Articles: analgesics.
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Br J Clin Pharmacol · Jun 2002
Randomized Controlled Trial Multicenter Study Clinical TrialAnalgesic efficacy of sustained release paracetamol in patients with osteoarthritis of the knee.
Paracetamol is widely recommended as the initial treatment for pain associated with osteoarthritis (OA). A sustained release (SR) paracetamol formulation (Panadol Extend) was compared with standard immediate release (IR) paracetamol (Panadol) in patients with knee pain secondary to OA. The primary parameter for assessment of efficacy was patient-assessed global pain relief as determined on day 8 of the treatment period. ⋯ SR paracetamol taken three times daily was statistically and therapeutically noninferior to IR paracetamol taken four times daily in patients with knee pain due to OA. SR paracetamol may be more convenient for patients with chronic pain and has the potential to enhance compliance and therefore pain relief.
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J Pain Symptom Manage · May 2002
Multicenter Study Clinical TrialDose conversion and titration with a novel, once-daily, OROS osmotic technology, extended-release hydromorphone formulation in the treatment of chronic malignant or nonmalignant pain.
The objective of this open-label, repeated-dose, single-treatment, multicenter study was to evaluate the outcomes associated with a standardized conversion from prior opioid therapy to a novel, once-daily, OROS osmotic technology, extended-release (ER) hydromorphone formulation in an outpatient population with chronic malignant or nonmalignant pain. The study period was divided into 3 phases: the prior opioid stabilization phase (> or =3 days), the conversion and titration phase (3-21 days), and the maintenance phase (14 days). Patients were evaluated at 5 visits during the study period. ⋯ Adverse events were consistent with those expected of an opioid agonist in such a patient group, affecting primarily the gastrointestinal and central nervous systems. This uncontrolled study delineates a regimen by which patients with chronic malignant or nonmalignant pain can be readily converted from prior opioid therapy and titrated to an appropriate maintenance dose of ER hydromorphone. Controlled longitudinal studies are required to further evaluate the use of ER hydromorphone in patients with discrete chronic malignant or nonmalignant pain conditions.
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Support Care Cancer · Apr 2002
Randomized Controlled Trial Multicenter Study Clinical TrialA double-blind, randomised, parallel group, multinational, multicentre study comparing a single dose of ondansetron 24 mg p.o. with placebo and metoclopramide 10 mg t.d.s. p.o. in the treatment of opioid-induced nausea and emesis in cancer patients.
Nausea and emesis are common side effects of opioid drugs administered for pain relief in cancer patients. The aim of this study was to compare the anti-emetic efficacy and safety of ondansetron, placebo and metoclopramide in the treatment of opioid-induced nausea and emesis (OIE) in cancer patients. This was a multinational, multicentre, double-blind, parallel group study in which cancer patients who were receiving a full opioid agonist for cancer pain were randomised to receive one of oral ondansetron 24 mg once daily, metoclopramide 10 mg three times daily, or placebo. ⋯ Rescue anti-emetics were required in 8 of 33 patients on metoclopramide, 4 of 29 on ondansetron, and 3 of 30 on placebo. The incidence of adverse events was very low and similar in all treatment groups. Neither ondansetron 24 mg once daily nor metoclopromide 10 mg t.d.s. given orally was significantly more effective than placebo in the control of OIE in cancer patients.
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Multicenter Study Comparative Study
Comparison of outcome measures during treatment with the proprietary Harpagophytum extract doloteffin in patients with pain in the lower back, knee or hip.
Besides checking estimates of effectiveness and safety of using the proprietary Harpagophytum extract Doloteffin, this postmarketing surveillance compared various disease-specific* and generic** measures of effect. We enrolled 250 patients suffering from nonspecific low back pain (Back group: n = 104) or osteoarthritic pain in the knee (Knee group: n = 85) or hip (Hip group: n = 61). They took an 8-week course of Doloteffin at a dose providing 60 mg harpagoside per day. ⋯ About 10% of the patients suffered from minor adverse events that could possibly have been attributable to Doloteffin. Between 50% and 70% of the patients benefitted from Doloteffin with few adverse effects. Thus, Doloteffin is well worth considering for osteoarthritic knee and hip pain and nonspecific low back pain.
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Randomized Controlled Trial Multicenter Study Clinical Trial
Pain management autobiographies and reluctance to use opioids for cancer pain management.
Although pain management education results in improved pain control for some patients, it does not work for all patients because some patients remain reluctant or unwilling to use prescribed analgesics to their optimal effect. In a randomized clinical trial that tested the effectiveness of the PRO-SELF Pain Control Program, 11 patients declined to increase their analgesic use despite moderate to severe pain. These patients were selected for a qualitative analysis of their audiotaped discussions about pain management with their intervention nurses. ⋯ We termed these explanatory accounts pain management autobiographies because of their narrative character and multilayered, richly detailed quality. Pain management autobiographies included stories about (1) previous experience with chronic pain management, including stigmatizing interactions with clinicians and family members; (2) bad experiences with cancer pain management, including severe constipation; and 3) strongly held conventions about medication use, including the belief that all medications are "toxins" that should be avoided. The study findings suggest that a small subset of patients with cancer pain may need interventions such as individual or family counseling or alternative pain management strategies to augment education about opioids.