Safe & Effective Management of Chronic Pain: A Primary Care Core Competency Lemuel Shattuck Hospital Addiction Conference March 2, 2015 Christopher W. Shanahan, MD, MPH, FACP Assistant Professor of Medicine Boston University School of Medicine Boston Medical Center Certified: Internal Medicine (ABIM) & Addiction Medicine (ASAM ) No Conflicts of Interest 1
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Safe & Effective Management of Chronic Pain:
A Primary Care Core Competency
Lemuel Shattuck Hospital Addiction Conference
March 2, 2015
Christopher W. Shanahan, MD, MPH, FACPAssistant Professor of Medicine
Boston University School of MedicineBoston Medical Center
Certified: Internal Medicine (ABIM) & Addiction Medicine (ASAM )
No Conflicts of Interest
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Learning objectives
• Understand the etiology & consequences of the U.S. prescription opioid epidemic.
• Understand rationale for & methods to:
• Risk assess patients prior to treating pain with opioid medications.
• Monitor benefit & risk associated with pain management using opioid medications.
• Refer or discontinue opioid medications.
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The Problem…Under-treatment of pain
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Opiophobia
Addiction / Diversion ↑ Safety / Liability ↑Quality of Care ↓4
Opioid sales, opioid-related deaths &
opioid treatment admissions
Warner et al. 20115
Drug overdose deaths by major type in U.S., 1999-2011
National Vital Statistics System 2014. 6
Source for Most Recent Nonmedical use (Past year users > 11 yo) 2012-2013
Where Pain Med Rx’s were obtained…
9SAMHSA, OAS, NSDUH data , 2013
Where are all these meds coming from?•Legitimate Provider Rxs (acute &
Acute & Post-operative Pain• Moderate to good Evidence.
• Guidelines?• Standard of Care
Chronic Non-Cancer Pain• Insufficient evidence for role of opioids
• Guidelines exist.• Standard of Care?
Cancer Pain• Role of opioids • Strong Evidence• Clear Guidelines• Standard of Care
Chou R, Ann Intern Med. 2015 The Effectiveness and Risks of Long-Term Opioid Therapy for Chronic Pain: A Systematic Review for a National Institutes of Health Pathways to Prevention Workshop
Chou R et.al. Research gaps on use of opioids for chronic non-cancer pain: findings from a review of the evidence for an American Pain Society and American Academy of Pain Medicine clinical practice guideline. J Pain. 2009
Hegmann KT, et.al. ACOEM practice guidelines: opioids for treatment of acute, sub-acute, chronic, and postoperative pain. J Occup Environ Med. 2014
Wait, wait…. How did we get here?• Historically, under-treatment of disorders appropriate for opioid
therapy: cancer pain, pain at the end-of-life, & acute pain
• Small, non-RCT studies of safety & efficacy of opioids for chronic non-cancer pain (CNP) suggesting
moderate effectiveness.• Treatment of pain in general prioritized (5th Vital sign: American
Pain Society in 1995, JACHO, 1999)• Aggressive marketing of opioids for CNP citing these studies.• Use of opioids to treat CNMP increased & incorporated into
clinical guidelines becoming an accepted, but non-evidence-based standard of care.• Portenoy & Foley, 1986; Nyswander & Dole, 1986) • “The Tragedy of Needless Pain”, (Melzack, 1990)
• Many of the original medical proponents have been investigated for industry ties and conflicts of interest.
• Finally as overdoses and addiction explode – the clothes of the emperor are being critically considered.
Critical research gaps in treatment of chronic non-cancer pain using opioids
• Lack of effectiveness on long-term benefits in context of known harms of opioids (incl. drug abuse, addiction, & diversion)
• Insufficient evidence for optimal approaches to risk stratification, monitoring, or initiation & titration of opioid therapy
• No evidence on: • Utility of informed consent & opioid management plans• Utility of opioid rotation• Benefits & harms of methadone or high dose opioids• treatment of patients with chronic non-cancer pain at
higher risk for drug abuse or misuse.Chou R J Pain. 2009
Chronic Pain and the Unexpected• 66 yo ♂ here for follow-up Primary Care.• Hx: Longstanding T2DM, HTN, OSA and Severe diabetic
neuropathy confirmed by Neurology.• Ibuprofen & Acetaminophen tried with no or limited effect.• Pt still requesting treatment for lower extremity pain.• New meds prescribed:
• Oxycodone (5 mg) / APAP (325 mg). 1 tab po qid X 28 days; Disp: #112.
• Gabapentin 300 tid (tapered start).• FU visit in 1 month.• 12 days later patient calls:
• Out of pain medication & requesting oxycodone refill. • Took more pills than Rx’d b/o inadequate pain relief.• Pain is 12/10.• Not taking gabapentin because “Doesn’t do anything”.
Case
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Goals
•Goal 1: Avoid / Mitigate this situation. • Set expectations - Informed consent
• Assess for risk.
•Goal 2: Maximize Benefit (Safety & Quality of Care).
• Pain management plan.
•Goal 3: Minimize risk.
• Prepare for the unexpected.
• Establish monitoring plan.
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Case
Setting expectations - Informed consent
Set Expectations: • “Pain free” is not a realist expectation. • Treatment as a “Trial” – Reserving the right to stop
the medications if response is inadequate or unsafe.
Patient Responsibilities:• Communication if unacceptable levels of post-operative
• Pain relief, Increased function, Quality of Life.
• Risks • Side effects: physical dependence; sedation.• Misuse, abuse, addiction, overdose, death.• Drug interactions.
Paterick et al. Mayo Clinic Proc. 200817
Case
Pre-prescribing opioid risk assessment1. Screen for Risk
Substance Use
• Single Item Drug & Alcohol
2. Check Massachusetts Prescription Medication Program (PMP)
3. Use Opioid Risk Tool (ORT)
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Case
Don’t Forget!!!!What you are
treating? Establish pain
etiology.
Single item drug & alcohol risk screening Drug
• “How many times in the past year have you used an illegal drug or used a prescription medication for non-medical reasons?”• If asked to clarify meaning of “non-medical reasons”, add
"for instance because of the experience or feeling it caused"
• = Response >0 100% sens., 74% spec. for Drug Use Disorder93% sens. & 94% spec. for Past-year Drug Use
Alcohol (NIAAA): • “Do you sometimes drink beer wine or other
alcoholic beverages? How many times in the past year have you had 5 (4 for women) or more drinks in a day?”
• = Response >0 82% sens., 79% spec. for Alcohol Use Disorder
Smith PC, et.al. 2010.
NIAAA. Clinicians Guide to Helping Patients Who Drink
Too Much, 2007.
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Case
Massachusetts Prescription Medication Program (PMP)
• A secure website supporting safe prescribing & dispensing.
• A licensed prescriber or pharmacist may obtain authorization, to view the prescription history of a patient for the past year.
• MA Online PMP assists state & federal agencies address prescription drug diversion …supports ongoing, specific controlled substances-related investigations.
2.Figure it out & make a Diagnosis.• Unfounded patient expectations? • Inadequate pain-management? • Progression of disease?• New disease process? • Misuse? Addiction? Diversion?
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Case
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4 yrs later: Managing chronic pain• Pt (70 yo) stable on MS Contin 60 mg bid. (~3.5 ys.).
• Today: Monthly Follow-up visit for refills. • Patient reports:
Monitoring Aberrant BehaviorsSOAPP® Screener & Opioid Assessment for Patients with Painhelps determine required monitoring for Pts on long-term opioid therapy
0 1 2 3
41. How often do you have mood swings? 2. How often do you smoke a cigarette within an hour after you wake up? 3. How often have any of your family members, including parents and grandparents, had a problem with alcohol or drugs?
4. How often have any of your close friends had a problem with alcohol or drugs? 5. How often have others suggested that you have a drug or alcohol problem? 6. How often have you attended an AA or NA meeting? 7. How often have you taken medication other than the way that it was prescribed? 8. How often have you been treated for an alcohol or drug problem? 9. How often have your medications been lost or stolen? 10. How often have others expressed concern over your use of medication? 11. How often have you felt a craving for medication? 12. How often have you been asked to give a urine screen for substance abuse? 13. How often have you used illegal drugs (for example, marijuana, cocaine, etc.) in the past five years?
14. How often, in your lifetime, have you had legal problems or been arrested? 0 = Never, 1 = Seldom, 2 = Sometimes, 3 = Often, 4 = Very OftenA score of 7 or higher is considered positive.
Urine Drug Testing (UDT): Key to opioid prescribingWhy to do it:
• Provides objective information supporting safety (patient & public).
• Demonstrates med adherence. Is patient using the Rx?• Shows substances that patient shouldn’t be using?• Helps prevent abuse if pts know drug tests will occur.
How to Discuss UD Testing with Patients:• Some providers feel awkward discussing UDT’ing.• Frame as a personal & public health safety issue.• Remind patients that:
• Opioid are dangerous & Providers can’t tell which pts will develop problems.
• Its the Standard of care for treatment with these medications.
• You monitor all your patients: Universal Precautions (No singling out).
When to Perform Urine Drug Testing:• No clear standard: Regular scheduled basis vs. Random.• Implement when concerns arise (e.g. aberrant behavior).