{Reference Type}: Journal Article {Title}: A multicenter, prospective, non-interventional real-world study to assess the effectiveness of mecapegfilgrastim in preventing neutropenia in patients with gastrointestinal cancer. {Author}: Mao C;He Y;Xu N;Yan H;Zhang N;Cheng G;Jiang H;Chen M;Chen Y;Wang X;Gu Y;Shen P;Zhang G;Yan J;Yang Z;Ding L;Han Z;Wang Z;Zhang J;Zheng W;Wang J;Qin S; {Journal}: Immun Inflamm Dis {Volume}: 12 {Issue}: 8 {Year}: 2024 Aug {Factor}: 2.493 {DOI}: 10.1002/iid3.1348 {Abstract}: BACKGROUND: Mecapegfilgrastim, a long-acting granulocyte-colony stimulating factor has been approved for reducing the incidence of infection, particularly febrile neutropenia (FN), in China.
OBJECTIVE: We conducted a multicenter prospective observational study to examine the safety and effectiveness of mecapegfilgrastim in preventing neutropenia in gastrointestinal patients receiving the chemotherapy, including S-1/capecitabine-based regimens or the fluorouracil, leucovorin, oxaliplatin, and irinotecan (FOLFOXIRI)/fluorouracil, leucovorin, and oxaliplatin (FOLFOX)/fluorouracil, leucovorin, oxaliplatin, and irinotecan (FOLFIRINOX) regimens.
METHODS: Five hundred and sixty-one gastrointestinal patients from 40 sites across China, between May 2019 and November 2021, were included. The administration of mecapegfilgrastim was prescribed at the discretion of local physicians.
RESULTS: The most common adverse drug reactions (ADRs) of any grade for all patients was increased white blood cells (2.9%). Grade 3/4 ADRs were observed for anemia (0.2%), decreased white blood cells (0.2%), and decreased neutrophil count (0.2%). Among the 116 patients who received S-1/capecitabine-based chemotherapy throughout all cycles, ADRs of any grade included anemia (1.7%), myalgia (0.9%), and increased alanine aminotransferase (0.9%). No grade 3/4 ADRs were observed. In 414 cycles of patients who underwent S-1/capecitabine-based regimens, only one (0.2%) cycle experienced grade 4 neutropenia. In the FOLFIRINOX, FOLFOXIRI, and FOLFOX chemotherapy regimens, grade 4 neutropenia occurred in one (2.7%) of 37 cycles, four (4.7%) of 85 cycles, and two (1.2%) of 167 cycles, respectively.
CONCLUSIONS: In a real-world setting, mecapegfilgrastim has proven effective in preventing severe neutropenia in gastrointestinal patients following chemotherapy. This includes commonly used moderate or high-risk FN regimens or regimens containing S1/capecitabine, all of which have demonstrated favorable efficacy and safety profiles.