Myelosuppression

This study is a prospective, single arm phase II clinical trial aimed at patients with advanced non-small cell lung cancer resistant to EGFR-TKI. The aim is to evaluate the efficacy and safety of trilaciclib in bone marrow protection before monotherapy with sacituzumab tirumotecan. Patients with advanced non-small cell lung cancer resistant to EGFR-TKI, after signing informed consent, will be screened for eligible subjects who meet the inclusion criteria. Prior to receiving treatment with sacituzumab tirumotecan, they will be treated with trilaciclib until disease progression or intolerable toxicity occurs. Record the dynamic changes of whole blood cell count; Hematological toxicity, including febrile neutropenia and associated infections; Transfusion of blood products and supplementation of hematopoietic raw materials. Perform tumor imaging evaluation according to RECIST 1.1. Baseline imaging examination should be conducted within 21 days prior to the first administration, and tumor imaging evaluation shall be conducted every 6 weeks (± 7 days) from the first study drug administration, or the frequency of imaging evaluation may be increased when there are clinical indications. Subjects who terminate the study drug treatment due to intolerable toxicity or other non disease progression reasons continue to receive tumor evaluation follow-up until disease progression, withdrawal from the study, or death (whichever occurs earliest). After the screening period and one cycle of treatment, subjects may choose to undergo whole-body PET/CT imaging for exploratory analysis.

This is a prospective observational study designed to observe and evaluate the safety and efficacy of mecapegfilgrastim in the treatment of moderate-to-severe myelosuppression associated with concurrent chemoradiotherapy. The project will provide more robust evidence-based medical support for the use of long-acting granulocyte-stimulating agents in patients undergoing concurrent chemoradiotherapy.

This study is a prospective, single arm phase II study aimed at patients with locally advanced or metastatic non-small cell lung cancer undergoing second-line or beyond treatment. The aim is to evaluate the bone marrow protective effect of trilaciclib before docetaxel chemotherapy for locally advanced or metastatic NSCLC.

This study is a prospective, open label, randomized controlled clinical trial aimed at patients with Ewing's sarcoma who have not received systematic anti-tumor treatment in the past. The aim is to evaluate the efficacy and safety of prophylactic use of Trilaciclib before VDC+IE chemotherapy. Patients with Ewing's sarcoma who have not received systemic anti-tumor therapy in the past will be screened for qualified subjects who meet the inclusion criteria after signing informed consent. Eligible patients will be randomly divided into an experimental group and a control group in a 1:1 ratio. The control group will receive alternating VDC+IE chemotherapy for 3 weeks, a total of 17 cycles, or until disease progression, intolerable adverse reactions, or withdrawal of informed consent occur. The experimental group received VDC+IE alternating chemotherapy combined with Trilaciclib, with 3 weeks as one course of treatment, for a total of 17 cycles or until disease progression, intolerable toxicity, withdrawal of informed consent, initiation of other anti-tumor treatments, death, or other situations specified in the protocol where treatment should be discontinued. Both the control group and the experimental group can receive supportive nursing treatment according to clinical needs.

Current Survey on Chemotherapy-Related Myelosuppression and Clinical Management in Chinese County-level Tumor Patients

To evaluate the protective effect of Trilaciclib on myelosuppression in patients with limited-stage small cell lung cancer associated with concurrent chemoradiotherapy and discuss the effect of gut microbiota changes on myelosuppression

Toxic and side effects during and after chemoradiotherapy for nasopharyngeal carcinoma seriously affect patients' treatment compliance and long-term quality of life. Active and effective prediction, prevention and management of toxic and side effects is an important element to improve the prognosis of patients. Leucogen has the ability to promote the growth and maturation of granulocytes in the bone marrow and the proliferation of leukocytes, and is widely used in radiation therapy and chemotherapy-induced leukopenia in malignant carcinomas. In addition, leucogen may have potential anticancer synergistic effects. Therefore, based on the application prospect of leucogen in preventing myelosuppression during chemotherapy for solid tumors, the study was designed to investigate the efficacy and safety of leucogen versus placebo on leukocyte and platelet whole-course management assisted by platinum plus low-dose long-term continuous intravenous infused 5-fluorouracil chemotherapy in the treatment of stage IV, recurrent or metastatic nasopharyngeal carcinoma.