Ballyhooing abuse deterrence is Pharma's attempt to change the subject in the midst of an opioid epidemic.
Abuse-deterrent Opioids: A Fraught Approach to an Epidemic
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By: Michael Ferguson
Sunday, March 01, 2015
Filed under: Regulatory & Compliance |
Risk Management |
Treatments & Techniques |
Pain Management
Since 1999, the United States’ rapidly escalating epidemic of prescription drug abuse has directly correlated with a nearly 300 percent uptick in prescription painkiller sales, according to the CDC. abuse-deterrent formulations of some of these drugs are now available, but what problem are they addressing?
In 2008, prescription painkillers — opioid pain relievers — were involved in nearly 15,000 overdose deaths — more than the combined death count attributed to cocaine and heroin, the CDC notes. Nonetheless, in 2012, providers wrote 259 million prescriptions for these pain relievers for a broad range of conditions, the CDC reports.
As one strategy to curtail misuse, pharmaceutical companies are producing abuse-deterrent formulations of opioid pain relievers such as hydrocodone and oxycodone. In late 2014, the FDA approved Hysingla ER (hydrocodone bitartrate) to treat severe pain that requires daily, long-term opioid treatment.
Abuse-deterrent formulations, such as the one marketed in Hysingla ER, essentially prevent manipulating the drug, by crushing or chewing it, to deliver the maximum dose of the opioid immediately. The pills also form a thick hydrogel that inhibits preparing a crushed pill for injection.
Yet even as it announced approval of Hysingla ER, the FDA included disclaimers about the potential for misuse of abuse-deterrent opioids. While abuse-deterrent formulations may reduce overdose deaths resulting from injection or snorting, the strategy does not address oral consumption, the most common method of prescription drug abuse.
“My chief concern about abuse-deterrent opioids is that when you make pills harder to crush, snort or inject, you’re not making them less addictive,” says Andrew Kolodny, MD, Director of Physicians for Responsible Opioid Prescribing and Chief Medical Officer at Phoenix House, a drug and alcohol abuse treatment provider. “Almost everyone who develops the disease of opioid addiction — whether they’re the recreational user or pain patient — develops the disease through oral abuse.”
This is particularly evident in patients who are prescribed opioids for chronic pain but fail to gain sufficient relief, notes Lynn Webster, MD, Vice President of Scientific Affairs at PRA Health Sciences and past president of the American Academy of Pain Medicine.
“[Pain patients] tend not to manipulate but take in excess of what was prescribed in order to get pain relief, and the new forms will not prevent that from happening,” Dr. Webster says. “These forms will not prevent the most common method of abuse.”
When indicated — commonly for end-of-life analgesia and cancer-related pain — opioid pain relievers are exceptionally effective, but marketing these powerful medications as potentially “safer” versions of themselves carries possibly catastrophic consequences, some observers say.
“The problem with calling them ‘abuse-deterrent pills’ is that it gives people — including prescribers — the impression that the pill is safer and maybe less addictive,” Dr. Kolodny says. “If physicians think [an opioid] is somehow a less addictive pill because it’s being marketed as abuse-deterrent, they prescribe it for low-back pain when they really shouldn’t be giving an opioid for low-back pain.”
Perceiving the medications as safe, providers may lean on them to treat a number of chronic pain conditions because of their notable analgesic qualities, he adds. But for many chronic pain conditions, such strategies are fruitless.
“Opioids are lousy drugs for low-back pain, fibromyalgia and chronic headaches, not only because of the risk for addiction, but because they’re unlikely to work,” Dr. Kolodny says.
“We were misled by a very effective marketing campaign to believe that the compassionate way to help people with chronic pain was aggressive opioid prescribing, and that turned out not to be true.”
— Andrew Kolodny, MD, Director of Physicians for Responsible Opioid Prescribing, Chief Medical Officer at Phoenix House
Tennessee Health Commissioner John Dreyzehner, MD, MPH, FACOEM, says the medical evidence supporting opioid treatment for chronic conditions doesn’t add up.
“Despite what many were led to believe, there was never sufficient evidence — and still isn’t — for use of these highly addictive opioid medications for chronic benign pain,” Dr. Dreyzehner says. “For many patients, other modalities or medication such as a combination of acetaminophen and ibuprofen is a more effective and less abuse-prone pain reducer. By focusing on pills, we missed opportunities to better study pain itself and the use of other modalities to relieve it.”
The Physician’s Responsibility
The underlying issue of the prescription drug problem is addiction, and opioid abuse should be treated similarly to any other addiction. But when opioid pain relievers are indicated, responsible prescribing can reduce the likelihood of addiction.
“Opioids have significant risk, but in a subset of patients, the benefits do outweigh the risks,” Dr. Webster says. “It’s an assessment of needs and balancing that risk/benefit ratio to determine whether an opioid should be prescribed, and once prescribed, then patients need to be monitored very closely.”
Several screening mechanisms can help providers monitor patients for signs of drug abuse:
- Urine testing reveals the presence of other drugs in the system, potentially identifying patients with addiction problems, and also identifies whether patients are using their prescriptions.
- Close monitoring by a committed physician can help prevent addiction, but that is effective only if patients cooperate.
- Consulting a state’s prescription drug-monitoring program can identify “doctor shoppers” and drug seekers.
But because addiction, not drug abuse, is the public health issue, these mechanisms won’t stem the tide of the prescription drug epidemic, according to Dr. Kolodny.
Instead, the key to curbing opioid abuse is stopping it before it begins.
When it comes to addictive drugs, “instead of supply reducing demand, supply creates demand,” says Dr. Dreyzehner. “We have steadily increased the supply of these legal, highly regulated and controlled medications. We should not be surprised that demand has risen in virtual lockstep. This current epidemic will end when supply is constrained, current users stop and new users are not recruited.”