Journal of General Internal Medicine

, Volume 26, Issue 12, pp 1450–1457

Long-Term Chronic Opioid Therapy Discontinuation Rates from the TROUP Study

  • Bradley C. Martin
  • Ming-Yu Fan
  • Mark J. Edlund
  • Andrea DeVries
  • Jennifer Brennan Braden
  • Mark D. Sullivan
Original Research

DOI: 10.1007/s11606-011-1771-0

Cite this article as:
Martin, B.C., Fan, MY., Edlund, M.J. et al. J GEN INTERN MED (2011) 26: 1450. doi:10.1007/s11606-011-1771-0

ABSTRACT

OBJECTIVE

To report chronic opioid therapy discontinuation rates after five years and identify factors associated with discontinuation.

METHODS

Medical and pharmacy claims records from January 2000 through December 2005 from a national private health network (HealthCore), and Arkansas (AR) Medicaid were used to identify ambulatory adult enrollees who had 90 days of opioids supplied. Recipients were followed until they discontinued opioid prescription fills or disenrolled. Kaplan Meier survival models and Cox proportional hazards models were estimated to identify factors associated with time until opioid discontinuation.

RESULTS

There were 23,419 and 6,848 chronic opioid recipients followed for a mean of 1.9 and 2.3 years in the HealthCore and AR Medicaid samples. Over a maximum follow up of 4.8 years, 67.0% of HealthCore and 64.9% AR Medicaid recipients remained on opioids. Recipients on high daily opioid dose (greater than 120 milligrams morphine equivalent (MED)) were less likely to discontinue than recipients taking lower doses: HealthCore hazard ratio (HR) = 0.66 (95%CI: 0.57–0.76), AR Medicaid HR = 0.66 (95%CI: 0.50–0.82). Recipients with possible opioid misuse were also less likely to discontinue: HealthCore HR = 0.83 (95%CI: 0.78–0.89), AR Medicaid HR = 0.78 (95%CI: 0.67–0.90).

CONCLUSIONS

Over half of persons receiving 90 days of continuous opioid therapy remain on opioids years later. Factors most strongly associated with continuation were intermittent prior opioid exposure, daily opioid dose ≥ 120 mg MED, and possible opioid misuse. Since high dose and opioid misuse have been shown to increase the risk of adverse outcomes special caution is warranted when prescribing more than 90 days of opioid therapy in these patients.

KEY WORDS

opioids opioid misuse persistence discontinuation 

Copyright information

© Society of General Internal Medicine 2011

Authors and Affiliations

  • Bradley C. Martin
    • 1
  • Ming-Yu Fan
    • 2
  • Mark J. Edlund
    • 3
  • Andrea DeVries
    • 4
  • Jennifer Brennan Braden
    • 2
  • Mark D. Sullivan
    • 2
  1. 1.College of Pharmacy, Division of Pharmaceutical Evaluation and PolicyUniversity of Arkansas for Medical SciencesLittle RockUSA
  2. 2.Department of Psychiatry and Behavioral Sciences, Division of Consultation-Liaison PsychiatryUniversity of WashingtonSeattleUSA
  3. 3.Department of Psychiatry and Behavioral SciencesUniversity of Arkansas for Medical SciencesLittle RockUSA
  4. 4.HealthCoreWilmingtonUSA

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