restrictive insurance coverage.”

Funding for the Avalere study came from Pfizer. Avalere says it maintained “full editorial control” over its content.

Over 16,500 deaths in the U.S. were linked to opioid overdoses in 2010, according to the CDC. The government estimates that over 400,000 seniors are  “misusing” pain medication.

According to the National Institutes of Health, only about 5% of patients taking opioids as directed for a year end up with an addiction problem.

FDA Issues Guidance on Abuse Deterrent Opioids

By Pat Anson, Editor

The U.S. Food and Drug Administration has released its long-awaited guidance on abuse-deterrent opioids, beating a Congressional deadline and a potential loss of $20 million in funding.

The document “Guidance for Industry: Abuse-Deterrent Opioids – Evaluation and Labeling” explains the FDA’s current thinking about abuse-deterrent properties and recommends to drug makers how clinical studies should be conducted to evaluate their effectiveness.

Abuse deterrent formulas are intended to make it harder for drug abusers to crush or liquefy a narcotic painkiller for snorting or injecting. But the evidence is mixed that they actually work.

“It should be noted that these technologies have not yet proven successful at deterring the most common form of abuse — swallowing a number of intact capsules or tablets to achieve a feeling of euphoria. Moreover, the fact that a product has abuse -deterrent properties does not mean that there is no risk of abuse.  It means, rather, that the risk of abuse is lower than it would be without such properties. Because opioid products must in the end be able to deliver the opioid to the patient, there may always be some abuse of these products,” the FDA said in its report.

The agency has been under pressure from Congress to move faster in developing guidelines for abuse deterrence. An appropriations bill passed late last year would have moved $20 million in funding from the FDA’s Commissioner’s office if the guidance wasn’t released by June 30.

“The science of abuse-deterrent medication is rapidly evolving, and the FDA is eager to engage with manufacturers to help make these medications available to patients who need them,” said FDA Commissioner Margaret Hamburg, MD. “We feel this is a key part of combating opioid abuse. We have to work hard with industry to support the development of new formulations that are difficult to abuse but are effective and available when needed.”

So far only four opioids have been approved with abuse-deterrent formulas, OxyContin, Embeda, Targiniq and Hysingla. The latter was recently introduced by Purdue Pharma as the only “pure” hydrocodone extended release product with abuse-deterrence.

Purdue’s reformulated version of OxyContin was the first opioid to have abuse deterrence. It was introduced in 2010, at a time when the painkiller was widely being abused.

A recent study by researchers at Washington University’s School of Medicine in St. Louis found that over a quarter of drug abusers entering treatment facilities admitted they still abused OxyContin. About a third of the abusers said they had found a way to inhale or inject it. The rest took the painkiller orally.

One unintended consequence of reformulating OxyContin is that 70% of the drug abusers who stopped using it and who switched to other narcotics started using heroin.

"The newer formulations are less attractive to abusers, but the reality is -- and our data demonstrate this quite clearly -- it's naïve to think that by making an abuse-deterrent pill we can eliminate drug abuse. There are people who will continue to use, no matter what the drug makers do, and until we focus more on why people use these drugs, we won't be able to solve this problem,” said senior investigator Theodore J. Cicero, PhD, a professor of neuropharmacology in psychiatry.

Some patients believe the reformulated version of OxyContin is less effective as a pain reliever and causes gastrointestinal problems because it is harder to digest.

The FDA said it would take “a flexible, adaptive approach” to the future evaluation and labeling of abuse-deterrent products.

“Development of abuse-deterrent products is a priority for the FDA, and we hope this guidance will lead to more approved drugs with meaningful abuse-deterrent properties,” said Janet Woodcock, MD, director of the FDA’s Center for Drug Evaluation and Research.

“While abuse-deterrent formulations do not make an opioid impossible to abuse and cannot wholly prevent overdose and death, they are an important part of the effort to reduce opioid misuse and abuse.”

Over 16,500 deaths in the U.S. were linked to opioids in 2010. According to the National Institutes of Health, only about 5% of patients taking opioids as directed for a year end up with an addiction problem.

OxyContin Still Being Abused by Addicts

By Pat Anson, Editor

Drug addicts are still finding ways to snort and inject OxyContin, five years after the painkiller was reintroduced in an abuse deterrent formula.

Researchers at Washington University School of Medicine in St. Louis surveyed almost 11,000 opioid abusers at 150 drug-treatment facilities and found that over a quarter of them still abused the painkiller, even though the new formulation of OxyContin is harder to crush or liquefy. Their study is being published in JAMA Psychiatry.

The abuse-deterrent formulation of OxyContin was introduced by Purdue Pharma in 2010, at a time when the painkiller was widely being abused. Nearly half of patients entering drug treatment facilities that year for opioid abuse said they had used OxyContin to get high at least once in the previous 30 days.

Two years later, after the abuse-deterrent formulation was introduced, the percentage of opioid abusers entering rehab who used OxyContin had fallen to 26 percent.

"We found that the abuse-deterrent formulation was useful as a first line of defense. OxyContin abuse in people seeking treatment declined, but that decline slowed after a while," said senior investigator Theodore J. Cicero, PhD, a professor of neuropharmacology in psychiatry.

"The newer formulations are less attractive to abusers, but the reality is -- and our data demonstrate this quite clearly -- it's naïve to think that by making an abuse-deterrent pill we can eliminate drug abuse. There are people who will continue to use, no matter what the drug makers do, and until we focus more on why people use these drugs, we won't be able to solve this problem."

The findings are not unexpected, according to a prominent pain physician.

“No one should expect that ADF's (abuse deterrent formulations) are not going to be abused.  They will.  Some ADF's will be more effective in deterring certain methods of abuse like injecting or snorting.  People who want to abuse can just take more orally or with enough effort can overcome the ADF technology,” said Lynn R. Webster, MD, a past president of the American Academy of Pain Medicine and vice president of scientific affairs at PRA Health Sciences.

“As long as an opioid has rewarding properties a certain part of society will seek them out for abuse.  This is why we need to be realistic about what an ADF can accomplish.  We need to decrease the demand and eventually replace the type of opioids that produce liking with drugs that are not as rewarding but more effective.”   

Researchers say about a third of the addicts who still abused OxyContin had found a way to inhale or inject it. The rest took the painkiller orally. Even more worrisome, almost half of the drug abusers surveyed in 2014 reported they had used heroin in the 30 days before they entered treatment.

"Some people found ways to get around the abuse-deterrent formulation so that they could snort or inject it, and others simply swallowed the pills," Cicero explained. "But many people switched to heroin, and that's a major concern."

Cicero says 70% of the addicts who stopped using OxyContin and switched to other drugs were using heroin.

“Abuse-deterrent formulations can have the intended purpose of curtailing abuse, but the extent of their effectiveness has clear limits, resulting in a significant level of residual abuse. Consequently, although drug abuse policy should focus on limiting supplies of prescription analgesics for abuse, including ADF technology, efforts to reduce supply alone will not mitigate the opioid abuse problem in this country,” Cicero wrote in the study.

“We agree with Dr. Cicero that abuse-deterrent formulations are a valuable public health tool that must be part of any comprehensive approach to combatting prescription drug abuse. The report parallels other studies that show reformulated OxyContin is associated with a reduction in abuse,” said David Haddox, MD, V.P. of health policy at Purdue Pharma.  

“The product’s label states that OxyContin has physical and chemical properties expected to make abuse via injection difficult and to reduce abuse via snorting. The label also states that abuse of OxyContin by these routes, as well as the oral route, is still possible.”

Many pain patients with legitimate prescriptions for OxyContin say the abuse deterrent formulation is not as effective at providing pain relief as the old one. Others complain about side effects such as gastrointestinal problems.

Abuse deterrent technology is a key part of the Food and Drug Administration’s efforts at combatting the so-called epidemic of prescription drug abuse. Over 16,500 deaths in the U.S. were linked to opioids in 2010.

According to the National Institutes of Health, only about 5% of patients taking opioids as directed for a year end up with an addiction problem.