• Curr Med Res Opin · Dec 2012

    Review

    A review of intranasal ketorolac tromethamine for the short-term management of moderate to moderately severe pain that requires analgesia at the opioid level.

    • Andy He and Elliot V Hersh.
    • College of Pharmacy and Health Sciences, St. John's University, Queens, NY 11439, USA. hea@stjohns.edu
    • Curr Med Res Opin. 2012 Dec 1; 28 (12): 1873-80.

    BackgroundAn intranasal (IN) formulation of ketorolac was recently FDA approved in adult patients for the short-term management of moderate to moderately severe pain that requires analgesia at the opioid level.ScopeThe aim of this paper is to provide an overview of the clinical pharmacology, pharmacokinetics, efficacy, and tolerability of IN ketorolac. Databases used for this literature search include PubMed, International Pharmaceutical Abstracts, Cochrane Library and ClinicalTrials.gov from January 1980 to January 2012. All primary papers on IN ketorolac were eligible, including pharmacologic, pharmacokinetic, clinical, outcomes, and meta-analyses. The approved product labeling was a source of information, as well as the bibliographies of published articles which were reviewed for additional pertinent literature.FindingsThe search yielded six relevant studies all of which were selected for this review and included efficacy and safety trials, one pharmacokinetics study, and one preclinical study. IN ketorolac is a non-steroidal inflammatory drug that exhibits its effect mainly by inhibiting cyclo-oxygenase (COX) 1 and 2 with high affinity for COX-1. Absorption of IN ketorolac displays a median t(max) of 0.50-0.75 hours and has a t(½) of approximately 5-6 hours. Primary analyses included evaluation of morphine use and summed pain intensity difference (SPID) which was assessed using a visual analog scale. In one of the two phase III studies, the mean SPID6 score was 83.3 in the IN ketorolac group versus 37.2 in the placebo group, p = 0.007. In another phase III study, the mean SPID6 score was 117.4 in the IN ketorolac group versus 89.9 in the placebo group, p = 0.032. IN ketorolac was well-tolerated with most adverse events associated with the route of administration.ConclusionBased on the clinical trials reviewed, IN ketorolac was associated with significant pain reduction in patients with various post-operative procedures, with good tolerability.

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