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Suo J, Zhong X, He P, Zheng H, Tian T, Yan X, Luo T. A Retrospective Analysis of the Effect of Irinotecan-Based Regimens in Patients With Metastatic Breast Cancer Previously Treated With Anthracyclines and Taxanes. Front Oncol 2021; 11:654974. [PMID: 34881172 PMCID: PMC8645637 DOI: 10.3389/fonc.2021.654974] [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: 01/18/2021] [Accepted: 11/01/2021] [Indexed: 02/05/2023] Open
Abstract
Background At present, patients with metastatic breast cancer (MBC) have few treatment options after receiving anthracyclines and taxanes. Studies have shown that irinotecan has modest systemic activity in some patients previously treated with anthracyclines and taxanes. This study aimed to evaluate the efficacy of irinotecan-based chemotherapy for breast cancer patients in a metastatic setting. Methods We retrospectively collected the clinical information and survival data of 51 patients with MBC who received irinotecan at West China Hospital of Sichuan University. The primary endpoints were the progression free survival (PFS) and overall survival (OS), and the secondary endpoint was the objective response rate (ORR). To minimize potential confounding factors, we matched 51 patients who received third-line chemotherapy without irinotecan through propensity score matching (PSM) based on age, hormone receptor (HR), and human epidermal growth factor receptor 2 (HER2), compared their OS and PFS rates to those treated with irinotecan. Results From July 2012 to October 2020, 51 patients were treated with an irinotecan-containing regimen. The median number of previous treatment lines was 4, and a median of two previous chemotherapy cycles (ranging from 1–14 cycles) were given in a salvage line setting. The ORR was 15.7%, and the disease control rate (DCR) was 37.3%. For the irinotecan group, the median PFS was 3.2 months (95% CI 2.7–3.7), while the median OS was 33.1 months (95% CI 27.9–38.3). Univariate analysis results suggested that irinotecan could improve PFS in patients with visceral metastasis (P=0.031), which was 0.7 months longer than patients without visceral metastasis (3.5 months vs. 2.8 months). Compared to the patients who received third-line non-irinotecan chemotherapy, the irinotecan group showed a longer trend of PFS without statistical significance (3.2 months vs 2.1 months, P = 0.052). Similarly, the OS of the irinotecan group was longer than the third-line survival without irinotecan, but it was not statistically significant (33.1 months vs 18.0 months, P = 0.072). Conclusions For MBC patients who were previously treated with anthracyclines and/or taxanes, an irinotecan-containing regimen achieved moderate objective response and showed a trend of survival benefit, which deserves further study.
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Affiliation(s)
- Jiaojiao Suo
- Department of Head, Neck and Mammary Gland Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Xiaorong Zhong
- Department of Head, Neck and Mammary Gland Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, China.,Laboratory of Molecular Diagnosis of Cancer, Clinical Research Center for Breast, West China Hospital, Sichuan University, Chengdu, China
| | - Ping He
- Department of Head, Neck and Mammary Gland Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, China.,Laboratory of Molecular Diagnosis of Cancer, Clinical Research Center for Breast, West China Hospital, Sichuan University, Chengdu, China
| | - Hong Zheng
- Department of Head, Neck and Mammary Gland Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, China.,Laboratory of Molecular Diagnosis of Cancer, Clinical Research Center for Breast, West China Hospital, Sichuan University, Chengdu, China
| | - Tinglun Tian
- Department of Head, Neck and Mammary Gland Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, China.,Laboratory of Molecular Diagnosis of Cancer, Clinical Research Center for Breast, West China Hospital, Sichuan University, Chengdu, China
| | - Xi Yan
- Department of Head, Neck and Mammary Gland Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, China.,Laboratory of Molecular Diagnosis of Cancer, Clinical Research Center for Breast, West China Hospital, Sichuan University, Chengdu, China
| | - Ting Luo
- Department of Head, Neck and Mammary Gland Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, China.,Laboratory of Molecular Diagnosis of Cancer, Clinical Research Center for Breast, West China Hospital, Sichuan University, Chengdu, China
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2
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Cetin R, Quandt E, Kaulich M. Functional Genomics Approaches to Elucidate Vulnerabilities of Intrinsic and Acquired Chemotherapy Resistance. Cells 2021; 10:cells10020260. [PMID: 33525637 PMCID: PMC7912423 DOI: 10.3390/cells10020260] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 01/24/2021] [Accepted: 01/25/2021] [Indexed: 12/12/2022] Open
Abstract
Drug resistance is a commonly unavoidable consequence of cancer treatment that results in therapy failure and disease relapse. Intrinsic (pre-existing) or acquired resistance mechanisms can be drug-specific or be applicable to multiple drugs, resulting in multidrug resistance. The presence of drug resistance is, however, tightly coupled to changes in cellular homeostasis, which can lead to resistance-coupled vulnerabilities. Unbiased gene perturbations through RNAi and CRISPR technologies are invaluable tools to establish genotype-to-phenotype relationships at the genome scale. Moreover, their application to cancer cell lines can uncover new vulnerabilities that are associated with resistance mechanisms. Here, we discuss targeted and unbiased RNAi and CRISPR efforts in the discovery of drug resistance mechanisms by focusing on first-in-line chemotherapy and their enforced vulnerabilities, and we present a view forward on which measures should be taken to accelerate their clinical translation.
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Affiliation(s)
- Ronay Cetin
- Institute of Biochemistry II, Goethe University Frankfurt-Medical Faculty, University Hospital, 60590 Frankfurt am Main, Germany;
| | - Eva Quandt
- Faculty of Medicine and Health Sciences, Universitat Internacional de Catalunya, 08195 Barcelona, Spain;
| | - Manuel Kaulich
- Institute of Biochemistry II, Goethe University Frankfurt-Medical Faculty, University Hospital, 60590 Frankfurt am Main, Germany;
- Frankfurt Cancer Institute, 60596 Frankfurt am Main, Germany
- Cardio-Pulmonary Institute, 60590 Frankfurt am Main, Germany
- Correspondence: ; Tel.: +49-(0)-69-6301-5450
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3
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Sachdev JC, Munster P, Northfelt DW, Han HS, Ma C, Maxwell F, Wang T, Belanger B, Zhang B, Moore Y, Thiagalingam A, Anders C. Phase I study of liposomal irinotecan in patients with metastatic breast cancer: findings from the expansion phase. Breast Cancer Res Treat 2020; 185:759-771. [PMID: 33201358 PMCID: PMC7921078 DOI: 10.1007/s10549-020-05995-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 10/20/2020] [Indexed: 12/21/2022]
Abstract
Purpose Metastatic breast cancer (mBC) remains incurable and is associated with low survival rates. This study assessed the efficacy and safety of liposomal irinotecan in heavily pretreated patients with mBC, with or without active brain metastases (BM). Methods Following the dose escalation phase and determination of recommended phase 2 dose, the expansion phase of this phase I, open-label, non-randomized study, assigned adult women to cohorts based on mBC subtype: cohort 1, hormone receptor +/human epidermal growth factor receptor 2−; cohort 2, triple-negative breast cancer; or cohort 3, any mBC subtype with active BM. Patients received liposomal irinotecan 50 or 70 mg/m2 free base every 2 weeks. Here, we report secondary outcomes including best overall response (BOR), objective response rate (ORR), and treatment-emergent adverse events (TEAEs). Results For non-central nervous system (non-CNS) disease across all cohorts (intent-to-treat population, N = 29), the ORR was 34.5% (95% confidence interval: 17.94–54.33), with a BOR of partial response in 10 patients (34.5%), stable disease in five (17.2%), progressive disease in 10 (34.5%); four patients were unevaluable (13.8%). The ORR for the CNS cohort was 30.0% (95% confidence interval: 6.67–65.25) using modified Response Evaluation Criteria in Solid Tumors. Common grade 3 or higher TEAEs were diarrhea (27.6%), nausea (17.2%), fatigue (13.8%), asthenia (10.3%), and hypokalemia (10.3%). Serious treatment-related TEAEs were reported in six patients (20.7%). No treatment-related TEAEs resulted in death. Conclusions Liposomal irinotecan monotherapy demonstrated antitumor activity in heavily pretreated patients with mBC, with or without BM. The observed safety profile was consistent with that in previous studies. Clinical trial registration: Trial registration ID NCT01770353. Electronic supplementary material The online version of this article (10.1007/s10549-020-05995-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jasgit C Sachdev
- HonorHealth Research Institute, 10510 N. 92nd Street, Suite 200, Scottsdale, AZ, 85258, USA. .,Translational Genomics Research Institute, Phoenix, AZ, USA.
| | | | | | | | - Cynthia Ma
- Washington University, St. Louis, MO, USA
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4
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Koda Y, Kuribayashi K, Doi H, Kitajima K, Nakajima Y, Ishigaki H, Nakamura A, Minami T, Takahashi R, Yokoi T, Kijima T. Irinotecan and Gemcitabine as Second-Line Treatment in Patients with Malignant Pleural Mesothelioma following Platinum plus Pemetrexed Chemotherapy: A Retrospective Study. Oncology 2020; 99:161-168. [PMID: 33053560 DOI: 10.1159/000510691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 08/03/2020] [Indexed: 11/19/2022]
Abstract
BACKGROUND Cisplatin-pemetrexed combination chemotherapy is the current standard primary treatment for malignant pleural mesothelioma (MPM). It was first approved for untreated and unresectable MPM in the 2003 National Comprehensive Cancer Network (NCCN) guidelines. However, to date, standard treatments for patients with MPM who previously underwent chemotherapy, as recommended by the NCCN Malignant Pleural Mesothelioma guidelines, have been inadequate. To explore treatment options for such patients, we performed this retrospective study of patients who received irinotecan plus gemcitabine as second-line therapy for MPM. METHODS We investigated 62 patients diagnosed with unresectable MPM between January 2008 and October 2017 who experienced recurrence following cisplatin treatment (or carboplatin) plus pemetrexed or pemetrexed monotherapy as first-line treatment, and who underwent irinotecan plus gemcitabine combination therapy as second-line treatment. Irinotecan (60 mg/m2) and gemcitabine (800 mg/m2) were administered on days 1 and 8 every 3 weeks, including a 1-week washout period. Our endpoints were efficacy, survival period, and toxicity. RESULTS patients' median age was 65 years (range 50-79), and the histological MPM types were epithelioid (n = 48), sarcomatoid (n = 6), biphasic (n = 6), and desmoplastic (n = 2). One patient experienced a partial response, 40 had stable disease, and 21 had progressive disease. The disease control rate was 66.1% and the response rate 2.1%. Additionally, the median progression-free and overall survival time were 5.7 and 11.3 months, respectively. The most common adverse events were neutropenia (32.2%), loss of appetite (16.1%), nausea/diarrhea (11.3%), and thrombocytopenia/phlebitis (9.7%). Grade 3 adverse events included neutropenia (12.9%) and thrombocytopenia/phlebitis (2.1%); however, all adverse events were managed with symptomatic therapy. CONCLUSIONS Despite the fact that second-line irinotecan plus gemcitabine combination therapy did not produce marked tumor shrinkage, it achieved a relatively high disease control rate of >65% with an acceptable toxicity profile. Hence, the combination of irinotecan plus gemcitabine may be considered for MPM treatment, with consideration of combination with immune checkpoint inhibitors as a potential next step.
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Affiliation(s)
- Yuichi Koda
- Division of Respiratory Medicine, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan
| | - Kozo Kuribayashi
- Division of Respiratory Medicine, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan, .,Department of Thoracic Oncology, Hyogo College of Medicine, Nishinomiya, Japan,
| | - Hiroshi Doi
- Department of Radiology, Hyogo College of Medicine, Nishinomiya, Japan
| | - Kazuhiro Kitajima
- Department of Radiology, Hyogo College of Medicine, Nishinomiya, Japan
| | - Yasuhiro Nakajima
- Division of Respiratory Medicine, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan
| | - Hirotoshi Ishigaki
- Division of Respiratory Medicine, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan
| | - Akifumi Nakamura
- Division of Thoracic Surgery, Department of Surgery, Hyogo College of Medicine, Nishinomiya, Japan
| | - Toshiyuki Minami
- Division of Respiratory Medicine, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan
| | - Ryo Takahashi
- Division of Respiratory Medicine, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan
| | - Takashi Yokoi
- Division of Respiratory Medicine, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan.,Department of Thoracic Oncology, Hyogo College of Medicine, Nishinomiya, Japan
| | - Takashi Kijima
- Division of Respiratory Medicine, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan.,Department of Thoracic Oncology, Hyogo College of Medicine, Nishinomiya, Japan
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5
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Yoshino K, Kamiura S, Yokoi T, Nakae R, Fujita M, Takemura M, Adachi K, Wakimoto A, Nishizaki T, Shiki Y, Tsutsui T, Kanda Y, Kobayashi E, Hashimoto K, Mabuchi S, Ueda Y, Sawada K, Tomimatsu T, Kimura T. Combination chemotherapy with irinotecan and gemcitabine for taxane/platinum-resistant/refractory ovarian and primary peritoneal cancer: a multicenter phase I/II trial (GOGO-Ov 6). Cancer Chemother Pharmacol 2017; 80:1239-1247. [PMID: 29080971 DOI: 10.1007/s00280-017-3468-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Accepted: 10/16/2017] [Indexed: 01/22/2023]
Abstract
PURPOSE To develop a new therapeutic strategy for taxane/platinum-resistant/refractory ovarian and primary peritoneal cancers, we evaluated the feasibility and efficacy of irinotecan and gemcitabine combination chemotherapy. METHODS Patients with taxane/platinum-resistant/refractory cancer received escalating doses of irinotecan and gemcitabine (level 1: 80 and 800 mg/m2, respectively; level 2: 100 and 1000 mg/m2) on days 1 and 8 on a 21-day cycle. Genotyping for UGT1A1*6 and *28 polymorphisms was performed for possible adverse irinotecan sensitivity. RESULTS A total of 35 patients were enrolled. The recommended dose was defined as 100 mg/m2 irinotecan and 1000 mg/m2 gemcitabine (level 2). The observed common grade 3/4 toxicities were neutropenia (60%), anemia (17.1%), diarrhea (8.6%), thrombocytopenia (5.7%) and nausea (5.7%). Groups homozygous for UGT1A1*6 or *28 were associated with grade 3/4 neutropenia and diarrhea. Objective responses were 20%, including one complete response and six partial responses. In 29 patients treated with the recommended dose, the median progression-free survival and overall survival were 3.8 months (95% CI 2.1-6.0 months) and 17.4 months (95% CI 9.9-21.9 months), respectively, while the 1-year survival rate was 58.6%. CONCLUSIONS Combination chemotherapy with irinotecan and gemcitabine represents a safe and effective treatment combination for taxane/platinum-resistant/refractory ovarian and primary peritoneal cancers.
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Affiliation(s)
- Kiyoshi Yoshino
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, 2-2, Yamadaoka, Suita, Osaka, 5650871, Japan.
| | - Shoji Kamiura
- Department of Gynecologic Oncology, Osaka International Cancer Institute, 3-1-69 Otemae, Chuo-ku, Osaka, Osaka, 5418567, Japan
| | - Takeshi Yokoi
- Department of Obstetrics and Gynecology, Kaizuka City Hospital, 3-10-20 Hori, Kaizuka, Osaka, 5970015, Japan
| | - Ruriko Nakae
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, 2-2, Yamadaoka, Suita, Osaka, 5650871, Japan
| | - Masami Fujita
- Department of Obstetrics and Gynecology, Nissay Hospital, 6-3-8 Nishi-ku Itachibori, Osaka, Osaka, 5500012, Japan
| | - Masahiko Takemura
- Department of Obstetrics and Gynecology, Osaka General Medical Center, 3-1-56 Sumiyoshi-ku Manndai-higashi, Osaka, Osaka, 5588558, Japan
| | - Kazushige Adachi
- Department of Obstetrics and Gynecology, Minoh City Hospital, 5-7-1 Kayano, Minoh, Osaka, 5620014, Japan
| | - Akinori Wakimoto
- Department of Obstetrics and Gynecology, Toyonaka Municipal Hospital, 4-14-1 Shibahara, Toyonaka, Osaka, 5608565, Japan
| | - Takamichi Nishizaki
- Department of Obstetrics and Gynecology, Suita Municipal Hospital, 2-13-20 Katayama-cho, Suita, Osaka, 5640082, Japan
| | - Yasuhiko Shiki
- Department of Obstetrics and Gynecology, Osaka Rosai Hospital, 1179-3 Kita-ku, Nagasone-cho, Sakai, Osaka, 5918025, Japan
| | - Tateki Tsutsui
- Department of Obstetrics and Gynecology, Japan Community Healthcare Organization (JCHO) Osaka Hospital, Fukusima-ku, Fukushima, Osaka, Osaka, 5530003, Japan
| | - Yuki Kanda
- Department of Gynecology, Otemae Hospital, 1-5-34 Chuo-ku Otemae, Osaka, Osaka, 5400008, Japan
| | - Eiji Kobayashi
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, 2-2, Yamadaoka, Suita, Osaka, 5650871, Japan
| | - Kae Hashimoto
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, 2-2, Yamadaoka, Suita, Osaka, 5650871, Japan
| | - Seiji Mabuchi
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, 2-2, Yamadaoka, Suita, Osaka, 5650871, Japan
| | - Yutaka Ueda
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, 2-2, Yamadaoka, Suita, Osaka, 5650871, Japan
| | - Kenjiro Sawada
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, 2-2, Yamadaoka, Suita, Osaka, 5650871, Japan
| | - Takuji Tomimatsu
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, 2-2, Yamadaoka, Suita, Osaka, 5650871, Japan
| | - Tadashi Kimura
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, 2-2, Yamadaoka, Suita, Osaka, 5650871, Japan
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Lan H, Li Y, Lin CY. Irinotecan as a Palliative Therapy for Metastatic Breast Cancer Patients after Previous Chemotherapy. Asian Pac J Cancer Prev 2015; 15:10745-8. [DOI: 10.7314/apjcp.2014.15.24.10745] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Alemany C. Etirinotecan pegol: development of a novel conjugated topoisomerase I inhibitor. Curr Oncol Rep 2014; 16:367. [PMID: 24445499 DOI: 10.1007/s11912-013-0367-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Irinotecan is a very active chemotherapeutic agent used for the treatment of several malignancies, including colorectal cancer, gastroesophageal tumors, lung cancer, breast cancer, ovarian cancer, and primary brain tumors. Irinotecan exerts its antineoplastic effects through its active metabolite 7-ethyl-10-hydroxycamptothecin. This metabolite is also responsible for the classic side effects associated with irinotecan that include diarrhea and neutropenia. A pegylated form of this agent, etirinotecan pegol, is undergoing clinical development with the main goal of increasing its therapeutic efficacy and its safety. This agent decreases the maximal exposure to 7-ethyl-10-hydroxycamptothecin while providing continuous exposure to the treated tumor. The half-life of etirinotecan pegol is 50 days and it has been studied in different schedules: weekly, every other week, and once every 3 weeks. The maximum tolerated dose of etirinotecan pegol was found to be 145 mg/m(2). There have already been two phase II clinical trials published showing the efficacy of this novel agent in the treatment of metastatic ovarian and breast cancer. The side effect profile was acceptable for most patients, with a number of patients experiencing diarrhea and even neutropenia.
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Affiliation(s)
- Carlos Alemany
- Department of Hematology and Oncology, Florida Hospital Cancer Institute, 2501 N. Orange Avenue, Suite 689, Orlando, FL, 32804, USA,
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8
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A systematic review on topoisomerase 1 inhibition in the treatment of metastatic breast cancer. Breast Cancer Res Treat 2013; 138:347-58. [DOI: 10.1007/s10549-013-2476-3] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2013] [Accepted: 03/05/2013] [Indexed: 01/26/2023]
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Craig BM, Han G, Munkin MK, Fenstermacher D. Simulating the contribution of a biospecimen and clinical data repository in a phase II clinical trial: A value of information analysis. Stat Methods Med Res 2013; 25:1303-12. [PMID: 23503303 DOI: 10.1177/0962280213480282] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The potential contributions of a centralized data warehouse or repository in clinical research include the expedited accrual of subjects for phase II trials. Understanding the contribution of data warehouses that integrate clinical, biospecimen, and molecular data for the conduct of clinical trials is essential to inform private and public decisions on resource allocation and investment. We conducted a value of information analysis using data from recent trials at the Moffitt Cancer Center and simulated the potential reductions in trial size due to possible alternative scenarios of expedited accrual. In this study, we compared alternative data sets using a single model to assess value of information. Our findings suggest that the reductions in trial size range from 0% to 43%, depending on the amount of censoring in overall survival. The ability to expedite the accrual of patients for clinical trial studies using large data repositories that store data on inclusion/exclusion criteria and response to standard of care therapies demonstrated significant improvement in reducing the number of subjects needed to achieve similar end-results, as evaluated using value of information analysis with a limited number of parameters and a parsimonious model of overall survival.
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Affiliation(s)
- Benjamin M Craig
- Health Outcomes and Behavior, Moffitt Cancer Center, Tampa, FL, USA Department of Economics, University of South Florida, Tampa, FL, USA
| | - Gang Han
- Program of Applied Translational Research, Department of Internal Medicine, Yale University School of Medicine, USA
| | - Murat K Munkin
- Department of Economics, University of South Florida, Tampa, FL, USA
| | - David Fenstermacher
- Health Outcomes and Behavior, Moffitt Cancer Center, Tampa, FL, USA Department of Biomedical Informatics, Moffitt Cancer Center, Tampa, FL, USA
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Al-Batran SE, Güntner M, Pauligk C, Scholz M, Chen R, Beiss B, Stopatschinskaja S, Lerbs W, Harbeck N, Jäger E. Anthracycline rechallenge using pegylated liposomal doxorubicin in patients with metastatic breast cancer: a pooled analysis using individual data from four prospective trials. Br J Cancer 2010; 103:1518-23. [PMID: 20978502 PMCID: PMC2990592 DOI: 10.1038/sj.bjc.6605961] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2010] [Revised: 09/17/2010] [Accepted: 09/24/2010] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND The aim of this study was to determine the activity of anthracycline rechallenge using pegylated liposomal doxorubicin (PLD) in patients with metastatic breast cancer (MBC) previously treated with conventional anthracyclines. METHODS Pooled individual data from four prospective trials were used, and the primary end point of the pooled analysis was clinical benefit rate (CBR). The studies comprised 935 patients, of whom 274 had received PLD in the metastatic setting after prior exposure to conventional anthracyclines (rechallenge population). RESULTS The majority of patients were heavily pretreated. Previous anthracycline therapy was administered in the adjuvant (14%) or metastatic setting (46%), or both (40%). The overall CBR from rechallenge with PLD was 37.2% (95% CI, 32.4-42.0). In univariate analyses, the CBR was significantly higher in patients with less exposure to prior chemotherapy, in taxane-naive patients, and in patients with a favourable Eastern Cooperative Group performance status of 0 vs 1 vs 2 (53.3 vs 35.5 vs 18.2%; P<0.001). In multivariate analyses, performance status proved to be the only independent predictor of the CBR achieved with PLD rechallenge (P=0.038). There was no statistically significant difference in CBR regarding the setting, cumulative dose of and/or resistance to prior anthracyclines, or time since prior anthracycline administration. CONCLUSION Anthracycline rechallenge using PLD is effective in patients with MBC who have a favourable performance status, regardless of setting, resistance, cumulative dose or time since prior conventional anthracycline therapy.
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Affiliation(s)
- S-E Al-Batran
- Klinik für Onkologie und Hämatologie am Krankenhaus Nordwest, Krankenhaus Nordwest, Steinbacher Hohl 2-26, 60488 Frankfurt am Main, Germany.
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11
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A phase I study of flavopiridol in combination with gemcitabine and irinotecan in patients with metastatic cancer. Am J Clin Oncol 2010; 33:393-7. [PMID: 19884803 DOI: 10.1097/coc.0b013e3181b2043f] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Flavopiridol (HMR 1275) is a synthetic flavone with antineoplastic properties through inhibition of cyclin-dependent kinase inhibitor. Flavopiridol synergizes in a sequence-dependent fashion with chemotherapy. Major adverse events of flavopiridol in single agent phase I studies are secretory diarrhea, neutropenia, thrombosis, and fatigue. PATIENTS AND METHODS Patients with advanced solid tumors were treated with gemcitabine 800 mg/m and irinotecan 80 mg/m on day 1, followed by flavopiridol, starting dose of 30 mg/m on day 2 with increment of 15 mg/m per dose level, repeated on days 8 and 9 for the first 6 patients (3-week cycle), and then repeated on days 15 and 16 for the remainder patients (4-week cycle). The protocol had to be amended for inability to redose after 1 week. RESULTS Fourteen women and 7 men with advanced solid tumors were enrolled. The median age was 51 years and the median number of prior chemotherapies was 3 (0-9). Neutropenic sepsis (1 patient), grade 3 diarrhea (1 patient), and neutropenia (2 patients) preventing retreatment on day 8 were observed among the 6 subjects treated on the first schedule. The recommended phase II dose of flavopiridol was 45 mg/m in combination with irinotecan and gemcitabine every 2 weeks. Dose-limiting toxicities were electrolyte imbalance with fatigue (1 patient), and renal failure and dyspnea with hypoxia (1 patient each), seen at 45 and 60 mg/m doses, respectively. The most common side effects were fatigue (81%), nausea (71%), diarrhea (67%), transient myelosuppression (43%), and vomiting (24%). CONCLUSIONS The every 2 week dosing is well tolerated with a phase II recommended dose of 45 mg/m of flavopiridol in combination with irinotecan (80 mg/m) and gemcitabine (800 mg/m).
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12
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Apana SM, Anderson LW, Berridge MS. Synthesis and biodistribution of [ 11C]SN-38. J Labelled Comp Radiopharm 2010. [DOI: 10.1002/jlcr.1746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Azorsa DO, Gonzales IM, Basu GD, Choudhary A, Arora S, Bisanz KM, Kiefer JA, Henderson MC, Trent JM, Von Hoff DD, Mousses S. Synthetic lethal RNAi screening identifies sensitizing targets for gemcitabine therapy in pancreatic cancer. J Transl Med 2009; 7:43. [PMID: 19519883 PMCID: PMC2702280 DOI: 10.1186/1479-5876-7-43] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2009] [Accepted: 06/11/2009] [Indexed: 01/15/2023] Open
Abstract
Background Pancreatic cancer retains a poor prognosis among the gastrointestinal cancers. It affects 230,000 individuals worldwide, has a very high mortality rate, and remains one of the most challenging malignancies to treat successfully. Treatment with gemcitabine, the most widely used chemotherapeutic against pancreatic cancer, is not curative and resistance may occur. Combinations of gemcitabine with other chemotherapeutic drugs or biological agents have resulted in limited improvement. Methods In order to improve gemcitabine response in pancreatic cancer cells, we utilized a synthetic lethal RNAi screen targeting 572 known kinases to identify genes that when silenced would sensitize pancreatic cancer cells to gemcitabine. Results Results from the RNAi screens identified several genes that, when silenced, potentiated the growth inhibitory effects of gemcitabine in pancreatic cancer cells. The greatest potentiation was shown by siRNA targeting checkpoint kinase 1 (CHK1). Validation of the screening results was performed in MIA PaCa-2 and BxPC3 pancreatic cancer cells by examining the dose response of gemcitabine treatment in the presence of either CHK1 or CHK2 siRNA. These results showed a three to ten-fold decrease in the EC50 for CHK1 siRNA-treated cells versus control siRNA-treated cells while treatment with CHK2 siRNA resulted in no change compared to controls. CHK1 was further targeted with specific small molecule inhibitors SB 218078 and PD 407824 in combination with gemcitabine. Results showed that treatment of MIA PaCa-2 cells with either of the CHK1 inhibitors SB 218078 or PD 407824 led to sensitization of the pancreatic cancer cells to gemcitabine. Conclusion These findings demonstrate the effectiveness of synthetic lethal RNAi screening as a tool for identifying sensitizing targets to chemotherapeutic agents. These results also indicate that CHK1 could serve as a putative therapeutic target for sensitizing pancreatic cancer cells to gemcitabine.
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Affiliation(s)
- David O Azorsa
- Pharmaceutical Genomics Division, The Translational Genomics Research Institute, Scottsdale, Arizona 85259, USA.
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