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Joseph K, Aintabi D, Choi EYK, Berinstein JA. The Perfect Storm: An Unusual Cause of Intestinal Perforation in a Solid Organ Transplant Patient. ACG Case Rep J 2023; 10:e01035. [PMID: 37168501 PMCID: PMC10166337 DOI: 10.14309/crj.0000000000001035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 03/27/2023] [Indexed: 05/13/2023] Open
Abstract
Immunosuppressants are used to prevent rejection in transplant patients. Many of these medications commonly cause gastrointestinal (GI) symptoms. We present a 38-year-old kidney and pancreas transplant recipient who had severe ulceration throughout his GI tract leading to perforations of his stomach and cecum, despite early discontinuation of mycophenolate mofetil-the most likely culprit medication. The ongoing injury observed despite holding mycophenolate suggests a possible compounding effect of tacrolimus and everolimus. Both these agents are underrepresented causes of GI injury. This perfect storm of agents may have accounted for the severity and extensive presentation observed in our patient.
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Affiliation(s)
- Karan Joseph
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Michigan Medicine, Ann Arbor, MI
| | - Daniel Aintabi
- Department of Medicine, St. Joseph Mercy Ann Arbor Hospital, Ypsilanti, MI
| | | | - Jeffrey A. Berinstein
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Michigan Medicine, Ann Arbor, MI
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Truong D, Cherradi-Lamhamedi SE, Ludwig JA. Targeting the IGF/PI3K/mTOR Pathway and AXL/YAP1/TAZ pathways in Primary Bone Cancer. J Bone Oncol 2022; 33:100419. [PMID: 35251924 PMCID: PMC8892134 DOI: 10.1016/j.jbo.2022.100419] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 02/21/2022] [Accepted: 02/22/2022] [Indexed: 12/14/2022] Open
Abstract
Primary bone cancers (PBC) belong to the family of mesenchymal tumors classified based on their cellular origin, extracellular matrix, genetic regulation, and epigenetic modification. The three major PBC types, Ewing sarcoma, osteosarcoma, and chondrosarcoma, are frequently aggressive tumors, highly metastatic, and typically occur in children and young adults. Despite their distinct origins and pathogenesis, these sarcoma subtypes rely upon common signaling pathways to promote tumor progression, metastasis, and survival. The IGF/PI3K/mTOR and AXL/YAP/TAZ pathways, in particular, have gained significant attention recently given their ties to oncogenesis, cell fate and differentiation, metastasis, and drug resistance. Naturally, these pathways – and their protein constituents – have caught the eye of the pharmaceutical industry, and a wide array of small molecule inhibitors and antibody drug-conjugates have emerged. Here, we review how the IGF/PI3K/mTOR and AXL/YAP/TAZ pathways promote PBC and highlight the drug candidates under clinical trial investigation.
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Functional and structural analyses of novel Smith-Kingsmore Syndrome-Associated MTOR variants reveal potential new mechanisms and predictors of pathogenicity. PLoS Genet 2021; 17:e1009651. [PMID: 34197453 PMCID: PMC8279410 DOI: 10.1371/journal.pgen.1009651] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 07/14/2021] [Accepted: 06/08/2021] [Indexed: 12/31/2022] Open
Abstract
Smith-Kingsmore syndrome (SKS) is a rare neurodevelopmental disorder characterized by macrocephaly/megalencephaly, developmental delay, intellectual disability, hypotonia, and seizures. It is caused by dominant missense mutations in MTOR. The pathogenicity of novel variants in MTOR in patients with neurodevelopmental disorders can be difficult to determine and the mechanism by which variants cause disease remains poorly understood. We report 7 patients with SKS with 4 novel MTOR variants and describe their phenotypes. We perform in vitro functional analyses to confirm MTOR activation and interrogate disease mechanisms. We complete structural analyses to understand the 3D properties of pathogenic variants. We examine the accuracy of relative accessible surface area, a quantitative measure of amino acid side-chain accessibility, as a predictor of MTOR variant pathogenicity. We describe novel clinical features of patients with SKS. We confirm MTOR Complex 1 activation and identify MTOR Complex 2 activation as a new potential mechanism of disease in SKS. We find that pathogenic MTOR variants disproportionately cluster in hotspots in the core of the protein, where they disrupt alpha helix packing due to the insertion of bulky amino acid side chains. We find that relative accessible surface area is significantly lower for SKS-associated variants compared to benign variants. We expand the phenotype of SKS and demonstrate that additional pathways of activation may contribute to disease. Incorporating 3D properties of MTOR variants may help in pathogenicity classification. We hope these findings may contribute to improving the precision of care and therapeutic development for individuals with SKS. Smith-Kingsmore Syndrome is a rare disease caused by damage in a gene named MTOR that is associated with excessive growth of the head and brain, delays in development and deficits in intellectual functioning. We report 7 patients who have changes in MTOR that have never been reported before. We describe new medical findings in these patients that may be common in Smith-Kingsmore Syndrome more broadly. We then identify how these new gene changes impact the function of the MTOR protein and thus cell function downstream. Lastly, we show that changes in the gene that lie deep inside the 3D structure of the MTOR protein are more likely to cause disease than those changes that lie on the surface of the protein. We may be able to use the 3D properties of MTOR gene changes to predict if future changes we see are likely to cause disease or not.
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Pulito C, Cristaudo A, Porta CL, Zapperi S, Blandino G, Morrone A, Strano S. Oral mucositis: the hidden side of cancer therapy. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2020; 39:210. [PMID: 33028357 PMCID: PMC7542970 DOI: 10.1186/s13046-020-01715-7] [Citation(s) in RCA: 147] [Impact Index Per Article: 36.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 09/21/2020] [Indexed: 02/07/2023]
Abstract
Inflammation response of epithelial mucosa to chemo- radiotherapy cytotoxic effects leads to mucositis, a painful side effect of antineoplastic treatments. About 40% of the patients treated with chemotherapy develop mucositis; this percentage rises to about 90% for head and neck cancer patients (HNC) treated with both chemo- and radiotherapy. 19% of the latter will be hospitalized and will experience a delay in antineoplastic treatment for high-grade mucositis management, resulting in a reduction of the quality of life, a worse prognosis and an increase in patient management costs. Currently, several interventions and prevention guidelines are available, but their effectiveness is uncertain. This review comprehensively describes mucositis, debating the impact of standard chemo-radiotherapy and targeted therapy on mucositis development and pointing out the limits and the benefits of current mucositis treatment strategies and assessment guidelines. Moreover, the review critically examines the feasibility of the existing biomarkers to predict patient risk of developing oral mucositis and their role in early diagnosis. Despite the expression levels of some proteins involved in the inflammation response, such as TNF-α or IL-1β, partially correlate with mucositis process, their presence does not exclude others mucositis-independent inflammation events. This strongly suggests the need to discover biomarkers that specifically feature mucositis process development. Non-coding RNAs might hold this potential.
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Affiliation(s)
- Claudio Pulito
- Oncogenomic and Epigenetic Unit, IRCCS, Regina Elena National Cancer Institute, Rome, Italy
| | - Antonio Cristaudo
- STI/HIV Unit, San Gallicano Dermatological Institute IRCCS, Rome, Italy
| | - Caterina La Porta
- Center for Complexity and Biosystems, Department of Environmental Science and Policy, University of Milan, via Celoria 26, 20133, Milano, Italy.,CNR - Consiglio Nazionale delle Ricerche, Istituto di Biofisica, via Celoria 26, 20133, Milano, Italy
| | - Stefano Zapperi
- Center for Complexity and Biosystems, Department of Physics, University of Milan, Via Celoria 16, 20133, Milano, Italy.,CNR - Consiglio Nazionale delle Ricerche, Istituto di Chimica della Materia Condensata e di Tecnologie per l'Energia, Via R. Cozzi 53, 20125, Milano, Italy
| | - Giovanni Blandino
- Oncogenomic and Epigenetic Unit, IRCCS, Regina Elena National Cancer Institute, Rome, Italy
| | - Aldo Morrone
- Scientific Director Office, San Gallicano Institute, Rome, Italy
| | - Sabrina Strano
- SAFU Laboratory, Department of Research, Advanced Diagnostic, and Technological Innovation, IRCCS, Regina Elena National Cancer Institute, Via Elio Chianesi, 53, 00144, Rome, Italy.
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Booth L, Roberts JL, Spiegel S, Poklepovic A, Dent P. Fingolimod augments Pemetrexed killing of non-small cell lung cancer and overcomes resistance to ERBB inhibition. Cancer Biol Ther 2018; 20:597-607. [PMID: 30388910 DOI: 10.1080/15384047.2018.1538616] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Abstract
Overall, NSCLC has a poor 5-year survival and new therapeutic approaches are urgently needed. ERBB-addicted NSCLC that have become resistant to ERBB inhibitors are often refractory to additional therapeutic interventions. The sphingosine-1-phosphate receptor modulator fingolimod (FTY720), approved for the treatment of multiple sclerosis, synergized with the NSCLC therapeutic pemetrexed to kill NSCLC and ovarian cancer cells. This occurred in lung cancer cells expressing mutated K-RAS, mutated ERBB1, or in NSCLC cells resistant to afatinib (an ERBB1/2/4 inhibitor). This drug combination appeared to use overlapping and distinct mechanisms of killing in different cell lines. Activation of AMP-dependent kinase (AMPK) and reduced expression and inactivation of mTOR were associated with increased autophagosome and autolysosome formation. Downregulation of Beclin1 considerably reduced formation of autophagosomes and protected the cells from drug combination-induced killing without significantly altering autolysosome formation. Autophagy protein 5 (ATG5) knock down afforded greater protection against the combination of pemetrexed with fingolimod. Treatment of cells with the mTOR inhibitor everolimus markedly enhanced the lethality of pemetrexed plus fingolimod combination. Our data suggest that the combination of fingolimod with the established NSCLC/ovarian cancer drug pemetrexed should be explored as a new therapy.
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Affiliation(s)
- Laurence Booth
- a Departments of Biochemistry and Molecular Biology , Virginia Commonwealth University , Richmond , VA , USA
| | - Jane L Roberts
- a Departments of Biochemistry and Molecular Biology , Virginia Commonwealth University , Richmond , VA , USA
| | - Sarah Spiegel
- a Departments of Biochemistry and Molecular Biology , Virginia Commonwealth University , Richmond , VA , USA
| | | | - Paul Dent
- a Departments of Biochemistry and Molecular Biology , Virginia Commonwealth University , Richmond , VA , USA
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Chambers MS, Rugo HS, Litton JK, Meiller TF. Stomatitis associated with mammalian target of rapamycin inhibition: A review of pathogenesis, prevention, treatment, and clinical implications for oral practice in metastatic breast cancer. J Am Dent Assoc 2018; 149:291-298. [PMID: 29439772 DOI: 10.1016/j.adaj.2017.10.024] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Revised: 10/06/2017] [Accepted: 10/25/2017] [Indexed: 11/25/2022]
Abstract
BACKGROUND Patients with metastatic breast cancer may develop oral morbidities that result from therapeutic interventions. Mammalian target of rapamycin (mTOR) inhibitor-associated stomatitis (mIAS) is a common adverse event (AE), secondary to mTOR inhibitor therapy, that can have a negative impact on treatment adherence, quality of life, and health care costs. A multidisciplinary team approach is important to minimize mIAS and to maximize treatment benefits to patients with breast cancer. In this review, we discuss the pathophysiology, diagnosis, and natural history of mIAS. Current and new management strategies for the prevention and treatment of mIAS are described in the context of fostering a coordinated team care approach to optimizing patient care. TYPES OF STUDIES REVIEWED The authors conducted a PubMed search from 2007 through 2017 using the terms "stomatitis," "mIAS," "everolimus," "mTOR," "metastatic breast cancer," and "oral care." They selected articles published in peer-reviewed journals that reported controlled trials and evidence-based guidelines. RESULTS mIAS can be distinguished from mucositis caused by cytotoxic chemotherapy or radiotherapy on the basis of cause, clinical presentation, and treatment paradigms. Specific preventive and therapeutic management strategies can be implemented across the continuum of patient oral health care. PRACTICAL IMPLICATIONS Oral health care providers are on the frontline of oral health care for patients with metastatic breast cancer and are uniquely positioned to provide patient education, advocate accurate reporting of mIAS, and support early identification, monitoring, and prompt intervention to mitigate the severity and duration of this manageable, potentially dose-limiting AE.
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Cinausero M, Aprile G, Ermacora P, Basile D, Vitale MG, Fanotto V, Parisi G, Calvetti L, Sonis ST. New Frontiers in the Pathobiology and Treatment of Cancer Regimen-Related Mucosal Injury. Front Pharmacol 2017. [PMID: 28642709 PMCID: PMC5462992 DOI: 10.3389/fphar.2017.00354] [Citation(s) in RCA: 133] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Mucositis is a common complication of chemotherapy, radiotherapy and targeted agents. It often affects compliance to anticancer therapies as it frequently causes schedule delays, interruptions or discontinuations of treatment. Moreover, the economic impact related to the management of mucositis is topical and several estimations of additional hospital costs due to this clinical condition have been recently reported. The ability to determine risk factors for mucositis, to early detect its onset, to assess correctly the degree of this toxicity and to plan its multidisciplinary management are all key elements to guarantee the quality of life of patients and to avoid useless dose reduction or interruption of treatment. The pathogenesis of mucositis is multifactorial and it is classily subdivided into oral and gastrointestinal mucositis according to its anatomic presentation. Treatment and patients’ related factors might help in predicting the frequency and the potential degree of symptoms onset. Here we discuss about clinical presentation and pathogenesis of mucositis in relation to different kinds of treatments. Moreover, we focus on therapeutic and prevention strategies, describing past and present management according to international guidelines and the most promising new data about agents potentially able to further improve the treatment of mucositis in the next future.
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Affiliation(s)
- Marika Cinausero
- Department of Oncology, University and General HospitalUdine, Italy
| | - Giuseppe Aprile
- Department of Oncology, University and General HospitalUdine, Italy.,Department of Oncology, San Bortolo General HospitalVicenza, Italy
| | - Paola Ermacora
- Department of Oncology, University and General HospitalUdine, Italy
| | - Debora Basile
- Department of Oncology, University and General HospitalUdine, Italy
| | - Maria G Vitale
- Department of Oncology, University and General HospitalUdine, Italy
| | | | - Giuseppe Parisi
- Department of Oncology, University and General HospitalUdine, Italy
| | - Lorenzo Calvetti
- Department of Oncology, San Bortolo General HospitalVicenza, Italy
| | - Stephen T Sonis
- Divisions of Oral Medicine, Brigham and Women's Hospital, BostonMA, United States.,Dana-Farber Cancer InstituteBoston, MA, United States.,Biomodels LLC, WatertownMA, United States
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Mita M, Fu S, Piha-Paul SA, Janku F, Mita A, Natale R, Guo W, Zhao C, Kurzrock R, Naing A. Phase I trial of MEK 1/2 inhibitor pimasertib combined with mTOR inhibitor temsirolimus in patients with advanced solid tumors. Invest New Drugs 2017; 35:616-626. [PMID: 28194539 DOI: 10.1007/s10637-017-0442-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Accepted: 02/03/2017] [Indexed: 11/28/2022]
Abstract
Background Dual inhibition of activated MAPK and mTOR signaling pathways may enhance the antitumor efficacy of the MEK 1/2 inhibitor pimasertib and the mTOR inhibitor temsirolimus given in combination. Methods In this phase I study, patients with refractory advanced solid tumors (NCT01378377) received once-weekly temsirolimus plus once-daily oral pimasertib in 21-day cycles in a modified 3 + 3 dose-escalation design. The maximum tolerated dose (MTD) and recommended phase 2 dose (RP2D) of pimasertib in combination with temsirolimus, safety and pharmacokinetics (PK) were investigated. Results Of 33 patients evaluated, all experienced ≥1 treatment-emergent adverse event (TEAE) and 31 had treatment-related TEAEs, most frequently stomatitis and thrombocytopenia. TEAEs were reversible. No deaths were attributed to treatment. Nine patients had dose-limiting toxicities (stomatitis, thrombocytopenia, serum creatinine phosphokinase increase, visual impairment) and the MTD was determined as 45 mg/day pimasertib plus 25 mg/week temsirolimus. However, due to overlapping toxicities no further investigations were performed and the RP2D was not defined. PK profiles of both agents were not adversely affected. Seventeen patients (17/26 patients) had a best response of stable disease; five had stable disease lasting >12 weeks. Conclusions The RP2D was not defined and the pimasertib plus temsirolimus combination investigated did not warrant further study.
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Affiliation(s)
- Monica Mita
- Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA, 90048, USA
| | - Siqing Fu
- Department of Investigational Cancer Therapeutics, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX, 77030, USA
| | - Sarina Anne Piha-Paul
- Department of Investigational Cancer Therapeutics, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX, 77030, USA
| | - Filip Janku
- Department of Investigational Cancer Therapeutics, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX, 77030, USA
| | - Alain Mita
- Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA, 90048, USA
| | - Ronald Natale
- Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA, 90048, USA
| | - Wei Guo
- Global Biostatistics, EMD Serono Inc., Billerica, MA, 01821, USA
| | - Charles Zhao
- Clinical Oncology Early Development, EMD Serono Inc., Billerica, MA, 01821, USA
| | - Razelle Kurzrock
- Division of Hematology and Oncology, University of California San Diego (UCSD) School of Medicine and UCSD Moores Cancer Center, La Jolla, CA, 92093, USA
| | - Aung Naing
- Department of Investigational Cancer Therapeutics, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX, 77030, USA.
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Abdel-Rahman O, Fouad M. Rolapitant: a pooled analysis of its efficacy and safety in the prophylaxis of chemotherapy-induced nausea and vomiting. Future Oncol 2016; 12:871-9. [PMID: 26806790 DOI: 10.2217/fon.15.360] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND We conducted a pooled analysis of rolapitant-containing regimens versus control in the prophylaxis of chemotherapy-induced nausea and vomiting. METHODOLOGY Eligible studies included randomized studies evaluating rolapitant-containing regimens in the settings of highly emetogenic and moderately emetogenic chemotherapy. RESULTS The pooled relative risk for complete response in the overall phase was 1.23 (95% CI: 1.18-1.33; p < 0.00001), the pooled relative risk for no significant nausea in the overall phase was 1.17 (95% CI: 1.04-1.32; p = 0.008) and the pooled RR for no emesis in the overall phase was 1.24 (95% CI: 1.18-1.31; p < 0.00001). CONCLUSION Rolapitant-based regimens are associated with higher rates of complete response, no significant nausea and no emesis with highly/moderately emetogenic chemotherapy compared with control regimens.
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Affiliation(s)
- Omar Abdel-Rahman
- Clinical Oncology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Mona Fouad
- Medical Microbiology & Immunology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
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Abdel-Rahman O, ElHalawani H, Essam-Eldin S. S-1-based regimens and the risk of oral and gastrointestinal mucosal injury: a meta-analysis with comparison to other fluoropyrimidines. Expert Opin Drug Saf 2015; 15:5-20. [PMID: 26513339 DOI: 10.1517/14740338.2016.1105959] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND We performed a meta-analysis of the risk of oral and gastrointestinal (GI) mucosal injury associated with S-1-based regimens. PATIENTS AND METHODS Randomized phase II and III trials of patients with solid tumors on S-1; describing events of all-grade and high-grade stomatitis and diarrhea constituted the eligible studies. RESULTS After exclusion of ineligible studies, a total of 26 clinical trials were considered eligible for the meta-analysis. The odds ratio (OR) of all-grade and high-grade stomatitis for S-1 vs. non-fluoropyrimidine controls was 4.39 [95% CI: 1.05, 18.37; p = 0.04] and 5.64 [95% CI: 1.46, 21.77; p = 0.01], respectively; while the OR of all-grade and high-grade stomatitis for S-1 vs. infusional 5-fluorouracil (5-FU) control was -1.01 [95% CI: 0.22, 4.63; p = 0.99] and 0.32 [95% CI: 0.20, 0.49; p < 0.00001], respectively. The OR of all-grade and high-grade diarrhea for S-1 vs. non-fluoropyrimidine controls was 2.48 [95% CI: 2.12, 2.90; p < 0.00001] and 1.95 [95% CI: 1.29, 2.96; p = 0.002], respectively; while the OR of all-grade and high-grade diarrhea for S-1 vs. infusional 5-FU control was -1.03 [95% CI: 0.87, 1.22; p = 0.76] and 2.52 [95% CI: 1.80, 3.52; p < 0.00001], respectively. CONCLUSIONS Compared to non-fluoropyrimidine control, patients treated with S-1-based regimens have an increased risk of all-grade and high-grade stomatitis and diarrhea; while on the other hand, patients treated with infusional 5-FU have a greater risk of high-grade stomatitis and diarrhea compared to patients treated with S-1-based regimens.
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Affiliation(s)
- Omar Abdel-Rahman
- a Clinical Oncology Department, Faculty of Medicine , Ain Shams University , Cairo 11665 , Egypt
| | - Hesham ElHalawani
- a Clinical Oncology Department, Faculty of Medicine , Ain Shams University , Cairo 11665 , Egypt
| | - Shaimaa Essam-Eldin
- a Clinical Oncology Department, Faculty of Medicine , Ain Shams University , Cairo 11665 , Egypt
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Abdel-Rahman O, ElHalawani H, Fouad M. Risk of gastrointestinal complications in cancer patients treated with immune checkpoint inhibitors: a meta-analysis. Immunotherapy 2015; 7:1213-27. [PMID: 26513491 DOI: 10.2217/imt.15.87] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
AIM We performed a meta-analysis of the risk of selected gastrointestinal toxicities associated with immune checkpoint inhibitors. PATIENTS & METHODS Eligible studies included randomized trials of patients with solid tumors on ipilimumab, nivolumab, pembrolizumab, tremelimumab, pidilizumab and atezolizumab, describing events of diarrhea, vomiting or colitis. RESULTS After exclusion of ineligible studies, a total of ten clinical trials were considered eligible for the meta-analysis. The relative risk of all-grade diarrhea, vomiting and colitis was 1.64 (95% CI: 1.19-2.26; p = 0.002), 0.72 (95% CI: 0.49-1.07; p = 0.1), 10.35 (95% CI: 5.78-18.53; p < 0.00001), respectively. CONCLUSION Our meta-analysis has demonstrated that immune checkpoint inhibitors are associated with a significantly increased risk of all grade and high-grade colitis.
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Affiliation(s)
- Omar Abdel-Rahman
- Clinical Oncology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Hesham ElHalawani
- Clinical Oncology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Mona Fouad
- Medical Microbiology & Immunology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
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