Journal of Global Oncology
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1773
(FIVE YEARS 292)

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16
(FIVE YEARS 4)

Published By American Society Of Clinical Oncology

2378-9506, 2378-9506

2019 ◽  
pp. 1-14 ◽  
Author(s):  
Anna Luiza S.A. Vicente ◽  
Camila S. Crovador ◽  
Graziela Macedo ◽  
Cristovam Scapulatempo-Neto ◽  
Rui M. Reis ◽  
...  

PURPOSE Mutation testing of the key genes involved in melanoma oncogenesis is now mandatory for the application of targeted therapeutics. However, knowledge of the mutational profile of melanoma remains largely unknown in Brazil. PATIENTS AND METHODS In this study, we assessed the mutation status of melanoma driver genes BRAF, NRAS, TERT, KIT, and PDGFRA in a cohort of 459 patients attended at Barretos Cancer Hospital between 2001 and 2012. We used polymerase chain reaction followed by Sanger sequencing to analyze the hot spot mutations of BRAF exon 15 (V600E), NRAS (codons 12/13 and 61), TERT (promoter region), KIT (exons 9, 11, 13, and 17), and PDGFRA (exons 12, 14, and 18) in tumors. The mutational profile was investigated for associations with demographic, histopathologic, and clinical features of the disease. RESULTS The nodular subtype was most frequent (38.9%) followed by the superficial spreading subtype (34.4%). The most frequent tumor location was in the limbs (50.0%). The mutation rates were 34.3% for TERT and 34.1% for BRAF followed by NRAS (7.9%), KIT (6.2%), and PDGFRA (2.9%). The BRAF ( P = .014) and TERT ( P = .006) mutations were associated with younger patients and with different anatomic locations, particularly in the trunk, for the superficial spreading and nodular subtypes, respectively ( P = .0001 for both). PDGFRA mutations were associated with black skin color ( P = .023) and TERT promoter mutations with an absence of ulceration ( P = .037) and lower levels of lactate dehydrogenase. There was no association between patient survival rates and mutational status. CONCLUSION The similar mutational profile we observe in melanomas in Brazil compared with other populations will help to guide precision medicine in this country.


2019 ◽  
pp. 1-9
Author(s):  
Kelly Kisling ◽  
Lifei Zhang ◽  
Hannah Simonds ◽  
Nazia Fakie ◽  
Jinzhong Yang ◽  
...  

Purpose The purpose of this study was to validate a fully automatic treatment planning system for conventional radiotherapy of cervical cancer. This system was developed to mitigate staff shortages in low-resource clinics. Methods In collaboration with hospitals in South Africa and the United States, we have developed the Radiation Planning Assistant (RPA), which includes algorithms for automating every step of planning: delineating the body contour, detecting the marked isocenter, designing the treatment-beam apertures, and optimizing the beam weights to minimize dose heterogeneity. First, we validated the RPA retrospectively on 150 planning computed tomography (CT) scans. We then tested it remotely on 14 planning CT scans at two South African hospitals. Finally, automatically planned treatment beams were clinically deployed at our institution. Results The automatically and manually delineated body contours agreed well (median mean surface distance, 0.6 mm; range, 0.4 to 1.9 mm). The automatically and manually detected marked isocenters agreed well (mean difference, 1.1 mm; range, 0.1 to 2.9 mm). In validating the automatically designed beam apertures, two physicians, one from our institution and one from a South African partner institution, rated 91% and 88% of plans acceptable for treatment, respectively. The use of automatically optimized beam weights reduced the maximum dose significantly (median, −1.9%; P < .001). Of the 14 plans from South Africa, 100% were rated clinically acceptable. Automatically planned treatment beams have been used for 24 patients with cervical cancer by physicians at our institution, with edits as needed, and its use is ongoing. Conclusion We found that fully automatic treatment planning is effective for cervical cancer radiotherapy and may provide a reliable option for low-resource clinics. Prospective studies are ongoing in the United States and are planned with partner clinics.


2019 ◽  
pp. 1-7
Author(s):  
José A. Sánchez ◽  
Mayra G. Handal ◽  
Juan F. Vílchez Rodriguez ◽  
Sinthia I. Mejía ◽  
Annye P. Pagoaga

PURPOSE In cancer, clinical staging is related to outcomes, and this is linked to the evolution of the disease over time. In Honduras, cancer mortality is high, and time intervals from onset of symptoms to treatment of cancer are not known. We conducted a cross-sectional study to determine these intervals. PATIENTS AND METHODS This investigation was carried out from April 25 to August 30, 2018, and included 202 patients at the main cancer referral center in Honduras. For the purposes of the study, information was obtained from patients, their caregiver, medical records, or treatment cards. Patients older than age 18 years were included after informed consent was signed. RESULTS The mean time interval from onset of symptoms to cancer treatment was 232 days. Different intervals of time were identified, and the mean of these intervals was calculated in days as follows: 68 days from onset of symptoms to first medical evaluation; 146 days from first evaluation to oncologist consultation; 26 days from cancer specialist to the pathology report; and 86 days from the histopathologic diagnosis to the beginning of treatment. Once diagnosis was established, the average elapsed times to chemotherapy, radiotherapy, surgery, and chemoradiotherapy were 88, 102, 76, and 154 days, respectively ( P < .05, when surgery is compared against chemotherapy and radiotherapy). CONCLUSION The mean time interval from symptom presentation to treatment in patients with cancer is more than 7 months. This could explain the advanced stages of disease seen at the time of treatment in Honduras, which decrease chance of cure and increase the mortality rate of cancer). Appropriate intervention to decrease these intervals must be taken to reduce mortality.


2019 ◽  
pp. 1-8
Author(s):  
Cássia Rita Pereira da Veiga ◽  
Claudimar Pereira da Veiga ◽  
Ana Paula Drummond-Lage ◽  
Alberto Julius Alves Wainstein ◽  
Andreia Cristina de Melo

PURPOSE New scientific evidence has led to modifications in the clinical practice of handling melanoma. In health care systems, there is currently a wide variety of clinical procedures to treat cancer, and the various routes have different effects on the survival of patients with cancer. Thus, this article aimed to evaluate the journey of patients with melanoma in the public and private health care systems in Brazil from the viewpoint of different medical professionals involved in the diagnosis and treatment of the disease. The study also considers the resources used for the complete delivery cycle of health care at different stages of the evolution of melanoma. METHODS We conducted a behavioral study by applying a questionnaire to a group of medical professionals. A nonprobabilistic sampling method for convenience was used, justified by the heterogeneous national incidence and the limited availability of medical professionals who diagnose and treat melanoma. RESULTS The questionnaire was answered by 138 doctors, including doctors from the Brazilian states with the highest concentration of medical specialists and regions with a higher melanoma incidence. The results of this study have the potential to enrich our understanding of the reality of Brazilian health care systems and, at the same time, allow us to discuss the multiple ways in which professionals from diverse specialist fields understand and explain decision making in health care. CONCLUSION Health care decision making is complex and, among other factors, depends on the diversity of available health resources and the knowledge of which treatments provide the greatest benefit to patients and greatest value to the system as a whole. This work can inform debates and reflection that are applicable not only in Brazil, but also in various other countries with similar realities.


2019 ◽  
pp. 1-6
Author(s):  
Olivier Habimana ◽  
Vestine Mukeshimana ◽  
Albertine Ahishakiye ◽  
Protais Makuza ◽  
Vedaste Hategekimana ◽  
...  

PURPOSE The Butaro Cancer Centre of Excellence is the first comprehensive referral cancer center in Rwanda and at its inception did not have a standardized patient education program. Partners in Health/Inshuti Mu Buzima and the Rwandan Ministry of Health conducted a quality improvement project to increase patient knowledge by implementing a standardized oncology education program using picture-based and culturally appropriate materials designed for patients with cancer in low- and middle-income countries. METHODS Four Rwandan nurses were trained to provide patient education using the Cancer and You education booklet created by Global Oncology. A pre- and post-test design was used to evaluate patients’ knowledge of cancer, treatment, and management of adverse effects. Nurses administered a posteducation questionnaire in Kinyarwanda to determine patients’ level of satisfaction with the education session and booklet. The four nurses were interviewed at the completion of the project for their feedback. A total of 40 oncology patients were included in the pilot project, of which 85% reported completing primary school or less. RESULTS On average, participants improved 19% (95% CI, 13.9% to 24.1%; standard deviation, 16%) from pre- to postevaluation, demonstrating a significant increase in knowledge ( P ≤ .001). Nearly all patients (97.5%) reported that they were either satisfied or very satisfied with the education program. Oncology nurses gave positive feedback, highlighting that it was helpful to have a standard tool for education with descriptive illustrations for those patients with low literacy. CONCLUSION Implementation of a standardized patient education program demonstrated a statistically significant increase in patient knowledge and a high level of satisfaction among patients and nurses. The project serves as an example for other low- and middle-income countries looking to standardize oncology patient education.


2019 ◽  
pp. 1-2
Author(s):  
Lucilla Verna ◽  
Alessio Cortellini ◽  
Raffaele Giusti ◽  
Corrado Ficorella ◽  
Giampiero Porzio
Keyword(s):  

2019 ◽  
pp. 1-10
Author(s):  
David Bravo-Linares ◽  
Andrés M. Acevedo-Melo ◽  
Alejandro Ruiz-Patiño ◽  
Luisa Ricaurte ◽  
Diana Lucio-Arias ◽  
...  

PURPOSE Cancer morbidity represents an increasing public health issue; this worldwide phenomenon also is true for emerging upper-middle-income countries, such as Colombia. The main purpose of this study was to uncover the relationship between scientific productivity and cancer-related mortality in our setting. METHODS We conducted a temporal-trend ecologic study by means of bibliometric analysis from records of publications from SCOPUS database with Colombian institutional affiliations between 2000 and 2015. Productivity and overall mortality were estimated and compared using econometric modeling to identify potential correlations. Additional exploratory analyses per six most frequent cancer sites were performed. RESULTS Of 2,645 publication records retrieved, 1,464 (55.3%) met selection criteria to be classified as Colombian scientific production (interobserver agreement, 92.96%; κ = 0.859; 95% CI, 0.800 to 0.918). Overall, 79.6% of the records corresponded to original or in-press articles; furthermore, almost half (49.7%) embodied descriptive study designs. Selected records reported a median of five authors and three different affiliations per publication; 66% had been cited at least once up to September 2017. The most-studied cancer-specific locations were cervix (16.1%), breast (11.5%), and stomach (9.8%), but nonspecific locations had the largest combined participation (23.4%). An increasing trend in scientific productivity was correlated to decreasing trend in overall cancer mortality, which was reported as an inverse proportional relationship in the linear regression modeling ( r = −0.958; P < .001). Graphic analyses per cancer-specific sites revealed heterogeneous behaviors of this relationship. CONCLUSION Colombian cancer-specific scientific productivity demonstrated a steady growth as opposed to a decreasing mortality trend in the recent years. The research output is predominantly descriptive with relatively low interinstitutional partnership and low impact in the international scientific community.


2019 ◽  
pp. 1-12
Author(s):  
Amanda L. Vogel ◽  
Douglas M. Puricelli Perin ◽  
Ya-Ling Lu ◽  
Stephen H. Taplin

PURPOSE International research networks have the potential to accelerate scientific progress via knowledge sharing and collaboration. In 2018, the US National Cancer Institute evaluated the International Cancer Screening Network (ICSN), in operation since 1988. METHODS ICSN hosts a biennial scientific meeting and scientific working groups. A survey was fielded to 665 ICSN participants, and a bibliometric analysis was conducted for ICSN publications. RESULTS A total of 243 individuals completed the survey (36.5%). They reported that participating in the ICSN helped advance their knowledge of cancer screening research (75.7%), policy development (56%), and implementation (47.7%). Approximately three-quarters agreed that ICSN facilitated knowledge sharing and networking among researchers and implementers (79.9%) and those working on different continents (74.0%) and cancer sites (73.7%). More than half reported that participating helped them form new collaborations in screening implementation (58.0%) or research (57.6%). Most agreed that ICSN helped to advance screening research and evaluation (75.4%), effective screening practices (71.2%), and screening policies (60.9%). Many reported that participating informed advances in their own research (68.7%) and screening implementation (50.2%) and policies (49.4%) in their settings. Approximately two-thirds agreed that ICSN helped advance career development among current experts (66.6%) and train the next generation (62.2%). Half (51.4%) reported that participating advanced their own careers. The 20 ICSN publications included 75 coauthors. They were cited in 589 publications with more than 2,000 coauthors. CONCLUSION Findings provide evidence of the influence of ICSN on international knowledge dissemination, collaboration, and advances in cancer screening research, implementation, and policies and highlight the potential value of longstanding international research networks.


2019 ◽  
pp. 1-12 ◽  
Author(s):  
Laila Hessissen ◽  
Catherine Patte ◽  
Helene Martelli ◽  
Carole Coze ◽  
Scott C. Howard ◽  
...  

PURPOSE In 2012, the French African Pediatric Oncology Group established the African School of Pediatric Oncology (EAOP), a training program supported by the Sanofi Espoir Foundation’s My Child Matters program. As part of the EAOP, the pediatric oncology training diploma is a 1-year intensive training program. We present this training and certification program as a model for subspecialty training for low- and middle-income countries. METHODS A 14-member committee of multidisciplinary experts finalized a curriculum patterned on the French model Diplôme Inter-Universitaire d’Oncologie Pédiatrique. The program trained per year 15 to 25 physician participants committed to returning to their home country to work at their parent institutions. Training included didactic lectures, both in person and online; an onsite practicum; and a research project. Evaluation included participant evaluation and feedback on the effectiveness and quality of training. RESULTS The first cohort began in October 2014, and by January 2019, 72 participants from three cohorts had been trained. Of the first 72 trainees from 19 French-speaking African countries, 55 (76%) graduated and returned to their countries of origin. Four new pediatric oncology units have been established in Niger, Benin, Central African Republic, and Gabon by the graduates. Sixty-six participants registered on the e-learning platform and continue their education through the EAOP Web site. CONCLUSION This training model rapidly increased the pool of qualified pediatric oncology professionals in French-speaking countries of Africa. It is feasible and scalable but requires sustained funding and ongoing mentoring of graduates to maximize its impact.


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