This is a prospective observational study investigating how physicians assess the risk of febrile neutropenia (FN) developing in patients who will receive chemotherapy. Approximately 150-200 investigators will take part in about 100 sites in Europe, Canada and Australia. Approximately 1000 subjects will be studied, all of whom will have non-small cell lung cancer (NSCLC), small cell lung cancer (SCLC), non-Hodgkin's lymphoma (NHL) or breast cancer and will be due to receive one of the specific chemotherapy regimens of interest. Investigators' approach to FN risk assessment will be studied using lists of possible risk factors they may consider during their assessment. Investigators will be asked to select and rank the factors they consider the most important when assessing the overall FN risk of a subject and when making the decision whether to treat with granulocyte-colony stimulating factor (G-CSF) primary prophylaxis (PP). They will be asked to make these selections based initially on their own routine clinical practise and subsequently relating specifically to each subject recruited. This is a non-interventional study that involves no procedures outside normal care for the subjects; all data collection will be completed prior to chemotherapy administration.
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Percentage of Investigators Who Ranked Age and Chemotherapy Regimen as a Risk Factor for Febrile Neutropenia
Timeframe: Baseline (prior to participant enrolment)
Percentage of Investigators Who Ranked Each Factor as a Risk Factor for Febrile Neutropenia (FN)
Timeframe: Assessed at Baseline, prior to participant enrolment.
Percentage of Participants for Whom Age and Chemotherapy Regimen Were Ranked as an Important Risk Factor
Timeframe: At enrolment, prior to chemotherapy initiation
Percentage of Participants for Whom Each FN Risk Factor Was Ranked as Important
Timeframe: At enrolment, prior to chemotherapy initiation.