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Zheng S, Zhang H, Hu B, Zhou J, Wen L, Li M. A case of acute myocarditis induced by PD-1 inhibitor (sintilimab) in the treatment of large cell neuroendocrine carcinoma. Heliyon 2023; 9:e16874. [PMID: 37342584 PMCID: PMC10277459 DOI: 10.1016/j.heliyon.2023.e16874] [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: 03/18/2023] [Revised: 05/30/2023] [Accepted: 05/31/2023] [Indexed: 06/23/2023] Open
Abstract
The combination of Sintilimab with pemetrexed/platinum has become the first-line treatment for non-squamous non-small-cell lung carcinoma (NSCLC). Here, we report a patient with metastatic large cell neuroendocrine carcinoma (LCNEC) treated with Sintilimab for five cycles who developed shortness of breath after activity. The level of creatine kinase (CK), creatine kinase-MB (CK-MB) and cardiac troponin T (cTnT) were significantly increased. The cardiac MR suggested that heart function was slightly decreased. Considering that the patient did not take any illicit drugs, without history of autoimmune disease, coronary heart disease, arrhythmia, or chronic heart failure, we diagnosed the patient with Sintilimab-induced myocarditis. The symptoms alleviated after rapid use of glucocorticoids. Myocarditis is a rare immune-related adverse events (irAEs), especially myocarditis induced by programmed cell death receptor-1 (PD-1) inhibitor in the treatment of LCNEC.
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Li LJ, Chong Q, Wang L, Cher GB, Soo RA. Different treatment efficacies and side effects of cytotoxic chemotherapy. J Thorac Dis 2020; 12:3785-3795. [PMID: 32802458 PMCID: PMC7399437 DOI: 10.21037/jtd.2019.08.63] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Differences in efficacy and toxicity between Asian and Caucasian patients with lung cancer treated with systemic chemotherapy is increasingly recognised. This is a major concern in the clinical setting as it influences outcomes and affect international harmonization of drug development. Interindividual variability of pharmacokinetics, where different genetic polymorphisms affect drug metabolism, transport, and receptor binding may account for the ethnic differences. Treatment efficacy and outcomes may also be explained by differences in diet and lifestyle, access to healthcare, cultural barriers and environmental exposure. Efforts made to design prospective studies investigating ethnic specific determinants to systemic therapy and individualise lung cancer treatment based on genetic makeup of patient are important.
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Affiliation(s)
- Low-Jia Li
- Department of Haematology-Oncology, National University Hospital, Singapore, Singapore
| | - Qingyun Chong
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
| | - Lingzhi Wang
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore.,Department of Pharmacology, National University of Singapore, Singapore, Singapore
| | - Goh Boon Cher
- Department of Haematology-Oncology, National University Hospital, Singapore, Singapore.,Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore.,Department of Pharmacology, National University of Singapore, Singapore, Singapore
| | - Ross A Soo
- Department of Haematology-Oncology, National University Hospital, Singapore, Singapore
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Jabir RS, Ho GF, Annuar MABA, Stanslas J. Association of Allelic Interaction of Single Nucleotide Polymorphisms of Influx and Efflux Transporters Genes With Nonhematologic Adverse Events of Docetaxel in Breast Cancer Patients. Clin Breast Cancer 2018; 18:e1173-e1179. [PMID: 29885788 DOI: 10.1016/j.clbc.2018.04.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Revised: 02/19/2018] [Accepted: 04/23/2018] [Indexed: 12/11/2022]
Abstract
PURPOSE Nonhematologic adverse events (AEs) of docetaxel constitute an extra burden in the treatment of cancer patients and necessitate either a dose reduction or an outright switch of docetaxel for other regimens. These AEs are frequently associated with genetic polymorphisms of genes encoding for proteins involved docetaxel disposition. Therefore, we investigated that association in Malaysian breast cancer patients. MATERIALS AND METHODS A total of 110 Malaysian breast cancer patients were enrolled in the present study, and their blood samples were investigated for different single nucleotide polymorphisms using polymerase chain reaction restriction fragment length polymorphism. AEs were evaluated using the Common Terminology Criteria for Adverse Events, version 4.0. RESULTS Fatigue, nausea, oral mucositis, and vomiting were the most common nonhematologic AEs. Rash was associated with heterozygous and mutant genotypes of ABCB1 3435C>T (P < .05). Moreover, patients carrying the GG genotype of ABCB1 2677G>A/T reported more fatigue than those carrying the heterozygous genotype GA (P < .05). The presence of ABCB1 3435-T, ABCC2 3972-C, ABCC2 1249-G, and ABCB1 2677-G alleles was significantly associated with nausea and oral mucositis. The coexistence of ABCB1 3435-C, ABCC2 3972-C, ABCC2 1249-G, and ABCB1 2677-A was significantly associated with vomiting (P < .05). CONCLUSION The prevalence of nonhematologic AEs in breast cancer patients treated with docetaxel has been relatively high. The variant allele of ABCB1 3435C>T polymorphism could be a potential predictive biomarker of docetaxel-induced rash, and homozygous wild-type ABCB1 2677G>A/T might predict for a greater risk of fatigue. In addition, the concurrent presence of specific alleles could be predictive of vomiting, nausea, and oral mucositis.
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Affiliation(s)
- Rafid Salim Jabir
- Pharmacotherapeutics Unit, Department of Medicine, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Selangor, Malaysia
| | - Gwo Fuang Ho
- Clinical Oncology Unit, University Malaya Medical Centre, Kuala Lumpur, Malaysia
| | - Muhammad Azrif Bin Ahmad Annuar
- Department of Radiotherapy and Oncology, Universiti Kebangsaan Malaysia Medical Centre, Jalan Yaacob Latif, Kuala Lumpur, Malaysia
| | - Johnson Stanslas
- Pharmacotherapeutics Unit, Department of Medicine, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Selangor, Malaysia.
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Jabir RS, Ho GF, Annuar MABA, Stanslas J. Plasma alpha-1-acid glycoprotein as a potential predictive biomarker for non-haematological adverse events of docetaxel in breast cancer patients. Biomarkers 2017; 23:142-146. [PMID: 28554261 DOI: 10.1080/1354750x.2017.1334152] [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] [Indexed: 10/19/2022]
Abstract
CONTEXT Rash and oral mucositis are major non-haematological adverse events (AEs) of docetaxel, in addition to fatigue, nausea, vomiting and diarrhoea, which restrict the use of the drug in cancer therapy. Alpha-1-acid glycoprotein (AAG) is an acute phase reactant glycoprotein and is a primary carrier of docetaxel in the blood. Docetaxel has extensive binding (>98%) to plasma proteins such as AAG, lipoproteins and albumin. OBJECTIVE To study the association between plasma AAG level and non-haematological AEs of docetaxel in Malaysian breast cancer patients of three major ethnic groups (Malays, Chinese and Indians). MATERIALS AND METHODS One hundred and twenty Malaysian breast cancer patients receiving docetaxel as single agent chemotherapy were investigated for AAG plasma level using enzyme-linked immunosorbent assay technique. Toxicity assessment was determined using Common Terminology Criteria of Adverse Events v4.0. The association between AAG and toxicity were then established. RESULTS There was interethnic variation of plasma AAG level; it was 182 ± 85 mg/dl in Chinese, 237 ± 94 mg/dl in Malays and 240 ± 83 mg/dl in Indians. It was found that low plasma levels of AAG were significantly associated with oral mucositis and rash. CONCLUSIONS This study proposes plasma AAG as a potential predictive biomarker of docetaxel non-haematological AEs namely oral mucositis and rash.
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Affiliation(s)
- Rafid Salim Jabir
- a Pharmacotherapeutics Unit, Department of Medicine, Faculty of Medicine and Health Sciences , Universiti Putra Malaysia , Serdang , Selangor , Malaysia
| | - Gwo Fuang Ho
- b Clinical Oncology Unit , University Malaya Medical Centre , Kuala Lumpur , Malaysia
| | - Muhammad Azrif Bin Ahmad Annuar
- c Radiotherapy & Oncology , Universiti Kebangsaan Malaysia Medical Centre, Jalan Yaacob Latif, Bandar Tun Razak , Kuala Lumpur , Malaysia
| | - Johnson Stanslas
- a Pharmacotherapeutics Unit, Department of Medicine, Faculty of Medicine and Health Sciences , Universiti Putra Malaysia , Serdang , Selangor , Malaysia
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Park K, Kim JH, Cho EK, Kang JH, Shih JY, Zimmermann AH, Lee P, Alexandris E, Puri T, Orlando M. East Asian Subgroup Analysis of a Randomized, Double-Blind, Phase 3 Study of Docetaxel and Ramucirumab Versus Docetaxel and Placebo in the Treatment of Stage IV Non-small Cell Lung Cancer Following Disease Progression after One Prior Platinum-Based Therapy (REVEL). Cancer Res Treat 2016; 48:1177-1186. [PMID: 26910471 PMCID: PMC5080808 DOI: 10.4143/crt.2015.401] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Accepted: 01/26/2016] [Indexed: 12/31/2022] Open
Abstract
PURPOSE REVEL demonstrated improved overall survival (OS), progression-free survival (PFS), and objective response rate (ORR) with docetaxel+ramucirumab versus docetaxel+placebo in 1,253 intent-to-treat (ITT) stage IV non-small cell lung cancer patients with disease progression following platinum-based chemotherapy. Results from the East Asian subgroup analysis are reported. MATERIALS AND METHODS Subgroup analyses were performed in the East Asian ITT population (n=89). Kaplan-Meier analysis and Cox proportional hazards regression were performed for OS and PFS, and the Cochran-Mantel-Haenszel test was performed for response rate. RESULTS In docetaxel+ramucirumab (n=43) versus docetaxel+placebo (n=46), median OS was 15.44 months versus 10.17 months (hazard ratio [HR], 0.762; 95% confidence interval [CI], 0.444 to 1.307), median PFS was 4.88 months versus 2.79 months (HR, 0.658; 95% CI, 0.408 to 1.060), and ORR was 25.6% (95% CI, 13.5 to 41.2) versus 8.7% (95% CI, 2.4 to 20.8). Due to increased incidence of neutropenia and febrile neutropenia in East Asian patients, starting dose of docetaxel was reduced for newly enrolled East Asian patients (75 to 60 mg/m2, n=24). In docetaxel+ramucirumab versus docetaxel+placebo, incidence of neutropenia was 84.4% versus 72.7% (75 mg/m2) and 54.5% versus 38.5% (60 mg/m2). Incidence of febrile neutropenia was 43.8% versus 12.1% (75 mg/m2) and 0% versus 7.7% (60 mg/m2). CONCLUSION Results of this subgroup analysis showed a trend favoring ramucirumab+docetaxel for median OS, PFS, and improved ORR in East Asian patients, consistent with ITT population results. Reduction of starting dose of docetaxel in East Asian patients was associated with improved safety.
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Affiliation(s)
- Keunchil Park
- Division of Hematology-Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Joo-Hang Kim
- Department of Internal Medicine, CHA Bundang Medical Center, CHA University, Seongnam, Korea
| | - Eun Kyung Cho
- Division of Hematology, Department of Internal Medicine, Gachon University Gil Hospital, Incheon, Korea
| | - Jin-Hyoung Kang
- Department of Medical Oncology, College of Medicine, The Catholic University of Korea, St. Mary’s Hospital, Seoul, Korea
| | - Jin-Yuan Shih
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | | | - Pablo Lee
- Eli Lilly and Company, Indianapolis, IN, USA
| | | | - Tarun Puri
- Eli Lilly and Company, Gurgaon, Haryana, India
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Race and ethnicity in cancer therapy: what have we learned? Clin Pharmacol Ther 2014; 95:403-12. [PMID: 24419564 DOI: 10.1038/clpt.2014.5] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2014] [Accepted: 01/06/2014] [Indexed: 12/13/2022]
Abstract
Racial and ethnic disparities in the pathogenesis of common malignancies and outcomes from treatment remain a major health concern. Factors attributed to these disparities include differences in lifestyle, environment, genetics, and tumor biology. As we strive to personalize cancer therapy, it will be imperative that we understand the relative contributions of each factor so that we may apply this knowledge in choosing the best treatment for each individual, regardless of his or her racial or ethnic heritage.
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Yano R, Konno A, Watanabe K, Tsukamoto H, Kayano Y, Ohnaka H, Goto N, Nakamura T, Masada M. Pharmacoethnicity of docetaxel-induced severe neutropenia: integrated analysis of published phase II and III trials. Int J Clin Oncol 2011; 18:96-104. [PMID: 22095245 DOI: 10.1007/s10147-011-0349-5] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2011] [Accepted: 10/31/2011] [Indexed: 11/25/2022]
Abstract
BACKGROUND Ethnic differences in drug susceptibility and toxicity are a major concern, not only in drug development but also in the clinical setting. We review the toxicity profiles of docetaxel according to dose and ethnicity. METHODS We analyzed phase II and III clinical trials that included a once-every-3-weeks single-agent docetaxel arm. Logistic regression analysis was applied to identify the significant variables affecting the reported incidence of docetaxel-induced severe neutropenia. RESULTS Multivariate logistic regression analysis identified studies conducted in Asia [odds ratio (OR) 19.0; 95% confidence interval (95% CI) 3.64-99.0] and docetaxel dose (OR 1.08; 95% CI 1.03-1.13) as independent variables for the incidence of grade 3/4 neutropenia. CONCLUSIONS There is a significant difference in the incidence of docetaxel-induced severe neutropenia between Asian and non-Asian clinical studies. Physicians and pharmacists should consider ethnic diversity in docetaxel toxicity when interpreting the results of clinical trials.
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Affiliation(s)
- Ryoichi Yano
- Department of Pharmacy, University of Fukui Hospital, 23-3 Matsuokashimoaizuki, Eiheiji-cho, Yoshida-gun, Fukui, 910-1193, Japan.
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Bourdeanu L, Wong SF. Supporting Asian patients with metastatic breast cancer during ixabepilone therapy. Expert Opin Drug Saf 2010; 9:383-96. [DOI: 10.1517/14740331003592082] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Laura Bourdeanu
- City of Hope, Department of Medical Oncology & Therapeutics Research, 1500 East Duarte Road, Duarte, CA 91010-3000, USA ;
| | - Siu-Fun Wong
- Western University of Health Sciences, College of Pharmacy, 309 East Second Street, Pomona, CA 91766-1854, USA
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Phase II study of a biweekly schedule of docetaxel and cisplatin in patients with metastatic non-small cell lung cancer. Lung Cancer 2009; 69:94-8. [PMID: 19796840 DOI: 10.1016/j.lungcan.2009.09.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2009] [Revised: 09/03/2009] [Accepted: 09/08/2009] [Indexed: 11/21/2022]
Abstract
PURPOSE We investigated the efficacy and toxicity of a biweekly schedule of docetaxel and cisplatin in patients with metastatic non-small cell lung cancer (NSCLC). METHODS In this study, 48 patients with previously untreated metastatic NSCLC were given combination chemotherapy consisting of docetaxel 40 mg/m(2) and cisplatin 40 mg/m(2); both drugs were given biweekly, on days 1 and 15, every 4 weeks. RESULTS A partial response and stable disease were observed in 25 patients (52.1%, 95% CI: 38.7-66.9%) and ten patients (20.8%), respectively. The overall median survival was 14.0 months (95% CI: 7.10-20.9 months). There was no treatment-related mortality. The major toxicity was grade 2 asthenia (35.4%). Grade 4 neutropenia was observed in two patients (4.2%), as was grade 3 infection (4.2%). CONCLUSIONS As a front-line chemotherapy in an outpatient setting for patients with metastatic NSCLC, the biweekly schedule of docetaxel and cisplatin showed effective antitumor activity with a marked reduction in hematologic toxicity, comparable to the results of previous studies using 3-week or weekly schedules. Further randomized studies are needed before this can be accepted as a standard schedule.
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Khoo KS, Manzoor Zaidi SH, Srimuninnimit V, Song S, Nair R, Ngelangel CA, Bustam A, Reece WHH, Lehnert M. Gemcitabine and split-dose paclitaxel or docetaxel in metastatic breast cancer: A randomised phase II study. Eur J Cancer 2006; 42:1797-806. [PMID: 16846734 DOI: 10.1016/j.ejca.2006.05.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2006] [Revised: 05/03/2006] [Accepted: 05/05/2006] [Indexed: 11/21/2022]
Abstract
PURPOSE The purpose was to evaluate the activity and toxicity of split-dose paclitaxel or docetaxel in combination with gemcitabine in patients with metastatic breast cancer (MBC) who had previously received anthracyclines. PATIENTS AND METHODS A total of 210 patients were randomly assigned to one of three treatment arms: gemcitabine 1,250 mg/m(2) Days 1 and 8 and paclitaxel 175 mg/m(2) as a 3-h infusion on Day 1 (GP1); gemcitabine 1,000 mg/m(2) Days 1 and 8 and paclitaxel 100 mg/m(2) as a 1-h infusion on Days 1 and 8 (GP2); gemcitabine 1,000 mg/m(2) Days 1 and 8 and docetaxel 40 mg/m(2) as a 1-h infusion on Days 1 and 8 (GD). Cycles were repeated every 3 weeks. RESULTS For the 204 patients evaluable for response assessment, the response rates were 48.6% for GP1, 52.2% for GP2, and 52.3% for GD. Median response duration, time to treatment failure, and time to progression (TTP) were similar in each arm. Median TTP for GP1, GP2 and GD was 7.5, 7.0 and 7.4 months, respectively. For the 208 patients evaluable for safety, the most common grade 3/4 toxicity for each regimen was neutropaenia, with 64%, 57%, and 68% for GP1, GP2, and GD, respectively. Grade 4 neutropaenia, grade 3/4 anaemia, febrile neutropaenia, and diarrhoea were more common in the docetaxel arm, as was the use of intravenous antibiotics and blood transfusions. CONCLUSION The study confirmed the high activity of gemcitabine-taxane combinations in MBC. Split-dose paclitaxel had similar activity and toxicity to the 3-weekly administration. The split-dose docetaxel regimen had similar activity to the paclitaxel combinations though associated with higher toxicity.
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Lai CL, Tsai CM, Chiu CH, Wang GS, Su WJ, Chen YM, Perng RP. Phase II Randomized Trial of Tri-weekly Versus Days 1 and 8 Weekly Docetaxel as a Second-line Treatment of Advanced Non-small Cell Lung Cancer. Jpn J Clin Oncol 2005; 35:700-6. [PMID: 16303792 DOI: 10.1093/jjco/hyi191] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND For orientals, titrating doses of docetaxel (60-66 mg/m(2)) have shown equal effectiveness and fewer side effects as a second-line chemotherapy for patients with advanced non-small cell lung cancer (NSCLC). Under such doses, there were no comparative data between classic tri-weekly and Days 1 and 8 weekly schedules. METHODS This Phase II randomized prospective study was designed to compare the toxicity profile, efficacy and quality-of-life (QOL) between these two schedules of docetaxel in the treatment of previously treated patients with advanced NSCLC. Fifty patients were randomized to docetaxel arm A (66 mg/m(2) Day 1) and B (33 mg/m(2) Days 1 and 8) given every 3 weeks. RESULTS The overall response rates (ORRs) were 12 and 24% in arm A and B, respectively (P = 0.46), and disease control rates were 52 and 48%. The median time-to-progression (TTP) was 11.3 and 12.7 weeks and median survivals were 33.4 and 27.6 weeks, respectively. Both arms have same 1 year (36%) and 2 year survivals (12%). Arm A had significantly higher neutropenia but less compromised QOL. In this study, the response of second-line chemotherapy was significantly better in the group that was response to front-line chemotherapy (P = 0.032). CONCLUSIONS While Days 1 and 8 weekly docetaxel schedules show higher ORR and less hematological toxicity, there is no advantage to tri-week schedule in terms of TTP and survival, but more compromised QOL.
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Affiliation(s)
- Chun-Liang Lai
- Pulmonary Section, Department of Internal Medicine, Buddhist Dalin Tzu Chi General Hospital, Chiayi, Taiwan
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Abstract
OBJECTIVE To report 2 cases of hypersensitivity reactions associated with oxaliplatin treatment in Asian patients. CASE SUMMARIES A 33-year-old Chinese woman received adjuvant oxaliplatin in combination with fluorouracil and leucovorin. Shortly during her sixth infusion, she developed a severe hypersensitivity reaction. Despite prophylactic measures, she developed another reaction of similar severity during her subsequent infusion and was not further rechallenged with oxaliplatin. The second case involved a 45-year-old Malay woman who received oxaliplatin, fluorouracil, and leucovorin for metastatic colorectal cancer. Shortly during her ninth infusion, she developed a mild hypersensitivity reaction. With prophylactic measures, she developed less marked reactions with her subsequent 3 infusions. DISCUSSION Hypersensitivity reactions to oxaliplatin have been reported to be between 12% and 16% in the Western population. As of April 20, 2005, there are only 2 previously published reports of hypersensitivity reactions to oxaliplatin in 6 Asian patients. The incidence rates of such reactions in different Asian ethnic groups could vary. The cumulative dose, time of exposure to oxaliplatin, and clinical features were variable and unpredictable in all of the reported Asian patients who developed hypersensitivity reactions. An objective causality assessment using the Naranjo probability scale revealed that oxaliplatin was the highly probable cause of hypersensitivity in the 2 Asian patients reported by our center. CONCLUSIONS Patients who develop mild to moderate reactions can be rechallenged with the drug administered as a slow infusion with prophylactic measures. Desensitization may allow patients who experience severe hypersensitivity reactions to oxaliplatin to further receive effective therapy for their colorectal cancer.
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Affiliation(s)
- Christina V T Ng
- Department of Medicine, Division of Medical Oncology, University Malaya Medical Center, Jalan Universiti, Lembah Pantai 59100, Kuala Lumpur, Malaysia.
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Hsuen Lim E, Seng Cheong Lim R, Seng Wu T, Loong Kong H. Oxaliplatin/fluorouracil/leucovorin in advanced colorectal carcinoma: an asian experience. Ann Pharmacother 2004; 37:1909-12. [PMID: 14632600 DOI: 10.1345/aph.1d153] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND Oxaliplatin/fluorouracil/leucovorin (FOLFOX4) is an effective and generally well-tolerated regimen in Western studies of metastatic colorectal carcinoma. OBJECTIVE To evaluate the objective tumor responses and toxicities of the FOLFOX4 regimen in a predominantly Chinese population with advanced colorectal carcinoma in Singapore. METHODS Forty-seven consecutive patients were enrolled in a retrospective study between March 1998 and December 2001. FOLFOX4 was first-line treatment in 36% of these patients, second-line in 36%, third-line in 17%, and fourth-line in 11%. Tumor responses were assessed radiologically, and toxicities were graded by the National Cancer Institute common toxicity system. RESULTS The objective response rate (all partial responses) was 45%, and stable disease was achieved in 35% of the patients. There were no deaths due to toxicity. Mild to moderate peripheral sensory neuropathy affected half of the patients, with 1 report of cold exacerbation in this tropical series. The rate of hypersensitivity reactions to oxaliplatin was 11%, and they usually occurred late in the treatment course. CONCLUSIONS FOLFOX4 has good efficacy in metastatic colorectal carcinoma in our local population, but the rate of hypersensitivity reactions to oxaliplatin was high.
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Affiliation(s)
- Elaine Hsuen Lim
- Department of Haematology/Oncology, National University Hospital, Singapore.
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Goh BC, Lee SC, Wang LZ, Fan L, Guo JY, Lamba J, Schuetz E, Lim R, Lim HL, Ong AB, Lee HS. Explaining interindividual variability of docetaxel pharmacokinetics and pharmacodynamics in Asians through phenotyping and genotyping strategies. J Clin Oncol 2002; 20:3683-90. [PMID: 12202670 DOI: 10.1200/jco.2002.01.025] [Citation(s) in RCA: 208] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
PURPOSE To explain the variability of docetaxel pharmacokinetics through study of CYP3A phenotype and genotype, and MDR1 genotype. PATIENTS AND METHODS We studied the pharmacokinetics and pharmacodynamics of docetaxel in patients in whom it was indicated and who had not received known CYP3A4 substrates. Midazolam was administered intravenously to these patients at least 2 days before docetaxel treatment, and systemic clearances of both drugs were correlated. Patients were characterized for polymorphisms in the CYP3A4 promoter region, CYP3A5, and the C3435T polymorphism of MDR1. RESULTS Thirty-two patients were enrolled, of whom 31 had full pharmacokinetic data sets. Docetaxel clearance correlated with midazolam clearance, body-surface area, serum albumin, and performance status. Docetaxel and midazolam clearances were normally distributed. In multiple linear regression analyses, midazolam clearance and performance status were the only significant covariates of docetaxel clearance, and the area under the curve of docetaxel, serum levels of alpha-1-acid glycoprotein, and ALT were significant predictors of nadir neutrophil count. No polymorphisms were detected in the 5' regulatory region of CYP3A4. Nine patients of 25 studied were homozygous for the CYP3A5*3 genotype, and had lower mean clearance of midazolam but not docetaxel. The T/T genotype at the C3435T of MDR1, which is associated with reduced P-glycoprotein function, was found in eight of 27 patients. CONCLUSION Midazolam may be used as a probe drug for CYP3A activity to predict docetaxel clearances, hence reducing interindividual variability. Homozygotes for CYP3A5*3 and C3435T of MDR1 are common in our population, and their effects on pharmacokinetics of relevant substrates should be studied further.
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Affiliation(s)
- Boon-Cher Goh
- Department of Hematology-Oncology, National University Hospital, Singapore.
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Abstract
The treatment options for unresectable stage III NSCLC include definitive RT, chemotherapy, combined chemoradiotherapy, or supportive care. Compared with radiation alone or chemotherapy alone, the combination of chemotherapy and standard RT confers a modest survival benefit at the cost of increased toxicity for patients with an excellent performance status. For metastatic disease, combination chemotherapy--in particular, platinum-based regimens--improves symptom control and survival. Newer chemotherapeutic agents with higher response rates and favorable toxicity profiles are improving outcome even for the elderly and debilitated patients and those refractory to first-line chemotherapy. Evolving understanding of the molecular events in tumorigenesis is uncovering a host of promising targets for mechanism-based therapy. Many of these novel target modulators likely will require combination with conventional chemotherapy for optimal results.
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Affiliation(s)
- Tracy E Kim
- Department of Internal Medicine, Section of Medical Oncology, Yale Cancer Center, Yale University School of Medicine, New Haven, Connecticut, USA
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