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1.
ESMO Open ; 6(3): 100134, 2021 06.
Artículo en Inglés | MEDLINE | ID: mdl-33984676

RESUMEN

BACKGROUND: The impact of the first coronavirus disease 2019 (COVID-19) wave on cancer patient management was measured within the nationwide network of the Unicancer comprehensive cancer centers in France. PATIENTS AND METHODS: The number of patients diagnosed and treated within 17 of the 18 Unicancer centers was collected in 2020 and compared with that during the same periods between 2016 and 2019. Unicancer centers treat close to 20% of cancer patients in France yearly. The reduction in the number of patients attending the Unicancer centers was analyzed per regions and cancer types. The impact of delayed care on cancer-related deaths was calculated based on different hypotheses. RESULTS: A 6.8% decrease in patients managed within Unicancer in the first 7 months of 2020 versus 2019 was observed. This reduction reached 21% during April and May, and was not compensated in June and July, nor later until November 2020. This reduction was observed only for newly diagnosed patients, while the clinical activity for previously diagnosed patients increased by 4% similar to previous years. The reduction was more pronounced in women, in breast and prostate cancers, and for patients without metastasis. Using an estimated hazard ratio of 1.06 per month of delay in diagnosis and treatment of new patients, we calculated that the delays observed in the 5-month period from March to July 2020 may result in an excess mortality due to cancer of 1000-6000 patients in coming years. CONCLUSIONS: In this study, the delays in cancer patient management were observed only for newly diagnosed patients, more frequently in women, for breast cancer, prostate cancer, and nonmetastatic cancers. These delays may result is an excess risk of cancer-related deaths in the coming years.


Asunto(s)
COVID-19 , Neoplasias/complicaciones , COVID-19/complicaciones , Femenino , Francia , Humanos , Masculino , SARS-CoV-2
2.
Cancer Chemother Pharmacol ; 62(4): 679-83, 2008 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-18084764

RESUMEN

OBJECTIVE: To evaluate the pharmacokinetic inter-patient variability of 30-min hyperthermic intraperitoneal oxaliplatin chemotherapy. PATIENTS AND METHODS: Data were obtained from 24 patients who were treated according to two procedures of heated intra-operative intraperitoneal oxaliplatin. For the first procedure (12 patients), the solution instilled within the peritoneal cavity contained oxaliplatin, and a delay of 8-10 min was necessary to reach a temperature of 42-43 degrees C. For the second procedure (12 patients), the cavity was initially filled only with the dextrose solution, and oxaliplatin was added to the peritoneal instillate when temperature reached 42-43 degrees C. Plasma and peritoneal fluid oxaliplatin concentrations were analyzed according to a population pharmacokinetic approach using NONMEM. RESULTS: Peritoneal and total plasma data were simultaneously analyzed according to a three-compartment pharmacokinetic model. The peritoneal half-life ranged between 18 and 42 min. The mean peritoneal clearance was 5.47 L/h (+/-21%), and the mean plasma clearance was 3.71 L/h (+/-47%). The heated intra-operative procedure did not have any impact on oxaliplatin pharmacokinetics. CONCLUSION: The inter-individual variability was larger for plasma pharmacokinetic parameters than that for peritoneal parameters. However, the percentage of oxaliplatin dose absorbed during a 30-min hyperthermic intraperitoneal chemotherapy may vary from 40 to 68%. The present pharmacokinetic model will be useful to implement pharmacokinetic evaluation of further clinical trials of hyperthermic intraperitoneal chemotherapy based on platinum compounds' administration.


Asunto(s)
Antineoplásicos/farmacocinética , Hipertermia Inducida , Neoplasias/metabolismo , Compuestos Organoplatinos/farmacocinética , Piridinas/farmacocinética , Adulto , Anciano , Antineoplásicos/administración & dosificación , Antineoplásicos/efectos adversos , Líquido Ascítico/química , Cromatografía Líquida de Alta Presión , Terapia Combinada , Relación Dosis-Respuesta a Droga , Monitoreo de Drogas , Femenino , Humanos , Infusiones Parenterales , Masculino , Persona de Mediana Edad , Neoplasias/tratamiento farmacológico , Compuestos Organoplatinos/administración & dosificación , Compuestos Organoplatinos/efectos adversos , Piridinas/administración & dosificación , Piridinas/efectos adversos
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