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Crew KD, Anderson GL, Arnold KB, Stieb AP, Amenta JN, Collins N, Law CW, Pruthi S, Sandoval-Leon A, Bertoni D, Grosse Perdekamp MT, Colonna S, Krisher S, King T, Yee LD, Ballinger TJ, Braun-Inglis C, Mangino D, Wisinski KB, DeYoung CA, Ross M, Floyd J, Kaster A, Vander Walde L, Saphner T, Zarwan C, Lo S, Graham C, Conlin A, Yost K, Agnese D, Jernigan C, Hershman DL, Neuhouser ML, Arun B, Kukafka R. Making informed choices on incorporating chemoprevention into carE (MiCHOICE, SWOG 1904): Design and methods of a cluster randomized controlled trial. Contemp Clin Trials 2024:107564. [PMID: 38704119 DOI: 10.1016/j.cct.2024.107564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 04/15/2024] [Accepted: 05/01/2024] [Indexed: 05/06/2024]
Abstract
INTRODUCTION Women with atypical hyperplasia (AH) or lobular carcinoma in situ (LCIS) have a significantly increased risk of breast cancer, which can be substantially reduced with antiestrogen therapy for chemoprevention. However, antiestrogen therapy for breast cancer risk reduction remains underutilized. Improving knowledge about breast cancer risk and chemoprevention among high-risk patients and their healthcare providers may enhance informed decision-making about this critical breast cancer risk reduction strategy. METHODS/DESIGN We are conducting a cluster randomized controlled trial to evaluate the effectiveness and implementation of patient and provider decision support tools to improve informed choice about chemoprevention among women with AH or LCIS. We have cluster randomized 26 sites across the U.S. through the SWOG Cancer Research Network. A total of 415 patients and 200 healthcare providers are being recruited. They are assigned to standard educational materials alone or combined with the web-based decision support tools. Patient-reported and clinical outcomes are assessed at baseline, after a follow-up visit at 6 months, and yearly for 5 years. The primary outcome is chemoprevention informed choice after the follow-up visit. Secondary endpoints include other patient-reported outcomes, such as chemoprevention knowledge, decision conflict and regret, and self-reported chemoprevention usage. Barriers and facilitators to implementing decision support into clinic workflow are assessed through patient and provider interviews at baseline and mid-implementation. RESULTS/DISCUSSION With this hybrid effectiveness/implementation study, we seek to evaluate if a multi-level intervention effectively promotes informed decision-making about chemoprevention and provide valuable insights on how the intervention is implemented in U.S. CLINICAL SETTINGS TRIAL REGISTRATION NCT04496739.
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Affiliation(s)
- K D Crew
- Columbia University Irving Medical Center, New York, NY, USA.
| | - G L Anderson
- SWOG Statistics and Data Management Center, Seattle, WA, USA
| | - K B Arnold
- SWOG Statistics and Data Management Center, Seattle, WA, USA
| | - A P Stieb
- Columbia University Irving Medical Center, New York, NY, USA
| | - J N Amenta
- Columbia University Irving Medical Center, New York, NY, USA
| | - N Collins
- Columbia University Irving Medical Center, New York, NY, USA
| | - C W Law
- Columbia University Irving Medical Center, New York, NY, USA
| | - S Pruthi
- Mayo Clinic, Rochester, MN, United States of America
| | - A Sandoval-Leon
- Miami Cancer Institute at Baptist Health South Florida, Miami, FL, USA
| | - D Bertoni
- Good Samaritan Hospital Corvallis, Corvallis, OR , USA
| | | | - S Colonna
- Huntsman Cancer Institute / University of Utah Medical Center, Salt Lake City, UT, USA
| | - S Krisher
- Holy Redeemer Hospital and Medical Center, Meadowbrook, PA, USA
| | - T King
- Dana-Farber Brigham Cancer Center, Brigham and Women's Hospital, Boston, MA, USA
| | - L D Yee
- City of Hope Comprehensive Cancer Center, Duarte, CA, USA
| | - T J Ballinger
- Indiana University Simon Comprehensive Cancer Center, Indianapolis, IN, USA
| | | | - D Mangino
- Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - K B Wisinski
- University of Wisconsin Carbone Cancer Center, Madison, WI, USA
| | | | - M Ross
- Virginia Commonwealth University, Richmond, VA, USA
| | - J Floyd
- Cancer Care Specialists of Illinois, Heartland NCORP, Decatur, IL, USA
| | - A Kaster
- Sanford Roger Maris Cancer Center, Fargo, ND, United States of America
| | - L Vander Walde
- Baptist Memorial Health Care, Memphis, TN, United States of America
| | | | - C Zarwan
- Lahey Hospital & Medical Center, Burlington, MA, USA
| | - S Lo
- Loyola University Stritch School of Medicine, Maywood, IL, USA
| | - C Graham
- Emory University Hospital/Winship Cancer Institute, Atlanta, GA, USA
| | - A Conlin
- Providence Cancer Institute, Portland, OR, USA
| | - K Yost
- Cancer Research Consortium of West Michigan NCORP, Kalamazoo, MI, USA
| | - D Agnese
- The Ohio State University Comprehensive Cancer Center, Columbus, OH, USA
| | - C Jernigan
- Columbia University Irving Medical Center, New York, NY, USA
| | - D L Hershman
- Columbia University Irving Medical Center, New York, NY, USA
| | | | - B Arun
- The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - R Kukafka
- Columbia University Irving Medical Center, New York, NY, USA
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Sivakumar S, Kamalakannan M, Kalpana AP, Prakash J, Arun B. Effect of Mulligan’s Mobilization Versus Muscle Energy Technique on Sacroiliac Joint Dysfunction. Int J Life Sci Pharm Res 2023. [DOI: 10.22376/ijlpr.2023.13.3.l167-l176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/28/2023]
Abstract
Sacroiliac joint dysfunction (SIJDF) is about 15% to 30% identified in a patient with low back aches. This Study aimed to determine the effect of mulligan mobilization versus muscle energy technique on sacroiliac joint dysfunction. The study was a randomized controlled trial that involved 66 participants with SIJDF, after a thorough evaluation the participants were divided into three groups. In experimental group I (Mulligan's mobilization group (MMG)), participants underwent Mulligan mobilization for 20 minutes. The experimental group II (Muscle energy group (MEG)) participants underwent the muscle energy technique for 20 minutes, and the third group underwent moist heat therapy (moist heat group (MHG)) for 20 minutes. For all three groups, 10 minutes of exercise were taught to the patients. All the participants of the groups were included based on pre-determined selection criteria, and all were willing to participate in the Study. The outcome measures of Pain, functional disability, and kinesiophobia were measured by the Numerical pain scale, Oswestry disability index, and Tampa scale respectively. The result was computed using One-way ANOVA, showing significant differences between the three groups. When significant differences were obtained on ANOVA, further analysis was done using a post hoc test. The values for the outcomes are Pain was compared with MMG vs. MEG is 8.045 and the MMG vs. MHG is 4.022 and MMG vs. MEG is 12.07, on Oswestry disability index MEG vs. MHG 9.85, MMG vs. MHG is 2.23 and MMG vs. MEG is 12.08. For kinesiophobia, MMG vs. MEG is 20.25, MMG vs. MHG is 15.35, and MMG vs. MEG is 35.60. This Study concludes that Mulligan's mobilization is more effective in reducing pain, improving function, and kinesiophobia in SI joint dysfunction than the other two groups.
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Maulik S, Roy P, Mallick I, Prasath S, Arun B, Chatterjee S. Definitive chemoradiation for oropharyngeal squamous carcinomas: Outcomes with intensity-modulated radiation therapy using simultaneous integrated boost, in a majorly p16 negative cohort. Head Neck 2023; 45:1156-1161. [PMID: 36859789 DOI: 10.1002/hed.27328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 01/23/2023] [Accepted: 02/06/2023] [Indexed: 03/03/2023] Open
Abstract
BACKGROUND The literature on modern-era outcomes of oropharyngeal squamous carcinoma (OPSCC) in India is limited. MATERIALS AND METHODS We analyzed records of consecutive patients with OPSCC treated using a curative SIB IMRT regimen of 66 Gy/30#/6 weeks. RESULTS One hundred fifteen patients from July 2011 to December 2018 were analyzed. Twenty of 69 patients tested positive for p16. In p16 positive patients, the K-M probability of being disease free and alive at 2 years, with at least one follow-up 3 months after treatment, was 83% (median not reached) compared with 48% if p16 was unknown/negative. Patients staged as IVB p16 negative had a 2-year DFS of 25%. Patients unfit for cisplatin and consequently received other agents had 2-year DFS estimated at 20%. CONCLUSIONS Intensity-modulated radiation therapy (IMRT) with simultaneous integrated boost (SIB) and concurrent chemotherapy was feasible, with toxicity and disease control comparable to available literature. AJCC Stage IVB p16 negative disease had notably poor outcome.
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Affiliation(s)
- Shaurav Maulik
- Department of Radiation Oncology, Tata Medical Center, Kolkata, India
| | - Paromita Roy
- Department of Pathology, Tata Medical Center, Kolkata, India
| | - Indranil Mallick
- Department of Radiation Oncology, Tata Medical Center, Kolkata, India
| | - Sriram Prasath
- Department of Physics, Tata Medical Center, Kolkata, India
| | - B Arun
- Department of Physics, Tata Medical Center, Kolkata, India
| | - Sanjoy Chatterjee
- Department of Radiation Oncology, Tata Medical Center, Kolkata, India
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Praveen J, Nameer PO, Jha A, Aravind A, Dilip KG, Karuthedathu D, Tom G, Mavelikara H, Mannar H, Palot J, Johnson J, Jishnu R, Rodrigues KM, Mujeeb PM, Namassivayan L, Payyeri N, Nesrudheen PP, Narayanan SP, Prasanth SS, Krishna MCP, Praveen ES, Velayudhan P, Reghuvaran P, Kidoor R, Rathish RL, Roshnath R, Sashikumar C, Meppayur S, Sivakumar AK, Sreedevi AK, Sreekumar B, Sreekumar ER, Sumesh PB, Venugopal R, Venugopal V, Vishnudas CK, Kartha V, Puliyeri V, Quader S, Reddy A, Puthiyeri AR, Riyas KA, Abhijith RS, Surendran A, Sunil AM, Chandran A, Abhirami C, Jayakumar AM, Peter AS, Muhammed NVA, Katakath AF, Ajai P, Raju AK, Akhil PM, Akhil US, Amal US, Menon A, Ansari AI, Aneesh KS, Aneesh S, Hari CA, Anjitha R, Raj PNA, John A, Varma A, Anushreedha SS, Aravind CK, Ramachandran A, Arun B, George A, Gopi AP, Varghese A, Vinod A, Shaji A, Raj VMA, Viswanathan A, Mohammed A, Aswin A, Aswin KS, Ali AA, Balaji PB, Paul MB, Shree JC, Venkatraman C, Charutha K, Jose CT, Jose CP, Singh D, Sanghamithra D, Sikarwar DS, Murukesh D, Divin V, Arief F, Mandal J, Sarlin PJ, Nafar AA, Bachan KHA, Rejitha V, Dev RSV, Rowther BE, Raja F, Iyer G, George G, Gireesan TU, Mohan PKG, Dsouza GP, Govind G, Greeshma P, Prasad PMH, Hariharan TV, Harith A, Harith C, Hemanth B, Mohamed I, David JP, Jain PK, Jameela P, Jayakrishnan G, Jishnu K, Jismi MO, Johnson J, Soniya CJ, Babu JR, Roy J, Nelson J, Krishnan MJ, Bhandary KP, Jamaludheen KM, Ravi K, Thrikkadeeri K, Nair KK, Kiran BS, Kumar KS, Raj DK, Panaganti KK, Moorthy MK, Murthy RK, Krishnanunni MR, Prabhakaran L, Lathika KK, Abraham L, Narayanan GH, Panigrahi M, Manav S, Karingamadathil M, Manoj TR, Thomas M, Manuel PP, Varghese MG, Chandran PM, Sulaiman MM, Madathil MA, Hirash VKM, Ramees KM, Thirunnavaya MS, Niyas APM, Muhasin CT, Kizhakkemadham M, Azeez NA, Nikhil PV, Niranjana C, Mundekad N, Mohan N, Pavithra A, Viswanathan P, Pramod P, Prakash G, Prasath S, Prakash P, Preethi N, Rajeevan R, Rajaguru M, Rajarajan V, Sankaran R, Ratheesh K, Crasta RP, Mohan R, Renju A, Koshy RC, Rai R, Tom R, Chandran S, Sachinkrishna MV, Ali MVSA, Siril S, Bharadwaj DDS, George S, Morris S, Augustine S, Das SK, Morris S, Sandra PR, Sanuraj TK, Sawant S, Morris S, Selvaganesh K, Shahil K, Shahina NN, Valasy S, Siji PK, Joseph S, Sivashankar R, Karim SA, Mohan SK, Pillai SM, Sowmiya MS, Srinila KT, Subin KS, Sujith VG, Sukumaran S, Syamili MS, Menon T, Praveen T, Thilak SA, Antony T, Ullas UR, Sivaji VO, Narayanan V, Sreejith MV, Chandran AV, Sudhakaran V, Vridhi R, Humam WI, Uchummal YJ, Yathumon MA. Kerala Bird Atlas 2015–20: features, outcomes and implications of a citizen-science project. CURR SCI INDIA 2022. [DOI: 10.18520/cs/v122/i3/298-309] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Thangam V, Rajalakshmi A, Chandrasekaran A, Arun B, Viswanathan S, Venkatraman B, Bera S. Determination of natural radioactivity in beach sands collected along the coastal area of Tamilnadu, India using gamma ray spectrometry. J Radioanal Nucl Chem 2022. [DOI: 10.1007/s10967-022-08193-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Chatterjee S, Maulik S, Prasath S, Arun B, Das A, Chakrabarty S, Arunsingh M, Mallick I. Xerostomia quality of life and resource requirements following parotid sparing adaptive radiotherapy in head and neck cancers: Results of a prospective cohort study (Study ID CTRI/2017/11/010683). Radiother Oncol 2022; 168:250-255. [DOI: 10.1016/j.radonc.2022.01.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 01/11/2022] [Accepted: 01/17/2022] [Indexed: 10/19/2022]
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Maulik S, Arunsingh M, Arun B, Prasath S, Mallick I. Moderately Hypofractionated Radiotherapy and Androgen Deprivation Therapy for High-risk Localised Prostate Cancer: Predictors of Long-term Biochemical Control and Toxicity. Clin Oncol (R Coll Radiol) 2021; 34:e52-e60. [PMID: 34456107 DOI: 10.1016/j.clon.2021.08.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 06/26/2021] [Accepted: 08/16/2021] [Indexed: 11/15/2022]
Abstract
AIMS There is a paucity of long-term data on outcomes of high-risk prostatic adenocarcinoma after moderately hypofractionated radiotherapy with elective nodal treatment and long-term androgen deprivation therapy (ADT). We report long-term control and toxicity outcomes and analyse the predictors of failure and toxicity. MATERIALS AND METHODS The records of 120 consecutive high-risk prostate cancer patients treated in a single institution between February 2012 and December 2016 were retrospectively analysed. A moderately hypofractionted radiotherapy (HypoRT) regimen of 60 Gy in 20 fractions over 4 weeks with simultaneous elective pelvic irradiation to 44 Gy in 20 fractions with intensity-modulated radiotherapy was used, together with long-term ADT with either orchiectomy or medical castration for a total duration of 2-3 years. We analysed biochemical control, metastasis-free survival and late toxicities and their predictive factors using survival analysis. RESULTS Patients had locally advanced cancers (cT3 77.5%, median pretreatment prostate-specific antigen 30 ng/ml, Gleason score 8-10 in 45.8%). The median follow-up time was 70 months. The 3- and 5-year probability of freedom from biochemical progression was 93% and 80%, respectively. The 5-year probability of freedom from local relapse/intra-pelvic nodal relapse/distant metastases as the site of first failure was 96%/97%/86%, respectively. Gleason score 8-10 and medical ADT for 2-3 years (as opposed to orchidectomy) were independent risk factors for distant metastases. A total of 18 grade 2 and above late gastrointestinal toxicity events and a total of 23 grade 2 and above late genitourinary toxicity events were documented. Patients who underwent a transurethral resection of prostate prior to radiotherapy had worse urological toxicity. CONCLUSIONS HypoRT with elective nodal treatment results in excellent pelvic control. Distant metastases are the primary mode of failure. Risk of metastases is associated with Gleason score and the duration of ADT. Late urinary toxicities are more common in those with prior transurethral resection of prostate.
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Affiliation(s)
- S Maulik
- Department of Radiation Oncology, Tata Medical Center, Newtown, Kolkata, West Bengal, India
| | - M Arunsingh
- Department of Radiation Oncology, Tata Medical Center, Newtown, Kolkata, West Bengal, India
| | - B Arun
- Department of Radiation Oncology, Tata Medical Center, Newtown, Kolkata, West Bengal, India
| | - S Prasath
- Department of Radiation Oncology, Tata Medical Center, Newtown, Kolkata, West Bengal, India
| | - I Mallick
- Department of Radiation Oncology, Tata Medical Center, Newtown, Kolkata, West Bengal, India.
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Rajanna M, Bharathi B, Shivakumar BR, Deepak M, Prashanth D, Prabakaran D, Vijayabhaskar T, Arun B. Immunomodulatory effects of Andrographis paniculata extract in healthy adults - An open-label study. J Ayurveda Integr Med 2021; 12:529-534. [PMID: 34376353 PMCID: PMC8377179 DOI: 10.1016/j.jaim.2021.06.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 06/01/2021] [Accepted: 06/04/2021] [Indexed: 11/26/2022] Open
Abstract
Background Andrographis paniculata (Burm.f.) Nees has been well-researched for its immunomodulatory effects. Objective(s) To investigate the immunomodulatory effects of standardized A. paniculata extract (SAPE) in healthy adults. Materials and methods The study was an open-label, single-centre study conducted for 30 days. Thirty participants with absolute lymphocyte counts of 1000–4000 cells/mm3 were enrolled and were instructed to ingest 200 mg of SAPE daily for 30 days. The participants visited the clinic at baseline, and days 3, 7, and 30. Immune cells such as NK cell (CD3-CD16+CD56+), T cells (CD3+), T helper cells (CD3+CD4+), T cytotoxic cells (CD3+CD8+) were measured using flow cytometry. Serum cytokines that include interferon gamma (IFN-γ), interleukin-4 (IL-4), interleukin-2 (IL-2), interleukin-12 (IL-12), and tumor necrosis factor alpha (TNF-α) were measured using ELISA. The SAPE used in this study was a standardized proprietary extract (AP-Bio®/KalmCold®) developed from the leaf extracts of A. paniculata. Results SAPE increased T cells, T helper cells and significantly increased IFN-γ, IL-4, and decreased IL-2 at day 30. A subgroup analysis of participants with absolute lymphocyte counts of 1000–3000 cells/mm3 indicated that there is a significant increase in the T cells, T helper cells at day 7 and 30 and significant increase in IFN-γ, IL-4 and decrease in IL-2 at day 30. There was no treatment related adverse effects following SAPE intake for 30 days. Conclusion Supplementation of SAPE resulted in immunomodulatory effects evidenced by its effects on immune cells and cytokines and it was found to be safe and tolerable.
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Affiliation(s)
- M Rajanna
- Surya Medical Centre, Bangalore, 560084, India
| | - B Bharathi
- Natural Remedies Pvt Ltd, Bangalore, 560100, India.
| | | | - M Deepak
- Natural Remedies Pvt Ltd, Bangalore, 560100, India
| | | | - D Prabakaran
- In Vitro Research Solutions (iVRS) Pvt Ltd, Bangalore, 560092, India
| | - T Vijayabhaskar
- In Vitro Research Solutions (iVRS) Pvt Ltd, Bangalore, 560092, India
| | - B Arun
- In Vitro Research Solutions (iVRS) Pvt Ltd, Bangalore, 560092, India
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Basu Achari R, Goyal L, Chakraborty S, Arunsingh M, Arun B, Das S, Bhattacharyya T, Mallick I, Chatterjee S, Chatterjee J, Dhara S, Ghosh N, Mukhopadhyay J. PO-1033 Molecular profile and early MRI changes after chemoradiation in high grade diffuse astrocytoma. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)07484-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Maulik S, Mallick I, Arunsingh M, Prasath S, Arun B, Chatterjee S. Parotid sparing adaptive radiotherapy in head and neck cancer patients: A study evaluating resource intensiveness and impact on quality of life. J Clin Oncol 2021. [DOI: 10.1200/jco.2021.39.15_suppl.e24037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e24037 Background: Anatomical changes during the course of parotid sparing IMRT for head and neck cancer can lead to an increase in the actual dose absorbed by the parotid glands, which may be controlled with the use of interval adaptive replanning. In this prospective assessment of adaptive replanning for parotid dose changes, we explored the feasibility of carrying out adaptive replanning based on predefined objective dosimetric criteria at specified time points. We sought to assess the impact of this measure using a clinically meaningful endpoint of patient reported quality of life outcomes. Methods: 90 patients with head and neck radiotherapy indicated for definitive management or adjuvant therapy who had at least one parotid gland receiving a mean dose (MD) of between 25-30Gy were accrued in the study. The index parotid was delineated on the images acquired on 14th and 19th day and the MD was determined by overlaying the verification image on the planned CT. If the MD had increased by 2% of the initial intended dose, an adaptive plan was attempted with an aim to reduce MD by 2% without compromising PTV coverage; this plan was then used to deliver the remaining treatment. Patients were invited to complete QoL questionnaires: EORTC-QLQC30 with HN35 module, and XeQoL score at baseline, at 3 and 9 months after completion of treatment. Results: 46 out of 90 patients met the threshold for adaptive replanning and were switched to the new plan during treatment. Adaptive replanning was triggered at D14 for 31 patients and D19 for the remaining 15. Need for adaptive replanning was associated with receipt of concurrent chemotherapy and weight loss in the first two weeks of RT. QoL was evaluable for 50 patients at 3 months post treatment. In patients who required adaptive replanning per protocol, Mean XeQoL scores at 3 months showed significantly worse scores for overall scores (1.1 vs 2.3, p 0.001) and for the component individual physical, pain, psychological, and social domains. EORTC QLQ-C30 and HN35 questionnaires at 3 months also demonstrated significantly worse mean symptom scores of the relevant domains of mouth dryness (39 vs 60), stickiness (32 vs 54) and swallowing (39 vs 60) in patients who required adaptive replanning versus those who did not. No significant QoL trends were observable in the 31 patients who were evaluable at 9 months post treatment. The average time required for each step in the planning process was comparable for both the initial planning workflow and adaptive replanning process. Conclusions: The trigger criteria for replanning identified a population of patients who have significantly worsened quality of life due to radiation induced xerostomia. The benefits of adaptive replanning strategies based on weekly evaluation, binary thresholds and standard planning procedures is doubtful Clinical trial information: CTRI/2017/11/010683.
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Affiliation(s)
| | | | | | | | - B Arun
- Tata Medical Center, Kolkata, India
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Arun B, Viswanathan S, Subramanian V, Jose MT, Venkatraman B. Study of Triple to Double Coincidence Method for Tritium Measurements. Radiochemistry 2021. [DOI: 10.1134/s1066362221020120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Kamatchi K, Arun B, Tharani G, Yuvarani G, Vaishnavi G, Srilakshmi S, Kaviraja N. Effects of Swiss ball exercise and Pilates exercise on core muscle strengthening in college cricketers. Biomedicine (Taipei) 2020. [DOI: 10.51248/.v40i3.31] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
Introduction and Aim: Cricket is one of the most popular game in India played by men and women of all ages. Core stability is defined as the ability to control the position and movement of the trunk over the pelvis to allow optimum production, transfer and control of force and movement to the terminal segment. Major muscles involved are pelvic floor muscles, Transverse abdominis, multifidus, internal and external obliques, and rectus abdominis. Core is used to stabilize the thorax and the pelvis during dynamic movement. The study helps to compare the effectiveness of Swiss ball exercise and Pilates exercise on gaining core muscle strength. The aim of the study is to compare the effect of Swiss ball exercise and Pilates exercise on core muscle strengthening in college cricketers.
Materials and Methods: The design of the study is comparative type. The study was carried out in faculty of Physiotherapy, Dr.M.G.R. Educational and Research Institute. The study sample of 30 male college cricketers between the age group of 18 to 25 years are included in the study. Individuals with associated neuromuscular conditions, any injuries to lower limbs and any spinal injuries have been excluded in the study. Swiss ball and Pilates mat are the materials used. Sphygmomanometer is the outcome measure.30 male individuals between the age group of 18 to 25 years were divided into two groups, group A and group B. Individuals in the group A (n=15) received the Swiss ball exercise and group B (n=15) received Pilates exercise for 4 session/ week for 6 weeks.
Results: On comparing the mean values of group A and group B on double leg lowering test (DLLT), it shows significant decrease in the post test mean values but (group B- Pilates exercise) shows (30.60) which has the lower mean value is more effective than (group A- Swiss ball exercise) (46.80) at P ? 0.001. Hence, null hypothesis is rejected.
Conclusion: The study concluded that both the group was effective but while comparing Pilates exercise showed the potential treatment option than swiss ball exercise. Hence, Pilates exercise was effective on core muscle strengthening in college cricketers.
Keywords: Swiss ball; Pilates mat; core muscle; sphygmomanometer.
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Maulik S, Mallick I, Arunsingh M, Chatterjee S, Achari R, Chakraborty S, Arun B, Prasath S. PO-1196: long term results with moderately hypofractionated RT in high-risk localized prostate cancer. Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)01214-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Kaufman B, Han H, Arun B, Wildiers H, Friedlander M, Ayoub JP, Puhalla S, Maag D, Feng D, Fages S, Dieras V. 325P Characteristics of patients with HER2-negative advanced/metastatic gBRCA-associated breast cancer who achieved durable response in the phase III BROCADE3 study. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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15
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Ayoub JP, Friedlander M, Dieras V, Wildiers H, Arun B, Han H, Puhalla S, Shparyk Y, Jakobsen E, Kundu M, Wu M, Ratajczak C, Maag D, Kaufman B. 140O Veliparib plus carboplatin-paclitaxel in patients with HER2-negative advanced/metastatic gBRCA-associated breast cancer: Results in hormone receptor-positive and triple-negative breast cancer subgroups from the phase III BROCADE3 trial. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.03.241] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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16
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Litton J, Zhao L, White J, Arun B, Ravenberg E, Song X, Zhang J, Moulder S. 21P Germline and somatic variants in DNA DMAGE repair (DDR) genes in patients with untreated, early-stage triple negative breast cancers (TNBC). Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.03.157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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17
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Abuhadra N, Sun R, Litton J, Rauch G, Thompson A, Lim B, Adrada B, Mittendorf E, Damodaran S, Pitpitan R, Arun B, White J, Ravenberg E, Santiago L, Sahin A, Murthy R, Ueno N, Ibrahim N, Moulder S, Huo L. 98O The immunomodulatory (IM) signature enhances prediction of pathologic complete response (pCR) to neoadjuvant therapy (NAT) in triple negative breast cancers (TNBC) with moderate stromal tumour infiltrating lymphocytes (sTIL). Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.03.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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18
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Mukesh M, Arun B, Akshay VR, Vasundhara M. Tailoring the magnetic entropy change towards room temperature in Sr-site deficient La 0.6Dy 0.07Sr 0.33MnO 3 manganite. NEW J CHEM 2020. [DOI: 10.1039/d0nj00309c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The Sr-deficient compound could be a potential candidate for room temperature magnetic refrigeration applications.
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Affiliation(s)
- M. Mukesh
- Materials Science and Technology Division
- CSIR-National Institute for Interdisciplinary Science and Technology
- Trivandrum
- India
| | - B. Arun
- Materials Science and Technology Division
- CSIR-National Institute for Interdisciplinary Science and Technology
- Trivandrum
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - V. R. Akshay
- Materials Science and Technology Division
- CSIR-National Institute for Interdisciplinary Science and Technology
- Trivandrum
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - M. Vasundhara
- Materials Science and Technology Division
- CSIR-National Institute for Interdisciplinary Science and Technology
- Trivandrum
- India
- Academy of Scientific and Innovative Research (AcSIR)
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Chatterjee S, Mallick I, Chakraborty S, Prasath S, Arunsingh M, Achari RB, Arun B, Nallathambi C, Pattatheyil A, Sen S. Helical Radiotherapy in Early Laryngeal Cancers Could Lead to Excess Local Recurrence: Lessons From a Phase II Prospective Study. Clin Oncol (R Coll Radiol) 2019; 32:e67-e75. [PMID: 31704170 DOI: 10.1016/j.clon.2019.09.048] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 08/06/2019] [Accepted: 08/09/2019] [Indexed: 11/17/2022]
Abstract
AIMS A prospective study was conducted to investigate the feasibility and efficacy of carotid-sparing intensity-modulated radiotherapy (CSIMRT) in early glottic cancers (EGC). MATERIALS AND METHODS Eighteen patients underwent CSIMRT using helical tomotherapy to a dose of 55 Gy/20 fractions/4 weeks. Carotid intimal thickness (CIT) at prespecified carotid levels was measured using B-mode ultrasound at 6, 18 and 36 months. Serial changes in CIT were also measured in a control prospective cohort of 18 patients with head and neck cancers receiving bilateral neck nodal radiation over the same time period (54-60 Gy/30 fraction/6 weeks). The outcomes of 18 patients undergoing CSIMRT were compared against a retrospective consecutive cohort of 41 patients with EGC to confirm comparable local control. RESULTS No significant CIT differences were identified between patients undergoing CSIMRT versus the control group. However, four patients in the CSIMRT group had a local recurrence between 8 and 39 months. In all patients the epicentre of the recurrence was noted at the anterior part of the larynx. The 5-year local recurrence-free survival was 75.1% (95% confidence interval 56.6-99.7%). By contrast, in the group of EGC patients treated without carotid sparing, local recurrence was noted only in a single patient (patient treated with helical tomotherapy) and the 5-year local recurrence-free survival was 97.1% (95% confidence interval 91.8-100%) (Log-rank P = 0.01). CONCLUSION We failed to show the safety of CSIMRT using helical tomotherapy in this population of EGC patients. Use of CSIMRT also did not translate into a substantial reduction in CIT until 36 months. Use of CSIMRT using rotational arc techniques such as helical tomotherapy may be associated with a greater risk of local recurrence due to intrafractional motion interplay effects.
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Affiliation(s)
- S Chatterjee
- Department of Radiation Oncology, Tata Medical Center, Kolkata, India.
| | - I Mallick
- Department of Radiation Oncology, Tata Medical Center, Kolkata, India
| | - S Chakraborty
- Department of Radiation Oncology, Tata Medical Center, Kolkata, India
| | - S Prasath
- Department of Radiation Oncology, Tata Medical Center, Kolkata, India
| | - M Arunsingh
- Department of Radiation Oncology, Tata Medical Center, Kolkata, India
| | - R B Achari
- Department of Radiation Oncology, Tata Medical Center, Kolkata, India
| | - B Arun
- Department of Radiation Oncology, Tata Medical Center, Kolkata, India
| | - C Nallathambi
- Department of Radiation Oncology, Tata Medical Center, Kolkata, India
| | - A Pattatheyil
- Department of Surgical Oncology, Tata Medical Center, Kolkata, India
| | - S Sen
- Department of Radiology, Tata Medical Center, Kolkata, India
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20
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Mallick I, Arunsingh M, Chakraborty S, Arun B, Prasath S, Roy P, Dabkara D, Achari R, Chatterjee S, Gupta S. A Phase I/II Study of Stereotactic Hypofractionated Once-weekly Radiation Therapy (SHORT) for Prostate Cancer. Clin Oncol (R Coll Radiol) 2019; 32:e39-e45. [PMID: 31551125 DOI: 10.1016/j.clon.2019.09.046] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 07/30/2019] [Accepted: 08/09/2019] [Indexed: 12/25/2022]
Abstract
AIMS Stereotactic radiation therapy has been investigated predominantly in patients with low-intermediate-risk disease. We conducted a clinical trial of stereotactic hypofractionated radiation therapy delivered in once-weekly fractions on patients with all-risk non-metastatic disease to test feasibility, acute toxicities and patient-reported outcomes. MATERIALS AND METHODS In this phase I/II study, 30 patients with prostatic adenocarcinoma, any Gleason score, T1-4N0 and prostate-specific antigen ≤60 ng/ml were treated with volumetric intensity modulated arc radiation therapy to a dose of 35 Gy in five fractions delivered once weekly. Patients with high-risk disease also received elective nodal irradiation to a dose of 25 Gy in five fractions simultaneously. Androgen deprivation was offered to intermediate- and high-risk patients. The primary outcome was acute toxicity. Secondary outcome measures included biochemical control and late toxicity. Patient-reported outcomes were measured using the International Prostate Symptom Score and European Organization for Research and Treatment of Cancer (EORTC) Quality-of-Life Questionnaire (QLQ). RESULTS All 30 patients completed treatment per-protocol. Most patients had T3 (60%) and Gleason 7 (50%) tumours. The median prostate-specific antigen was 17 ng/ml. High-risk disease was present in 20 patients (66.7%). There was a low incidence of acute toxicities (grade 2 + urinary 3.3%, grade 2 rectal 0%). Within the EORTC QLQ framework, only the urinary symptom score showed a clinically meaningful worsening from a mean of 20/100 at baseline to 34/100 at the end of treatment (P < 0.001), but reduced to 24/100 at 6 months (P = 0.08). With a median follow-up of 41.5 months, two patients each reported grade 2 late urinary and rectal toxicity. The 3- and 4-year biochemical control rates were 96.7 and 87.9%, respectively. CONCLUSION In a cohort of mainly high-risk cancers, stereotactic once-weekly radiation therapy was easy to implement and well tolerated, with a low incidence of acute and late toxicity and excellent biochemical control.
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Affiliation(s)
- I Mallick
- Department of Radiation Oncology, Tata Medical Center, Kolkata, India.
| | - M Arunsingh
- Department of Radiation Oncology, Tata Medical Center, Kolkata, India
| | - S Chakraborty
- Department of Radiation Oncology, Tata Medical Center, Kolkata, India
| | - B Arun
- Department of Radiation Oncology, Tata Medical Center, Kolkata, India
| | - S Prasath
- Department of Radiation Oncology, Tata Medical Center, Kolkata, India
| | - P Roy
- Department of Pathology, Tata Medical Center, Kolkata, India
| | - D Dabkara
- Department of Medical Oncology, Tata Medical Center, Kolkata, India
| | - R Achari
- Department of Radiation Oncology, Tata Medical Center, Kolkata, India
| | - S Chatterjee
- Department of Radiation Oncology, Tata Medical Center, Kolkata, India
| | - S Gupta
- Department of Urological Surgery, Tata Medical Center, Kolkata, India
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21
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Arun B, Vijayalakshmi I, Ramani Y, Viswanathan S, Jose MT, Baskaran R, Venkatraman B. Optimization of 14C LSC measurement using CO2 absorption technique. RADIOCHIM ACTA 2019. [DOI: 10.1515/ract-2018-3042] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Liquid Scintillation Counting (LSC) is the most commonly used technique for quantification of 14C in the environmental samples. An optimization study was carried out for the analysis of 14C with the direct carbon dioxide absorption method using LSC. The absorption capacity of CO2 in varying amounts of CO2 absorber Carbo-Sorb E to Permafluor scintillation cocktail volumes is found to be 5.33 ± 0.053 mmol/mL of Carbo-Sorb E. The optimum volume ratio of Carbo-Sorb E to Permafluor scintillation cocktail is found to be 1:1 based on the minimum detection activity (MDA) values. The effect of CO2 loading in the optimized absorption mixture shows that with an increasing CO2 amount (up to saturation) there is an increase in tSIE values which is due to an increase of Compton scattering effect in the CO2 loaded samples. The region of interest (ROI) for 14C measurement is found to be 10–96 keV based on the figure of merit values and the efficiency for detecting 14C is 83.45 % in the optimized ROI window.
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Affiliation(s)
- B. Arun
- Health, Safety and Environment Group, Indira Gandhi Centre for Atomic Research , Kalpakkam 603102, Tamilnadu , India
- Homi Bhabha National Institute, Indira Gandhi Centre for Atomic Research , Kalpakkam 603102, Tamilnadu , India
| | - I. Vijayalakshmi
- Health, Safety and Environment Group, Indira Gandhi Centre for Atomic Research , Kalpakkam 603102, Tamilnadu , India
| | - Yuvaraj Ramani
- Health, Safety and Environment Group, Indira Gandhi Centre for Atomic Research , Kalpakkam 603102, Tamilnadu , India
| | - S. Viswanathan
- Health, Safety and Environment Group, Indira Gandhi Centre for Atomic Research , Kalpakkam 603102, Tamilnadu , India
| | - M. T. Jose
- Health, Safety and Environment Group, Indira Gandhi Centre for Atomic Research , Kalpakkam 603102, Tamilnadu , India
- Homi Bhabha National Institute, Indira Gandhi Centre for Atomic Research , Kalpakkam 603102, Tamilnadu , India , Tel.: +91 44 27480352, Fax: +91 44 27480235
| | - R. Baskaran
- Health, Safety and Environment Group, Indira Gandhi Centre for Atomic Research , Kalpakkam 603102, Tamilnadu , India
- Homi Bhabha National Institute, Indira Gandhi Centre for Atomic Research , Kalpakkam 603102, Tamilnadu , India
| | - B. Venkatraman
- Health, Safety and Environment Group, Indira Gandhi Centre for Atomic Research , Kalpakkam 603102, Tamilnadu , India
- Homi Bhabha National Institute, Indira Gandhi Centre for Atomic Research , Kalpakkam 603102, Tamilnadu , India
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Arun B, Akshay VR, Vasundhara M. Observation of enhanced magnetic entropy change near room temperature in Sr-site deficient La 0.67Sr 0.33MnO 3 manganite. RSC Adv 2019; 9:23598-23606. [PMID: 35530575 PMCID: PMC9069490 DOI: 10.1039/c9ra04973h] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Accepted: 07/24/2019] [Indexed: 11/25/2022] Open
Abstract
The effect of Sr-site deficiency on the structural, magnetic and magnetic entropy change of La0.67Sr0.33−yMnO3−δ (y = 0.18 and 0.27) compounds was investigated. The compounds were prepared by the conventional solid-state route and powder X-ray diffraction technique along with Rietveld refinement was carried out to confirm the structure and phase purity. Lattice parameters and unit cell volumes are found to increase with the increase in Sr-deficiency due to the electrostatic repulsion from the neighbouring oxygen ions. A mixed valence state of Mn2+/Mn3+/Mn4+ was confirmed using the X-ray photoelectron spectroscopy technique and it was observed that the change of state from Mn3+ + Mn3+ pairs to Mn2+ + Mn4+ pairs is different for both the studied compounds. A second order ferromagnetic–paramagnetic transition with an enhancement in magnetization in comparison to the pristine compound (La0.67Sr0.33MnO3) was observed due to multiple double exchange interactions. The La0.67Sr0.15□0.18MnO3−δ compound exhibits a magnetic entropy change (ΔSM) of 4.61 J kg−1 K−1 at 310 K, and the La0.67Sr0.06□0.27MnO3−δ compound exhibits a ΔSM of 4.11 J kg−1 K−1 at 276 K under a field of 50 kOe. In our previous work, we reported a large value of ΔSM but at higher temperatures, around 350 K. However, in the present case, we have achieved a near room temperature (310 K) MCE with a significant ΔSM value (4.61 J kg−1 K−1) which is larger than that reported for numerous perovskite manganites. Thus, the studied material could be a potential candidate for room temperature magnetic refrigeration applications. The effect of Sr-site deficiency on the structural, magnetic and magnetic entropy change of La0.67Sr0.33−yMnO3−δ (y = 0.18 and 0.27) compounds was investigated.![]()
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Affiliation(s)
- B Arun
- Materials Science and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology Trivandrum India +91 4712515491.,Academy of Scientific and Innovative Research (AcSIR), CSIR-Human Resource Development Centre Ghaziabad Uttar Pradesh India
| | - V R Akshay
- Materials Science and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology Trivandrum India +91 4712515491.,Academy of Scientific and Innovative Research (AcSIR), CSIR-Human Resource Development Centre Ghaziabad Uttar Pradesh India
| | - M Vasundhara
- Materials Science and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology Trivandrum India +91 4712515491.,Academy of Scientific and Innovative Research (AcSIR), CSIR-Human Resource Development Centre Ghaziabad Uttar Pradesh India
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23
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Akshay VR, Arun B, Mandal G, Vasundhara M. Visible range optical absorption, Urbach energy estimation and paramagnetic response in Cr-doped TiO 2 nanocrystals derived by a sol-gel method. Phys Chem Chem Phys 2019; 21:12991-13004. [PMID: 31165820 DOI: 10.1039/c9cp01351b] [Citation(s) in RCA: 85] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We have carried out a detailed study of the morphological, structural, optical and magnetic properties of Cr doped TiO2 nanocrystals with doping concentrations varying from 3 to 12 atomic weight%. The results obtained from transmission electron microscopy analysis, size-strain plots of all the Cr-doped samples and crystallite size estimation reveal the particle size of the prepared nanocrystals to be well below 10 nm, which is observed to exhibit a decreasing trend with an increase in the Cr dopant concentration. All the samples crystallize in the anatase tetragonal phase of TiO2, which is confirmed from the Rietveld refinement of the X-ray diffraction patterns and the different modes present in the Raman spectra. The Eg(1) mode shows a clear red shift and broadening with increase in the Cr concentration, which indicates the replacement of Ti ions with Cr ions in the TiO2 lattice. The possibility of the presence of different functional groups present is verified by Fourier transform infra-red spectroscopy. The presence of Cr3+ and Ti4+ is confirmed from the X-ray photoelectron spectroscopy (XPS) results suggesting the formation of oxygen vacancies to compensate for the charge neutrality. The XPS results validate the Cr3+ existence in the Cr:TiO2 system and corroborate with a slight peak shift towards lower diffraction angle and further confirm the substitutional doping in the present case. Enhanced visible range optical absorption and a clear red shift associated with the absorption edge also suggest the incorporation of Cr3+ ions into the host system. The estimated band-gap of Cr-doped TiO2 nanocrystals reveals a decreasing trend with increasing Cr concentration. The Urbach energy associated with all the Cr-doped samples signifies the presence of oxygen vacancy related defects in the present system, which is further verified using photoluminescence (PL) spectra, and the deconvolution of the PL spectra provides an insight into the oxygen vacancy defects associated with the system. Paramagnetic (PM) behaviour is observed with an increase in the PM moment, suggesting the increase in isolated Cr ions with increase in the Cr concentration, which is further explained using a bound magnetic polaron (BMP) model. Isolated BMP formation could be the reason for the observed PM behavior of the present system, where the trapping of 3d electrons associated with Cr3+ in the vacancy sites could ultimately lead to fewer overlapped BMPs, yielding a net PM moment. The present Cr:TiO2 system could be modified with tailored optical and magnetic properties for functional applications such as magneto-optics and optoelectronic devices.
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Affiliation(s)
- V R Akshay
- Materials Science and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Trivandrum-695 019, India.
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24
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Arun B, Vijayalakshmi I, Sivasubramanian K, Jose MT. Optimization of Liquid Scintillation Counter for Tritium Estimation in Water Samples. Radiochemistry 2019. [DOI: 10.1134/s1066362219010090] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Shrimali RK, Nallathambi C, Saha A, Das A, Prasath S, Mahata A, Arun B, Mallick I, Achari R, Dabkara D, Thambudorai R, Chatterjee S. Radical radiotherapy or chemoradiotherapy for inoperable, locally advanced, non-small cell lung cancer: Analysis of patient profile, treatment approaches, and outcomes for 213 patients at a tertiary cancer center. Indian J Cancer 2019; 55:125-133. [PMID: 30604722 DOI: 10.4103/ijc.ijc_469_17] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION Radical radiotherapy (RT) with curative intent, with or without chemotherapy, is the standard treatment for inoperable, locally advanced nonsmall cell lung cancer (NSCLC). MATERIALS AND METHODS We retrospectively reviewed the data for all 288 patients who presented with inoperable, locally advanced NSCLC at our institution, between May 2011 and December 2016. RESULTS RT alone or sequential chemoradiotherapy (SCRT) or concurrent chemoradiotherapy (CCRT) was used for 213 patients. Median age was 64 years (range: 27-88 years). Stage-III was the biggest stage group with 189 (88.7%) patients. Most patients with performance status (PS) 0 or 1 received CCRT, whereas most patients with PS 2 received RT alone (P < 0.001). CCRT, SCRT, and RT alone were used for 120 (56.3%), 24 (11.3%), and 69 (32.4%) patients, respectively. A third of all patients (32.4%) required either volumetric-modulated arc radiotherapy (VMAT) or tomotherapy. Median follow-up was 16 months. The median progression-free survival and median overall survival (OS) were 11 and 20 months, respectively. One-year OS and 2-year OS were 67.9% and 40.7%, respectively. Patients treated using CCRT lived significantly longer with a median survival of 28 months, compared with 13 months using SCRT and RT alone (P < 0.001). On multivariate analysis, OS was significantly affected by age, stage group, treatment approach, and response to treatment. CONCLUSION RT including CCRT is feasible, safe, and well tolerated in our patient population and results in survival benefits comparable with published literature. CCRT should be considered for all patients with inoperable, locally advanced NSCLC, who are fit and have good PS.
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Affiliation(s)
- Raj Kumar Shrimali
- Department of Radiation Oncology, Tata Medical Center, Kolkata, West Bengal, India
| | - Chandran Nallathambi
- Department of Radiation Oncology, Tata Medical Center, Kolkata, West Bengal, India
| | - Animesh Saha
- Department of Radiation Oncology, Tata Medical Center, Kolkata, West Bengal, India
| | - Avipsa Das
- Department of Radiation Oncology, Tata Medical Center, Kolkata, West Bengal, India
| | - Sriram Prasath
- Department of Radiotherapy Physics, Tata Medical Center, Kolkata, West Bengal, India
| | - Anurupa Mahata
- Department of Radiotherapy Physics, Tata Medical Center, Kolkata, West Bengal, India
| | - B Arun
- Department of Radiotherapy Physics, Tata Medical Center, Kolkata, West Bengal, India
| | - Indranil Mallick
- Department of Radiation Oncology, Tata Medical Center, Kolkata, West Bengal, India
| | - Rimpa Achari
- Department of Radiation Oncology, Tata Medical Center, Kolkata, West Bengal, India
| | - Deepak Dabkara
- Department of Medical Oncology, Tata Medical Center, Kolkata, West Bengal, India
| | - Robin Thambudorai
- Department of Thoracic Surgery, Tata Medical Center, Kolkata, West Bengal, India
| | - Sanjoy Chatterjee
- Department of Radiation Oncology, Tata Medical Center, Kolkata, West Bengal, India
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26
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Akshay VR, Arun B, Mandal G, Vasundhara M. Impact of Mn-dopant concentration in observing narrowing of band-gap, urbach tail and paramagnetism in anatase TiO 2 nanocrystals. NEW J CHEM 2019. [DOI: 10.1039/c9nj02884f] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
In addition to the numerous applications of Mn-doped TiO2, it could be a potential candidate as a dilute magnetic semiconductor.
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Affiliation(s)
- V. R. Akshay
- Materials Science and Technology Division
- CSIR-National Institute for Interdisciplinary Science and Technology
- Trivandrum – 695 019
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - B. Arun
- Materials Science and Technology Division
- CSIR-National Institute for Interdisciplinary Science and Technology
- Trivandrum – 695 019
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Guruprasad Mandal
- Centre for Rural and Cryogenic Technologies
- Jadavpur University
- Kolkata-700032
- India
| | - M. Vasundhara
- Materials Science and Technology Division
- CSIR-National Institute for Interdisciplinary Science and Technology
- Trivandrum – 695 019
- India
- Academy of Scientific and Innovative Research (AcSIR)
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27
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Akshay VR, Arun B, Mandal G, Chanda A, Vasundhara M. Significant reduction in the optical band-gap and defect assisted magnetic response in Fe-doped anatase TiO2 nanocrystals as dilute magnetic semiconductors. NEW J CHEM 2019. [DOI: 10.1039/c9nj00275h] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The nature of BMPs, whether overlapped or isolated, determines the magnetic behavior of Fe-doped TiO2.
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Affiliation(s)
- V. R. Akshay
- Materials Science and Technology Division
- CSIR-National Institute for Interdisciplinary Science and Technology
- India
- Academy of Scientific and Innovative Research (AcSIR)
- CSIR-Human Resource Development Centre
| | - B. Arun
- Materials Science and Technology Division
- CSIR-National Institute for Interdisciplinary Science and Technology
- India
- Academy of Scientific and Innovative Research (AcSIR)
- CSIR-Human Resource Development Centre
| | - Guruprasad Mandal
- Centre for Rural and Cryogenic Technologies
- Jadavpur University
- Kolkata-700032
- India
| | - Anupama Chanda
- Department of Physics
- Dr Hari Singh Gour Central University
- Sagar
- India
| | - M. Vasundhara
- Materials Science and Technology Division
- CSIR-National Institute for Interdisciplinary Science and Technology
- India
- Academy of Scientific and Innovative Research (AcSIR)
- CSIR-Human Resource Development Centre
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Akshay VR, Arun B, Mandal G, Vasundhara M. Structural, optical and magnetic behavior of sol–gel derived Ni-doped dilute magnetic semiconductor TiO2 nanocrystals for advanced functional applications. Phys Chem Chem Phys 2019; 21:2519-2532. [DOI: 10.1039/c8cp06875e] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Defect engineering of Ni-doped TiO2 could tailor the magnetic properties through BMP interactions, which is advantageous for spintronics applications.
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Affiliation(s)
- V. R. Akshay
- Materials Science and Technology Division
- CSIR-National Institute for Interdisciplinary Science and Technology
- Trivandrum – 695 019
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - B. Arun
- Materials Science and Technology Division
- CSIR-National Institute for Interdisciplinary Science and Technology
- Trivandrum – 695 019
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Guruprasad Mandal
- Centre for Rural and Cryogenic Technologies
- Jadavpur University
- Kolkata-700032
- India
| | - M. Vasundhara
- Materials Science and Technology Division
- CSIR-National Institute for Interdisciplinary Science and Technology
- Trivandrum – 695 019
- India
- Academy of Scientific and Innovative Research (AcSIR)
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Akshay VR, Arun B, Dash S, Patra AK, Mandal G, Mutta GR, Chanda A, Vasundhara M. Defect mediated mechanism in undoped, Cu and Zn-doped TiO 2 nanocrystals for tailoring the band gap and magnetic properties. RSC Adv 2018; 8:41994-42008. [PMID: 35558798 PMCID: PMC9092119 DOI: 10.1039/c8ra07287f] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Accepted: 11/24/2018] [Indexed: 01/05/2023] Open
Abstract
Oxide based dilute magnetic semiconductor materials have been of great interest over the years due to their potential use in spintronic devices. However, the variations in the magnetic behavior of the materials have raised concerns regarding the origin of ferromagnetic properties which still needs to be explored. Manipulation of magnetic behavior in oxide based dilute magnetic semiconductors has become a challenge due to the interplay of intrinsic defects present in the material. TiO2 nanocrystals have been studied largely due to their challenging optical and magnetic properties. The present investigation studies in detail the structural, morphological, optical and magnetic behavior of non-magnetic element (Cu and Zn) doped TiO2, synthesized via a simple sol-gel technique. X-ray diffraction patterns and Raman spectra confirm the anatase phase and high resolution transmission electron microscopic results clearly indicate the formation of highly crystalline nanocrystals in all the samples with particle size ranging from 5-15 nm. Energy dispersive X-ray fluorescence spectroscopic studies reveal the compositional homogeneity of all the investigated samples. The presence of functional groups and molecular interactions were identified by Fourier transform infrared spectroscopy. Optical properties were studied through UV-visible and photoluminescence spectroscopy from which a significant reduction in band gap in Cu-doped TiO2 nanocrystals was found. X-ray photoelectron spectra confirm the presence of Ti3+, Cu2+, Cu+ and Zn2+ in Cu and Zn-doped TiO2 samples. The concept of bound magnetic polarons associated with the vacancy defects at both Ti, Cu, Zn and oxygen sites is used to explain the induced weak ferromagnetic behavior in undoped, Cu and Zn-doped TiO2 at room temperature. The overlapping of bound magnetic polarons could be the source of ferromagnetism irrespective of the non-magnetic nature of the dopant ion. The concentration of bound magnetic polarons is estimated using a Langevin fit and a detailed understanding of the variation of defect mediated magnetic properties is established with the help of PL analysis. A significant reduction in bandgap along with enhanced magnetization observed in the Cu-doped TiO2 material makes it suitable as a potential candidate for spintronics and magneto-optics applications. Room temperature magnetic properties of the Zn doped sample show a diamagnetic tail which is explained based on the defect centers and oxidation states of dopant ions present in the sample which is further verified with the help of XPS results.
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Affiliation(s)
- V R Akshay
- Materials Science and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology Trivandrum-695 019 India
- Academy of Scientific and Innovative Research (AcSIR), CSIR Trivandrum India
| | - B Arun
- Materials Science and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology Trivandrum-695 019 India
- Academy of Scientific and Innovative Research (AcSIR), CSIR Trivandrum India
| | - Shubhra Dash
- Department of Physics, Central University of Rajasthan India
| | - Ajit K Patra
- Department of Physics, Central University of Rajasthan India
| | - Guruprasad Mandal
- Centre for Rural and Cryogenic Technologies, Jadavpur University Kolkata-700032 India
| | - Geeta R Mutta
- Nano-Materials Laboratory, School of Engineering and Physical Sciences, Heriot Watt University Edinburgh EH14 4AS UK
| | - Anupama Chanda
- Department of Physics, Dr Hari Singh Gour Central University Sagar Madhya Pradesh India
| | - M Vasundhara
- Materials Science and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology Trivandrum-695 019 India
- Academy of Scientific and Innovative Research (AcSIR), CSIR Trivandrum India
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Shrimali RK, Chakraborty S, Prasath S, Arun B, Chatterjee S. Impact of modern radiotherapy techniques on survival outcomes for unselected patients with large volume non-small cell lung cancer. Br J Radiol 2018; 92:20180928. [PMID: 30457882 DOI: 10.1259/bjr.20180928] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
OBJECTIVE: Intensity modulated radiotherapy (IMRT) is used, where necessary, for bulky or complex-shaped, locally advanced, non-small cell lung cancer (NSCLC). We evaluate our real-world experience with radical radiotherapy including concurrent chemoradiation (CCRT), and analyse the impact of IMRT on survival outcomes in patients with larger volume disease. METHODS: All patients treated between May 2011 and December 2017 were included. Analyses were conducted for factors affecting survival, including large volume disease that was defined as planning target volume (PTV) > 500 cc. RESULTS: In 184 patients with large volume disease, the median overall survival was 19.2 months, compared to 22 months seen with the overall cohort of 251 patients who received radical radiotherapy. PTV and using CCRT were significant predictors for survival. IMRT was used in 93 (50.5%) of 184 patients with large PTV. The patients treated using IMRT had significantly larger disease volume (median PTV = 859 vs 716 cc; p-value = 0.009) and more advanced stage (proportion of Stage IIIB: 56 vs 29%; p-value = 0.003) compared to patients treated with three-dimensional conformal radiotherapy. Yet, the outcomes with IMRT were non-inferior to those treated with 3DCRT. CCRT was used in 103 (56%) patients with large volume disease and resulted in a significantly better median survival of 24.9 months. The proportional benefit from CCRT was also greater than in the overall cohort. CONCLUSION: Despite being used for larger volume and more advanced NSCLC, inverse-planned IMRT resulted in non-inferior survival. ADVANCES IN KNOWLEDGE: IMRT enables the safe use of curative CCRT for large-volume, locally-advanced NSCLC.
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Affiliation(s)
- Raj Kumar Shrimali
- 1 Department of Radiation Oncology, Tata Medical Center, Kolkata , India
| | - Santam Chakraborty
- 1 Department of Radiation Oncology, Tata Medical Center, Kolkata , India
| | - Sriram Prasath
- 1 Department of Radiation Oncology, Tata Medical Center, Kolkata , India
| | - B Arun
- 1 Department of Radiation Oncology, Tata Medical Center, Kolkata , India
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Arun B, Akshay VR, Vasundhara M. Observation of enhanced magnetocaloric properties with A-site deficiency in La 0.67Sr 0.33MnO 3 manganite. Dalton Trans 2018; 47:15512-15522. [PMID: 30338325 DOI: 10.1039/c8dt03538e] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this paper, we have studied the effect on the structural, magnetic and magnetocaloric properties of La and Sr-deficiencies in the La0.67Sr0.33MnO3 compound. Rietveld refinement of the X-ray powder diffraction patterns confirms that all of the compounds have crystallized into a rhombohedral crystal symmetry with an R3[combining macron]c space group. X-ray photoelectron spectroscopy measurements revealed that the parent compound has a mixed valance of Mn3+/Mn4+, whereas Mn2+/Mn3+/Mn4+ mixed valency is found in the case of both La and Sr-deficient compounds. The La0.67Sr0.33MnO3 compound shows a magnetic transition temperature of 365 K, while the La and Sr-deficient compounds exhibit transition temperatures of 367 K and 355 K, respectively. Among the studied compounds, the Sr-deficient compound shows the highest magnetic entropy change (ΔSM) of 5.08 J kg-1 K-1 at 352 K for a 50 kOe field with a relative cooling power (RCP) of 142 J kg-1 and an adiabatic temperature change of 3.48 K, while the parent and La-deficient compounds exhibit a -ΔSM of 4.78 J kg-1 K-1 at 364 K and of 4.12 J kg-1 K-1 at 364 K, respectively. The temperature dependence of the electrical resistivity with and without applied magnetic fields reveals that the La-deficient compound has one order and the Sr-deficient compound has two orders of suppression in the electrical resistivity. Thus, the Sr-deficient compound shows promising behaviour for reduction of the magnetic transition temperature towards room temperature, along with an increase in the ΔSM values, and enhancement in the electrical conductivity. Therefore, it could be possible to tune the transition temperature towards room temperature without compromising the magnetic entropy change in order to develop materials for magnetic refrigeration applications.
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Affiliation(s)
- B Arun
- Materials Science and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Trivandrum, India
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Shrimali RK, Chakraborty S, Bhattacharyya T, Mallick I, Achari RB, Prasath S, Arun B, Mahata A, Vidhya Shree M, Vishnupriya E, Chatterjee S. Development and validation of a decision support tool to select IMRT as radiotherapy treatment planning modality for patients with locoregionally advanced non-small cell lung cancers (NSCLC). Br J Radiol 2018; 92:20180431. [PMID: 30387364 DOI: 10.1259/bjr.20180431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVE: Radiation planning for locally-advanced non-small cell lung cancer (NSCLC) can be time-consuming and iterative. Many cases cannot be planned satisfactorily using multisegment three-dimensional conformal radiotherapy (3DCRT). We sought to develop and validate a predictive model which could estimate the probability that acceptable target volume coverage would need intensity modulated radiotherapy (IMRT). METHODS: Variables related to the planning target volume (PTV) and topography were identified heuristically. These included the PTV, it's craniocaudal extent, the ratio of PTV to total lung volume, distance of the centroid of the PTV from the spinal canal, and the extent PTV crossed the midline. Metrics were chosen such that they could be measured objectively, quickly and reproducibly. A logistic regression model was trained and validated on 202 patients with NSCLC. A group of patients who had both complex 3DCRT and IMRT planned was then used to derive the utility of the use of such a model in the clinic based on the time taken for planning such complex 3DCRT. RESULTS: Of the 202 patients, 93 received IMRT, as they had larger volumes crossing midline. The final model showed a good rank discrimination (Harrell's C-index 0.84) and low calibration error (mean absolute error of 0.014). Predictive accuracy in an external dataset was 92%. The final model was presented as a nomogram. Using this model, the dosimetrist can save a median planning time of 168 min per case. CONCLUSION: We developed and validated a data-driven, decision aid which can reproducibly determine the best planning technique for locally-advanced NSCLC. ADVANCES IN KNOWLEDGE: Our validated, data-driven decision aid can help the planner to determine the need for IMRT in locally advanced NSCLC saving significant planning time in the process.
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Affiliation(s)
- Raj Kumar Shrimali
- 1 Department of Radiation Oncology, Tata Medical Center , Rajarhat, Kolkata , India
| | - Santam Chakraborty
- 1 Department of Radiation Oncology, Tata Medical Center , Rajarhat, Kolkata , India
| | - Tapesh Bhattacharyya
- 1 Department of Radiation Oncology, Tata Medical Center , Rajarhat, Kolkata , India
| | - Indranil Mallick
- 1 Department of Radiation Oncology, Tata Medical Center , Rajarhat, Kolkata , India
| | - Rimpa Basu Achari
- 1 Department of Radiation Oncology, Tata Medical Center , Rajarhat, Kolkata , India
| | - Sriram Prasath
- 1 Department of Radiation Oncology, Tata Medical Center , Rajarhat, Kolkata , India
| | - B Arun
- 1 Department of Radiation Oncology, Tata Medical Center , Rajarhat, Kolkata , India
| | - Anurupa Mahata
- 1 Department of Radiation Oncology, Tata Medical Center , Rajarhat, Kolkata , India
| | - M Vidhya Shree
- 1 Department of Radiation Oncology, Tata Medical Center , Rajarhat, Kolkata , India
| | - E Vishnupriya
- 1 Department of Radiation Oncology, Tata Medical Center , Rajarhat, Kolkata , India
| | - Sanjoy Chatterjee
- 1 Department of Radiation Oncology, Tata Medical Center , Rajarhat, Kolkata , India
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Shrimali RK, Arunsingh M, Reddy GD, Mandal S, Arun B, Prasath S, Sinha S, Mallick I, Achari R, Chatterjee S. Actual gains in dosimetry and treatment delivery efficiency from volumetric modulated arc radiotherapy for inoperable, locally advanced lung cancer over five-field forward-planned intensity-modulated radiotherapy. Indian J Cancer 2018; 54:155-160. [PMID: 29199680 DOI: 10.4103/ijc.ijc_79_17] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
AIMS Volumetric modulated arc radiotherapy (VMAT) is used for inoperable, locally advanced nonsmall cell lung cancer, where three-dimensional conformal radiotherapy (3D-CRT) cannot yield an acceptable plan. METHODS The planning and treatment data were prospectively collected on the first 18 patients treated using VMAT plans. We analyzed the actual dosimetric gain and impact on treatment, compared with complex multisegment 3D-CRT (five-field forward-planned intensity-modulated radiotherapy [IMRT]) that were generated for treatment. Proportion of planning target volume (PTV) receiving 95% dose (PTV-V95%) conformity index (CI), conformity number (CN), dose homogeneity index (DHI), monitor units (MUs), and treatment time were also analyzed. RESULTS The PTV coverage (PTV-V95%) was improved from a median of 91.41% for 5-F forward-IMRT to 98.25% for VMAT (P < 0.001). The CI improved with a mean of 1.12 for VMAT and 1.31 for 5-F forward-IMRT (P < 0.001). The mean DHI improved from 1.15 for forward-IMRT to 1.08 for VMAT (P < 0.001). The mean CN improved from 0.62 for forward-IMRT to 0.87 for VMAT (P < 0.001). No significant increase in the low-dose bath (V5, V10 and mean lung dose) to the lung was seen. Significantly higher number of MUs (P < 0.001) and shorter treatment delivery times (P = 0.03) were seen with VMAT. CONCLUSION VMAT resulted in improvement in target volume coverage, demonstrated by PTV-V95%, CI, CN, and DHI, without any increase in the low-dose bath to the lung. For conventional fractionation, VMAT requires more MUs (P < 0.001) but has a shorter treatment delivery time (P = 0.03) per fraction.
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Affiliation(s)
- R K Shrimali
- Department of Radiation Oncology, Tata Medical Centre, Kolkata, West Bengal, India
| | - M Arunsingh
- Department of Radiation Oncology, Tata Medical Centre, Kolkata, West Bengal, India
| | - G D Reddy
- Department of Radiation Oncology, Tata Medical Centre, Kolkata, West Bengal, India
| | - S Mandal
- Department of Medical Physics, Tata Medical Centre, Kolkata, West Bengal, India
| | - B Arun
- Department of Medical Physics, Tata Medical Centre, Kolkata, West Bengal, India
| | - S Prasath
- Department of Medical Physics, Tata Medical Centre, Kolkata, West Bengal, India
| | - S Sinha
- Department of Medical Statistics, Tata Medical Centre, Kolkata, West Bengal, India
| | - I Mallick
- Department of Radiation Oncology, Tata Medical Centre, Kolkata, West Bengal, India
| | - R Achari
- Department of Radiation Oncology, Tata Medical Centre, Kolkata, West Bengal, India
| | - S Chatterjee
- Department of Radiation Oncology, Tata Medical Centre, Kolkata, West Bengal, India
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Chatterjee S, Nallathambi C, Arunsingh M, Mallick I, Prasath S, Arun B, Shrimali R, Achari R, Sen S. EP-1146: Carotid Artery Sparing Radiotherapy in Early Laryngeal Cancers – Final Results of a Phase 2 Study. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)31456-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Yam C, Gutierrez Barrera A, Huang D, Lin X, Litton JK, Arun B. Abstract P3-04-11: Implications of somatic TP53 and PIK3CA mutations in patients with metastatic breast cancer who underwent germline BRCA testing. Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-p3-04-11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: TP53 and PIK3CA are the most frequently mutated genes in breast cancer. However, there is limited data evaluating the impact of somatic mutations in TP53 and/or PIK3CA patients (pts) with metastatic breast cancer (MBC) who have undergone germline testing for BRCA mutations. Here, we report the frequency of somatic TP53 and PIK3CA mutations in MBC pts who previously underwent germline BRCA (gBRCA) testing and evaluate their impact on long-term outcomes.
Methods: We identified pts with MBC from our prospectively maintained high risk genetics database who underwent gBRCA testing and had somatic mutation testing performed for TP53 and/or PIK3CA through hotspot sequencing of single genes or as part of a next generation sequencing panel. Univariable logistic regression was used to evaluate associations between clinicopathological characteristics, including gBRCA status, and the presence of somatic TP53 and PIK3CA mutations. Overall survival (OS) was defined as the time from diagnosis to death from any cause. Multivariable cox regression analysis was used to identify independent predictors of OS.
Results: 104 pts met all inclusion criteria. Somatic mutations in TP53 and PIK3CA were found in 46% (39/84) and 23% (24/104) of tested pts, respectively. Associations between clinicopathological characteristics and somatic TP53 and PIK3CA mutation status are summarized in Table 1. Pts with hormone receptor positive (HR+) disease were less likely to have TP53 mutations (odds ratio [OR]: 0.28, 95% confidence interval [CI]: 0.11-0.70, p=0.007) but more likely to harbor PIK3CA mutations (OR: 3.27, 95% CI: 1.11-9.62, p=0.031). There were no significant associations between gBRCA mutation status and somatic TP53 or PIK3CA mutations. On multivariable analysis, somatic TP53 mutations (adjusted hazard ratio [aHR]: 1.98, 95% CI: 1.10-3.58, p=0.023) and de novo metastatic disease (aHR=2.88, 95% CI: 1.26-6.58, p=0.012) independently predicted poorer OS, while HR+ disease (aHR: 0.40, 95% CI: 0.21-0.74, p=0.004) and HER2+ disease (aHR: 0.33, 95% CI: 0.13-0.83, p=0.019) were significantly associated with improved OS. PIK3CA mutations (aHR: 1.20, 95% CI: 0.59-2.44, p=0.62) and gBRCA mutations (aHR: 0.78, 95% CI: 0.33-1.83, p=0.57) did not significantly impact OS in this study.
Conclusion: In this study, somatic TP53 mutations independently predicted worse OS in pts with MBC after adjusting for significant covariates, including gBRCA mutation status. These findings should be validated in a larger cohort of pts.
Table 1: Association between patient characteristics and somatic TP53 and PIK3CA mutation status TP53 PIK3CA TP53 mutant (n=39)TP53 wild type (n=45)p valuePIK3CA mutant (n=24)PIK3CA wild type (n=80)p valueMedian Age – years (Interquartile Range)37 (33-47)39 (36-44)0.93739 (34-46)38 (34-43)0.494gBRCA mutant – n(%)3 (8)11 (24)0.0511 (4)15 (19)0.116ER/PR positive - n(%)17 (44)33 (73)0.00719 (79)43 (54)0.031HER2 positive - n(%)8 (21)6 (13)0.3827 (29)10 (13)0.060De Novo Metastatic – n(%)6 (15)8 (18)0.7693 (13)16 (20)0.409Visceral Disease – n(%)23 (59)26 (58)0.91215 (63)47 (59)0.743
Citation Format: Yam C, Gutierrez Barrera A, Huang D, Lin X, Litton JK, Arun B. Implications of somatic TP53 and PIK3CA mutations in patients with metastatic breast cancer who underwent germline BRCA testing [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr P3-04-11.
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Affiliation(s)
- C Yam
- The University of Texas MD Anderson Cancer Center, Houston, TX; Duke-NUS Medical School, Singapore, Singapore
| | - A Gutierrez Barrera
- The University of Texas MD Anderson Cancer Center, Houston, TX; Duke-NUS Medical School, Singapore, Singapore
| | - D Huang
- The University of Texas MD Anderson Cancer Center, Houston, TX; Duke-NUS Medical School, Singapore, Singapore
| | - X Lin
- The University of Texas MD Anderson Cancer Center, Houston, TX; Duke-NUS Medical School, Singapore, Singapore
| | - JK Litton
- The University of Texas MD Anderson Cancer Center, Houston, TX; Duke-NUS Medical School, Singapore, Singapore
| | - B Arun
- The University of Texas MD Anderson Cancer Center, Houston, TX; Duke-NUS Medical School, Singapore, Singapore
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Mallick I, Arunsingh M, Prasath S, Arun B, Nallathambi C, Gupta S. Phase 1/2 Study on Stereotactic Hypofractionated Once-Weekly Radiation Therapy for Nonmetastatic Prostate Cancer. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.360] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Mallick I, Arunsingh M, Prasath S, Arun B, Roy P, Dabkara D, Gupta S. Phase I/II study on stereotactic hypofractionated once-weekly radiation therapy (SHORT) for localized prostate cancer. J Clin Oncol 2017. [DOI: 10.1200/jco.2017.35.6_suppl.130] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
130 Background: The low α/β ratio of prostate cancer (PrCa) is well established. However, stereotactic hypofractionated radiotherapy (SRT) has been investigated primarily in highly selected patient populations with low-intermediate risk disease. We performed a clinical trial of SRT delivered in once-weekly fractions on an unselected cohort of patients with non-metastatic PrCa. Methods: In this Phase I/II study 30 patients with non-metastatic PrCa (multiparametric MRI cT1-4N0, M0, Gleason 6-10, PSA < = 60 ng/ml) were treated with SRT to a prescription dose of 35Gy in 5 fractions delivered once a week (overall treatment time 29 days). Elective nodal RT at 25Gy/5Fr was delivered in patients high-risk by NCCN criteria, and androgen deprivation therapy given to intermediate and high-risk patients. SRT was planned using volumetric intensity modulated arc therapy (VMAT) or Helical Tomotherapy (HT) with pre-defined dose-criteria. The primary endpoint was acute toxicity NCI CTC v4, and secondary endpoints were biochemical control and late toxicity. Results: Thirty patients completed treatment per-protocol. Stage T3, Gleason 8-10, and PSA > 10 was seen in 18 (60%), 7 (23%) and 24 (80%) respectively. Overall 20 (66.7%) were high-risk. Median of Mean PTV dose was 36Gy, and normal tissue constraints could be met in all patients (Table). Acute urinary toxicities (Gr 0: 1; Gr 1: 27; Gr 2: 1; Gr 3-4: 0) and acute rectal toxicities (Gr 0: 20; Gr 1: 10; Gr 2: 0; Gr 3-4: 0) were very modest. The mean IPSS scores at baseline, end of treatment and 3 months after treatment were 8.8, 14.7, and 9.9. With a median follow up of 23.7 months, the 2 year biochemical control was 96%. Late grade 2 rectal bleeding developed in 1 patient. Conclusions: Carefully planned stereotactic VMAT/HT based once-weekly SRT to a predominantly high-risk non-metastatic PrCa cohort was very well tolerated and found to be safe for clinical use. Preliminary biochemical control and late toxicity profiles are encouraging. Clinical trial information: CTRI/2016/02/006671. [Table: see text]
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Affiliation(s)
| | | | | | - B Arun
- Tata Medical Center, Kolkata, India
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Achari R, Arunsingh M, Badgami RK, Saha A, Chatterjee S, Shrimali RK, Mallick I, Arun B. High-dose Neural Stem Cell Radiation May Not Improve Survival in Glioblastoma. Clin Oncol (R Coll Radiol) 2017; 29:335-343. [PMID: 28188088 DOI: 10.1016/j.clon.2017.01.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Revised: 12/01/2016] [Accepted: 12/06/2016] [Indexed: 01/07/2023]
Abstract
AIMS To evaluate the effect of radiotherapy dose-volume parameters of neural stem cell (NSC) compartment on progression-free survival (PFS) and overall survival after post-resection chemoradiation in newly diagnosed glioblastoma. MATERIALS AND METHODS Sixty-one patients with unifocal glioblastoma were included. Ipsilateral (NSC_Ipsi), contralateral (NSC_Contra) and combined NSC (NSC_Combined) were contoured on radiotherapy planning computerised tomography datasets. NSC dose-volume parameters were correlated with PFS and overall survival. Serial magnetic resonance imaging scans were assessed to understand the frequency of pre- and post-treatment involvement of the NSC by contrast enhancing lesions (CELs). RESULTS Baseline involvement of NSC with CELs was seen in 67.2% and 95.9% had CELs and FLAIR abnormalities at progression. With a median follow-up of 14.1 months (interquartile range 9.4-20.6 months), median PFS and overall survival were 14.5 (95% confidence interval 11.6-17.5) and 16.2 (95% confidence interval 13.3-19.2) months, respectively. Poor Eastern Cooperative Oncology Group performance score, advanced recursive partitioning analysis class, unmethylated O6-methylguanine methyltransferase (MGMT) status, higher than median of mean NSC_Ipsi dose were associated with significantly inferior PFS and overall survival on univariate analysis. On multivariate analysis, unmethylated MGMT status, higher than median of mean doses to NSC_Ipsi and poor compliance to adjuvant temozolomide were independent predictors of inferior survival. CONCLUSIONS In this cohort, 67.2% of newly diagnosed glioblastoma patients had NSC involved with CELs at presentation and 95.9% at progression. This might be an imaging surrogate of the current notion of gliomagenesis and progression from NSC rests. A high radiation dose to NSC_Ipsi was significantly associated with inferior survival. This could be a function of larger tumours and planning target volumes in those with pre-treatment NSC involvement. Methylated MGMT and good compliance to adjuvant temozolomide were independent predictors of better survival. Until further evidence brings hope for glioblastoma, elective, partial NSC irradiation remains experimental.
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Affiliation(s)
- R Achari
- Department of Radiation Oncology, Tata Medical Center, Kolkata, India.
| | - M Arunsingh
- Department of Radiation Oncology, Tata Medical Center, Kolkata, India
| | - R K Badgami
- Department of Radiation Oncology, Tata Medical Center, Kolkata, India
| | - A Saha
- Department of Radiation Oncology, Tata Medical Center, Kolkata, India
| | - S Chatterjee
- Department of Radiation Oncology, Tata Medical Center, Kolkata, India
| | - R K Shrimali
- Department of Radiation Oncology, Tata Medical Center, Kolkata, India
| | - I Mallick
- Department of Radiation Oncology, Tata Medical Center, Kolkata, India
| | - B Arun
- Department of Medical Physics, Tata Medical Center, Kolkata, India
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Gandhi VM, Arun B, Kumar RKP. Effectiveness of Myofascial Release Therapy with Shoulder Taping on Subacromial Impingement Syndrome in Collegiate Basket Ball Players -A Quasi experimental Pilot study. Bangladesh J Med Sci 2016. [DOI: 10.3329/bjms.v15i3.21292] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Background: Shoulder complex dysfunction can arise when any of its components goes for malfunction. Overhead athletes cause impingement in the shoulder due to subacromial impingement or anterior instability. Myofascial tightness is found to be the common causative mechanism for the shoulder pain, though the literatures were not detailed in considering the myofascial tightness and the management.Aims & Objective: The aim of the study was to find out the effect of myofascial release therapy with shoulder taping on subacromial impingement syndrome in collegiate basketball players. Quasi experimental pilot study with 38 collegiate basketball players who participated in the university tournaments were selected for the study. 19 players in control group were under myofascial therapy whereas 19 players in experimental group underwent shoulder taping and myofascial release therapy.Result: The outcome measures were pain and functional ability. Pain was assessed using numerical pain rating scale, and functional ability was assessed using SPADI. Unrelated t test was done to evaluate the effect of the treatment for pain value between groups is 13.9 with the p value <0.05% and SPADI scale was 13.8 with the p value <0.05%. The result shows that the myofascial release therapy with shoulder taping had more significant improvement than myofascial release therapy only.Conclusion: Study concludes that shoulder taping and myofascial release therapy helps in reducing pain and improvement of functional disability.Bangladesh Journal of Medical Science Vol.15(3) 2016 p.347-351
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Ma J, Son J, Arun B, Hazle J, Hwang K, Wang K, Bayram E, Madewell J, Yang W, Dogan B. SU-F-I-16: Short Breast MRI with High-Resolution T2-Weighted and Dynamic Contrast Enhanced T1-Weighted Images. Med Phys 2016. [DOI: 10.1118/1.4955844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Meric-Bernstam F, Brusco L, Daniels M, Wathoo C, Bailey AM, Strong L, Shaw K, Lu K, Qi Y, Zhao H, Lara-Guerra H, Litton J, Arun B, Eterovic AK, Aytac U, Routbort M, Subbiah V, Janku F, Davies MA, Kopetz S, Mendelsohn J, Mills GB, Chen K. Incidental germline variants in 1000 advanced cancers on a prospective somatic genomic profiling protocol. Ann Oncol 2016; 27:795-800. [PMID: 26787237 DOI: 10.1093/annonc/mdw018] [Citation(s) in RCA: 136] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Accepted: 01/08/2016] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND Next-generation sequencing in cancer research may reveal germline variants of clinical significance. We report patient preferences for return of results and the prevalence of incidental pathogenic germline variants (PGVs). PATIENTS AND METHODS Targeted exome sequencing of 202 genes was carried out in 1000 advanced cancers using tumor and normal DNA in a research laboratory. Pathogenic variants in 18 genes, recommended for return by The American College of Medical Genetics and Genomics, as well as PALB2, were considered actionable. Patient preferences of return of incidental germline results were collected. Return of results was initiated with genetic counseling and repeat CLIA testing. RESULTS Of the 1000 patients who underwent sequencing, 43 had likely PGVs: APC (1), BRCA1 (11), BRCA2 (10), TP53 (10), MSH2 (1), MSH6 (4), PALB2 (2), PTEN (2), TSC2 (1), and RB1 (1). Twenty (47%) of 43 variants were previously known based on clinical genetic testing. Of the 1167 patients who consented for a germline testing protocol, 1157 (99%) desired to be informed of incidental results. Twenty-three previously unrecognized mutations identified in the research environment were confirmed with an orthogonal CLIA platform. All patients approached decided to proceed with formal genetic counseling; in all cases where formal genetic testing was carried out, the germline variant of concern validated with clinical genetic testing. CONCLUSIONS In this series, 2.3% patients had previously unrecognized pathogenic germline mutations in 19 cancer-related genes. Thus, genomic sequencing must be accompanied by a plan for return of germline results, in partnership with genetic counseling.
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Affiliation(s)
- F Meric-Bernstam
- Department of Investigational Cancer Therapeutics Department of Sheikh Khalifa Bin Zayed Al Nahyan Institute for Personalized Cancer Therapy Department of Surgical Oncology
| | - L Brusco
- Department of Sheikh Khalifa Bin Zayed Al Nahyan Institute for Personalized Cancer Therapy
| | - M Daniels
- Department of Gynecologic Oncology and Reproductive Medicine Program of Clinical Cancer Genetics
| | - C Wathoo
- Department of Sheikh Khalifa Bin Zayed Al Nahyan Institute for Personalized Cancer Therapy
| | - A M Bailey
- Department of Sheikh Khalifa Bin Zayed Al Nahyan Institute for Personalized Cancer Therapy
| | - L Strong
- Program of Clinical Cancer Genetics
| | - K Shaw
- Department of Sheikh Khalifa Bin Zayed Al Nahyan Institute for Personalized Cancer Therapy
| | - K Lu
- Department of Gynecologic Oncology and Reproductive Medicine Program of Clinical Cancer Genetics
| | - Y Qi
- Department of Bioinformatics and Computational Biology
| | - H Zhao
- Department of Bioinformatics and Computational Biology
| | - H Lara-Guerra
- Department of Sheikh Khalifa Bin Zayed Al Nahyan Institute for Personalized Cancer Therapy Department of RedSky/Biomedical Institute of the Americas, El Paso, USA
| | - J Litton
- Department of Breast Medical Oncology
| | - B Arun
- Department of Breast Medical Oncology Program of Clinical Cancer Genetics
| | | | - U Aytac
- Department of Sheikh Khalifa Bin Zayed Al Nahyan Institute for Personalized Cancer Therapy
| | | | - V Subbiah
- Department of Investigational Cancer Therapeutics
| | - F Janku
- Department of Investigational Cancer Therapeutics
| | - M A Davies
- Department of Systems Biology Department of Melanoma Medical Oncology
| | - S Kopetz
- Department of Gastrointestinal (GI) Medical Oncology, MD Anderson Cancer Center, Houston
| | - J Mendelsohn
- Department of Sheikh Khalifa Bin Zayed Al Nahyan Institute for Personalized Cancer Therapy Department of Genomic Medicine
| | - G B Mills
- Department of Sheikh Khalifa Bin Zayed Al Nahyan Institute for Personalized Cancer Therapy Department of Systems Biology
| | - K Chen
- Department of Sheikh Khalifa Bin Zayed Al Nahyan Institute for Personalized Cancer Therapy Department of Bioinformatics and Computational Biology
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Arun B, Manohari M, Mathiyarasu R, Rajagopal V, Jose MT. Prediction of background in low-energy spectrum of Phoswich detector. Radiat Prot Dosimetry 2014; 162:260-267. [PMID: 24300341 DOI: 10.1093/rpd/nct307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
In vivo monitoring of actinides in occupational workers is done using Phoswich detector by measuring the low-energy X ray and gamma rays. Quantification of actinides like plutonium and americium in the lungs is extremely difficult due to higher background in the low-energy regions, which is from ambient background as well as from the subject. In the latter case, it is mainly due to the Compton scattering of body potassium, which varies person-to-person. Hence, an accurate prediction of subject-specific background counts in the lower-energy regions is an essential element in the in vivo measurement of plutonium and americium. Empirical equations are established for the prediction of background count rate in (239)Pu and (241)Am lower-energy regions, called 'target regions', as a function of count rate in the monitoring region (97-130 keV)/(40)K region in the high-energy spectrum, weight-to-height ratio of the subject (scattering parameter) and the gender.
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Affiliation(s)
- B Arun
- Department of Atomic Energy, Indira Gandhi Centre for Atomic Research, Kalpakkam, Tamil Nadu, India
| | - M Manohari
- Department of Atomic Energy, Indira Gandhi Centre for Atomic Research, Kalpakkam, Tamil Nadu, India
| | - R Mathiyarasu
- Department of Atomic Energy, Indira Gandhi Centre for Atomic Research, Kalpakkam, Tamil Nadu, India
| | - V Rajagopal
- Department of Atomic Energy, Indira Gandhi Centre for Atomic Research, Kalpakkam, Tamil Nadu, India
| | - M T Jose
- Department of Atomic Energy, Indira Gandhi Centre for Atomic Research, Kalpakkam, Tamil Nadu, India
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Crew KD, Ho KA, Brown P, Greenlee H, Bevers TB, Arun B, Sneige N, Hudis C, McArthur HL, Chang J, Rimawi M, Cornelison TL, Cardelli J, Santella RM, Wang A, Lippman SM, Hershman DL. Effects of a green tea extract, Polyphenon E, on systemic biomarkers of growth factor signalling in women with hormone receptor-negative breast cancer. J Hum Nutr Diet 2014; 28:272-82. [PMID: 24646362 DOI: 10.1111/jhn.12229] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND Observational and experimental data support a potential breast cancer chemopreventive effect of green tea. METHODS We conducted an ancillary study using archived blood/urine from a phase IB randomised, placebo-controlled dose escalation trial of an oral green tea extract, Polyphenon E (Poly E), in breast cancer patients. Using an adaptive trial design, women with stage I-III breast cancer who completed adjuvant treatment were randomised to Poly E 400 mg (n = 16), 600 mg (n = 11) and 800 mg (n = 3) twice daily or matching placebo (n = 10) for 6 months. Blood and urine collection occurred at baseline, and at 2, 4 and 6 months. Biological endpoints included growth factor [serum hepatocyte growth factor (HGF), vascular endothelial growth factor (VEGF)], lipid (serum cholesterol, triglycerides), oxidative damage and inflammatory biomarkers. RESULTS From July 2007-August 2009, 40 women were enrolled and 34 (26 Poly E, eight placebo) were evaluable for biomarker endpoints. At 2 months, the Poly E group (all dose levels combined) compared to placebo had a significant decrease in mean serum HGF levels (-12.7% versus +6.3%, P = 0.04). This trend persisted at 4 and 6 months but was no longer statistically significant. For the Poly E group, serum VEGF decreased by 11.5% at 2 months (P = 0.02) and 13.9% at 4 months (P = 0.05) but did not differ compared to placebo. At 2 months, there was a trend toward a decrease in serum cholesterol with Poly E (P = 0.08). No significant differences were observed for other biomarkers. CONCLUSIONS Our findings suggest potential mechanistic actions of tea polyphenols in growth factor signalling, angiogenesis and lipid metabolism.
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Affiliation(s)
- K D Crew
- Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY, USA
| | - K A Ho
- Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY, USA
| | - P Brown
- University of Texas, MD Anderson Cancer Center, Houston, TX, USA
| | - H Greenlee
- Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY, USA
| | - T B Bevers
- University of Texas, MD Anderson Cancer Center, Houston, TX, USA
| | - B Arun
- University of Texas, MD Anderson Cancer Center, Houston, TX, USA
| | - N Sneige
- University of Texas, MD Anderson Cancer Center, Houston, TX, USA
| | - C Hudis
- Memorial Sloan-Kettering Cancer Center, New York, NY, USA
| | - H L McArthur
- Memorial Sloan-Kettering Cancer Center, New York, NY, USA
| | - J Chang
- The Methodist Hospital Cancer Center, Houston, TX, USA
| | - M Rimawi
- Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, TX, USA
| | - T L Cornelison
- Divison of Cancer Prevention, National Cancer Institute, Bethesda, MD, USA
| | - J Cardelli
- Louisiana State University Health Sciences Center, Shreveport, LA, USA
| | - R M Santella
- Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY, USA
| | - A Wang
- Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY, USA
| | - S M Lippman
- University of California San Diego Moores Cancer Center, San Diego, CA, USA
| | - D L Hershman
- Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY, USA
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Somlo G, Frankel P, Luu T, Ma C, Arun B, Garcia A, Cigler T, Fleming G, Harvey H, Sparano J, Nanda R, Chew H, Moynihan T, Vahdat L, Goetz M, Hurria A, Mortimer J, Gandara D, Chen A, Weitzel J. Abstract P2-16-05: Efficacy of ABT-888 (veliparib) in patients with BRCA-associated breast cancer. Cancer Res 2013. [DOI: 10.1158/0008-5472.sabcs13-p2-16-05] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: The potential for exploiting BRCA deficiencies with DNA repair inhibitors has both pre-clinical and clinical support. ABT-888 (veliparib), a DNA repair inhibitor initially thought to target Poly(ADP-Ribose) Polymerases (PARP), has demonstrated in vitro inhibition of BRCA1 and BRCA2 deficient mouse embryonic stell cells, with a larger effect on BRCA1 cells. We report on the pre-planned interim analysis of the efficacy of single agent veliparib in patients with either BRCA1 or BRCA2-associated stage IV breast cancer. Methods: BRCA 1 or 2 carrier patients with stage IV breast cancer, with measurable disease, without prior exposure to a PARP inhibitor or a platinum compound in the metastatic setting, were eligible. Velapirib was administered orally, at doses of 400 mg twice daily. Dose adjustments based on toxicity were permitted. Patients progressing on velapirib alone received carboplatin at an AUC of 5, IV, given Q 21 days, and velapirib 150 mg twice daily (the maximum tolerated dose [MTD] of the combination from our completed Phase I study: J Clin Oncol 30, 2012 [suppl; abstr 1024]). Patients were to be accrued from 7 NCI NO1- supported consortia. Initially 10 patients were to be accrued to each stratum (BRCA1 and BRCA2) to provide evidence of single agent activity. If there was sufficient activity to warrant consideration of velapirib as single agent therapy (defined as 2 or more confirmed partial [PR] or better responses out of 10 per stratum), an additional 12 patients would be accrued per stratum. Results: 20 evaluable patients (11 BRCA1 and 9 BRCA2 [1 in screening]) have been accrued, the majority with lung or liver as visceral metastatic sites of disease. Median age (range) is 46 (29-68) years. Tumors from 9 patients were hormone receptor positive. BRCA1 cohort: 4 of 11 patients are off treatment at a median of 2 months (1-4); 1 patient stopped velapirib due to toxicity (grade 2 rash/pruritus, grade 2 vomiting), 3 stopped for progressive disease (one with an unconfirmed PR). Seven patients are still on single agent veliparib with 1 unconfirmed PR, and 1 patient with two evaluations showing stable disease. BRCA2 cohort: 2 patients are off treatment at 2 months for progressive disease, 7 are still on treatment with 1 confirmed PR, and 3 unconfirmed PRs. Data on patients receiving combination of velapirib and carboplatin after progression is too early. Treatment-related toxicity is being updated and has so far been reported from 14 patients: 1 patient had grade 3 fatigue, 1 patient with liver metastasis had both grade 3 alanine aminotransferase elevation and grade 3 abdominal pain. Grade 2 toxicities occurring in more than 1 patient included nausea/vomiting (6 patients), chills (2 patients), and fatigue (2 patients). Conclusion: Velapirib has single agent activity in both BRCA1 and BRCA2-associated stage IV breast cancer patients, and is well-tolerated. Mature response, treatment, and toxicity data will be presented.
Citation Information: Cancer Res 2013;73(24 Suppl): Abstract nr P2-16-05.
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Affiliation(s)
- G Somlo
- City of Hope Cancer Center, Duarte, CA; Washington University School of Medicine, St. Louis, MO; The University of Texas MD Anderson Cancer Center, Houston, TX; USC Norris Comprehensive Cancer Center, Los Angeles, CA; Weill Cornell Medical College, New York, NY; Alliance for Clinical Trials in Oncology, Chicago, IL; Milton S. Hershey Medical Center, Hershey, PA; Montefiore Medical Center, Bronx, NY; University of Chicago, Chicago, IL; University of California, Davis Cancer Center, Sacramento, CA; Mayo Clinic, Rochester, MN; National Cancer Institute, Bethesda, MD
| | - P Frankel
- City of Hope Cancer Center, Duarte, CA; Washington University School of Medicine, St. Louis, MO; The University of Texas MD Anderson Cancer Center, Houston, TX; USC Norris Comprehensive Cancer Center, Los Angeles, CA; Weill Cornell Medical College, New York, NY; Alliance for Clinical Trials in Oncology, Chicago, IL; Milton S. Hershey Medical Center, Hershey, PA; Montefiore Medical Center, Bronx, NY; University of Chicago, Chicago, IL; University of California, Davis Cancer Center, Sacramento, CA; Mayo Clinic, Rochester, MN; National Cancer Institute, Bethesda, MD
| | - T Luu
- City of Hope Cancer Center, Duarte, CA; Washington University School of Medicine, St. Louis, MO; The University of Texas MD Anderson Cancer Center, Houston, TX; USC Norris Comprehensive Cancer Center, Los Angeles, CA; Weill Cornell Medical College, New York, NY; Alliance for Clinical Trials in Oncology, Chicago, IL; Milton S. Hershey Medical Center, Hershey, PA; Montefiore Medical Center, Bronx, NY; University of Chicago, Chicago, IL; University of California, Davis Cancer Center, Sacramento, CA; Mayo Clinic, Rochester, MN; National Cancer Institute, Bethesda, MD
| | - C Ma
- City of Hope Cancer Center, Duarte, CA; Washington University School of Medicine, St. Louis, MO; The University of Texas MD Anderson Cancer Center, Houston, TX; USC Norris Comprehensive Cancer Center, Los Angeles, CA; Weill Cornell Medical College, New York, NY; Alliance for Clinical Trials in Oncology, Chicago, IL; Milton S. Hershey Medical Center, Hershey, PA; Montefiore Medical Center, Bronx, NY; University of Chicago, Chicago, IL; University of California, Davis Cancer Center, Sacramento, CA; Mayo Clinic, Rochester, MN; National Cancer Institute, Bethesda, MD
| | - B Arun
- City of Hope Cancer Center, Duarte, CA; Washington University School of Medicine, St. Louis, MO; The University of Texas MD Anderson Cancer Center, Houston, TX; USC Norris Comprehensive Cancer Center, Los Angeles, CA; Weill Cornell Medical College, New York, NY; Alliance for Clinical Trials in Oncology, Chicago, IL; Milton S. Hershey Medical Center, Hershey, PA; Montefiore Medical Center, Bronx, NY; University of Chicago, Chicago, IL; University of California, Davis Cancer Center, Sacramento, CA; Mayo Clinic, Rochester, MN; National Cancer Institute, Bethesda, MD
| | - A Garcia
- City of Hope Cancer Center, Duarte, CA; Washington University School of Medicine, St. Louis, MO; The University of Texas MD Anderson Cancer Center, Houston, TX; USC Norris Comprehensive Cancer Center, Los Angeles, CA; Weill Cornell Medical College, New York, NY; Alliance for Clinical Trials in Oncology, Chicago, IL; Milton S. Hershey Medical Center, Hershey, PA; Montefiore Medical Center, Bronx, NY; University of Chicago, Chicago, IL; University of California, Davis Cancer Center, Sacramento, CA; Mayo Clinic, Rochester, MN; National Cancer Institute, Bethesda, MD
| | - T Cigler
- City of Hope Cancer Center, Duarte, CA; Washington University School of Medicine, St. Louis, MO; The University of Texas MD Anderson Cancer Center, Houston, TX; USC Norris Comprehensive Cancer Center, Los Angeles, CA; Weill Cornell Medical College, New York, NY; Alliance for Clinical Trials in Oncology, Chicago, IL; Milton S. Hershey Medical Center, Hershey, PA; Montefiore Medical Center, Bronx, NY; University of Chicago, Chicago, IL; University of California, Davis Cancer Center, Sacramento, CA; Mayo Clinic, Rochester, MN; National Cancer Institute, Bethesda, MD
| | - G Fleming
- City of Hope Cancer Center, Duarte, CA; Washington University School of Medicine, St. Louis, MO; The University of Texas MD Anderson Cancer Center, Houston, TX; USC Norris Comprehensive Cancer Center, Los Angeles, CA; Weill Cornell Medical College, New York, NY; Alliance for Clinical Trials in Oncology, Chicago, IL; Milton S. Hershey Medical Center, Hershey, PA; Montefiore Medical Center, Bronx, NY; University of Chicago, Chicago, IL; University of California, Davis Cancer Center, Sacramento, CA; Mayo Clinic, Rochester, MN; National Cancer Institute, Bethesda, MD
| | - H Harvey
- City of Hope Cancer Center, Duarte, CA; Washington University School of Medicine, St. Louis, MO; The University of Texas MD Anderson Cancer Center, Houston, TX; USC Norris Comprehensive Cancer Center, Los Angeles, CA; Weill Cornell Medical College, New York, NY; Alliance for Clinical Trials in Oncology, Chicago, IL; Milton S. Hershey Medical Center, Hershey, PA; Montefiore Medical Center, Bronx, NY; University of Chicago, Chicago, IL; University of California, Davis Cancer Center, Sacramento, CA; Mayo Clinic, Rochester, MN; National Cancer Institute, Bethesda, MD
| | - J Sparano
- City of Hope Cancer Center, Duarte, CA; Washington University School of Medicine, St. Louis, MO; The University of Texas MD Anderson Cancer Center, Houston, TX; USC Norris Comprehensive Cancer Center, Los Angeles, CA; Weill Cornell Medical College, New York, NY; Alliance for Clinical Trials in Oncology, Chicago, IL; Milton S. Hershey Medical Center, Hershey, PA; Montefiore Medical Center, Bronx, NY; University of Chicago, Chicago, IL; University of California, Davis Cancer Center, Sacramento, CA; Mayo Clinic, Rochester, MN; National Cancer Institute, Bethesda, MD
| | - R Nanda
- City of Hope Cancer Center, Duarte, CA; Washington University School of Medicine, St. Louis, MO; The University of Texas MD Anderson Cancer Center, Houston, TX; USC Norris Comprehensive Cancer Center, Los Angeles, CA; Weill Cornell Medical College, New York, NY; Alliance for Clinical Trials in Oncology, Chicago, IL; Milton S. Hershey Medical Center, Hershey, PA; Montefiore Medical Center, Bronx, NY; University of Chicago, Chicago, IL; University of California, Davis Cancer Center, Sacramento, CA; Mayo Clinic, Rochester, MN; National Cancer Institute, Bethesda, MD
| | - H Chew
- City of Hope Cancer Center, Duarte, CA; Washington University School of Medicine, St. Louis, MO; The University of Texas MD Anderson Cancer Center, Houston, TX; USC Norris Comprehensive Cancer Center, Los Angeles, CA; Weill Cornell Medical College, New York, NY; Alliance for Clinical Trials in Oncology, Chicago, IL; Milton S. Hershey Medical Center, Hershey, PA; Montefiore Medical Center, Bronx, NY; University of Chicago, Chicago, IL; University of California, Davis Cancer Center, Sacramento, CA; Mayo Clinic, Rochester, MN; National Cancer Institute, Bethesda, MD
| | - T Moynihan
- City of Hope Cancer Center, Duarte, CA; Washington University School of Medicine, St. Louis, MO; The University of Texas MD Anderson Cancer Center, Houston, TX; USC Norris Comprehensive Cancer Center, Los Angeles, CA; Weill Cornell Medical College, New York, NY; Alliance for Clinical Trials in Oncology, Chicago, IL; Milton S. Hershey Medical Center, Hershey, PA; Montefiore Medical Center, Bronx, NY; University of Chicago, Chicago, IL; University of California, Davis Cancer Center, Sacramento, CA; Mayo Clinic, Rochester, MN; National Cancer Institute, Bethesda, MD
| | - L Vahdat
- City of Hope Cancer Center, Duarte, CA; Washington University School of Medicine, St. Louis, MO; The University of Texas MD Anderson Cancer Center, Houston, TX; USC Norris Comprehensive Cancer Center, Los Angeles, CA; Weill Cornell Medical College, New York, NY; Alliance for Clinical Trials in Oncology, Chicago, IL; Milton S. Hershey Medical Center, Hershey, PA; Montefiore Medical Center, Bronx, NY; University of Chicago, Chicago, IL; University of California, Davis Cancer Center, Sacramento, CA; Mayo Clinic, Rochester, MN; National Cancer Institute, Bethesda, MD
| | - M Goetz
- City of Hope Cancer Center, Duarte, CA; Washington University School of Medicine, St. Louis, MO; The University of Texas MD Anderson Cancer Center, Houston, TX; USC Norris Comprehensive Cancer Center, Los Angeles, CA; Weill Cornell Medical College, New York, NY; Alliance for Clinical Trials in Oncology, Chicago, IL; Milton S. Hershey Medical Center, Hershey, PA; Montefiore Medical Center, Bronx, NY; University of Chicago, Chicago, IL; University of California, Davis Cancer Center, Sacramento, CA; Mayo Clinic, Rochester, MN; National Cancer Institute, Bethesda, MD
| | - A Hurria
- City of Hope Cancer Center, Duarte, CA; Washington University School of Medicine, St. Louis, MO; The University of Texas MD Anderson Cancer Center, Houston, TX; USC Norris Comprehensive Cancer Center, Los Angeles, CA; Weill Cornell Medical College, New York, NY; Alliance for Clinical Trials in Oncology, Chicago, IL; Milton S. Hershey Medical Center, Hershey, PA; Montefiore Medical Center, Bronx, NY; University of Chicago, Chicago, IL; University of California, Davis Cancer Center, Sacramento, CA; Mayo Clinic, Rochester, MN; National Cancer Institute, Bethesda, MD
| | - J Mortimer
- City of Hope Cancer Center, Duarte, CA; Washington University School of Medicine, St. Louis, MO; The University of Texas MD Anderson Cancer Center, Houston, TX; USC Norris Comprehensive Cancer Center, Los Angeles, CA; Weill Cornell Medical College, New York, NY; Alliance for Clinical Trials in Oncology, Chicago, IL; Milton S. Hershey Medical Center, Hershey, PA; Montefiore Medical Center, Bronx, NY; University of Chicago, Chicago, IL; University of California, Davis Cancer Center, Sacramento, CA; Mayo Clinic, Rochester, MN; National Cancer Institute, Bethesda, MD
| | - D Gandara
- City of Hope Cancer Center, Duarte, CA; Washington University School of Medicine, St. Louis, MO; The University of Texas MD Anderson Cancer Center, Houston, TX; USC Norris Comprehensive Cancer Center, Los Angeles, CA; Weill Cornell Medical College, New York, NY; Alliance for Clinical Trials in Oncology, Chicago, IL; Milton S. Hershey Medical Center, Hershey, PA; Montefiore Medical Center, Bronx, NY; University of Chicago, Chicago, IL; University of California, Davis Cancer Center, Sacramento, CA; Mayo Clinic, Rochester, MN; National Cancer Institute, Bethesda, MD
| | - A Chen
- City of Hope Cancer Center, Duarte, CA; Washington University School of Medicine, St. Louis, MO; The University of Texas MD Anderson Cancer Center, Houston, TX; USC Norris Comprehensive Cancer Center, Los Angeles, CA; Weill Cornell Medical College, New York, NY; Alliance for Clinical Trials in Oncology, Chicago, IL; Milton S. Hershey Medical Center, Hershey, PA; Montefiore Medical Center, Bronx, NY; University of Chicago, Chicago, IL; University of California, Davis Cancer Center, Sacramento, CA; Mayo Clinic, Rochester, MN; National Cancer Institute, Bethesda, MD
| | - J Weitzel
- City of Hope Cancer Center, Duarte, CA; Washington University School of Medicine, St. Louis, MO; The University of Texas MD Anderson Cancer Center, Houston, TX; USC Norris Comprehensive Cancer Center, Los Angeles, CA; Weill Cornell Medical College, New York, NY; Alliance for Clinical Trials in Oncology, Chicago, IL; Milton S. Hershey Medical Center, Hershey, PA; Montefiore Medical Center, Bronx, NY; University of Chicago, Chicago, IL; University of California, Davis Cancer Center, Sacramento, CA; Mayo Clinic, Rochester, MN; National Cancer Institute, Bethesda, MD
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Fouad TM, Kogawa T, Liu DD, Shen Y, Masuda H, El-Zein R, Woodward WA, Arun B, Chavez-Macgregor M, Alvarez RH, Lucci A, Krishnamurthy S, Hortobagyi GN, Valero V, Ueno NT. Abstract P6-12-02: Survival differences between patients with metastatic inflammatory and non-inflammatory breast cancer. Cancer Res 2013. [DOI: 10.1158/0008-5472.sabcs13-p6-12-02] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Very little is known about the survival of patients with inflammatory breast cancer (IBC) and distant metastasis. Furthermore, the American Joint Committee on Cancer classification of breast cancer does not recognize metastatic IBC as a distinct entity within stage IV. We hypothesized that the survival of patients with IBC and distant metastasis is worse than the survival of patients with stage-matched non-IBC.
Patients and Methods: We retrospectively reviewed 5314 consecutive patients with stage III or IV breast cancer (IBC or non-IBC) who were treated at our institution between 1986 and 2012. A total of 1079 patients presented with IBC (stage III: 861; stage IV: 218) and 4235 non-IBC (stage III: 2781; stage IV: 1454). We compared the time to distant metastasis from initial diagnosis, distant metastasis–free survival (DMFS), and overall survival (OS) in stage-matched patients with IBC or non-IBC.
Results: The median follow-up periods were 3.3 years for patients with stage III disease (range, 0-32.2 years) and 1.8 years for patients with stage IV disease (range, 0-19.9 years). The total number of recorded events (metastasis/death) was 1657 for stage III, while the numbers of deaths for stage III and IV were 1337 and 973, respectively. In patients with stage III, the time to distant metastasis was shorter in IBC than in non-IBC (median 1.3 vs. 1.7 years, P < .001). DMFS and OS were shorter in patients with stage III IBC than in those with stage III non-IBC (2.5 vs. 6.9 years, P < .001; and 4.7 vs. 8.9 years, P < .001; respectively). However, there was no significant difference in OS after development of distant metastasis between stage III IBC and non-IBC (median for both 1.3 years, P = .83). In multivariate analysis, the diagnosis of IBC remained significantly associated with mortality after adjusting for potential confounders. De novo stage IV IBC presented more frequently with multiple sites of metastasis than de novo stage IV non-IBC (P = .02). In patients with de novo stage IV disease, OS was shorter in IBC than in non-IBC (2.3 vs. 3.4 years, P = .004). In the multicovariate Cox model, while ethnicity, tumor grade, hormone receptor status and HER2 status, site of metastasis, number of sites of metastasis, and definitive breast surgery by 1 year were all significant factors in OS for stage IV breast cancer, the diagnosis of IBC conferred a hazard ratio of 1.33 (95% confidence interval: 1.05 - 1.69) in multivariate analysis.
Conclusion: Our findings suggest that IBC patients with metastasis at diagnosis have worse outcomes than stage-matched non-IBC patients. IBC patients presenting with de novo stage IV disease should be considered as a separate subcategory of stage IV in the tumor-node-metastasis classification because their clinical course and prognosis are different from those of patients with stage IV non-IBC.
Citation Information: Cancer Res 2013;73(24 Suppl): Abstract nr P6-12-02.
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Affiliation(s)
- TM Fouad
- The University of Texas MD Anderson Cancer Center, Houston, TX; The National Cancer Institute, Cairo University, Cairo, Egypt
| | - T Kogawa
- The University of Texas MD Anderson Cancer Center, Houston, TX; The National Cancer Institute, Cairo University, Cairo, Egypt
| | - DD Liu
- The University of Texas MD Anderson Cancer Center, Houston, TX; The National Cancer Institute, Cairo University, Cairo, Egypt
| | - Y Shen
- The University of Texas MD Anderson Cancer Center, Houston, TX; The National Cancer Institute, Cairo University, Cairo, Egypt
| | - H Masuda
- The University of Texas MD Anderson Cancer Center, Houston, TX; The National Cancer Institute, Cairo University, Cairo, Egypt
| | - R El-Zein
- The University of Texas MD Anderson Cancer Center, Houston, TX; The National Cancer Institute, Cairo University, Cairo, Egypt
| | - WA Woodward
- The University of Texas MD Anderson Cancer Center, Houston, TX; The National Cancer Institute, Cairo University, Cairo, Egypt
| | - B Arun
- The University of Texas MD Anderson Cancer Center, Houston, TX; The National Cancer Institute, Cairo University, Cairo, Egypt
| | - M Chavez-Macgregor
- The University of Texas MD Anderson Cancer Center, Houston, TX; The National Cancer Institute, Cairo University, Cairo, Egypt
| | - RH Alvarez
- The University of Texas MD Anderson Cancer Center, Houston, TX; The National Cancer Institute, Cairo University, Cairo, Egypt
| | - A Lucci
- The University of Texas MD Anderson Cancer Center, Houston, TX; The National Cancer Institute, Cairo University, Cairo, Egypt
| | - S Krishnamurthy
- The University of Texas MD Anderson Cancer Center, Houston, TX; The National Cancer Institute, Cairo University, Cairo, Egypt
| | - GN Hortobagyi
- The University of Texas MD Anderson Cancer Center, Houston, TX; The National Cancer Institute, Cairo University, Cairo, Egypt
| | - V Valero
- The University of Texas MD Anderson Cancer Center, Houston, TX; The National Cancer Institute, Cairo University, Cairo, Egypt
| | - NT Ueno
- The University of Texas MD Anderson Cancer Center, Houston, TX; The National Cancer Institute, Cairo University, Cairo, Egypt
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Elsayegh N, Gutierrez-Barrera A, Baum G, Muse K, Jackson M, Woodson A, Jessica P, Kuerer H, Litton J, Arun B. Abstract P5-13-03: Factors associated with prophylactic mastectomy among BRCA-positive patients with no personal history of breast cancer. Cancer Res 2013. [DOI: 10.1158/0008-5472.sabcs13-p5-13-03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: The rate of prophylactic mastectomy (PM) has recently increased1. A deleterious mutation in the BRCA1 or BRCA 2 genes is among the major reasons why patients pursue PM 2, 3. Women with BRCA1 or BRCA2 gene mutations have up to an 87% risk to develop an invasive breast cancer (BC), and up to 45% risk for ovarian cancer (OC)2, 3. Most studies evaluating predictors of PM in BRCA mutation carriers are performed among women with breast cancer; however, accurate predictors for PM among unaffected BRCA mutation carriers are less defined. In a single institution study we aimed to evaluate predictors of PM among BRCA carriers with no personal history of breast cancer.
Method: One hundred seventy seven women with no personal history of BC, who tested positive for a BRCA1 or BRCA 2 germline mutation, were included in the study. Patients’ characteristics were obtained from a prospectively maintained research database under an IRB approved protocol at UT MD Anderson Cancer Center. Univariate analyses using chi-square and logistic regression analysis were used to determine predictive factors associated with PM. The patient characteristics examined included age, martial and educational status, bilateral salphingo-oophorectomy (BSO), family history of 1st and 2nd degree relatives with breast (BC) and ovarian cancer (OC), race, and BRCA genetic test result.
Results: Out of the 177 BRCA1 and BRCA 2 positive patients, 51 (29%) elected for PM. The average age for the cohort was 44 years (range 23-91). The majority were Caucasian (81%), and married (72%) with a college degree (64%). One hundred sixty-four (92%) patients had 1st and 2nd degree relatives with BC, 93 (53%) had 1st and 2nd degree relatives with OC, and 85 (48%) had undergone BSO. A logistic regression model was run to identify factors associated with undergoing PM, including family history of OC, family history of BC, BSO and age. Patients with a family history of OC were 2.5 times more likely than those without to have had a PM (p = 0.0125), and patients who had a BSO were 0.137 times less likely to have had a PM (p <.0001). Only 12 patients did not have a family history of BC and none of those patients had a PM, so an Odds Ratio could not be calculated. However, it was determined through the Fisher's exact test that patients with a family history of BC were more likely to undergo a PM (p = 0.0198).
Conclusion: The rate of PM in our cohort was slightly lower than expected. Factors associated with PM included a family history of BC and OC. Interestingly, having had a BSO was associated with lower likelihood of undergoing PM (menopausal status will be further evaluated); possibly due to the knowledge that BSO reduces breast cancer risk.
Citation Information: Cancer Res 2013;73(24 Suppl): Abstract nr P5-13-03.
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Affiliation(s)
- N Elsayegh
- University of Texas M.D.Anderson Cancer Center, Houston, TX
| | | | - G Baum
- University of Texas M.D.Anderson Cancer Center, Houston, TX
| | - K Muse
- University of Texas M.D.Anderson Cancer Center, Houston, TX
| | - M Jackson
- University of Texas M.D.Anderson Cancer Center, Houston, TX
| | - A Woodson
- University of Texas M.D.Anderson Cancer Center, Houston, TX
| | - P Jessica
- University of Texas M.D.Anderson Cancer Center, Houston, TX
| | - H Kuerer
- University of Texas M.D.Anderson Cancer Center, Houston, TX
| | - J Litton
- University of Texas M.D.Anderson Cancer Center, Houston, TX
| | - B Arun
- University of Texas M.D.Anderson Cancer Center, Houston, TX
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Basu Achari R, Gowardhanan D, Arun B, Dharmendran P, Prasath S, Chatterjee S, Mallick I. Three-Dimensional Conformal Radiation Therapy, Volumetric Intensity Modulated Arc Therapy, and Helical Tomotherapy for Pediatric Craniospinal Irradiation: Dosimetric Analysis of Integral Dose. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.1568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Palani D, Arun B, Prasath S, Selvan T, Gowardan D, Achari R. SU-E-T-587: Evaluation of Dosimetric Effect in Vaginal Cylindrical Application Using HDR Brachy Therapy. Med Phys 2013. [DOI: 10.1118/1.4815015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Milbury K, Chaoul A, Biegler K, Wangyal T, Spelman A, Meyers CA, Arun B, Palmer JL, Taylor J, Cohen L. Tibetan sound meditation for cognitive dysfunction: results of a randomized controlled pilot trial. Psychooncology 2013; 22:2354-63. [PMID: 23657969 DOI: 10.1002/pon.3296] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2012] [Revised: 03/15/2013] [Accepted: 03/27/2013] [Indexed: 11/09/2022]
Abstract
OBJECTIVE Although chemotherapy-induced cognitive impairment is common among breast cancer patients, evidence for effective interventions addressing cognitive deficits is limited. This randomized controlled trial examined the feasibility and preliminary efficacy of a Tibetan Sound Meditation (TSM) program to improve cognitive function and quality of life in breast cancer patients. METHODS Forty-seven breast cancer patients (mean age 56.3 years), who were staged I-III at diagnosis, 6-60 months post-chemotherapy, and reported cognitive impairment at study entry were recruited. Participants were randomized to either two weekly TSM sessions for 6 weeks or a wait list control group. Neuropsychological assessments were completed at baseline and 1 month post-treatment. Self-report measures of cognitive function (Functional Assessment of Cancer Therapy (FACT)-Cog), quality of life (SF-36), depressive symptoms (Center for Epidemiologic Studies Depression Scale), sleep disturbance (Pittsburgh Sleep Quality Index), fatigue (Brief Fatigue Inventory), and spirituality (FACT-Sp) were completed at baseline, the end of treatment, and 1 month later. RESULTS Relative to the control group, women in the TSM group performed better on the verbal memory test (Rey Auditory Verbal Learning Test trial 1) (p = 0.06) and the short-term memory and processing speed task (Digit Symbol) (p = 0.09) and reported improved cognitive function (p = 0.06), cognitive abilities (p = 0.08), mental health (p = 0.04), and spirituality (p = 0.05) at the end of treatment but not 1 month later. CONCLUSIONS This randomized controlled trial revealed that TSM program appears to be a feasible and acceptable intervention and may be associated with short-term improvements in objective and subjective cognitive function as well as mental health and spirituality in breast cancer patients.
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Affiliation(s)
- K Milbury
- Department of General Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - A Chaoul
- Department of General Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - K Biegler
- Health Policy Research Institute, University of California, Irvine, CA, USA
| | - T Wangyal
- Ligmincha Institute, Shipman, VA, USA
| | - A Spelman
- Department of General Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - C A Meyers
- Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - B Arun
- Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - J L Palmer
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - J Taylor
- Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - L Cohen
- Department of General Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
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