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Tras B, Ok M, Parlak TM, Ider M, Yildiz R, Eser Faki H, Ozdemir Kutahya Z, Uney K. Can diarrhea affect the pharmacokinetics of racecadotril in neonatal calves? J Vet Pharmacol Ther 2022; 45:426-431. [PMID: 35706330 DOI: 10.1111/jvp.13078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 04/11/2022] [Accepted: 05/31/2022] [Indexed: 11/30/2022]
Abstract
This study was aimed to determine the pharmacokinetics of antisecretory-acting racecadotril, used in the treatment of diarrhea in humans and dogs, following oral administration in both neonatal calves with healthy and neonatal calves with infectious diarrhea. The study was carried out on a total of 24 Holstein calves (2-20 days), of which 6 were healthy and 18 were infectious diarrhea. Calves with infectious diarrhea were divided into 3 groups according to the infectious agent (Escherichia coli, Cryptosporidium parvum, and rotavirus/coronavirus). Racecadotril was administered orally at 2.5 mg/kg dose to calves. The plasma concentrations of racecadotril and its main active metabolite (thiorphan) were determined using HPLC-UV. The pharmacokinetic parameters were analyzed using the non-compartmental method. In healthy calves, the t1/2ʎz , Cmax , Tmax, and AUC0-12 of racecadotril were determined 4.70 h, 377 ng/ml, 0.75 h, and 1674 h × ng/ml, respectively. In the plasma of calves with infectious diarrhea, racecadotril and thiorphan were only detected at the sampling time from 0.25 to 1.5 h. As in calves with infectious diarrhea, thiorphan in plasma was only detected in healthy calves from 0.25 to 1.5 h. Racecadotril showed a large distribution volume, rapid elimination, and low metabolism to thiorphan in healthy calves.
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Affiliation(s)
- Bunyamin Tras
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, University of Selcuk, Konya, Turkiye
| | - Mahmut Ok
- Department of Internal Medicine, Faculty of Veterinary Medicine, University of Selcuk, Konya, Turkiye
| | - Tugba Melike Parlak
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, University of Selcuk, Konya, Turkiye
| | - Merve Ider
- Department of Internal Medicine, Faculty of Veterinary Medicine, University of Selcuk, Konya, Turkiye
| | - Ramazan Yildiz
- Department of Internal Medicine, Faculty of Veterinary Medicine, University of Mehmet Akif Ersoy, Burdur, Turkiye
| | - Hatice Eser Faki
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, University of Selcuk, Konya, Turkiye
| | - Zeynep Ozdemir Kutahya
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, University of Cukurova, Adana, Turkiye
| | - Kamil Uney
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, University of Selcuk, Konya, Turkiye
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Pınarbaşlı O, Bulut B, Gurbetoğlu GP, Atılgan N, Sarraçoğlu N, Aybey A. Evaluation of the effect of ethyl acrylate-methyl methacrylate copolymer on Racecadotril dispersible tablet. Turk J Pharm Sci 2021; 19:383-390. [DOI: 10.4274/tjps.galenos.2021.50432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Daudén Tello E, Alonso Suárez J, Beltrán Catalán E, Blasco Maldonado C, Herrero Manso M, Jiménez Morales A, Marín-Jiménez I, Martín-Arranz M, García-Merino A, Porta Etessam J, Rodríguez-Sagrado M, Rosas Gómez de Salazar J, Trujillo Martín E, Salgado-Boquete L. Multidisciplinary Management of the Adverse Effects of Apremilast. ACTAS DERMO-SIFILIOGRAFICAS 2021. [DOI: 10.1016/j.adengl.2020.12.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Daudén Tello E, Alonso Suárez J, Beltrán Catalán E, Blasco Maldonado C, Herrero Manso MC, Jiménez Morales A, Marín-Jiménez I, Martín-Arranz MD, García-Merino A, Porta Etessam J, Rodríguez-Sagrado MA, Rosas Gómez de Salazar J, Trujillo Martín E, Salgado-Boquete L. Multidisciplinary Management of the Adverse Effects of Apremilast. ACTAS DERMO-SIFILIOGRAFICAS 2020; 112:134-141. [PMID: 32910923 DOI: 10.1016/j.ad.2020.08.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 05/31/2020] [Accepted: 08/22/2020] [Indexed: 10/23/2022] Open
Abstract
We present a series of general and specific recommendations based on pathophysiologic considerations for managing the most common adverse effects of apremilast that lead to treatment discontinuation: diarrhea, nausea, and headache. The recommendations are based on a review of the literature and the experience of a multidisciplinary team of 14 experts including dermatologists, rheumatologists, neurologists, gastroenterologists, pharmacists, and nurses. We propose a series of simple algorithms that include clinical actions and suggestions for pharmacologic treatment. The adverse effects of apremilast can be managed from a multidisciplinary approach. The purpose of optimizing management is to bring clinical benefits to patients.
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Affiliation(s)
- E Daudén Tello
- Servicio de Dermatología, Hospital Universitario La Princesa, Madrid, España.
| | - J Alonso Suárez
- Servicio de Dermatología, Hospital Universitario Virgen de la Victoria, Málaga, España
| | - E Beltrán Catalán
- Servicio de Reumatología, Hospital Parc Salut del Mar, Barcelona, España
| | - C Blasco Maldonado
- Unidad de Enfermería, Servicio de Dermatología, Hospital Universitario Puerta de Hierro, Madrid, España
| | - M C Herrero Manso
- Unidad de Enfermería, Servicio de Reumatología, Hospital Universitario 12 de Octubre, Madrid, España
| | - A Jiménez Morales
- Servicio de Farmacia, Hospital Universitario Virgen de las Nieves, Granada, España
| | - I Marín-Jiménez
- Unidad de EII-CEIMI-Servicio de Aparato Digestivo, Hospital Gregorio Marañón, Madrid, España
| | - M D Martín-Arranz
- Servicio de Aparato Digestivo, Hospital Universitario La Paz; Grupo de Inmunidad Innata, Instituto de Investigación IdiPaz, Madrid, España
| | - A García-Merino
- Servicio de Neurología, Hospital Universitario Puerta de Hierro, Madrid, España
| | - J Porta Etessam
- Servicio de Neurología, Hospital Clínico San Carlos, Madrid, España
| | | | | | - E Trujillo Martín
- Servicio Reumatología, Hospital Universitario de Gran Canaria, Las Palmas de Gran Canaria, España
| | - L Salgado-Boquete
- Servicio de Dermatología, Complejo Hospitalario Universitario, Pontevedra, España
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Hobbs AJ, Moyes AJ, Baliga RS, Ghedia D, Ochiel R, Sylvestre Y, Doré CJ, Chowdhury K, Maclagan K, Quartly HL, Sofat R, Smit A, Schreiber BE, Coghlan GJ, MacAllister RJ. Neprilysin inhibition for pulmonary arterial hypertension: a randomized, double-blind, placebo-controlled, proof-of-concept trial. Br J Pharmacol 2019; 176:1251-1267. [PMID: 30761523 DOI: 10.1111/bph.14621] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 11/29/2018] [Accepted: 12/26/2018] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND AND PURPOSE Pulmonary arterial hypertension (PAH) is an incurable, incapacitating disorder resulting from increased pulmonary vascular resistance, pulmonary arterial remodelling, and right ventricular failure. In preclinical models, the combination of a PDE5 inhibitor (PDE5i) with a neprilysin inhibitor augments natriuretic peptide bioactivity, promotes cGMP signalling, and reverses the structural and haemodynamic deficits that characterize PAH. Herein, we conducted a randomized, double-blind, placebo-controlled trial to assess the efficacy and safety of repurposing the neprilysin inhibitor, racecadotril, in PAH. EXPERIMENTAL APPROACH Twenty-one PAH patients stable on PDE5i therapy were recruited. Acute haemodynamic and biochemical changes following a single dose of racecadotril or matching placebo were determined; this was followed by a 14-day safety and efficacy evaluation. The primary endpoint in both steps was the maximum change in circulating atrial natriuretic peptide (ANP) concentration (Δmax ), with secondary outcomes including pulmonary and systemic haemodynamics plus mechanistic biomarkers. KEY RESULTS Acute administration of racecadotril (100 mg) resulted in a 79% increase in the plasma ANP concentration and a 106% increase in plasma cGMP levels, with a concomitant 14% fall in pulmonary vascular resistance. Racecadotril (100 mg; t.i.d.) treatment for 14 days resulted in a 19% rise in plasma ANP concentration. Neither acute nor chronic administration of racecadotril resulted in a significant drop in mean arterial BP or any serious adverse effects. CONCLUSIONS AND IMPLICATIONS This Phase IIa evaluation provides proof-of-principle evidence that neprilysin inhibitors may have therapeutic utility in PAH and warrants a larger scale prospective trial.
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Affiliation(s)
- Adrian J Hobbs
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Amie J Moyes
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Reshma S Baliga
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Dipa Ghedia
- Department of Cardiology, Royal Free London NHS Foundation Trust, London, UK
| | - Rachel Ochiel
- Department of Cardiology, Royal Free London NHS Foundation Trust, London, UK
| | - Yvonne Sylvestre
- Comprehensive Clinical Trials Unit, University College London, London, UK
| | - Caroline J Doré
- Comprehensive Clinical Trials Unit, University College London, London, UK
| | - Kashfia Chowdhury
- Comprehensive Clinical Trials Unit, University College London, London, UK
| | - Kate Maclagan
- Comprehensive Clinical Trials Unit, University College London, London, UK
| | - Harriet L Quartly
- Comprehensive Clinical Trials Unit, University College London, London, UK
| | - Reecha Sofat
- Centre for Clinical Pharmacology, Rayne Institute, London, UK
| | - Angelique Smit
- Department of Cardiology, Royal Free London NHS Foundation Trust, London, UK
| | | | - Gerry J Coghlan
- Department of Cardiology, Royal Free London NHS Foundation Trust, London, UK
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Eberlin M, Chen M, Mueck T, Däbritz J. Racecadotril in the treatment of acute diarrhea in children: a systematic, comprehensive review and meta-analysis of randomized controlled trials. BMC Pediatr 2018; 18:124. [PMID: 29614995 PMCID: PMC5883268 DOI: 10.1186/s12887-018-1095-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Accepted: 03/20/2018] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Racecadotril is a guideline-recommended option for the treatment of acute diarrhea in children but existing guidelines and previous reviews of the field are based on a small fraction of published evidence. Therefore, we have performed a systematic search for randomized controlled trials evaluating racecadotril as add-on or in comparison to other treatments. METHODS A search was performed in PubMed, Scopus and Google Scholar without limits about country of origin or reporting language. A meta-analysis was conducted for the five most frequently used efficacy parameters. RESULTS We have retrieved 58 trials, from nine countries including six in comparison to placebo, 15 in comparison to various active treatments and 41 as add-on to various standard treatments (some multi-armed studies allowing more than one comparison). Trials used 45 distinct efficacy parameters, most often time to cure, % of cured children after 3 days of treatment, global efficacy and number of stools on second day of treatment. Racecadotril was superior to comparator treatments in outpatients and hospitalized patients with a high degree of consistency as confirmed by meta-analysis for the five most frequently used outcome parameters. For instance, it reduced time to cure from 106.2 h to 78.2 h (mean reduction 28.0 h; P < 0.0001 in 24 studies reporting on this parameter). Tolerability of racecadotril was comparable to that of placebo (10.4% vs. 10.6% adverse events incidence) or that of active comparator treatments other than loperamide (2.4% in both groups). CONCLUSIONS Based on a comprehensive review of the existing evidence, we conclude that racecadotril is more efficacious than other treatments except for loperamide and has a tolerability similar to placebo and better than loperamide. These findings support the use of racecadotril in the treatment of acute diarrhea in children.
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Affiliation(s)
- Marion Eberlin
- Department of Medical Affairs CHC GSA, Sanofi-Aventis Deutschland GmbH, Frankfurt am Main, Germany
| | - Min Chen
- Department of Anesthesiology, Wuhan Union Hospital, Wuhan, China
| | - Tobias Mueck
- Department of Medical Affairs CHC GSA, Sanofi-Aventis Deutschland GmbH, Frankfurt am Main, Germany
| | - Jan Däbritz
- Department of Pediatrics, University Hospital Rostock, Rostock, Germany
- Center for Immunobiology, Blizard Institute, Barts Cancer Institute, The Barts and the London School of Medicine & Dentistry, Queen Mary University, London, UK
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Fischbach W, Andresen V, Eberlin M, Mueck T, Layer P. A Comprehensive Comparison of the Efficacy and Tolerability of Racecadotril with Other Treatments of Acute Diarrhea in Adults. Front Med (Lausanne) 2016; 3:44. [PMID: 27790616 PMCID: PMC5064048 DOI: 10.3389/fmed.2016.00044] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Accepted: 09/20/2016] [Indexed: 12/27/2022] Open
Abstract
Racecadotril is a guideline-recommended treatment to alleviate symptoms of acute diarrhea. A systematic review of randomized studies was performed comparing efficacy and safety of treatment with racecadotril to that with placebo or active treatments in adults. In five double-blind studies, racecadotril and placebo had comparable tolerability, but racecadotril was more effective. This was consistent across multiple efficacy parameters including duration of diarrhea, number of diarrheic stools, abdominal pain, and meteorism; it was also consistent across countries in Africa, Asia, and Europe. In six randomized studies in outpatients comparing racecadotril to loperamide, resolution of symptoms occurred with similar speed and efficacy; however, racecadotril treatment was associated with less rebound constipation and less abdominal discomfort. The seventh comparative study performed in geriatric nursing home residents reported a superior efficacy of racecadotril. In direct comparison with Saccharomyces boulardii treatment, racecadotril exhibited similar tolerability but was more efficacious. One study compared racecadotril to octreotide in patients with acute diarrhea requiring hospitalization, rehydration, and antibiotic treatment; in this cohort, octreotide was more efficacious than racecadotril. In conclusion, in adults with acute diarrhea, racecadotril is more efficacious than placebo or S. boulardii, similarly efficacious as loperamide and, in patients with moderate to severe disease as add-on to antibiotics, less than octreotide. The tolerability of racecadotril is similar to that of placebo or S. boulardii and better than that of loperamide, particularly with regard to risk of rebound constipation. Taken together, these data demonstrate that racecadotril is a suitable treatment to alleviate symptoms of acute diarrhea in adults.
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Affiliation(s)
- Wolfgang Fischbach
- Medizinische Klinik II, Klinikum Aschaffenburg-Alzenau, Aschaffenburg, Germany
| | - Viola Andresen
- Medizinische Klinik, Israelitisches Krankenhaus, Hamburg, Germany
| | - Marion Eberlin
- Department of Medical Affairs CHC Germany, Boehringer Ingelheim Pharma GmbH & Co KG, Ingelheim, Germany
| | - Tobias Mueck
- Department of Medical Affairs CHC Germany, Boehringer Ingelheim Pharma GmbH & Co KG, Ingelheim, Germany
| | - Peter Layer
- Medizinische Klinik, Israelitisches Krankenhaus, Hamburg, Germany
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Chiguru V, Lingesh A, R. S, N. S. Forced degradation study of racecadotril: Effect of co-solvent, characterization of degradation products by UHPLC-Q-TOF-MS/MS, NMR and cytotoxicity assay. J Pharm Biomed Anal 2016; 128:9-17. [DOI: 10.1016/j.jpba.2016.05.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Revised: 05/04/2016] [Accepted: 05/05/2016] [Indexed: 10/21/2022]
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Abstract
Purpose: To provide a current review of the literature related to chemotherapy induced diarrhea (CID), including clinical assessment, recommended management guidelines and investigational pharmacological approaches for the prevention and treatment of CID. Data sources: A search of MEDLINE, PubMed, EMBASE, Cochrane Library, International Pharmaceutical Abstracts, and Web of Science (1996—2006) databases was conducted using terms such as: chemotherapy, diarrhea, diarrhoea, and irinotecan. Appropriate references from selected articles were also used. The search engine, Google, provided further access to information. Data extraction: The retrieved literature was reviewed to include all articles pertaining to the pathophysiology, assessment and management of CID. Data synthesis: Diarrhea is a debilitating and potentially life-threatening side effect associated with many chemotherapeutic agents. Despite the high incidence and severity of CID, it is often under recognized and poorly managed. A multidisciplinary panel recently updated recommended practice guidelines for the assessment and management of CID. Prompt and aggressive intervention is important in order to minimize the negative consequences of CID, such as dehydration, which may cause interruptions in optimal clinical outcomes or may lead to life-threatening sequelae. Further investigation into the pathophysiology of CID may allow for more directed approaches in the prophylaxis and treatment of CID. J Oncol Pharm Practice (2007) 13: 181—198.
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Affiliation(s)
| | - Roxanne Dobish
- Provincial Pharmacy, Cross Cancer Institute, Edmonton, Alberta, Canada,
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Opioid Facilitation of β-Adrenergic Blockade: A New Pharmacological Condition? Pharmaceuticals (Basel) 2015; 8:664-74. [PMID: 26426025 PMCID: PMC4695804 DOI: 10.3390/ph8040664] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2015] [Revised: 09/15/2015] [Accepted: 09/17/2015] [Indexed: 01/07/2023] Open
Abstract
Recently, propranolol was suggested to prevent hyperlactatemia in a child with hypovolemic shock through β-adrenergic blockade. Though it is a known inhibitor of glycolysis, propranolol, outside this observation, has never been reported to fully protect against lactate overproduction. On the other hand, literature evidence exists for a cross-talk between β-adrenergic receptors (protein targets of propranolol) and δ-opioid receptor. In this literature context, it is hypothesized here that anti-diarrheic racecadotril (a pro-drug of thiorphan, an inhibitor of enkephalinases), which, in the cited observation, was co-administered with propranolol, might have facilitated the β-blocker-driven inhibition of glycolysis and resulting lactate production. The opioid-facilitated β-adrenergic blockade would be essentially additivity or even synergism putatively existing between antagonism of β-adrenergic receptors and agonism of δ-opioid receptor in lowering cellular cAMP and dependent functions.
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Menees S, Saad R, Chey WD. Agents that act luminally to treat diarrhoea and constipation. Nat Rev Gastroenterol Hepatol 2012; 9:661-74. [PMID: 22945441 DOI: 10.1038/nrgastro.2012.162] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Diarrhoea and constipation are common clinical complaints that negatively affect quality of life, reduce work productivity and lead to considerable health-care expenditure. A variety of therapies have been used to treat these conditions. Unlike drugs that require systemic absorption to exert their effects, luminally acting agents improve diarrhoea and constipation by altering intestinal and/or colonic motility, as well as mucosal absorption and secretion, through a variety of mechanisms. Examples of luminally acting agents for diarrhoea include peripherally acting opiate analogues, enkephalinase inhibitors, bile-acid binding agents, nonabsorbed antibiotics, probiotics, bismuth-containing compounds, berberine and agents with possible effects on intestinal secretion or permeability. Luminally acting drugs for constipation include bulking agents, surfactants, osmotics, stimulants, chloride-channel activators, probiotics, drugs that increase delivery of bile acids to the colon and natural therapies such as prunes and hemp seed extract. As the physiological effects of luminally acting drugs are largely confined to the gastrointestinal tract, these agents are unlikely to cause adverse effects outside of the gastrointestinal tract.
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Affiliation(s)
- Stacy Menees
- University of Michigan Health System, 3912 Taubman Center, SPC 5362, Ann Arbor, MI 48109-5362, USA
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12
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Eberlin M, Mück T, Michel MC. A comprehensive review of the pharmacodynamics, pharmacokinetics, and clinical effects of the neutral endopeptidase inhibitor racecadotril. Front Pharmacol 2012; 3:93. [PMID: 22661949 PMCID: PMC3362754 DOI: 10.3389/fphar.2012.00093] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2012] [Accepted: 04/27/2012] [Indexed: 11/15/2022] Open
Abstract
Racecadotril, via its active metabolite thiorphan, is an inhibitor of the enzyme neutral endopeptidase (NEP, EC 3.4.24.11), thereby increasing exposure to NEP substrates including enkephalins and atrial natriuretic peptide (ANP). Upon oral administration racecadotril is rapidly and effectively converted into the active metabolite thiorphan, which does not cross the blood–brain-barrier. Racecadotril has mainly been tested in animal models and patients of three therapeutic areas. As an analgesic the effects of racecadotril across animal models were inconsistent. In cardiovascular diseases such as hypertension or congestive heart failure results from animal studies were promising, probably related to increased exposure to ANP, but clinical results have not shown substantial therapeutic benefit over existing treatment options in cardiovascular disease. In contrast, racecadotril was consistently effective in animal models and patients with various forms of acute diarrhea by inhibiting pathologic (but not basal) secretion from the gut without changing gastro-intestinal transit time or motility. This included studies in both adults and children. In direct comparative studies with loperamide in adults and children, racecadotril was at least as effective but exhibited fewer adverse events in most studies, particularly less rebound constipation. Several guidelines recommend the use of racecadotril as addition to oral rehydration treatment in children with acute diarrhea.
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Affiliation(s)
- Marion Eberlin
- Department of Medical Affairs Germany, Boehringer Ingelheim Pharma GmbH & Co KG Ingelheim, Germany
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Rautenberg TA, Zerwes U, Foerster D, Aultman R. Evaluating the cost utility of racecadotril for the treatment of acute watery diarrhea in children: the RAWD model. CLINICOECONOMICS AND OUTCOMES RESEARCH 2012; 4:109-16. [PMID: 22570557 PMCID: PMC3345933 DOI: 10.2147/ceor.s31238] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND The safety and efficacy of racecadotril to treat acute watery diarrhea (AWD) in children is well established, however its cost effectiveness for infants and children in Europe has not yet been determined. OBJECTIVE To evaluate the cost utility of racecadotril adjuvant with oral rehydration solution (ORS) compared to ORS alone for the treatment of AWD in children younger than 5 years old. The analysis is performed from a United Kingdom National Health Service (NHS) perspective. METHODS A decision tree model has been developed in Microsoft(®) Excel. The model is populated with the best available evidence. Deterministic and probabilistic sensitivity analyses (PSA) have been performed. Health effects are measured as quality-adjusted life years (QALYs) and the model output is cost (2011 GBP) per QALY. The uncertainty in the primary outcome is explored by probabilistic analysis using 1000 iterations of a Monte Carlo simulation. RESULTS Deterministic analysis results in a total incremental cost of -£379 in favor of racecadotril and a total incremental QALY gain in favor of racecadotril of +0.0008. The observed cost savings with racecadotril arise from the reduction in primary care reconsultation and secondary referral. The difference in QALYs is largely attributable to the timely resolution of symptoms in the racecadotril arm. Racecadotril remains dominant when base case parameters are varied. Monte Carlo simulation and PSA confirm that racecadotril is the dominant treatment strategy and is almost certainly cost effective, under the central assumptions of the model, at a commonly used willingness to pay proxy threshold range of £20,000-£30,000 per QALY. CONCLUSION Racecadotril as adjuvant therapy is more effective and less costly compared to ORS alone, from a UK payer perspective, for the treatment of children with acute diarrhea.
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Affiliation(s)
- Tamlyn Anne Rautenberg
- Assessment in Medicine GmbH, Lörrach, Germany
- Leeds Institute of Health Sciences, University of Leeds, Leeds, United Kingdom
| | - Ute Zerwes
- Assessment in Medicine GmbH, Lörrach, Germany
| | - Douglas Foerster
- Abbott Products Operations AG, Allschwil, Switzerland
- University of Bielefeld, School of Public Health, Bielefeld, Germany
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Abstract
Infectious diarrhea is both a local and a global concern. Illnesses can range from mild inconveniences to life-threatening epidemics. Although diarrhea can be caused by a vast array of pathogens, the cornerstone of prevention is provision of a safe food and water supply, application of basic hygiene principles, and the development and administration of vaccines. The cornerstone of treatment is rehydration. Selection of specific antimicrobial therapy should be based on disease presentation and epidemiologic factors.
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Affiliation(s)
- Rebecca L McClarren
- Family Medicine Residency Program, St Luke's Hospital, University of Toledo, 6005 Monclova Road, Maumee, OH 43537, USA.
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15
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Lehert P, Chéron G, Calatayud GA, Cézard JP, Castrellón PG, Garcia JMM, Santos M, Savitha MR. Racecadotril for childhood gastroenteritis: an individual patient data meta-analysis. Dig Liver Dis 2011; 43:707-13. [PMID: 21514257 DOI: 10.1016/j.dld.2011.03.001] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2010] [Revised: 01/31/2011] [Accepted: 03/04/2011] [Indexed: 12/11/2022]
Abstract
BACKGROUND Racecadotril is an antidiarrhoeal drug with intestinal antisecretory mechanism of action. AIM To assess racecadotril efficacy as an adjunct to oral rehydration solution, against oral rehydration solution alone or with placebo in childhood acute gastroenteritis. METHODS Individual patient data meta-analysis following multilevel mixed models testing the significance of the treatment effect adjusted for baseline covariates. RESULTS Nine randomised clinical trials (n=1384) were identified with raw data. Baseline dehydration level and Rotavirus were found as two essential predictors influencing the outcomes. The proportion of recovered patients was higher in racecadotril groups compared with placebo, Hazard Ratio HR=2.04, 95% CI (1.85; 2.32), p<0.001. For inpatient studies, the ratio of mean stool output racecadotril/placebo was 0.59 (0.51; 0.74), p<0.001. For outpatient studies, the ratio of the mean number of diarrhoeic stools racecadotril/placebo was 0.63 (0.51; 0.74), p<0.001. CONCLUSION Dehydration level and Rotavirus at baseline are essential adjustments to compare treatments. As an adjunct to oral rehydration solution, racecadotril has a clinically relevant effect in reducing diarrhoea (duration, stool output and stool number), irrespective of baseline conditions (dehydration, Rotavirus or age), treatment conditions (inpatient or outpatient studies) or cultural environment.
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Affiliation(s)
- Philippe Lehert
- Statistics Department, Faculty of Economics, FUCAM, Louvain Academy, Belgium.
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Singh N, Narayan S. Racecadotril : A Novel Antidiarrheal. Med J Armed Forces India 2011; 64:361-2. [PMID: 27688577 DOI: 10.1016/s0377-1237(08)80022-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2007] [Accepted: 04/24/2008] [Indexed: 12/01/2022] Open
Affiliation(s)
- N Singh
- Medical Officer (Pharmacology), Base Hospital (Delhi Cantt)
| | - S Narayan
- Classified Specialist, (Pediatrics), Military Hospital, Shillong
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Santos M, Marañón R, Miguez C, Vázquez P, Sánchez C. Use of racecadotril as outpatient treatment for acute gastroenteritis: a prospective, randomized, parallel study. J Pediatr 2009; 155:62-7. [PMID: 19394033 DOI: 10.1016/j.jpeds.2009.01.064] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2008] [Revised: 11/05/2008] [Accepted: 01/21/2009] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To compare the efficacy of therapy with racecadotril plus oral rehydration versus oral rehydration alone in children with gastroenteritis in an outpatient setting care. STUDY DESIGN Prospective, randomized, open and parallel study performed in a Pediatric Emergency Service of a tertiary care hospital. The study included 189 patients, ages 3 to 36 months, with acute gastroenteritis: 94 were administered an oral rehydration solution (OR), 94 received oral rehydration solution plus racecadotril (OR + R). The principal variable studied was the number of bowel movements in 48 hours after initiating treatment. RESULTS The groups were comparable clinically and epidemiologically at enrollment. No significant differences were found in the number of bowel movements between the 2 groups 48 hours after initiating treatment (4.1 +/- 2.7 bowel movements in the OR group vs 3.8 +/- 2.4 bowel movements in the OR + R group). No differences were found in the average duration of gastroenteritis (4.7 +/- 2.2 days in the OR group, 4.0 +/- 2.1 days in the OR + R group; P = .15). The incidence of adverse events was similar in both groups (19 patients [20.2%] in the OR group, 18 patients [19.1%] in the OR + R group). CONCLUSIONS In our study group, the use of racecadotril did not improve the symptoms of diarrhea compared with standard rehydration therapy.
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Affiliation(s)
- Mar Santos
- Department of Pediatrics, Hospital General Universitario Gregorio Marañón, Madrid, Spain.
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Basniwal PK, Srivastava PK, Jain SK, Jain D. RP-LC Analysis and Hydrolytic Degradation Profile of Racecadotril. Chromatographia 2008. [DOI: 10.1365/s10337-008-0734-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Wang HH, Shieh MJ, Liao KF. A blind, randomized comparison of racecadotril and loperamide for stopping acute diarrhea in adults. World J Gastroenterol 2005; 11:1540-3. [PMID: 15770734 PMCID: PMC4305700 DOI: 10.3748/wjg.v11.i10.1540] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2004] [Revised: 09/30/2004] [Accepted: 10/18/2004] [Indexed: 02/06/2023] Open
Abstract
AIM Racecadotril is a specific enkephalinase inhibitor that exhibits intestinal antisecretory activity without affecting intestinal transit. Loperamide is an effective anti-diarrheal agent, but it usually induces constipation. This study is to compare the efficacy, safety, and tolerability of racecadotril versus loperamide in the outpatient treatment of acute diarrhea in adults. METHODS A two-center, randomized, parallel-group, single-blind study was carried out to compare the efficacy, tolerability, and safety of racecadotril (100 mg thrice daily) and loperamide (2.0 mg 2 twice daily) in 62 adult patients suffering from acute diarrhea. The main efficacy criterion used was the duration of diarrhea after beginning the treatment (in hours). Other signs and symptoms were also evaluated. RESULTS The clinical success rates for these anti-diarrheal treatments were 95.7% and 92.0% for racecadotril and loperamide respectively. Patients on racecadotril had a median duration of diarrhea of 19.5 h compared with a median of 13 h for patients on loperamide. Rapid improvement in anal burn and nausea was found for each drug. However, more patients on loperamide suffered from reactive constipation (29.0% vs 12.9%). Itching, another adverse event was notably higher in the racecadotril group (28.6% vs 0%). With regard to other adverse events, the two medications showed similar occurrence rates and similar concomitant medication usage rates. CONCLUSION Racecadotril and loperamide are rapid, equally effective treatments for acute diarrhea in adults, but loperamide treatment is associated with a higher incidence of treatment-related constipation.
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Affiliation(s)
- Hwang-Huei Wang
- Division of Gastroenterology, Department of Internal Medicine, China Medical University Hospital, 2 Yuh-Der Road, Taichung, Taiwan, China
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Abstract
Acute infectious diarrhoea continues to cause high morbidity and mortality worldwide. Although oral rehydration therapy has reduced the mortality associated with acute diarrhoea, stool volume often increases during the rehydration process. Therefore, for > 20 years there has been a search for agents that will directly inhibit intestinal secretory mechanisms and thereby reduce stool volume. The most obvious target for antisecretory therapy has been the chloride channel and second messengers within the enterocyte. So far, this search has been largely unrewarding, although recent evidence suggests that a new class of chloride channel blocker is effective in vitro but further evaluation in humans is required. In addition, research during the past decade has highlighted the importance of neurohumoral mechanisms in the pathogenesis of diarrhoea, notably the role of 5-hydroxtryptamine, substance P, vasoactive intestinal polypeptide and neural reflexes within the enteric nervous system. This new dimension of intestinal pathophysiology has already exposed possible novel targets for antisecretory therapy; namely, 5-hydroxytryptamine receptor antagonists, substance P antagonists and sigma-receptor agonists. There is also the possibility for potentiating the proabsorptive effects of endogenous enkephalins by using enkephalinase inhibitors. There now seems to be a real possibility that antisecretory therapy will become more widely available in the future.
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Abstract
Les diarrhées aiguës constituent un problème de santé publique du fait de leur grande fréquence. Leur origine est presque toujours infectieuse et leur évolution spontanément résolutive, le plus souvent en moins de 3 jours. Seul 1 % des diarrhées nécessite d'emblée des explorations complémentaires, notamment des examens de selles, car leur présentation clinique évoque une colite aiguë sous-jacente (selles sanglantes, douleurs abdominales circonscrites), du fait d'un terrain fragile sous-jacent avec un risque immédiat pour le malade, ou d'un contexte particulier (séjour sous les tropiques…). Ces examens de selles doivent être orientés afin de guider le biologiste et améliorer la rentabilité des prélèvements, qui s'avère sinon très faible et coûteuse à l'échelle d'une population. Une antibiothérapie empirique basée essentiellement sur les fluoroquinolones est ensuite licite dans ces cas sélectionnés, en attendant les résultats des examens. Ces explorations sont aussi justifiées lorsque la diarrhée persiste au-delà de 3 jours. Enfin, lorsque l'épisode se prolonge au-delà de 5 jours, avec des prélèvements de selles négatifs, un avis spécialisé est nécessaire. Ainsi, seule une petite proportion de ces diarrhées aiguës va nécessiter une endoscopie, permettant de parler ainsi de colite ou de rectocolite. Au plan thérapeutique, la réhydratation précoce chez l'enfant reste d'actualité car elle a prouvé son efficacité en termes de mortalité depuis plus de deux décennies, principalement dans les pays en voie de développement.
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Lundgren O, Svensson L. I, 3. The enteric nervous system and infectious diarrhea. PERSPECTIVES IN MEDICAL VIROLOGY 2003; 9:51-67. [PMID: 32287599 PMCID: PMC7133836 DOI: 10.1016/s0168-7069(03)09004-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Abstract
This chapter discusses the background knowledge about the enteric nervous system (ENS) as well as the role of ENS in secretory states of the small intestine. The chapter describes the anatomy and physiology of the ENS. A description of the experimental evidence for the involvement of ENS in secretory states of the gut, primarily in cholera toxin-induced secretion that is the most thoroughly investigated secretory state, is presented in the chapter. The chapter focuses on the involvement of ENS in rotavirus (RV) diarrhea. The involvement of the ENS in diarrhea pathophysiology opens up new potential sites of action for drugs in the treatment of intestinal secretory states. The chapter concludes with a discussion of the sites of action for the pharmacological treatment of diarrhea.
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Affiliation(s)
- Ove Lundgren
- Department of Physiology, Sahlgrenska Academy, Göteborg University, Box 432, S-405 30, Göteborg, Sweden
| | - Lennart Svensson
- Department of Virology, Swedish Institute for Infectious Disease Control, S-171 82 Solna, Sweden
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Abstract
This paper is the twenty-third installment of the annual review of research concerning the opiate system. It summarizes papers published during 2000 that studied the behavioral effects of the opiate peptides and antagonists, excluding the purely analgesic effects, although stress-induced analgesia is included. The specific topics covered this year include stress; tolerance and dependence; learning, memory, and reward; eating and drinking; alcohol and other drugs of abuse; sexual activity, pregnancy, and development; mental illness and mood; seizures and other neurological disorders; electrical-related activity; general activity and locomotion; gastrointestinal, renal, and hepatic function; cardiovascular responses; respiration and thermoregulation; and immunological responses.
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Affiliation(s)
- A L Vaccarino
- Department of Psychology, University of New Orleans, New Orleans, LA 70148, USA.
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