Deficiencies with CAGE-AID questionnaire in identifying nonmedical opioid use-a report of two cases.

BACKGROUND: The CAGE-AID questionnaire (Cut-down, Annoyed, Guilty, Eye-opener scale Adapted to Include Drugs) is used to screen patients for substance use disorder and nonmedical opioid use (NMOU). Major pain guidelines encourage using such screening tools for all patients including cancer patients before initiating opioids. We present two cases where the CAGE-AID results did not accurately identify the risk for NMOU. CASE DESCRIPTION: Patient 1 is a male in his 60s with metastatic prostate cancer was admitted for uncontrolled pain. Imaging revealed extensive spinal metastasis, needing initiation of methadone and hydromorphone. The CAGE-AID score was positive, placing him at risk for NMOU. This likely biased the providers, delaying opioid titration. Subsequently, doses were adjusted, and he was discharged with adequate pain control and no evidence of NMOU. Patient 2 is a male in his 40s with metastatic cholangiocarcinoma admitted for uncontrolled abdominal pain. The patient had multiple hospitalizations at different facilities with similar symptoms. The CAGE-AID score was negative. Despite this, the patient demonstrated behaviors such as demanding intravenous opioids, dose escalation, or interventions such as nerve blocks. The workup did not identify any etiology for the increased pain. The patient left the hospital against medical advice when his demands for intravenous opioids were not met. CONCLUSIONS: The CAGE-AID questionnaire alone does not accurately identify risks for NMOU. Screening tools must always be accompanied by a thorough clinical assessment of behaviors and pain mechanism. More research is needed to better characterize CAGE-AID false positives and negatives among patients with cancer pain.

Efforts to Improve Naloxone Co-Prescription for Patients With Cancer Pain at Risk of Opioid Overdose.

Importance: Naloxone can be lifesaving in an opioid-related overdose (OD). However, the co-prescription of take-home naloxone (THN) is not widely adopted in routine clinical practice. We implemented a pilot program focused on increasing clinicians' awareness of THN and observed if this impacts THN prescriptions for our patients with cancer pain receiving opioids. Intervention: In January 2020, we initiated an educational program by twice-weekly video presentations and installed pamphlets in all clinic workstations highlighting the risk factors for ODs. We retrospectively reviewed electronic health records (EHR) of randomly selected patient visits, 200 each from eight weeks before intervention (BI) and eight weeks after the intervention (AI). Data on patient characteristics, risk factors for ODs, and THN prescriptions were collected. Results: In all, 380 unique patients were eligible for analysis. The median age was 60, 53% female, and 70% Caucasian. Eighty-two percent (152) BI and 73% (142) AI carried risk factors for ODs (p = 0.13). THN was prescribed to 21% (32/152) BI and 26% (37/142) AI (p = 0.53). Morphine-equivalent daily dose (MEDD) ≥100 mg (30%) and pulmonary disease (25%) were the most prevalent risk factors. The patient's likelihood of receiving a THN prescription increased by 0.9% for every 1-milligram increase in MEDD (p < 0.001, 95% confidence interval: 1.006-1.011). Conclusion: The educational intervention did not significantly increase the frequency of THN prescriptions. More direct interventions, including automatic EHR triggers, may need to be tested in future trials.

Levorphanol as a Second Line Opioid in Cancer Patients Presenting to an Outpatient Supportive Care Center: An Open-label Study.

CONTEXT: Levorphanol is a potent opioid agonist and NMDA receptor blocker with minimal drug interactions, and there are few reports of its use in cancer patients. OBJECTIVES: We aimed to determine the frequency of successful opioid rotation (OR) to levorphanol and the median opioid rotation ratio (ORR) from Morphine Equivalent Daily Dose (MEDD). METHODS: This is a prospective, single-group, interventional study. Cancer outpatients requiring an OR and receiving a MEDD of 60-300 mg were rotated to levorphanol using a ratio of 10:1 and assessed daily for 10-day. Successful OR was defined as a 2-point improvement in the Edmonton Symptom Assessment System (ESAS) pain score on day 10 or achieving the personalized pain goal between days 3-10 in patients with uncontrolled pain or resolution of opioid side effects (OSE) in those undergoing OR for OSE alone. The ORR to levorphanol was calculated using net-MEDD (MEDD before OR minus the MEDD of the breakthrough opioid used along with levorphanol after OR). RESULTS: Forty patients underwent OR to levorphanol, and uncontrolled pain 35/40 (87.5%) was the most common indication. The median net-MEDD and levorphanol doses were 95 and 10 mg, respectively, and 33/40 (82.5%) had a successful OR with a median (IQR) ORR of 8.56 (7.5-10). Successful OR was associated with significant improvement in ESAS and OSE scale scores. There was a strong association between MEDD and levorphanol dose. CONCLUSION: This study provided preliminary data that cancer patients could be successfully rotated to levorphanol using an ORR of 8.5. Levorphanol was associated with improved pain and symptom control and was well- tolerated.

Levorphanol for Treatment of Intractable Neuropathic Pain in Cancer Patients.

Neuropathic pain in cancer patients is often difficult to treat, requiring a combination of several different pharmacological therapies. We describe two patients with complex neuropathic pain syndromes in the form of phantom limb pain and Brown-Sequard syndrome who did not respond to conventional treatments but responded dramatically to the addition of levorphanol. Levorphanol is a synthetic strong opioid that is a potent N-methyl-d-aspartate receptor antagonist, mu, kappa, and delta opioid receptor agonist, and reuptake inhibitor of serotonin and norepinephrine. It bypasses hepatic first-pass metabolism and thereby not subjected to numerous drug interactions. Levorphanol's unique profile makes it a potentially attractive opioid in cancer pain management.