Prucalopride
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Trade names | Resolor, Resotran |
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Routes of administration | Oral |
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Formula | C18H26ClN3O3 |
Molar mass | 367.870 g/mol g·mol−1 |
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Prucalopride, brand name Resolor among others, is a drug acting as a selective, high affinity 5-HT4 receptor agonist[1] which targets the impaired motility associated with chronic constipation, thus normalizing bowel movements.[2][3][4][5][6][7] Prucalopride was approved for use in Europe in 2009,[8] in Canada in 2011[9] and in Israel in 2014[10] but it has not been approved by the Food and Drug Administration for use in the United States. The drug has also been tested for the treatment of chronic intestinal pseudo-obstruction.[11][12]
Medical uses
The primary measure of efficacy in the clinical trials is three or more spontaneous complete bowel movements per week; a secondary measure is an increase of at least one complete spontaneous bowel movement per week.[7][13][14] Further measures are improvements in PAC-QOL[15] (a quality of life measure) and PAC-SYM[16] (a range of stool, abdominal, and rectal symptoms associated with chronic constipation). Infrequent bowel movements, bloating, straining, abdominal pain, and defecation urge with inability to evacuate can be severe symptoms, significantly affecting quality of life.[17][18][19][20][21]
In three large clinical trials, 12 weeks of treatment with prucalopride 2 and 4 mg/day resulted in a significantly higher proportion of patients reaching the primary efficacy endpoint of an average of ≥3 spontaneous complete bowel movements than with placebo.[7][13][14] There was also significantly improved bowel habit and associated symptoms, patient satisfaction with bowel habit and treatment, and HR-QOL in patients with severe chronic constipation, including those who did not experience adequate relief with prior therapies (>80% of the trial participants).[7][13][14] The improvement in patient satisfaction with bowel habit and treatment was maintained during treatment for up to 24 months; prucalopride therapy was generally well tolerated.[22][23]
Contraindications
Prucalopride is contraindicated where there is hypersensitivity to the active substance or to any of the excipients, renal impairment requiring dialysis, intestinal perforation or obstruction due to structural or functional disorder of the gut wall, obstructive ileus, severe inflammatory conditions of the intestinal tract, such as Crohn's disease, and ulcerative colitis and toxic megacolon/megarectum.[24]
Side effects
Prucalopride has been given orally to ~2700 patients with chronic constipation in controlled clinical trials. The most frequently reported side effects are headache and gastrointestinal symptoms (abdominal pain, nausea or diarrhea). Such reactions occur predominantly at the start of therapy and usually disappear within a few days with continued treatment.[24]
Mechanism of action
Prucalopride, a first in class dihydro-benzofuran-carboxamide, is a selective, high affinity serotonin (5-HT4) receptor agonist with enterokinetic activities.[24] Prucalopride alters colonic motility patterns via serotonin 5-HT4 receptor stimulation: it stimulates colonic mass movements, which provide the main propulsive force for defecation.
The observed effects are exerted via highly selective action on 5-HT4 receptors:[24] prucalopride has >150-fold higher affinity for 5-HT4 receptors than for other receptors.[1][25] Prucalopride differs from other 5-HT4 agonists such as tegaserod and cisapride, which at therapeutic concentrations also interact with other receptors (5-HT1B/D and the cardiac human ether-a-go-go K+ or hERG channel respectively) and this may account for the adverse cardiovascular events that have resulted in the restricted availability of these drugs.[25] Clinical trials evaluating the effect of prucalopride on QT interval and related adverse events have not demonstrated significant differences compared with placebo.[24]
Pharmacokinetics
Prucalopride is rapidly absorbed (Cmax attained 2–3 hours after single 2 mg oral dose) and is extensively distributed. Metabolism is not the major route of elimination. In vitro, human liver metabolism is very slow and only minor amounts of metabolites are found. A large fraction of the active substance is excreted unchanged (about 60% of the administered dose in urine and at least 6% in feces). Renal excretion of unchanged prucalopride involves both passive filtration and active secretion. Plasma clearance averages 317 ml/min, terminal half-life is 24–30 hours,[26] and steady-state is reached within 3–4 days. On once daily treatment with 2 mg prucalopride, steady-state plasma concentrations fluctuate between trough and peak values of 2.5 and 7 ng/ml, respectively.[24]
In vitro data indicate that prucalopride has a low interaction potential, and therapeutic concentrations of prucalopride are not expected to affect the CYP-mediated metabolism of co-medicated medicinal products.[24]
Approval
In the European Economic Area, prucalopride was originally approved for the symptomatic treatment of chronic constipation in women in whom laxatives fail to provide adequate relief.[24] Subsequently, it has been approved by the European Commission for use in adults – that is, including male patients – for the same indication.[27]
References
- ^ a b Briejer, M. R.; Bosmans, J. P.; Van Daele, P.; Jurzak, M.; Heylen, L.; Leysen, J. E.; Prins, N. H.; Schuurkes, J. A. (2001). "The in vitro pharmacological profile of prucalopride, a novel enterokinetic compound". European Journal of Pharmacology. 423 (1): 71–83. doi:10.1016/S0014-2999(01)01087-1. PMID 11438309.
- ^ Clinical trial number [1] for "NCT00793247" at ClinicalTrials.gov
- ^ Emmanuel, A. V.; Kamm, M. A.; Roy, A. J.; Kerstens, R.; Vandeplassche, L. (2012). "Randomised clinical trial: The efficacy of prucalopride in patients with chronic intestinal pseudo-obstruction - a double-blind, placebo-controlled, cross-over, multiple n = 1 study". Alimentary Pharmacology & Therapeutics. 35 (1): 48–55. doi:10.1111/j.1365-2036.2011.04907.x. PMC 3298655. PMID 22061077.
- ^ Smart, C. J.; Ramesh, A. N. (2011). "The successful treatment of acute refractory pseudo-obstruction with Prucalopride". Colorectal Disease. 14 (8): e508. doi:10.1111/j.1463-1318.2011.02929.x. PMID 22212130.
- ^ Bouras, E. P.; Camilleri, M.; Burton, D. D.; McKinzie, S. (1999). "Selective stimulation of colonic transit by the benzofuran 5HT4 agonist, prucalopride, in healthy humans". Gut. 44 (5): 682–686. doi:10.1136/gut.44.5.682. PMC 1727485. PMID 10205205.
- ^ Bouras, E. P.; Camilleri, M.; Burton, D. D.; Thomforde, G.; McKinzie, S.; Zinsmeister, A. R. (2001). "Prucalopride accelerates gastrointestinal and colonic transit in patients with constipation without a rectal evacuation disorder". Gastroenterology. 120 (2): 354–360. doi:10.1053/gast.2001.21166. PMID 11159875.
- ^ a b c d Tack, J.; Van Outryve, M.; Beyens, G.; Kerstens, R.; Vandeplassche, L. (2008). "Prucalopride (Resolor) in the treatment of severe chronic constipation in patients dissatisfied with laxatives". Gut. 58 (3): 357–365. doi:10.1136/gut.2008.162404. PMID 18987031.
- ^ European Medicines Agency -EPAR Archived 2010-01-31 at the Wayback Machine
- ^ "Health Canada, Notice of Decision for Resotran". hc-sc.gc.ca. Archived from the original on 18 March 2017. Retrieved 1 May 2018.
{{cite web}}
: Unknown parameter|deadurl=
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suggested) (help) - ^ "Digestive Remedies in Israel". www.euromonitor.com. Archived from the original on 13 March 2018. Retrieved 1 May 2018.
{{cite web}}
: Unknown parameter|deadurl=
ignored (|url-status=
suggested) (help) - ^ Briejer, M. R.; Prins, N. H.; Schuurkes, J. A. (2001). "Effects of the enterokinetic prucalopride (R093877) on colonic motility in fasted dogs". Neurogastroenterology and Motility : The Official Journal of the European Gastrointestinal Motility Society. 13 (5): 465–472. doi:10.1046/j.1365-2982.2001.00280.x. PMID 11696108.
- ^ Oustamanolakis, P.; Tack, J. (2012). "Prucalopride for chronic intestinal pseudo-obstruction". Alimentary Pharmacology & Therapeutics. 35 (3): 398–9. doi:10.1111/j.1365-2036.2011.04947.x. PMID 22221087.
- ^ a b c Camilleri, M.; Kerstens, R.; Rykx, A.; Vandeplassche, L. (2008). "A Placebo-Controlled Trial of Prucalopride for Severe Chronic Constipation". New England Journal of Medicine. 358 (22): 2344–2354. doi:10.1056/NEJMoa0800670. PMID 18509121.
- ^ a b c Quigley, E. M. M.; Vandeplassche, L.; Kerstens, R.; Ausma, J. (2009). "Clinical trial: the efficacy, impact on quality of life, and safety and tolerability of prucalopride in severe chronic constipation – a 12-week, randomized, double-blind, placebo-controlled study". Alimentary Pharmacology & Therapeutics. 29 (3): 315–328. doi:10.1111/j.1365-2036.2008.03884.x. PMID 19035970.
- ^ Marquis, P.; De La Loge, C.; Dubois, D.; McDermott, A.; Chassany, O. (2005). "Development and validation of the Patient Assessment of Constipation Quality of Life questionnaire". Scandinavian Journal of Gastroenterology. 40 (5): 540–551. doi:10.1080/00365520510012208. PMID 16036506.
- ^ Frank, L.; Kleinman, L.; Farup, C.; Taylor, L.; Miner Jr, P. (1999). "Psychometric validation of a constipation symptom assessment questionnaire". Scandinavian Journal of Gastroenterology. 34 (9): 870–877. doi:10.1080/003655299750025327. PMID 10522604.
- ^ Johanson, JF; Kralstein, J (2007). "Chronic constipation: a survey of the patient perspective". Alimentary Pharmacology & Therapeutics. 25 (5): 599–608. doi:10.1111/j.1365-2036.2006.03238.x. PMID 17305761.
- ^ Koch, A.; Voderholzer, W. A.; Klauser, A. G.; Müller-Lissner, S. (1997). "Symptoms in chronic constipation". Diseases of the Colon and Rectum. 40 (8): 902–906. doi:10.1007/BF02051196. PMID 9269805.
- ^ McCrea, G. L.; Miaskowski, C.; Stotts, N. A.; MacEra, L.; Paul, S. M.; Varma, M. G. (2009). "Gender differences in self-reported constipation characteristics, symptoms, and bowel and dietary habits among patients attending a specialty clinic for constipation". Gender Medicine. 6 (1): 259–271. doi:10.1016/j.genm.2009.04.007. PMID 19467522.
- ^ Pare, P.; Ferrazzi, S.; Thompson, W. G.; Irvine, E. J.; Rance, L. (2001). "An epidemiological survey of constipation in Canada: definitions, rates, demographics, and predictors of health care seeking". The American Journal of Gastroenterology. 96 (11): 3130–3137. doi:10.1111/j.1572-0241.2001.05259.x. PMID 11721760.
- ^ Wald, A.; Scarpignato, C.; Kamm, M. A.; Mueller-Lissner, S.; Helfrich, I.; Schuijt, C.; Bubeck, J.; Limoni, C.; Petrini, O. (2007). "The burden of constipation on quality of life: results of a multinational survey". Alimentary Pharmacology & Therapeutics. 26 (2): 227–236. doi:10.1111/j.1365-2036.2007.03376.x. PMID 17593068.
- ^ Camilleri, M; Beyens, G; Kerstens, R; Vandeplassche, L (2009). "Long-term follow-up of safety and satisfaction with bowel function in response to oral prucalopride in patients with chronic constipation [Abstract]". Gastroenterology. 136 (Suppl 1): 160. doi:10.1016/s0016-5085(09)60143-8.
- ^ Van Outryve, MJ; Beyens, G; Kerstens, R; Vandeplassche, L (2008). "Long-term follow-up study of oral prucalopride (Resolor) administered to patients with chronic constipation [Abstract T1400]". Gastroenterology. 134 (4 (suppl 1)): A547. doi:10.1016/s0016-5085(08)62554-8.
- ^ a b c d e f g h SmPC. Summary of product characteristics Resolor (prucalopride) October, 2009: 1-9.
- ^ a b De Maeyer, JH; Lefebvre, RA; Schuurkes, JA (Feb 2008). "5-HT(4) receptor agonists: similar but not the same". Neurogastroenterol Motil. 20 (2): 99–112. doi:10.1111/j.1365-2982.2007.01059.x. PMID 18199093.
- ^ Frampton, J. E. (2009). "Prucalopride". Drugs. 69 (17): 2463–2476. doi:10.2165/11204000-000000000-00000. PMID 19911858.
- ^ "Shire Receives European Approval to Use Resolor® (prucalopride) in Men for the Symptomatic Treatment of Chronic Constipation". www.shire.com. Archived from the original on 21 November 2017. Retrieved 1 May 2018.
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