The second example compared script prices of seven opioid agonists, including Tramadol and Oxymorphone. Oxymorphone was the highest-priced script at $600 and Tramadol the lowest at $60 per script, suggesting a saving of as much as $540 if Tramadol were to be prescribed instead of Oxymorphone.
But prescribing oxymorphone when tramadol could suffice or vice versa could be regarded as an act of gross negligence by the physician. On the World Health Organization (WHO) analgesic ladder, tramadol and codeine are weak opioids regarded as “step two” while acetaminophen and NSAIDs are “step one.” “Step three” opioids include medications such as morphine, oxycodone and oxymorphone, which all differ in their pharmacodynamics and pharmacokinetics, so choosing one or more to treat pain becomes a balance between possible adverse effects and the desired analgesic effect. Oxymorphone (stronger than morphine or oxycodone) is recommended for use only when a person has not responded to or cannot tolerate morphine or other analgesics to control their pain.
A list of opioid medications published by Purdue Pharma was used to identify which opioids were excluded from the Texas formulary. The list of more than 1,000 opioid analgesics was prepared by Purdue to comply with the state of Vermont law 33 V.S.A. section 2005a, requiring pharmaceutical manufacturers to provide physicians with a list of all drugs available in the same therapeutic class. Being in the same class, however, does not necessarily mean they are interchangeable or have the same efficacy or safety.
The list showed available strengths and included (1) immediate and extended release, (2) agonists such as fentanyl, oxycodone, hydrocodone, oxymorphone, tramadol, codeine, hydromorphone, methadone, morphine, tapentadol and levorphanol and (3) combinations such as acetaminophen with codeine, oxycodone with acetaminophen, oxycodone with asprin, oxycodone with ibuprofen, hydrocodone with acetaminophen, hydrocodone with ibuprofen, acetaminophen-caffeine with dihydrocodeine, aspirin-caffeine with dihydrocodeine and tramadol with acetaminophen.
It appears that extended-release medications used for around-the-clock treatment of severe chronic pain have been excluded or are not listed in the Texas formulary, with a few exceptions. For example, 80mg OxyContin (Oxycodone) ER 12 hour (AWP $18, Medi-Cal $15) is excluded. 120mg Hysingla (Hydrocodone) ER 24 hour (AWP $41, Medi-Cal $34) is not listed. However, 200mg MS Contin (Morphine) ER 12 hour (AWP $31, Medi-Cal $26) and 100mcg Fentanyl 72 hour transdermal patch in both brand name and generic forms are approved under the Texas formulary. Immediate-release generic medications such as oxycodone, hydromorphone and hydrocodone with acetaminophen in all strengths are approved, but immediate-release hydrocodone with ibuprofen and oxymorphone in either immediate or extended release are excluded.
Would the objective of AB1124 be achieved by utilizing the Texas formulary? The above review suggests it would not. All the opioid medications available through the Texas formulary have the potential to cause addiction and be abused, possibly leading to death either accidentally or intentionally. As an example, the executive director of the Medical Board of California has filed accusations against Dr. Henri Eugene Montandon for unprofessional conduct including gross negligence. His patient was found dead with three 100mcg fentanyl patches on his upper chest. The autopsy revealed he potentially had toxic levels of fentanyl, codeine and morphine in his bloodstream at time of death. These three opioids are available under the Texas formulary.
An article published on the website www.startribune.com described the challenges in treating returning soldiers from combat duty. The article discusses Zach Williams, decorated with two Purple Hearts who was found dead in his home from a fatal combination of fentanyl and venlafaxine, an antidepressant. Venlafaxine in both immediate- and extended-release form is approved in the Texas formulary. In addition, the following statement was made in a 2011 CWCI study into fentanyl: “Of the schedule II opioids included in the Institute’s study, the most potent is fentanyl, which is 75 to 100 times more powerful than oral morphine.”
The top 20 medications identified by the 2013 NCCI prescription drug study were also compared with the Texas formulary, and six medications were found to be excluded, including three extended-release opioids, OxyContin (Oxycodone), Opana ER (Oxymorphone) and the once-daily Kadian ER (Morphine). The twice-daily, extended-release morphine MS Contin, however, was approved. Flector, a non-steroidal anti-inflammatory transdermal patch used for acute pain from minor strains and sprains, was excluded, as was carisoprodol a muscle relaxant classified by the DEA as a Schedule IV medication (the same as Tramadol). The Lidocaine transdermal patch, which is a local anesthetic available in both brand name and generic. was also excluded. Lidocaine patches have been found to assist in controlling pain associated with carpal tunnel syndrome, lower back pain and sore muscles. Apart from carisoprodol, it would appear the remaining five were excluded from the Texas formulary because of their high price rather than concerns regarding their safety or potential for abuse.
The U.S. Food and Drug Administration (FDA) is responsible for the approval of all medications in the U.S. Its approved list is the U.S. pharmacy formulary (or closed formulary). California workers’ compensation uses this list for treatment and the Medi-Cal formulary for medication pricing. In comparison, Texas workers’ compensation uses its own formulary, which is a restricted list of FDA-approved medications, and pays a higher price for approved medications than California's system does.
Implementing an evidence-based formulary, such as in Texas, may result in an injured worker's not having the same choice of medications as a patient being treated for pain under California’s Medicaid healthcare program. How can this be morally justified? Will we see injured workers paying out-of-pocket to receive the medications necessary to control their pain?
Claims administrators can greatly reduce pharmaceutical costs through their own initiatives by (1) ensuring that they pay no more than the Department of Industrial Relations (DIR) published price for a medication, (2) ensuring that physicians within their medical provider network (MPN) treat pain using the established pharmacological frameworks such as the WHO analgesic ladder, (3) ensuring that quantities and medication strengths are monitored, along with how a person has responded to analgesics, (4) ensuring that, when controlling pain with opioids, there is a heightened awareness for potential abuse, misuse and addiction, (5) establishing a multimodal pain management regimen including non-pharmacological therapies such as acupuncture, aerobics, pilates, chiropractic and physical therapy tailored to a person’s medical condition and, (6) for chronic pain, considering introducing an Internet-delivered pain management program based on the principles of cognitive behavioral therapy.
The progress of many of these initiatives can be automatically monitored through a claims administrator’s technology solution, where a yellow or red flag is raised when prices paid exceed the legislated maximum amounts, when a pharmacological step therapy or progressive plan has been breached or when non-pharmacological therapy goals have not been achieved.
Using these initiatives, as opposed to restricting specific manufacturers or medications through a closed formulary, will undoubtedly yield a far better outcome for the injured worker and lower the cost to the employer, benefiting all involved.