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Singh NK, Beckett JM, Kalpurath K, Ishaq M, Ahmad T, Eri RD. Synbiotics as Supplemental Therapy for the Alleviation of Chemotherapy-Associated Symptoms in Patients with Solid Tumours. Nutrients 2023; 15:nu15071759. [PMID: 37049599 PMCID: PMC10096799 DOI: 10.3390/nu15071759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/27/2023] [Accepted: 03/30/2023] [Indexed: 04/07/2023] Open
Abstract
Chemotherapy is still the first line of treatment for most cancer patients. Patients receiving chemotherapy are generally prone to infections, which result in complications, such as sepsis, mucositis, colitis, and diarrhoea. Several nutritional approaches have been trialled to counter the chemotherapy-associated side effects in cancer patients, but none have yet been approved for routine clinical use. One of the approaches to reduce or avoid chemotherapy-associated complications is to restore the gut microbiota. Gut microbiota is essential for the healthy functioning of the immune system, metabolism, and the regulation of other molecular responses in the body. Chemotherapy erodes the mucosal layer of the gastrointestinal tract and results in the loss of gut microbiota. One of the ways to restore the gut microbiota is through the use of probiotics. Probiotics are the ‘good’ bacteria that may provide health benefits if consumed in appropriate amounts. Some studies have highlighted that the consumption of probiotics in combination with prebiotics, known as synbiotics, may provide better health benefits when compared to probiotics alone. This review discusses the different nutritional approaches that have been studied in an attempt to combat chemotherapy-associated side effects in cancer patients with a particular focus on the use of pre-, pro- and synbiotics.
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Affiliation(s)
- Neeraj K. Singh
- School of Health Sciences, University of Tasmania, Newnham, Launceston 7248, Australia
| | - Jeffrey M. Beckett
- School of Health Sciences, University of Tasmania, Newnham, Launceston 7248, Australia
| | - Krishnakumar Kalpurath
- School of Health Sciences, University of Tasmania, Newnham, Launceston 7248, Australia
- Mersey Community Hospital, Latrobe 7307, Australia
| | - Muhammad Ishaq
- School of Health Sciences, University of Tasmania, Newnham, Launceston 7248, Australia
| | - Tauseef Ahmad
- School of Health Sciences, University of Tasmania, Newnham, Launceston 7248, Australia
| | - Rajaraman D. Eri
- School of Health Sciences, University of Tasmania, Newnham, Launceston 7248, Australia
- School of Science, STEM College, RMIT University, Melbourne 3083, Australia
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Hamdeh S, Micic D, Hanauer S. Drug-Induced Colitis. Clin Gastroenterol Hepatol 2021; 19:1759-1779. [PMID: 32360808 DOI: 10.1016/j.cgh.2020.04.069] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 03/31/2020] [Accepted: 04/20/2020] [Indexed: 02/07/2023]
Abstract
Drug-induced colitis encompasses a wide spectrum of colon disorders that can manifest microscopically or macroscopically. Patients present with new-onset colitis or exacerbations of inflammatory bowel diseases; in some cases, colitis resolves with discontinuation of medication. Mucosal injury can be focal or extensive, involving the entire colonic mucosa, and sometimes involves other parts of the gastrointestinal tract. It has been a challenge to determine the proportion of new-onset colitis caused by medication and there are few data on the overall prevalence. We review the drugs that have been linked with development of drug-induced colitis and strategies for physicians who believe their patients have this disorder-usually discontinuation of the drug believed to cause colitis and treatment with steroids or immune-modulating therapies. Physicians must be aware of medications that can cause colitis.
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Affiliation(s)
- Shadi Hamdeh
- Department of Internal Medicine, Division of Gastroenterology, Hepatology and Motility, University of Kansas, Kansas City, Kansas.
| | - Dejan Micic
- Department of Internal Medicine, Section of Gastroenterology, Hepatology and Nutrition, University of Chicago, Chicago, Illinois
| | - Stephen Hanauer
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
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Mehran S, Taravati A, Baljani E, Rasmi Y, Gholinejad Z. Fever and breast cancer: A critical review of the literature and possible underlying mechanisms. Breast Dis 2021; 40:117-131. [PMID: 33749632 DOI: 10.3233/bd-201001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Fever is a common feature in various pathological conditions that manifests a series of molecular events in the internal milieu. Much less attention has been paid to the clinical importance and the management of fever in breast cancer patients. However, several studies have reported an association between postoperative fever and poor treatment outcomes in breast cancer patients. The fever is a side effect of chemotherapy and a manifestation of cancer recurrence. The postmenopausal breast cancer patients experience another body temperature disturbance that is known as a hot flashes. Here, we reviewed the literature regarding postoperative fever and the possible underlying molecular and cellular mechanisms. Then the efficacy of non-steroidal anti-inflammatory drugs was discussed as a therapeutic option to control postoperative fever. Finally, we reviewed the chemotherapy-induced neutropenic fever and cancer vaccination-induced fever.
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Affiliation(s)
- Shiva Mehran
- Department of Biology, Higher Education Institute of Rabe-Rashidi, Tabriz, Iran
| | - Afshin Taravati
- Department of Veterinary Science, Rasht Branch, Islamic Azad University, Rasht, Iran
| | - Esfandiar Baljani
- Department of Nursing, Urmia Branch, Islamic Azad University, Urmia, Iran
| | - Yousef Rasmi
- Department of Biochemistry, Faculty of Medicine, Urmia University of Medical Science, Urmia, Iran
| | - Zafar Gholinejad
- Department of Medical Laboratory Science, Urmia Branch, Islamic Azad University, Urmia, Iran
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Chen E, Abu-Sbeih H, Thirumurthi S, Mallepally N, Khurana S, Wei D, Altan M, Morris VK, Tan D, Barcenas CH, Wang Y. Clinical characteristics of colitis induced by taxane-based chemotherapy. Ann Gastroenterol 2019; 33:59-67. [PMID: 31892799 PMCID: PMC6928479 DOI: 10.20524/aog.2019.0431] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Accepted: 10/07/2019] [Indexed: 12/18/2022] Open
Abstract
Background: Limited data are available concerning the clinical features of toxic gastrointestinal (GI) effects of taxane-based therapy. We describe the clinical, endoscopic and histologic features of taxane-induced colitis. Methods: This retrospective study included cancer patients who received taxane therapy and underwent colonoscopy for GI symptoms from 2000-2018. Results: Of the 45,527 patients who received taxane therapy during the study period, 76 (0.2%) met the inclusion criteria. Most patients (54%) received paclitaxel, 37% docetaxel, and 9% nab-paclitaxel. The median time from taxane therapy initiation to colitis symptom onset was 31 days. The median duration of colitis symptoms was 30 days. Colitis treatment comprised immunosuppressive therapy in 8 patients (11%), antibiotics in 17 (22%), antimotility agents in 18 (24%), and octreotide or somatostatin in 2 (3%). Thirty-five patients (46%) required hospitalization and seven (9%) required admission to the intensive care unit (ICU). Endoscopy revealed mucosal ulceration in 19 patients (25%), nonulcerative inflammation in 32 (42%), and normal findings in 25 (33%). Seventeen patients (22%) had features of lymphocytic colitis. One patient had spontaneous colonic perforation that required surgical intervention. Colitis symptoms recurred in 7 patients (9%) after initial improvement. Patients who received nab-paclitaxel developed GI toxicity earlier (P=0.003), required colitis-related hospitalization more frequently (P=0.005), and received intravenous fluids more frequently (P=0.025), compared with patients who received other taxanes. Conclusions: Taxane-related colitis can present with significant inflammation on colonoscopy, and in a minority of patients as microscopic colitis. Taxane-induced colitis, although uncommon, can lead to ICU admission and colonic perforation.
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Affiliation(s)
- Ellie Chen
- Department of Medicine, Baylor College of Medicine (Ellie Chen, Niharika Mallepally)
| | - Hamzah Abu-Sbeih
- Department of Gastroenterology, Hepatology and Nutrition, The University of Texas MD Anderson Cancer Center (Hamzah Abu-Sbeih, Selvi Thirumurthi, Yinghong Wang)
| | - Selvi Thirumurthi
- Department of Gastroenterology, Hepatology and Nutrition, The University of Texas MD Anderson Cancer Center (Hamzah Abu-Sbeih, Selvi Thirumurthi, Yinghong Wang)
| | - Niharika Mallepally
- Department of Medicine, Baylor College of Medicine (Ellie Chen, Niharika Mallepally)
| | - Shruti Khurana
- Department of Internal Medicine, McGovern Medical School, The University of Texas Health Science Center (Shruti Khurana)
| | - Dongguang Wei
- Department of Pathology and Lab Medicine, The University of Texas MD Anderson Cancer Center (Dongguang Wei, Dongfeng Tan)
| | - Mehmet Altan
- Department of Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson, Cancer Center (Mehmet Altan)
| | - Van K Morris
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center (Van K. Morris)
| | - Dongfeng Tan
- Department of Pathology and Lab Medicine, The University of Texas MD Anderson Cancer Center (Dongguang Wei, Dongfeng Tan)
| | - Carlos H Barcenas
- Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center (Carlos H. Barcenas), Houston, Texas, USA
| | - Yinghong Wang
- Department of Gastroenterology, Hepatology and Nutrition, The University of Texas MD Anderson Cancer Center (Hamzah Abu-Sbeih, Selvi Thirumurthi, Yinghong Wang)
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An imaging-based review of systemic therapies and associated toxicities in metastatic pancreatic cancer as per the 2018 ASCO guidelines: what every radiologist should know. Abdom Radiol (NY) 2019; 44:2182-2195. [PMID: 30820626 DOI: 10.1007/s00261-019-01954-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
OBJECTIVE To provide an overview of what radiologists should know about systemic agents utilized in the modern treatment of metastatic pancreatic cancer and their associated toxicities. RESULTS The clinical landscape of metastatic pancreatic cancer has significantly evolved in recent years, with the advent of new first- and second-line systemic therapies. As these systemic treatment options continue to expand, knowledge of their clinically relevant features is becoming critical for radiologists. While the issues of surgical resectability and tumor response evaluation of advanced stages of pancreatic cancer have been thoroughly discussed in the radiology literature, the diagnostic importance of systemic therapies has tended to be less well appreciated. In this review, we provide a primer for radiologists outlining the radiologically pertinent features of modern systemic therapies used in the treatment of metastatic pancreatic ductal adenocarcinoma. These systemic agents are discussed from the standpoint of the newly updated 2018 ( https://doi.org/10.1007/s00261-019-01954-z ) guidelines for the treatment of metastatic pancreatic cancer from the American Society of Clinical Oncology (ASCO). Understanding the radiology relevance of these modern therapeutic agents is critical, especially with regard to treatment response and toxicity assessment. CONCLUSION Knowledge of the modern systemic therapies utilized in the treatment of metastatic pancreatic cancer and their associated toxicity profiles is critical in diagnostic imaging interpretation.
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Gray EJ, Darvishzadeh A, Sharma A, Ganeshan D, Faria SC, Lall C. Cancer therapy-related complications in the bowel and mesentery: an imaging perspective. Abdom Radiol (NY) 2016; 41:2031-47. [PMID: 27277528 DOI: 10.1007/s00261-016-0799-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Cancer therapy-induced complications in the bowel and mesentery are fairly common. It is important for clinicians to be aware of these complications and the agents most frequently implicated. Cancer therapy is rapidly evolving and often encompasses both classic cytotoxic drugs and newer molecular targeted agents. Drugs from both broad classes can have numerous adverse effects on the bowel and mesentery that can be detected on imaging. These adverse effects include ileus, various forms of enterocolitis, gastrointestinal perforation, pneumatosis intestinalis, secretory diarrhea, and sclerosing mesenteritis. These complications are diverse and range from relatively benign to life threatening. The management is also variable, but many of these conditions are easily controlled and reversed with supportive care and cessation of the particular cancer therapy. The objective of this pictorial essay is to demonstrate some of the more common cancer therapy-induced complications of the bowel and mesentery, with a focus on the radiographic findings.
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Affiliation(s)
- Eric J Gray
- Department of Radiological Sciences, University of California, Irvine School of Medicine, 101 The City Drive South, Orange, CA, 92868, USA.
| | - Ayeh Darvishzadeh
- Department of Radiological Sciences, University of California, Irvine School of Medicine, 101 The City Drive South, Orange, CA, 92868, USA
| | - Ankush Sharma
- Department of Internal Medicine, University of California, Irvine School of Medicine, Orange, CA, USA
| | - Dhakshinamoorthy Ganeshan
- Department of Diagnostic Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Silvana C Faria
- Department of Diagnostic Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Chandana Lall
- Department of Radiological Sciences, University of California, Irvine School of Medicine, 101 The City Drive South, Orange, CA, 92868, USA
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8
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Adjuvant 5-fluorouracil-induced colitis necessitating completion colectomy. J Gastrointest Cancer 2011; 42:275-7. [PMID: 21207190 DOI: 10.1007/s12029-010-9241-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Carrion AF, Hosein PJ, Cooper EM, Lopes G, Pelaez L, Rocha-Lima CM. Severe colitis associated with docetaxel use: A report of four cases. World J Gastrointest Oncol 2010; 2:390-4. [PMID: 21160890 PMCID: PMC2999675 DOI: 10.4251/wjgo.v2.i10.390] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2010] [Revised: 07/28/2010] [Accepted: 08/04/2010] [Indexed: 02/05/2023] Open
Abstract
Diarrhea is a common side effect of chemotherapy. Pseudomembranous colitis is a well known complication of antibiotic treatment that can also be observed, albeit rarely, with certain chemotherapeutic agents. We present four cases of severe colitis in patients undergoing treatment with taxane-based chemotherapy for pancreatic, lung and breast cancer. None of them had recently received antibiotics. One patient presented with a bowel perforation and three had endoscopic findings of pseudomembranous colitis. Two of these three patients had negative stool toxin assays for Clostridium difficile. In the patient presenting with perforation, an emergency left hemicolectomy was performed and the pathological findings in the colon were acute inflammation and ischemic necrosis; the other three patients were treated with oral vancomycin and/or oral or intravenous metronidazole leading to complete resolution of the symptoms. Apart from pseudomembranous colitis, we describe patients presenting with neutropenic enterocolitis as well as ischemic colitis after docetaxel use. These cases provide some insight into the spectrum and varied clinical presentations of severe colitis associated with taxane-based chemotherapy.
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Affiliation(s)
- Andres F Carrion
- Andres F Carrion, Peter J Hosein, Eugene M Cooper, Liset Pelaez, Caio M Rocha-Lima, Department of Medicine, Division of Gastroenterology, Hematology/Oncology, Pathology, University of Miami Miller School of Medicine, Miami, FL 33136, United States
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10
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Lethal Clostridium difficile Colitis Associated with Paclitaxel and Carboplatin Chemotherapy in Ovarian Carcinoma: Case Report and Review of the Literature. Obstet Gynecol Int 2010; 2010. [PMID: 20706661 PMCID: PMC2913858 DOI: 10.1155/2010/749789] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2010] [Accepted: 05/31/2010] [Indexed: 12/21/2022] Open
Abstract
Clostridium difficile colitis, although rare, could represent a serious complication following chemotherapy. Prior antibiotic use has been considered the single most important risk factor in the development of C. difficile infection. Recently, the association between antineoplastic therapy and C. difficile-associated diarrhea in the absence of a prior antibiotic therapy has become more apparent. A 75-year-old woman with serous adenocarcinoma of the ovary developed lethal pancolitis caused by C. difficile after five cycles of paclitaxel- and carboplatin-based chemotherapy. She presented with diarrhea, coffee-ground emesis, and oliguria and was hospitalized immediately for aggressive treatment. Despite all the medical efforts, her condition worsened and she died after twenty days. We describe the second case reported of a patient developing a severe C. difficile colitis following chemotherapy without any recent antibiotic use and review the data of the literature, emphasizing the need to a prompt diagnosis and management that can significantly decrease the morbidity and life-threatening complications associated with this infection.
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A physiological approach to modernize the management of cancer chemotherapy-induced gastrointestinal toxicity. Curr Opin Support Palliat Care 2010; 4:19-25. [PMID: 20009760 DOI: 10.1097/spc.0b013e32833575cc] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
PURPOSE OF REVIEW Gastrointestinal toxicity during chemotherapy is frequent. Symptomatic therapies for gastrointestinal toxicity, which do not address the underlying cause, may result in inadequate symptom control. With advances in curative treatment regimens, it becomes more important to minimize treatment toxicity which otherwise may compromise optimal chemotherapy and the chance of cure. RECENT FINDINGS For decades, oncologists have concentrated on delineating the pathological processes, which occur within the gastrointestinal tract during chemotherapy treatment. However, pathological change does not in itself cause symptoms. Symptoms only arise when physiological functions are altered. In immunosuppressed patients, it is a priority to exclude infection as a cause for symptoms. In the presence of diarrhoea, the best investigative paradigm for this is stool culture, upper gastrointestinal endoscopy with duodenal biopsies and duodenal aspirate combined with flexible sigmoidoscopy and left colonic biopsies. Once infection has been excluded, although large studies have not been performed, case series repeatedly suggest that gastrointestinal symptoms arising during cancer chemotherapy can often be cured if newly acquired, gastrointestinal physiological deficits are identified. SUMMARY Although many physiological changes induced by chemotherapy may be relatively transient and settle weeks or months after the end of treatment, during chemotherapy, their manifestations can be protean and severe. A systematic failure to research the frequency with which physiological causes of the symptoms are amenable to treatment has denied many patients' logical therapies for their chemotherapy-induced symptoms, and as a result, it is likely that symptomatic treatments are frequently suboptimal.
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Lalos AT, Bansal P, Rishikesh R. Case of fulminant colitis after docetaxel therapy for breast carcinoma in a patient with underlying ulcerative colitis. Am J Gastroenterol 2009; 104:2651-2. [PMID: 19806113 DOI: 10.1038/ajg.2009.366] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Imaging of the gastrointestinal complications of systemic chemotherapy. Clin Radiol 2009; 64:724-33. [DOI: 10.1016/j.crad.2009.02.016] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2008] [Revised: 01/21/2009] [Accepted: 02/05/2009] [Indexed: 01/03/2023]
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Mychaluk J, Piprot C, Sevestre H, Merviel P, Gondry J, Fauvet R. [Intestinal perforation: an unusual adverse event of bevacizumab and paclitaxel combined therapy for a metastatic breast cancer]. Presse Med 2009; 38:1370-4. [PMID: 19349140 DOI: 10.1016/j.lpm.2008.10.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2008] [Revised: 09/11/2008] [Accepted: 10/27/2008] [Indexed: 11/19/2022] Open
Affiliation(s)
- Johanna Mychaluk
- Centre de gynécologie obstétrique, CHU d'Amiens, Amiens Cedex 1, France
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Trébol J, Duarte M, Gil-López JM, García-Sancho L. Abdomen agudo en una paciente con cáncer de mama tratada con quimioterapia. Cir Esp 2009; 85:115-6. [PMID: 19231469 DOI: 10.1016/j.ciresp.2008.08.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2008] [Accepted: 08/29/2008] [Indexed: 10/21/2022]
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Kaur H, Loyer EM, David CL, Sawaf H, DuBrow RA, Ibrahim NK. Radiologic findings in taxane induced colitis. Eur J Radiol 2007; 66:75-8. [PMID: 17553645 DOI: 10.1016/j.ejrad.2007.04.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2006] [Revised: 04/11/2007] [Accepted: 04/24/2007] [Indexed: 01/03/2023]
Abstract
Ischemic colitis in breast cancer patients being treated with taxane-based chemotherapy, which may lead to serious morbidities and even death, has recently been defined as a clinical entity. The purpose of this retrospective study was to evaluate the computed tomography (CT) findings in taxane-related colitis and determine their clinical relevance. CT scans of 41 patients at risk for taxane colitis were reviewed retrospectively for bowel and peritoneal abnormalities. Morphological findings were analyzed and correlated with clinical, pathological, and endoscopic findings. CT scans in 10 of the 41 patients showed a definitely abnormal colon with a thickened wall or distended with fluid, signs that are suggestive of colitis, in the context of the clinical picture. Radiographic changes in patients with taxane colitis are not specific but, in the appropriate context, can suggest the correct diagnosis and guide the patient's management.
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Affiliation(s)
- Harmeet Kaur
- Department of Diagnostic Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.
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McEntee MC, Rassnick KM, Lewis LD, Zgola MM, Beaulieu BB, Balkman CE, Page RL. Phase I and pharmacokinetic evaluation of the combination of orally administered docetaxel and cyclosporin A in tumor-bearing dogs. Am J Vet Res 2006; 67:1057-62. [PMID: 16740102 DOI: 10.2460/ajvr.67.6.1057] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To determine the maximum tolerated dose and characterize the pharmacokinetic disposition of an orally administered combination of docetaxel and cyclosporin A (CSA) in dogs with tumors. ANIMALS 16 client-owned dogs with metastatic or advanced-stage refractory tumors. PROCEDURES An open-label, dose-escalation, single-dose, phase I study of docetaxel administered in combination with a fixed dose of CSA was conducted. Docetaxel (at doses of 1.5, 1.625, or 1.75 mg/kg) and CSA (5 mg/kg) were administered concurrently via gavage twice during a 3-week period. Plasma docetaxel concentrations were quantified by use of high-performance liquid chromatography, and pharmacokinetic disposition was characterized by use of noncompartmental analysis. Dogs' clinical signs and results of hematologic and biochemical analyses were monitored for evidence of toxicosis. RESULTS No acute hypersensitivity reactions were observed after oral administration of docetaxel. Disposition of docetaxel was dose independent over the range evaluated, and pharmacokinetic variables were similar to those reported in previous studies involving healthy dogs, with the exception that values for clearance were significantly higher in the dogs reported here. The maximum tolerated dose of docetaxel was 1.625 mg/kg. Gastrointestinal signs of toxicosis were dose limiting. CONCLUSIONS AND CLINICAL RELEVANCE The absence of myelosuppression suggested that the docetaxel-CSA combination may be administered more frequently than the schedule used. Further studies are warranted to evaluate combination treatment administered on a biweekly schedule in dogs with epithelial tumors.
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Affiliation(s)
- Margaret C McEntee
- Section of Oncology, Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA
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