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A Phase II Pilot Study to Evaluate Use of Intravenous Lidocaine for Opioid-Refractory Pain in Cancer Patients

Publication Type : Journal Article

Thematic Areas : Medical Sciences

Publisher : Journal of Pain and Symptom Management

Source : Journal of Pain and Symptom Management, Volume 37, Number 1, p.85-93 (2009)

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Keywords : 80 and over, adult, aged, analgesia, Analgesics, Anesthetics, article, bradycardia, cancer pain, circumoral paresthesia, clinical article, Clinical trial, controlled clinical trial, controlled study, Cross-Over Studies, crossover procedure, diastolic blood pressure, dizziness, double blind procedure, Double-Blind Method, drug infusion, drug tolerability, drug withdrawal, female, headache, heart arrhythmia, human, Humans, Injections, Intravenous, lidocaine, Local, male, middle aged, Neoplasms, Opioid, pain, Pain Measurement, paresthesia, phase 2 clinical trial, Pilot Projects, Placebo Effect, randomized controlled trial, sedation, side effect, systolic blood pressure, treatment duration, treatment failure, treatment outcome

Campus : Kochi

School : School of Medicine

Department : Department of Pain and Palliative

Year : 2009

Abstract : Opioid-refractory pain is distressing because it is notoriously difficult to treat. Relief from adjuvant therapies often occurs after a lag time. Retrospective evidence points to a role for intravenous (IV) lidocaine in this setting for pain relief. This study was planned as a randomized, double-blind, placebo-controlled, crossover study in which eligible patients received both lidocaine and placebo infusions separated by two weeks. Primary endpoints were magnitude and duration of pain relief. Fifty patients were included in the study. Pain relief was significantly better (P 0.001) and more patients reported a decrease in analgesic requirements (P = 0.0012) after lidocaine infusion than after placebo. Onset of analgesia was noted at a mean of 40 ± 16.28 minutes after initiation of infusion of IV lidocaine. Mean duration of this analgesia, 9.34 ± 2.58 days after the single infusion, was significantly longer than that for placebo (P 0.01). Side effects observed were tinnitus, perioral numbness, sedation, light-headedness, and headache. All side effects were self-limited and did not require any intervention except termination of lidocaine infusion in one case. These data demonstrate that a single IV infusion of lidocaine provided a significantly greater magnitude and duration of pain relief than placebo infusion in opioid-refractory patients with cancer pain. Side effects were tolerable. It is thus a promising modality worth investigating further to establish guidelines for its use in cancer patients with opioid-refractory pain. © 2009 U.S. Cancer Pain Relief Committee.

Cite this Research Publication : S. Sharma, Rajagopal, M. R., Palat, G., Singh, C., Haji, A. G., and Jain, D., “A Phase II Pilot Study to Evaluate Use of Intravenous Lidocaine for Opioid-Refractory Pain in Cancer Patients”, Journal of Pain and Symptom Management, vol. 37, pp. 85-93, 2009.

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