Abstract
Aim. To assess the proportion and profile of patients at high risk of febrile neutropenia (FN) receiving cytotoxic chemotherapy (CT), as well as the incidence of FN and dose-limiting neutropenia after one cycle of CT.
 Materials and methods. The paper presents the results of the FLAME study, the first Russian observational study in patients with solid tumors who received only cytotoxic CT or a combination with targeted, immuno-oncological drugs. By random sampling, the study retrospectively included 500 patients with a median age of 59 years (18–83 years) from 25 medical institutions in the Russian Federation.
 Results. CT regimens with a high (20%) risk of FN were received by 25.2% (126/500) of patients; 53% (265/500) of patients had intermediate risk, and half of them (132/265 [49.8%]) had at least one additional risk FN factor following international NCCN guidelines. Thus, a high risk of FN, according to the therapy and the assessment of individual prognostic adverse factors, was noted in 51.6% (258/500) of patients. 36.8% (95/258) of patients with high risk for FN received primary prophylaxis with granulocyte colony-stimulating factors.
 Conclusion. The study showed a significant proportion of patients with a high risk of FN, and most of them do not receive primary prophylaxis of FN.
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