地諾單抗治療復發(fā)或難治骨巨細胞瘤療效和安全性的初步觀察
[Abstract]:Objective to evaluate the short-term efficacy and safety of (denosumab) in the treatment of giant cell tumor of bone (giant cell tumor,GCT). Methods from February to December, 2014, 25 patients with GCT were treated with dinomab in our hospital, including 12 males and 13 females, with an average age of 33.7 (1858) years. All the patients had definite pathological diagnosis of GCT. 5 cases were diagnosed as malignant in GCT. 16 cases (treatment group) had imaging to evaluate the lesions. 9 cases (prophylactic group) had received surgical treatment before medication, and no imaging could be used to evaluate the lesions in vivo. However, due to unsatisfactory surgical boundaries or pathological indications of malignancy, desnoxumab was used as a prophylactic treatment. All patients were subcutaneously injected with 120 mg desaminotumab every 4 weeks, and the loading dose was increased twice on day 8 and day 15. Safety assessment indicators mainly include adverse drug reactions (clinical symptoms and laboratory abnormalities). The evaluation of curative effect included: treatment group (16 cases) were treated with solid tumor evaluation standard (response evaluation criteria in solid tumors,RECIST), prophylactic drug group (9 cases) were observed as event free survival rate (event free survival,EFS). In addition to routine imaging evaluation such as CT and MRI, the expression of (receptor activator of nuclear factor- 魏 B ligand,RANKL, a receptor ligand of nuclear factor 魏 B activator, was detected in 2 patients with malignant GCT before treatment by secondary biopsy and PET-CT examination. Results the initial medication was used as the starting time, and the last time was March 1, 2015. The mean follow-up time was 6 (4 / 12) months. There were no death cases during the treatment, the patients were treated according to the plan, the average number of times was 7.4 (6 / 17), and the compliance was good. Side effects included bone pain (4 cases), hypocalcemia (3 cases), fever (3 cases), tumor rupture and formation of sinus tract (2 cases) and fatigue fracture (1 case). No osteonecrosis of the mandible was seen. The evaluation of RECIST showed that 1 case had complete remission, 8 cases had partial remission, 6 cases had stable disease, and 1 case had disease progression. Histologically, no residual giant cell tumor components were found in 1 case. PET-CT showed that SUVmax uptake decreased to normal muscle tissue level in 2 cases. The expression of RANKL in tumor tissue was detected in 2 cases before medication. The results showed that the expression level of RANKL was correlated with the curative effect. The EFS of preventive medication group (9 cases) was 100 at 4 months and 6 months. Conclusion Dinocumab is a safe and effective treatment for patients with refractory GCT and malignant GCT and patients with pulmonary metastasis should also be considered for treatment. In assessing the efficacy of dinolumab, biopsy and PET-CT results should be combined on the basis of RECIST criteria. The expression of RANKL in tumor tissue was correlated with the therapeutic effect.
【作者單位】: 北京大學人民醫(yī)院骨與軟組織腫瘤治療中心;
【分類號】:R738.1
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