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  • Title: CCK-1 receptor blockade for treatment of biliary colic: a pilot study.
    Author: Malesci A, Pezzilli R, D'Amato M, Rovati L.
    Journal: Aliment Pharmacol Ther; 2003 Aug 01; 18(3):333-7. PubMed ID: 12895218.
    Abstract:
    BACKGROUND: Loxiglumide is a potent and selective cholecystokinin-1 (CCK-1) receptor antagonist able to inhibit gall-bladder contraction. AIM: To assess the effect of CCK-1 receptor blockade on the pain of patients with biliary colic. PATIENTS AND METHODS: Fourteen patients with biliary colic but no suspicion for acute cholecystitis, were randomly and blindly assigned to loxiglumide (50 mg i.v.) or hyoscine-N-butyl bromide (20 mg i.v.) treatment. Pain intensity was monitored by a Visual Analogue Scale. Patients with less than 80% response at 30 min, were retreated with a second injection of the same compound. RESULTS: Reduction in pain score (mean +/- S.E.M.) was faster and significantly greater in patients treated with loxiglumide (n = 7) than in controls (n = 7): 88 +/- 7% vs. 47 +/- 12% after 20 min, P < 0.05; 92 +/- 6% vs. 49 +/- 13%, after 30 min, P < 0.05. Only one of seven patients treated with loxiglumide needed a second injection at 30 min (vs. six of seven controls, P < 0.05). No adverse effect was observed after either treatment. CONCLUSIONS: Loxiglumide is highly effective in obtaining pain relief in patients with biliary colic. The analgesic effect of CCK-1 receptor blockade is superior to that of a conventional anticholinergic treatment.
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