Chronic Opioid Therapy Utilization Following an Acute Pain Prescription Supply Restriction Law: An Interrupted Time Series Analysis

BACKGROUND: Florida House Bill 21 (HB21) was implemented in July 2018 to limit Schedule II opioids prescriptions for patients with acute pain to a 3-day supply. Little is known about the potential unintended effects that such opioid restriction policies may have on chronic pain patients, who are exempt from the law. OBJECTIVE: We aimed to evaluate the effect of HB21 on opioid utilization measures among a cohort of chronic opioid therapy (COT) patients. STUDY DESIGN: A quasi-experimental design with interrupted time series analyses. SETTING: Pharmacy claims from January 1, 2015 to June 31, 2019 from a large employer-based health plan in Florida. METHODS: COT patients were those who received a >= 70 days’ supply of opioids in the prior 90 days, representing 15,310 patients. Interrupted time series analyses were conducted to compare the following monthly measures among COT patients before and after HB21 implementation: 1) number of COT patients, 2) daily Morphine Milligram Equivalents [MMEs], 3) days’ supply of prescriptions. RESULTS: There was a significant 25% reduction in the trend (pre-HB21 RR: 0.95, 95% CI: 0.93, 0.96 versus post-HB21 RR: 0.70, 95% CI: 0.65, 0.76) and an 8% immediate decrease (RR: 0.92, 95% CI: 0.88, 0.97) in the monthly prevalence of COT patients after HB21 implementation. However, no significant change was observed in trends for monthly number of days supplied per prescription, monthly MMEs per COT patient-day, or total MMEs per prescription. LIMITATIONS: Our study used data from employer-based private health insurance and did not include a longer post-policy period to adjust for implementation lag. CONCLUSION: Fewer patients received COT after HB21; however, patients who continued to receive COT experienced no significant changes in their regimen. The study did not assess whether COT patients were appropriately tapered or if therapeutic alternatives were initiated for new chronic pain patients. KEY WORDS: Prescription opioids, health policy evaluation, chronic opioid therapy, drug utilization

Opioids: Current Science

Evidence shows that chronic opioid therapy is usually not beneficial; weaning patients off opioids many times results in less pain and better function, and opioid-induced hyperalgesia is real and frequent. Further evidence suggests that surgical outcomes are better if patients are weaned off opioids before surgery, and that the chronic use of opioids may adversely alter the assessment of maximum medical improvement (MMI).

Predictors of chronic opioid therapy in Medicaid beneficiaries with HIV who initiated antiretroviral therapy

The factors associated with chronic opioid therapy (COT) in patients with HIV is understudied. Using Medicaid data (2002–2009), this retrospective cohort study examines COT in beneficiaries with HIV who initiated standard combination anti-retroviral therapy (cART). We used generalized estimating equations on logistic regression models with backward selection to identify significant predictors of COT initiation. COT was initiated among 1014 out of 9615 beneficiaries with HIV (male: 10.4%; female: 10.7%). Those with older age, any malignancy, Hepatitis C infection, back pain, arthritis, neuropathy pain, substance use disorder, polypharmacy, (use of) benzodiazepines, gabapentinoids, antidepressants, and prior opioid therapies were positively associated with COT. In sex-stratified analyses, multiple predictors were shared between male and female beneficiaries; however, chronic obstructive pulmonary disease, liver disease, any malignancy, and antipsychotic therapy were unique to female beneficiaries. Comorbidities and polypharmacy were important predictors of COT in Medicaid beneficiaries with HIV who initiated cART.

Predictors of Chronic Opioid Use: A Population-level Analysis of North Carolina Cancer Survivors Using Multi-Payer Claims

Background No population-based studies have examined chronic opioid use among cancer survivors who are diverse with respect to diagnosis, age group, and insurance status. Methods We conducted a retrospective cohort study using North Carolina (NC) cancer registry data linked with claims from public and private insurance (2006–2016). We included adults with non-metastatic cancer who had no prior chronic opioid use (N = 38,366). We used modified Poisson regression to assess the adjusted relative risk of chronic opioid use in survivorship (>90-day continuous supply of opioids in the 13–24 months following diagnosis) associated with patient characteristics. Results Only 3.0% of cancer survivors in our cohort used opioids chronically in survivorship. Predictors included younger age (adjusted risk ratio [aRR], 50–59 vs 60–69 = 1.23, 95% confidence interval [CI] = 1.05–1.43), baseline depression (aRR = 1.22, 95% CI = 1.06–1.41) or substance use (aRR = 1.43, 95% CI = 1.15–1.78) and Medicaid (aRR vs Private = 1.93, 95% CI = 1.56–2.40). Survivors who used opioids intermittently (vs not at all) before diagnosis were twice as likely to use opioids chronically in early survivorship (aRR = 2.62, 95% CI = 2.28–3.02). Those who used opioids chronically (vs intermittently or not at all) during active treatment had a nearly 17-fold increased likelihood of chronic use in survivorship (aRR = 16.65, 95 CI = 14.30–19.40). Conclusions Younger and low-income survivors, those with baseline depression or substance use, and those who require chronic opioid therapy during treatment are at increased risk for chronic opioid use in survivorship. Our findings point to opportunities improve assessment of psychosocial histories and to engage patients in shared decision-making around long-term pain management, when chronic opioid therapy is required during treatment.

Emergency Department Utilization Among People Living With HIV on Chronic Opioid Therapy

Chronic pain among people with HIV (PWH) is a driving factor of emergency department (ED) utilization, and it is often treated with chronic opioid therapy (COT). We conducted a cross-sectional analysis of a prospective observational cohort of PWH on COT at 2 hospital-based clinics to determine whether COT-specific factors are associated with ED utilization among PWH. The primary outcome was an ED visit within 12 months after study enrollment. We used stepwise logistic regression including age, gender, opioid duration, hepatitis C, depression, prior ED visits, and Charlson comorbidity index. Of 153 study participants, n = 69 (45%) had an ED visit; 25% of ED visits were pain-related. High dose opioids, benzodiazepine co-prescribing, and lack of opioid treatment agreements were not associated with ED utilization, but prior ED visits (p = 0.002), depression (p = 0.001) and higher Charlson comorbidity score (p = 0.003) were associated with ED utilization. COT-specific factors were not associated with increased ED utilization among PWH.