Does pain intensity predict a poor opioid response in cancer patients?
Abstract Aim The aim of this study was to test the hypothesis that initial pain intensity is not a predictive factor of poor opioid response in advanced cancer patients, as suggested by a recent work. Methods A secondary analysis of one-hundred-sixty-seven patients referred for treatment of cancer-related pain was conducted. Pain intensity at admission was recorded and patients were divided in three categories of pain intensity: mild, moderate and severe. Patients were offered a treatment with opioid dose titration, according to department policy. Data regarding opioid doses and pain intensity were collected after dose titration was completed. Four levels of opioid response were considered:…
Low morphine doses in opioid-naive cancer patients with pain
Cancer pain can be managed in most patients through the use of the analgesic ladder proposed by the World Health Organization. Recent studies have proposed to skip the second "rung" of the ladder by using a so-called "strong" opioid for moderate pain. However, usual doses of strong opioids commonly prescribed for the third rung of the analgesic ladder may pose several problems in terms of tolerability in opioid-naive patients. The aim of this multicenter study was to evaluate the efficacy and tolerability of very low doses of morphine in advanced cancer patients no longer responsive to nonopioid analgesics. A sample of 110 consecutive opioid-naive patients with moderate-to-severe pain were …
Palliative Care in Advanced Cancer Patients: How and When? And Where?
Eduardo Bruera et al. [1] recently published an exhaustive paper in which they underscore the importance of the integration between oncology and palliative care, suggesting how and when to provide palliative care in advanced cancer patients. We agree that this integrative model allows prompt evaluation and treatment of symptoms, a reduction in costs resulting from inappropriate hospitalization, and better survival outcomes. In their conclusion, Bruera et al. [1] affirm that the two most important resources for palliative care delivery are outpatient palliative care centers and inpatient palliative care units. Although we are on the same wavelength as Bruera et al. [1], we would like to poin…
Pattern of symptoms and symptomatic treatment in adults and the aged population: a retrospective analysis of advanced cancer patients followed at home.
Context Data regarding symptom burden and symptomatic drugs in palliative population in different classes of age are lacking. Objective The aim of this retrospective study was to assess the symptom burden, and the profile of symptomatic drugs in the last four weeks of life in adults and older cancer patients followed at home. Methods Charts of 412 patients were retrospectively analyzed by using a backward analysis. Patients were divided into three groups: adults (<65 years, A), old (65-74 years, O1), very old (75-84 years, O2), and the oldest (≥85 years, O3). Results At -4W Karnofsky status was significantly lower for older people (p = 0.03). No significant effect of age on the vector of sy…
Low doses of transdermal buprenorphine in opioid-naive patients with cancer pain: A 4-week, nonrandomized, open-label, uncontrolled observational study
OBJECTIVE: The aim of this study was to evaluate the effect and tolerability of low doses of transdermal (TD) buprenorphine patches in opioid-naive patients with cancer pain. METHODS: This was a nonrandomized, open-label, uncontrolled study in consecutive opioid-naive patients with advanced cancer and moderate pain. TD buprenorphine was initiated at a dose of 17.5 microg/h (0.4 mg/d), with patch changes every 3 days. Doses were then adjusted according to the clinical response. Pain intensity, opioid-related adverse effects, TD buprenorphine doses, and quality of life were monitored over 4 weeks. The time to dose stabilization and indexes of dose escalation were also calculated. RESULTS: Thi…
Sustained-release oral morphine versus transdermal fentanyl and oral methadone in cancer pain management.
The aim of this study was to compare the analgesic and adverse effects, doses, as well as cost of opioid drugs, supportive drug therapy and other analgesic drugs in patients treated with oral sustained-release morphine, transdermal fentanyl, and oral methadone.One hundred and eight cancer patients, no longer responsive to opioids for moderate pain, were selected to randomly receive initial daily doses of 60 mg of oral sustained-release morphine, 15 mg of oral methadone, or 0.6 mg (25 microg/h) of transdermal fentanyl. Oral morphine was used as breakthrough pain medication during opioid titration. Opioid doses, pain intensity, adverse effects, symptomatic drugs, were recorded at week interva…
Safety and effectiveness of intravenous morphine for episodic breakthrough pain in patients receiving transdermal buprenorphine.
Supplemental dosing of an opioid is the main treatment suggested to manage breakthrough pain in cancer patients. The intravenous route has been proven to be safe and effective, providing rapid analgesia in patients receiving oral morphine. Transdermal buprenorphine (TTS-BUP) is increasingly used in cancer pain management, but this drug has been labeled as a difficult drug to use in combination with other opioids. The aim of this open-label study was to verify the safety and effectiveness of intravenous morphine (IV-MO) for the treatment of episodic pain in cancer patients receiving TTS-BUP. A consecutive sample of 29 cancer patients, who were treated with TTS-BUP, reported an acceptable bas…
Switching from Transdermal Drugs: An Observational "N of 1" Study of Fentanyl and Buprenorphine
The aim of this study was to confirm that the concomitant presence of transdermal fentanyl (TTS FE) and buprenorphine (TTS BU) may be feasible without important consequences, using doses presumed to be equianalgesic. A prospective "N of 1" study was carried out in a sample of volunteers with cancer pain receiving stable doses of TTS FE or TTS BU, with adequate pain and symptom control. In the study design, each patient provided data before and after a switch from one opioid to the other and then back to the previous one. Sixteen patients receiving daily stable doses of 0.6 or 1.2 mg of TTS FE were switched to TTS BU using an FE-BU ratio of 0.6-0.8. After three days, the TTS BU patch was rem…
Opioid switching from and to tapentadol extended release in cancer patients: conversion ratio with other opioids
Objectives: The aim of this exploratory study was to assess the conversion ratios between tapentadol and other opioids in patients requiring an opioid switching. Methods: A prospective study was carried out in a convenience sample of consecutive patients admitted to an acute palliative care unit and a home care unit for a period of 1 year. Patients who were switched from/to tapentadol were selected. The initial ratio between tapentadol and other opioids, expressed as oral morphine equivalents was 1:3.3. The subsequent doses were flexible and were changed to fit the patients’ needs. Pain intensity and distress score were recorded until opioid doses were stable. In all, 37 patients were exami…
Tools for identifying cancer pain of predominantly neuropathic origin and opioid responsiveness in cancer patients.
Neuropathic pain (NP) is a difficult issue, particularly in cancer which is a dynamic condition where multiple pain etiologies are concomitantly present. Cancer pain is often labeled as mixed mechanism pain and is not easily classified as exclusively nociceptive or NP. The aim of this study was to explore the value of evaluation tools such as Neuropathic Pain Questionnaire (NPQ), complete and short form (NPQ-SF), Leeds Assessment of Neuropathic Signs and Symptoms (LANSS) and Neuropathic Pain Symptom Inventory (NPSI). The secondary outcome was to evaluate the response to opioid titration, according to the hierarchical classification of definite, possible and unlikely NP. A consecutive sample…