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1.
J Hepatocell Carcinoma ; 11: 349-362, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38385059

RESUMO

Hepatocellular carcinoma (HCC) is the sixth most common type of cancer in the world associated with high morbidity and mortality. Despite being a significant healthcare burden there is limited information on the unmet needs and current treatment practices for intermediate and advanced-stage HCC in Saudi Arabia. This article analyzes the gaps and provides expert consensus on the management strategies for unresectable HCC in Saudi Arabia. A pre-meeting online questionnaire, comprising 20 objective questions about the treatment landscape and diagnosis of HCC in Saudi Arabia, was distributed to experts in the field of HCC management. An advisory board meeting including a panel of 13 experts was held in September 2022 where the responses to the survey questionnaire were reviewed and discussed. The survey results and experts' discussion highlighted the growing incidence of liver cancer in Saudi Arabia. HCC comprised the majority of all liver cancer cases due to rising rates of chronic viral infections and lifestyle-related risk factors. Most physicians in Saudi Arabia follow the Barcelona Clinic Liver Cancer guidelines as a prognostic tool for the detection and staging of patients with HCC. Most of the patients with HCC in Saudi Arabia are diagnosed in the intermediate or advanced stages with poor prognoses and limited therapeutic options. Establishing evidence-based surveillance techniques, a multidisciplinary approach to diagnosis, and better accessibility of treatment options is vital for the management of HCC in Saudi Arabia.

2.
Hosp Pract (1995) ; 51(5): 275-287, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38112178

RESUMO

OBJECTIVES: This study described the epidemiological, clinical, and survival profiles of patients with gastrointestinal stromal tumor (GIST) in North Africa and the Middle East (AfME). METHODS: This regional, multicenter, observational, retrospective study collected 11-year data on demographics, medical history, disease characteristics, current treatment approaches of GIST, the safety of the most common tyrosine kinase inhibitors (TKIs), second cancers, and survival status. RESULTS: Data of 201 eligible patients were analyzed: mean age was 56.9 ± 12.6 years; 111 (55.2%) patients were men, 21 (10.4%) patients had previous personal malignancy. The most common clinical presentation of GIST was dysphagia [92 (45.8%) patients]. The stomach was the most common primary site in 120 (60.7%) patients, 171 (85.1%) patients had localized disease at diagnosis. 198 (98.5%) GIST cases were CD117/CD34-positive. Imatinib was used in the neoadjuvant (18/21 patients), adjuvant (85/89 patients), and first-line metastatic treatment (28/33 patients) settings. The most common non-hematological toxicity associated with TKIs was vomiting in 32/85 (37.6%) patients. Overall, 100 (49.8%) patients (95%CI: 42.8-56.7%) were alive and disease-free while 30 (14.9%) patients were alive with active disease. CONCLUSION: Presentation of GIST in our AfME population is consistent with global reports, being more frequent in patients >50 years old and having the stomach as the most common primary site. Unlike what is usually reported, though, we did have more patients with lymphatic spread of the disease. Despite the global trend and advances in the treatment of GIST according to molecular profile, this is still far to happen in our population given the lack of access to molecular profiles and the high associated cost.


Assuntos
Antineoplásicos , Neoplasias Gastrointestinais , Tumores do Estroma Gastrointestinal , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , África do Norte/epidemiologia , Antineoplásicos/efeitos adversos , Neoplasias Gastrointestinais/diagnóstico , Neoplasias Gastrointestinais/tratamento farmacológico , Neoplasias Gastrointestinais/epidemiologia , Tumores do Estroma Gastrointestinal/diagnóstico , Tumores do Estroma Gastrointestinal/tratamento farmacológico , Tumores do Estroma Gastrointestinal/epidemiologia , Mesilato de Imatinib/efeitos adversos , Oriente Médio/epidemiologia , Estudos Retrospectivos
3.
East Mediterr Health J ; 29(8): 657-663, 2023 Aug 31.
Artigo em Inglês | MEDLINE | ID: mdl-37698221

RESUMO

Background: Complementary and alternative medicine is widely used in Saudi Arabia. One of the common practices is the use of camel urine alone or mixed with camel milk for the treatment of cancer, which is often supported by religious beliefs. Aims: To observe and follow-up cancer patients who insisted on using camel urine, and to offer some clinically relevant recommendations. Methods: We observed 20 cancer patients (15 male, 5 female) from September 2020 to January 2022 who insisted on using camel urine for treatment. We documented the demographics of each patient, the method of administering the urine, reasons for refusing conventional treatment, period of follow-up, and the outcome and side effects. Results: All the patients had radiological investigations before and after their treatment with camel urine. All of them used a combination of camel urine and camel milk, and treatment ranged from a few days to 6 months. They consumed an average of 60 ml urine/milk per day. No clinical benefit was observed after the treatment; 2 patients developed brucellosis. Eleven patients changed their mind and accepted conventional antineoplastic treatment and 7 were too weak to receive further treatment; they died from the disease. Conclusion: Camel urine had no clinical benefits for any of the cancer patients, it may even have caused zoonotic infection. The promotion of camel urine as a traditional medicine should be stopped because there is no scientific evidence to support it.


Assuntos
Brucelose , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos , Neoplasias , Feminino , Masculino , Humanos , Animais , Camelus , Neoplasias/terapia , Medicina Tradicional , Estudos Observacionais Veterinários como Assunto
4.
Oncotarget ; 14: 580-594, 2023 06 12.
Artigo em Inglês | MEDLINE | ID: mdl-37306523

RESUMO

Family history is an important factor in determining hereditary cancer risk for many cancer types. The emergence of next-generation sequencing (NGS) has expedited the discovery of many hereditary cancer susceptibility genes and the development of rapid, affordable testing kits. Here, a 30-gene targeted NGS panel for hereditary cancer risk assessment was tested and validated in a Saudi Arabian population. A total of 310 subjects were screened, including 57 non-cancer patients, 110 index patients with cancer and 143 of the cancer patients' family members, 16 of which also had cancer. Of the 310 subjects, 119 (38.4%) were carriers of pathogenic or likely pathogenic variants (PVs) affecting one or more of the following genes: TP53, ATM, CHEK2, CDH1, CDKN2A, BRCA1, BRCA2, PALB2, BRIP1, RAD51D, APC, MLH1, MSH2, MSH6, PMS2, PTEN, NBN/NBS1 and MUTYH. Among 126 patients and relatives with a history of cancer, 49 (38.9%) were carriers of PVs or likely PVs. Two variants in particular were significantly associated with the occurrence of a specific cancer in this population (APC c.3920T>A - colorectal cancer/Lynch syndrome (p = 0.026); TP53 c.868C>T; - multiple colon polyposis (p = 0.048)). Diverse variants in BRCA2, the majority of which have not previously been reported as pathogenic, were found at higher frequency in those with a history of cancer than in the general patient population. There was a higher background prevalence of genetic variants linked to familial cancers in this cohort than expected based on prevalence in other populations.


Assuntos
Neoplasias Colorretais , Neoplasias Nasofaríngeas , Humanos , Arábia Saudita , Sequenciamento de Nucleotídeos em Larga Escala , Prevalência , Predisposição Genética para Doença
5.
Cancers (Basel) ; 15(3)2023 Jan 19.
Artigo em Inglês | MEDLINE | ID: mdl-36765601

RESUMO

Epstein Barr Virus (EBV) is implicated in the carcinogenesis of nasopharyngeal carcinoma (NPC) and currently associated with at least 1% of global cancers. The differential prognosis analysis of NPC in EBV genotypes remains to be elucidated. Medical, radiological, pathological, and laboratory reports of 146 NPC patients were collected retrospectively over a 6-year period between 2015 and 2020. From the pathology archives, DNA was extracted from tumor blocks and used for EBV nuclear antigen 3C (EBNA-3C) genotyping by nested polymerase chain reaction (PCR). We found a high prevalence of 96% of EBV infection in NPC patients with a predominance of genotype I detected in 73% of NPC samples. Histopathological examination showed that most of the NPC patients were in the advanced stages of cancer: stage III (38.4%) or stage IV-B (37.7%). Only keratinized squamous cell carcinoma was significantly higher in EBV negative NPC patients compared with those who were EBV positive (OR = 0.01, 95%CI = (0.004-0.32; p = 0.009)), whereas the majority of patients (91.8%) had undifferentiated, non-keratinizing squamous cell carcinoma, followed by differentiated, non-keratinizing squamous cell carcinoma (7.5%). Although NPC had metastasized to 16% of other body sites, it was not associated with EBV infection, except for lung metastasis. A statistically significant reverse association was observed between EBV infection and lung metastasis (OR = 0.07, 95%CI = (0.01-0.51; p = 0.008)). Although 13% of NPC patients died, the overall survival (OS) mean time was 5.59 years. Given the high prevalence of EBV-associated NPC in our population, Saudi could be considered as an area with a high incidence of EBV-associated NPC with a predominance of EBV genotype I. A future multi-center study with a larger sample size is needed to assess the true burden of EBV-associated NPC in Saudi Arabia.

6.
Asian Pac J Cancer Prev ; 24(1): 13-19, 2023 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-36708547

RESUMO

Colorectal cancer is the most common cancer in Saudi males and the second most common cancer in Saudi females with increasing incidence throughout the last four decades. Although the disease incidence is on the rise, still there is no systemic screening for colorectal cancer in the Saudi population. Early onset colorectal cancer is common in the Saudi population and up to 50% in Saudi patients diagnosed at late stages with regional and distal metastasis. Therefore, more efforts are required to control the disease in the Kingdom of Saudi Arabia. In this regard,  systematic work at national level is highly required to make  colorectal cancer screening for population at risk part of the routine primary health care activities. This paper highlights the current situation of colorectal cancer in the Kingdom of Saudi Arabia with relation to incidence, mortality and morbidity in addition to the disease control efforts going on. Finally, some recommendations are provided to strengthen the control program of colorectal cancer.


Assuntos
Neoplasias Colorretais , Masculino , Feminino , Humanos , Arábia Saudita/epidemiologia , Neoplasias Colorretais/diagnóstico , Neoplasias Colorretais/epidemiologia , Neoplasias Colorretais/prevenção & controle , Incidência , Detecção Precoce de Câncer , Fatores de Risco
7.
Turk J Gastroenterol ; 34(2): 118-127, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-36445057

RESUMO

BACKGROUND: Rat sarcoma virus mutational status guides first-line treatment in metastatic colorectal cancer. This study was a multi center, multi-country ambispective, observational study in the Middle East and North Africa assessing regional rat sarcoma virus testing practices in newly diagnosed patients. METHODS: The retrospective arm (2011-2014) included adults with metastatic colorectal cancer who had initiated first-line therapy with ≥1 post-baseline visit and survival data. The prospective arm (2014-2019) enrolled newly diagnosed patients with histologically proven metastatic colorectal cancer with ≥1 measurable lesion per Response Evaluation Criteria in Solid Tumors, and tissue availability for biomarker analysis. Data look-back and follow-up were 2 years; the rate of RAS mutation was evaluated. RESULTS: RAS testing was ordered for patients in retrospective (326/417) and prospective (407/500) studies. In the former, testing was typically prescribed after first-line treatment initiation, significantly more in patients with stage IV disease (P < .005), resulting in the addition of targeted therapy (41.8% anti-epidermal growth factor receptor, 30.2% anti-vascular endothelial growth factor) in wild-type metastatic colorectal cancer, and significantly impacted the treatment of left-sided tumors (P = .037). In the latter, 58.4% were RAS wild-type; 41.6% were RAS mutant. Non-prescription of RAS testing was attributed to test unavailability, financial, or medical rea sons; predictors of testing prescription were older age, primary tumor in ascending colon, and high tumor grade. RAS status knowledge resulted in the addition of anti-vascular endothelial growth factor (20.4%) or anti-epidermal growth factor receptor therapy (21.2%). CONCLUSION: Before 2014, RAS testing in patients with colorectal cancer in the Middle East and North Africa was often performed after first-line treatment. Testing is more routine in newly diagnosed patients, potentially shifting early treatment patterns.


Assuntos
Neoplasias do Colo , Neoplasias Colorretais , Neoplasias Retais , Humanos , Protocolos de Quimioterapia Combinada Antineoplásica , Neoplasias Colorretais/genética , Fatores de Crescimento Endotelial/genética , Fatores de Crescimento Endotelial/uso terapêutico , Mutação , Estudos Prospectivos , Proteínas Proto-Oncogênicas p21(ras)/genética , Receptores de Fatores de Crescimento/genética , Receptores de Fatores de Crescimento/uso terapêutico , Estudos Retrospectivos , Sistema de Registros
8.
Urol Ann ; 14(4): 303-313, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36505997

RESUMO

Despite the reliance on Western guidelines for managing prostate cancer (PC), there are wide variations and gaps in treatment among developing countries such as the Middle East African (MEA) region. A multidisciplinary team of experts from the MEA region engaged in a comprehensive discussion to identify the real-world challenges in diagnostics and treatment of Metastatic Castration-Resistant Prostate Cancer (mCRPC) and provided insights on the urgent unmet needs. We present a consensus document on the region-specific barriers, key priority areas and strategic recommendations by experts for optimizing management of mCRPC in the MEA. Limited access to genetic testing and economic constraints were highlighted as major concerns in the MEA. As the therapeutic landscape continues to expand, treatment selection for mCRPC needs to be increasingly personalized. Enhanced genetic testing and judicious utilization of newer therapies like olaparib, articulated by reimbursement support, should be made accessible for the underserved populations in the MEA. Increasing awareness on testing through educational activities catalyzed by digital technologies can play a central role in overcoming barriers to patient care in the MEA region. The involvement of multidisciplinary teams can bridge the treatment gaps, facilitating holistic and optimal management of mCRPC. Region-specific guidelines can help health-care workers navigate challenges and deliver personalized management through collaborative efforts - thus curb health-care variations and drive consistency. Development of region-specific scalable guidelines for genetic testing and treatment of mCRPC, factoring in the trade-off for access, availability, and affordability, is crucial.

9.
Genes (Basel) ; 13(4)2022 03 25.
Artigo em Inglês | MEDLINE | ID: mdl-35456396

RESUMO

The diagnostic and prognostic utility of circulating cell-free DNA (cfDNA) in breast cancer (BC) patients was recently reported. Here, we investigated the use of cfDNA to examine microsatellite instability (MSI) and loss of heterozygosity (LOH) for early BC diagnosis. cfDNA and genomic DNA from 41 female BC patients and 40 healthy controls were quantified using NanoDrop spectrophotometry and real-time PCR. The stability of genomic and cfDNA was assessed using a high-resolution AmpFlSTR MiniFiler human identification kit. Significant increases in cfDNA plasma concentrations were observed in BC patients compared to controls. The genotype distribution of the eight autosomal short tandem repeat (STR) loci D7S820, D13S317, D21S11, D2S1338, D18S51, D16S539, FGA, and CSF1PO were in Hardy-Weinberg equilibrium. Significant differences in the allele frequencies of D7S820 allele-8, D21S11 allele-29, allele-30.2, allele-32.2, and CSF1PO allele-11 were seen between BC patients and controls. LOH and MSI were detected in 36.6% of the cfDNA of patients compared to genomic DNA. This study highlights the utility of plasma-derived cfDNA for earlier, less invasive, and cost-effective cancer diagnosis and molecular stratification. It also highlights the potential value of cfDNA in molecular profiling and biomarkers discovery in precision and forensic medicine.


Assuntos
Neoplasias da Mama , Ácidos Nucleicos Livres , Neoplasias da Mama/diagnóstico , Neoplasias da Mama/genética , Ácidos Nucleicos Livres/genética , DNA , Impressões Digitais de DNA , Feminino , Antropologia Forense , Genética Populacional , Humanos , Perda de Heterozigosidade , Masculino , Instabilidade de Microssatélites
10.
Future Oncol ; 17(35): 4871-4882, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34472365

RESUMO

Objective: Our study goal was to evaluate the behavioral response and practices of cancer patients to the coronavirus disease 2019 (COVID-19) pandemic in the Middle East and north Africa. Methods: A cross-sectional study was conducted using a validated anonymous 45-question survey administered via SurveyMonkey® to cancer patients in 13 centers in Algeria, Egypt, Jordan, Kuwait, Morocco and Saudi Arabia. Results: During the study period (from 21 April to 30 May 2020), 3642 patients participated in the study. The majority of patients (84.81%) were worried about contracting the infection. The reported strict adherence to precautions included avoiding the following actions: hand-shaking (77.40%), hugging and kissing (82.89%), social gathering (90.09%), meeting friends (84.68%) and visiting markets (75.65%). In a multivariate analysis, patients with poor precautionary practices were about twice as likely to cancel their medical appointment or a treatment session. Conclusion: Improving cancer patients' knowledge of and adherence to precautionary measures is needed not just to reduce the risk of acquiring infection but also to minimize the interruption of their medical care.


Lay abstract COVID-19 poses a higher risk for patients with cancer than other patients; therefore, it is prudent that they adhere to precautionary measures to protect themselves from the infection. We conducted a study to evaluate the behaviors and practices of these patients in response to the COVID-19 pandemic in the Middle, East and North Africa. We developed a survey of 45 questions that was distributed in 13 centers in Algeria, Egypt, Jordan, Kuwait, Morocco and Saudi Arabia between 21 April and 30 May 2020. About 85% of the 3642 patients who participated in the study were worried about contracting the infection. A substantial percentage of them (10­30%) were not adhering to various precautions and social distancing rules. On the other hand, 16% of them canceled medical appointments and 12% canceled treatment sessions. Our study showed the need for better adherence of patients with cancer to the infection precautions and most importantly, the need to have a better compliance with their treatment plans, such as keeping their scheduled appointments, to avoid harms from treatment delays.


Assuntos
Ansiedade/epidemiologia , COVID-19/epidemiologia , Neoplasias/epidemiologia , Pandemias , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Ansiedade/complicações , Ansiedade/psicologia , Ansiedade/virologia , COVID-19/complicações , COVID-19/psicologia , COVID-19/virologia , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Marrocos/epidemiologia , Neoplasias/complicações , Neoplasias/psicologia , Neoplasias/virologia , SARS-CoV-2/patogenicidade , Arábia Saudita/epidemiologia , Inquéritos e Questionários , Adulto Jovem
11.
J Pers Med ; 11(6)2021 Jun 09.
Artigo em Inglês | MEDLINE | ID: mdl-34207827

RESUMO

Biomarker discovery would be an important tool in advancing and utilizing the concept of precision and personalized medicine in the clinic. Discovery of novel variants in local population provides confident targets for developing biomarkers for personalized medicine. We identified the need to generate high-quality sequencing data from local colorectal cancer patients and understand the pattern of occurrence of variants. In this report, we used archived samples from Saudi Arabia and used the AmpliSeq comprehensive cancer panel to identify novel somatic variants. We report a comprehensive analysis of next-generation sequencing results with a coverage of >300X. We identified 466 novel variants which were previously unreported in COSMIC and ICGC databases. We analyzed the genes associated with these variants in terms of their frequency of occurrence, probable pathogenicity, and clinicopathological features. Among pathogenic somatic variants, 174 were identified for the first time in the large intestine. APC, RET, and EGFR genes were most frequently mutated. A higher number of variants were identified in the left colon. Occurrence of variants in ERBB2 was significantly correlated with those of EGFR and ATR genes. Network analyses of the identified genes provide functional perspective of the identified genes and suggest affected pathways and probable biomarker candidates. This report lays the ground work for biomarker discovery and identification of driver gene mutations in local population.

12.
Mol Clin Oncol ; 14(4): 82, 2021 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-33758663

RESUMO

Administration of effective anticancer treatments should continue during pandemics. However, the outcomes of curative and palliative anticancer treatments during the coronavirus disease (COVID-19) pandemic remain unclear. The present retrospective observational study aimed to determine the 30-day mortality and morbidity of curative and palliative anticancer treatments during the COVID-19 pandemic. Between March 1 and June 30, 2020, all adults (n=2,504) with solid and hematological malignancies irrespective of cancer stage and type of anticancer treatments at five large comprehensive cancer centers in Saudi Arabia were included. The 30-day mortality was 5.1% (n=127) for all patients receiving anticancer treatment, 1.8% (n=24) for curative intent, 8.6% (n=103) for palliative intent and 13.4% (n=12) for COVID-19 cases. The 30-day morbidity was 28.2% (n=705) for all patients, 17.9% (n=234) for curative intent, 39.3% (n=470) for palliative intent and 75% (n=77) for COVID-19 cases. The 30-day mortality was significantly increased with male sex [odds ratio (OR), 2.011; 95% confidence interval (CI), 1.141-3.546; P=0.016], body mass index (BMI) <25 (OR, 1.997; 95% CI, 1.292-3.087; P=0.002), hormone therapy (OR, 6.315; 95% CI, 0.074-2.068; P=0.001) and number of cycles (OR, 2.110; 95% CI, 0.830-0.948; P=0.001), but decreased with Eastern Cooperative Oncology Group performance status (ECOG-PS) of 0-1 (OR, 0.157; 95% CI, 0.098-0.256; P=0.001), stage I-II cancer (OR, 0.254; 95% CI, 0.069-0.934; P=0.039) and curative intent (OR, 0.217; 95% CI, 0.106-0.443; P=0.001). Furthermore, the 30-day morbidity significantly increased with age >65 years (OR, 1.420; 95% CI, 1.075-1.877; P=0.014), BMI <25 (OR, 1.484; 95% CI, 1.194-1.845; P=0.001), chemotherapy (OR, 1.397; 95% CI, 1.089-5.438; P=0.032), hormone therapy (OR, 1.527; 95% CI, 0.211-1.322; P=0.038) and immunotherapy (OR, 1.859; 95% CI, 0.648-4.287; P=0.038), but decreased with ECOG-PS of 0-1 (OR, 0.502; 95% CI, 0.399-0.632; P=0.001), breast cancer (OR, 0.569; 95% CI, 0.387-0.836; P=0.004) and curative intent (OR, 0.410; 95% CI, 0.296-0.586; P=0.001). The mortality risk was lowest with curative treatments. Therefore, such treatments should not be delayed. The morbidity risk doubled with palliative treatments and was highest among COVID-19 cases. Mortality appeared to be driven by male sex, BMI <25, hormonal therapy and number of cycles, while morbidity increased with age >65 years, BMI <25, chemotherapy, hormonal therapy and immunotherapy. Therefore, oncologists should select the most effective anticancer treatments based on the aforementioned factors.

13.
JCO Glob Oncol ; 7: 242-252, 2021 02.
Artigo em Inglês | MEDLINE | ID: mdl-33571005

RESUMO

PURPOSE: As frontline workers facing the COVID-19 pandemic, healthcare providers should be well-prepared to fight the disease and prevent harm to their patients and themselves. Our study aimed to evaluate the knowledge, attitude, and practice of oncologists in response to the COVID-19 pandemic and its impact on them. METHODS: A cross-sectional study was conducted using a validated questionnaire disseminated to oncologists by SurveyMonkey. The tool had 42 questions that captured participants' knowledge, attitude, and practice; their experiences; and the pandemic's impact on various aspects of their lives. Participants from Middle East and North African countries, Brazil, and the Philippines completed the electronic survey between April 24 and May 15, 2020. RESULTS: Of the 1,010 physicians who participated in the study, 54.75% were male and 64.95% were medical or clinical oncologists. The level of knowledge regarding the prevention and transmission of the virus was good in 52% of participants. The majority (92%) were worried about contracting the virus either extremely (30%) or mildly (62%), and 84.85% were worried about transmitting the virus to their families. Approximately 76.93% reported they would take the COVID 19 vaccine once available, with oncologists practicing in Brazil having the highest odds ratio of intention to receive the COVID-19 vaccine (odds ratio, 11.8, 95% CI, 5.96 to 23.38, P < .001). Participants reported a negative impact of the pandemic on relations with coworkers (15.84%), relations with family (27.84%), their emotional and mental well-being (48.51%), research productivity (34.26%), and financial income (52.28%). CONCLUSION: The COVID-19 pandemic has adverse effects on various personal and professional aspects of oncologists' lives. Interventions should be implemented to mitigate the negative impact and prepare oncologists to manage future crises with more efficiency and resilience.


Assuntos
COVID-19/prevenção & controle , Oncologistas/psicologia , SARS-CoV-2/isolamento & purificação , Inquéritos e Questionários , África do Norte , Brasil , COVID-19/epidemiologia , COVID-19/virologia , Estudos Transversais , Feminino , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Masculino , Oriente Médio , Oncologistas/economia , Oncologistas/estatística & dados numéricos , Pandemias , Filipinas , Padrões de Prática Médica , SARS-CoV-2/fisiologia
14.
Invest New Drugs ; 39(1): 226-231, 2021 02.
Artigo em Inglês | MEDLINE | ID: mdl-32851510

RESUMO

Glioblastoma is a fast-growing primary brain tumor observed in adults with the worst prognosis. Preclinical studies have demonstrated the encouraging anticancer activity of statins. This study evaluated the efficacy of atorvastatin in combination with standard therapy in patients with glioblastoma. In this prospective, open-label, single-arm, phase II study, patients were treated with atorvastatin in combination with the standard glioblastoma therapy comprising radiotherapy and temozolomide. The primary endpoint was progression-free survival (PFS) at 6 months (PFS-6). Among 36 patients enrolled from January 2014 to January 2017, the median age was 52 (20-69) years; 22% of the patients were aged ≥60 years, and 62% were male. Patients received atorvastatin for a median duration of 6.2 (0.3-28) months. At a median follow-up of 19 months, the PFS-6 rate was 66%, with a median PFS of 7.6 (5.7-9.4) months. In terms of Grade ≥ 3 hematological adverse events, thrombocytopenia and neutropenia occurred in 7% and 12% of patients, respectively. In multivariate analyses, high baseline low-density lipoprotein levels were associated with worse survival (P = 0.046). Atorvastatin was not shown to improve PFS-6. However, this study identified that high low-density lipoprotein levels are an independent predictor of poor cancer-related outcomes. Future clinical trials testing statins should aim to enroll patients with slow-growing tumors.Clinical trial information: NCT0202957 (December 12, 2013).


Assuntos
Antineoplásicos Alquilantes/uso terapêutico , Atorvastatina/uso terapêutico , Neoplasias Encefálicas/terapia , Quimiorradioterapia/métodos , Glioblastoma/terapia , Temozolomida/uso terapêutico , Adulto , Idoso , Antineoplásicos Alquilantes/administração & dosagem , Antineoplásicos Alquilantes/efeitos adversos , Atorvastatina/administração & dosagem , Atorvastatina/efeitos adversos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Intervalo Livre de Progressão , Estudos Prospectivos , Temozolomida/administração & dosagem , Temozolomida/efeitos adversos , Adulto Jovem
15.
J Family Med Prim Care ; 9(9): 5035-5040, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-33209840

RESUMO

BACKGROUND: Colorectal cancer (CRC) incidence and related mortalities have been steadily increasing in KSA over the past 20 years. CRC in the Kingdom of Saudi Arabia (KSA) population presents in younger ages and in more advanced disease states as compared to other countries. This study was aimed to determine factors (demographic, habitual, environmental, nutritional, and genetic) associated with CRC in Riyadh, KSA. MATERIALS AND METHODS: A matched case-control study conducted in the major hospitals in Riyadh (King Khalid university Hospital, King Faisal Specialist Hospital, Riyadh Military Hospital, Security Force Hospital, King Fahd Medical City). Here most of CRC cases are managed. The cases (n = 121) group included all recently diagnosed and pathologically confirmed Saudi cases of CRC identified during the period 1st of January 2017 till 31st of December 2018 who agreed to participate and fulfilled the inclusion criteria. A similar number of controls attending the study settings were selected consecutively from the clinics where cases were managed and matched on a 1:1 basis with cases based on age (+/-3 years) and gender. Data were collected using a structured questionnaire. Conditional logistic regression models were fitted to determine factors associated with risk of CRC. RESULT: This study included similar number of males and females in both groups: males 69 (57%) and females 52 (43%) in each group (Chi-square test P = 1.0). The mean (S.D) age in the cases group was 53.6 (S.D = 12.9) and 53.3 (S.D = 12.9) in the controls group (Student test P = 0.86). In the final multivariate conditional logistic regression model, variables independently associated with risk of colorectal cancer were body mass index (OR = 0.93; 95% CI 0.87-0.98; P = 0.011) employment status (inverse relation: OR = 0.33; 95% CI 0.14-0.77; P = 0.010), colon polyps (OR = 4.09; 95% CI 1.06-15.82; P = 0.041), and constipation (OR = 4.98; 95% CI 1.91-15.99; P = 0.001). CONCLUSION: Factors associated with CRC in the major referral hospitals in KSA were colon polyps, chronic constipation, and unemployment. These factors should be considered when screening for patients at risk for CRC.

16.
Future Oncol ; 16(34): 2879-2896, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-32869660

RESUMO

Aim: To analyze responses to first-line metastatic renal cell carcinoma (mRCC) treatment stratified by risk criteria. Patients & methods: Clinical trials and observational studies of patients aged ≥18 years, published January 2005-May 2019, were identified via Ovid from MEDLINE, EMBASE, the Cochrane Central Trials Register and the Cochrane Database of Systematic Reviews. Data extracted included progression-free survival (PFS), overall survival (OS) and objective response rate (ORR). Results: 47/1269 articles met eligibility criteria. Most studies stratified patients by International Metastatic RCC Database Consortium (n = 19) or Memorial Sloan Kettering Cancer Center (n = 21). PFS, OS and ORR varied according to risk group. Conclusion: Pembrolizumab + axitinib, ipilimumab + nivolumab and avelumab + axitinib were most effective across all risk groups. Favorable-risk patients benefit from sunitinib treatment.


Assuntos
Carcinoma de Células Renais/tratamento farmacológico , Neoplasias Renais/tratamento farmacológico , Carcinoma de Células Renais/mortalidade , Carcinoma de Células Renais/patologia , Tomada de Decisões , Humanos , Inibidores de Checkpoint Imunológico/uso terapêutico , Neoplasias Renais/mortalidade , Neoplasias Renais/patologia , Metástase Neoplásica , Risco
17.
JCO Glob Oncol ; 6: 1428-1438, 2020 09.
Artigo em Inglês | MEDLINE | ID: mdl-32986516

RESUMO

PURPOSE: The COVID-19 pandemic affected health care systems globally and resulted in the interruption of usual care in many health care facilities, exposing vulnerable patients with cancer to significant risks. Our study aimed to evaluate the impact of this pandemic on cancer care worldwide. METHODS: We conducted a cross-sectional study using a validated web-based questionnaire of 51 items. The questionnaire obtained information on the capacity and services offered at these centers, magnitude of disruption of care, reasons for disruption, challenges faced, interventions implemented, and the estimation of patient harm during the pandemic. RESULTS: A total of 356 centers from 54 countries across six continents participated between April 21 and May 8, 2020. These centers serve 716,979 new patients with cancer a year. Most of them (88.2%) reported facing challenges in delivering care during the pandemic. Although 55.34% reduced services as part of a preemptive strategy, other common reasons included an overwhelmed system (19.94%), lack of personal protective equipment (19.10%), staff shortage (17.98%), and restricted access to medications (9.83%). Missing at least one cycle of therapy by > 10% of patients was reported in 46.31% of the centers. Participants reported patient exposure to harm from interruption of cancer-specific care (36.52%) and noncancer-related care (39.04%), with some centers estimating that up to 80% of their patients were exposed to harm. CONCLUSION: The detrimental impact of the COVID-19 pandemic on cancer care is widespread, with varying magnitude among centers worldwide. Additional research to assess this impact at the patient level is required.


Assuntos
Institutos de Câncer/estatística & dados numéricos , Infecções por Coronavirus/prevenção & controle , Acessibilidade aos Serviços de Saúde/estatística & dados numéricos , Oncologia/estatística & dados numéricos , Neoplasias/terapia , Pandemias/prevenção & controle , Pneumonia Viral/prevenção & controle , Betacoronavirus/patogenicidade , COVID-19 , Institutos de Câncer/normas , Infecções por Coronavirus/epidemiologia , Infecções por Coronavirus/transmissão , Infecções por Coronavirus/virologia , Estudos Transversais , Carga Global da Doença , Acessibilidade aos Serviços de Saúde/normas , Humanos , Controle de Infecções/normas , Cooperação Internacional , Oncologia/normas , Pneumonia Viral/epidemiologia , Pneumonia Viral/transmissão , Pneumonia Viral/virologia , SARS-CoV-2 , Inquéritos e Questionários/estatística & dados numéricos
18.
Case Rep Oncol ; 12(3): 909-912, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31911777

RESUMO

The most common side effect for cancer patients using epidermal growth factor receptor inhibitors (EGFRI) is the development of an itchy papulopustular rash. In severe cases, the patients are forced to stop taking the medications, hence affecting treatment outcomes. We herein report a case of a 50-year-old patient who developed a papulopustular rash after starting erlotinib. He treated himself with Ziziphus spina-christi leaves which is a plant well known for its anti-inflammatory and antibacterial properties in the middle east. We hypothesize that the anti-inflammatory, soothing, and antibacterial activity of the Ziziphus tree might actually represent a possible better treatment of the rash than available treatments, particularly in patients on EGFR blockers, and hence improve treatment outcomes.

19.
Urol Ann ; 10(2): 138-145, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29719323

RESUMO

This is an update to the previously published Saudi guidelines for the evaluation and medical and surgical management of patients diagnosed with prostate cancer. Prostate cancer is categorized according to the stage of the disease using the tumor node metastasis staging system 7th edition. The guidelines are presented with supporting evidence levels based on a comprehensive literature review, several internationally recognized guidelines, and the collective expertise of the guidelines committee members (authors) who were selected by the Saudi Oncology Society and Saudi Urological Association. Local factors, such as availability, logistic feasibility, and familiarity of various treatment modalities, have been taken into consideration. These guidelines should serve as a roadmap for the urologists, oncologists, general physicians, support groups, and health-care policymakers in the management of patients diagnosed with adenocarcinoma of the prostate.

20.
Urol Ann ; 10(2): 123-132, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29719321

RESUMO

In this report, we update the previously published Saudi guidelines for the evaluation and medical and surgical management of renal cell carcinoma. It is categorized according to the stage of the disease using the tumor node metastasis staging system 7th edition. The recommendations are presented with supporting evidence level.

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