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Pohlmann PR, Graham D, Wu T, Ottaviano Y, Mohebtash M, Kurian S, McNamara D, Lynce F, Warren R, Dilawari A, Rao S, Mainor C, Swanson N, Tan M, Isaacs C, Swain SM. HALT-D: a randomized open-label phase II study of crofelemer for the prevention of chemotherapy-induced diarrhea in patients with HER2-positive breast cancer receiving trastuzumab, pertuzumab, and a taxane. Breast Cancer Res Treat 2022; 196:571-581. [PMID: 36280642 PMCID: PMC9633499 DOI: 10.1007/s10549-022-06743-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 09/05/2022] [Indexed: 01/31/2023]
Abstract
PURPOSE To assess whether crofelemer would prevent chemotherapy-induced diarrhea (CID) diarrhea in patients with HER2-positive, any-stage breast cancer receiving trastuzumab (H), pertuzumab (P), and a taxane (T; docetaxel or paclitaxel), with/without carboplatin (C; always combined with docetaxel rather than paclitaxel). METHODS Patients scheduled to receive ≥ 3 consecutive TCHP/THP cycles were randomized to crofelemer 125 mg orally twice daily during chemotherapy cycles 1 and 2 or no scheduled prophylactic medication (control). All received standard breakthrough antidiarrheal medication (BTAD) as needed. The primary endpoint was incidence of any-grade CID for ≥ 2 consecutive days. Secondary endpoints were incidence of all-grade and grade 3/4 CID by cycle/stratum; time to onset and duration of CID; stool consistency; use of BTAD; and quality of life (Functional Assessment of Chronic Illness Therapy for Patients With Diarrhea [FACIT-D] score). RESULTS Fifty-one patients were randomized to crofelemer (n = 26) or control (n = 25). There was no statistically significant difference between arms for the primary endpoint; however, incidence of grade ≥ 2 CID was reduced with crofelemer vs control (19.2% vs 24.0% in cycle 1; 8.0% vs 39.1%, in cycle 2). Patients receiving crofelemer were 1.8 times more likely to see their diarrhea resolved and had less frequent watery diarrhea. CONCLUSION Despite the choice of primary endpoint being insensitive, crofelemer reduced the incidence and severity of CID in patients with HER2-positive breast cancer receiving P-based therapy. These data are supportive of further testing of crofelemer in CID. TRIAL REGISTRATION Clinicaltrials.gov, NCT02910219, prospectively registered September 21, 2016.
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Affiliation(s)
- Paula R Pohlmann
- Georgetown Lombardi Comprehensive Cancer Center, Washington, DC, USA
- MedStar Georgetown University Hospital, Washington, DC, USA
- Department of Breast Medical Oncology, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Deena Graham
- Georgetown Lombardi Comprehensive Cancer Center, Washington, DC, USA
- Hackensack University Medical Center, Hackensack, NJ, USA
| | - Tianmin Wu
- Georgetown Lombardi Comprehensive Cancer Center, Washington, DC, USA
- Clinical Research Management Office, Georgetown University Medical Center, Washington, DC, USA
| | | | | | - Shweta Kurian
- Medstar Franklin Square Medical Center, Baltimore, MD, USA
| | - Donna McNamara
- Georgetown Lombardi Comprehensive Cancer Center, Washington, DC, USA
- Hackensack University Medical Center, Hackensack, NJ, USA
| | | | - Robert Warren
- Georgetown Lombardi Comprehensive Cancer Center, Washington, DC, USA
- MedStar Georgetown University Hospital, Washington, DC, USA
- Clinical Research Management Office, Georgetown University Medical Center, Washington, DC, USA
| | - Asma Dilawari
- Georgetown Lombardi Comprehensive Cancer Center, Washington, DC, USA
- MedStar Georgetown University Hospital, Washington, DC, USA
- Clinical Research Management Office, Georgetown University Medical Center, Washington, DC, USA
- FDA Center for Drug Evaluation and Research, Silver Spring, MD, USA
| | - Suman Rao
- Medstar Franklin Square Medical Center, Baltimore, MD, USA
| | - Candace Mainor
- Georgetown Lombardi Comprehensive Cancer Center, Washington, DC, USA
- MedStar Georgetown University Hospital, Washington, DC, USA
- Clinical Research Management Office, Georgetown University Medical Center, Washington, DC, USA
| | - Nicole Swanson
- Clinical Research Management Office, Georgetown University Medical Center, Washington, DC, USA
| | - Ming Tan
- Georgetown Lombardi Comprehensive Cancer Center, Washington, DC, USA
- Clinical Research Management Office, Georgetown University Medical Center, Washington, DC, USA
- Department of Biostatistics, Bioinformatics, and Biomathematics, Georgetown University Medical Center, Washington, DC, USA
| | - Claudine Isaacs
- Georgetown Lombardi Comprehensive Cancer Center, Washington, DC, USA
- Clinical Research Management Office, Georgetown University Medical Center, Washington, DC, USA
| | - Sandra M Swain
- Georgetown Lombardi Comprehensive Cancer Center, Washington, DC, USA.
- MedStar Health, Washington, DC, USA.
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Chu KM, Bust L, Forgan T. Colorectal Surgery Practice, Training, and Research in Low-Resource Settings. Clin Colon Rectal Surg 2022; 35:410-416. [PMID: 36111082 PMCID: PMC9470283 DOI: 10.1055/s-0042-1746190] [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: 11/03/2022]
Abstract
Colorectal surgery (CRS) practice, training, and research differ between low- and middle-income countries (LMICs) and high-income countries due to disparity in resources. LMIC CRS is primarily done by general surgeons due to the paucity of fully trained colorectal surgeons. The majority of colon and rectal resections are done using open techniques, and laparoscopy and robotic platforms are only available in select private or academic centers. Multi-disciplinary teams are not available in most hospitals, so surgeons must have a broad knowledge base, and learn to adapt their practice. Formal CRS training opportunities through accredited post-residency fellowships and professional colorectal surgical associations are limited in LMICs. CRS is less established as an academic field, and less data are generated in LMICs. There are fewer staff and less dedicated funding for CRS research. However, LMIC colorectal surgeons and researchers can contribute valuable clinical findings especially on conditions of higher prevalence in their settings such as anal squamous cell carcinoma and obstetric fistulas. Effective surgical care for colorectal conditions requires significant investment in infrastructure, training, and governance in LMICs. This is critical to improve access to safe surgical care for all.
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Affiliation(s)
- Kathryn M. Chu
- Centre for Global Surgery, Department of Global Health, Faculty of Medicine and Health Sciences, Francie van Zijl Drive Stellenbosch University, Tygerberg, South Africa
- Department of Surgery, University of Botswana, Gaborone, Botswana
| | - Lynn Bust
- Centre for Global Surgery, Department of Global Health, Faculty of Medicine and Health Sciences, Francie van Zijl Drive Stellenbosch University, Tygerberg, South Africa
| | - Tim Forgan
- Department of Surgical Sciences, Faculty of Medicine and Health Sciences, Francie van Zijl Drive Stellenbosch University, Tygerberg, South Africa
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Chronic Diarrhea as the Sole Symptom of HIV Infection: A Case Report. JOURNAL OF CLINICAL AND BASIC RESEARCH 2021. [DOI: 10.52547/jcbr.5.3.21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Greene C, Barlesi B, Tarroza-David S, Friedlander T. Improved Control of Tyrosine Kinase Inhibitor-Induced Diarrhea with a Novel Chloride Channel Modulator: A Case Report. Oncol Ther 2021; 9:247-253. [PMID: 33826111 PMCID: PMC8140018 DOI: 10.1007/s40487-021-00147-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 03/06/2021] [Indexed: 11/04/2022] Open
Abstract
Despite the efficacy of tyrosine kinase inhibitors (TKIs) across multiple cancers, side effects including treatment-related diarrhea can impede a patient’s ability to reach therapeutic doses or stay on therapy. Below, we present the case of a 72-year-old patient with metastatic papillary renal cell carcinoma recurrent despite nephrectomy. Over the course of treatment, the patient received multiple different tyrosine kinase inhibitors with varying efficacy. Treatment with the TKI cabozantinib after failure of two prior TKIs resulted in a clinical response with shrinkage of his nodal metastatic disease. However, the severe treatment-related diarrhea refractory to conventional management required both dose holds and dose reductions of cabozantinib. Off-label administration of crofelemer, a novel FDA-approved antidiarrheal agent, successfully controlled the treatment-related diarrhea and allowed resumption and partial dose increase of cabozantinib. This case suggests that crofelemer could be a viable therapeutic strategy to address TKI-induced diarrhea.
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Affiliation(s)
- Claire Greene
- Division of Hematology and Oncology, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, California, USA
| | - Brigid Barlesi
- Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, California, USA
| | - Sigrid Tarroza-David
- Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, California, USA
| | - Terence Friedlander
- Division of Hematology and Oncology, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, California, USA.
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5
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Mapesa WA, Waweru MP, Bukachi F, Wafula KD. Aqueous Tuber Extracts of Tylosema fassoglense (Kotschy ex Schweinf.) Torre and Hillc. (Fabaceae). Possess Significant In-Vivo Antidiarrheal Activity and Ex-Vivo Spasmolytic Effect Possibly Mediated by Modulation of Nitrous Oxide System, Voltage-Gated Calcium Channels, and Muscarinic Receptors. Front Pharmacol 2021; 12:636879. [PMID: 33796023 PMCID: PMC8007759 DOI: 10.3389/fphar.2021.636879] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 01/29/2021] [Indexed: 12/12/2022] Open
Abstract
Tylosema fassoglense (TFG) is used as an antidiarrheal traditional medicine in Western Kenya. This study aimed to investigate the antidiarrheal activity of its aqueous extracts in-vivo and the putative mechanism (s) of action ex-vivo using Sprague-Dawley rats and New Zealand white rabbits respectively. The in-vivo antidiarrheal effects of the extract were evaluated in castor oil-induced diarrhea, the castor oil-induced enteropooling, and phenol red gastric motility tests. On the other hand, isolated rabbit's jejunal segments were used to evaluate the spasmolytic effect of TFG on spontaneous contraction, in acetylcholine-induced contraction, in presence of 80mMK+, calcium chloride-induced contraction as well as in presence of the following antagonists: naloxone, methylene blue, L-NAME, prazosin, and propranolol in the ex-vivo studies. The data were express as Mean ± S.E.M and analyzed by one-way ANOVA and Tukey's post hoc test in cases of significance which was set at p < 0.05. The extract was phytochemically characterized using Liquid chromatography Mass spectroscopy (LC-MS).The extract possessed significant inhibitory effect in the in-vivo experiments. The extract exhibited significant spasmolytic effect on both spontaneous contraction and in jejunal segment pre-contracted acetylcholine as well as in presence of 80mMK+ solution. It also attenuated the spasmogenic effect of various concentration of calcium chloride. The extract's spasmolytic effect was, however, significantly attenuated in presence of several antagonists (methylene blue and L-NAME) but the adrenergic blockers (prazosin and propranolol) had no significant effect in the ex-vivo studies. LC-MS identified thirty compounds where Proathocyanidin (11.54%), Syringic acid (7.30%), and 4-Hydroxybenzoic acid (6.19%) had the highest percentage abundance. In conclusion, the results obtained in this study partially validate the traditional uses of the tubers of this plant species as an antidiarrheal. These antidiarrheal effects are probably mediated via modulation of nitrous oxide pathway, voltage gated calcium channels, and muscarinic receptors.
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Affiliation(s)
- Washika Amos Mapesa
- Department of Medical Physiology, School of Medicine, University of Nairobi, Nairobi, Kenya
| | - Mwangi Peter Waweru
- Department of Medical Physiology, School of Medicine, University of Nairobi, Nairobi, Kenya
| | - Frederick Bukachi
- Department of Medical Physiology, School of Medicine, University of Nairobi, Nairobi, Kenya
| | - Kayaja David Wafula
- Department of Medical Physiology, School of Medicine, University of Nairobi, Nairobi, Kenya
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Centrifugal partition chromatography enables selective enrichment of trimeric and tetrameric proanthocyanidins for biomaterial development. J Chromatogr A 2017; 1535:55-62. [PMID: 29331224 DOI: 10.1016/j.chroma.2017.12.050] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2017] [Revised: 12/12/2017] [Accepted: 12/18/2017] [Indexed: 01/12/2023]
Abstract
Proanthocyanidins (PACs) find wide applications for human use including food, cosmetics, dietary supplements, and pharmaceuticals. The chemical complexity associated with PACs has triggered the development of various chromatographic techniques, with countercurrent separation (CCS) gaining in popularity. This study applied the recently developed DESIGNER (Depletion and Enrichment of Select Ingredients Generating Normalized Extract Resources) approach for the selective enrichment of trimeric and tetrameric PACs using centrifugal partition chromatography (CPC). This CPC method aims at developing PAC based biomaterials, particularly for their application in restoring and repairing dental hard tissue. A general separation scheme beginning with the depletion of polymeric PACs, followed by the removal of monomeric flavan-3-ols and a final enrichment step produced PAC trimer and tetramer enriched fractions. A successful application of this separation scheme is demonstrated for four polyphenol rich plant sources: grape seeds, pine bark, cinnamon bark, and cocoa seeds. Minor modifications to the generic DESIGNER CCS method were sufficient to accommodate the varying chemical complexities of the individual source materials. The step-wise enrichment of PAC trimers and tetramers was monitored using normal phase TLC and Diol-HPLC-UV analyses. CPC proved to be a reliable tool for the selective enrichment of medium size oligomeric PACs (OPACs). This method plays a key role in the development of dental biomaterials considering its reliability and reproducibility, as well as its scale-up capabilities for possible larger-scale manufacturing.
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Nariya MK, Kim JH, Xiong J, Kleindl PA, Hewarathna A, Fisher AC, Joshi SB, Schöneich C, Forrest ML, Middaugh CR, Volkin DB, Deeds EJ. Comparative Characterization of Crofelemer Samples Using Data Mining and Machine Learning Approaches With Analytical Stability Data Sets. J Pharm Sci 2017; 106:3270-3279. [PMID: 28743607 DOI: 10.1016/j.xphs.2017.07.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 07/12/2017] [Accepted: 07/18/2017] [Indexed: 01/05/2023]
Abstract
There is growing interest in generating physicochemical and biological analytical data sets to compare complex mixture drugs, for example, products from different manufacturers. In this work, we compare various crofelemer samples prepared from a single lot by filtration with varying molecular weight cutoffs combined with incubation for different times at different temperatures. The 2 preceding articles describe experimental data sets generated from analytical characterization of fractionated and degraded crofelemer samples. In this work, we use data mining techniques such as principal component analysis and mutual information scores to help visualize the data and determine discriminatory regions within these large data sets. The mutual information score identifies chemical signatures that differentiate crofelemer samples. These signatures, in many cases, would likely be missed by traditional data analysis tools. We also found that supervised learning classifiers robustly discriminate samples with around 99% classification accuracy, indicating that mathematical models of these physicochemical data sets are capable of identifying even subtle differences in crofelemer samples. Data mining and machine learning techniques can thus identify fingerprint-type attributes of complex mixture drugs that may be used for comparative characterization of products.
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Affiliation(s)
- Maulik K Nariya
- Department of Physics and Astronomy, University of Kansas, Lawrence, Kansas 66045
| | - Jae Hyun Kim
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, Kansas 66045
| | - Jian Xiong
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, Kansas 66045; Macromolecule and Vaccine Stabilization Center, University of Kansas, Lawrence, Kansas 66045
| | - Peter A Kleindl
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, Kansas 66045
| | - Asha Hewarathna
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, Kansas 66045
| | - Adam C Fisher
- Center for Drug Evaluation and Research, Office of Pharmaceutical Quality, U.S. Food and Drug Administration, Silver Spring, Maryland 20993
| | - Sangeeta B Joshi
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, Kansas 66045; Macromolecule and Vaccine Stabilization Center, University of Kansas, Lawrence, Kansas 66045
| | - Christian Schöneich
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, Kansas 66045
| | - M Laird Forrest
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, Kansas 66045
| | - C Russell Middaugh
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, Kansas 66045; Macromolecule and Vaccine Stabilization Center, University of Kansas, Lawrence, Kansas 66045
| | - David B Volkin
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, Kansas 66045; Macromolecule and Vaccine Stabilization Center, University of Kansas, Lawrence, Kansas 66045
| | - Eric J Deeds
- Department of Molecular Biosciences, University of Kansas, Lawrence, Kansas 66045; Center for Computational Biology, University of Kansas, Lawrence, Kansas 66045; Santa Fe Institute, Santa Fe, New Mexico 87501.
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Abstract
The main aim of this review article is to outline the factors linked to vulnerability of women to HIV infection and to understand the challenges and possible management of HIV among women. The review is a theoretical endeavour to understand women’s experiences of living with HIV. This review primarily focuses on studies in the Indian set-up, but to further substantiate the arguments and describe the relevant concepts it also takes into account literature from other cultures. On the basis of studies included in this article, it can be surmised that women are more susceptible to HIV due to cultural barriers, health vulnerabilities and social structures. They show less awareness about the treatment facilities, prevention strategies and perceived risk of infection. Women have to face numerous challenges after the infection, such as lack of social support, a higher level of stigma and discrimination, decreased quality of life, mental health issues and adverse coping. To prevent the spread of HIV among women as well as men, it is necessary to plan strategies which deal with empowerment of women, education and awareness regarding the vulnerabilities and knowledge and challenges of HIV infection. There is also a need to address the management of HIV among the infected and even those at risk. This article describes the possible interventions based on existing literature. The review also attempts to suggest certain future directions for the research.
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Affiliation(s)
- Anu Malik
- Research Scholar in Psychology, Department of Humanities and Social Sciences, Indian Institute of Technology, Kanpur, India
| | - Shikha Dixit
- Professor in Psychology, Department of Humanities and Social Sciences, Indian Institute of Technology, Kanpur, India
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Camilleri M, Sellin JH, Barrett KE. Pathophysiology, Evaluation, and Management of Chronic Watery Diarrhea. Gastroenterology 2017; 152:515-532.e2. [PMID: 27773805 PMCID: PMC5285476 DOI: 10.1053/j.gastro.2016.10.014] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Revised: 09/21/2016] [Accepted: 10/11/2016] [Indexed: 02/08/2023]
Abstract
Chronic watery diarrhea poses a diagnostic and therapeutic challenge and is often a disabling condition for patients. Although acute diarrhea is likely to be caused by infection, the causes of chronic diarrhea (>4 weeks in duration) are more elusive. We review the pathophysiology, diagnosis, and treatment of chronic diarrhea. Drawing on recent insights into the molecular mechanisms of intestinal epithelial transport and barrier function, we discuss how diarrhea can result from a decrease in luminal solute absorption, an increase in secretion, or both, as well as derangements in barrier properties. We also describe the various extraepithelial factors that activate diarrheal mechanisms. Finally, clinical evaluation and tests used in the assessment of patients presenting with chronic diarrhea are reviewed, and an algorithm guiding therapeutic decisions and pharmacotherapy is presented.
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Affiliation(s)
- Michael Camilleri
- Clinical Enteric Neuroscience Translational and Epidemiological Research, Division of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Rochester, Minnesota.
| | - Joseph H. Sellin
- Division of Gastroenterology, Department of Medicine, Baylor College of Medicine, Houston, TX
| | - Kim E. Barrett
- Division of Gastroenterology, Department of Medicine, University of California, San Diego, La Jolla, CA
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Moon C, Zhang W, Sundaram N, Yarlagadda S, Reddy VS, Arora K, Helmrath MA, Naren AP. Drug-induced secretory diarrhea: A role for CFTR. Pharmacol Res 2015; 102:107-112. [PMID: 26429773 DOI: 10.1016/j.phrs.2015.08.024] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Accepted: 08/31/2015] [Indexed: 12/29/2022]
Abstract
Many medications induce diarrhea as a side effect, which can be a major obstacle to therapeutic efficacy and also a life-threatening condition. Secretory diarrhea can be caused by excessive fluid secretion in the intestine under pathological conditions. The cAMP/cGMP-regulated cystic fibrosis transmembrane conductance regulator (CFTR) is the primary chloride channel at the apical membrane of intestinal epithelial cells and plays a major role in intestinal fluid secretion and homeostasis. CFTR forms macromolecular complexes at discreet microdomains at the plasma membrane, and its chloride channel function is regulated spatiotemporally through protein-protein interactions and cAMP/cGMP-mediated signaling. Drugs that perturb CFTR-containing macromolecular complexes in the intestinal epithelium and upregulate intracellular cAMP and/or cGMP levels can hyperactivate the CFTR channel, causing excessive fluid secretion and secretory diarrhea. Inhibition of CFTR chloride-channel activity may represent a novel approach to the management of drug-induced secretory diarrhea.
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Affiliation(s)
- Changsuk Moon
- Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Weiqiang Zhang
- Department of Physiology, University of Tennessee Health Science Center, Memphis, TN 38163, USA.,Department of Pediatrics, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Nambirajan Sundaram
- Department of Pediatric General and Thoracic Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Sunitha Yarlagadda
- Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Vadde Sudhakar Reddy
- Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Kavisha Arora
- Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Michael A Helmrath
- Department of Pediatric General and Thoracic Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA.,Department of General Surgery, University of Cincinnati, Cincinnati, OH 45229, USA
| | - Anjaparavanda P Naren
- Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
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Clay PG, Crutchley RD. Noninfectious Diarrhea in HIV Seropositive Individuals: a Review of Prevalence Rates, Etiology, and Management in the Era of Combination Antiretroviral Therapy. Infect Dis Ther 2014; 3:103-22. [PMID: 25388760 PMCID: PMC4269634 DOI: 10.1007/s40121-014-0047-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Indexed: 02/07/2023] Open
Abstract
Introduction Diarrhea poses a substantial burden for patients with human immunodeficiency virus (HIV), negatively impacting quality-of-life (QoL) and adherence to antiretroviral therapy. During the combination antiretroviral therapy (cART) era, as incidence of opportunistic infection as a cause of diarrhea decreased, incidence of noninfectious diarrhea (including diarrhea as an adverse event [AE] of cART and HIV enteropathy) increased proportionately. A literature search was conducted for information on prevalence, etiology, and treatment options for noninfectious diarrhea in patients with HIV. Results For marketed antiretroviral therapies, up to 28% of patients live with >4 loose or watery stools per day. The US Food and Drug Administration (FDA) does not require pharmaceutical manufacturers to include, within approved prescribing information, prevalence rates for all grades of diarrhea. Traditionally, noninfectious diarrhea management focused on avoiding use of diarrhea-associated cART; symptom management (nonpharmacologic and/or pharmacologic); and, as a last resort, changing cART. Examining the evidence upon which this approach is based reveals that most strategies rely upon anecdotal information and case reports. This review summarizes the literature and updates clinicians on the most recent options for management of noninfectious diarrhea in patients with HIV. Conclusion Diarrhea in patients with HIV is a significant unmet clinical need that contributes to worsening QoL and complicates medical management. Approaching management using a stepwise method of nonpharmacologic (diet), nonprescription (over-the-counter) and, finally, prescription agent changes (modification of cART or addition of an evidence-based antidiarrheal) appears reasonable, despite a lack of clear scientific evidence to support the initial two steps of this approach. If diet modifications, including psyllium and fiber introduction, fail to resolve noninfectious diarrhea in patients with HIV, loperamide followed by crofelemer should be considered. Clinicians are encouraged to review the most recent literature, not rely upon prescribing information. Continued vigilance by HIV providers to the presence of gastrointestinal AEs, even in patients taking the most recently approved antiretroviral agents, is warranted. Additional research is justified in identifying the etiology and management of HIV-associated diarrhea in patients on successful cART regimens. Electronic supplementary material The online version of this article (doi:10.1007/s40121-014-0047-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Patrick G Clay
- University of North Texas System College of Pharmacy, 3500 Camp Bowie Boulevard, RES-340E, Fort Worth, TX, 76107, USA.
| | - Rustin D Crutchley
- Department of Clinical Science and Administration in the University of Houston College of Pharmacy, Houston, TX, USA
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